43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
//
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// match.h - Header file for BP virtual machine.
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//
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#pragma once
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#include <stdbool.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "pattern.h"
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//
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// Pattern matching result object
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//
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typedef struct bp_match_s bp_match_t;
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struct bp_match_s {
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// Where the match starts and ends (end is after the last character)
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const char *start, *end;
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bp_pat_t *pat;
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// Intrusive linked list node for garbage collection:
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struct {
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bp_match_t **home, *next;
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} gc;
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bp_match_t **children;
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bp_match_t *_children[3];
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};
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typedef void (*bp_errhand_t)(char **err_msg);
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__attribute__((nonnull))
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void recycle_match(bp_match_t **at_m);
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size_t free_all_matches(void);
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size_t recycle_all_matches(void);
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bool next_match(bp_match_t **m, const char *start, const char *end, bp_pat_t *pat, bp_pat_t *defs, bp_pat_t *skip, bool ignorecase);
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#define stop_matching(m) next_match(m, NULL, NULL, NULL, NULL, NULL, 0)
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bp_errhand_t bp_set_error_handler(bp_errhand_t handler);
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__attribute__((nonnull))
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bp_match_t *get_numbered_capture(bp_match_t *m, int n);
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__attribute__((nonnull, pure))
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bp_match_t *get_named_capture(bp_match_t *m, const char *name, ssize_t namelen);
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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