emileclarkb/hammer
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Implemented a bunch more combinators

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This commit is contained in:
Dan Hirsch 2012-05-13 01:01:26 +01:00
parent 0e9bcb31ca
commit 3afe324aaa
5 changed files with 212 additions and 70 deletions
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15
src/hammer.h
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@ -177,10 +177,10 @@ const parser_t* difference(const parser_t* p1, const parser_t* p2);
const parser_t* xor(const parser_t* p1, const parser_t* p2);
/* Given a parser, p, this parser succeeds for zero or more repetitions of p. */
const parser_t* repeat0(const parser_t* p);
const parser_t* many(const parser_t* p);
/* Given a parser, p, this parser succeeds for one or more repetitions of p. */
const parser_t* repeat1(const parser_t* p);
const parser_t* many1(const parser_t* p);
/* Given a parser, p, this parser succeeds for exactly N repetitions of p. */
const parser_t* repeat_n(const parser_t* p, const size_t n);
@ -191,10 +191,15 @@ const parser_t* optional(const parser_t* p);
/* Given a parser, p, this parser succeeds if p succeeds, but doesn't include p's result in the result. */
const parser_t* ignore(const parser_t* p);
/* Given a parser, p, and a parser for a separator, sep, this parser matches a list of things that p can parse, separated by sep.
* For example, if p is repeat1(range('0','9')) and sep is ch(','), list(p, sep) will match a comma-separated list of integers.
/* Given a parser, p, and a parser for a separator, sep, this parser matches a (possibly empty) list of things that p can parse, separated by sep.
* For example, if p is repeat1(range('0','9')) and sep is ch(','), sepBy(p, sep) will match a comma-separated list of integers.
*/
const parser_t* list(const parser_t* p, const parser_t* sep);
const parser_t* sepBy(const parser_t* p, const parser_t* sep);
/* Given a parser, p, and a parser for a separator, sep, this parser matches a list of things that p can parse, separated by sep. Unlike sepBy, this ensures that the result has at least one element.
* For example, if p is repeat1(range('0','9')) and sep is ch(','), sepBy1(p, sep) will match a comma-separated list of integers.
*/
const parser_t* sepBy1(const parser_t* p, const parser_t* sep);
/* This parser always returns a zero length match, i.e., empty string. */
const parser_t* epsilon_p();