notmuch/json.c
Carl Worth cfa95eec27 json: Add copy of MIT license text from cJSON
When we incorporate external code, we should include its license,
(particularly when one of the terms of the license is to include it in
copies).
2010-02-23 12:50:46 -08:00

93 lines
3 KiB
C

/* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2009 Dave Gamble
* Copyright © 2009 Scott Robinson
*
* 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 http://www.gnu.org/licenses/ .
*
* Authors: Dave Gamble
* Scott Robinson <scott@quadhome.com>
*
*/
#include "notmuch-client.h"
/* This function was derived from the print_string_ptr function of
* cJSON (http://cjson.sourceforge.net/) and is used by permission of
* the following license:
*
* Copyright (c) 2009 Dave Gamble
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
char *
json_quote_str(const void *ctx, const char *str)
{
const char *ptr;
char *ptr2;
char *out;
int len = 0;
if (!str)
return NULL;
for (ptr = str; *ptr; len++, ptr++) {
if (*ptr < 32 || *ptr == '\"' || *ptr == '\\')
len++;
}
out = talloc_array (ctx, char, len + 3);
ptr = str;
ptr2 = out;
*ptr2++ = '\"';
while (*ptr) {
if (*ptr > 31 && *ptr != '\"' && *ptr != '\\') {
*ptr2++ = *ptr++;
} else {
*ptr2++ = '\\';
switch (*ptr++) {
case '\"': *ptr2++ = '\"'; break;
case '\\': *ptr2++ = '\\'; break;
case '\b': *ptr2++ = 'b'; break;
case '\f': *ptr2++ = 'f'; break;
case '\n': *ptr2++ = 'n'; break;
case '\r': *ptr2++ = 'r'; break;
case '\t': *ptr2++ = 't'; break;
default: ptr2--; break;
}
}
}
*ptr2++ = '\"';
*ptr2++ = '\0';
return out;
}