CHANGELOG.md

@@ -1,75 +1,3 @@
-## v4.5.0
-
-### New Features
-
-- Add `noline` grammar statement to skip emitting `#line` directives
-- Attempt to autodetect target language (D/C++) in extra/vim/syntax/propane.vim
-
-### Fixes
-
-- Fix #line reset directives
-- Update keyword list in extra/vim/syntax/propane.vim
-
-## v4.4.0
-
-### New Features
-
-- Add p_value_get() / p_value_get_XXX() accessors
-
-## v4.3.0
-
-### New Features
-
-- Use #line for user code blocks to report input grammar position for errors.
-
-## v4.2.0
-
-### New Features
-
-- Add support for a custom lex function.
-
-## v4.1.0
-
-### New Features
-
-- Add `p_context_delete()` and `p_tree_delete()` for D targets.
-
-## v4.0.0
-
-### New Features
-
-- Add `context_user_fields` statement to allow custom context user fields.
-- Add `token_user_fields` statement to allow custom token user fields.
-- Add `on_token_node` statement to allow custom code when constructing token nodes.
-- Add `free_token_node` statement to allow custom code when freeing token nodes.
-- Add `p_context_delete()`.
-- Allow `drop` patterns to execute lexer user code blocks.
-
-### Breaking Changes
-
-- Replace `p_context_init()` with `p_context_new()` and `p_context_delete()`.
-- Renamed `p_free_tree()` to `p_tree_delete()`.
-- The `free_token_node` statement now takes a user code block instead of a
-  function name parameter.
-
-## v3.0.0
-
-### New Features
-
-- Add support for multiple starting rules (#38)
-- Add `p_free_tree()` functions to reclaim generated tree memory
-- Add `free_token_node` grammar statement to reclaim user-allocated memory stored in a Token tree node `pvalue` field
-- Add valgrind memory leak tests to unit tests
-- Fix build issues for C++ to officially support C++ target output
-
-### Improvements
-
-- Document `p_lex()` and `p_token_info_t` in user guide (#37)
-
-### Breaking Changes
-
-- Rename AST generation mode to tree generation mode (see [UPGRADING.md](UPGRADING.md))
-
 ## v2.3.0
 
 ### New Features

Gemfile.lock

@@ -5,12 +5,12 @@ GEM
     date (3.5.1)
     diff-lcs (1.6.2)
     docile (1.4.1)
-    erb (6.0.4)
+    erb (6.0.1)
-    psych (5.4.0)
+    psych (5.3.1)
       date
       stringio
-    rake (13.4.2)
+    rake (13.3.1)
-    rdoc (7.2.0)
+    rdoc (7.1.0)
       erb
       psych (>= 4.0.0)
       tsort
@@ -24,10 +24,10 @@ GEM
     rspec-expectations (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-mocks (3.13.8)
+    rspec-mocks (3.13.7)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-support (3.13.7)
+    rspec-support (3.13.6)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -51,4 +51,4 @@ DEPENDENCIES
   syntax
 
 BUNDLED WITH
-  4.0.14
+   2.3.7

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2010-2026 Josh Holtrop
+Copyright (c) 2010-2024 Josh Holtrop
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -7,9 +7,7 @@ Propane is a LALR Parser Generator (LPG) which:
   * supports UTF-8 lexer inputs
   * generates a table-driven shift/reduce parser to parse input in linear time
   * targets C, C++, or D language outputs
-  * optionally supports automatic full parse tree generation
+  * optionally supports automatic full AST generation
-  * supports starting parsing from multiple start rules
-  * tracks input text start and end positions for all matched tokens/rules
   * is MIT-licensed
   * is distributable as a standalone Ruby script
 

UPGRADING.md

@@ -1,21 +0,0 @@
-## v4.0.0
-
-### API Changes
-
-- Replace any calls to `p_context_init()` with `p_context_new()`.
-- Replace any references to the address of a statically allocated context
-  structure with the pointer returned from `p_context_init()` (e.g. `&context`
-  -> `context`).
-- Add a call to `p_context_delete()` (for C or C++) after lexing/parsing to
-  reclaim context memory.
-- Rename `p_free_tree()` calls to `p_tree_delete()`.
-- Change `free_token_node` statement calls from taking a function name argument
-  to taking a user code block.
-
-## v3.0.0
-
-### Grammar Changes
-
-- Rename `ast;` statement to `tree;`.
-- Rename `ast_prefix;` statement to `tree_prefix;`.
-- Rename `ast_suffix;` statement to `tree_suffix;`.

assets/parser.c.erb

@@ -43,52 +43,30 @@ const char * <%= @grammar.prefix %>token_names[] = {
  *************************************************************************/
 
 /**
- * Allocate and initialize lexer/parser context structure.
+ * Initialize lexer/parser context structure.
- *
- * Deinitialize and deallocate with <%= @grammar.prefix %>context_delete().
  *
+ * @param[out] context
+ *   Lexer/parser context structure.
  * @param input
  *   Text input.
  * @param input_length
  *   Text input length.
- *
- * @return Context structure for lexer/parser.
  */
-<%= @grammar.prefix %>context_t * <%= @grammar.prefix %>context_new(uint8_t const * input, size_t input_length)
+void <%= @grammar.prefix %>context_init(<%= @grammar.prefix %>context_t * context, uint8_t const * input, size_t input_length)
 {
-<% if @cpp %>
+    /* New default-initialized context structure. */
-    <%= @grammar.prefix %>context_t * context = new <%= @grammar.prefix %>context_t();
+    <%= @grammar.prefix %>context_t newcontext;
-<% else %>
+    memset(&newcontext, 0, sizeof(newcontext));
-    <%= @grammar.prefix %>context_t * context = (<%= @grammar.prefix %>context_t *)calloc(1, sizeof(<%= @grammar.prefix %>context_t));
-<% end %>
 
     /* Lexer initialization. */
-    context->input = input;
+    newcontext.input = input;
-    context->input_length = input_length;
+    newcontext.input_length = input_length;
-    context->text_position.row = 1u;
+    newcontext.text_position.row = 1u;
-    context->text_position.col = 1u;
+    newcontext.text_position.col = 1u;
-    context->mode = <%= @lexer.mode_id("default") %>;
+    newcontext.mode = <%= @lexer.mode_id("default") %>;
 
-    return context;
+    /* Copy to the user's context structure. */
-}
+    *context = newcontext;
-
-/**
- * Deinitialize and deallocate lexer/parser context structure.
- *
- * For C++, destructors will be called for any context user fields. However, if
- * pointers are used to store allocated resources, the user should free them
- * before calling this function.
- *
- * @param context
- *   Lexer/parser context structure allocated with <%= @grammar.prefix %>context_new().
- */
-void <%= @grammar.prefix %>context_delete(<%= @grammar.prefix %>context_t * context)
-{
-<% if @cpp %>
-    delete context;
-<% else %>
-    free(context);
-<% end %>
 }
 
 /**************************************************************************
@@ -660,7 +638,7 @@ typedef struct
      * reduce action.
      */
     parser_state_id_t n_states;
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 
     /**
      * Map of rule components to rule set child fields.
@@ -668,7 +646,7 @@ typedef struct
     uint16_t const * rule_set_node_field_index_map;
 
     /**
-     * Number of rule set tree node fields.
+     * Number of rule set AST node fields.
      */
     uint16_t rule_set_node_field_array_size;
 
@@ -710,23 +688,19 @@ typedef struct
     /** Parser value from this state. */
     <%= @grammar.prefix %>value_t pvalue;
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-    /** tree node. */
+    /** AST node. */
-    void * tree_node;
+    void * ast_node;
 <% end %>
 } state_value_t;
 
-<% if @grammar.tree %>
+/** Common AST node structure. */
-/** Common tree node structure. */
+typedef struct
-typedef struct TreeNode_s
 {
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    uint16_t n_fields;
+    void * fields[];
-    uint8_t is_token;
+} ASTNode;
-    struct TreeNode_s * fields[];
-} TreeNode;
-<% end %>
 
 /** Parser shift table. */
 static const shift_t parser_shift_table[] = {
@@ -735,7 +709,7 @@ static const shift_t parser_shift_table[] = {
 <%   end %>
 };
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 <%   @grammar.rules.each do |rule| %>
 <%     unless rule.flat_rule_set_node_field_index_map? %>
 const uint16_t r_<%= rule.name.gsub("$", "_") %><%= rule.id %>_node_field_index_map[<%= rule.rule_set_node_field_index_map.size %>] = {<%= rule.rule_set_node_field_index_map.map {|v| v.to_s}.join(", ") %>};
@@ -750,14 +724,14 @@ static const reduce_t parser_reduce_table[] = {
         <%= reduce[:token_id] %>u, /* Token: <%= reduce[:token] ? reduce[:token].name : "(any)" %> */
         <%= reduce[:rule_id] %>u, /* Rule ID */
         <%= reduce[:rule_set_id] %>u, /* Rule set ID (<%= reduce[:rule].rule_set.name %>) */
-<%     if @grammar.tree %>
+<%     if @grammar.ast %>
         <%= reduce[:n_states] %>u, /* Number of states */
 <%       if reduce[:rule].flat_rule_set_node_field_index_map? %>
         NULL, /* No rule set node field index map (flat map) */
 <%       else %>
         &r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0], /* Rule set node field index map */
 <%       end %>
-        <%= reduce[:rule].rule_set.tree_fields.size %>, /* Number of tree fields */
+        <%= reduce[:rule].rule_set.ast_fields.size %>, /* Number of AST fields */
         <%= reduce[:propagate_optional_target] %>}, /* Propagate optional target? */
 <%     else %>
         <%= reduce[:n_states] %>u},
@@ -865,7 +839,7 @@ static void state_values_stack_free(state_values_stack_t * stack)
      free(stack->entries);
 }
 
-<% unless @grammar.tree %>
+<% unless @grammar.ast %>
 /**
  * Execute user code associated with a parser rule.
  *
@@ -948,8 +922,6 @@ static size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token)
  *
  * @param context
  *   Lexer/parser context structure.
- * @start_state_id
- *   ID of the state in which to start.
  *
  * @retval P_SUCCESS
  *   The parser successfully matched the input text. The parse result value
@@ -962,26 +934,25 @@ static size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token)
  * @reval P_UNEXPECTED_INPUT
  *   Input text does not match any lexer pattern.
  */
-static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start_state_id)
+size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context)
 {
     <%= @grammar.prefix %>token_info_t token_info;
     <%= @grammar.prefix %>token_t token = INVALID_TOKEN_ID;
     state_values_stack_t statevalues;
     size_t reduced_rule_set = INVALID_ID;
-<% if @grammar.tree %>
+<% if @grammar.ast %>
     void * reduced_parser_node;
 <% else %>
     <%= @grammar.prefix %>value_t reduced_parser_value;
 <% end %>
     state_values_stack_init(&statevalues);
     state_values_stack_push(&statevalues);
-    state_values_stack_index(&statevalues, -1)->state_id = start_state_id;
     size_t result;
     for (;;)
     {
         if (token == INVALID_TOKEN_ID)
         {
-            size_t lexer_result = <%= lex_fn %>(context, &token_info);
+            size_t lexer_result = <%= @grammar.prefix %>lex(context, &token_info);
             if (lexer_result != P_SUCCESS)
             {
                 result = lexer_result;
@@ -1000,8 +971,8 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
             if ((shift_state != INVALID_ID) && (token == TOKEN___EOF))
             {
                 /* Successful parse. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-                context->parse_result = state_values_stack_index(&statevalues, -1)->tree_node;
+                context->parse_result = (<%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> *)state_values_stack_index(&statevalues, -1)->ast_node;
 <% else %>
                 context->parse_result = state_values_stack_index(&statevalues, -1)->pvalue;
 <% end %>
@@ -1017,20 +988,13 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
             if (reduced_rule_set == INVALID_ID)
             {
                 /* We shifted a token, mark it consumed. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-<%   if @cpp %>
+                <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %> * token_ast_node = (<%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %> *)malloc(sizeof(<%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>));
-                <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> * token_tree_node = new <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>();
+                token_ast_node->position = token_info.position;
-<%   else %>
+                token_ast_node->end_position = token_info.end_position;
-                <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> * token_tree_node = (<%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> *)malloc(sizeof(<%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>));
+                token_ast_node->token = token;
-<%   end %>
+                token_ast_node->pvalue = token_info.pvalue;
-                token_tree_node->position = token_info.position;
+                state_values_stack_index(&statevalues, -1)->ast_node = token_ast_node;
-                token_tree_node->end_position = token_info.end_position;
-                token_tree_node->n_fields = 0u;
-                token_tree_node->is_token = 1u;
-                token_tree_node->token = token;
-                token_tree_node->pvalue = token_info.pvalue;
-<%= expand_code(@grammar.on_token_node, false, nil, nil) %>
-                state_values_stack_index(&statevalues, -1)->tree_node = token_tree_node;
 <% else %>
                 state_values_stack_index(&statevalues, -1)->pvalue = token_info.pvalue;
 <% end %>
@@ -1039,8 +1003,8 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
             else
             {
                 /* We shifted a RuleSet. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-                state_values_stack_index(&statevalues, -1)->tree_node = reduced_parser_node;
+                state_values_stack_index(&statevalues, -1)->ast_node = reduced_parser_node;
 <% else %>
                 state_values_stack_index(&statevalues, -1)->pvalue = reduced_parser_value;
                 <%= @grammar.prefix %>value_t new_parse_result;
@@ -1056,38 +1020,39 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
         if (reduce_index != INVALID_ID)
         {
             /* We have something to reduce. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
             if (parser_reduce_table[reduce_index].propagate_optional_target)
             {
-                reduced_parser_node = state_values_stack_index(&statevalues, -1)->tree_node;
+                reduced_parser_node = state_values_stack_index(&statevalues, -1)->ast_node;
             }
             else if (parser_reduce_table[reduce_index].n_states > 0)
             {
                 size_t n_fields = parser_reduce_table[reduce_index].rule_set_node_field_array_size;
-                size_t bytes = sizeof(TreeNode) + n_fields * sizeof(void *);
+                ASTNode * node = (ASTNode *)malloc(sizeof(ASTNode) + n_fields * sizeof(void *));
-                TreeNode * node = (TreeNode *)malloc(bytes);
-                memset(node, 0, bytes);
                 node->position = INVALID_POSITION;
                 node->end_position = INVALID_POSITION;
-                node->n_fields = n_fields;
+                for (size_t i = 0; i < n_fields; i++)
+                {
+                    node->fields[i] = NULL;
+                }
                 if (parser_reduce_table[reduce_index].rule_set_node_field_index_map == NULL)
                 {
                     for (size_t i = 0; i < parser_reduce_table[reduce_index].n_states; i++)
                     {
-                        node->fields[i] = (TreeNode *)state_values_stack_index(&statevalues, -(int)parser_reduce_table[reduce_index].n_states + (int)i)->tree_node;
+                        node->fields[i] = state_values_stack_index(&statevalues, -(int)parser_reduce_table[reduce_index].n_states + (int)i)->ast_node;
                     }
                 }
                 else
                 {
                     for (size_t i = 0; i < parser_reduce_table[reduce_index].n_states; i++)
                     {
-                        node->fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = (TreeNode *)state_values_stack_index(&statevalues, -(int)parser_reduce_table[reduce_index].n_states + (int)i)->tree_node;
+                        node->fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = state_values_stack_index(&statevalues, -(int)parser_reduce_table[reduce_index].n_states + (int)i)->ast_node;
                     }
                 }
                 bool position_found = false;
                 for (size_t i = 0; i < n_fields; i++)
                 {
-                    TreeNode * child = node->fields[i];
+                    ASTNode * child = (ASTNode *)node->fields[i];
                     if ((child != NULL) && <%= @grammar.prefix %>position_valid(child->position))
                     {
                         if (!position_found)
@@ -1109,7 +1074,6 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
             memset(&reduced_parser_value2, 0, sizeof(reduced_parser_value2));
             if (parser_user_code(&reduced_parser_value2, parser_reduce_table[reduce_index].rule, &statevalues, parser_reduce_table[reduce_index].n_states, context) == P_USER_TERMINATED)
             {
-                state_values_stack_free(&statevalues);
                 return P_USER_TERMINATED;
             }
             reduced_parser_value = reduced_parser_value2;
@@ -1133,19 +1097,6 @@ static size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start
     return result;
 }
 
-size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context)
-{
-    return parse_from(context, 0u);
-}
-
-<% @grammar.start_rules.each_with_index do |start_rule, i| %>
-
-size_t <%= @grammar.prefix %>parse_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return parse_from(context, <%= i %>u);
-}
-<% end %>
-
 /**
  * Get the parse result value.
  *
@@ -1154,29 +1105,18 @@ size_t <%= @grammar.prefix %>parse_<%= start_rule %>(<%= @grammar.prefix %>conte
  *
  * @return Parse result value.
  */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
+<%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
-{
-    return (<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> *) context->parse_result;
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return (<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> *) context->parse_result;
-}
-<%   end %>
 <% else %>
 <%= start_rule_type[1] %> <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
+<% end %>
 {
+<% if @grammar.ast %>
+    return context->parse_result;
+<% else %>
     return context->parse_result.v_<%= start_rule_type[0] %>;
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-<%= start_rule_type(i)[1] %> <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return context->parse_result.v_<%= start_rule_type(i)[0] %>;
-}
-<%   end %>
 <% end %>
+}
 
 /**
  * Get the current text input position.
@@ -1213,48 +1153,3 @@ size_t <%= @grammar.prefix %>user_terminate_code(<%= @grammar.prefix %>context_t
 {
     return context->token;
 }
-<% if @grammar.tree %>
-
-static void tree_delete(TreeNode * node)
-{
-    if (node->is_token)
-    {
-        <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> * token_tree_node = (<%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> *)node;
-<%= expand_code(@grammar.free_token_node, false, nil, nil) %>
-<%   if @cpp %>
-        delete token_tree_node;
-<%   else %>
-        free(token_tree_node);
-<%   end %>
-    }
-    else if (node->n_fields > 0u)
-    {
-        for (size_t i = 0u; i < node->n_fields; i++)
-        {
-            if (node->fields[i] != NULL)
-            {
-                tree_delete(node->fields[i]);
-            }
-        }
-        free(node);
-    }
-}
-
-/**
- * Free all tree node memory.
- */
-void <%= @grammar.prefix %>tree_delete(<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * tree)
-{
-    tree_delete((TreeNode *)tree);
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-
-/**
- * Free all tree node memory.
- */
-void <%= @grammar.prefix %>tree_delete_<%= start_rule %>(<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * tree)
-{
-    tree_delete((TreeNode *)tree);
-}
-<%   end %>
-<% end %>

assets/parser.d.erb

@@ -9,7 +9,7 @@ module <%= @grammar.modulename %>;
 <% end %>
 
 import core.memory;
-import core.stdc.stdlib : malloc, free;
+import core.stdc.stdlib : malloc;
 
 /**************************************************************************
  * User code blocks
@@ -75,7 +75,7 @@ public struct <%= @grammar.prefix %>position_t
     }
 }
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 /** Parser values type. */
 public alias <%= @grammar.prefix %>value_t = <%= @grammar.ptype %>;
 <% else %>
@@ -86,58 +86,35 @@ public union <%= @grammar.prefix %>value_t
     <%= typestring %> v_<%= name %>;
 <%   end %>
 }
-
-/** Parser value constructor(s). */
-<%   @grammar.ptypes.each do |name, typestring| %>
-public <%= @grammar.prefix %>value_t <%= @grammar.prefix %>value<%= name == "default" ? "" : "_#{name}" %>(T)(T v)
-{
-    return <%= @grammar.prefix %>value_t(v_<%= name %>: v);
-}
 <% end %>
 
-/** Parser value accessor(s). */
+<% if @grammar.ast %>
-<%   @grammar.ptypes.each do |name, typestring| %>
+/** Common AST node structure. */
-public <%= typestring %> <%= @grammar.prefix %>value_get<%= name == "default" ? "" : "_#{name}" %>(<%= @grammar.prefix %>value_t * pvalue)
+private struct ASTNode
-{
-    return pvalue.v_<%= name %>;
-}
-<%   end %>
-<% end %>
-
-<% if @grammar.tree %>
-/** Common tree node structure. */
-private struct TreeNode
 {
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    ushort n_fields;
-    bool is_token;
     void *[0] fields;
 }
 
-/** Tree node types. @{ */
+/** AST node types. @{ */
-public struct <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>
+public struct <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>
 {
-    /* TreeNode fields must be present in the same order here. */
+    /* ASTNode fields must be present in the same order here. */
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    ushort n_fields;
-    bool is_token;
     <%= @grammar.prefix %>token_t token;
     <%= @grammar.prefix %>value_t pvalue;
-<%= @grammar.token_user_fields %>
 }
 
 <%   @parser.rule_sets.each do |name, rule_set| %>
 <%     next if name.start_with?("$") %>
 <%     next if rule_set.optional? %>
-public struct <%= @grammar.tree_prefix %><%= name %><%= @grammar.tree_suffix %>
+public struct <%= @grammar.ast_prefix %><%= name %><%= @grammar.ast_suffix %>
 {
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    ushort n_fields;
+<%     rule_set.ast_fields.each do |fields| %>
-    bool is_token;
-<%     rule_set.tree_fields.each do |fields| %>
     union
     {
 <%       fields.each do |field_name, type| %>
@@ -195,8 +172,8 @@ public struct <%= @grammar.prefix %>context_t
     /* Parser context data. */
 
     /** Parse result value. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-    void * parse_result;
+    <%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> * parse_result;
 <% else %>
     <%= @grammar.prefix %>value_t parse_result;
 <% end %>
@@ -206,8 +183,6 @@ public struct <%= @grammar.prefix %>context_t
 
     /** User terminate code. */
     size_t user_terminate_code;
-
-<%= @grammar.context_user_fields %>
 }
 
 /**************************************************************************
@@ -247,39 +222,26 @@ private enum size_t INVALID_ID = cast(size_t)-1;
  *************************************************************************/
 
 /**
- * Allocate and initialize lexer/parser context structure.
+ * Initialize lexer/parser context structure.
- *
- * Deinitialize and deallocate with <%= @grammar.prefix %>context_delete().
  *
+ * @param[out] context
+ *   Lexer/parser context structure.
  * @param input
  *   Text input.
- * @param input_length
- *   Text input length.
- *
- * @return Context structure for lexer/parser.
  */
-<%= @grammar.prefix %>context_t * <%= @grammar.prefix %>context_new(string input)
+public void <%= @grammar.prefix %>context_init(<%= @grammar.prefix %>context_t * context, string input)
 {
     /* New default-initialized context structure. */
-    <%= @grammar.prefix %>context_t * context = new <%= @grammar.prefix %>context_t;
+    <%= @grammar.prefix %>context_t newcontext;
 
     /* Lexer initialization. */
-    context.input = input;
+    newcontext.input = input;
-    context.text_position.row = 1u;
+    newcontext.text_position.row = 1u;
-    context.text_position.col = 1u;
+    newcontext.text_position.col = 1u;
-    context.mode = <%= @lexer.mode_id("default") %>;
+    newcontext.mode = <%= @lexer.mode_id("default") %>;
 
-    return context;
+    /* Copy to the user's context structure. */
-}
+    *context = newcontext;
-
-/**
- * Deinitialize and deallocate lexer/parser context structure.
- *
- * @param context
- *   Lexer/parser context structure allocated with <%= @grammar.prefix %>context_new().
- */
-void <%= @grammar.prefix %>context_delete(<%= @grammar.prefix %>context_t * context)
-{
 }
 
 /**************************************************************************
@@ -835,7 +797,7 @@ private struct reduce_t
      * reduce action.
      */
     parser_state_id_t n_states;
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 
     /**
      * Map of rule components to rule set child fields.
@@ -843,7 +805,7 @@ private struct reduce_t
     immutable(ushort) * rule_set_node_field_index_map;
 
     /**
-     * Number of rule set tree node fields.
+     * Number of rule set AST node fields.
      */
     ushort rule_set_node_field_array_size;
 
@@ -885,9 +847,9 @@ private struct state_value_t
     /** Parser value from this state. */
     <%= @grammar.prefix %>value_t pvalue;
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-    /** Tree node. */
+    /** AST node. */
-    void * tree_node;
+    void * ast_node;
 <% end %>
 
     this(size_t state_id)
@@ -903,7 +865,7 @@ private immutable shift_t[] parser_shift_table = [
 <%   end %>
 ];
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 <%   @grammar.rules.each do |rule| %>
 <%     unless rule.flat_rule_set_node_field_index_map? %>
 immutable ushort[<%= rule.rule_set_node_field_index_map.size %>] r_<%= rule.name.gsub("$", "_") %><%= rule.id %>_node_field_index_map = [<%= rule.rule_set_node_field_index_map.map {|v| v.to_s}.join(", ") %>];
@@ -918,14 +880,14 @@ private immutable reduce_t[] parser_reduce_table = [
         <%= reduce[:token_id] %>u, /* Token: <%= reduce[:token] ? reduce[:token].name : "(any)" %> */
         <%= reduce[:rule_id] %>u, /* Rule ID */
         <%= reduce[:rule_set_id] %>u, /* Rule set ID (<%= reduce[:rule].rule_set.name %>) */
-<%     if @grammar.tree %>
+<%     if @grammar.ast %>
         <%= reduce[:n_states] %>u, /* Number of states */
 <%       if reduce[:rule].flat_rule_set_node_field_index_map? %>
         null, /* No rule set node field index map (flat map) */
 <%       else %>
         &r_<%= reduce[:rule].name.gsub("$", "_") %><%= reduce[:rule].id %>_node_field_index_map[0], /* Rule set node field index map */
 <%       end %>
-        <%= reduce[:rule].rule_set.tree_fields.size %>, /* Number of tree fields */
+        <%= reduce[:rule].rule_set.ast_fields.size %>, /* Number of AST fields */
         <%= reduce[:propagate_optional_target] %>), /* Propagate optional target? */
 <%     else %>
         <%= reduce[:n_states] %>u), /* Number of states */
@@ -940,7 +902,7 @@ private immutable parser_state_t[] parser_state_table = [
 <%   end %>
 ];
 
-<% unless @grammar.tree %>
+<% unless @grammar.ast %>
 /**
  * Execute user code associated with a parser rule.
  *
@@ -1023,8 +985,6 @@ private size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token
  *
  * @param context
  *   Lexer/parser context structure.
- * @start_state_id
- *   ID of the state in which to start.
  *
  * @retval P_SUCCESS
  *   The parser successfully matched the input text. The parse result value
@@ -1037,14 +997,13 @@ private size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token
  * @reval P_UNEXPECTED_INPUT
  *   Input text does not match any lexer pattern.
  */
-private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t start_state_id)
+public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context)
 {
     <%= @grammar.prefix %>token_info_t token_info;
     <%= @grammar.prefix %>token_t token = INVALID_TOKEN_ID;
     state_value_t[] statevalues = new state_value_t[](1);
-    statevalues[0].state_id = start_state_id;
     size_t reduced_rule_set = INVALID_ID;
-<% if @grammar.tree %>
+<% if @grammar.ast %>
     void * reduced_parser_node;
 <% else %>
     <%= @grammar.prefix %>value_t reduced_parser_value;
@@ -1053,7 +1012,7 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
     {
         if (token == INVALID_TOKEN_ID)
         {
-            size_t lexer_result = <%= lex_fn %>(context, &token_info);
+            size_t lexer_result = <%= @grammar.prefix %>lex(context, &token_info);
             if (lexer_result != P_SUCCESS)
             {
                 return lexer_result;
@@ -1071,8 +1030,8 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
             if ((shift_state != INVALID_ID) && (token == TOKEN___EOF))
             {
                 /* Successful parse. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-                context.parse_result = statevalues[$-1].tree_node;
+                context.parse_result = cast(<%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> *)statevalues[$-1].ast_node;
 <% else %>
                 context.parse_result = statevalues[$-1].pvalue;
 <% end %>
@@ -1086,10 +1045,9 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
             if (reduced_rule_set == INVALID_ID)
             {
                 /* We shifted a token, mark it consumed. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-                <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %> * token_tree_node = new <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>(token_info.position, token_info.end_position, 0u, true, token, token_info.pvalue);
+                <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %> * token_ast_node = new <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>(token_info.position, token_info.end_position, token, token_info.pvalue);
-<%= expand_code(@grammar.on_token_node, false, nil, nil) %>
+                statevalues[$-1].ast_node = token_ast_node;
-                statevalues[$-1].tree_node = token_tree_node;
 <% else %>
                 statevalues[$-1].pvalue = token_info.pvalue;
 <% end %>
@@ -1098,8 +1056,8 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
             else
             {
                 /* We shifted a RuleSet. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-                statevalues[$-1].tree_node = reduced_parser_node;
+                statevalues[$-1].ast_node = reduced_parser_node;
 <% else %>
                 statevalues[$-1].pvalue = reduced_parser_value;
                 <%= @grammar.prefix %>value_t new_parse_result;
@@ -1114,21 +1072,19 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
         if (reduce_index != INVALID_ID)
         {
             /* We have something to reduce. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
             if (parser_reduce_table[reduce_index].propagate_optional_target)
             {
-                reduced_parser_node = statevalues[$ - 1].tree_node;
+                reduced_parser_node = statevalues[$ - 1].ast_node;
             }
             else if (parser_reduce_table[reduce_index].n_states > 0)
             {
                 size_t n_fields = parser_reduce_table[reduce_index].rule_set_node_field_array_size;
-                size_t node_size = TreeNode.sizeof + n_fields * (void *).sizeof;
+                size_t node_size = ASTNode.sizeof + n_fields * (void *).sizeof;
-                TreeNode * node = cast(TreeNode *)malloc(node_size);
+                ASTNode * node = cast(ASTNode *)malloc(node_size);
                 GC.addRange(node, node_size);
                 node.position = <%= @grammar.prefix %>position_t.INVALID;
                 node.end_position = <%= @grammar.prefix %>position_t.INVALID;
-                node.n_fields = cast(ushort)n_fields;
-                node.is_token = false;
                 foreach (i; 0..n_fields)
                 {
                     node.fields[i] = null;
@@ -1137,20 +1093,20 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
                 {
                     foreach (i; 0..parser_reduce_table[reduce_index].n_states)
                     {
-                        node.fields[i] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].tree_node;
+                        node.fields[i] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
                     }
                 }
                 else
                 {
                     foreach (i; 0..parser_reduce_table[reduce_index].n_states)
                     {
-                        node.fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].tree_node;
+                        node.fields[parser_reduce_table[reduce_index].rule_set_node_field_index_map[i]] = statevalues[$ - parser_reduce_table[reduce_index].n_states + i].ast_node;
                     }
                 }
                 bool position_found = false;
                 foreach (i; 0..n_fields)
                 {
-                    TreeNode * child = cast(TreeNode *)node.fields[i];
+                    ASTNode * child = cast(ASTNode *)node.fields[i];
                     if (child && child.position.valid)
                     {
                         if (!position_found)
@@ -1191,19 +1147,6 @@ private size_t parse_from(<%= @grammar.prefix %>context_t * context, size_t star
     }
 }
 
-public size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context)
-{
-    return parse_from(context, 0u);
-}
-
-<% @grammar.start_rules.each_with_index do |start_rule, i| %>
-
-public size_t <%= @grammar.prefix %>parse_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return parse_from(context, <%= i %>u);
-}
-<% end %>
-
 /**
  * Get the parse result value.
  *
@@ -1212,59 +1155,19 @@ public size_t <%= @grammar.prefix %>parse_<%= start_rule %>(<%= @grammar.prefix
  *
  * @return Parse result value.
  */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-public <%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
+public <%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
-{
-    return cast(<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> *)context.parse_result;
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-public <%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return cast(<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> *)context.parse_result;
-}
-<%   end %>
 <% else %>
 public <%= start_rule_type[1] %> <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context)
+<% end %>
 {
+<% if @grammar.ast %>
+    return context.parse_result;
+<% else %>
     return context.parse_result.v_<%= start_rule_type[0] %>;
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-public <%= start_rule_type(i)[1] %> <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context)
-{
-    return context.parse_result.v_<%= start_rule_type(i)[0] %>;
-}
 <% end %>
-<% end %>
-
-<% if @grammar.tree %>
-private void tree_delete(TreeNode * node)
-{
-    if (!node.is_token)
-    {
-        for (size_t i = 0u; i < node.n_fields; i++)
-        {
-            if (node.fields[i])
-            {
-                tree_delete(cast(TreeNode *)node.fields[i]);
-            }
-        }
-        GC.removeRange(node);
-        free(node);
-    }
 }
 
-void <%= @grammar.prefix %>tree_delete(<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * tree)
-{
-    tree_delete(cast(TreeNode *)tree);
-}
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-void <%= @grammar.prefix %>tree_delete_<%= start_rule %>(<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * tree)
-{
-    tree_delete(cast(TreeNode *)tree);
-}
-<%   end %>
-<% end %>
-
 /**
  * Get the current text input position.
  *

assets/parser.h.erb

@@ -58,7 +58,7 @@ typedef struct
 /** User header code blocks. */
 <%= @grammar.code_blocks.fetch("header", "") %>
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
 /** Parser values type. */
 typedef <%= @grammar.ptype %> <%= @grammar.prefix %>value_t;
 <% else %>
@@ -69,37 +69,18 @@ typedef union
     <%= typestring %> v_<%= name %>;
 <%   end %>
 } <%= @grammar.prefix %>value_t;
-
-/** Parser value constructor(s). */
-<%   @grammar.ptypes.each do |name, typestring| %>
-static inline <%= @grammar.prefix %>value_t <%= @grammar.prefix %>value<%= name == "default" ? "" : "_#{name}" %>(<%= typestring %> v)
-{
-    return (<%= @grammar.prefix %>value_t){.v_<%= name %> = v};
-}
 <% end %>
 
-/** Parser value accessor(s). */
+<% if @grammar.ast %>
-<%   @grammar.ptypes.each do |name, typestring| %>
+/** AST node types. @{ */
-static inline <%= typestring %> <%= @grammar.prefix %>value_get<%= name == "default" ? "" : "_#{name}" %>(<%= @grammar.prefix %>value_t const * pvalue)
+typedef struct <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>
 {
-    return pvalue->v_<%= name %>;
+    /* ASTNode fields must be present in the same order here. */
-}
-<%   end %>
-<% end %>
-
-<% if @grammar.tree %>
-/** Tree node types. @{ */
-typedef struct <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>
-{
-    <% # TreeNode fields must be present in the same order here. # %>
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    uint16_t n_fields;
-    uint8_t is_token;
-<%= @grammar.token_user_fields %>
     <%= @grammar.prefix %>token_t token;
     <%= @grammar.prefix %>value_t pvalue;
-} <%= @grammar.tree_prefix %>Token<%= @grammar.tree_suffix %>;
+} <%= @grammar.ast_prefix %>Token<%= @grammar.ast_suffix %>;
 
 <%   @parser.rule_sets.each do |name, rule_set| %>
 <%     next if name.start_with?("$") %>
@@ -110,14 +91,11 @@ struct <%= name %>;
 <%   @parser.rule_sets.each do |name, rule_set| %>
 <%     next if name.start_with?("$") %>
 <%     next if rule_set.optional? %>
-typedef struct <%= @grammar.tree_prefix %><%= name %><%= @grammar.tree_suffix %>
+typedef struct <%= @grammar.ast_prefix %><%= name %><%= @grammar.ast_suffix %>
 {
-    <% # TreeNode fields must be present in the same order here. # %>
     <%= @grammar.prefix %>position_t position;
     <%= @grammar.prefix %>position_t end_position;
-    uint16_t n_fields;
+<%     rule_set.ast_fields.each do |fields| %>
-    uint8_t is_token;
-<%     rule_set.tree_fields.each do |fields| %>
     union
     {
 <%       fields.each do |field_name, type| %>
@@ -125,7 +103,7 @@ typedef struct <%= @grammar.tree_prefix %><%= name %><%= @grammar.tree_suffix %>
 <%       end %>
     };
 <%     end %>
-} <%= @grammar.tree_prefix %><%= name %><%= @grammar.tree_suffix %>;
+} <%= @grammar.ast_prefix %><%= name %><%= @grammar.ast_suffix %>;
 
 <%   end %>
 /** @} */
@@ -178,8 +156,8 @@ typedef struct
     /* Parser context data. */
 
     /** Parse result value. */
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-    void * parse_result;
+    <%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> * parse_result;
 <% else %>
     <%= @grammar.prefix %>value_t parse_result;
 <% end %>
@@ -189,8 +167,6 @@ typedef struct
 
     /** User terminate code. */
     size_t user_terminate_code;
-
-<%= @grammar.context_user_fields %>
 } <%= @grammar.prefix %>context_t;
 
 /**************************************************************************
@@ -200,9 +176,7 @@ typedef struct
 /** Token names. */
 extern const char * <%= @grammar.prefix %>token_names[];
 
-<%= @grammar.prefix %>context_t * <%= @grammar.prefix %>context_new(uint8_t const * input, size_t input_length);
+void <%= @grammar.prefix %>context_init(<%= @grammar.prefix %>context_t * context, uint8_t const * input, size_t input_length);
-
-void <%= @grammar.prefix %>context_delete(<%= @grammar.prefix %>context_t * context);
 
 size_t <%= @grammar.prefix %>decode_code_point(uint8_t const * input, size_t input_length,
         <%= @grammar.prefix %>code_point_t * out_code_point, uint8_t * out_code_point_length);
@@ -210,27 +184,11 @@ size_t <%= @grammar.prefix %>decode_code_point(uint8_t const * input, size_t inp
 size_t <%= @grammar.prefix %>lex(<%= @grammar.prefix %>context_t * context, <%= @grammar.prefix %>token_info_t * out_token_info);
 
 size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context);
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-size_t <%= @grammar.prefix %>parse_<%= start_rule %>(<%= @grammar.prefix %>context_t * context);
-<%   end %>
 
-<% if @grammar.tree %>
+<% if @grammar.ast %>
-<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context);
+<%= @grammar.ast_prefix %><%= @grammar.start_rule %><%= @grammar.ast_suffix %> * <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context);
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context);
-<%   end %>
 <% else %>
 <%= start_rule_type[1] %> <%= @grammar.prefix %>result(<%= @grammar.prefix %>context_t * context);
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-<%= start_rule_type(i)[1] %> <%= @grammar.prefix %>result_<%= start_rule %>(<%= @grammar.prefix %>context_t * context);
-<%   end %>
-<% end %>
-
-<% if @grammar.tree %>
-void <%= @grammar.prefix %>tree_delete(<%= @grammar.tree_prefix %><%= @grammar.start_rules[0] %><%= @grammar.tree_suffix %> * tree);
-<%   @grammar.start_rules.each_with_index do |start_rule, i| %>
-void <%= @grammar.prefix %>tree_delete_<%= start_rule %>(<%= @grammar.tree_prefix %><%= start_rule %><%= @grammar.tree_suffix %> * tree);
-<%   end %>
 <% end %>
 
 <%= @grammar.prefix %>position_t <%= @grammar.prefix %>position(<%= @grammar.prefix %>context_t * context);

extra/vim/syntax/propane.vim

@@ -8,11 +8,7 @@ if exists("b:current_syntax")
 endif
 
 if !exists("b:propane_subtype")
-  if search('\<import\s\+\%(std\|core\)\.', 'nw') > 0
   let b:propane_subtype = "d"
-  else
-    let b:propane_subtype = "cpp"
-  endif
 endif
 
 exe "syn include @propaneTarget syntax/".b:propane_subtype.".vim"
@@ -24,7 +20,7 @@ syn match propaneOperator "->"
 syn match propaneFieldAlias ":[a-zA-Z0-9_]\+" contains=propaneFieldOperator
 syn match propaneFieldOperator ":" contained
 syn match propaneOperator "?"
-syn keyword propaneKeyword context_user_fields drop free_token_node lex_fn module noline on_token_node prefix ptype start token token_user_fields tokenid tree tree_prefix tree_suffix
+syn keyword propaneKeyword ast ast_prefix ast_suffix drop module prefix ptype start token tokenid
 
 syn region propaneRegex start="/" end="/" skip="\v\\\\|\\/"
 

lib/propane.rb

@@ -33,7 +33,7 @@ class Propane
 
     def run(input_file, output_file, log_file, options)
       begin
-        grammar = Grammar.new(File.read(input_file), input_file)
+        grammar = Grammar.new(File.read(input_file))
         generator = Generator.new(grammar, output_file, log_file, options)
         generator.generate
       rescue Error => e

lib/propane/generator.rb

@@ -13,13 +13,8 @@ class Propane
       @language =
         if output_file.end_with?(".d")
           "d"
-        elsif output_file.end_with?(".c")
-          "c"
-        elsif output_file =~ %r{\.(cc|cpp|cxx)$}
-          @cpp = true
-          "c"
         else
-          raise Error.new("Could not determine target language from output file name (#{output_file})")
+          "c"
         end
       @options = options
       process_grammar!
@@ -38,13 +33,7 @@ class Propane
           output_file = @output_file
         end
         erb = ERB.new(template, trim_mode: "<>")
-        result = erb.result(binding.clone).lines.each_with_index.map do |line, i|
+        result = erb.result(binding.clone)
-          if line == "#linereset\n"
-            %[#line #{i + 2} "#{output_file}"\n]
-          else
-            line
-          end
-        end.join
         File.open(output_file, "wb") do |fh|
           fh.write(result)
         end
@@ -82,15 +71,12 @@ class Propane
         end
         tokens_by_name[token.name] = token
       end
-      # Create real start rule(s).
+      # Check for user start rule.
-      real_start_rules = @grammar.start_rules.map do |start_rule|
+      unless @grammar.rules.find {|rule| rule.name == @grammar.start_rule}
-        unless @grammar.rules.find {|rule| rule.name == start_rule}
+        raise Error.new("Start rule `#{@grammar.start_rule}` not found")
-          raise Error.new("Start rule `#{start_rule}` not found")
       end
-        Rule.new("$#{start_rule}", [start_rule, "$EOF"], nil, nil, nil)
+      # Add "real" start rule.
-      end
+      @grammar.rules.unshift(Rule.new("$Start", [@grammar.start_rule, "$EOF"], nil, nil, nil))
-      # Add real start rules before user-given rules.
-      @grammar.rules = real_start_rules + @grammar.rules
       # Generate and add rules for optional components.
       generate_optional_component_rules!(tokens_by_name)
       # Build rule sets.
@@ -276,24 +262,6 @@ class Propane
           "context.user_terminate_code = (#{user_terminate_code}); return #{retval};"
         end
       end
-      code = code.gsub(/\$\{context\.(\w+)\}/) do |match|
-        fieldname = $1
-        case @language
-        when "c"
-          "context->#{fieldname}"
-        when "d"
-          "context.#{fieldname}"
-        end
-      end
-      code = code.gsub(/\$\{token\.(\w+)\}/) do |match|
-        fieldname = $1
-        case @language
-        when "c"
-          "token_tree_node->#{fieldname}"
-        when "d"
-          "token_tree_node.#{fieldname}"
-        end
-      end
       if parser
         code = code.gsub(/\$\$/) do |match|
           case @language
@@ -327,7 +295,7 @@ class Propane
         end
       else
         code = code.gsub(/\$\$/) do |match|
-          if @grammar.tree
+          if @grammar.ast
             case @language
             when "c"
               "out_token_info->pvalue"
@@ -360,21 +328,13 @@ class Propane
       code
     end
 
-    # Get the lex function to use.
-    #
-    # @return [String]
-    #   Lex function to use.
-    def lex_fn
-      @grammar.lex_fn || "#{@grammar.prefix}lex"
-    end
-
     # Get the parser value type for the start rule.
     #
     # @return [Array<String>]
     #   Start rule parser value type name and type string.
-    def start_rule_type(start_rule_index = 0)
+    def start_rule_type
       start_rule = @grammar.rules.find do |rule|
-        rule.name == @grammar.start_rules[start_rule_index]
+        rule.name == @grammar.start_rule
       end
       [start_rule.ptypename, @grammar.ptypes[start_rule.ptypename]]
     end

lib/propane/grammar.rb

@@ -5,27 +5,21 @@ class Propane
     # Reserve identifiers beginning with a double-underscore for internal use.
     IDENTIFIER_REGEX = /(?:[a-zA-Z]|_[a-zA-Z0-9])[a-zA-Z_0-9]*/
 
-    attr_reader :context_user_fields
+    attr_reader :ast
-    attr_reader :lex_fn
+    attr_reader :ast_prefix
-    attr_reader :tree
+    attr_reader :ast_suffix
-    attr_reader :tree_prefix
-    attr_reader :tree_suffix
-    attr_reader :free_token_node
     attr_reader :modulename
     attr_reader :patterns
-    attr_accessor :rules
+    attr_reader :rules
-    attr_reader :start_rules
+    attr_reader :start_rule
     attr_reader :tokens
     attr_reader :code_blocks
     attr_reader :ptypes
     attr_reader :prefix
-    attr_reader :on_token_node
-    attr_reader :token_user_fields
 
-    def initialize(input, filename)
+    def initialize(input)
-      @filename = filename
       @patterns = []
-      @start_rules = []
+      @start_rule = "Start"
       @tokens = []
       @rules = []
       @code_blocks = {}
@@ -35,15 +29,10 @@ class Propane
       @input = input.gsub("\r\n", "\n")
       @ptypes = {"default" => "void *"}
       @prefix = "p_"
-      @tree = false
+      @ast = false
-      @tree_prefix = ""
+      @ast_prefix = ""
-      @tree_suffix = ""
+      @ast_suffix = ""
-      @free_token_node = ""
-      @context_user_fields = nil
-      @on_token_node = ""
-      @token_user_fields = nil
       parse_grammar!
-      @start_rules << "Start" if @start_rules.empty?
     end
 
     def ptype
@@ -70,15 +59,10 @@ class Propane
       if parse_white_space!
       elsif parse_comment_line!
       elsif @modeline.nil? && parse_mode_label!
-      elsif parse_context_user_fields_statement!
+      elsif parse_ast_statement!
-      elsif parse_lex_fn!
+      elsif parse_ast_prefix_statement!
-      elsif parse_tree_statement!
+      elsif parse_ast_suffix_statement!
-      elsif parse_tree_prefix_statement!
-      elsif parse_tree_suffix_statement!
-      elsif parse_free_token_node_statement!
       elsif parse_module_statement!
-      elsif parse_on_token_node_statement!
-      elsif parse_token_user_fields_statement!
       elsif parse_ptype_statement!
       elsif parse_pattern_statement!
       elsif parse_start_statement!
@@ -88,7 +72,6 @@ class Propane
       elsif parse_rule_statement!
       elsif parse_code_block_statement!
       elsif parse_prefix_statement!
-      elsif parse_noline_statement!
       else
         if @input.size > 25
           @input = @input.slice(0..20) + "..."
@@ -111,37 +94,21 @@ class Propane
       consume!(/#.*\n/)
     end
 
-    def parse_context_user_fields_statement!
+    def parse_ast_statement!
-      if md = consume!(/context_user_fields\b\s*/)
+      if consume!(/ast\s*;/)
-        unless code = parse_code_block!
+        @ast = true
-          raise Error.new("Line #{@line_number}: expected code block")
-        end
-        @context_user_fields ||= ""
-        @context_user_fields += code
       end
     end
 
-    def parse_lex_fn!
+    def parse_ast_prefix_statement!
-      if md = consume!(/lex_fn\b\s*(\w+)\s*;/)
+      if md = consume!(/ast_prefix\s+(\w+)\s*;/)
-        @lex_fn = md[1]
+        @ast_prefix = md[1]
       end
     end
 
-    def parse_tree_statement!
+    def parse_ast_suffix_statement!
-      if consume!(/tree\s*;/)
+      if md = consume!(/ast_suffix\s+(\w+)\s*;/)
-        @tree = true
+        @ast_suffix = md[1]
-      end
-    end
-
-    def parse_tree_prefix_statement!
-      if md = consume!(/tree_prefix\s+(\w+)\s*;/)
-        @tree_prefix = md[1]
-      end
-    end
-
-    def parse_tree_suffix_statement!
-      if md = consume!(/tree_suffix\s+(\w+)\s*;/)
-        @tree_suffix = md[1]
       end
     end
 
@@ -155,40 +122,12 @@ class Propane
       end
     end
 
-    def parse_on_token_node_statement!
-      if md = consume!(/on_token_node\b\s*/)
-        unless code = parse_code_block!
-          raise Error.new("Line #{@line_number}: expected code block")
-        end
-        @on_token_node += code
-      end
-    end
-
-    def parse_token_user_fields_statement!
-      if md = consume!(/token_user_fields\b\s*/)
-        unless code = parse_code_block!
-          raise Error.new("Line #{@line_number}: expected code block")
-        end
-        @token_user_fields ||= ""
-        @token_user_fields += code
-      end
-    end
-
-    def parse_free_token_node_statement!
-      if md = consume!(/free_token_node\b\s*/)
-        unless code = parse_code_block!
-          raise Error.new("Line #{@line_number}: expected code block")
-        end
-        @free_token_node += code
-      end
-    end
-
     def parse_ptype_statement!
       if consume!(/ptype\s+/)
         name = "default"
         if md = consume!(/(#{IDENTIFIER_REGEX})\s*=\s*/)
-          if @tree
+          if @ast
-            raise Error.new("Multiple ptypes are unsupported in tree mode")
+            raise Error.new("Multiple ptypes are unsupported in AST mode")
           end
           name = md[1]
         end
@@ -202,8 +141,8 @@ class Propane
         md = consume!(/(#{IDENTIFIER_REGEX})\s*/, "expected token name")
         name = md[1]
         if md = consume!(/\((#{IDENTIFIER_REGEX})\)\s*/)
-          if @tree
+          if @ast
-            raise Error.new("Multiple ptypes are unsupported in tree mode")
+            raise Error.new("Multiple ptypes are unsupported in AST mode")
           end
           ptypename = md[1]
         end
@@ -226,8 +165,8 @@ class Propane
         md = consume!(/(#{IDENTIFIER_REGEX})\s*/, "expected token name")
         name = md[1]
         if md = consume!(/\((#{IDENTIFIER_REGEX})\)\s*/)
-          if @tree
+          if @ast
-            raise Error.new("Multiple ptypes are unsupported in tree mode")
+            raise Error.new("Multiple ptypes are unsupported in AST mode")
           end
           ptypename = md[1]
         end
@@ -246,10 +185,8 @@ class Propane
           raise Error.new("Line #{@line_number}: expected pattern to follow `drop'")
         end
         consume!(/\s+/)
-        unless code = parse_code_block!
+        consume!(/;/, "expected `;'")
-          consume!(/;/, "expected `;' or code block")
+        @patterns << Pattern.new(pattern: pattern, line_number: @line_number, modes: get_modes_from_modeline)
-        end
-        @patterns << Pattern.new(pattern: pattern, line_number: @line_number, code: code, modes: get_modes_from_modeline)
         @modeline = nil
         true
       end
@@ -258,12 +195,12 @@ class Propane
     def parse_rule_statement!
       if md = consume!(/(#{IDENTIFIER_REGEX})\s*(?:\((#{IDENTIFIER_REGEX})\))?\s*->\s*/)
         rule_name, ptypename = *md[1, 2]
-        if @tree && ptypename
+        if @ast && ptypename
-          raise Error.new("Multiple ptypes are unsupported in tree mode")
+          raise Error.new("Multiple ptypes are unsupported in AST mode")
         end
         md = consume!(/((?:#{IDENTIFIER_REGEX}\??(?::#{IDENTIFIER_REGEX})?\s*)*)\s*/, "expected rule component list")
         components = md[1].strip.split(/\s+/)
-        if @tree
+        if @ast
           consume!(/;/, "expected `;'")
         else
           unless code = parse_code_block!
@@ -280,8 +217,8 @@ class Propane
       if pattern = parse_pattern!
         consume!(/\s+/)
         if md = consume!(/\((#{IDENTIFIER_REGEX})\)\s*/)
-          if @tree
+          if @ast
-            raise Error.new("Multiple ptypes are unsupported in tree mode")
+            raise Error.new("Multiple ptypes are unsupported in AST mode")
           end
           ptypename = md[1]
         end
@@ -295,25 +232,16 @@ class Propane
     end
 
     def parse_start_statement!
-      if md = consume!(/start\s+([\w\s]*);/)
+      if md = consume!(/start\s+(\w+)\s*;/)
-        start_rules = md[1].split(/\s+/).map(&:strip)
+        @start_rule = md[1]
-        start_rules.each do |start_rule|
-          @start_rules << start_rule unless @start_rules.include?(start_rule)
-        end
       end
     end
 
     def parse_code_block_statement!
       if md = consume!(/<<([a-z]*)(.*?)>>\n/m)
         name, code = md[1..2]
-        code = code.chomp
+        code.sub!(/\A\n/, "")
-        unless @noline
+        code += "\n" unless code.end_with?("\n")
-          if code.start_with?("\n")
-            code = %[#line #{@line_number + 1} "#{@filename}"#{code}\n#linereset\n]
-          else
-            code = %[#line #{@line_number} "#{@filename}"\n#{code}\n#linereset\n]
-          end
-        end
         if @code_blocks[name]
           @code_blocks[name] += code
         else
@@ -331,13 +259,6 @@ class Propane
       end
     end
 
-    def parse_noline_statement!
-      if md = consume!(/noline\s*;/)
-        @noline = true
-        true
-      end
-    end
-
     def parse_pattern!
       if md = consume!(%r{/})
         pattern = ""
@@ -351,8 +272,6 @@ class Propane
             end
           elsif md = consume!(%r{(.)})
             pattern += md[1]
-          elsif @input == "" || @input.start_with?("\n")
-            raise Error.new("Line #{@line_number}: Unterminated pattern; expected `/`")
           end
         end
         pattern
@@ -361,14 +280,9 @@ class Propane
 
     def parse_code_block!
       if md = consume!(/<<(.*?)>>\n/m)
-        code = md[1].chomp
+        code = md[1]
-        unless @noline
+        code.sub!(/\A\n/, "")
-          if code.start_with?("\n")
+        code += "\n" unless code.end_with?("\n")
-            code = %[#line #{@line_number + 1} "#{@filename}"#{code}\n#linereset\n]
-          else
-            code = %[#line #{@line_number} "#{@filename}"\n#{code}\n#linereset\n]
-          end
-        end
         code
       end
     end

lib/propane/parser.rb

@@ -16,20 +16,11 @@ class Propane
       @warnings = Set.new
       @errors = Set.new
       @options = options
-      start_items = grammar.rules[0...grammar.start_rules.length].map do |start_rule|
+      start_item = Item.new(grammar.rules.first, 0)
-        Item.new(start_rule, 0)
+      eval_item_sets = Set[ItemSet.new([start_item])]
-      end
-      start_item_sets = start_items.map {|item| ItemSet.new([item])}
-      eval_item_sets = Set[*start_item_sets]
 
       while eval_item_sets.size > 0
-        item_set =
+        item_set = eval_item_sets.first
-          if start_item_sets.size > 0
-            # Ensure we evaluate start_item_sets first in order
-            start_item_sets.slice!(0)
-          else
-            eval_item_sets.first
-          end
         eval_item_sets.delete(item_set)
         unless @item_sets_set.include?(item_set)
           item_set.id = @item_sets.size

lib/propane/rule.rb

@@ -36,7 +36,7 @@ class Propane
 
     # @return [Array<Integer>]
     #   Map this rule's components to their positions in the parent RuleSet's
-    #   node field pointer array. This is used for tree construction.
+    #   node field pointer array. This is used for AST construction.
     attr_accessor :rule_set_node_field_index_map
 
     # Construct a Rule.

lib/propane/rule_set.rb

@@ -4,8 +4,8 @@ class Propane
   class RuleSet
 
     # @return [Array<Hash>]
-    #   tree fields.
+    #   AST fields.
-    attr_reader :tree_fields
+    attr_reader :ast_fields
 
     # @return [Integer]
     #   ID of the RuleSet.
@@ -100,28 +100,28 @@ class Propane
 
     # Finalize a RuleSet after adding all Rules to it.
     def finalize(grammar)
-      if grammar.tree
+      if grammar.ast
-        build_tree_fields(grammar)
+        build_ast_fields(grammar)
       end
     end
 
     private
 
-    # Build the set of tree fields for this RuleSet.
+    # Build the set of AST fields for this RuleSet.
     #
     # This is an Array of Hashes. Each entry in the Array corresponds to a
-    # field location in the tree node. The entry is a Hash. It could have one or
+    # field location in the AST node. The entry is a Hash. It could have one or
     # two keys. It will always have the field name with a positional suffix as
     # a key. It may also have the field name without the positional suffix if
     # that field only exists in one position across all Rules in the RuleSet.
     #
     # @return [void]
-    def build_tree_fields(grammar)
+    def build_ast_fields(grammar)
-      field_tree_node_indexes = {}
+      field_ast_node_indexes = {}
       field_indexes_across_all_rules = {}
-      # Stores the index into @tree_fields by field alias name.
+      # Stores the index into @ast_fields by field alias name.
       field_aliases = {}
-      @tree_fields = []
+      @ast_fields = []
       @rules.each do |rule|
         rule.components.each_with_index do |component, i|
           if component.is_a?(RuleSet) && component.optional?
@@ -132,25 +132,25 @@ class Propane
           else
             node_name = component.name
           end
-          struct_name = "#{grammar.tree_prefix}#{node_name}#{grammar.tree_suffix}"
+          struct_name = "#{grammar.ast_prefix}#{node_name}#{grammar.ast_suffix}"
           field_name = "p#{node_name}#{i + 1}"
-          unless field_tree_node_indexes[field_name]
+          unless field_ast_node_indexes[field_name]
-            field_tree_node_indexes[field_name] = @tree_fields.size
+            field_ast_node_indexes[field_name] = @ast_fields.size
-            @tree_fields << {field_name => struct_name}
+            @ast_fields << {field_name => struct_name}
           end
           rule.aliases.each do |alias_name, index|
             if index == i
-              alias_tree_fields_index = field_tree_node_indexes[field_name]
+              alias_ast_fields_index = field_ast_node_indexes[field_name]
-              if field_aliases[alias_name] && field_aliases[alias_name] != alias_tree_fields_index
+              if field_aliases[alias_name] && field_aliases[alias_name] != alias_ast_fields_index
-                raise Error.new("Error: conflicting tree node field positions for alias `#{alias_name}` in rule #{rule.name} defined on line #{rule.line_number}")
+                raise Error.new("Error: conflicting AST node field positions for alias `#{alias_name}` in rule #{rule.name} defined on line #{rule.line_number}")
               end
-              field_aliases[alias_name] = alias_tree_fields_index
+              field_aliases[alias_name] = alias_ast_fields_index
-              @tree_fields[alias_tree_fields_index][alias_name] = @tree_fields[alias_tree_fields_index].first[1]
+              @ast_fields[alias_ast_fields_index][alias_name] = @ast_fields[alias_ast_fields_index].first[1]
             end
           end
           field_indexes_across_all_rules[node_name] ||= Set.new
-          field_indexes_across_all_rules[node_name] << field_tree_node_indexes[field_name]
+          field_indexes_across_all_rules[node_name] << field_ast_node_indexes[field_name]
-          rule.rule_set_node_field_index_map[i] = field_tree_node_indexes[field_name]
+          rule.rule_set_node_field_index_map[i] = field_ast_node_indexes[field_name]
         end
       end
       field_indexes_across_all_rules.each do |node_name, indexes_across_all_rules|
@@ -158,8 +158,8 @@ class Propane
           # If this field was only seen in one position across all rules,
           # then add an alias to the positional field name that does not
           # include the position.
-          @tree_fields[indexes_across_all_rules.first]["p#{node_name}"] =
+          @ast_fields[indexes_across_all_rules.first]["p#{node_name}"] =
-            "#{grammar.tree_prefix}#{node_name}#{grammar.tree_suffix}"
+            "#{grammar.ast_prefix}#{node_name}#{grammar.ast_suffix}"
         end
       end
     end

lib/propane/version.rb

@@ -1,3 +1,3 @@
 class Propane
-  VERSION = "4.4.0"
+  VERSION = "2.3.0"
 end

spec/ast_node_memory_remains.c.propane

@@ -1,5 +1,5 @@
-tree;
+ast;
-tree_prefix P;
+ast_prefix P;
 
 <<header
 #include <stdio.h>

spec/ast_node_memory_remains.d.propane

@@ -1,5 +1,5 @@
-tree;
+ast;
-tree_prefix P;
+ast_prefix P;
 
 <<
 import std.bigint;

spec/propane/grammar_spec.rb

@@ -28,7 +28,7 @@ B -> <<
   b = 0;
 >>
 EOF
-      grammar = Grammar.new(input, "test.propane")
+      grammar = Grammar.new(input)
       expect(grammar.modulename).to eq "a.b"
       expect(grammar.ptype).to eq "XYZ  *"
       expect(grammar.ptypes).to eq("default" => "XYZ  *")
@@ -62,7 +62,7 @@ EOF
       expect(o).to_not be_nil
       expect(o.pattern).to eq "token_with_code"
       expect(o.line_number).to eq 11
-      expect(o.code).to eq %[#line 12 "test.propane"\nCode for the token\n#linereset\n]
+      expect(o.code).to eq "Code for the token\n"
 
       o = grammar.tokens.find {|token| token.name == "token_with_no_pattern"}
       expect(o).to_not be_nil
@@ -83,7 +83,7 @@ EOF
       expect(o.name).to eq "A"
       expect(o.components).to eq %w[B]
       expect(o.line_number).to eq 19
-      expect(o.code).to eq %[#line 20 "test.propane"\n  a = 42;\n#linereset\n]
+      expect(o.code).to eq "  a = 42;\n"
 
       o = grammar.rules[1]
       expect(o.name).to eq "B"
@@ -95,7 +95,7 @@ EOF
       expect(o.name).to eq "B"
       expect(o.components).to eq []
       expect(o.line_number).to eq 23
-      expect(o.code).to eq %[#line 24 "test.propane"\n  b = 0;\n#linereset\n]
+      expect(o.code).to eq "  b = 0;\n"
     end
 
     it "parses code segments with semicolons" do
@@ -113,7 +113,7 @@ tokenid token_with_no_pattern;
 
 prefix myparser_;
 EOF
-      grammar = Grammar.new(input, "test.propane")
+      grammar = Grammar.new(input)
       expect(grammar.prefix).to eq "myparser_"
 
       o = grammar.tokens.find {|token| token.name == "code1"}
@@ -122,7 +122,7 @@ EOF
 
       o = grammar.patterns.find {|pattern| pattern.token == o}
       expect(o).to_not be_nil
-      expect(o.code).to eq %[#line 2 "test.propane"\n  a = b;\n  return c;\n#linereset\n]
+      expect(o.code).to eq "  a = b;\n  return c;\n"
 
       o = grammar.tokens.find {|token| token.name == "code2"}
       expect(o).to_not be_nil
@@ -130,42 +130,7 @@ EOF
 
       o = grammar.patterns.find {|pattern| pattern.token == o}
       expect(o).to_not be_nil
-      expect(o.code).to eq %[#line 7 "test.propane"\n  writeln("Hello there");\n#linereset\n]
+      expect(o.code).to eq %[  writeln("Hello there");\n]
-    end
-
-    it "does not emit #line directives with noline statement" do
-      input = <<EOF
-noline;
-
-token code1 <<
-  a = b;
-  return c;
->>
-
-token code2 <<
-  writeln("Hello there");
->>
-
-tokenid token_with_no_pattern;
-
-prefix myparser_;
-EOF
-      grammar = Grammar.new(input, "test.propane")
-      expect(grammar.prefix).to eq "myparser_"
-
-      o = grammar.tokens.find {|token| token.name == "code1"}
-      expect(o).to_not be_nil
-
-      o = grammar.patterns.find {|pattern| pattern.token == o}
-      expect(o).to_not be_nil
-      expect(o.code).to eq %[\n  a = b;\n  return c;]
-
-      o = grammar.tokens.find {|token| token.name == "code2"}
-      expect(o).to_not be_nil
-
-      o = grammar.patterns.find {|pattern| pattern.token == o}
-      expect(o).to_not be_nil
-      expect(o.code).to eq %[\n  writeln("Hello there");]
     end
 
     it "supports mode labels" do
@@ -179,7 +144,7 @@ m2: /bar/ <<
 drop /q/;
 m3: drop /r/;
 EOF
-      grammar = Grammar.new(input, "test.propane")
+      grammar = Grammar.new(input)
 
       o = grammar.tokens.find {|token| token.name == "a"}
       expect(o).to_not be_nil
@@ -232,7 +197,7 @@ tokenid int(integer);
 Start (node) -> R;
 R -> abc int;
 EOF
-      grammar = Grammar.new(input, "test.propane")
+      grammar = Grammar.new(input)
 
       o = grammar.tokens.find {|token| token.name == "abc"}
       expect(o).to_not be_nil

spec/propane/lexer/dfa_spec.rb

@@ -51,7 +51,7 @@ class TestLexer
 end
 
 def run(grammar, input)
-  grammar = Propane::Grammar.new(grammar, "test.propane")
+  grammar = Propane::Grammar.new(grammar)
   token_dfa = Propane::Lexer::DFA.new(grammar.patterns)
   test_lexer = TestLexer.new(token_dfa)
   test_lexer.lex(input)

spec/propane_spec.rb

@@ -14,7 +14,6 @@ describe Propane do
   end
 
   def run_propane(options = {})
-    options[:language] ||= "d"
     @statics[:build_test_id] ||= 0
     @statics[:build_test_id] += 1
     if ENV["dist_specs"]
@@ -79,9 +78,9 @@ EOF
     end
     case options[:language]
     when "c"
-      command = [*%w[gcc -g -Wall -o spec/run/testparser -Ispec -Ispec/run], *parsers, *test_files, "spec/testutils.c", "-lm"]
+      command = [*%w[gcc -Wall -o spec/run/testparser -Ispec -Ispec/run], *parsers, *test_files, "spec/testutils.c", "-lm"]
     when "cpp"
-      command = [*%w[g++ -g -x c++ -Wall -o spec/run/testparser -Ispec -Ispec/run], *parsers, *test_files, "spec/testutils.c", "-lm"]
+      command = [*%w[g++ -x c++ -Wall -o spec/run/testparser -Ispec -Ispec/run], *parsers, *test_files, "spec/testutils.c", "-lm"]
     when "d"
       command = [*%w[ldc2 -g --unittest -of spec/run/testparser -Ispec], *parsers, *test_files, "spec/testutils.d"]
     end
@@ -89,22 +88,12 @@ EOF
     expect(result).to be_truthy
   end
 
-  def run_test(options)
+  def run_test
     stdout, stderr, status = Open3.capture3("spec/run/testparser")
     File.binwrite("spec/run/.stderr", stderr)
     File.binwrite("spec/run/.stdout", stdout)
     stderr.sub!(/^.*modules passed unittests\n/, "")
-    results = Results.new(stdout, stderr, status)
+    Results.new(stdout, stderr, status)
-    stdout, stderr, status = Open3.capture3("valgrind --leak-check=full --show-leak-kinds=all --track-origins=yes --verbose spec/run/testparser")
-    vgout = stdout + stderr
-    File.binwrite("spec/run/.vgout", vgout)
-    vgout.scan(/(?:definitely|indirectly) lost: (\d+) bytes/) do |match|
-      bytes = $1.to_i
-      if bytes > 0
-        raise "Valgrind detected memory leak"
-      end
-    end
-    results
   end
 
   def lines(str)
@@ -244,20 +233,20 @@ EOF
     expect(results.status).to_not eq 0
   end
 
-  it "errors when an alias is in different positions for different rules in a rule set when tree mode is enabled" do
+  it "errors when an alias is in different positions for different rules in a rule set when AST mode is enabled" do
     write_grammar <<EOF
-tree;
+ast;
 token a;
 token b;
 Start -> a:foo b;
 Start -> b b:foo;
 EOF
     results = run_propane(extra_args: %w[-w], capture: true)
-    expect(results.stderr).to match %r{Error: conflicting tree node field positions for alias `foo`}
+    expect(results.stderr).to match %r{Error: conflicting AST node field positions for alias `foo`}
     expect(results.status).to_not eq 0
   end
 
-  it "does not error when an alias is in different positions for different rules in a rule set when tree mode is not enabled" do
+  it "does not error when an alias is in different positions for different rules in a rule set when AST mode is not enabled" do
     write_grammar <<EOF
 token a;
 token b;
@@ -297,7 +286,7 @@ Foo -> plus <<>>
 EOF
         run_propane(language: language)
         compile("spec/test_lexer.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -335,7 +324,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_lexer_unknown_character.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -429,7 +418,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_basic_math_grammar.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -455,7 +444,7 @@ R2 -> a b;
 EOF
         run_propane(language: language)
         compile("spec/test_parser_identical_rules_lookahead.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
       end
 
@@ -470,7 +459,7 @@ R1 -> b;
 EOF
         run_propane(language: language)
         compile("spec/test_parser_rule_from_multiple_states.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
       end
 
@@ -505,7 +494,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_user_code.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "abc!",
@@ -541,7 +530,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_pattern.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "def!",
@@ -583,7 +572,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_return_token_from_pattern.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "def!",
@@ -641,7 +630,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_lexer_modes.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "begin string mode",
@@ -699,7 +688,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_lexer_multiple_modes.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "ident: d",
@@ -736,7 +725,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_parser_rule_user_code.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "A!",
@@ -755,7 +744,7 @@ As -> As a << $$ = $1 + 1u; >>
 EOF
         run_propane(language: language)
         compile("spec/test_parsing_lists.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         expect(results.stderr).to eq ""
       end
@@ -809,7 +798,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_lexer_match_text.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
           "Matched token is identifier_123",
@@ -842,7 +831,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_lexer_result_value.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -857,7 +846,7 @@ Start -> a num;
 EOF
         run_propane(language: language)
         compile("spec/test_error_positions.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -886,7 +875,7 @@ Start -> b c b;
 EOF
         run_propane(name: "myp2", language: language)
         compile("spec/test_multiple_parsers.#{language}", parsers: %w[myp1 myp2], language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -905,7 +894,7 @@ Any -> c;
 EOF
         run_propane(language: language)
         compile("spec/test_user_terminate_lexer.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -923,7 +912,7 @@ Any -> ;
 EOF
         run_propane(language: language)
         compile("spec/test_user_terminate.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -967,7 +956,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_match_backslashes.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
@@ -995,9 +984,9 @@ EOF
         run_propane(language: language)
       end
 
-      it "generates a tree" do
+      it "generates an AST" do
         write_grammar <<EOF
-tree;
+ast;
 
 ptype int;
 
@@ -1031,17 +1020,17 @@ One -> one;
 Two -> two;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree.#{language}", language: language)
+        compile("spec/test_ast.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "supports tree node prefix and suffix" do
+      it "supports AST node prefix and suffix" do
         write_grammar <<EOF
-tree;
+ast;
-tree_prefix P ;
+ast_prefix P ;
-tree_suffix  S;
+ast_suffix  S;
 
 ptype int;
 
@@ -1075,8 +1064,8 @@ One -> one;
 Two -> two;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree_ps.#{language}", language: language)
+        compile("spec/test_ast_ps.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
@@ -1091,15 +1080,15 @@ EOF
         compile("spec/test_start_rule.#{language}", language: language)
       end
 
-      it "allows specifying a different start rule with tree generation" do
+      it "allows specifying a different start rule with AST generation" do
         write_grammar <<EOF
-tree;
+ast;
 token hi;
 start Top;
 Top -> hi;
 EOF
         run_propane(language: language)
-        compile("spec/test_start_rule_tree.#{language}", language: language)
+        compile("spec/test_start_rule_ast.#{language}", language: language)
       end
 
       it "allows marking a rule component as optional" do
@@ -1150,7 +1139,7 @@ EOF
         end
         run_propane(language: language)
         compile("spec/test_optional_rule_component.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
         verify_lines(results.stdout, [
@@ -1166,10 +1155,10 @@ EOF
         ])
       end
 
-      it "allows marking a rule component as optional in tree generation mode" do
+      it "allows marking a rule component as optional in AST generation mode" do
         if language == "d"
           write_grammar <<EOF
-tree;
+ast;
 
 <<
 import std.stdio;
@@ -1185,7 +1174,7 @@ R -> d c;
 EOF
         else
           write_grammar <<EOF
-tree;
+ast;
 
 <<
 #include <stdio.h>
@@ -1201,16 +1190,16 @@ R -> d c;
 EOF
         end
         run_propane(language: language)
-        compile("spec/test_optional_rule_component_tree.#{language}", language: language)
+        compile("spec/test_optional_rule_component_ast.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "allows naming an optional rule component in tree generation mode" do
+      it "allows naming an optional rule component in AST generation mode" do
         if language == "d"
           write_grammar <<EOF
-tree;
+ast;
 
 <<
 import std.stdio;
@@ -1226,7 +1215,7 @@ R -> d c;
 EOF
         else
           write_grammar <<EOF
-tree;
+ast;
 
 <<
 #include <stdio.h>
@@ -1242,15 +1231,15 @@ R -> d c;
 EOF
         end
         run_propane(language: language)
-        compile("spec/test_named_optional_rule_component_tree.#{language}", language: language)
+        compile("spec/test_named_optional_rule_component_ast.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "stores token and rule positions in tree nodes" do
+      it "stores token and rule positions in AST nodes" do
         write_grammar <<EOF
-tree;
+ast;
 
 token a;
 token bb;
@@ -1262,15 +1251,15 @@ T -> bb;
 T -> c;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree_token_positions.#{language}", language: language)
+        compile("spec/test_ast_token_positions.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
       it "stores invalid positions for empty rule matches" do
         write_grammar <<EOF
-tree;
+ast;
 
 token a;
 token bb;
@@ -1282,15 +1271,15 @@ T -> a A;
 A -> bb? c?;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree_invalid_positions.#{language}", language: language)
+        compile("spec/test_ast_invalid_positions.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "allows specifying field aliases in tree mode" do
+      it "allows specifying field aliases in AST mode" do
         write_grammar <<EOF
-tree;
+ast;
 
 token a;
 token b;
@@ -1302,15 +1291,15 @@ T -> b;
 T -> c;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree_field_aliases.#{language}", language: language)
+        compile("spec/test_ast_field_aliases.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "aliases the correct field when multiple rules are in a rule set in tree mode" do
+      it "aliases the correct field when multiple rules are in a rule set in AST mode" do
         write_grammar <<EOF
-tree;
+ast;
 
 token a;
 token b;
@@ -1325,13 +1314,13 @@ T -> b;
 T -> c;
 EOF
         run_propane(language: language)
-        compile("spec/test_tree_field_aliases.#{language}", language: language)
+        compile("spec/test_ast_field_aliases.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end
 
-      it "allows specifying field aliases when tree mode is not enabled" do
+      it "allows specifying field aliases when AST mode is not enabled" do
         if language == "d"
           write_grammar <<EOF
 <<
@@ -1353,7 +1342,7 @@ EOF
 #include <stdio.h>
 #include <string.h>
 >>
-ptype char *;
+ptype char const *;
 token id /[a-zA-Z_][a-zA-Z0-9_]*/ <<
   char * s = (char *)malloc(match_length + 1);
   strncpy(s, (char const *)match, match_length);
@@ -1364,20 +1353,18 @@ drop /\\s+/;
 Start -> id:first id:second <<
   printf("first is %s\\n", ${first});
   printf("second is %s\\n", ${second});
-  free(${first});
-  free(${second});
 >>
 EOF
         end
         run_propane(language: language)
         compile("spec/test_field_aliases.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
         expect(results.stdout).to match /first is foo1.*second is bar2/m
       end
 
-      it "aliases the correct field when multiple rules are in a rule set when tree mode is not enabled" do
+      it "aliases the correct field when multiple rules are in a rule set when AST mode is not enabled" do
         if language == "d"
           write_grammar <<EOF
 <<
@@ -1402,7 +1389,7 @@ EOF
 #include <stdio.h>
 #include <string.h>
 >>
-ptype char *;
+ptype char const *;
 token id /[a-zA-Z_][a-zA-Z0-9_]*/ <<
   char * s = (char *)malloc(match_length + 1);
   strncpy(s, (char const *)match, match_length);
@@ -1415,402 +1402,24 @@ Start -> Foo;
 Start -> id:first id:second <<
   printf("first is %s\\n", ${first});
   printf("second is %s\\n", ${second});
-  free(${first});
-  free(${second});
 >>
 Foo -> ;
 EOF
         end
         run_propane(language: language)
         compile("spec/test_field_aliases.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
         expect(results.stdout).to match /first is foo1.*second is bar2/m
       end
 
-      # D garbage collector was freeing memory for nodes when it should not
+      it "does not free memory allocated for AST nodes" do
-      # have been. This was due to pointers being in the TreeNode that was
-      # allocated by C malloc() function instead of allocated using D.
-      it "does not free memory allocated for tree nodes" do
         ext = language == "cpp" ? "c" : language
-        write_grammar(File.read("spec/tree_node_memory_remains.#{ext}.propane"))
+        write_grammar(File.read("spec/ast_node_memory_remains.#{ext}.propane"))
         run_propane(language: language)
-        compile("spec/test_tree_node_memory_remains.#{language}", language: language)
+        compile("spec/test_ast_node_memory_remains.#{language}", language: language)
-        results = run_test(language: language)
+        results = run_test
-        expect(results.stderr).to eq ""
-        expect(results.status).to eq 0
-      end
-
-      it "allows multiple starting rules" do
-    write_grammar <<EOF
-ptype int;
-token a << $$ = 1; >>
-token b << $$ = 2; >>
-token c << $$ = 3; >>
-Start -> a b R;
-Start -> Bs:bs << $$ = $1; >>
-R -> c:c << $$ = $1; >>
-Bs -> << $$ = 0; >>
-Bs -> b:b Bs:bs << $$ = $1 + $2; >>
-start Start R Bs;
-EOF
-        run_propane(language: language)
-        compile("spec/test_starting_rules.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.stderr).to eq ""
-        expect(results.status).to eq 0
-      end
-
-      it "allows multiple starting rules in tree mode" do
-    write_grammar <<EOF
-tree;
-ptype int;
-token a << $$ = 1; >>
-token b << $$ = 2; >>
-token c << $$ = 3; >>
-Start -> a b R;
-Start -> Bs:bs;
-R -> c:c;
-Bs -> ;
-Bs -> b:b Bs:bs;
-start Start R Bs;
-EOF
-        run_propane(language: language)
-        compile("spec/test_starting_rules_tree.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.stderr).to eq ""
-        expect(results.status).to eq 0
-      end
-
-      if %w[c cpp].include?(language)
-        it "allows a user function to free token node memory in tree mode" do
-          write_grammar <<EOF
-tree;
-free_token_node <<
-    free(${token.pvalue});
->>
-ptype int *;
-token a <<
-  $$ = (int *)malloc(sizeof(int));
-  *$$ = 1;
->>
-token b <<
-  $$ = (int *)malloc(sizeof(int));
-  *$$ = 2;
->>
-Start -> a:a b:b;
-EOF
-          run_propane(language: language)
-          compile("spec/test_tree_delete_token_node_memory.#{language}", language: language)
-          results = run_test(language: language)
-          expect(results.stderr).to eq ""
-          expect(results.status).to eq 0
-        end
-      end
-
-      it "executes code blocks associated with drop statements" do
-        if language == "d"
-          write_grammar <<EOF
-<<
-import std.stdio;
->>
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-  stderr.write("comment: ", match);
->>
-token a;
-Start -> a;
-EOF
-        else
-          write_grammar <<EOF
-<<
-#include <stdio.h>
-#include <string.h>
->>
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-  fprintf(stderr, "comment: %.*s", (int)match_length, match);
->>
-token a;
-Start -> a;
-EOF
-        end
-        run_propane(language: language)
-        compile("spec/test_drop_code_block.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.stderr).to match %r{comment: # comment 1\n.*comment: #    comment 2}m
-        expect(results.status).to eq 0
-      end
-
-      it "allows user-defined context fields" do
-        if language == "d"
-          write_grammar <<EOF
-context_user_fields <<
-    string comments;
-    uint acount;
->>
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-    ${context.comments} ~= match;
->>
-token a <<
-    ${context.acount}++;
->>
-Start -> As;
-As -> ;
-As -> a As;
-EOF
-        else
-          write_grammar <<EOF
-<<
-#include <string.h>
-#include <stdlib.h>
->>
-context_user_fields <<
-    char * comments;
-    unsigned int acount;
->>
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-    size_t cur_len = 0u;
-    if (${context.comments} != NULL)
-        cur_len = strlen(${context.comments});
-    char * commentsnew = (char *)malloc(cur_len + match_length + 1);
-    if (${context.comments} != NULL)
-        memcpy(commentsnew, ${context.comments}, cur_len);
-    memcpy(&commentsnew[cur_len], match, match_length);
-    commentsnew[cur_len + match_length] = '\\0';
-    if (${context.comments} != NULL)
-    {
-        free(${context.comments});
-    }
-    ${context.comments} = commentsnew;
->>
-token a <<
-    ${context.acount}++;
->>
-Start -> As;
-As -> ;
-As -> a As;
-EOF
-        end
-        run_propane(language: language)
-        compile("spec/test_user_context_fields.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.stderr).to include %r{comments: # comment 1\n#    comment 2}
-        expect(results.stderr).to include %r{acount: 11\n}
-        expect(results.status).to eq 0
-      end
-
-      it "allows custom token user fields" do
-        if language == "d"
-          write_grammar <<EOF
-context_user_fields <<
-    string comments;
->>
-token_user_fields <<
-    string comments;
->>
-on_token_node <<
-    ${token.comments} = ${context.comments};
-    ${context.comments} = "";
->>
-tree;
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-    ${context.comments} ~= match;
->>
-token id /\\w+/;
-Start -> IDs;
-IDs -> ;
-IDs -> id:id IDs;
-EOF
-        elsif language == "c"
-          write_grammar <<EOF
-<<
-#include <string.h>
-#include <stdlib.h>
->>
-context_user_fields <<
-    char * comments;
->>
-token_user_fields <<
-    char * comments;
->>
-free_token_node <<
-    free(${token.comments});
->>
-on_token_node <<
-    ${token.comments} = ${context.comments};
-    ${context.comments} = (char *)malloc(1);
-    ${context.comments}[0] = '\\0';
->>
-tree;
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-    size_t cur_len = 0u;
-    if (${context.comments} != NULL)
-        cur_len = strlen(${context.comments});
-    char * commentsnew = (char *)malloc(cur_len + match_length + 1);
-    if (${context.comments} != NULL)
-        memcpy(commentsnew, ${context.comments}, cur_len);
-    memcpy(&commentsnew[cur_len], match, match_length);
-    commentsnew[cur_len + match_length] = '\\0';
-    if (${context.comments} != NULL)
-    {
-        free(${context.comments});
-    }
-    ${context.comments} = commentsnew;
->>
-token id /\\w+/;
-Start -> IDs;
-IDs -> ;
-IDs -> id:id IDs;
-EOF
-        else # C++
-          write_grammar <<EOF
-<<header
-#include <string>
->>
-context_user_fields <<
-    std::string comments;
->>
-token_user_fields <<
-    std::string comments;
->>
-on_token_node <<
-    ${token.comments} = ${context.comments};
-    ${context.comments} = "";
->>
-tree;
-drop /\\s+/;
-drop /#(.*)\\n/ <<
-    ${context.comments} += std::string((const char *)match, match_length);
->>
-token id /\\w+/;
-Start -> IDs;
-IDs -> ;
-IDs -> id:id IDs;
-EOF
-        end
-        run_propane(language: language)
-        compile("spec/test_token_user_fields.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.status).to eq 0
-      end
-
-      it "allows a custom lex function" do
-        if language == "d"
-          write_grammar <<EOF
-<<
-private size_t mylexfn(p_context_t * context, p_token_info_t * out_token_info)
-{
-    static size_t count;
-    size_t result = P_SUCCESS;
-    if (count > 0)
-    {
-        out_token_info.token = TOKEN_a;
-        out_token_info.pvalue = p_value(count);
-        count--;
-    }
-    else
-    {
-        result = p_lex(context, out_token_info);
-        if (out_token_info.token == TOKEN_c)
-        {
-            count = 3;
-        }
-    }
-    return result;
-}
->>
-
-ptype size_t;
-lex_fn mylexfn;
-
-token a << $$ = 7; >>
-token b << $$ = 8; >>
-token c << $$ = 9; >>
-Start -> << $$ = 0; >>
-Start -> Start ID << $$ = ($1 << 4) | $2; >>
-ID -> a << $$ = $1; >>
-ID -> b << $$ = $1; >>
-ID -> c << $$ = $1; >>
-EOF
-        else
-          write_grammar <<EOF
-<<
-static size_t mylexfn(p_context_t * context, p_token_info_t * out_token_info)
-{
-    static size_t count;
-    size_t result = P_SUCCESS;
-    if (count > 0)
-    {
-        out_token_info->token = TOKEN_a;
-        out_token_info->pvalue = p_value(count);
-        count--;
-    }
-    else
-    {
-        result = p_lex(context, out_token_info);
-        if (out_token_info->token == TOKEN_c)
-        {
-            count = 3;
-        }
-    }
-    return result;
-}
->>
-
-ptype size_t;
-lex_fn mylexfn;
-
-token a << $$ = 7; >>
-token b << $$ = 8; >>
-token c << $$ = 9; >>
-Start -> << $$ = 0; >>
-Start -> Start ID << $$ = ($1 << 4) | $2; >>
-ID -> a << $$ = $1; >>
-ID -> b << $$ = $1; >>
-ID -> c << $$ = $1; >>
-EOF
-        end
-        run_propane(language: language)
-        compile("spec/test_custom_lex_fn.#{language}", language: language)
-        results = run_test(language: language)
-        expect(results.status).to eq 0
-      end
-
-      it "provides accessor functions to extract user values from a parser value" do
-        if language == "d"
-          write_grammar <<EOF
-ptype int;
-ptype float = float;
-ptype string = string;
-
-drop /\\s+/;
-token num /\\d+/ << $$ = 42; >>
-token flt (float) /f/ << $$ = 1.5; >>
-token str (string) /s/ << $$ = "hello"; >>
-Start -> num flt str;
-EOF
-        else
-          write_grammar <<EOF
-ptype int;
-ptype float = float;
-ptype string = char *;
-
-drop /\\s+/;
-token num /\\d+/ << $$ = 42; >>
-token flt (float) /f/ << $$ = 1.5; >>
-token str (string) /s/ << $$ = (char *)"hello"; >>
-Start -> num flt str;
-EOF
-        end
-        run_propane(language: language)
-        compile("spec/test_value_accessors.#{language}", language: language)
-        results = run_test(language: language)
         expect(results.stderr).to eq ""
         expect(results.status).to eq 0
       end

spec/test_ast.c

@@ -6,10 +6,10 @@
 int main()
 {
     char const * input = "a, ((b)), b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
     assert(start->pItems1 != NULL);
     assert(start->pItems != NULL);
     Items * items = start->pItems;
@@ -33,22 +33,16 @@ int main()
     assert_eq(22, itemsmore->pItem->pToken1->pvalue);
     assert(itemsmore->pItemsMore == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pItems == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "2 1";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pItems != NULL);
     assert(start->pItems->pItem != NULL);
     assert(start->pItems->pItem->pDual != NULL);
@@ -57,8 +51,5 @@ int main()
     assert(start->pItems->pItem->pDual->pTwo2 == NULL);
     assert(start->pItems->pItem->pDual->pOne1 == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast.d

@@ -10,9 +10,10 @@ int main()
 unittest
 {
     string input = "a, ((b)), b";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert_eq(P_SUCCESS, p_parse(context));
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert_eq(P_SUCCESS, p_parse(&context));
+    Start * start = p_result(&context);
     assert(start.pItems1 !is null);
     assert(start.pItems !is null);
     Items * items = start.pItems;
@@ -36,20 +37,16 @@ unittest
     assert_eq(22, itemsmore.pItem.pToken1.pvalue);
     assert(itemsmore.pItemsMore is null);
 
-    p_tree_delete(start);
-
     input = "";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pItems is null);
 
-    p_tree_delete(start);
-
     input = "2 1";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pItems !is null);
     assert(start.pItems.pItem !is null);
     assert(start.pItems.pItem.pDual !is null);
@@ -57,6 +54,4 @@ unittest
     assert(start.pItems.pItem.pDual.pOne2 !is null);
     assert(start.pItems.pItem.pDual.pTwo2 is null);
     assert(start.pItems.pItem.pDual.pOne1 is null);
-
-    p_tree_delete(start);
 }

spec/test_ast_field_aliases.c

@@ -6,17 +6,14 @@
 int main()
 {
     char const * input = "\na\nb\nc";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
 
     assert_eq(TOKEN_a, start->first->pToken->token);
     assert_eq(TOKEN_b, start->second->pToken->token);
     assert_eq(TOKEN_c, start->third->pToken->token);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast_field_aliases.d

@@ -10,13 +10,12 @@ int main()
 unittest
 {
     string input = "\na\nb\nc";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert(p_parse(context) == P_SUCCESS);
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert(p_parse(&context) == P_SUCCESS);
+    Start * start = p_result(&context);
 
     assert_eq(TOKEN_a, start.first.pToken.token);
     assert_eq(TOKEN_b, start.second.pToken.token);
     assert_eq(TOKEN_c, start.third.pToken.token);
-
-    p_tree_delete(start);
 }

spec/test_ast_invalid_positions.c

@@ -6,10 +6,10 @@
 int main()
 {
     char const * input = "\na\n  bb ccc";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
 
     assert_eq(2, start->pT1->pToken->position.row);
     assert_eq(1, start->pT1->pToken->position.col);
@@ -30,13 +30,10 @@ int main()
     assert_eq(3, start->end_position.row);
     assert_eq(8, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "a\nbb";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start->pT1->pToken->position.row);
     assert_eq(1, start->pT1->pToken->position.col);
@@ -57,13 +54,10 @@ int main()
     assert_eq(2, start->end_position.row);
     assert_eq(2, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "a\nc\nc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start->pT1->pToken->position.row);
     assert_eq(1, start->pT1->pToken->position.col);
@@ -84,13 +78,10 @@ int main()
     assert_eq(3, start->end_position.row);
     assert_eq(1, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "a";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start->pT1->pToken->position.row);
     assert_eq(1, start->pT1->pToken->position.col);
@@ -107,8 +98,5 @@ int main()
     assert_eq(1, start->end_position.row);
     assert_eq(1, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast_invalid_positions.d

@@ -10,9 +10,10 @@ int main()
 unittest
 {
     string input = "\na\n  bb ccc";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert(p_parse(context) == P_SUCCESS);
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert(p_parse(&context) == P_SUCCESS);
+    Start * start = p_result(&context);
 
     assert_eq(2, start.pT1.pToken.position.row);
     assert_eq(1, start.pT1.pToken.position.col);
@@ -33,12 +34,10 @@ unittest
     assert_eq(3, start.end_position.row);
     assert_eq(8, start.end_position.col);
 
-    p_tree_delete(start);
-
     input = "a\nbb";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start.pT1.pToken.position.row);
     assert_eq(1, start.pT1.pToken.position.col);
@@ -59,12 +58,10 @@ unittest
     assert_eq(2, start.end_position.row);
     assert_eq(2, start.end_position.col);
 
-    p_tree_delete(start);
-
     input = "a\nc\nc";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start.pT1.pToken.position.row);
     assert_eq(1, start.pT1.pToken.position.col);
@@ -85,12 +82,10 @@ unittest
     assert_eq(3, start.end_position.row);
     assert_eq(1, start.end_position.col);
 
-    p_tree_delete(start);
-
     input = "a";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(1, start.pT1.pToken.position.row);
     assert_eq(1, start.pT1.pToken.position.col);
@@ -106,6 +101,4 @@ unittest
     assert_eq(1, start.position.col);
     assert_eq(1, start.end_position.row);
     assert_eq(1, start.end_position.col);
-
-    p_tree_delete(start);
 }

spec/test_ast_node_memory_remains.c

@@ -369,11 +369,11 @@ int main(int argc, char * argv[])
         {"size_t_to_ulong", TOKEN_ulong},
         {"main", TOKEN_int},
     };
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((const uint8_t *)input, strlen(input));
+    p_context_init(&context, (const uint8_t *)input, strlen(input));
-    size_t result = p_parse(context);
+    size_t result = p_parse(&context);
     assert_eq(P_SUCCESS, result);
-    PModule * pmod = p_result(context);
+    PModule * pmod = p_result(&context);
     PModuleItems * pmis = pmod->pModuleItems;
     PFunctionDefinition ** pfds;
     size_t n_pfds = 0u;
@@ -411,9 +411,5 @@ int main(int argc, char * argv[])
         }
     }
 
-    free(pfds);
-    p_tree_delete(pmod);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast_node_memory_remains.d

@@ -374,11 +374,11 @@ def main() -> int
         Expected("size_t_to_ulong", TOKEN_ulong),
         Expected("main", TOKEN_int),
     ];
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    size_t result = p_parse(context);
+    size_t result = p_parse(&context);
     assert_eq(P_SUCCESS, result);
-    PModule * pmod = p_result(context);
+    PModule * pmod = p_result(&context);
     PModuleItems * pmis = pmod.pModuleItems;
     PFunctionDefinition *[] pfds;
     while (pmis !is null)
@@ -405,5 +405,4 @@ def main() -> int
             stderr.writeln("Index ", i, ": expected ", expected[i].name, "/", expected[i].token, ", got ", pfds[i].name.pvalue.s, "/", pfds[i].returntype.pType.pTypeBase.pToken1.token);
         }
     }
-    p_tree_delete(pmod);
 }

spec/test_ast_ps.c

@@ -6,10 +6,10 @@
 int main()
 {
     char const * input = "a, ((b)), b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    PStartS * start = p_result(context);
+    PStartS * start = p_result(&context);
     assert(start->pItems1 != NULL);
     assert(start->pItems != NULL);
     PItemsS * items = start->pItems;
@@ -33,22 +33,16 @@ int main()
     assert_eq(22, itemsmore->pItem->pToken1->pvalue);
     assert(itemsmore->pItemsMore == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pItems == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "2 1";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pItems != NULL);
     assert(start->pItems->pItem != NULL);
     assert(start->pItems->pItem->pDual != NULL);
@@ -57,8 +51,5 @@ int main()
     assert(start->pItems->pItem->pDual->pTwo2 == NULL);
     assert(start->pItems->pItem->pDual->pOne1 == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast_ps.d

@@ -10,9 +10,10 @@ int main()
 unittest
 {
     string input = "a, ((b)), b";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert_eq(P_SUCCESS, p_parse(context));
+    p_context_init(&context, input);
-    PStartS * start = p_result(context);
+    assert_eq(P_SUCCESS, p_parse(&context));
+    PStartS * start = p_result(&context);
     assert(start.pItems1 !is null);
     assert(start.pItems !is null);
     PItemsS * items = start.pItems;
@@ -36,20 +37,16 @@ unittest
     assert_eq(22, itemsmore.pItem.pToken1.pvalue);
     assert(itemsmore.pItemsMore is null);
 
-    p_tree_delete(start);
-
     input = "";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pItems is null);
 
-    p_tree_delete(start);
-
     input = "2 1";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pItems !is null);
     assert(start.pItems.pItem !is null);
     assert(start.pItems.pItem.pDual !is null);
@@ -57,6 +54,4 @@ unittest
     assert(start.pItems.pItem.pDual.pOne2 !is null);
     assert(start.pItems.pItem.pDual.pTwo2 is null);
     assert(start.pItems.pItem.pDual.pOne1 is null);
-
-    p_tree_delete(start);
 }

spec/test_ast_token_positions.c

@@ -6,10 +6,10 @@
 int main()
 {
     char const * input = "abbccc";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
 
     assert_eq(1, start->pT1->pToken->position.row);
     assert_eq(1, start->pT1->pToken->position.col);
@@ -43,13 +43,10 @@ int main()
     assert_eq(1, start->end_position.row);
     assert_eq(6, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "\n\n  bb\nc\ncc\n\n     a";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(3, start->pT1->pToken->position.row);
     assert_eq(3, start->pT1->pToken->position.col);
@@ -83,8 +80,5 @@ int main()
     assert_eq(7, start->end_position.row);
     assert_eq(6, start->end_position.col);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }

spec/test_ast_token_positions.d

@@ -10,9 +10,10 @@ int main()
 unittest
 {
     string input = "abbccc";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert(p_parse(context) == P_SUCCESS);
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert(p_parse(&context) == P_SUCCESS);
+    Start * start = p_result(&context);
 
     assert_eq(1, start.pT1.pToken.position.row);
     assert_eq(1, start.pT1.pToken.position.col);
@@ -46,12 +47,10 @@ unittest
     assert_eq(1, start.end_position.row);
     assert_eq(6, start.end_position.col);
 
-    p_tree_delete(start);
-
     input = "\n\n  bb\nc\ncc\n\n     a";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
 
     assert_eq(3, start.pT1.pToken.position.row);
     assert_eq(3, start.pT1.pToken.position.col);
@@ -84,6 +83,4 @@ unittest
     assert_eq(3, start.position.col);
     assert_eq(7, start.end_position.row);
     assert_eq(6, start.end_position.col);
-
-    p_tree_delete(start);
 }

spec/test_basic_math_grammar.c

@@ -5,29 +5,25 @@
 int main()
 {
     char const * input = "1 + 2 * 3 + 4";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(11, p_result(context));
+    assert_eq(11, p_result(&context));
-    p_context_delete(context);
 
     input = "1 * 2 ** 4 * 3";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(48, p_result(context));
+    assert_eq(48, p_result(&context));
-    p_context_delete(context);
 
     input = "(1 + 2) * 3 + 4";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(13, p_result(context));
+    assert_eq(13, p_result(&context));
-    p_context_delete(context);
 
     input = "(2 * 2) ** 3 + 4 + 5";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(73, p_result(context));
+    assert_eq(73, p_result(&context));
-    p_context_delete(context);
 
     return 0;
 }

spec/test_basic_math_grammar.d

@@ -10,23 +10,23 @@ int main()
 unittest
 {
     string input = "1 + 2 * 3 + 4";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(11, p_result(context));
+    assert_eq(11, p_result(&context));
 
     input = "1 * 2 ** 4 * 3";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(48, p_result(context));
+    assert_eq(48, p_result(&context));
 
     input = "(1 + 2) * 3 + 4";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(13, p_result(context));
+    assert_eq(13, p_result(&context));
 
     input = "(2 * 2) ** 3 + 4 + 5";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    assert_eq(73, p_result(context));
+    assert_eq(73, p_result(&context));
 }

spec/test_custom_lex_fn.c

@@ -1,15 +0,0 @@
-#include "testparser.h"
-#include "testutils.h"
-#include <string.h>
-
-int main()
-{
-    char const * input = "cbacba";
-    p_context_t * context = p_context_new((uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
-    size_t result = p_result(context);
-    assert_eq(0x932187932187, result);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_custom_lex_fn.d

@@ -1,18 +0,0 @@
-import testparser;
-import std.stdio;
-import testutils;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input = "cbacba";
-    p_context_t * context = p_context_new(input);
-    assert_eq(P_SUCCESS, p_parse(context));
-    size_t result = p_result(context);
-    assert_eq(0x932187932187, result);
-    p_context_delete(context);
-}

spec/test_drop_code_block.c

@@ -1,15 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-
-int main()
-{
-    char const * input = "    # comment 1\n#    comment 2\na\n";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_drop_code_block.d

@@ -1,16 +0,0 @@
-import testparser;
-import std.stdio;
-import testutils;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input = "    # comment 1\n#    comment 2\na\n";
-    p_context_t * context;
-    context = p_context_new(input);
-    assert(p_parse(context) == P_SUCCESS);
-}

spec/test_error_positions.c

@@ -5,43 +5,38 @@
 int main()
 {
     char const * input = "a 42";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "a\n123\na  a";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context).row == 3);
+    assert(p_position(&context).row == 3);
-    assert(p_position(context).col == 4);
+    assert(p_position(&context).col == 4);
-    assert(p_token(context) == TOKEN_a);
+    assert(p_token(&context) == TOKEN_a);
-    p_context_delete(context);
 
     input = "12";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context).row == 1);
+    assert(p_position(&context).row == 1);
-    assert(p_position(context).col == 1);
+    assert(p_position(&context).col == 1);
-    assert(p_token(context) == TOKEN_num);
+    assert(p_token(&context) == TOKEN_num);
-    p_context_delete(context);
 
     input = "a 12\n\nab";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_UNEXPECTED_INPUT);
+    assert(p_parse(&context) == P_UNEXPECTED_INPUT);
-    assert(p_position(context).row == 3);
+    assert(p_position(&context).row == 3);
-    assert(p_position(context).col == 2);
+    assert(p_position(&context).col == 2);
-    p_context_delete(context);
 
     input = "a 12\n\na\n\n77\na   \xAA";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_DECODE_ERROR);
+    assert(p_parse(&context) == P_DECODE_ERROR);
-    assert(p_position(context).row == 6);
+    assert(p_position(&context).row == 6);
-    assert(p_position(context).col == 5);
+    assert(p_position(&context).col == 5);
 
     assert(strcmp(p_token_names[TOKEN_a], "a") == 0);
     assert(strcmp(p_token_names[TOKEN_num], "num") == 0);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_error_positions.d

@@ -9,31 +9,31 @@ int main()
 unittest
 {
     string input = "a 42";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "a\n123\na  a";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context) == p_position_t(3, 4));
+    assert(p_position(&context) == p_position_t(3, 4));
-    assert(p_token(context) == TOKEN_a);
+    assert(p_token(&context) == TOKEN_a);
 
     input = "12";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context) == p_position_t(1, 1));
+    assert(p_position(&context) == p_position_t(1, 1));
-    assert(p_token(context) == TOKEN_num);
+    assert(p_token(&context) == TOKEN_num);
 
     input = "a 12\n\nab";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_UNEXPECTED_INPUT);
+    assert(p_parse(&context) == P_UNEXPECTED_INPUT);
-    assert(p_position(context) == p_position_t(3, 2));
+    assert(p_position(&context) == p_position_t(3, 2));
 
     input = "a 12\n\na\n\n77\na   \xAA";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_DECODE_ERROR);
+    assert(p_parse(&context) == P_DECODE_ERROR);
-    assert(p_position(context) == p_position_t(6, 5));
+    assert(p_position(&context) == p_position_t(6, 5));
 
     assert(p_token_names[TOKEN_a] == "a");
     assert(p_token_names[TOKEN_num] == "num");

spec/test_field_aliases.c

@@ -6,9 +6,8 @@
 int main()
 {
     char const * input = "foo1\nbar2";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
     return 0;
 }

spec/test_field_aliases.d

@@ -9,7 +9,7 @@ int main()
 unittest
 {
     string input = "foo1\nbar2";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_lexer.c

@@ -38,75 +38,73 @@ int main()
 
     p_token_info_t token_info;
     char const * input = "5 + 4 * \n677 + 567";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 1u);
     assert(token_info.position.col == 1u);
     assert(token_info.end_position.row == 1u);
     assert(token_info.end_position.col == 1u);
     assert(token_info.length == 1u);
     assert(token_info.token == TOKEN_int);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 1u);
     assert(token_info.position.col == 3u);
     assert(token_info.end_position.row == 1u);
     assert(token_info.end_position.col == 3u);
     assert(token_info.length == 1u);
     assert(token_info.token == TOKEN_plus);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 1u);
     assert(token_info.position.col == 5u);
     assert(token_info.end_position.row == 1u);
     assert(token_info.end_position.col == 5u);
     assert(token_info.length == 1u);
     assert(token_info.token == TOKEN_int);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 1u);
     assert(token_info.position.col == 7u);
     assert(token_info.end_position.row == 1u);
     assert(token_info.end_position.col == 7u);
     assert(token_info.length == 1u);
     assert(token_info.token == TOKEN_times);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 2u);
     assert(token_info.position.col == 1u);
     assert(token_info.end_position.row == 2u);
     assert(token_info.end_position.col == 3u);
     assert(token_info.length == 3u);
     assert(token_info.token == TOKEN_int);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 2u);
     assert(token_info.position.col == 5u);
     assert(token_info.end_position.row == 2u);
     assert(token_info.end_position.col == 5u);
     assert(token_info.length == 1u);
     assert(token_info.token == TOKEN_plus);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 2u);
     assert(token_info.position.col == 7u);
     assert(token_info.end_position.row == 2u);
     assert(token_info.end_position.col == 9u);
     assert(token_info.length == 3u);
     assert(token_info.token == TOKEN_int);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 2u);
     assert(token_info.position.col == 10u);
     assert(token_info.end_position.row == 2u);
     assert(token_info.end_position.col == 10u);
     assert(token_info.length == 0u);
     assert(token_info.token == TOKEN___EOF);
-    p_context_delete(context);
 
-    context = p_context_new((uint8_t const *)"", 0u);
+    p_context_init(&context, (uint8_t const *)"", 0u);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info.position.row == 1u);
     assert(token_info.position.col == 1u);
     assert(token_info.end_position.row == 1u);
     assert(token_info.end_position.col == 1u);
     assert(token_info.length == 0u);
     assert(token_info.token == TOKEN___EOF);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer.d

@@ -44,26 +44,26 @@ unittest
 {
     p_token_info_t token_info;
     string input = "5 + 4 * \n677 + 567";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(1, 1), p_position_t(1, 1), 1, TOKEN_int));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(1, 3), p_position_t(1, 3), 1, TOKEN_plus));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(1, 5), p_position_t(1, 5), 1, TOKEN_int));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(1, 7), p_position_t(1, 7), 1, TOKEN_times));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(2, 1), p_position_t(2, 3), 3, TOKEN_int));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(2, 5), p_position_t(2, 5), 1, TOKEN_plus));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(2, 7), p_position_t(2, 9), 3, TOKEN_int));
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(2, 10), p_position_t(2, 10), 0, TOKEN___EOF));
 
-    context = p_context_new("");
+    p_context_init(&context, "");
-    assert(p_lex(context, &token_info) == P_SUCCESS);
+    assert(p_lex(&context, &token_info) == P_SUCCESS);
     assert(token_info == p_token_info_t(p_position_t(1, 1), p_position_t(1, 1), 0, TOKEN___EOF));
 }

spec/test_lexer_match_text.c

@@ -6,11 +6,10 @@
 int main()
 {
     char const * input = "identifier_123";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass1\n");
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer_match_text.d

@@ -9,8 +9,8 @@ int main()
 unittest
 {
     string input = `identifier_123`;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass1");
 }

spec/test_lexer_modes.c

@@ -6,17 +6,15 @@
 int main()
 {
     char const * input = "abc \"a string\" def";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass1\n");
-    p_context_delete(context);
 
     input = "abc \"abc def\" def";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass2\n");
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer_modes.d

@@ -9,13 +9,13 @@ int main()
 unittest
 {
     string input = `abc "a string" def`;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass1");
 
     input = `abc "abc def" def`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass2");
 }

spec/test_lexer_multiple_modes.c

@@ -6,17 +6,15 @@
 int main()
 {
     char const * input = "abc.def";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass1\n");
-    p_context_delete(context);
 
     input = "abc .  abc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass2\n");
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer_multiple_modes.d

@@ -9,13 +9,13 @@ int main()
 unittest
 {
     string input = `abc.def`;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass1");
 
     input = `abc .  abc`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass2");
 }

spec/test_lexer_result_value.c

@@ -5,17 +5,15 @@
 int main()
 {
     char const * input = "x";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 1u);
+    assert(p_result(&context) == 1u);
-    p_context_delete(context);
 
     input = "fabulous";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 8u);
+    assert(p_result(&context) == 8u);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer_result_value.d

@@ -9,13 +9,13 @@ int main()
 unittest
 {
     string input = `x`;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 1u);
+    assert(p_result(&context) == 1u);
 
     input = `fabulous`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 8u);
+    assert(p_result(&context) == 8u);
 }

spec/test_lexer_unknown_character.c

@@ -5,16 +5,14 @@
 int main()
 {
     char const * input = "x";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_UNEXPECTED_INPUT);
+    assert(p_parse(&context) == P_UNEXPECTED_INPUT);
-    p_context_delete(context);
 
     input = "123";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 123u);
+    assert(p_result(&context) == 123u);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_lexer_unknown_character.d

@@ -9,12 +9,12 @@ int main()
 unittest
 {
     string input = `x`;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_UNEXPECTED_INPUT);
+    assert(p_parse(&context) == P_UNEXPECTED_INPUT);
 
     input = `123`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 123u);
+    assert(p_result(&context) == 123u);
 }

spec/test_match_backslashes.c

@@ -5,10 +5,9 @@
 int main()
 {
     char const * input = "\a\b\t\n\v\f\rt";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_match_backslashes.d

@@ -9,7 +9,7 @@ int main()
 unittest
 {
     string input = "\a\b\t\n\v\f\rt";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_multiple_parsers.c

@@ -6,16 +6,14 @@
 int main()
 {
     char const * input1 = "a\n1";
-    myp1_context_t * context1;
+    myp1_context_t context1;
-    context1 = myp1_context_new((uint8_t const *)input1, strlen(input1));
+    myp1_context_init(&context1, (uint8_t const *)input1, strlen(input1));
-    assert(myp1_parse(context1) == MYP1_SUCCESS);
+    assert(myp1_parse(&context1) == MYP1_SUCCESS);
-    myp1_context_delete(context1);
 
     char const * input2 = "bcb";
-    myp2_context_t * context2;
+    myp2_context_t context2;
-    context2 = myp2_context_new((uint8_t const *)input2, strlen(input2));
+    myp2_context_init(&context2, (uint8_t const *)input2, strlen(input2));
-    assert(myp2_parse(context2) == MYP2_SUCCESS);
+    assert(myp2_parse(&context2) == MYP2_SUCCESS);
-    myp2_context_delete(context2);
 
     return 0;
 }

spec/test_multiple_parsers.d

@@ -10,12 +10,12 @@ int main()
 unittest
 {
     string input1 = "a\n1";
-    myp1_context_t * context1;
+    myp1_context_t context1;
-    context1 = myp1_context_new(input1);
+    myp1_context_init(&context1, input1);
-    assert(myp1_parse(context1) == MYP1_SUCCESS);
+    assert(myp1_parse(&context1) == MYP1_SUCCESS);
 
     string input2 = "bcb";
-    myp2_context_t * context2;
+    myp2_context_t context2;
-    context2 = myp2_context_new(input2);
+    myp2_context_init(&context2, input2);
-    assert(myp2_parse(context2) == MYP2_SUCCESS);
+    assert(myp2_parse(&context2) == MYP2_SUCCESS);
 }

spec/test_named_optional_rule_component_ast.c

@@ -6,10 +6,10 @@
 int main()
 {
     char const * input = "b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
     assert(start->a == NULL);
     assert(start->pToken2 != NULL);
     assert_eq(TOKEN_b, start->pToken2->token);
@@ -17,13 +17,10 @@ int main()
     assert(start->pR == NULL);
     assert(start->r == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "abcd";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->a != NULL);
     assert_eq(TOKEN_a, start->pToken1->token);
     assert(start->pToken2 != NULL);
@@ -34,21 +31,15 @@ int main()
     assert(start->pR == start->r);
     assert_eq(TOKEN_c, start->pR->pToken1->token);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "bdc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->a == NULL);
     assert(start->pToken2 != NULL);
     assert(start->r != NULL);
     assert_eq(TOKEN_d, start->pR->pToken1->token);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }
 

spec/test_named_optional_rule_component_ast.d

@@ -10,9 +10,10 @@ int main()
 unittest
 {
     string input = "b";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert(p_parse(context) == P_SUCCESS);
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert(p_parse(&context) == P_SUCCESS);
+    Start * start = p_result(&context);
     assert(start.pToken1 is null);
     assert(start.pToken2 !is null);
     assert_eq(TOKEN_b, start.pToken2.token);
@@ -20,12 +21,10 @@ unittest
     assert(start.pR is null);
     assert(start.r is null);
 
-    p_tree_delete(start);
-
     input = "abcd";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pToken1 != null);
     assert_eq(TOKEN_a, start.pToken1.token);
     assert(start.pToken2 != null);
@@ -36,16 +35,12 @@ unittest
     assert(start.pR == start.r);
     assert_eq(TOKEN_c, start.pR.pToken1.token);
 
-    p_tree_delete(start);
-
     input = "bdc";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pToken1 is null);
     assert(start.pToken2 !is null);
     assert(start.pR !is null);
     assert_eq(TOKEN_d, start.pR.pToken1.token);
-
-    p_tree_delete(start);
 }

spec/test_optional_rule_component.c

@@ -5,20 +5,17 @@
 int main()
 {
     char const * input = "b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "abcd";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "abdc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_optional_rule_component.d

@@ -9,15 +9,15 @@ int main()
 unittest
 {
     string input = "b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "abcd";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "abdc";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_optional_rule_component_ast.c

@@ -6,23 +6,20 @@
 int main()
 {
     char const * input = "b";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    Start * start = p_result(context);
+    Start * start = p_result(&context);
     assert(start->pToken1 == NULL);
     assert(start->pToken2 != NULL);
     assert_eq(TOKEN_b, start->pToken2->token);
     assert(start->pR3 == NULL);
     assert(start->pR == NULL);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "abcd";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pToken1 != NULL);
     assert_eq(TOKEN_a, start->pToken1->token);
     assert(start->pToken2 != NULL);
@@ -31,21 +28,15 @@ int main()
     assert(start->pR == start->pR3);
     assert_eq(TOKEN_c, start->pR->pToken1->token);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     input = "bdc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start->pToken1 == NULL);
     assert(start->pToken2 != NULL);
     assert(start->pR != NULL);
     assert_eq(TOKEN_d, start->pR->pToken1->token);
 
-    p_tree_delete(start);
-    p_context_delete(context);
-
     return 0;
 }
 

spec/test_optional_rule_component_ast.d

@@ -10,21 +10,20 @@ int main()
 unittest
 {
     string input = "b";
-    p_context_t * context = p_context_new(input);
+    p_context_t context;
-    assert(p_parse(context) == P_SUCCESS);
+    p_context_init(&context, input);
-    Start * start = p_result(context);
+    assert(p_parse(&context) == P_SUCCESS);
+    Start * start = p_result(&context);
     assert(start.pToken1 is null);
     assert(start.pToken2 !is null);
     assert_eq(TOKEN_b, start.pToken2.token);
     assert(start.pR3 is null);
     assert(start.pR is null);
 
-    p_tree_delete(start);
-
     input = "abcd";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pToken1 != null);
     assert_eq(TOKEN_a, start.pToken1.token);
     assert(start.pToken2 != null);
@@ -33,16 +32,12 @@ unittest
     assert(start.pR == start.pR3);
     assert_eq(TOKEN_c, start.pR.pToken1.token);
 
-    p_tree_delete(start);
-
     input = "bdc";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    start = p_result(context);
+    start = p_result(&context);
     assert(start.pToken1 is null);
     assert(start.pToken2 !is null);
     assert(start.pR !is null);
     assert_eq(TOKEN_d, start.pR.pToken1.token);
-
-    p_tree_delete(start);
 }

spec/test_parser_identical_rules_lookahead.c

@@ -5,15 +5,13 @@
 int main()
 {
     char const * input = "aba";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "abb";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_parser_identical_rules_lookahead.d

@@ -9,11 +9,11 @@ int main()
 unittest
 {
     string input = "aba";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "abb";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_parser_rule_from_multiple_states.c

@@ -5,23 +5,20 @@
 int main()
 {
     char const * input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context).row == 1);
+    assert(p_position(&context).row == 1);
-    assert(p_position(context).col == 2);
+    assert(p_position(&context).col == 2);
-    assert(context->token == TOKEN___EOF);
+    assert(context.token == TOKEN___EOF);
-    p_context_delete(context);
 
     input = "a b";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "bb";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_parser_rule_from_multiple_states.d

@@ -9,17 +9,17 @@ int main()
 unittest
 {
     string input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_UNEXPECTED_TOKEN);
+    assert(p_parse(&context) == P_UNEXPECTED_TOKEN);
-    assert(p_position(context) == p_position_t(1, 2));
+    assert(p_position(&context) == p_position_t(1, 2));
     assert(context.token == TOKEN___EOF);
 
     input = "a b";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "bb";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_parser_rule_user_code.c

@@ -5,10 +5,9 @@
 int main()
 {
     char const * input = "ab";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_parser_rule_user_code.d

@@ -9,7 +9,7 @@ int main()
 unittest
 {
     string input = "ab";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_parsing_json.c

@@ -6,58 +6,51 @@
 int main()
 {
     char const * input = "";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "{}";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context)->id == JSON_OBJECT);
+    assert(p_result(&context)->id == JSON_OBJECT);
-    p_context_delete(context);
 
     input = "[]";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context)->id == JSON_ARRAY);
+    assert(p_result(&context)->id == JSON_ARRAY);
-    p_context_delete(context);
 
     input = "-45.6";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context)->id == JSON_NUMBER);
+    assert(p_result(&context)->id == JSON_NUMBER);
-    assert(p_result(context)->number == -45.6);
+    assert(p_result(&context)->number == -45.6);
-    p_context_delete(context);
 
     input = "2E-2";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context)->id == JSON_NUMBER);
+    assert(p_result(&context)->id == JSON_NUMBER);
-    assert(p_result(context)->number == 0.02);
+    assert(p_result(&context)->number == 0.02);
-    p_context_delete(context);
 
     input = "{\"hi\":true}";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    JSONValue * o = p_result(context);
+    JSONValue * o = p_result(&context);
     assert(o->id == JSON_OBJECT);
     assert_eq(1, o->object.size);
     assert(strcmp(o->object.entries[0].name, "hi") == 0);
     assert(o->object.entries[0].value->id == JSON_TRUE);
-    p_context_delete(context);
 
     input = "{\"ff\": false, \"nn\": null}";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    o = p_result(context);
+    o = p_result(&context);
     assert(o->id == JSON_OBJECT);
     assert_eq(2, o->object.size);
     assert(strcmp(o->object.entries[0].name, "ff") == 0);
     assert(o->object.entries[0].value->id == JSON_FALSE);
     assert(strcmp(o->object.entries[1].name, "nn") == 0);
     assert(o->object.entries[1].value->id == JSON_NULL);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_parsing_json.d

@@ -10,45 +10,45 @@ int main()
 unittest
 {
     string input = ``;
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = `{}`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONObject)p_result(context));
+    assert(cast(JSONObject)p_result(&context));
 
     input = `[]`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONArray)p_result(context));
+    assert(cast(JSONArray)p_result(&context));
 
     input = `-45.6`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONNumber)p_result(context));
+    assert(cast(JSONNumber)p_result(&context));
-    assert((cast(JSONNumber)p_result(context)).value == -45.6);
+    assert((cast(JSONNumber)p_result(&context)).value == -45.6);
 
     input = `2E-2`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONNumber)p_result(context));
+    assert(cast(JSONNumber)p_result(&context));
-    assert((cast(JSONNumber)p_result(context)).value == 0.02);
+    assert((cast(JSONNumber)p_result(&context)).value == 0.02);
 
     input = `{"hi":true}`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONObject)p_result(context));
+    assert(cast(JSONObject)p_result(&context));
-    JSONObject o = cast(JSONObject)p_result(context);
+    JSONObject o = cast(JSONObject)p_result(&context);
     assert(o.value["hi"]);
     assert(cast(JSONTrue)o.value["hi"]);
 
     input = `{"ff": false, "nn": null}`;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(cast(JSONObject)p_result(context));
+    assert(cast(JSONObject)p_result(&context));
-    o = cast(JSONObject)p_result(context);
+    o = cast(JSONObject)p_result(&context);
     assert(o.value["ff"]);
     assert(cast(JSONFalse)o.value["ff"]);
     assert(o.value["nn"]);

spec/test_parsing_lists.c

@@ -5,23 +5,20 @@
 int main()
 {
     char const * input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 1u);
+    assert(p_result(&context) == 1u);
-    p_context_delete(context);
 
     input = "";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 0u);
+    assert(p_result(&context) == 0u);
-    p_context_delete(context);
 
     input = "aaaaaaaaaaaaaaaa";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 16u);
+    assert(p_result(&context) == 16u);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_parsing_lists.d

@@ -9,18 +9,18 @@ int main()
 unittest
 {
     string input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 1u);
+    assert(p_result(&context) == 1u);
 
     input = "";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 0u);
+    assert(p_result(&context) == 0u);
 
     input = "aaaaaaaaaaaaaaaa";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    assert(p_result(context) == 16u);
+    assert(p_result(&context) == 16u);
 }

spec/test_pattern.c

@@ -6,17 +6,15 @@
 int main()
 {
     char const * input = "abcdef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass1\n");
-    p_context_delete(context);
 
     input = "defabcdef";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass2\n");
-    p_context_delete(context);
 
     return 0;
 }

spec/test_pattern.d

@@ -9,13 +9,13 @@ int main()
 unittest
 {
     string input = "abcdef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass1");
 
     input = "defabcdef";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass2");
 }

spec/test_return_token_from_pattern.c

@@ -5,10 +5,9 @@
 int main()
 {
     char const * input = "defghidef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_return_token_from_pattern.d

@@ -9,7 +9,7 @@ int main()
 unittest
 {
     string input = "defghidef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 }

spec/test_start_rule_ast.c

@@ -0,0 +1,17 @@
+#include "testparser.h"
+#include <assert.h>
+#include <string.h>
+#include "testutils.h"
+
+int main()
+{
+    char const * input = "hi";
+    p_context_t context;
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
+    assert_eq(P_SUCCESS, p_parse(&context));
+    Top * top = p_result(&context);
+    assert(top->pToken != NULL);
+    assert_eq(TOKEN_hi, top->pToken->token);
+
+    return 0;
+}

spec/test_start_rule_ast.d

@@ -10,10 +10,10 @@ int main()
 unittest
 {
     string input = "hi";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert_eq(P_SUCCESS, p_parse(context));
+    assert_eq(P_SUCCESS, p_parse(&context));
-    Top * top = p_result(context);
+    Top * top = p_result(&context);
     assert(top.pToken !is null);
     assert_eq(TOKEN_hi, top.pToken.token);
 }

spec/test_start_rule_tree.c

@@ -1,20 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <string.h>
-#include "testutils.h"
-
-int main()
-{
-    char const * input = "hi";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
-    Top * top = p_result(context);
-    assert(top->pToken != NULL);
-    assert_eq(TOKEN_hi, top->pToken->token);
-
-    p_tree_delete(top);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_starting_rules.c

@@ -1,30 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <string.h>
-#include "testutils.h"
-
-int main()
-{
-    char const * input = "bbbb";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
-    int result = p_result(context);
-    assert_eq(8, result);
-    p_context_delete(context);
-
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse_Bs(context) == P_SUCCESS);
-    result = p_result_Bs(context);
-    assert_eq(8, result);
-    p_context_delete(context);
-
-    input = "c";
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse_R(context) == P_SUCCESS);
-    result = p_result_R(context);
-    assert_eq(3, result);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_starting_rules.d

@@ -1,29 +0,0 @@
-import testparser;
-import std.stdio;
-import testutils;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input = "bbbb";
-    p_context_t * context;
-    context = p_context_new(input);
-    assert(p_parse(context) == P_SUCCESS);
-    int result = p_result(context);
-    assert(result == 8);
-
-    context = p_context_new(input);
-    assert(p_parse_Bs(context) == P_SUCCESS);
-    result = p_result_Bs(context);
-    assert(result == 8);
-
-    input = "c";
-    context = p_context_new(input);
-    assert(p_parse_R(context) == P_SUCCESS);
-    result = p_result_R(context);
-    assert(result == 3);
-}

spec/test_starting_rules_tree.c

@@ -1,40 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <string.h>
-#include "testutils.h"
-
-int main()
-{
-    char const * input = "bbbb";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
-    Start * start = p_result(context);
-    assert_not_null(start->bs);
-    assert_not_null(start->bs->b);
-    assert_not_null(start->bs->bs->b);
-    assert_not_null(start->bs->bs->bs->b);
-    assert_not_null(start->bs->bs->bs->bs->b);
-    p_tree_delete(start);
-    p_context_delete(context);
-
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse_Bs(context) == P_SUCCESS);
-    Bs * bs = p_result_Bs(context);
-    assert_not_null(bs->b);
-    assert_not_null(bs->bs->b);
-    assert_not_null(bs->bs->bs->b);
-    assert_not_null(bs->bs->bs->bs->b);
-    p_tree_delete_Bs(bs);
-    p_context_delete(context);
-
-    input = "c";
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse_R(context) == P_SUCCESS);
-    R * r = p_result_R(context);
-    assert_not_null(r->c);
-    p_tree_delete_R(r);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_starting_rules_tree.d

@@ -1,41 +0,0 @@
-import testparser;
-import std.stdio;
-import testutils;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input = "bbbb";
-    p_context_t * context = p_context_new(input);
-    assert(p_parse(context) == P_SUCCESS);
-    Start * start = p_result(context);
-    assert(start.bs);
-    assert(start.bs.b);
-    assert(start.bs.bs.b);
-    assert(start.bs.bs.bs.b);
-    assert(start.bs.bs.bs.bs.b);
-
-    p_tree_delete(start);
-
-    context = p_context_new(input);
-    assert(p_parse_Bs(context) == P_SUCCESS);
-    Bs * bs = p_result_Bs(context);
-    assert(bs.b);
-    assert(bs.bs.b);
-    assert(bs.bs.bs.b);
-    assert(bs.bs.bs.bs.b);
-
-    p_tree_delete_Bs(bs);
-
-    input = "c";
-    context = p_context_new(input);
-    assert(p_parse_R(context) == P_SUCCESS);
-    R * r = p_result_R(context);
-    assert(r.c);
-
-    p_tree_delete_R(r);
-}

spec/test_token_user_fields.c

@@ -1,46 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-int main()
-{
-    char const * input =
-        "# c1\n"
-        "#  c2\n"
-        "\n"
-        "first\n"
-        "\n   \n  \n"
-        "  # s1\n"
-        "   #   s2\n"
-        "second\n";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
-    Start * start = p_result(context);
-    assert(start->pIDs);
-    assert(start->pIDs->id);
-#ifdef __cplusplus
-    assert(start->pIDs->id->comments == "# c1\n#  c2\n");
-#else
-    assert(start->pIDs->id->comments);
-    assert(strcmp(start->pIDs->id->comments, "# c1\n#  c2\n") == 0);
-#endif
-    assert(start->pIDs->pIDs);
-    assert(start->pIDs->pIDs->id);
-#ifdef __cplusplus
-    assert(start->pIDs->pIDs->id->comments == "# s1\n#   s2\n");
-#else
-    assert(start->pIDs->pIDs->id->comments);
-    assert(strcmp(start->pIDs->pIDs->id->comments, "# s1\n#   s2\n") == 0);
-#endif
-
-#ifndef __cplusplus
-    free(context->comments);
-#endif
-    p_context_delete(context);
-    p_tree_delete(start);
-
-    return 0;
-}

spec/test_token_user_fields.d

@@ -1,31 +0,0 @@
-import testparser;
-import std.stdio;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input =
-        "# c1\n" ~
-        "#  c2\n" ~
-        "\n" ~
-        "first\n" ~
-        "\n   \n  \n" ~
-        "  # s1\n" ~
-        "   #   s2\n" ~
-        "second\n";
-    p_context_t * context = p_context_new(input);
-    assert(p_parse(context) == P_SUCCESS);
-    Start * start = p_result(context);
-    assert(start.pIDs);
-    assert(start.pIDs.id);
-    assert(start.pIDs.id.comments == "# c1\n#  c2\n");
-    assert(start.pIDs.pIDs);
-    assert(start.pIDs.pIDs.id);
-    assert(start.pIDs.pIDs.id.comments == "# s1\n#   s2\n");
-
-    p_tree_delete(start);
-}

spec/test_tree_delete_token_node_memory.c

@@ -1,20 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <string.h>
-#include "testutils.h"
-
-int main()
-{
-    char const * input = "ab";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert_eq(P_SUCCESS, p_parse(context));
-    Start * start = p_result(context);
-    assert(start->a != NULL);
-    assert(*start->a->pvalue == 1);
-    assert(start->b != NULL);
-    assert(*start->b->pvalue == 2);
-
-    p_tree_delete(start);
-    p_context_delete(context);
-}

spec/test_user_code.c

@@ -6,17 +6,15 @@
 int main()
 {
     char const * input = "abcdef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass1\n");
-    p_context_delete(context);
 
     input = "abcabcdef";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     printf("pass2\n");
-    p_context_delete(context);
 
     return 0;
 }

spec/test_user_code.d

@@ -9,13 +9,13 @@ int main()
 unittest
 {
     string input = "abcdef";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass1");
 
     input = "abcabcdef";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
     writeln("pass2");
 }

spec/test_user_context_fields.c

@@ -1,20 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-int main()
-{
-    char const * input = "aaa\n\n\na\n    # comment 1\na  a    aa\n\naa\n#    comment 2\na\n";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
-
-    fprintf(stderr, "comments: %s", context->comments);
-    fprintf(stderr, "acount: %u\n", context->acount);
-    free(context->comments);
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_user_context_fields.d

@@ -1,19 +0,0 @@
-import testparser;
-import std.stdio;
-import testutils;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    string input = "aaa\n\n\na\n    # comment 1\na  a    aa\n\naa\n#    comment 2\na\n";
-    p_context_t * context;
-    context = p_context_new(input);
-    assert(p_parse(context) == P_SUCCESS);
-
-    stderr.writeln("comments: ", context.comments);
-    stderr.writeln("acount: ", context.acount);
-}

spec/test_user_terminate.c

@@ -6,16 +6,14 @@
 int main()
 {
     char const * input = "aacc";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "abc";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_USER_TERMINATED);
+    assert(p_parse(&context) == P_USER_TERMINATED);
-    assert(p_user_terminate_code(context) == 4200);
+    assert(p_user_terminate_code(&context) == 4200);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_user_terminate.d

@@ -9,12 +9,12 @@ int main()
 unittest
 {
     string input = "aacc";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "abc";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_USER_TERMINATED);
+    assert(p_parse(&context) == P_USER_TERMINATED);
-    assert(p_user_terminate_code(context) == 4200);
+    assert(p_user_terminate_code(&context) == 4200);
 }

spec/test_user_terminate_lexer.c

@@ -6,16 +6,14 @@
 int main()
 {
     char const * input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
-    p_context_delete(context);
 
     input = "b";
-    context = p_context_new((uint8_t const *)input, strlen(input));
+    p_context_init(&context, (uint8_t const *)input, strlen(input));
-    assert(p_parse(context) == P_USER_TERMINATED);
+    assert(p_parse(&context) == P_USER_TERMINATED);
-    assert(p_user_terminate_code(context) == 8675309);
+    assert(p_user_terminate_code(&context) == 8675309);
-    p_context_delete(context);
 
     return 0;
 }

spec/test_user_terminate_lexer.d

@@ -9,12 +9,12 @@ int main()
 unittest
 {
     string input = "a";
-    p_context_t * context;
+    p_context_t context;
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_SUCCESS);
+    assert(p_parse(&context) == P_SUCCESS);
 
     input = "b";
-    context = p_context_new(input);
+    p_context_init(&context, input);
-    assert(p_parse(context) == P_USER_TERMINATED);
+    assert(p_parse(&context) == P_USER_TERMINATED);
-    assert(p_user_terminate_code(context) == 8675309);
+    assert(p_user_terminate_code(&context) == 8675309);
 }

spec/test_value_accessors.c

@@ -1,29 +0,0 @@
-#include "testparser.h"
-#include <assert.h>
-#include <string.h>
-
-int main()
-{
-    p_token_info_t token_info;
-    char const * input = "42 f s";
-    p_context_t * context;
-    context = p_context_new((uint8_t const *)input, strlen(input));
-
-    /* Default ptype value extracted with p_value_get(). */
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_num);
-    assert(p_value_get(&token_info.pvalue) == 42);
-
-    /* Named ptype values extracted with p_value_get_XXX(). */
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_flt);
-    assert(p_value_get_float(&token_info.pvalue) == 1.5);
-
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_str);
-    assert(strcmp(p_value_get_string(&token_info.pvalue), "hello") == 0);
-
-    p_context_delete(context);
-
-    return 0;
-}

spec/test_value_accessors.d

@@ -1,29 +0,0 @@
-import testparser;
-import std.stdio;
-
-int main()
-{
-    return 0;
-}
-
-unittest
-{
-    p_token_info_t token_info;
-    string input = "42 f s";
-    p_context_t * context;
-    context = p_context_new(input);
-
-    /* Default ptype value extracted with p_value_get(). */
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_num);
-    assert(p_value_get(&token_info.pvalue) == 42);
-
-    /* Named ptype values extracted with p_value_get_XXX(). */
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_flt);
-    assert(p_value_get_float(&token_info.pvalue) == 1.5);
-
-    assert(p_lex(context, &token_info) == P_SUCCESS);
-    assert(token_info.token == TOKEN_str);
-    assert(p_value_get_string(&token_info.pvalue) == "hello");
-}