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Add jsmn to deps

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This commit is contained in:
Andrew Pamment 2017-03-19 13:39:03 +10:00
parent 923d242bac
commit e35438782a
12 changed files with 1359 additions and 1 deletions
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5
bbs.c
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@ -46,6 +46,7 @@ void sigint_handler(int s)
// do nothing... // do nothing...
} }
void broadcast(char *mess, ...) { void broadcast(char *mess, ...) {
char json[1024];
char buffer[512]; char buffer[512];
struct sockaddr_in s; struct sockaddr_in s;
int bcast_sock; int bcast_sock;
@ -75,7 +76,9 @@ void broadcast(char *mess, ...) {
vsnprintf(buffer, 512, mess, ap); vsnprintf(buffer, 512, mess, ap);
va_end(ap); va_end(ap);
ret = sendto(bcast_sock, buffer, strlen(buffer) + 1, 0, (struct sockaddr *)&s, sizeof(struct sockaddr_in)); snprintf(json, "{\"System\": \"%s\", \"Program\": \"MagickaBBS\", \"Message\": \"%s\"}", conf.bbs_name, buffer);
ret = sendto(bcast_sock, json, strlen(json) + 1, 0, (struct sockaddr *)&s, sizeof(struct sockaddr_in));
if (ret < 0) { if (ret < 0) {
dolog("broadcast: Couldn't send broadcast"); dolog("broadcast: Couldn't send broadcast");

20
deps/jsmn/LICENSE vendored Normal file
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@ -0,0 +1,20 @@
Copyright (c) 2010 Serge A. Zaitsev
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.

41
deps/jsmn/Makefile vendored Normal file
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@ -0,0 +1,41 @@
# You can put your build options here
-include config.mk
all: libjsmn.a
libjsmn.a: jsmn.o
$(AR) rc $@ $^
%.o: %.c jsmn.h
$(CC) -c $(CFLAGS) $< -o $@
test: test_default test_strict test_links test_strict_links
test_default: test/tests.c
$(CC) $(CFLAGS) $(LDFLAGS) $< -o test/$@
./test/$@
test_strict: test/tests.c
$(CC) -DJSMN_STRICT=1 $(CFLAGS) $(LDFLAGS) $< -o test/$@
./test/$@
test_links: test/tests.c
$(CC) -DJSMN_PARENT_LINKS=1 $(CFLAGS) $(LDFLAGS) $< -o test/$@
./test/$@
test_strict_links: test/tests.c
$(CC) -DJSMN_STRICT=1 -DJSMN_PARENT_LINKS=1 $(CFLAGS) $(LDFLAGS) $< -o test/$@
./test/$@
jsmn_test.o: jsmn_test.c libjsmn.a
simple_example: example/simple.o libjsmn.a
$(CC) $(LDFLAGS) $^ -o $@
jsondump: example/jsondump.o libjsmn.a
$(CC) $(LDFLAGS) $^ -o $@
clean:
rm -f *.o example/*.o
rm -f *.a *.so
rm -f simple_example
rm -f jsondump
.PHONY: all clean test

167
deps/jsmn/README.md vendored Normal file
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@ -0,0 +1,167 @@
JSMN
====
jsmn (pronounced like 'jasmine') is a minimalistic JSON parser in C. It can be
easily integrated into resource-limited or embedded projects.
You can find more information about JSON format at [json.org][1]
Library sources are available at https://github.com/zserge/jsmn
The web page with some information about jsmn can be found at
[http://zserge.com/jsmn.html][2]
Philosophy
----------
Most JSON parsers offer you a bunch of functions to load JSON data, parse it
and extract any value by its name. jsmn proves that checking the correctness of
every JSON packet or allocating temporary objects to store parsed JSON fields
often is an overkill.
JSON format itself is extremely simple, so why should we complicate it?
jsmn is designed to be **robust** (it should work fine even with erroneous
data), **fast** (it should parse data on the fly), **portable** (no superfluous
dependencies or non-standard C extensions). And of course, **simplicity** is a
key feature - simple code style, simple algorithm, simple integration into
other projects.
Features
--------
* compatible with C89
* no dependencies (even libc!)
* highly portable (tested on x86/amd64, ARM, AVR)
* about 200 lines of code
* extremely small code footprint
* API contains only 2 functions
* no dynamic memory allocation
* incremental single-pass parsing
* library code is covered with unit-tests
Design
------
The rudimentary jsmn object is a **token**. Let's consider a JSON string:
'{ "name" : "Jack", "age" : 27 }'
It holds the following tokens:
* Object: `{ "name" : "Jack", "age" : 27}` (the whole object)
* Strings: `"name"`, `"Jack"`, `"age"` (keys and some values)
* Number: `27`
In jsmn, tokens do not hold any data, but point to token boundaries in JSON
string instead. In the example above jsmn will create tokens like: Object
[0..31], String [3..7], String [12..16], String [20..23], Number [27..29].
Every jsmn token has a type, which indicates the type of corresponding JSON
token. jsmn supports the following token types:
* Object - a container of key-value pairs, e.g.:
`{ "foo":"bar", "x":0.3 }`
* Array - a sequence of values, e.g.:
`[ 1, 2, 3 ]`
* String - a quoted sequence of chars, e.g.: `"foo"`
* Primitive - a number, a boolean (`true`, `false`) or `null`
Besides start/end positions, jsmn tokens for complex types (like arrays
or objects) also contain a number of child items, so you can easily follow
object hierarchy.
This approach provides enough information for parsing any JSON data and makes
it possible to use zero-copy techniques.
Install
-------
To clone the repository you should have Git installed. Just run:
$ git clone https://github.com/zserge/jsmn
Repository layout is simple: jsmn.c and jsmn.h are library files, tests are in
the jsmn\_test.c, you will also find README, LICENSE and Makefile files inside.
To build the library, run `make`. It is also recommended to run `make test`.
Let me know, if some tests fail.
If build was successful, you should get a `libjsmn.a` library.
The header file you should include is called `"jsmn.h"`.
API
---
Token types are described by `jsmntype_t`:
typedef enum {
JSMN_UNDEFINED = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3,
JSMN_PRIMITIVE = 4
} jsmntype_t;
**Note:** Unlike JSON data types, primitive tokens are not divided into
numbers, booleans and null, because one can easily tell the type using the
first character:
* <code>'t', 'f'</code> - boolean
* <code>'n'</code> - null
* <code>'-', '0'..'9'</code> - number
Token is an object of `jsmntok_t` type:
typedef struct {
jsmntype_t type; // Token type
int start; // Token start position
int end; // Token end position
int size; // Number of child (nested) tokens
} jsmntok_t;
**Note:** string tokens point to the first character after
the opening quote and the previous symbol before final quote. This was made
to simplify string extraction from JSON data.
All job is done by `jsmn_parser` object. You can initialize a new parser using:
jsmn_parser parser;
jsmntok_t tokens[10];
jsmn_init(&parser);
// js - pointer to JSON string
// tokens - an array of tokens available
// 10 - number of tokens available
jsmn_parse(&parser, js, strlen(js), tokens, 10);
This will create a parser, and then it tries to parse up to 10 JSON tokens from
the `js` string.
A non-negative return value of `jsmn_parse` is the number of tokens actually
used by the parser.
Passing NULL instead of the tokens array would not store parsing results, but
instead the function will return the value of tokens needed to parse the given
string. This can be useful if you don't know yet how many tokens to allocate.
If something goes wrong, you will get an error. Error will be one of these:
* `JSMN_ERROR_INVAL` - bad token, JSON string is corrupted
* `JSMN_ERROR_NOMEM` - not enough tokens, JSON string is too large
* `JSMN_ERROR_PART` - JSON string is too short, expecting more JSON data
If you get `JSON_ERROR_NOMEM`, you can re-allocate more tokens and call
`jsmn_parse` once more. If you read json data from the stream, you can
periodically call `jsmn_parse` and check if return value is `JSON_ERROR_PART`.
You will get this error until you reach the end of JSON data.
Other info
----------
This software is distributed under [MIT license](http://www.opensource.org/licenses/mit-license.php),
so feel free to integrate it in your commercial products.
[1]: http://www.json.org/
[2]: http://zserge.com/jsmn.html

126
deps/jsmn/example/jsondump.c vendored Normal file
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@ -0,0 +1,126 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "../jsmn.h"
/* Function realloc_it() is a wrapper function for standart realloc()
* with one difference - it frees old memory pointer in case of realloc
* failure. Thus, DO NOT use old data pointer in anyway after call to
* realloc_it(). If your code has some kind of fallback algorithm if
* memory can't be re-allocated - use standart realloc() instead.
*/
static inline void *realloc_it(void *ptrmem, size_t size) {
void *p = realloc(ptrmem, size);
if (!p) {
free (ptrmem);
fprintf(stderr, "realloc(): errno=%d\n", errno);
}
return p;
}
/*
* An example of reading JSON from stdin and printing its content to stdout.
* The output looks like YAML, but I'm not sure if it's really compatible.
*/
static int dump(const char *js, jsmntok_t *t, size_t count, int indent) {
int i, j, k;
if (count == 0) {
return 0;
}
if (t->type == JSMN_PRIMITIVE) {
printf("%.*s", t->end - t->start, js+t->start);
return 1;
} else if (t->type == JSMN_STRING) {
printf("'%.*s'", t->end - t->start, js+t->start);
return 1;
} else if (t->type == JSMN_OBJECT) {
printf("\n");
j = 0;
for (i = 0; i < t->size; i++) {
for (k = 0; k < indent; k++) printf(" ");
j += dump(js, t+1+j, count-j, indent+1);
printf(": ");
j += dump(js, t+1+j, count-j, indent+1);
printf("\n");
}
return j+1;
} else if (t->type == JSMN_ARRAY) {
j = 0;
printf("\n");
for (i = 0; i < t->size; i++) {
for (k = 0; k < indent-1; k++) printf(" ");
printf(" - ");
j += dump(js, t+1+j, count-j, indent+1);
printf("\n");
}
return j+1;
}
return 0;
}
int main() {
int r;
int eof_expected = 0;
char *js = NULL;
size_t jslen = 0;
char buf[BUFSIZ];
jsmn_parser p;
jsmntok_t *tok;
size_t tokcount = 2;
/* Prepare parser */
jsmn_init(&p);
/* Allocate some tokens as a start */
tok = malloc(sizeof(*tok) * tokcount);
if (tok == NULL) {
fprintf(stderr, "malloc(): errno=%d\n", errno);
return 3;
}
for (;;) {
/* Read another chunk */
r = fread(buf, 1, sizeof(buf), stdin);
if (r < 0) {
fprintf(stderr, "fread(): %d, errno=%d\n", r, errno);
return 1;
}
if (r == 0) {
if (eof_expected != 0) {
return 0;
} else {
fprintf(stderr, "fread(): unexpected EOF\n");
return 2;
}
}
js = realloc_it(js, jslen + r + 1);
if (js == NULL) {
return 3;
}
strncpy(js + jslen, buf, r);
jslen = jslen + r;
again:
r = jsmn_parse(&p, js, jslen, tok, tokcount);
if (r < 0) {
if (r == JSMN_ERROR_NOMEM) {
tokcount = tokcount * 2;
tok = realloc_it(tok, sizeof(*tok) * tokcount);
if (tok == NULL) {
return 3;
}
goto again;
}
} else {
dump(js, tok, p.toknext, 0);
eof_expected = 1;
}
}
return EXIT_SUCCESS;
}

76
deps/jsmn/example/simple.c vendored Normal file
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@ -0,0 +1,76 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../jsmn.h"
/*
* A small example of jsmn parsing when JSON structure is known and number of
* tokens is predictable.
*/
static const char *JSON_STRING =
"{\"user\": \"johndoe\", \"admin\": false, \"uid\": 1000,\n "
"\"groups\": [\"users\", \"wheel\", \"audio\", \"video\"]}";
static int jsoneq(const char *json, jsmntok_t *tok, const char *s) {
if (tok->type == JSMN_STRING && (int) strlen(s) == tok->end - tok->start &&
strncmp(json + tok->start, s, tok->end - tok->start) == 0) {
return 0;
}
return -1;
}
int main() {
int i;
int r;
jsmn_parser p;
jsmntok_t t[128]; /* We expect no more than 128 tokens */
jsmn_init(&p);
r = jsmn_parse(&p, JSON_STRING, strlen(JSON_STRING), t, sizeof(t)/sizeof(t[0]));
if (r < 0) {
printf("Failed to parse JSON: %d\n", r);
return 1;
}
/* Assume the top-level element is an object */
if (r < 1 || t[0].type != JSMN_OBJECT) {
printf("Object expected\n");
return 1;
}
/* Loop over all keys of the root object */
for (i = 1; i < r; i++) {
if (jsoneq(JSON_STRING, &t[i], "user") == 0) {
/* We may use strndup() to fetch string value */
printf("- User: %.*s\n", t[i+1].end-t[i+1].start,
JSON_STRING + t[i+1].start);
i++;
} else if (jsoneq(JSON_STRING, &t[i], "admin") == 0) {
/* We may additionally check if the value is either "true" or "false" */
printf("- Admin: %.*s\n", t[i+1].end-t[i+1].start,
JSON_STRING + t[i+1].start);
i++;
} else if (jsoneq(JSON_STRING, &t[i], "uid") == 0) {
/* We may want to do strtol() here to get numeric value */
printf("- UID: %.*s\n", t[i+1].end-t[i+1].start,
JSON_STRING + t[i+1].start);
i++;
} else if (jsoneq(JSON_STRING, &t[i], "groups") == 0) {
int j;
printf("- Groups:\n");
if (t[i+1].type != JSMN_ARRAY) {
continue; /* We expect groups to be an array of strings */
}
for (j = 0; j < t[i+1].size; j++) {
jsmntok_t *g = &t[i+j+2];
printf(" * %.*s\n", g->end - g->start, JSON_STRING + g->start);
}
i += t[i+1].size + 1;
} else {
printf("Unexpected key: %.*s\n", t[i].end-t[i].start,
JSON_STRING + t[i].start);
}
}
return EXIT_SUCCESS;
}

314
deps/jsmn/jsmn.c vendored Normal file
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#include "jsmn.h"
/**
* Allocates a fresh unused token from the token pull.
*/
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *tok;
if (parser->toknext >= num_tokens) {
return NULL;
}
tok = &tokens[parser->toknext++];
tok->start = tok->end = -1;
tok->size = 0;
#ifdef JSMN_PARENT_LINKS
tok->parent = -1;
#endif
return tok;
}
/**
* Fills token type and boundaries.
*/
static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
int start, int end) {
token->type = type;
token->start = start;
token->end = end;
token->size = 0;
}
/**
* Fills next available token with JSON primitive.
*/
static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
size_t len, jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *token;
int start;
start = parser->pos;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
switch (js[parser->pos]) {
#ifndef JSMN_STRICT
/* In strict mode primitive must be followed by "," or "}" or "]" */
case ':':
#endif
case '\t' : case '\r' : case '\n' : case ' ' :
case ',' : case ']' : case '}' :
goto found;
}
if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
#ifdef JSMN_STRICT
/* In strict mode primitive must be followed by a comma/object/array */
parser->pos = start;
return JSMN_ERROR_PART;
#endif
found:
if (tokens == NULL) {
parser->pos--;
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
parser->pos--;
return 0;
}
/**
* Fills next token with JSON string.
*/
static int jsmn_parse_string(jsmn_parser *parser, const char *js,
size_t len, jsmntok_t *tokens, size_t num_tokens) {
jsmntok_t *token;
int start = parser->pos;
parser->pos++;
/* Skip starting quote */
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c = js[parser->pos];
/* Quote: end of string */
if (c == '\"') {
if (tokens == NULL) {
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
return 0;
}
/* Backslash: Quoted symbol expected */
if (c == '\\' && parser->pos + 1 < len) {
int i;
parser->pos++;
switch (js[parser->pos]) {
/* Allowed escaped symbols */
case '\"': case '/' : case '\\' : case 'b' :
case 'f' : case 'r' : case 'n' : case 't' :
break;
/* Allows escaped symbol \uXXXX */
case 'u':
parser->pos++;
for(i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) {
/* If it isn't a hex character we have an error */
if(!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
(js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
parser->pos = start;
return JSMN_ERROR_INVAL;
}
parser->pos++;
}
parser->pos--;
break;
/* Unexpected symbol */
default:
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
}
parser->pos = start;
return JSMN_ERROR_PART;
}
/**
* Parse JSON string and fill tokens.
*/
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens) {
int r;
int i;
jsmntok_t *token;
int count = parser->toknext;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c;
jsmntype_t type;
c = js[parser->pos];
switch (c) {
case '{': case '[':
count++;
if (tokens == NULL) {
break;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL)
return JSMN_ERROR_NOMEM;
if (parser->toksuper != -1) {
tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
}
token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
token->start = parser->pos;
parser->toksuper = parser->toknext - 1;
break;
case '}': case ']':
if (tokens == NULL)
break;
type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
#ifdef JSMN_PARENT_LINKS
if (parser->toknext < 1) {
return JSMN_ERROR_INVAL;
}
token = &tokens[parser->toknext - 1];
for (;;) {
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
token->end = parser->pos + 1;
parser->toksuper = token->parent;
break;
}
if (token->parent == -1) {
if(token->type != type || parser->toksuper == -1) {
return JSMN_ERROR_INVAL;
}
break;
}
token = &tokens[token->parent];
}
#else
for (i = parser->toknext - 1; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
parser->toksuper = -1;
token->end = parser->pos + 1;
break;
}
}
/* Error if unmatched closing bracket */
if (i == -1) return JSMN_ERROR_INVAL;
for (; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
parser->toksuper = i;
break;
}
}
#endif
break;
case '\"':
r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
tokens[parser->toksuper].size++;
break;
case '\t' : case '\r' : case '\n' : case ' ':
break;
case ':':
parser->toksuper = parser->toknext - 1;
break;
case ',':
if (tokens != NULL && parser->toksuper != -1 &&
tokens[parser->toksuper].type != JSMN_ARRAY &&
tokens[parser->toksuper].type != JSMN_OBJECT) {
#ifdef JSMN_PARENT_LINKS
parser->toksuper = tokens[parser->toksuper].parent;
#else
for (i = parser->toknext - 1; i >= 0; i--) {
if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
if (tokens[i].start != -1 && tokens[i].end == -1) {
parser->toksuper = i;
break;
}
}
}
#endif
}
break;
#ifdef JSMN_STRICT
/* In strict mode primitives are: numbers and booleans */
case '-': case '0': case '1' : case '2': case '3' : case '4':
case '5': case '6': case '7' : case '8': case '9':
case 't': case 'f': case 'n' :
/* And they must not be keys of the object */
if (tokens != NULL && parser->toksuper != -1) {
jsmntok_t *t = &tokens[parser->toksuper];
if (t->type == JSMN_OBJECT ||
(t->type == JSMN_STRING && t->size != 0)) {
return JSMN_ERROR_INVAL;
}
}
#else
/* In non-strict mode every unquoted value is a primitive */
default:
#endif
r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
if (r < 0) return r;
count++;
if (parser->toksuper != -1 && tokens != NULL)
tokens[parser->toksuper].size++;
break;
#ifdef JSMN_STRICT
/* Unexpected char in strict mode */
default:
return JSMN_ERROR_INVAL;
#endif
}
}
if (tokens != NULL) {
for (i = parser->toknext - 1; i >= 0; i--) {
/* Unmatched opened object or array */
if (tokens[i].start != -1 && tokens[i].end == -1) {
return JSMN_ERROR_PART;
}
}
}
return count;
}
/**
* Creates a new parser based over a given buffer with an array of tokens
* available.
*/
void jsmn_init(jsmn_parser *parser) {
parser->pos = 0;
parser->toknext = 0;
parser->toksuper = -1;
}

76
deps/jsmn/jsmn.h vendored Normal file
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#ifndef __JSMN_H_
#define __JSMN_H_
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_UNDEFINED = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3,
JSMN_PRIMITIVE = 4
} jsmntype_t;
enum jsmnerr {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3
};
/**
* JSON token description.
* type type (object, array, string etc.)
* start start position in JSON data string
* end end position in JSON data string
*/
typedef struct {
jsmntype_t type;
int start;
int end;
int size;
#ifdef JSMN_PARENT_LINKS
int parent;
#endif
} jsmntok_t;
/**
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string
*/
typedef struct {
unsigned int pos; /* offset in the JSON string */
unsigned int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;
/**
* Create JSON parser over an array of tokens
*/
void jsmn_init(jsmn_parser *parser);
/**
* Run JSON parser. It parses a JSON data string into and array of tokens, each describing
* a single JSON object.
*/
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens);
#ifdef __cplusplus
}
#endif
#endif /* __JSMN_H_ */

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{
"name": "jsmn",
"keywords": "json",
"description": "Minimalistic JSON parser/tokenizer in C. It can be easily integrated into resource-limited or embedded projects",
"repository":
{
"type": "git",
"url": "https://github.com/zserge/jsmn.git"
},
"frameworks": "*",
"platforms": "*",
"examples": [
"example/*.c"
],
"exclude": "test"
}

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#ifndef __TEST_H__
#define __TEST_H__
static int test_passed = 0;
static int test_failed = 0;
/* Terminate current test with error */
#define fail() return __LINE__
/* Successful end of the test case */
#define done() return 0
/* Check single condition */
#define check(cond) do { if (!(cond)) fail(); } while (0)
/* Test runner */
static void test(int (*func)(void), const char *name) {
int r = func();
if (r == 0) {
test_passed++;
} else {
test_failed++;
printf("FAILED: %s (at line %d)\n", name, r);
}
}
#endif /* __TEST_H__ */

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "test.h"
#include "testutil.h"
int test_empty(void) {
check(parse("{}", 1, 1,
JSMN_OBJECT, 0, 2, 0));
check(parse("[]", 1, 1,
JSMN_ARRAY, 0, 2, 0));
check(parse("[{},{}]", 3, 3,
JSMN_ARRAY, 0, 7, 2,
JSMN_OBJECT, 1, 3, 0,
JSMN_OBJECT, 4, 6, 0));
return 0;
}
int test_object(void) {
check(parse("{\"a\":0}", 3, 3,
JSMN_OBJECT, 0, 7, 1,
JSMN_STRING, "a", 1,
JSMN_PRIMITIVE, "0"));
check(parse("{\"a\":[]}", 3, 3,
JSMN_OBJECT, 0, 8, 1,
JSMN_STRING, "a", 1,
JSMN_ARRAY, 5, 7, 0));
check(parse("{\"a\":{},\"b\":{}}", 5, 5,
JSMN_OBJECT, -1, -1, 2,
JSMN_STRING, "a", 1,
JSMN_OBJECT, -1, -1, 0,
JSMN_STRING, "b", 1,
JSMN_OBJECT, -1, -1, 0));
check(parse("{\n \"Day\": 26,\n \"Month\": 9,\n \"Year\": 12\n }", 7, 7,
JSMN_OBJECT, -1, -1, 3,
JSMN_STRING, "Day", 1,
JSMN_PRIMITIVE, "26",
JSMN_STRING, "Month", 1,
JSMN_PRIMITIVE, "9",
JSMN_STRING, "Year", 1,
JSMN_PRIMITIVE, "12"));
check(parse("{\"a\": 0, \"b\": \"c\"}", 5, 5,
JSMN_OBJECT, -1, -1, 2,
JSMN_STRING, "a", 1,
JSMN_PRIMITIVE, "0",
JSMN_STRING, "b", 1,
JSMN_STRING, "c", 0));
#ifdef JSMN_STRICT
check(parse("{\"a\"\n0}", JSMN_ERROR_INVAL, 3));
check(parse("{\"a\", 0}", JSMN_ERROR_INVAL, 3));
check(parse("{\"a\": {2}}", JSMN_ERROR_INVAL, 3));
check(parse("{\"a\": {2: 3}}", JSMN_ERROR_INVAL, 3));
check(parse("{\"a\": {\"a\": 2 3}}", JSMN_ERROR_INVAL, 5));
/* FIXME */
/*check(parse("{\"a\"}", JSMN_ERROR_INVAL, 2));*/
/*check(parse("{\"a\": 1, \"b\"}", JSMN_ERROR_INVAL, 4));*/
/*check(parse("{\"a\",\"b\":1}", JSMN_ERROR_INVAL, 4));*/
/*check(parse("{\"a\":1,}", JSMN_ERROR_INVAL, 4));*/
/*check(parse("{\"a\":\"b\":\"c\"}", JSMN_ERROR_INVAL, 4));*/
/*check(parse("{,}", JSMN_ERROR_INVAL, 4));*/
#endif
return 0;
}
int test_array(void) {
/* FIXME */
/*check(parse("[10}", JSMN_ERROR_INVAL, 3));*/
/*check(parse("[1,,3]", JSMN_ERROR_INVAL, 3)*/
check(parse("[10]", 2, 2,
JSMN_ARRAY, -1, -1, 1,
JSMN_PRIMITIVE, "10"));
check(parse("{\"a\": 1]", JSMN_ERROR_INVAL, 3));
/* FIXME */
/*check(parse("[\"a\": 1]", JSMN_ERROR_INVAL, 3));*/
return 0;
}
int test_primitive(void) {
check(parse("{\"boolVar\" : true }", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "boolVar", 1,
JSMN_PRIMITIVE, "true"));
check(parse("{\"boolVar\" : false }", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "boolVar", 1,
JSMN_PRIMITIVE, "false"));
check(parse("{\"nullVar\" : null }", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "nullVar", 1,
JSMN_PRIMITIVE, "null"));
check(parse("{\"intVar\" : 12}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "intVar", 1,
JSMN_PRIMITIVE, "12"));
check(parse("{\"floatVar\" : 12.345}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "floatVar", 1,
JSMN_PRIMITIVE, "12.345"));
return 0;
}
int test_string(void) {
check(parse("{\"strVar\" : \"hello world\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "strVar", 1,
JSMN_STRING, "hello world", 0));
check(parse("{\"strVar\" : \"escapes: \\/\\r\\n\\t\\b\\f\\\"\\\\\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "strVar", 1,
JSMN_STRING, "escapes: \\/\\r\\n\\t\\b\\f\\\"\\\\", 0));
check(parse("{\"strVar\": \"\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "strVar", 1,
JSMN_STRING, "", 0));
check(parse("{\"a\":\"\\uAbcD\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "a", 1,
JSMN_STRING, "\\uAbcD", 0));
check(parse("{\"a\":\"str\\u0000\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "a", 1,
JSMN_STRING, "str\\u0000", 0));
check(parse("{\"a\":\"\\uFFFFstr\"}", 3, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "a", 1,
JSMN_STRING, "\\uFFFFstr", 0));
check(parse("{\"a\":[\"\\u0280\"]}", 4, 4,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "a", 1,
JSMN_ARRAY, -1, -1, 1,
JSMN_STRING, "\\u0280", 0));
check(parse("{\"a\":\"str\\uFFGFstr\"}", JSMN_ERROR_INVAL, 3));
check(parse("{\"a\":\"str\\u@FfF\"}", JSMN_ERROR_INVAL, 3));
check(parse("{{\"a\":[\"\\u028\"]}", JSMN_ERROR_INVAL, 4));
return 0;
}
int test_partial_string(void) {
int i;
int r;
jsmn_parser p;
jsmntok_t tok[5];
const char *js = "{\"x\": \"va\\\\ue\", \"y\": \"value y\"}";
jsmn_init(&p);
for (i = 1; i <= strlen(js); i++) {
r = jsmn_parse(&p, js, i, tok, sizeof(tok)/sizeof(tok[0]));
if (i == strlen(js)) {
check(r == 5);
check(tokeq(js, tok, 5,
JSMN_OBJECT, -1, -1, 2,
JSMN_STRING, "x", 1,
JSMN_STRING, "va\\\\ue", 0,
JSMN_STRING, "y", 1,
JSMN_STRING, "value y", 0));
} else {
check(r == JSMN_ERROR_PART);
}
}
return 0;
}
int test_partial_array(void) {
#ifdef JSMN_STRICT
int r;
int i;
jsmn_parser p;
jsmntok_t tok[10];
const char *js = "[ 1, true, [123, \"hello\"]]";
jsmn_init(&p);
for (i = 1; i <= strlen(js); i++) {
r = jsmn_parse(&p, js, i, tok, sizeof(tok)/sizeof(tok[0]));
if (i == strlen(js)) {
check(r == 6);
check(tokeq(js, tok, 6,
JSMN_ARRAY, -1, -1, 3,
JSMN_PRIMITIVE, "1",
JSMN_PRIMITIVE, "true",
JSMN_ARRAY, -1, -1, 2,
JSMN_PRIMITIVE, "123",
JSMN_STRING, "hello", 0));
} else {
check(r == JSMN_ERROR_PART);
}
}
#endif
return 0;
}
int test_array_nomem(void) {
int i;
int r;
jsmn_parser p;
jsmntok_t toksmall[10], toklarge[10];
const char *js;
js = " [ 1, true, [123, \"hello\"]]";
for (i = 0; i < 6; i++) {
jsmn_init(&p);
memset(toksmall, 0, sizeof(toksmall));
memset(toklarge, 0, sizeof(toklarge));
r = jsmn_parse(&p, js, strlen(js), toksmall, i);
check(r == JSMN_ERROR_NOMEM);
memcpy(toklarge, toksmall, sizeof(toksmall));
r = jsmn_parse(&p, js, strlen(js), toklarge, 10);
check(r >= 0);
check(tokeq(js, toklarge, 4,
JSMN_ARRAY, -1, -1, 3,
JSMN_PRIMITIVE, "1",
JSMN_PRIMITIVE, "true",
JSMN_ARRAY, -1, -1, 2,
JSMN_PRIMITIVE, "123",
JSMN_STRING, "hello", 0));
}
return 0;
}
int test_unquoted_keys(void) {
#ifndef JSMN_STRICT
int r;
jsmn_parser p;
jsmntok_t tok[10];
const char *js;
jsmn_init(&p);
js = "key1: \"value\"\nkey2 : 123";
r = jsmn_parse(&p, js, strlen(js), tok, 10);
check(r >= 0);
check(tokeq(js, tok, 4,
JSMN_PRIMITIVE, "key1",
JSMN_STRING, "value", 0,
JSMN_PRIMITIVE, "key2",
JSMN_PRIMITIVE, "123"));
#endif
return 0;
}
int test_issue_22(void) {
int r;
jsmn_parser p;
jsmntok_t tokens[128];
const char *js;
js = "{ \"height\":10, \"layers\":[ { \"data\":[6,6], \"height\":10, "
"\"name\":\"Calque de Tile 1\", \"opacity\":1, \"type\":\"tilelayer\", "
"\"visible\":true, \"width\":10, \"x\":0, \"y\":0 }], "
"\"orientation\":\"orthogonal\", \"properties\": { }, \"tileheight\":32, "
"\"tilesets\":[ { \"firstgid\":1, \"image\":\"..\\/images\\/tiles.png\", "
"\"imageheight\":64, \"imagewidth\":160, \"margin\":0, \"name\":\"Tiles\", "
"\"properties\":{}, \"spacing\":0, \"tileheight\":32, \"tilewidth\":32 }], "
"\"tilewidth\":32, \"version\":1, \"width\":10 }";
jsmn_init(&p);
r = jsmn_parse(&p, js, strlen(js), tokens, 128);
check(r >= 0);
return 0;
}
int test_issue_27(void) {
const char *js =
"{ \"name\" : \"Jack\", \"age\" : 27 } { \"name\" : \"Anna\", ";
check(parse(js, JSMN_ERROR_PART, 8));
return 0;
}
int test_input_length(void) {
const char *js;
int r;
jsmn_parser p;
jsmntok_t tokens[10];
js = "{\"a\": 0}garbage";
jsmn_init(&p);
r = jsmn_parse(&p, js, 8, tokens, 10);
check(r == 3);
check(tokeq(js, tokens, 3,
JSMN_OBJECT, -1, -1, 1,
JSMN_STRING, "a", 1,
JSMN_PRIMITIVE, "0"));
return 0;
}
int test_count(void) {
jsmn_parser p;
const char *js;
js = "{}";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 1);
js = "[]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 1);
js = "[[]]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 2);
js = "[[], []]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 3);
js = "[[], []]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 3);
js = "[[], [[]], [[], []]]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 7);
js = "[\"a\", [[], []]]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 5);
js = "[[], \"[], [[]]\", [[]]]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 5);
js = "[1, 2, 3]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 4);
js = "[1, 2, [3, \"a\"], null]";
jsmn_init(&p);
check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 7);
return 0;
}
int test_nonstrict(void) {
#ifndef JSMN_STRICT
const char *js;
js = "a: 0garbage";
check(parse(js, 2, 2,
JSMN_PRIMITIVE, "a",
JSMN_PRIMITIVE, "0garbage"));
js = "Day : 26\nMonth : Sep\n\nYear: 12";
check(parse(js, 6, 6,
JSMN_PRIMITIVE, "Day",
JSMN_PRIMITIVE, "26",
JSMN_PRIMITIVE, "Month",
JSMN_PRIMITIVE, "Sep",
JSMN_PRIMITIVE, "Year",
JSMN_PRIMITIVE, "12"));
#endif
return 0;
}
int test_unmatched_brackets(void) {
const char *js;
js = "\"key 1\": 1234}";
check(parse(js, JSMN_ERROR_INVAL, 2));
js = "{\"key 1\": 1234";
check(parse(js, JSMN_ERROR_PART, 3));
js = "{\"key 1\": 1234}}";
check(parse(js, JSMN_ERROR_INVAL, 3));
js = "\"key 1\"}: 1234";
check(parse(js, JSMN_ERROR_INVAL, 3));
js = "\"key {1\": 1234";
check(parse(js, 2, 2,
JSMN_STRING, "key {1", 1,
JSMN_PRIMITIVE, "1234"));
js = "{{\"key 1\": 1234}";
check(parse(js, JSMN_ERROR_PART, 4));
return 0;
}
int main(void) {
test(test_empty, "test for a empty JSON objects/arrays");
test(test_object, "test for a JSON objects");
test(test_array, "test for a JSON arrays");
test(test_primitive, "test primitive JSON data types");
test(test_string, "test string JSON data types");
test(test_partial_string, "test partial JSON string parsing");
test(test_partial_array, "test partial array reading");
test(test_array_nomem, "test array reading with a smaller number of tokens");
test(test_unquoted_keys, "test unquoted keys (like in JavaScript)");
test(test_input_length, "test strings that are not null-terminated");
test(test_issue_22, "test issue #22");
test(test_issue_27, "test issue #27");
test(test_count, "test tokens count estimation");
test(test_nonstrict, "test for non-strict mode");
test(test_unmatched_brackets, "test for unmatched brackets");
printf("\nPASSED: %d\nFAILED: %d\n", test_passed, test_failed);
return (test_failed > 0);
}

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#ifndef __TEST_UTIL_H__
#define __TEST_UTIL_H__
#include "../jsmn.c"
static int vtokeq(const char *s, jsmntok_t *t, int numtok, va_list ap) {
if (numtok > 0) {
int i, start, end, size;
int type;
char *value;
size = -1;
value = NULL;
for (i = 0; i < numtok; i++) {
type = va_arg(ap, int);
if (type == JSMN_STRING) {
value = va_arg(ap, char *);
size = va_arg(ap, int);
start = end = -1;
} else if (type == JSMN_PRIMITIVE) {
value = va_arg(ap, char *);
start = end = size = -1;
} else {
start = va_arg(ap, int);
end = va_arg(ap, int);
size = va_arg(ap, int);
value = NULL;
}
if (t[i].type != type) {
printf("token %d type is %d, not %d\n", i, t[i].type, type);
return 0;
}
if (start != -1 && end != -1) {
if (t[i].start != start) {
printf("token %d start is %d, not %d\n", i, t[i].start, start);
return 0;
}
if (t[i].end != end ) {
printf("token %d end is %d, not %d\n", i, t[i].end, end);
return 0;
}
}
if (size != -1 && t[i].size != size) {
printf("token %d size is %d, not %d\n", i, t[i].size, size);
return 0;
}
if (s != NULL && value != NULL) {
const char *p = s + t[i].start;
if (strlen(value) != t[i].end - t[i].start ||
strncmp(p, value, t[i].end - t[i].start) != 0) {
printf("token %d value is %.*s, not %s\n", i, t[i].end-t[i].start,
s+t[i].start, value);
return 0;
}
}
}
}
return 1;
}
static int tokeq(const char *s, jsmntok_t *tokens, int numtok, ...) {
int ok;
va_list args;
va_start(args, numtok);
ok = vtokeq(s, tokens, numtok, args);
va_end(args);
return ok;
}
static int parse(const char *s, int status, int numtok, ...) {
int r;
int ok = 1;
va_list args;
jsmn_parser p;
jsmntok_t *t = malloc(numtok * sizeof(jsmntok_t));
jsmn_init(&p);
r = jsmn_parse(&p, s, strlen(s), t, numtok);
if (r != status) {
printf("status is %d, not %d\n", r, status);
return 0;
}
if (status >= 0) {
va_start(args, numtok);
ok = vtokeq(s, t, numtok, args);
va_end(args);
}
free(t);
return ok;
}
#endif /* __TEST_UTIL_H__ */