mirror of
https://github.com/chatmail/core.git
synced 2026-05-07 00:46:31 +03:00
inital commit
This commit is contained in:
dignifiedquire
398
src/dc_jsmn.rs
Normal file
398
src/dc_jsmn.rs
Normal file
@@ -0,0 +1,398 @@
|
||||
use libc;
|
||||
pub type size_t = libc::c_ulong;
|
||||
/*
|
||||
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.
|
||||
*/
|
||||
/* *
|
||||
* JSON type identifier. Basic types are:
|
||||
* o Object
|
||||
* o Array
|
||||
* o String
|
||||
* o Other primitive: number, boolean (true/false) or null
|
||||
*/
|
||||
pub type jsmntype_t = libc::c_uint;
|
||||
pub const JSMN_PRIMITIVE: jsmntype_t = 4;
|
||||
pub const JSMN_STRING: jsmntype_t = 3;
|
||||
pub const JSMN_ARRAY: jsmntype_t = 2;
|
||||
pub const JSMN_OBJECT: jsmntype_t = 1;
|
||||
pub const JSMN_UNDEFINED: jsmntype_t = 0;
|
||||
pub type jsmnerr = libc::c_int;
|
||||
/* The string is not a full JSON packet, more bytes expected */
|
||||
pub const JSMN_ERROR_PART: jsmnerr = -3;
|
||||
/* Invalid character inside JSON string */
|
||||
pub const JSMN_ERROR_INVAL: jsmnerr = -2;
|
||||
/* Not enough tokens were provided */
|
||||
pub const JSMN_ERROR_NOMEM: jsmnerr = -1;
|
||||
/* *
|
||||
* JSON token description.
|
||||
* type type (object, array, string etc.)
|
||||
* start start position in JSON data string
|
||||
* end end position in JSON data string
|
||||
*/
|
||||
#[derive(Copy, Clone)]
|
||||
#[repr(C)]
|
||||
pub struct jsmntok_t {
|
||||
pub type_0: jsmntype_t,
|
||||
pub start: libc::c_int,
|
||||
pub end: libc::c_int,
|
||||
pub size: libc::c_int,
|
||||
}
|
||||
/* *
|
||||
* JSON parser. Contains an array of token blocks available. Also stores
|
||||
* the string being parsed now and current position in that string
|
||||
*/
|
||||
#[derive(Copy, Clone)]
|
||||
#[repr(C)]
|
||||
pub struct jsmn_parser {
|
||||
pub pos: libc::c_uint,
|
||||
pub toknext: libc::c_uint,
|
||||
pub toksuper: libc::c_int,
|
||||
}
|
||||
/* *
|
||||
* Create JSON parser over an array of tokens
|
||||
*/
|
||||
#[no_mangle]
|
||||
pub unsafe extern "C" fn jsmn_init(mut parser: *mut jsmn_parser) {
|
||||
(*parser).pos = 0i32 as libc::c_uint;
|
||||
(*parser).toknext = 0i32 as libc::c_uint;
|
||||
(*parser).toksuper = -1i32;
|
||||
}
|
||||
/* *
|
||||
* Run JSON parser. It parses a JSON data string into and array of tokens, each describing
|
||||
* a single JSON object.
|
||||
*/
|
||||
#[no_mangle]
|
||||
pub unsafe extern "C" fn jsmn_parse(
|
||||
mut parser: *mut jsmn_parser,
|
||||
mut js: *const libc::c_char,
|
||||
mut len: size_t,
|
||||
mut tokens: *mut jsmntok_t,
|
||||
mut num_tokens: libc::c_uint,
|
||||
) -> libc::c_int {
|
||||
let mut r: libc::c_int = 0;
|
||||
let mut i: libc::c_int = 0;
|
||||
let mut token: *mut jsmntok_t = 0 as *mut jsmntok_t;
|
||||
let mut count: libc::c_int = (*parser).toknext as libc::c_int;
|
||||
while ((*parser).pos as libc::c_ulong) < len
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
|
||||
{
|
||||
let mut c: libc::c_char = 0;
|
||||
let mut type_0: jsmntype_t = JSMN_UNDEFINED;
|
||||
c = *js.offset((*parser).pos as isize);
|
||||
match c as libc::c_int {
|
||||
123 | 91 => {
|
||||
count += 1;
|
||||
if !tokens.is_null() {
|
||||
token = jsmn_alloc_token(parser, tokens, num_tokens as size_t);
|
||||
if token.is_null() {
|
||||
return JSMN_ERROR_NOMEM as libc::c_int;
|
||||
}
|
||||
if (*parser).toksuper != -1i32 {
|
||||
let ref mut fresh0 = (*tokens.offset((*parser).toksuper as isize)).size;
|
||||
*fresh0 += 1
|
||||
}
|
||||
(*token).type_0 = (if c as libc::c_int == '{' as i32 {
|
||||
JSMN_OBJECT as libc::c_int
|
||||
} else {
|
||||
JSMN_ARRAY as libc::c_int
|
||||
}) as jsmntype_t;
|
||||
(*token).start = (*parser).pos as libc::c_int;
|
||||
(*parser).toksuper =
|
||||
(*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int
|
||||
}
|
||||
}
|
||||
125 | 93 => {
|
||||
if !tokens.is_null() {
|
||||
type_0 = (if c as libc::c_int == '}' as i32 {
|
||||
JSMN_OBJECT as libc::c_int
|
||||
} else {
|
||||
JSMN_ARRAY as libc::c_int
|
||||
}) as jsmntype_t;
|
||||
i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
|
||||
while i >= 0i32 {
|
||||
token = &mut *tokens.offset(i as isize) as *mut jsmntok_t;
|
||||
if (*token).start != -1i32 && (*token).end == -1i32 {
|
||||
if (*token).type_0 as libc::c_uint != type_0 as libc::c_uint {
|
||||
return JSMN_ERROR_INVAL as libc::c_int;
|
||||
}
|
||||
(*parser).toksuper = -1i32;
|
||||
(*token).end =
|
||||
(*parser).pos.wrapping_add(1i32 as libc::c_uint) as libc::c_int;
|
||||
break;
|
||||
} else {
|
||||
i -= 1
|
||||
}
|
||||
}
|
||||
if i == -1i32 {
|
||||
return JSMN_ERROR_INVAL as libc::c_int;
|
||||
}
|
||||
while i >= 0i32 {
|
||||
token = &mut *tokens.offset(i as isize) as *mut jsmntok_t;
|
||||
if (*token).start != -1i32 && (*token).end == -1i32 {
|
||||
(*parser).toksuper = i;
|
||||
break;
|
||||
} else {
|
||||
i -= 1
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
34 => {
|
||||
r = jsmn_parse_string(parser, js, len, tokens, num_tokens as size_t);
|
||||
if r < 0i32 {
|
||||
return r;
|
||||
}
|
||||
count += 1;
|
||||
if (*parser).toksuper != -1i32 && !tokens.is_null() {
|
||||
let ref mut fresh1 = (*tokens.offset((*parser).toksuper as isize)).size;
|
||||
*fresh1 += 1
|
||||
}
|
||||
}
|
||||
9 | 13 | 10 | 32 => {}
|
||||
58 => {
|
||||
(*parser).toksuper =
|
||||
(*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int
|
||||
}
|
||||
44 => {
|
||||
if !tokens.is_null()
|
||||
&& (*parser).toksuper != -1i32
|
||||
&& (*tokens.offset((*parser).toksuper as isize)).type_0 as libc::c_uint
|
||||
!= JSMN_ARRAY as libc::c_int as libc::c_uint
|
||||
&& (*tokens.offset((*parser).toksuper as isize)).type_0 as libc::c_uint
|
||||
!= JSMN_OBJECT as libc::c_int as libc::c_uint
|
||||
{
|
||||
i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
|
||||
while i >= 0i32 {
|
||||
if (*tokens.offset(i as isize)).type_0 as libc::c_uint
|
||||
== JSMN_ARRAY as libc::c_int as libc::c_uint
|
||||
|| (*tokens.offset(i as isize)).type_0 as libc::c_uint
|
||||
== JSMN_OBJECT as libc::c_int as libc::c_uint
|
||||
{
|
||||
if (*tokens.offset(i as isize)).start != -1i32
|
||||
&& (*tokens.offset(i as isize)).end == -1i32
|
||||
{
|
||||
(*parser).toksuper = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
i -= 1
|
||||
}
|
||||
}
|
||||
}
|
||||
_ => {
|
||||
r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens as size_t);
|
||||
if r < 0i32 {
|
||||
return r;
|
||||
}
|
||||
count += 1;
|
||||
if (*parser).toksuper != -1i32 && !tokens.is_null() {
|
||||
let ref mut fresh2 = (*tokens.offset((*parser).toksuper as isize)).size;
|
||||
*fresh2 += 1
|
||||
}
|
||||
}
|
||||
}
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1)
|
||||
}
|
||||
if !tokens.is_null() {
|
||||
i = (*parser).toknext.wrapping_sub(1i32 as libc::c_uint) as libc::c_int;
|
||||
while i >= 0i32 {
|
||||
if (*tokens.offset(i as isize)).start != -1i32
|
||||
&& (*tokens.offset(i as isize)).end == -1i32
|
||||
{
|
||||
return JSMN_ERROR_PART as libc::c_int;
|
||||
}
|
||||
i -= 1
|
||||
}
|
||||
}
|
||||
return count;
|
||||
}
|
||||
/* *
|
||||
* Fills next available token with JSON primitive.
|
||||
*/
|
||||
unsafe extern "C" fn jsmn_parse_primitive(
|
||||
mut parser: *mut jsmn_parser,
|
||||
mut js: *const libc::c_char,
|
||||
mut len: size_t,
|
||||
mut tokens: *mut jsmntok_t,
|
||||
mut num_tokens: size_t,
|
||||
) -> libc::c_int {
|
||||
let mut token: *mut jsmntok_t = 0 as *mut jsmntok_t;
|
||||
let mut start: libc::c_int = 0;
|
||||
start = (*parser).pos as libc::c_int;
|
||||
while ((*parser).pos as libc::c_ulong) < len
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
|
||||
{
|
||||
match *js.offset((*parser).pos as isize) as libc::c_int {
|
||||
58 | 9 | 13 | 10 | 32 | 44 | 93 | 125 => {
|
||||
break;
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
if (*js.offset((*parser).pos as isize) as libc::c_int) < 32i32
|
||||
|| *js.offset((*parser).pos as isize) as libc::c_int >= 127i32
|
||||
{
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_INVAL as libc::c_int;
|
||||
}
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1)
|
||||
}
|
||||
if tokens.is_null() {
|
||||
(*parser).pos = (*parser).pos.wrapping_sub(1);
|
||||
return 0i32;
|
||||
}
|
||||
token = jsmn_alloc_token(parser, tokens, num_tokens);
|
||||
if token.is_null() {
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_NOMEM as libc::c_int;
|
||||
}
|
||||
jsmn_fill_token(token, JSMN_PRIMITIVE, start, (*parser).pos as libc::c_int);
|
||||
(*parser).pos = (*parser).pos.wrapping_sub(1);
|
||||
return 0i32;
|
||||
}
|
||||
/* *
|
||||
* Fills token type and boundaries.
|
||||
*/
|
||||
unsafe extern "C" fn jsmn_fill_token(
|
||||
mut token: *mut jsmntok_t,
|
||||
mut type_0: jsmntype_t,
|
||||
mut start: libc::c_int,
|
||||
mut end: libc::c_int,
|
||||
) {
|
||||
(*token).type_0 = type_0;
|
||||
(*token).start = start;
|
||||
(*token).end = end;
|
||||
(*token).size = 0i32;
|
||||
}
|
||||
/*
|
||||
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.
|
||||
*/
|
||||
/* *
|
||||
* Allocates a fresh unused token from the token pool.
|
||||
*/
|
||||
unsafe extern "C" fn jsmn_alloc_token(
|
||||
mut parser: *mut jsmn_parser,
|
||||
mut tokens: *mut jsmntok_t,
|
||||
mut num_tokens: size_t,
|
||||
) -> *mut jsmntok_t {
|
||||
let mut tok: *mut jsmntok_t = 0 as *mut jsmntok_t;
|
||||
if (*parser).toknext as libc::c_ulong >= num_tokens {
|
||||
return 0 as *mut jsmntok_t;
|
||||
}
|
||||
let fresh3 = (*parser).toknext;
|
||||
(*parser).toknext = (*parser).toknext.wrapping_add(1);
|
||||
tok = &mut *tokens.offset(fresh3 as isize) as *mut jsmntok_t;
|
||||
(*tok).end = -1i32;
|
||||
(*tok).start = (*tok).end;
|
||||
(*tok).size = 0i32;
|
||||
return tok;
|
||||
}
|
||||
/* *
|
||||
* Fills next token with JSON string.
|
||||
*/
|
||||
unsafe extern "C" fn jsmn_parse_string(
|
||||
mut parser: *mut jsmn_parser,
|
||||
mut js: *const libc::c_char,
|
||||
mut len: size_t,
|
||||
mut tokens: *mut jsmntok_t,
|
||||
mut num_tokens: size_t,
|
||||
) -> libc::c_int {
|
||||
let mut token: *mut jsmntok_t = 0 as *mut jsmntok_t;
|
||||
let mut start: libc::c_int = (*parser).pos as libc::c_int;
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1);
|
||||
while ((*parser).pos as libc::c_ulong) < len
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
|
||||
{
|
||||
let mut c: libc::c_char = *js.offset((*parser).pos as isize);
|
||||
if c as libc::c_int == '\"' as i32 {
|
||||
if tokens.is_null() {
|
||||
return 0i32;
|
||||
}
|
||||
token = jsmn_alloc_token(parser, tokens, num_tokens);
|
||||
if token.is_null() {
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_NOMEM as libc::c_int;
|
||||
}
|
||||
jsmn_fill_token(
|
||||
token,
|
||||
JSMN_STRING,
|
||||
start + 1i32,
|
||||
(*parser).pos as libc::c_int,
|
||||
);
|
||||
return 0i32;
|
||||
}
|
||||
if c as libc::c_int == '\\' as i32
|
||||
&& ((*parser).pos.wrapping_add(1i32 as libc::c_uint) as libc::c_ulong) < len
|
||||
{
|
||||
let mut i: libc::c_int = 0;
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1);
|
||||
match *js.offset((*parser).pos as isize) as libc::c_int {
|
||||
34 | 47 | 92 | 98 | 102 | 114 | 110 | 116 => {}
|
||||
117 => {
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1);
|
||||
i = 0i32;
|
||||
while i < 4i32
|
||||
&& ((*parser).pos as libc::c_ulong) < len
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int != '\u{0}' as i32
|
||||
{
|
||||
if !(*js.offset((*parser).pos as isize) as libc::c_int >= 48i32
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int <= 57i32
|
||||
|| *js.offset((*parser).pos as isize) as libc::c_int >= 65i32
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int <= 70i32
|
||||
|| *js.offset((*parser).pos as isize) as libc::c_int >= 97i32
|
||||
&& *js.offset((*parser).pos as isize) as libc::c_int <= 102i32)
|
||||
{
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_INVAL as libc::c_int;
|
||||
}
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1);
|
||||
i += 1
|
||||
}
|
||||
(*parser).pos = (*parser).pos.wrapping_sub(1)
|
||||
}
|
||||
_ => {
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_INVAL as libc::c_int;
|
||||
}
|
||||
}
|
||||
}
|
||||
(*parser).pos = (*parser).pos.wrapping_add(1)
|
||||
}
|
||||
(*parser).pos = start as libc::c_uint;
|
||||
return JSMN_ERROR_PART as libc::c_int;
|
||||
}
|
||||
Reference in New Issue
Block a user