/usr/include/ibdm/Regexp.h is in libibdm-dev 1.5.7-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2004-2010 Mellanox Technologies LTD. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#ifndef IBDM_REXIFC_H
#define IBDM_REXIFC_H
// this file holds simplified object oriented interface for
// reguar expressions
#include <string.h>
#include <sys/types.h>
#include <regex.h>
#include <stdio.h>
#include <iostream>
#include <string>
using namespace std;
class rexMatch {
const char *str;
int nMatches;
regmatch_t *matches;
public:
// no default constructor
rexMatch();
// construct:
rexMatch(const char *s, int numMatches) {
str = s;
nMatches = numMatches;
matches = new regmatch_t[nMatches + 1];
};
// destrutor:
~rexMatch() {
delete [] matches;
};
// usefull:
int field(int num, char *buf) {
// check for non match:
if (num > nMatches || matches[num].rm_so < 0) {
buf[0] = '\0';
return 0;
}
strncpy(buf, str + matches[num].rm_so, matches[num].rm_eo - matches[num].rm_so + 1);
buf[matches[num].rm_eo - matches[num].rm_so] = '\0';
return 0;
};
// string returning the field
int field(int num, string &res) {
string tmp = string(str);
// check for non match:
if (num > nMatches || matches[num].rm_so < 0) {
res = "";
return 0;
}
res = tmp.substr(matches[num].rm_so, matches[num].rm_eo - matches[num].rm_so);
return 0;
};
string field(int num) {
string tmp = string(str);
// check for non match:
if (num > nMatches || matches[num].rm_so < 0) {
return string("");
}
return tmp.substr(matches[num].rm_so, matches[num].rm_eo - matches[num].rm_so);
};
inline int numFields() {return nMatches;};
friend class regExp;
};
// this will basically hold the compiled regular expression
class regExp {
regex_t re;
char *expr;
int status;
public:
// prevent default constructor
regExp();
// construct
regExp(const char *pattern, int flags = REG_EXTENDED) {
expr = new char[strlen(pattern) + 1];
strcpy(expr, pattern);
status = regcomp(&re, expr, flags);
if (status) {
cout << "-E- Fail to compile regular expression:%s\n" << pattern << endl;
}
}
// destructor
~regExp() {
regfree(&re);
delete [] expr;
}
// access:
inline const char *getExpr() const {return expr;};
inline int valid() const {return (status == 0);};
// usefullnss:
class rexMatch * apply(const char *str, int flags = 0) {
class rexMatch *res = new rexMatch(str, re.re_nsub);
if (regexec(&re, str, re.re_nsub + 1, res->matches, flags)) {
delete res;
return 0;
}
return res;
}
friend class rexMatch;
};
// holds specifc compares
#endif /* IBDM_REXIFC_H */
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