1/* Reentrant string tokenizer. Generic version. 2 Copyright (C) 1991,1996-1999,2001,2004 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20#include "../git-compat-util.h" 21 22/* Parse S into tokens separated by characters in DELIM. 23 If S is NULL, the saved pointer in SAVE_PTR is used as 24 the next starting point. For example: 25 char s[] = "-abc-=-def"; 26 char *sp; 27 x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" 28 x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL 29 x = strtok_r(NULL, "=", &sp); // x = NULL 30 // s = "abc\0-def\0" 31*/ 32char * 33gitstrtok_r (char *s, const char *delim, char **save_ptr) 34{ 35 char *token; 36 37 if (s == NULL) 38 s = *save_ptr; 39 40 /* Scan leading delimiters. */ 41 s += strspn (s, delim); 42 if (*s == '\0') 43 { 44 *save_ptr = s; 45 return NULL; 46 } 47 48 /* Find the end of the token. */ 49 token = s; 50 s = strpbrk (token, delim); 51 if (s == NULL) 52 /* This token finishes the string. */ 53 *save_ptr = token + strlen (token); 54 else 55 { 56 /* Terminate the token and make *SAVE_PTR point past it. */ 57 *s = '\0'; 58 *save_ptr = s + 1; 59 } 60 return token; 61}