emileclarkb/hammer
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Merge remote-tracking branch 'upstream/master'

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This commit is contained in:
Dan Hirsch 2012-05-03 01:59:03 +01:00
commit a076c4d12c
3 changed files with 92 additions and 2 deletions
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6
src/hammer.h
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@ -78,6 +78,9 @@ typedef struct parsed_token {
};
} parsed_token_t;
/* If a parse fails, the parse result will be NULL.
* If a parse is successful but there's nothing there (i.e., if end_p succeeds) then there's a parse result but its ast is NULL.
*/
typedef struct parse_result {
const parsed_token_t *ast;
} parse_result_t;
@ -117,7 +120,10 @@ const parser_t* nothing_p();
/* Given an array of parsers, p_array, apply each parser in order. The parse succeeds only if all parsers succeed. */
const parser_t* sequence(const parser_t* p_array[]);
/* Given an array of parsers, p_array, apply each parser in order. The first parser to succeed is the result; if no parsers succeed, the parse fails. */
const parser_t* choice(const parser_t* p_array[]);
const parser_t* butnot(const parser_t* p1, const parser_t* p2);
const parser_t* difference(const parser_t* p1, const parser_t* p2);
const parser_t* xor(const parser_t* p1, const parser_t* p2);