Mercurial > ~mikael > mcabber > hg
comparison mcabber/mcabber/utils.c @ 2050:998feaa54ef0
Add ut_unescape_tabs_cr()
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Wed, 28 Nov 2012 17:55:03 +0100 |
| parents | 0ba755e5dc48 |
| children | 1210a22726d3 |
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| 2049:0ba755e5dc48 | 2050:998feaa54ef0 |
|---|---|
| 704 } while (*p++); | 704 } while (*p++); |
| 705 | 705 |
| 706 return xtext; | 706 return xtext; |
| 707 } | 707 } |
| 708 | 708 |
| 709 // ut_unescape_tabs_cr(text) | |
| 710 // Expand CR or TAB character sequences (\n, \t) in string text. | |
| 711 // If there is no CR/TAB in text, then the original pointer is returned | |
| 712 // (be careful _not_ to free the pointer in this case). | |
| 713 // If there are some unescaped sequences, a new string with those chars | |
| 714 // replaced with real newline/tab characters is allocated; in this case | |
| 715 // this is up to the caller to free this string after use. | |
| 716 char *ut_unescape_tabs_cr(const char *text) | |
| 717 { | |
| 718 char *xtext, *linestart; | |
| 719 char *p, *q; | |
| 720 | |
| 721 if (!text) | |
| 722 return NULL; | |
| 723 | |
| 724 p = g_strstr_len(text, -1, "\\n"); | |
| 725 if (!p) { | |
| 726 p = g_strstr_len(text, -1, "\\t"); | |
| 727 if (!p) | |
| 728 return (char*)text; | |
| 729 } | |
| 730 | |
| 731 xtext = g_new(char, strlen(text) + 1); | |
| 732 p = (char*)text; | |
| 733 q = linestart = xtext; | |
| 734 do { | |
| 735 if (*p == '\\') { | |
| 736 if (*(p+1) == '\\' && (*(p+2) == 'n' || *(p+2) == 't')) { | |
| 737 // This is an escaped CR sequence | |
| 738 *q++ = '\\'; | |
| 739 *q++ = 'n'; | |
| 740 p += 2; | |
| 741 continue; | |
| 742 } | |
| 743 if (*(p+1) == 'n' || *(p+1) == 't') { | |
| 744 // This is a CR sequence | |
| 745 p++; | |
| 746 *q++ = (*p == 'n' ? '\n' : '\t'); | |
| 747 continue; | |
| 748 } | |
| 749 } | |
| 750 *q++ = *p; | |
| 751 } while (*p++); | |
| 752 | |
| 753 return xtext; | |
| 754 } | |
| 755 | |
| 709 | 756 |
| 710 /* Cygwin's newlib does not have strcasestr() */ | 757 /* Cygwin's newlib does not have strcasestr() */ |
| 711 /* The author of the code before the endif is | 758 /* The author of the code before the endif is |
| 712 * Jeffrey Stedfast <fejj@ximian.com> | 759 * Jeffrey Stedfast <fejj@ximian.com> |
| 713 * and this code is reusable in compliance with the GPL v2. -- somian */ | 760 * and this code is reusable in compliance with the GPL v2. -- somian */ |