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Extend parse_token to accept an optional validator function

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omicron
2025-04-01 21:10:19 +02:00
parent 1b21364939
commit 048b8fcf9d
2 changed files with 8 additions and 3 deletions
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6
src/parser_util.c
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@@ -16,8 +16,10 @@ parse_result_t parse_success(ast_node_t *ast, tokenlist_entry_t *next) {
}
parse_result_t parse_token(tokenlist_entry_t *current,
lexer_token_id_t token_id, node_id_t ast_id) {
if (current->token.id != token_id)
lexer_token_id_t token_id, node_id_t ast_id,
token_validator_t is_valid) {
if (current->token.id != token_id ||
(is_valid && !is_valid(&current->token)))
return parse_no_match();
ast_node_t *node;

5
src/parser_util.h
View File

@@ -11,11 +11,14 @@ typedef struct parse_result {
ast_node_t *node;
} parse_result_t;
typedef bool (*token_validator_t)(lexer_token_t *);
parse_result_t parse_error(error_t *err);
parse_result_t parse_no_match();
parse_result_t parse_success(ast_node_t *ast, tokenlist_entry_t *next);
parse_result_t parse_token(tokenlist_entry_t *current,
lexer_token_id_t token_id, node_id_t ast_id);
lexer_token_id_t token_id, node_id_t ast_id,
token_validator_t is_valid);
tokenlist_entry_t *skip_insignificant(tokenlist_entry_t *);