Add API to access unexpected token found - close #18

assets/parser.c.erb

@@ -841,7 +841,7 @@ static size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token)
  *   can be accessed with <%= @grammar.prefix %>result().
  * @retval P_UNEXPECTED_TOKEN
  *   An unexpected token was encountered that does not match any grammar rule.
- *   The value context->token holds the unexpected token.
+ *   The function p_token(&context) can be used to get the unexpected token.
  * @reval P_DECODE_ERROR
  *   The decoder encountered invalid text encoding.
  * @reval P_UNEXPECTED_INPUT
@@ -974,3 +974,13 @@ size_t <%= @grammar.prefix %>user_terminate_code(<%= @grammar.prefix %>context_t
 {
     return context->user_terminate_code;
 }
+
+/**
+ * Get the parse token.
+ *
+ * @return Parse token.
+ */
+<%= @grammar.prefix %>token_t <%= @grammar.prefix %>token(<%= @grammar.prefix %>context_t * context)
+{
+    return context->token;
+}

assets/parser.d.erb

@@ -859,7 +859,7 @@ private size_t check_reduce(size_t state_id, <%= @grammar.prefix %>token_t token
  *   can be accessed with <%= @grammar.prefix %>result().
  * @retval P_UNEXPECTED_TOKEN
  *   An unexpected token was encountered that does not match any grammar rule.
- *   The value context.token holds the unexpected token.
+ *   The function p_token(&context) can be used to get the unexpected token.
  * @reval P_DECODE_ERROR
  *   The decoder encountered invalid text encoding.
  * @reval P_UNEXPECTED_INPUT
@@ -983,3 +983,13 @@ public size_t <%= @grammar.prefix %>user_terminate_code(<%= @grammar.prefix %>co
 {
     return context.user_terminate_code;
 }
+
+/**
+ * Get the parse token.
+ *
+ * @return Parse token.
+ */
+public <%= @grammar.prefix %>token_t <%= @grammar.prefix %>token(<%= @grammar.prefix %>context_t * context)
+{
+    return context.token;
+}

assets/parser.h.erb

@@ -137,3 +137,5 @@ size_t <%= @grammar.prefix %>parse(<%= @grammar.prefix %>context_t * context);
 <%= @grammar.prefix %>position_t <%= @grammar.prefix %>position(<%= @grammar.prefix %>context_t * context);
 
 size_t <%= @grammar.prefix %>user_terminate_code(<%= @grammar.prefix %>context_t * context);
+
+<%= @grammar.prefix %>token_t <%= @grammar.prefix %>token(<%= @grammar.prefix %>context_t * context);