109 lines
2.6 KiB
Plaintext
109 lines
2.6 KiB
Plaintext
/**
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* @file
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*
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* This file is generated by Propane.
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*/
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#ifndef PROPANE_PARSER_H
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#define PROPANE_PARSER_H
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#include <stdint.h>
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/**************************************************************************
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* Public types
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*************************************************************************/
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/* Result codes. */
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#define <%= @grammar.prefix.upcase %>SUCCESS 0u
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#define <%= @grammar.prefix.upcase %>DECODE_ERROR 1u
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#define <%= @grammar.prefix.upcase %>UNEXPECTED_INPUT 2u
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#define <%= @grammar.prefix.upcase %>UNEXPECTED_TOKEN 3u
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#define <%= @grammar.prefix.upcase %>DROP 4u
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#define <%= @grammar.prefix.upcase %>EOF 5u
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/** Token type. */
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typedef <%= get_type_for(@grammar.invalid_token_id) %> <%= @grammar.prefix %>token_t;
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/** Token IDs. */
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<% @grammar.tokens.each_with_index do |token, index| %>
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#define TOKEN_<%= token.code_name %> <%= index %>u
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<% unless token.id == index %>
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<% raise "Token ID (#{token.id}) does not match index (#{index}) for token #{token.name}!" %>
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<% end %>
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<% end %>
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#define INVALID_TOKEN_ID <%= @grammar.invalid_token_id %>u
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/** Code point type. */
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typedef uint32_t <%= @grammar.prefix %>code_point_t;
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/** Parser values type(s). */
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typedef union
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{
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<% @grammar.ptypes.each do |name, typestring| %>
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<%= typestring %> v_<%= name %>;
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<% end %>
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} <%= @grammar.prefix %>value_t;
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/**
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* A structure to keep track of parser position.
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*
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* This is useful for reporting errors, etc...
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*/
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typedef struct
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{
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/** Input text row (0-based). */
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uint32_t row;
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/** Input text column (0-based). */
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uint32_t col;
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} <%= @grammar.prefix %>position_t;
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/** Lexed token information. */
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typedef struct
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{
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/** Text position where the token was found. */
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<%= @grammar.prefix %>position_t position;
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/** Number of input bytes used by the token. */
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size_t length;
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/** Token that was lexed. */
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<%= @grammar.prefix %>token_t token;
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/** Parser value associated with the token. */
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<%= @grammar.prefix %>value_t pvalue;
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} <%= @grammar.prefix %>token_info_t;
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/**
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* Lexer and parser context.
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*
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* The user must allocate an instance of this structure and pass it to any
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* public API function.
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*/
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typedef struct
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{
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/* Lexer context data. */
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/** Input text. */
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uint8_t const * input;
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/** Input text index (byte offset). */
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size_t input_index;
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/** Input text position (row/column). */
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<%= @grammar.prefix %>position_t text_position;
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/** Current lexer mode. */
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size_t mode;
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/* Parser context data. */
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/** Parse result value. */
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<%= @grammar.prefix %>value_t parse_result;
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/** Unexpected token received. */
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<%= @grammar.prefix %>token_t token;
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} <%= @grammar.prefix %>context_t;
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#endif
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