diff options
Diffstat (limited to 'src/shared/xml.c')
| -rw-r--r-- | src/shared/xml.c | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/src/shared/xml.c b/src/shared/xml.c deleted file mode 100644 index 15c629b188..0000000000 --- a/src/shared/xml.c +++ /dev/null @@ -1,254 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2013 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <string.h> - -#include "util.h" -#include "xml.h" - -enum { - STATE_NULL, - STATE_TEXT, - STATE_TAG, - STATE_ATTRIBUTE, -}; - -static void inc_lines(unsigned *line, const char *s, size_t n) { - const char *p = s; - - if (!line) - return; - - for (;;) { - const char *f; - - f = memchr(p, '\n', n); - if (!f) - return; - - n -= (f - p) + 1; - p = f + 1; - (*line)++; - } -} - -/* We don't actually do real XML here. We only read a simplistic - * subset, that is a bit less strict that XML and lacks all the more - * complex features, like entities, or namespaces. However, we do - * support some HTML5-like simplifications */ - -int xml_tokenize(const char **p, char **name, void **state, unsigned *line) { - const char *c, *e, *b; - char *ret; - int t; - - assert(p); - assert(*p); - assert(name); - assert(state); - - t = PTR_TO_INT(*state); - c = *p; - - if (t == STATE_NULL) { - if (line) - *line = 1; - t = STATE_TEXT; - } - - for (;;) { - if (*c == 0) - return XML_END; - - switch (t) { - - case STATE_TEXT: { - int x; - - e = strchrnul(c, '<'); - if (e > c) { - /* More text... */ - ret = strndup(c, e - c); - if (!ret) - return -ENOMEM; - - inc_lines(line, c, e - c); - - *name = ret; - *p = e; - *state = INT_TO_PTR(STATE_TEXT); - - return XML_TEXT; - } - - assert(*e == '<'); - b = c + 1; - - if (startswith(b, "!--")) { - /* A comment */ - e = strstr(b + 3, "-->"); - if (!e) - return -EINVAL; - - inc_lines(line, b, e + 3 - b); - - c = e + 3; - continue; - } - - if (*b == '?') { - /* Processing instruction */ - - e = strstr(b + 1, "?>"); - if (!e) - return -EINVAL; - - inc_lines(line, b, e + 2 - b); - - c = e + 2; - continue; - } - - if (*b == '!') { - /* DTD */ - - e = strchr(b + 1, '>'); - if (!e) - return -EINVAL; - - inc_lines(line, b, e + 1 - b); - - c = e + 1; - continue; - } - - if (*b == '/') { - /* A closing tag */ - x = XML_TAG_CLOSE; - b++; - } else - x = XML_TAG_OPEN; - - e = strpbrk(b, WHITESPACE "/>"); - if (!e) - return -EINVAL; - - ret = strndup(b, e - b); - if (!ret) - return -ENOMEM; - - *name = ret; - *p = e; - *state = INT_TO_PTR(STATE_TAG); - - return x; - } - - case STATE_TAG: - - b = c + strspn(c, WHITESPACE); - if (*b == 0) - return -EINVAL; - - inc_lines(line, c, b - c); - - e = b + strcspn(b, WHITESPACE "=/>"); - if (e > b) { - /* An attribute */ - - ret = strndup(b, e - b); - if (!ret) - return -ENOMEM; - - *name = ret; - *p = e; - *state = INT_TO_PTR(STATE_ATTRIBUTE); - - return XML_ATTRIBUTE_NAME; - } - - if (startswith(b, "/>")) { - /* An empty tag */ - - *name = NULL; /* For empty tags we return a NULL name, the caller must be prepared for that */ - *p = b + 2; - *state = INT_TO_PTR(STATE_TEXT); - - return XML_TAG_CLOSE_EMPTY; - } - - if (*b != '>') - return -EINVAL; - - c = b + 1; - t = STATE_TEXT; - continue; - - case STATE_ATTRIBUTE: - - if (*c == '=') { - c++; - - if (*c == '\'' || *c == '\"') { - /* Tag with a quoted value */ - - e = strchr(c+1, *c); - if (!e) - return -EINVAL; - - inc_lines(line, c, e - c); - - ret = strndup(c+1, e - c - 1); - if (!ret) - return -ENOMEM; - - *name = ret; - *p = e + 1; - *state = INT_TO_PTR(STATE_TAG); - - return XML_ATTRIBUTE_VALUE; - - } - - /* Tag with a value without quotes */ - - b = strpbrk(c, WHITESPACE ">"); - if (!b) - b = c; - - ret = strndup(c, b - c); - if (!ret) - return -ENOMEM; - - *name = ret; - *p = b; - *state = INT_TO_PTR(STATE_TAG); - return XML_ATTRIBUTE_VALUE; - } - - t = STATE_TAG; - continue; - } - - } - - assert_not_reached("Bad state"); -} |