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/*
* Copyright 2010, R. Tyler Ballance <tyler@monkeypox.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. Neither the name of R. Tyler Ballance nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <yajl_encode.h>
/*
* This code was yanked largely from yajl_gen.c
* it is merely a set of hacks
*/
typedef enum {
yajl_gen_start,
yajl_gen_map_start,
yajl_gen_map_key,
yajl_gen_map_val,
yajl_gen_array_start,
yajl_gen_in_array,
yajl_gen_complete,
yajl_gen_error
} yajl_gen_state;
struct yajl_gen_t
{
unsigned int depth;
unsigned int pretty;
const char * indentString;
yajl_gen_state state[YAJL_MAX_DEPTH];
yajl_print_t print;
void * ctx; /* yajl_buf */
/* memory allocation routines */
yajl_alloc_funcs alloc;
};
#define INSERT_SEP \
if (g->state[g->depth] == yajl_gen_map_key || \
g->state[g->depth] == yajl_gen_in_array) { \
g->print(g->ctx, ",", 1); \
if (g->pretty) g->print(g->ctx, "\n", 1); \
} else if (g->state[g->depth] == yajl_gen_map_val) { \
g->print(g->ctx, ":", 1); \
if (g->pretty) g->print(g->ctx, " ", 1); \
}
#define INSERT_WHITESPACE \
if (g->pretty) { \
if (g->state[g->depth] != yajl_gen_map_val) { \
unsigned int _i; \
for (_i=0;_i<g->depth;_i++) \
g->print(g->ctx, g->indentString, \
strlen(g->indentString)); \
} \
}
/* check that we're not complete, or in error state. in a valid state
* to be generating */
#define ENSURE_VALID_STATE \
if (g->state[g->depth] == yajl_gen_error) { \
return yajl_gen_in_error_state;\
} else if (g->state[g->depth] == yajl_gen_complete) { \
return yajl_gen_generation_complete; \
}
#define APPENDED_ATOM \
switch (g->state[g->depth]) { \
case yajl_gen_start: \
g->state[g->depth] = yajl_gen_complete; \
break; \
case yajl_gen_map_start: \
case yajl_gen_map_key: \
g->state[g->depth] = yajl_gen_map_val; \
break; \
case yajl_gen_array_start: \
g->state[g->depth] = yajl_gen_in_array; \
break; \
case yajl_gen_map_val: \
g->state[g->depth] = yajl_gen_map_key; \
break; \
default: \
break; \
} \
#define FINAL_NEWLINE \
if (g->pretty && g->state[g->depth] == yajl_gen_complete) \
g->print(g->ctx, "\n", 1);
yajl_gen_status yajl_gen_raw_string(yajl_gen g, const unsigned char * str, unsigned int len)
{
ENSURE_VALID_STATE; INSERT_SEP; INSERT_WHITESPACE;
g->print(g->ctx, "\"", 1);
g->print(g->ctx, str, len);
g->print(g->ctx, "\"", 1);
APPENDED_ATOM;
FINAL_NEWLINE;
return yajl_gen_status_ok;
}
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