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Diffstat (limited to 'lib/src/unescape.c')
-rw-r--r-- | lib/src/unescape.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/lib/src/unescape.c b/lib/src/unescape.c deleted file mode 100644 index 2d48c92..0000000 --- a/lib/src/unescape.c +++ /dev/null @@ -1,94 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * Copyright (C) 2018 - David Oberhollenzer - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ -#include <stdlib.h> -#include <ctype.h> -#include <errno.h> - -#include "util.h" - -static int xdigit(int x) -{ - if (isupper(x)) - return x - 'A' + 0x0A; - if (islower(x)) - return x - 'a' + 0x0A; - return x - '0'; -} - -int unescape(char *src) -{ - char *dst = src; - int c; - - for (;;) { - while (*src != '"' && *src != '\0') - *(dst++) = *(src++); - - if (*src == '\0') - break; - - ++src; - - while ((c = *(src++)) != '"') { - if (c == '\0') - return -1; - - if (c == '\\') { - c = *(src++); - - switch (c) { - case 'a': c = '\a'; break; - case 'b': c = '\b'; break; - case 'f': c = '\f'; break; - case 'n': c = '\n'; break; - case 't': c = '\t'; break; - case '\\': - case '"': - case '%': - break; - case 'x': - c = 0; - if (isxdigit(*src)) - c = (c<<4) | xdigit(*(src++)); - if (isxdigit(*src)) - c = (c<<4) | xdigit(*(src++)); - break; - case '0': - c = 0; - if (isdigit(*src) && *src < '8') - c = (c<<3) | (*(src++) - '0'); - if (isdigit(*src) && *src < '8') - c = (c<<3) | (*(src++) - '0'); - if (isdigit(*src) && *src < '8') - c = (c<<3) | (*(src++) - '0'); - break; - default: - return -1; - } - - if (c == 0) - return -1; - } - - *(dst++) = c; - } - } - - *(dst++) = '\0'; - return 0; -} |