/usr/include/zrex.h is in libczmq-dev 3.0.2-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | /* =========================================================================
zrex - work with regular expressions
Copyright (c) the Contributors as noted in the AUTHORS file.
This file is part of CZMQ, the high-level C binding for 0MQ:
http://czmq.zeromq.org.
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
=========================================================================
*/
#ifndef __ZREX_H_INCLUDED__
#define __ZREX_H_INCLUDED__
#ifdef __cplusplus
extern "C" {
#endif
// @interface
// Constructor. Optionally, sets an expression against which we can match
// text and capture hits. If there is an error in the expression, reports
// zrex_valid() as false and provides the error in zrex_strerror(). If you
// set a pattern, you can call zrex_matches() to test it against text.
CZMQ_EXPORT zrex_t *
zrex_new (const char *expression);
// Destructor
CZMQ_EXPORT void
zrex_destroy (zrex_t **self_p);
// Return true if the expression was valid and compiled without errors.
CZMQ_EXPORT bool
zrex_valid (zrex_t *self);
// Return the error message generated during compilation of the expression.
CZMQ_EXPORT const char *
zrex_strerror (zrex_t *self);
// Returns true if the text matches the previously compiled expression.
// Use this method to compare one expression against many strings.
CZMQ_EXPORT bool
zrex_matches (zrex_t *self, const char *text);
// Returns true if the text matches the supplied expression. Use this
// method to compare one string against several expressions.
CZMQ_EXPORT bool
zrex_eq (zrex_t *self, const char *text, const char *expression);
// Returns number of hits from last zrex_matches or zrex_eq. If the text
// matched, returns 1 plus the number of capture groups. If the text did
// not match, returns zero. To retrieve individual capture groups, call
// zrex_hit ().
CZMQ_EXPORT int
zrex_hits (zrex_t *self);
// Returns the Nth capture group from the last expression match, where
// N is 0 to the value returned by zrex_hits(). Capture group 0 is the
// whole matching string. Sequence 1 is the first capture group, if any,
// and so on.
CZMQ_EXPORT const char *
zrex_hit (zrex_t *self, uint index);
// Fetches hits into string variables provided by caller; this makes for
// nicer code than accessing hits by index. Caller should not modify nor
// free the returned values. Returns number of strings returned. This
// method starts at hit 1, i.e. first capture group, as hit 0 is always
// the original matched string.
CZMQ_EXPORT int
zrex_fetch (zrex_t *self, const char **string_p, ...);
// Self test of this class
CZMQ_EXPORT void
zrex_test (bool verbose);
// @end
#ifdef __cplusplus
}
#endif
#endif
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