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/* 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_chararray(const void *ctx, const char *str, const size_t len)
{
const char *ptr;
char *ptr2;
char *out;
size_t loop;
size_t required;
for (loop = 0, required = 0, ptr = str;
loop < len;
loop++, required++, ptr++) {
if ((unsigned char)(*ptr) < 32 || *ptr == '\"' || *ptr == '\\')
required++;
}
/*
* + 3 for:
* - leading quotation mark,
* - trailing quotation mark,
* - trailing NULL.
*/
out = talloc_array (ctx, char, required + 3);
ptr = str;
ptr2 = out;
*ptr2++ = '\"';
for (loop = 0; loop < len; loop++) {
if ((unsigned char)(*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;
}
char *
json_quote_str(const void *ctx, const char *str)
{
if (str == NULL)
str = "";
return (json_quote_chararray (ctx, str, strlen (str)));
}