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-rw-r--r--xregex.h97
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diff --git a/xregex.h b/xregex.h
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--- a/xregex.h
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-/****************************************************************************
- * bfs *
- * Copyright (C) 2022 Tavian Barnes <tavianator@tavianator.com> and bfs *
- * contributors *
- * *
- * Permission to use, copy, modify, and/or distribute this software for any *
- * purpose with or without fee is hereby granted. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES *
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF *
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR *
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES *
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN *
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF *
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. *
- ****************************************************************************/
-
-#ifndef BFS_XREGEX_H
-#define BFS_XREGEX_H
-
-/**
- * A compiled regular expression.
- */
-struct bfs_regex;
-
-/**
- * Regex syntax flavors.
- */
-enum bfs_regex_type {
- BFS_REGEX_POSIX_BASIC,
- BFS_REGEX_POSIX_EXTENDED,
- BFS_REGEX_EMACS,
- BFS_REGEX_GREP,
-};
-
-/**
- * Regex compilation flags.
- */
-enum bfs_regcomp_flags {
- /** Treat the regex case-insensitively. */
- BFS_REGEX_ICASE = 1 << 0,
-};
-
-/**
- * Regex execution flags.
- */
-enum bfs_regexec_flags {
- /** Only treat matches of the entire string as successful. */
- BFS_REGEX_ANCHOR = 1 << 0,
-};
-
-/**
- * Wrapper for regcomp() that supports additional regex types.
- *
- * @param[out] preg
- * Will hold the compiled regex.
- * @param pattern
- * The regular expression to compile.
- * @param type
- * The regular expression syntax to use.
- * @param flags
- * Regex compilation flags.
- * @return
- * 0 on success, -1 on failure.
- */
-int bfs_regcomp(struct bfs_regex **preg, const char *pattern, enum bfs_regex_type type, enum bfs_regcomp_flags flags);
-
-/**
- * Wrapper for regexec().
- *
- * @param regex
- * The regular expression to execute.
- * @param str
- * The string to match against.
- * @param flags
- * Regex execution flags.
- * @return
- * 1 for a match, 0 for no match, -1 on failure.
- */
-int bfs_regexec(struct bfs_regex *regex, const char *str, enum bfs_regexec_flags flags);
-
-/**
- * Free a compiled regex.
- */
-void bfs_regfree(struct bfs_regex *regex);
-
-/**
- * Get a human-readable regex error message.
- *
- * @param regex
- * The compiled regex.
- * @return
- * A human-readable description of the error, which should be free()'d.
- */
-char *bfs_regerror(const struct bfs_regex *regex);
-
-#endif // BFS_XREGEX_H