зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
2.6 KiB
C++
90 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#ifndef _C_UTILS_H_
|
|
#define _C_UTILS_H_
|
|
|
|
#include "Pool.h"
|
|
|
|
/* This file is intended to be a repository for C/C++ utils that
|
|
* are reimplemented because the standard C routines are unsuitable
|
|
* for some reason (not thread-safe, not available on all platforms)
|
|
* and NSPR does not have them.
|
|
*/
|
|
|
|
/* Performs the work done by the standard C routine strtok; like
|
|
* strtok, it mangles the original string. Use it as follows:
|
|
* const char *stringToBeBrokenUp;
|
|
* Strtok tok(stringToBeBrokenUp);
|
|
* for (const char *token = tok.get(pattern); token;
|
|
* token = tok.get(pattern))
|
|
* use tok;
|
|
*/
|
|
class Strtok {
|
|
public:
|
|
/* string is a sequence of zero or more text tokens separated
|
|
* by spans of one or more characters in a pattern string.
|
|
*/
|
|
Strtok(char *string) : string(string) { }
|
|
|
|
/* returns a pointer to the first character of the next
|
|
* "token" in the string separated by one of the characters
|
|
* in pattern, NULL if there are no nore tokens.
|
|
*/
|
|
char *get(const char *pattern);
|
|
|
|
private:
|
|
/* The candidate string */
|
|
char *string;
|
|
|
|
};
|
|
|
|
/* duplicate the string, using the Pool provided to alloc memory */
|
|
char *dupString(const char *str, Pool &pool);
|
|
|
|
/* Append t to s, whose initial size (not length) is strSize. Grows s if
|
|
* necessary; on success, returns the updated s and sets strSize to
|
|
* the new size of the string.
|
|
*/
|
|
char *append(char *&s, Uint32 &strSize, const char *t);
|
|
|
|
/* Class that houses a file descriptor and closes the file on exit */
|
|
#include "prio.h"
|
|
|
|
class FileDesc {
|
|
private:
|
|
PRFileDesc *fp;
|
|
|
|
public:
|
|
FileDesc(const char *fileName, PRWord flags, PRWord mode) {
|
|
fp = PR_Open(fileName, flags, mode);
|
|
}
|
|
|
|
void close() { if (fp) PR_Close(fp); fp = 0; }
|
|
~FileDesc() { close(); }
|
|
|
|
operator PRFileDesc * (void) { return fp; }
|
|
};
|
|
|
|
#endif /* _C_UTILS_H_ */
|
|
|