mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
129 lines
3 KiB
C
129 lines
3 KiB
C
/*
|
|
* Lightweight Embedded JSON Parser
|
|
*
|
|
* Copyright (C) 2013-2017 Andy Green <andy@warmcat.com>
|
|
*
|
|
* This library 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:
|
|
* version 2.1 of the License.
|
|
*
|
|
* This library 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 this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <libwebsockets.h>
|
|
#include <string.h>
|
|
|
|
|
|
static const char * const reason_names[] = {
|
|
"LEJPCB_CONSTRUCTED",
|
|
"LEJPCB_DESTRUCTED",
|
|
"LEJPCB_START",
|
|
"LEJPCB_COMPLETE",
|
|
"LEJPCB_FAILED",
|
|
"LEJPCB_PAIR_NAME",
|
|
"LEJPCB_VAL_TRUE",
|
|
"LEJPCB_VAL_FALSE",
|
|
"LEJPCB_VAL_NULL",
|
|
"LEJPCB_VAL_NUM_INT",
|
|
"LEJPCB_VAL_NUM_FLOAT",
|
|
"LEJPCB_VAL_STR_START",
|
|
"LEJPCB_VAL_STR_CHUNK",
|
|
"LEJPCB_VAL_STR_END",
|
|
"LEJPCB_ARRAY_START",
|
|
"LEJPCB_ARRAY_END",
|
|
"LEJPCB_OBJECT_START",
|
|
"LEJPCB_OBJECT_END",
|
|
"LEJPCB_OBJECT_END_PRE",
|
|
};
|
|
|
|
static const char * const tok[] = {
|
|
"dummy___"
|
|
};
|
|
|
|
static signed char
|
|
cb(struct lejp_ctx *ctx, char reason)
|
|
{
|
|
char buf[1024], *p = buf, *end = &buf[sizeof(buf)];
|
|
int n;
|
|
|
|
for (n = 0; n < ctx->sp; n++)
|
|
*p++ = ' ';
|
|
*p = '\0';
|
|
|
|
if (reason & LEJP_FLAG_CB_IS_VALUE) {
|
|
p += lws_snprintf(p, p - end, " value '%s' ", ctx->buf);
|
|
if (ctx->ipos) {
|
|
int n;
|
|
|
|
p += lws_snprintf(p, p - end, "(array indexes: ");
|
|
for (n = 0; n < ctx->ipos; n++)
|
|
p += lws_snprintf(p, p - end, "%d ", ctx->i[n]);
|
|
p += lws_snprintf(p, p - end, ") ");
|
|
}
|
|
lwsl_notice("%s (%s)\r\n", buf,
|
|
reason_names[(unsigned int)
|
|
(reason) & (LEJP_FLAG_CB_IS_VALUE - 1)]);
|
|
|
|
(void)reason_names; /* NO_LOGS... */
|
|
return 0;
|
|
}
|
|
|
|
switch (reason) {
|
|
case LEJPCB_COMPLETE:
|
|
lwsl_notice("%sParsing Completed (LEJPCB_COMPLETE)\n", buf);
|
|
break;
|
|
case LEJPCB_PAIR_NAME:
|
|
lwsl_notice("%spath: '%s' (LEJPCB_PAIR_NAME)\n", buf, ctx->path);
|
|
break;
|
|
}
|
|
|
|
lwsl_notice("%s%s: path %s match %d statckp %d\r\n", buf, reason_names[(unsigned int)
|
|
(reason) & (LEJP_FLAG_CB_IS_VALUE - 1)], ctx->path,
|
|
ctx->path_match, ctx->pst[ctx->pst_sp].ppos);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int fd, n = 1, ret = 1, m;
|
|
struct lejp_ctx ctx;
|
|
char buf[128];
|
|
|
|
lws_set_log_level(7, NULL);
|
|
|
|
lwsl_notice("libwebsockets-test-lejp (C) 2017 - 2018 andy@warmcat.com\n");
|
|
lwsl_notice(" usage: cat my.json | libwebsockets-test-lejp\n\n");
|
|
|
|
lejp_construct(&ctx, cb, NULL, tok, LWS_ARRAY_SIZE(tok));
|
|
|
|
fd = 0;
|
|
|
|
while (n > 0) {
|
|
n = read(fd, buf, sizeof(buf));
|
|
if (n <= 0)
|
|
continue;
|
|
|
|
m = lejp_parse(&ctx, (uint8_t *)buf, n);
|
|
if (m < 0 && m != LEJP_CONTINUE) {
|
|
lwsl_err("parse failed %d\n", m);
|
|
goto bail;
|
|
}
|
|
}
|
|
lwsl_notice("okay\n");
|
|
ret = 0;
|
|
bail:
|
|
lejp_destruct(&ctx);
|
|
|
|
return ret;
|
|
}
|