Merge my adamierymenko-dev into the new master that incorporates Raspberry Pi build changes in order to keep everything in sync.

This commit is contained in:
Adam Ierymenko
2013-08-03 10:29:56 -04:00
84 changed files with 2971 additions and 15380 deletions

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# Authors ordered by first contribution.
Ryan Dahl <ry@tinyclouds.org>
Jeremy Hinegardner <jeremy@hinegardner.org>
Sergey Shepelev <temotor@gmail.com>
Joe Damato <ice799@gmail.com>
tomika <tomika_nospam@freemail.hu>
Phoenix Sol <phoenix@burninglabs.com>
Cliff Frey <cliff@meraki.com>
Ewen Cheslack-Postava <ewencp@cs.stanford.edu>
Santiago Gala <sgala@apache.org>
Tim Becker <tim.becker@syngenio.de>
Jeff Terrace <jterrace@gmail.com>
Ben Noordhuis <info@bnoordhuis.nl>
Nathan Rajlich <nathan@tootallnate.net>
Mark Nottingham <mnot@mnot.net>
Aman Gupta <aman@tmm1.net>
Tim Becker <tim.becker@kuriositaet.de>
Sean Cunningham <sean.cunningham@mandiant.com>
Peter Griess <pg@std.in>
Salman Haq <salman.haq@asti-usa.com>
Cliff Frey <clifffrey@gmail.com>
Jon Kolb <jon@b0g.us>
Fouad Mardini <f.mardini@gmail.com>
Paul Querna <pquerna@apache.org>
Felix Geisendörfer <felix@debuggable.com>
koichik <koichik@improvement.jp>
Andre Caron <andre.l.caron@gmail.com>
Ivo Raisr <ivosh@ivosh.net>
James McLaughlin <jamie@lacewing-project.org>
David Gwynne <loki@animata.net>
Thomas LE ROUX <thomas@november-eleven.fr>
Randy Rizun <rrizun@ortivawireless.com>
Andre Louis Caron <andre.louis.caron@usherbrooke.ca>
Simon Zimmermann <simonz05@gmail.com>
Erik Dubbelboer <erik@dubbelboer.com>
Martell Malone <martellmalone@gmail.com>
Bertrand Paquet <bpaquet@octo.com>
BogDan Vatra <bogdan@kde.org>
Peter Faiman <peter@thepicard.org>
Corey Richardson <corey@octayn.net>
Tóth Tamás <tomika_nospam@freemail.hu>

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Contributors must agree to the Contributor License Agreement before patches
can be accepted.
http://spreadsheets2.google.com/viewform?hl=en&formkey=dDJXOGUwbzlYaWM4cHN1MERwQS1CSnc6MQ

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http_parser.c is based on src/http/ngx_http_parse.c from NGINX copyright
Igor Sysoev.
Additional changes are licensed under the same terms as NGINX and
copyright Joyent, Inc. and other Node contributors. All rights reserved.
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.

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HTTP Parser
===========
[![Build Status](https://travis-ci.org/joyent/http-parser.png?branch=master)](https://travis-ci.org/joyent/http-parser)
This is a parser for HTTP messages written in C. It parses both requests and
responses. The parser is designed to be used in performance HTTP
applications. It does not make any syscalls nor allocations, it does not
buffer data, it can be interrupted at anytime. Depending on your
architecture, it only requires about 40 bytes of data per message
stream (in a web server that is per connection).
Features:
* No dependencies
* Handles persistent streams (keep-alive).
* Decodes chunked encoding.
* Upgrade support
* Defends against buffer overflow attacks.
The parser extracts the following information from HTTP messages:
* Header fields and values
* Content-Length
* Request method
* Response status code
* Transfer-Encoding
* HTTP version
* Request URL
* Message body
Usage
-----
One `http_parser` object is used per TCP connection. Initialize the struct
using `http_parser_init()` and set the callbacks. That might look something
like this for a request parser:
http_parser_settings settings;
settings.on_url = my_url_callback;
settings.on_header_field = my_header_field_callback;
/* ... */
http_parser *parser = malloc(sizeof(http_parser));
http_parser_init(parser, HTTP_REQUEST);
parser->data = my_socket;
When data is received on the socket execute the parser and check for errors.
size_t len = 80*1024, nparsed;
char buf[len];
ssize_t recved;
recved = recv(fd, buf, len, 0);
if (recved < 0) {
/* Handle error. */
}
/* Start up / continue the parser.
* Note we pass recved==0 to signal that EOF has been recieved.
*/
nparsed = http_parser_execute(parser, &settings, buf, recved);
if (parser->upgrade) {
/* handle new protocol */
} else if (nparsed != recved) {
/* Handle error. Usually just close the connection. */
}
HTTP needs to know where the end of the stream is. For example, sometimes
servers send responses without Content-Length and expect the client to
consume input (for the body) until EOF. To tell http_parser about EOF, give
`0` as the forth parameter to `http_parser_execute()`. Callbacks and errors
can still be encountered during an EOF, so one must still be prepared
to receive them.
Scalar valued message information such as `status_code`, `method`, and the
HTTP version are stored in the parser structure. This data is only
temporally stored in `http_parser` and gets reset on each new message. If
this information is needed later, copy it out of the structure during the
`headers_complete` callback.
The parser decodes the transfer-encoding for both requests and responses
transparently. That is, a chunked encoding is decoded before being sent to
the on_body callback.
The Special Problem of Upgrade
------------------------------
HTTP supports upgrading the connection to a different protocol. An
increasingly common example of this is the Web Socket protocol which sends
a request like
GET /demo HTTP/1.1
Upgrade: WebSocket
Connection: Upgrade
Host: example.com
Origin: http://example.com
WebSocket-Protocol: sample
followed by non-HTTP data.
(See http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-75 for more
information the Web Socket protocol.)
To support this, the parser will treat this as a normal HTTP message without a
body. Issuing both on_headers_complete and on_message_complete callbacks. However
http_parser_execute() will stop parsing at the end of the headers and return.
The user is expected to check if `parser->upgrade` has been set to 1 after
`http_parser_execute()` returns. Non-HTTP data begins at the buffer supplied
offset by the return value of `http_parser_execute()`.
Callbacks
---------
During the `http_parser_execute()` call, the callbacks set in
`http_parser_settings` will be executed. The parser maintains state and
never looks behind, so buffering the data is not necessary. If you need to
save certain data for later usage, you can do that from the callbacks.
There are two types of callbacks:
* notification `typedef int (*http_cb) (http_parser*);`
Callbacks: on_message_begin, on_headers_complete, on_message_complete.
* data `typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);`
Callbacks: (requests only) on_uri,
(common) on_header_field, on_header_value, on_body;
Callbacks must return 0 on success. Returning a non-zero value indicates
error to the parser, making it exit immediately.
In case you parse HTTP message in chunks (i.e. `read()` request line
from socket, parse, read half headers, parse, etc) your data callbacks
may be called more than once. Http-parser guarantees that data pointer is only
valid for the lifetime of callback. You can also `read()` into a heap allocated
buffer to avoid copying memory around if this fits your application.
Reading headers may be a tricky task if you read/parse headers partially.
Basically, you need to remember whether last header callback was field or value
and apply following logic:
(on_header_field and on_header_value shortened to on_h_*)
------------------------ ------------ --------------------------------------------
| State (prev. callback) | Callback | Description/action |
------------------------ ------------ --------------------------------------------
| nothing (first call) | on_h_field | Allocate new buffer and copy callback data |
| | | into it |
------------------------ ------------ --------------------------------------------
| value | on_h_field | New header started. |
| | | Copy current name,value buffers to headers |
| | | list and allocate new buffer for new name |
------------------------ ------------ --------------------------------------------
| field | on_h_field | Previous name continues. Reallocate name |
| | | buffer and append callback data to it |
------------------------ ------------ --------------------------------------------
| field | on_h_value | Value for current header started. Allocate |
| | | new buffer and copy callback data to it |
------------------------ ------------ --------------------------------------------
| value | on_h_value | Value continues. Reallocate value buffer |
| | | and append callback data to it |
------------------------ ------------ --------------------------------------------
Parsing URLs
------------
A simplistic zero-copy URL parser is provided as `http_parser_parse_url()`.
Users of this library may wish to use it to parse URLs constructed from
consecutive `on_url` callbacks.
See examples of reading in headers:
* [partial example](http://gist.github.com/155877) in C
* [from http-parser tests](http://github.com/joyent/http-parser/blob/37a0ff8/test.c#L403) in C
* [from Node library](http://github.com/joyent/node/blob/842eaf4/src/http.js#L284) in Javascript

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/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
*
* Additional changes are licensed under the same terms as NGINX and
* copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* 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.
*/
/* Dump what the parser finds to stdout as it happen */
#include "http_parser.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int on_message_begin(http_parser* _) {
(void)_;
printf("\n***MESSAGE BEGIN***\n\n");
return 0;
}
int on_headers_complete(http_parser* _) {
(void)_;
printf("\n***HEADERS COMPLETE***\n\n");
return 0;
}
int on_message_complete(http_parser* _) {
(void)_;
printf("\n***MESSAGE COMPLETE***\n\n");
return 0;
}
int on_url(http_parser* _, const char* at, size_t length) {
(void)_;
printf("Url: %.*s\n", (int)length, at);
return 0;
}
int on_header_field(http_parser* _, const char* at, size_t length) {
(void)_;
printf("Header field: %.*s\n", (int)length, at);
return 0;
}
int on_header_value(http_parser* _, const char* at, size_t length) {
(void)_;
printf("Header value: %.*s\n", (int)length, at);
return 0;
}
int on_body(http_parser* _, const char* at, size_t length) {
(void)_;
printf("Body: %.*s\n", (int)length, at);
return 0;
}
void usage(const char* name) {
fprintf(stderr,
"Usage: %s $type $filename\n"
" type: -x, where x is one of {r,b,q}\n"
" parses file as a Response, reQuest, or Both\n",
name);
exit(EXIT_FAILURE);
}
int main(int argc, char* argv[]) {
enum http_parser_type file_type;
if (argc != 3) {
usage(argv[0]);
}
char* type = argv[1];
if (type[0] != '-') {
usage(argv[0]);
}
switch (type[1]) {
/* in the case of "-", type[1] will be NUL */
case 'r':
file_type = HTTP_RESPONSE;
break;
case 'q':
file_type = HTTP_REQUEST;
break;
case 'b':
file_type = HTTP_BOTH;
break;
default:
usage(argv[0]);
}
char* filename = argv[2];
FILE* file = fopen(filename, "r");
if (file == NULL) {
perror("fopen");
return EXIT_FAILURE;
}
fseek(file, 0, SEEK_END);
long file_length = ftell(file);
if (file_length == -1) {
perror("ftell");
return EXIT_FAILURE;
}
fseek(file, 0, SEEK_SET);
char* data = malloc(file_length);
if (fread(data, 1, file_length, file) != (size_t)file_length) {
fprintf(stderr, "couldn't read entire file\n");
free(data);
return EXIT_FAILURE;
}
http_parser_settings settings;
memset(&settings, 0, sizeof(settings));
settings.on_message_begin = on_message_begin;
settings.on_url = on_url;
settings.on_header_field = on_header_field;
settings.on_header_value = on_header_value;
settings.on_headers_complete = on_headers_complete;
settings.on_body = on_body;
settings.on_message_complete = on_message_complete;
http_parser parser;
http_parser_init(&parser, file_type);
size_t nparsed = http_parser_execute(&parser, &settings, data, file_length);
free(data);
if (nparsed != (size_t)file_length) {
fprintf(stderr,
"Error: %s (%s)\n",
http_errno_description(HTTP_PARSER_ERRNO(&parser)),
http_errno_name(HTTP_PARSER_ERRNO(&parser)));
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}

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#include "http_parser.h"
#include <stdio.h>
#include <string.h>
void
dump_url (const char *url, const struct http_parser_url *u)
{
unsigned int i;
printf("\tfield_set: 0x%x, port: %u\n", u->field_set, u->port);
for (i = 0; i < UF_MAX; i++) {
if ((u->field_set & (1 << i)) == 0) {
printf("\tfield_data[%u]: unset\n", i);
continue;
}
printf("\tfield_data[%u]: off: %u len: %u part: \"%.*s\n",
i,
u->field_data[i].off,
u->field_data[i].len,
u->field_data[i].len,
url + u->field_data[i].off);
}
}
int main(int argc, char ** argv) {
if (argc != 3) {
printf("Syntax : %s connect|get url\n", argv[0]);
return 1;
}
struct http_parser_url u;
int len = strlen(argv[2]);
int connect = strcmp("connect", argv[1]) == 0 ? 1 : 0;
printf("Parsing %s, connect %d\n", argv[2], connect);
int result = http_parser_parse_url(argv[2], len, connect, &u);
if (result != 0) {
printf("Parse error : %d\n", result);
return result;
}
printf("Parse ok, result : \n");
dump_url(argv[2], &u);
return 0;
}

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# This file is used with the GYP meta build system.
# http://code.google.com/p/gyp/
# To build try this:
# svn co http://gyp.googlecode.com/svn/trunk gyp
# ./gyp/gyp -f make --depth=`pwd` http_parser.gyp
# ./out/Debug/test
{
'target_defaults': {
'default_configuration': 'Debug',
'configurations': {
# TODO: hoist these out and put them somewhere common, because
# RuntimeLibrary MUST MATCH across the entire project
'Debug': {
'defines': [ 'DEBUG', '_DEBUG' ],
'cflags': [ '-Wall', '-Wextra', '-O0', '-g', '-ftrapv' ],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 1, # static debug
},
},
},
'Release': {
'defines': [ 'NDEBUG' ],
'cflags': [ '-Wall', '-Wextra', '-O3' ],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 0, # static release
},
},
}
},
'msvs_settings': {
'VCCLCompilerTool': {
},
'VCLibrarianTool': {
},
'VCLinkerTool': {
'GenerateDebugInformation': 'true',
},
},
'conditions': [
['OS == "win"', {
'defines': [
'WIN32'
],
}]
],
},
'targets': [
{
'target_name': 'http_parser',
'type': 'static_library',
'include_dirs': [ '.' ],
'direct_dependent_settings': {
'defines': [ 'HTTP_PARSER_STRICT=0' ],
'include_dirs': [ '.' ],
},
'defines': [ 'HTTP_PARSER_STRICT=0' ],
'sources': [ './http_parser.c', ],
'conditions': [
['OS=="win"', {
'msvs_settings': {
'VCCLCompilerTool': {
# Compile as C++. http_parser.c is actually C99, but C++ is
# close enough in this case.
'CompileAs': 2,
},
},
}]
],
},
{
'target_name': 'http_parser_strict',
'type': 'static_library',
'include_dirs': [ '.' ],
'direct_dependent_settings': {
'defines': [ 'HTTP_PARSER_STRICT=1' ],
'include_dirs': [ '.' ],
},
'defines': [ 'HTTP_PARSER_STRICT=1' ],
'sources': [ './http_parser.c', ],
'conditions': [
['OS=="win"', {
'msvs_settings': {
'VCCLCompilerTool': {
# Compile as C++. http_parser.c is actually C99, but C++ is
# close enough in this case.
'CompileAs': 2,
},
},
}]
],
},
{
'target_name': 'test-nonstrict',
'type': 'executable',
'dependencies': [ 'http_parser' ],
'sources': [ 'test.c' ]
},
{
'target_name': 'test-strict',
'type': 'executable',
'dependencies': [ 'http_parser_strict' ],
'sources': [ 'test.c' ]
}
]
}

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* 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.
*/
#ifndef http_parser_h
#define http_parser_h
#ifdef __cplusplus
extern "C" {
#endif
#define HTTP_PARSER_VERSION_MAJOR 2
#define HTTP_PARSER_VERSION_MINOR 0
#include <sys/types.h>
#if defined(_WIN32) && !defined(__MINGW32__) && (!defined(_MSC_VER) || _MSC_VER<1600)
#include <BaseTsd.h>
#include <stddef.h>
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
* faster
*/
#ifndef HTTP_PARSER_STRICT
# define HTTP_PARSER_STRICT 1
#endif
/* Maximium header size allowed */
#define HTTP_MAX_HEADER_SIZE (80*1024)
typedef struct http_parser http_parser;
typedef struct http_parser_settings http_parser_settings;
/* Callbacks should return non-zero to indicate an error. The parser will
* then halt execution.
*
* The one exception is on_headers_complete. In a HTTP_RESPONSE parser
* returning '1' from on_headers_complete will tell the parser that it
* should not expect a body. This is used when receiving a response to a
* HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
* chunked' headers that indicate the presence of a body.
*
* http_data_cb does not return data chunks. It will be call arbitrarally
* many times for each string. E.G. you might get 10 callbacks for "on_url"
* each providing just a few characters more data.
*/
typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
typedef int (*http_cb) (http_parser*);
/* Request Methods */
#define HTTP_METHOD_MAP(XX) \
XX(0, DELETE, DELETE) \
XX(1, GET, GET) \
XX(2, HEAD, HEAD) \
XX(3, POST, POST) \
XX(4, PUT, PUT) \
/* pathological */ \
XX(5, CONNECT, CONNECT) \
XX(6, OPTIONS, OPTIONS) \
XX(7, TRACE, TRACE) \
/* webdav */ \
XX(8, COPY, COPY) \
XX(9, LOCK, LOCK) \
XX(10, MKCOL, MKCOL) \
XX(11, MOVE, MOVE) \
XX(12, PROPFIND, PROPFIND) \
XX(13, PROPPATCH, PROPPATCH) \
XX(14, SEARCH, SEARCH) \
XX(15, UNLOCK, UNLOCK) \
/* subversion */ \
XX(16, REPORT, REPORT) \
XX(17, MKACTIVITY, MKACTIVITY) \
XX(18, CHECKOUT, CHECKOUT) \
XX(19, MERGE, MERGE) \
/* upnp */ \
XX(20, MSEARCH, M-SEARCH) \
XX(21, NOTIFY, NOTIFY) \
XX(22, SUBSCRIBE, SUBSCRIBE) \
XX(23, UNSUBSCRIBE, UNSUBSCRIBE) \
/* RFC-5789 */ \
XX(24, PATCH, PATCH) \
XX(25, PURGE, PURGE) \
enum http_method
{
#define XX(num, name, string) HTTP_##name = num,
HTTP_METHOD_MAP(XX)
#undef XX
};
enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
/* Flag values for http_parser.flags field */
enum flags
{ F_CHUNKED = 1 << 0
, F_CONNECTION_KEEP_ALIVE = 1 << 1
, F_CONNECTION_CLOSE = 1 << 2
, F_TRAILING = 1 << 3
, F_UPGRADE = 1 << 4
, F_SKIPBODY = 1 << 5
};
/* Map for errno-related constants
*
* The provided argument should be a macro that takes 2 arguments.
*/
#define HTTP_ERRNO_MAP(XX) \
/* No error */ \
XX(OK, "success") \
\
/* Callback-related errors */ \
XX(CB_message_begin, "the on_message_begin callback failed") \
XX(CB_status_complete, "the on_status_complete callback failed") \
XX(CB_url, "the on_url callback failed") \
XX(CB_header_field, "the on_header_field callback failed") \
XX(CB_header_value, "the on_header_value callback failed") \
XX(CB_headers_complete, "the on_headers_complete callback failed") \
XX(CB_body, "the on_body callback failed") \
XX(CB_message_complete, "the on_message_complete callback failed") \
\
/* Parsing-related errors */ \
XX(INVALID_EOF_STATE, "stream ended at an unexpected time") \
XX(HEADER_OVERFLOW, \
"too many header bytes seen; overflow detected") \
XX(CLOSED_CONNECTION, \
"data received after completed connection: close message") \
XX(INVALID_VERSION, "invalid HTTP version") \
XX(INVALID_STATUS, "invalid HTTP status code") \
XX(INVALID_METHOD, "invalid HTTP method") \
XX(INVALID_URL, "invalid URL") \
XX(INVALID_HOST, "invalid host") \
XX(INVALID_PORT, "invalid port") \
XX(INVALID_PATH, "invalid path") \
XX(INVALID_QUERY_STRING, "invalid query string") \
XX(INVALID_FRAGMENT, "invalid fragment") \
XX(LF_EXPECTED, "LF character expected") \
XX(INVALID_HEADER_TOKEN, "invalid character in header") \
XX(INVALID_CONTENT_LENGTH, \
"invalid character in content-length header") \
XX(INVALID_CHUNK_SIZE, \
"invalid character in chunk size header") \
XX(INVALID_CONSTANT, "invalid constant string") \
XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
XX(STRICT, "strict mode assertion failed") \
XX(PAUSED, "parser is paused") \
XX(UNKNOWN, "an unknown error occurred")
/* Define HPE_* values for each errno value above */
#define HTTP_ERRNO_GEN(n, s) HPE_##n,
enum http_errno {
HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
};
#undef HTTP_ERRNO_GEN
/* Get an http_errno value from an http_parser */
#define HTTP_PARSER_ERRNO(p) ((enum http_errno) (p)->http_errno)
struct http_parser {
/** PRIVATE **/
unsigned char type : 2; /* enum http_parser_type */
unsigned char flags : 6; /* F_* values from 'flags' enum; semi-public */
unsigned char state; /* enum state from http_parser.c */
unsigned char header_state; /* enum header_state from http_parser.c */
unsigned char index; /* index into current matcher */
uint32_t nread; /* # bytes read in various scenarios */
uint64_t content_length; /* # bytes in body (0 if no Content-Length header) */
/** READ-ONLY **/
unsigned short http_major;
unsigned short http_minor;
unsigned short status_code; /* responses only */
unsigned char method; /* requests only */
unsigned char http_errno : 7;
/* 1 = Upgrade header was present and the parser has exited because of that.
* 0 = No upgrade header present.
* Should be checked when http_parser_execute() returns in addition to
* error checking.
*/
unsigned char upgrade : 1;
/** PUBLIC **/
void *data; /* A pointer to get hook to the "connection" or "socket" object */
};
struct http_parser_settings {
http_cb on_message_begin;
http_data_cb on_url;
http_cb on_status_complete;
http_data_cb on_header_field;
http_data_cb on_header_value;
http_cb on_headers_complete;
http_data_cb on_body;
http_cb on_message_complete;
};
enum http_parser_url_fields
{ UF_SCHEMA = 0
, UF_HOST = 1
, UF_PORT = 2
, UF_PATH = 3
, UF_QUERY = 4
, UF_FRAGMENT = 5
, UF_USERINFO = 6
, UF_MAX = 7
};
/* Result structure for http_parser_parse_url().
*
* Callers should index into field_data[] with UF_* values iff field_set
* has the relevant (1 << UF_*) bit set. As a courtesy to clients (and
* because we probably have padding left over), we convert any port to
* a uint16_t.
*/
struct http_parser_url {
uint16_t field_set; /* Bitmask of (1 << UF_*) values */
uint16_t port; /* Converted UF_PORT string */
struct {
uint16_t off; /* Offset into buffer in which field starts */
uint16_t len; /* Length of run in buffer */
} field_data[UF_MAX];
};
void http_parser_init(http_parser *parser, enum http_parser_type type);
size_t http_parser_execute(http_parser *parser,
const http_parser_settings *settings,
const char *data,
size_t len);
/* If http_should_keep_alive() in the on_headers_complete or
* on_message_complete callback returns 0, then this should be
* the last message on the connection.
* If you are the server, respond with the "Connection: close" header.
* If you are the client, close the connection.
*/
int http_should_keep_alive(const http_parser *parser);
/* Returns a string version of the HTTP method. */
const char *http_method_str(enum http_method m);
/* Return a string name of the given error */
const char *http_errno_name(enum http_errno err);
/* Return a string description of the given error */
const char *http_errno_description(enum http_errno err);
/* Parse a URL; return nonzero on failure */
int http_parser_parse_url(const char *buf, size_t buflen,
int is_connect,
struct http_parser_url *u);
/* Pause or un-pause the parser; a nonzero value pauses */
void http_parser_pause(http_parser *parser, int paused);
/* Checks if this is the final chunk of the body. */
int http_body_is_final(const http_parser *parser);
#ifdef __cplusplus
}
#endif
#endif

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/*
* Huffandpuff minimal Huffman coder
*
* (c)2013 Adam Ierymenko <adam.ierymenko@zerotier.com>
* This code is in the public domain and is distributed with NO WARRANTY.
*/
#include "huffman.h"
struct _huffman_node
{
struct _huffman_node *lr[2];
struct _huffman_node *qprev,*qnext;
double prob;
unsigned long c;
};
struct _huffman_encode_table
{
unsigned long code;
unsigned long bits;
};
static void _huffman_write_tree_and_make_encode_table(unsigned char *out,unsigned long *outbitctr,unsigned long outlen,struct _huffman_encode_table *et,unsigned long code,unsigned int bits,struct _huffman_node *t)
{
struct _huffman_encode_table *eti;
unsigned int i;
unsigned long byte_index;
byte_index = (*outbitctr)++ >> 3;
byte_index *= (byte_index < outlen);
if (t->lr[0]) {
out[byte_index] <<= 1;
_huffman_write_tree_and_make_encode_table(out,outbitctr,outlen,et,code,bits + 1,t->lr[0]);
_huffman_write_tree_and_make_encode_table(out,outbitctr,outlen,et,code | (1 << bits),bits + 1,t->lr[1]);
} else {
out[byte_index] = (out[byte_index] << 1) | 1;
for(i=0;i<9;++i) {
byte_index = (*outbitctr)++ >> 3;
if (byte_index >= outlen) return;
out[byte_index] = (out[byte_index] << 1) | ((unsigned char)((t->c >> i) & 1));
}
eti = &(et[t->c]);
eti->code = code;
eti->bits = bits;
}
}
static struct _huffman_node *_huffman_read_tree(const unsigned char *in,unsigned long *inbitctr,unsigned long inlen,unsigned char **heapptr,unsigned char *heapend)
{
struct _huffman_node *n;
unsigned int i;
unsigned long byte_index;
n = (struct _huffman_node *)(*heapptr);
*heapptr += sizeof(struct _huffman_node);
if (*heapptr > heapend) return (struct _huffman_node *)0;
byte_index = *inbitctr >> 3;
byte_index *= (byte_index < inlen);
if (((in[byte_index] >> (~((*inbitctr)++) & 7)) & 1)) {
n->lr[0] = (struct _huffman_node *)0;
n->lr[1] = (struct _huffman_node *)0;
n->c = 0;
for(i=0;i<9;++i) {
byte_index = *inbitctr >> 3;
if (byte_index >= inlen) return (struct _huffman_node *)0;
n->c |= (((unsigned int)(in[byte_index] >> (~((*inbitctr)++) & 7))) & 1) << i;
}
} else {
n->lr[0] = _huffman_read_tree(in,inbitctr,inlen,heapptr,heapend);
n->lr[1] = _huffman_read_tree(in,inbitctr,inlen,heapptr,heapend);
if (!((n->lr[0])&&(n->lr[1])))
return (struct _huffman_node *)0;
}
return n;
}
unsigned long huffman_compress(const unsigned char *in,unsigned long inlen,unsigned char *out,unsigned long outlen,void *huffheap)
{
struct _huffman_encode_table *et,*eti;
struct _huffman_node *t,*n;
struct _huffman_node *pair[2];
unsigned char *heapptr = (unsigned char *)huffheap;
unsigned long i,code,byte_index,outbitctr;
unsigned int bits,b;
double *counts,lowest_prob,total_symbols;
counts = (double *)heapptr;
heapptr += (sizeof(double) * 257);
for(i=0;i<256;++i)
counts[i] = 0.0;
counts[256] = 1.0; /* one stop code at end */
for(i=0;i<inlen;++i)
counts[(unsigned long)in[i]] += 1.0;
t = (struct _huffman_node *)0;
total_symbols = (double)(inlen + 1);
for(i=0;i<=256;++i) {
if (counts[i] > 0.0) {
n = (struct _huffman_node *)heapptr;
heapptr += sizeof(struct _huffman_node);
if (t)
t->qprev = n;
n->qprev = (struct _huffman_node *)0;
n->qnext = t;
n->lr[0] = (struct _huffman_node *)0;
n->lr[1] = (struct _huffman_node *)0;
n->prob = counts[i] / total_symbols;
n->c = (unsigned int)i;
t = n;
}
}
while (t->qnext) {
for(i=0;i<2;++i) {
lowest_prob = 1.0;
pair[i] = (struct _huffman_node *)0;
n = t;
while (n) {
if (n->prob <= lowest_prob) {
lowest_prob = n->prob;
pair[i] = n;
}
n = n->qnext;
}
if (pair[i]->qprev)
pair[i]->qprev->qnext = pair[i]->qnext;
else t = pair[i]->qnext;
if (pair[i]->qnext)
pair[i]->qnext->qprev = pair[i]->qprev;
}
n = (struct _huffman_node *)heapptr;
heapptr += sizeof(struct _huffman_node);
n->lr[0] = pair[0];
n->lr[1] = pair[1];
n->prob = pair[0]->prob + pair[1]->prob;
if (t)
t->qprev = n;
n->qprev = (struct _huffman_node *)0;
n->qnext = t;
t = n;
}
et = (struct _huffman_encode_table *)heapptr;
heapptr += (sizeof(struct _huffman_encode_table) * 257);
outbitctr = 0;
_huffman_write_tree_and_make_encode_table(out,&outbitctr,outlen,et,0,0,t);
for(i=0;i<inlen;++i) {
eti = &(et[(unsigned long)in[i]]);
code = eti->code;
bits = eti->bits;
for(b=0;b<bits;++b) {
byte_index = outbitctr++ >> 3;
if (byte_index >= outlen) return 0;
out[byte_index] = (out[byte_index] << 1) | (unsigned char)(code & 1);
code >>= 1;
}
}
code = et[256].code;
bits = et[256].bits;
for(b=0;b<bits;++b) {
byte_index = outbitctr++ >> 3;
if (byte_index >= outlen) return 0;
out[byte_index] = (out[byte_index] << 1) | (unsigned char)(code & 1);
code >>= 1;
}
if (outbitctr > (outlen << 3))
return 0;
else if ((outbitctr & 7)) {
out[i = (outbitctr >> 3)] <<= 8 - (outbitctr & 7);
return (i + 1);
} else return (outbitctr >> 3);
}
unsigned long huffman_decompress(const unsigned char *in,unsigned long inlen,unsigned char *out,unsigned long outlen,void *huffheap)
{
struct _huffman_node *t,*n;
unsigned char *heapptr = (unsigned char *)huffheap;
unsigned long inbitctr,outptr,byte_index = 0;
inbitctr = 0;
t = _huffman_read_tree(in,&inbitctr,inlen,&heapptr,heapptr + HUFFHEAP_SIZE);
if (!t) return 0;
outptr = 0;
for(;;) {
n = t;
while (n->lr[0]) {
byte_index = inbitctr >> 3;
if (byte_index >= inlen) return 0;
n = n->lr[((unsigned long)(in[byte_index] >> (~(inbitctr++) & 7))) & 1];
}
if (n->c == 256) return outptr;
if (outptr == outlen) return 0;
out[outptr++] = (unsigned char)n->c;
}
}
#ifdef HUFFANDPUFF_TEST
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define HUFFANDPUFF_TEST_MAXLEN 1048576
#define HUFFANDPUFF_TEST_ITER 1024
static unsigned char testin[HUFFANDPUFF_TEST_MAXLEN];
static unsigned char testout[HUFFANDPUFF_TEST_MAXLEN * 2];
static unsigned char testver[HUFFANDPUFF_TEST_MAXLEN];
static unsigned char huffbuf[HUFFHEAP_SIZE];
int main(int argc,char **argv)
{
unsigned long i,k,l,cl,dcl;
int v;
unsigned char mask;
srand(time(0));
for(k=0;k<HUFFANDPUFF_TEST_ITER;++k) {
l = (rand() % HUFFANDPUFF_TEST_MAXLEN) + 1;
mask = (rand() & 0xff);
for(i=0;i<l;++i)
testin[i] = (unsigned char)(rand() & 0xff) & mask;
cl = huffman_compress(testin,l,testout,sizeof(testout),huffbuf);
if (cl) {
memset(testver,0,sizeof(testver));
dcl = huffman_decompress(testout,cl,testver,sizeof(testver),huffbuf);
v = ((dcl)&&(!memcmp(testver,testin,l)));
printf("[%d] in: %d, out: %d, verified: %s\n",(int)k,(int)l,(int)cl,(v) ? "OK" : "FAIL");
} else printf("[%d] in: %d, out: FAIL\n",(int)k,(int)l);
}
printf("\nFuzzing decompress function...\n");
for(;;) {
l = (rand() % HUFFANDPUFF_TEST_MAXLEN) + 1;
mask = (rand() & 0xff);
for(i=0;i<l;++i)
testin[i] = (unsigned char)(rand() & 0xff) & mask;
huffman_decompress(testin,l,testver,sizeof(testver),huffbuf);
printf("."); fflush(stdout);
}
return 0;
}
#endif

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@@ -1,52 +0,0 @@
/*
* Huffandpuff minimal Huffman coder
*
* (c)2013 Adam Ierymenko <adam.ierymenko@zerotier.com>
* This code is in the public domain and is distributed with NO WARRANTY.
*/
#ifndef ____HUFFMAN_H
#define ____HUFFMAN_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* Required size of huffheap parameter to compress and decompress
*
* Note: if you change any of the data types in the _huffman_node
* or _huffman_encode_table structs in huffman.c, this also must be
* changed.
*/
#define HUFFHEAP_SIZE ((sizeof(double) * 257) + (((sizeof(void *) * 4) + sizeof(double) + sizeof(unsigned long)) * (257 * 3)) + ((sizeof(unsigned long) + sizeof(unsigned long)) * 257))
/**
* Huffman encode a block of data
*
* @param in Input data
* @param inlen Input data length
* @param out Output buffer
* @param outlen Output buffer length
* @param huffheap Heap memory to use for compression (must be HUFFHEAP_SIZE in size)
* @return Size of encoded result or 0 on out buffer overrun
*/
extern unsigned long huffman_compress(const unsigned char *in,unsigned long inlen,unsigned char *out,unsigned long outlen,void *huffheap);
/**
* Huffman decode a block of data
*
* @param in Input data
* @param inlen Length of input data
* @param out Output buffer
* @param outlen Length of output buffer
* @param huffheap Heap memory to use for decompression (must be HUFFHEAP_SIZE in size)
* @return Size of decoded result or 0 on out buffer overrun or corrupt input data
*/
extern unsigned long huffman_decompress(const unsigned char *in,unsigned long inlen,unsigned char *out,unsigned long outlen,void *huffheap);
#ifdef __cplusplus
}
#endif
#endif

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@@ -1,24 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSON_AUTOLINK_H_INCLUDED
# define JSON_AUTOLINK_H_INCLUDED
# include "config.h"
# ifdef JSON_IN_CPPTL
# include <cpptl/cpptl_autolink.h>
# endif
# if !defined(JSON_NO_AUTOLINK) && !defined(JSON_DLL_BUILD) && !defined(JSON_IN_CPPTL)
# define CPPTL_AUTOLINK_NAME "json"
# undef CPPTL_AUTOLINK_DLL
# ifdef JSON_DLL
# define CPPTL_AUTOLINK_DLL
# endif
# include "autolink.h"
# endif
#endif // JSON_AUTOLINK_H_INCLUDED

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@@ -1,96 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSON_CONFIG_H_INCLUDED
# define JSON_CONFIG_H_INCLUDED
/// If defined, indicates that json library is embedded in CppTL library.
//# define JSON_IN_CPPTL 1
/// If defined, indicates that json may leverage CppTL library
//# define JSON_USE_CPPTL 1
/// If defined, indicates that cpptl vector based map should be used instead of std::map
/// as Value container.
//# define JSON_USE_CPPTL_SMALLMAP 1
/// If defined, indicates that Json specific container should be used
/// (hash table & simple deque container with customizable allocator).
/// THIS FEATURE IS STILL EXPERIMENTAL! There is know bugs: See #3177332
//# define JSON_VALUE_USE_INTERNAL_MAP 1
/// Force usage of standard new/malloc based allocator instead of memory pool based allocator.
/// The memory pools allocator used optimization (initializing Value and ValueInternalLink
/// as if it was a POD) that may cause some validation tool to report errors.
/// Only has effects if JSON_VALUE_USE_INTERNAL_MAP is defined.
//# define JSON_USE_SIMPLE_INTERNAL_ALLOCATOR 1
/// If defined, indicates that Json use exception to report invalid type manipulation
/// instead of C assert macro.
# define JSON_USE_EXCEPTION 1
/// If defined, indicates that the source file is amalgated
/// to prevent private header inclusion.
/// Remarks: it is automatically defined in the generated amalgated header.
// #define JSON_IS_AMALGAMATION
# ifdef JSON_IN_CPPTL
# include <cpptl/config.h>
# ifndef JSON_USE_CPPTL
# define JSON_USE_CPPTL 1
# endif
# endif
# ifdef JSON_IN_CPPTL
# define JSON_API CPPTL_API
# elif defined(JSON_DLL_BUILD)
# define JSON_API __declspec(dllexport)
# elif defined(JSON_DLL)
# define JSON_API __declspec(dllimport)
# else
# define JSON_API
# endif
// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for integer
// Storages, and 64 bits integer support is disabled.
// #define JSON_NO_INT64 1
#if defined(_MSC_VER) && _MSC_VER <= 1200 // MSVC 6
// Microsoft Visual Studio 6 only support conversion from __int64 to double
// (no conversion from unsigned __int64).
#define JSON_USE_INT64_DOUBLE_CONVERSION 1
#endif // if defined(_MSC_VER) && _MSC_VER < 1200 // MSVC 6
#if defined(_MSC_VER) && _MSC_VER >= 1500 // MSVC 2008
/// Indicates that the following function is deprecated.
# define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
#endif
#if !defined(JSONCPP_DEPRECATED)
# define JSONCPP_DEPRECATED(message)
#endif // if !defined(JSONCPP_DEPRECATED)
namespace Json {
typedef int Int;
typedef unsigned int UInt;
# if defined(JSON_NO_INT64)
typedef int LargestInt;
typedef unsigned int LargestUInt;
# undef JSON_HAS_INT64
# else // if defined(JSON_NO_INT64)
// For Microsoft Visual use specific types as long long is not supported
# if defined(_MSC_VER) // Microsoft Visual Studio
typedef __int64 Int64;
typedef unsigned __int64 UInt64;
# else // if defined(_MSC_VER) // Other platforms, use long long
typedef long long int Int64;
typedef unsigned long long int UInt64;
# endif // if defined(_MSC_VER)
typedef Int64 LargestInt;
typedef UInt64 LargestUInt;
# define JSON_HAS_INT64
# endif // if defined(JSON_NO_INT64)
} // end namespace Json
#endif // JSON_CONFIG_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef CPPTL_JSON_FEATURES_H_INCLUDED
# define CPPTL_JSON_FEATURES_H_INCLUDED
#if !defined(JSON_IS_AMALGAMATION)
# include "forwards.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
namespace Json {
/** \brief Configuration passed to reader and writer.
* This configuration object can be used to force the Reader or Writer
* to behave in a standard conforming way.
*/
class JSON_API Features
{
public:
/** \brief A configuration that allows all features and assumes all strings are UTF-8.
* - C & C++ comments are allowed
* - Root object can be any JSON value
* - Assumes Value strings are encoded in UTF-8
*/
static Features all();
/** \brief A configuration that is strictly compatible with the JSON specification.
* - Comments are forbidden.
* - Root object must be either an array or an object value.
* - Assumes Value strings are encoded in UTF-8
*/
static Features strictMode();
/** \brief Initialize the configuration like JsonConfig::allFeatures;
*/
Features();
/// \c true if comments are allowed. Default: \c true.
bool allowComments_;
/// \c true if root must be either an array or an object value. Default: \c false.
bool strictRoot_;
};
} // namespace Json
#endif // CPPTL_JSON_FEATURES_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSON_FORWARDS_H_INCLUDED
# define JSON_FORWARDS_H_INCLUDED
#if !defined(JSON_IS_AMALGAMATION)
# include "config.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
namespace Json {
// writer.h
class FastWriter;
class StyledWriter;
// reader.h
class Reader;
// features.h
class Features;
// value.h
typedef unsigned int ArrayIndex;
class StaticString;
class Path;
class PathArgument;
class Value;
class ValueIteratorBase;
class ValueIterator;
class ValueConstIterator;
#ifdef JSON_VALUE_USE_INTERNAL_MAP
class ValueMapAllocator;
class ValueInternalLink;
class ValueInternalArray;
class ValueInternalMap;
#endif // #ifdef JSON_VALUE_USE_INTERNAL_MAP
} // namespace Json
#endif // JSON_FORWARDS_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSON_JSON_H_INCLUDED
# define JSON_JSON_H_INCLUDED
# include "autolink.h"
# include "value.h"
# include "reader.h"
# include "writer.h"
# include "features.h"
#endif // JSON_JSON_H_INCLUDED

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@@ -1,214 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef CPPTL_JSON_READER_H_INCLUDED
# define CPPTL_JSON_READER_H_INCLUDED
#if !defined(JSON_IS_AMALGAMATION)
# include "features.h"
# include "value.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
# include <deque>
# include <stack>
# include <string>
# include <iostream>
namespace Json {
/** \brief Unserialize a <a HREF="http://www.json.org">JSON</a> document into a Value.
*
*/
class JSON_API Reader
{
public:
typedef char Char;
typedef const Char *Location;
/** \brief Constructs a Reader allowing all features
* for parsing.
*/
Reader();
/** \brief Constructs a Reader allowing the specified feature set
* for parsing.
*/
Reader( const Features &features );
/** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a> document.
* \param document UTF-8 encoded string containing the document to read.
* \param root [out] Contains the root value of the document if it was
* successfully parsed.
* \param collectComments \c true to collect comment and allow writing them back during
* serialization, \c false to discard comments.
* This parameter is ignored if Features::allowComments_
* is \c false.
* \return \c true if the document was successfully parsed, \c false if an error occurred.
*/
bool parse( const std::string &document,
Value &root,
bool collectComments = true );
/** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a> document.
* \param beginDoc Pointer on the beginning of the UTF-8 encoded string of the document to read.
* \param endDoc Pointer on the end of the UTF-8 encoded string of the document to read.
\ Must be >= beginDoc.
* \param root [out] Contains the root value of the document if it was
* successfully parsed.
* \param collectComments \c true to collect comment and allow writing them back during
* serialization, \c false to discard comments.
* This parameter is ignored if Features::allowComments_
* is \c false.
* \return \c true if the document was successfully parsed, \c false if an error occurred.
*/
bool parse( const char *beginDoc, const char *endDoc,
Value &root,
bool collectComments = true );
/// \brief Parse from input stream.
/// \see Json::operator>>(std::istream&, Json::Value&).
bool parse( std::istream &is,
Value &root,
bool collectComments = true );
/** \brief Returns a user friendly string that list errors in the parsed document.
* \return Formatted error message with the list of errors with their location in
* the parsed document. An empty string is returned if no error occurred
* during parsing.
* \deprecated Use getFormattedErrorMessages() instead (typo fix).
*/
JSONCPP_DEPRECATED("Use getFormattedErrorMessages instead")
std::string getFormatedErrorMessages() const;
/** \brief Returns a user friendly string that list errors in the parsed document.
* \return Formatted error message with the list of errors with their location in
* the parsed document. An empty string is returned if no error occurred
* during parsing.
*/
std::string getFormattedErrorMessages() const;
private:
enum TokenType
{
tokenEndOfStream = 0,
tokenObjectBegin,
tokenObjectEnd,
tokenArrayBegin,
tokenArrayEnd,
tokenString,
tokenNumber,
tokenTrue,
tokenFalse,
tokenNull,
tokenArraySeparator,
tokenMemberSeparator,
tokenComment,
tokenError
};
class Token
{
public:
TokenType type_;
Location start_;
Location end_;
};
class ErrorInfo
{
public:
Token token_;
std::string message_;
Location extra_;
};
typedef std::deque<ErrorInfo> Errors;
bool expectToken( TokenType type, Token &token, const char *message );
bool readToken( Token &token );
void skipSpaces();
bool match( Location pattern,
int patternLength );
bool readComment();
bool readCStyleComment();
bool readCppStyleComment();
bool readString();
void readNumber();
bool readValue();
bool readObject( Token &token );
bool readArray( Token &token );
bool decodeNumber( Token &token );
bool decodeString( Token &token );
bool decodeString( Token &token, std::string &decoded );
bool decodeDouble( Token &token );
bool decodeUnicodeCodePoint( Token &token,
Location &current,
Location end,
unsigned int &unicode );
bool decodeUnicodeEscapeSequence( Token &token,
Location &current,
Location end,
unsigned int &unicode );
bool addError( const std::string &message,
Token &token,
Location extra = 0 );
bool recoverFromError( TokenType skipUntilToken );
bool addErrorAndRecover( const std::string &message,
Token &token,
TokenType skipUntilToken );
void skipUntilSpace();
Value &currentValue();
Char getNextChar();
void getLocationLineAndColumn( Location location,
int &line,
int &column ) const;
std::string getLocationLineAndColumn( Location location ) const;
void addComment( Location begin,
Location end,
CommentPlacement placement );
void skipCommentTokens( Token &token );
typedef std::stack<Value *> Nodes;
Nodes nodes_;
Errors errors_;
std::string document_;
Location begin_;
Location end_;
Location current_;
Location lastValueEnd_;
Value *lastValue_;
std::string commentsBefore_;
Features features_;
bool collectComments_;
};
/** \brief Read from 'sin' into 'root'.
Always keep comments from the input JSON.
This can be used to read a file into a particular sub-object.
For example:
\code
Json::Value root;
cin >> root["dir"]["file"];
cout << root;
\endcode
Result:
\verbatim
{
"dir": {
"file": {
// The input stream JSON would be nested here.
}
}
}
\endverbatim
\throw std::exception on parse error.
\see Json::operator<<()
*/
std::istream& operator>>( std::istream&, Value& );
} // namespace Json
#endif // CPPTL_JSON_READER_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSON_WRITER_H_INCLUDED
# define JSON_WRITER_H_INCLUDED
#if !defined(JSON_IS_AMALGAMATION)
# include "value.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
# include <vector>
# include <string>
# include <iostream>
namespace Json {
class Value;
/** \brief Abstract class for writers.
*/
class JSON_API Writer
{
public:
virtual ~Writer();
virtual std::string write( const Value &root ) = 0;
};
/** \brief Outputs a Value in <a HREF="http://www.json.org">JSON</a> format without formatting (not human friendly).
*
* The JSON document is written in a single line. It is not intended for 'human' consumption,
* but may be usefull to support feature such as RPC where bandwith is limited.
* \sa Reader, Value
*/
class JSON_API FastWriter : public Writer
{
public:
FastWriter();
virtual ~FastWriter(){}
void enableYAMLCompatibility();
public: // overridden from Writer
virtual std::string write( const Value &root );
private:
void writeValue( const Value &value );
std::string document_;
bool yamlCompatiblityEnabled_;
};
/** \brief Writes a Value in <a HREF="http://www.json.org">JSON</a> format in a human friendly way.
*
* The rules for line break and indent are as follow:
* - Object value:
* - if empty then print {} without indent and line break
* - if not empty the print '{', line break & indent, print one value per line
* and then unindent and line break and print '}'.
* - Array value:
* - if empty then print [] without indent and line break
* - if the array contains no object value, empty array or some other value types,
* and all the values fit on one lines, then print the array on a single line.
* - otherwise, it the values do not fit on one line, or the array contains
* object or non empty array, then print one value per line.
*
* If the Value have comments then they are outputed according to their #CommentPlacement.
*
* \sa Reader, Value, Value::setComment()
*/
class JSON_API StyledWriter: public Writer
{
public:
StyledWriter();
virtual ~StyledWriter(){}
public: // overridden from Writer
/** \brief Serialize a Value in <a HREF="http://www.json.org">JSON</a> format.
* \param root Value to serialize.
* \return String containing the JSON document that represents the root value.
*/
virtual std::string write( const Value &root );
private:
void writeValue( const Value &value );
void writeArrayValue( const Value &value );
bool isMultineArray( const Value &value );
void pushValue( const std::string &value );
void writeIndent();
void writeWithIndent( const std::string &value );
void indent();
void unindent();
void writeCommentBeforeValue( const Value &root );
void writeCommentAfterValueOnSameLine( const Value &root );
bool hasCommentForValue( const Value &value );
static std::string normalizeEOL( const std::string &text );
typedef std::vector<std::string> ChildValues;
ChildValues childValues_;
std::string document_;
std::string indentString_;
int rightMargin_;
int indentSize_;
bool addChildValues_;
};
/** \brief Writes a Value in <a HREF="http://www.json.org">JSON</a> format in a human friendly way,
to a stream rather than to a string.
*
* The rules for line break and indent are as follow:
* - Object value:
* - if empty then print {} without indent and line break
* - if not empty the print '{', line break & indent, print one value per line
* and then unindent and line break and print '}'.
* - Array value:
* - if empty then print [] without indent and line break
* - if the array contains no object value, empty array or some other value types,
* and all the values fit on one lines, then print the array on a single line.
* - otherwise, it the values do not fit on one line, or the array contains
* object or non empty array, then print one value per line.
*
* If the Value have comments then they are outputed according to their #CommentPlacement.
*
* \param indentation Each level will be indented by this amount extra.
* \sa Reader, Value, Value::setComment()
*/
class JSON_API StyledStreamWriter
{
public:
StyledStreamWriter( std::string indentation="\t" );
~StyledStreamWriter(){}
public:
/** \brief Serialize a Value in <a HREF="http://www.json.org">JSON</a> format.
* \param out Stream to write to. (Can be ostringstream, e.g.)
* \param root Value to serialize.
* \note There is no point in deriving from Writer, since write() should not return a value.
*/
void write( std::ostream &out, const Value &root );
private:
void writeValue( const Value &value );
void writeArrayValue( const Value &value );
bool isMultineArray( const Value &value );
void pushValue( const std::string &value );
void writeIndent();
void writeWithIndent( const std::string &value );
void indent();
void unindent();
void writeCommentBeforeValue( const Value &root );
void writeCommentAfterValueOnSameLine( const Value &root );
bool hasCommentForValue( const Value &value );
static std::string normalizeEOL( const std::string &text );
typedef std::vector<std::string> ChildValues;
ChildValues childValues_;
std::ostream* document_;
std::string indentString_;
int rightMargin_;
std::string indentation_;
bool addChildValues_;
};
# if defined(JSON_HAS_INT64)
std::string JSON_API valueToString( Int value );
std::string JSON_API valueToString( UInt value );
# endif // if defined(JSON_HAS_INT64)
std::string JSON_API valueToString( LargestInt value );
std::string JSON_API valueToString( LargestUInt value );
std::string JSON_API valueToString( double value );
std::string JSON_API valueToString( bool value );
std::string JSON_API valueToQuotedString( const char *value );
/// \brief Output using the StyledStreamWriter.
/// \see Json::operator>>()
std::ostream& operator<<( std::ostream&, const Value &root );
} // namespace Json
#endif // JSON_WRITER_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef JSONCPP_BATCHALLOCATOR_H_INCLUDED
# define JSONCPP_BATCHALLOCATOR_H_INCLUDED
# include <stdlib.h>
# include <assert.h>
# ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
namespace Json {
/* Fast memory allocator.
*
* This memory allocator allocates memory for a batch of object (specified by
* the page size, the number of object in each page).
*
* It does not allow the destruction of a single object. All the allocated objects
* can be destroyed at once. The memory can be either released or reused for future
* allocation.
*
* The in-place new operator must be used to construct the object using the pointer
* returned by allocate.
*/
template<typename AllocatedType
,const unsigned int objectPerAllocation>
class BatchAllocator
{
public:
typedef AllocatedType Type;
BatchAllocator( unsigned int objectsPerPage = 255 )
: freeHead_( 0 )
, objectsPerPage_( objectsPerPage )
{
// printf( "Size: %d => %s\n", sizeof(AllocatedType), typeid(AllocatedType).name() );
assert( sizeof(AllocatedType) * objectPerAllocation >= sizeof(AllocatedType *) ); // We must be able to store a slist in the object free space.
assert( objectsPerPage >= 16 );
batches_ = allocateBatch( 0 ); // allocated a dummy page
currentBatch_ = batches_;
}
~BatchAllocator()
{
for ( BatchInfo *batch = batches_; batch; )
{
BatchInfo *nextBatch = batch->next_;
free( batch );
batch = nextBatch;
}
}
/// allocate space for an array of objectPerAllocation object.
/// @warning it is the responsability of the caller to call objects constructors.
AllocatedType *allocate()
{
if ( freeHead_ ) // returns node from free list.
{
AllocatedType *object = freeHead_;
freeHead_ = *(AllocatedType **)object;
return object;
}
if ( currentBatch_->used_ == currentBatch_->end_ )
{
currentBatch_ = currentBatch_->next_;
while ( currentBatch_ && currentBatch_->used_ == currentBatch_->end_ )
currentBatch_ = currentBatch_->next_;
if ( !currentBatch_ ) // no free batch found, allocate a new one
{
currentBatch_ = allocateBatch( objectsPerPage_ );
currentBatch_->next_ = batches_; // insert at the head of the list
batches_ = currentBatch_;
}
}
AllocatedType *allocated = currentBatch_->used_;
currentBatch_->used_ += objectPerAllocation;
return allocated;
}
/// Release the object.
/// @warning it is the responsability of the caller to actually destruct the object.
void release( AllocatedType *object )
{
assert( object != 0 );
*(AllocatedType **)object = freeHead_;
freeHead_ = object;
}
private:
struct BatchInfo
{
BatchInfo *next_;
AllocatedType *used_;
AllocatedType *end_;
AllocatedType buffer_[objectPerAllocation];
};
// disabled copy constructor and assignement operator.
BatchAllocator( const BatchAllocator & );
void operator =( const BatchAllocator &);
static BatchInfo *allocateBatch( unsigned int objectsPerPage )
{
const unsigned int mallocSize = sizeof(BatchInfo) - sizeof(AllocatedType)* objectPerAllocation
+ sizeof(AllocatedType) * objectPerAllocation * objectsPerPage;
BatchInfo *batch = static_cast<BatchInfo*>( malloc( mallocSize ) );
batch->next_ = 0;
batch->used_ = batch->buffer_;
batch->end_ = batch->buffer_ + objectsPerPage;
return batch;
}
BatchInfo *batches_;
BatchInfo *currentBatch_;
/// Head of a single linked list within the allocated space of freeed object
AllocatedType *freeHead_;
unsigned int objectsPerPage_;
};
} // namespace Json
# endif // ifndef JSONCPP_DOC_INCLUDE_IMPLEMENTATION
#endif // JSONCPP_BATCHALLOCATOR_H_INCLUDED

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
// included by json_value.cpp
namespace Json {
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueInternalArray
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueArrayAllocator::~ValueArrayAllocator()
{
}
// //////////////////////////////////////////////////////////////////
// class DefaultValueArrayAllocator
// //////////////////////////////////////////////////////////////////
#ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
class DefaultValueArrayAllocator : public ValueArrayAllocator
{
public: // overridden from ValueArrayAllocator
virtual ~DefaultValueArrayAllocator()
{
}
virtual ValueInternalArray *newArray()
{
return new ValueInternalArray();
}
virtual ValueInternalArray *newArrayCopy( const ValueInternalArray &other )
{
return new ValueInternalArray( other );
}
virtual void destructArray( ValueInternalArray *array )
{
delete array;
}
virtual void reallocateArrayPageIndex( Value **&indexes,
ValueInternalArray::PageIndex &indexCount,
ValueInternalArray::PageIndex minNewIndexCount )
{
ValueInternalArray::PageIndex newIndexCount = (indexCount*3)/2 + 1;
if ( minNewIndexCount > newIndexCount )
newIndexCount = minNewIndexCount;
void *newIndexes = realloc( indexes, sizeof(Value*) * newIndexCount );
if ( !newIndexes )
throw std::bad_alloc();
indexCount = newIndexCount;
indexes = static_cast<Value **>( newIndexes );
}
virtual void releaseArrayPageIndex( Value **indexes,
ValueInternalArray::PageIndex indexCount )
{
if ( indexes )
free( indexes );
}
virtual Value *allocateArrayPage()
{
return static_cast<Value *>( malloc( sizeof(Value) * ValueInternalArray::itemsPerPage ) );
}
virtual void releaseArrayPage( Value *value )
{
if ( value )
free( value );
}
};
#else // #ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
/// @todo make this thread-safe (lock when accessign batch allocator)
class DefaultValueArrayAllocator : public ValueArrayAllocator
{
public: // overridden from ValueArrayAllocator
virtual ~DefaultValueArrayAllocator()
{
}
virtual ValueInternalArray *newArray()
{
ValueInternalArray *array = arraysAllocator_.allocate();
new (array) ValueInternalArray(); // placement new
return array;
}
virtual ValueInternalArray *newArrayCopy( const ValueInternalArray &other )
{
ValueInternalArray *array = arraysAllocator_.allocate();
new (array) ValueInternalArray( other ); // placement new
return array;
}
virtual void destructArray( ValueInternalArray *array )
{
if ( array )
{
array->~ValueInternalArray();
arraysAllocator_.release( array );
}
}
virtual void reallocateArrayPageIndex( Value **&indexes,
ValueInternalArray::PageIndex &indexCount,
ValueInternalArray::PageIndex minNewIndexCount )
{
ValueInternalArray::PageIndex newIndexCount = (indexCount*3)/2 + 1;
if ( minNewIndexCount > newIndexCount )
newIndexCount = minNewIndexCount;
void *newIndexes = realloc( indexes, sizeof(Value*) * newIndexCount );
if ( !newIndexes )
throw std::bad_alloc();
indexCount = newIndexCount;
indexes = static_cast<Value **>( newIndexes );
}
virtual void releaseArrayPageIndex( Value **indexes,
ValueInternalArray::PageIndex indexCount )
{
if ( indexes )
free( indexes );
}
virtual Value *allocateArrayPage()
{
return static_cast<Value *>( pagesAllocator_.allocate() );
}
virtual void releaseArrayPage( Value *value )
{
if ( value )
pagesAllocator_.release( value );
}
private:
BatchAllocator<ValueInternalArray,1> arraysAllocator_;
BatchAllocator<Value,ValueInternalArray::itemsPerPage> pagesAllocator_;
};
#endif // #ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
static ValueArrayAllocator *&arrayAllocator()
{
static DefaultValueArrayAllocator defaultAllocator;
static ValueArrayAllocator *arrayAllocator = &defaultAllocator;
return arrayAllocator;
}
static struct DummyArrayAllocatorInitializer {
DummyArrayAllocatorInitializer()
{
arrayAllocator(); // ensure arrayAllocator() statics are initialized before main().
}
} dummyArrayAllocatorInitializer;
// //////////////////////////////////////////////////////////////////
// class ValueInternalArray
// //////////////////////////////////////////////////////////////////
bool
ValueInternalArray::equals( const IteratorState &x,
const IteratorState &other )
{
return x.array_ == other.array_
&& x.currentItemIndex_ == other.currentItemIndex_
&& x.currentPageIndex_ == other.currentPageIndex_;
}
void
ValueInternalArray::increment( IteratorState &it )
{
JSON_ASSERT_MESSAGE( it.array_ &&
(it.currentPageIndex_ - it.array_->pages_)*itemsPerPage + it.currentItemIndex_
!= it.array_->size_,
"ValueInternalArray::increment(): moving iterator beyond end" );
++(it.currentItemIndex_);
if ( it.currentItemIndex_ == itemsPerPage )
{
it.currentItemIndex_ = 0;
++(it.currentPageIndex_);
}
}
void
ValueInternalArray::decrement( IteratorState &it )
{
JSON_ASSERT_MESSAGE( it.array_ && it.currentPageIndex_ == it.array_->pages_
&& it.currentItemIndex_ == 0,
"ValueInternalArray::decrement(): moving iterator beyond end" );
if ( it.currentItemIndex_ == 0 )
{
it.currentItemIndex_ = itemsPerPage-1;
--(it.currentPageIndex_);
}
else
{
--(it.currentItemIndex_);
}
}
Value &
ValueInternalArray::unsafeDereference( const IteratorState &it )
{
return (*(it.currentPageIndex_))[it.currentItemIndex_];
}
Value &
ValueInternalArray::dereference( const IteratorState &it )
{
JSON_ASSERT_MESSAGE( it.array_ &&
(it.currentPageIndex_ - it.array_->pages_)*itemsPerPage + it.currentItemIndex_
< it.array_->size_,
"ValueInternalArray::dereference(): dereferencing invalid iterator" );
return unsafeDereference( it );
}
void
ValueInternalArray::makeBeginIterator( IteratorState &it ) const
{
it.array_ = const_cast<ValueInternalArray *>( this );
it.currentItemIndex_ = 0;
it.currentPageIndex_ = pages_;
}
void
ValueInternalArray::makeIterator( IteratorState &it, ArrayIndex index ) const
{
it.array_ = const_cast<ValueInternalArray *>( this );
it.currentItemIndex_ = index % itemsPerPage;
it.currentPageIndex_ = pages_ + index / itemsPerPage;
}
void
ValueInternalArray::makeEndIterator( IteratorState &it ) const
{
makeIterator( it, size_ );
}
ValueInternalArray::ValueInternalArray()
: pages_( 0 )
, size_( 0 )
, pageCount_( 0 )
{
}
ValueInternalArray::ValueInternalArray( const ValueInternalArray &other )
: pages_( 0 )
, pageCount_( 0 )
, size_( other.size_ )
{
PageIndex minNewPages = other.size_ / itemsPerPage;
arrayAllocator()->reallocateArrayPageIndex( pages_, pageCount_, minNewPages );
JSON_ASSERT_MESSAGE( pageCount_ >= minNewPages,
"ValueInternalArray::reserve(): bad reallocation" );
IteratorState itOther;
other.makeBeginIterator( itOther );
Value *value;
for ( ArrayIndex index = 0; index < size_; ++index, increment(itOther) )
{
if ( index % itemsPerPage == 0 )
{
PageIndex pageIndex = index / itemsPerPage;
value = arrayAllocator()->allocateArrayPage();
pages_[pageIndex] = value;
}
new (value) Value( dereference( itOther ) );
}
}
ValueInternalArray &
ValueInternalArray::operator =( const ValueInternalArray &other )
{
ValueInternalArray temp( other );
swap( temp );
return *this;
}
ValueInternalArray::~ValueInternalArray()
{
// destroy all constructed items
IteratorState it;
IteratorState itEnd;
makeBeginIterator( it);
makeEndIterator( itEnd );
for ( ; !equals(it,itEnd); increment(it) )
{
Value *value = &dereference(it);
value->~Value();
}
// release all pages
PageIndex lastPageIndex = size_ / itemsPerPage;
for ( PageIndex pageIndex = 0; pageIndex < lastPageIndex; ++pageIndex )
arrayAllocator()->releaseArrayPage( pages_[pageIndex] );
// release pages index
arrayAllocator()->releaseArrayPageIndex( pages_, pageCount_ );
}
void
ValueInternalArray::swap( ValueInternalArray &other )
{
Value **tempPages = pages_;
pages_ = other.pages_;
other.pages_ = tempPages;
ArrayIndex tempSize = size_;
size_ = other.size_;
other.size_ = tempSize;
PageIndex tempPageCount = pageCount_;
pageCount_ = other.pageCount_;
other.pageCount_ = tempPageCount;
}
void
ValueInternalArray::clear()
{
ValueInternalArray dummy;
swap( dummy );
}
void
ValueInternalArray::resize( ArrayIndex newSize )
{
if ( newSize == 0 )
clear();
else if ( newSize < size_ )
{
IteratorState it;
IteratorState itEnd;
makeIterator( it, newSize );
makeIterator( itEnd, size_ );
for ( ; !equals(it,itEnd); increment(it) )
{
Value *value = &dereference(it);
value->~Value();
}
PageIndex pageIndex = (newSize + itemsPerPage - 1) / itemsPerPage;
PageIndex lastPageIndex = size_ / itemsPerPage;
for ( ; pageIndex < lastPageIndex; ++pageIndex )
arrayAllocator()->releaseArrayPage( pages_[pageIndex] );
size_ = newSize;
}
else if ( newSize > size_ )
resolveReference( newSize );
}
void
ValueInternalArray::makeIndexValid( ArrayIndex index )
{
// Need to enlarge page index ?
if ( index >= pageCount_ * itemsPerPage )
{
PageIndex minNewPages = (index + 1) / itemsPerPage;
arrayAllocator()->reallocateArrayPageIndex( pages_, pageCount_, minNewPages );
JSON_ASSERT_MESSAGE( pageCount_ >= minNewPages, "ValueInternalArray::reserve(): bad reallocation" );
}
// Need to allocate new pages ?
ArrayIndex nextPageIndex =
(size_ % itemsPerPage) != 0 ? size_ - (size_%itemsPerPage) + itemsPerPage
: size_;
if ( nextPageIndex <= index )
{
PageIndex pageIndex = nextPageIndex / itemsPerPage;
PageIndex pageToAllocate = (index - nextPageIndex) / itemsPerPage + 1;
for ( ; pageToAllocate-- > 0; ++pageIndex )
pages_[pageIndex] = arrayAllocator()->allocateArrayPage();
}
// Initialize all new entries
IteratorState it;
IteratorState itEnd;
makeIterator( it, size_ );
size_ = index + 1;
makeIterator( itEnd, size_ );
for ( ; !equals(it,itEnd); increment(it) )
{
Value *value = &dereference(it);
new (value) Value(); // Construct a default value using placement new
}
}
Value &
ValueInternalArray::resolveReference( ArrayIndex index )
{
if ( index >= size_ )
makeIndexValid( index );
return pages_[index/itemsPerPage][index%itemsPerPage];
}
Value *
ValueInternalArray::find( ArrayIndex index ) const
{
if ( index >= size_ )
return 0;
return &(pages_[index/itemsPerPage][index%itemsPerPage]);
}
ValueInternalArray::ArrayIndex
ValueInternalArray::size() const
{
return size_;
}
int
ValueInternalArray::distance( const IteratorState &x, const IteratorState &y )
{
return indexOf(y) - indexOf(x);
}
ValueInternalArray::ArrayIndex
ValueInternalArray::indexOf( const IteratorState &iterator )
{
if ( !iterator.array_ )
return ArrayIndex(-1);
return ArrayIndex(
(iterator.currentPageIndex_ - iterator.array_->pages_) * itemsPerPage
+ iterator.currentItemIndex_ );
}
int
ValueInternalArray::compare( const ValueInternalArray &other ) const
{
int sizeDiff( size_ - other.size_ );
if ( sizeDiff != 0 )
return sizeDiff;
for ( ArrayIndex index =0; index < size_; ++index )
{
int diff = pages_[index/itemsPerPage][index%itemsPerPage].compare(
other.pages_[index/itemsPerPage][index%itemsPerPage] );
if ( diff != 0 )
return diff;
}
return 0;
}
} // namespace Json

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
// included by json_value.cpp
namespace Json {
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueInternalMap
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
/** \internal MUST be safely initialized using memset( this, 0, sizeof(ValueInternalLink) );
* This optimization is used by the fast allocator.
*/
ValueInternalLink::ValueInternalLink()
: previous_( 0 )
, next_( 0 )
{
}
ValueInternalLink::~ValueInternalLink()
{
for ( int index =0; index < itemPerLink; ++index )
{
if ( !items_[index].isItemAvailable() )
{
if ( !items_[index].isMemberNameStatic() )
free( keys_[index] );
}
else
break;
}
}
ValueMapAllocator::~ValueMapAllocator()
{
}
#ifdef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
class DefaultValueMapAllocator : public ValueMapAllocator
{
public: // overridden from ValueMapAllocator
virtual ValueInternalMap *newMap()
{
return new ValueInternalMap();
}
virtual ValueInternalMap *newMapCopy( const ValueInternalMap &other )
{
return new ValueInternalMap( other );
}
virtual void destructMap( ValueInternalMap *map )
{
delete map;
}
virtual ValueInternalLink *allocateMapBuckets( unsigned int size )
{
return new ValueInternalLink[size];
}
virtual void releaseMapBuckets( ValueInternalLink *links )
{
delete [] links;
}
virtual ValueInternalLink *allocateMapLink()
{
return new ValueInternalLink();
}
virtual void releaseMapLink( ValueInternalLink *link )
{
delete link;
}
};
#else
/// @todo make this thread-safe (lock when accessign batch allocator)
class DefaultValueMapAllocator : public ValueMapAllocator
{
public: // overridden from ValueMapAllocator
virtual ValueInternalMap *newMap()
{
ValueInternalMap *map = mapsAllocator_.allocate();
new (map) ValueInternalMap(); // placement new
return map;
}
virtual ValueInternalMap *newMapCopy( const ValueInternalMap &other )
{
ValueInternalMap *map = mapsAllocator_.allocate();
new (map) ValueInternalMap( other ); // placement new
return map;
}
virtual void destructMap( ValueInternalMap *map )
{
if ( map )
{
map->~ValueInternalMap();
mapsAllocator_.release( map );
}
}
virtual ValueInternalLink *allocateMapBuckets( unsigned int size )
{
return new ValueInternalLink[size];
}
virtual void releaseMapBuckets( ValueInternalLink *links )
{
delete [] links;
}
virtual ValueInternalLink *allocateMapLink()
{
ValueInternalLink *link = linksAllocator_.allocate();
memset( link, 0, sizeof(ValueInternalLink) );
return link;
}
virtual void releaseMapLink( ValueInternalLink *link )
{
link->~ValueInternalLink();
linksAllocator_.release( link );
}
private:
BatchAllocator<ValueInternalMap,1> mapsAllocator_;
BatchAllocator<ValueInternalLink,1> linksAllocator_;
};
#endif
static ValueMapAllocator *&mapAllocator()
{
static DefaultValueMapAllocator defaultAllocator;
static ValueMapAllocator *mapAllocator = &defaultAllocator;
return mapAllocator;
}
static struct DummyMapAllocatorInitializer {
DummyMapAllocatorInitializer()
{
mapAllocator(); // ensure mapAllocator() statics are initialized before main().
}
} dummyMapAllocatorInitializer;
// h(K) = value * K >> w ; with w = 32 & K prime w.r.t. 2^32.
/*
use linked list hash map.
buckets array is a container.
linked list element contains 6 key/values. (memory = (16+4) * 6 + 4 = 124)
value have extra state: valid, available, deleted
*/
ValueInternalMap::ValueInternalMap()
: buckets_( 0 )
, tailLink_( 0 )
, bucketsSize_( 0 )
, itemCount_( 0 )
{
}
ValueInternalMap::ValueInternalMap( const ValueInternalMap &other )
: buckets_( 0 )
, tailLink_( 0 )
, bucketsSize_( 0 )
, itemCount_( 0 )
{
reserve( other.itemCount_ );
IteratorState it;
IteratorState itEnd;
other.makeBeginIterator( it );
other.makeEndIterator( itEnd );
for ( ; !equals(it,itEnd); increment(it) )
{
bool isStatic;
const char *memberName = key( it, isStatic );
const Value &aValue = value( it );
resolveReference(memberName, isStatic) = aValue;
}
}
ValueInternalMap &
ValueInternalMap::operator =( const ValueInternalMap &other )
{
ValueInternalMap dummy( other );
swap( dummy );
return *this;
}
ValueInternalMap::~ValueInternalMap()
{
if ( buckets_ )
{
for ( BucketIndex bucketIndex =0; bucketIndex < bucketsSize_; ++bucketIndex )
{
ValueInternalLink *link = buckets_[bucketIndex].next_;
while ( link )
{
ValueInternalLink *linkToRelease = link;
link = link->next_;
mapAllocator()->releaseMapLink( linkToRelease );
}
}
mapAllocator()->releaseMapBuckets( buckets_ );
}
}
void
ValueInternalMap::swap( ValueInternalMap &other )
{
ValueInternalLink *tempBuckets = buckets_;
buckets_ = other.buckets_;
other.buckets_ = tempBuckets;
ValueInternalLink *tempTailLink = tailLink_;
tailLink_ = other.tailLink_;
other.tailLink_ = tempTailLink;
BucketIndex tempBucketsSize = bucketsSize_;
bucketsSize_ = other.bucketsSize_;
other.bucketsSize_ = tempBucketsSize;
BucketIndex tempItemCount = itemCount_;
itemCount_ = other.itemCount_;
other.itemCount_ = tempItemCount;
}
void
ValueInternalMap::clear()
{
ValueInternalMap dummy;
swap( dummy );
}
ValueInternalMap::BucketIndex
ValueInternalMap::size() const
{
return itemCount_;
}
bool
ValueInternalMap::reserveDelta( BucketIndex growth )
{
return reserve( itemCount_ + growth );
}
bool
ValueInternalMap::reserve( BucketIndex newItemCount )
{
if ( !buckets_ && newItemCount > 0 )
{
buckets_ = mapAllocator()->allocateMapBuckets( 1 );
bucketsSize_ = 1;
tailLink_ = &buckets_[0];
}
// BucketIndex idealBucketCount = (newItemCount + ValueInternalLink::itemPerLink) / ValueInternalLink::itemPerLink;
return true;
}
const Value *
ValueInternalMap::find( const char *key ) const
{
if ( !bucketsSize_ )
return 0;
HashKey hashedKey = hash( key );
BucketIndex bucketIndex = hashedKey % bucketsSize_;
for ( const ValueInternalLink *current = &buckets_[bucketIndex];
current != 0;
current = current->next_ )
{
for ( BucketIndex index=0; index < ValueInternalLink::itemPerLink; ++index )
{
if ( current->items_[index].isItemAvailable() )
return 0;
if ( strcmp( key, current->keys_[index] ) == 0 )
return &current->items_[index];
}
}
return 0;
}
Value *
ValueInternalMap::find( const char *key )
{
const ValueInternalMap *constThis = this;
return const_cast<Value *>( constThis->find( key ) );
}
Value &
ValueInternalMap::resolveReference( const char *key,
bool isStatic )
{
HashKey hashedKey = hash( key );
if ( bucketsSize_ )
{
BucketIndex bucketIndex = hashedKey % bucketsSize_;
ValueInternalLink **previous = 0;
BucketIndex index;
for ( ValueInternalLink *current = &buckets_[bucketIndex];
current != 0;
previous = &current->next_, current = current->next_ )
{
for ( index=0; index < ValueInternalLink::itemPerLink; ++index )
{
if ( current->items_[index].isItemAvailable() )
return setNewItem( key, isStatic, current, index );
if ( strcmp( key, current->keys_[index] ) == 0 )
return current->items_[index];
}
}
}
reserveDelta( 1 );
return unsafeAdd( key, isStatic, hashedKey );
}
void
ValueInternalMap::remove( const char *key )
{
HashKey hashedKey = hash( key );
if ( !bucketsSize_ )
return;
BucketIndex bucketIndex = hashedKey % bucketsSize_;
for ( ValueInternalLink *link = &buckets_[bucketIndex];
link != 0;
link = link->next_ )
{
BucketIndex index;
for ( index =0; index < ValueInternalLink::itemPerLink; ++index )
{
if ( link->items_[index].isItemAvailable() )
return;
if ( strcmp( key, link->keys_[index] ) == 0 )
{
doActualRemove( link, index, bucketIndex );
return;
}
}
}
}
void
ValueInternalMap::doActualRemove( ValueInternalLink *link,
BucketIndex index,
BucketIndex bucketIndex )
{
// find last item of the bucket and swap it with the 'removed' one.
// set removed items flags to 'available'.
// if last page only contains 'available' items, then desallocate it (it's empty)
ValueInternalLink *&lastLink = getLastLinkInBucket( index );
BucketIndex lastItemIndex = 1; // a link can never be empty, so start at 1
for ( ;
lastItemIndex < ValueInternalLink::itemPerLink;
++lastItemIndex ) // may be optimized with dicotomic search
{
if ( lastLink->items_[lastItemIndex].isItemAvailable() )
break;
}
BucketIndex lastUsedIndex = lastItemIndex - 1;
Value *valueToDelete = &link->items_[index];
Value *valueToPreserve = &lastLink->items_[lastUsedIndex];
if ( valueToDelete != valueToPreserve )
valueToDelete->swap( *valueToPreserve );
if ( lastUsedIndex == 0 ) // page is now empty
{ // remove it from bucket linked list and delete it.
ValueInternalLink *linkPreviousToLast = lastLink->previous_;
if ( linkPreviousToLast != 0 ) // can not deleted bucket link.
{
mapAllocator()->releaseMapLink( lastLink );
linkPreviousToLast->next_ = 0;
lastLink = linkPreviousToLast;
}
}
else
{
Value dummy;
valueToPreserve->swap( dummy ); // restore deleted to default Value.
valueToPreserve->setItemUsed( false );
}
--itemCount_;
}
ValueInternalLink *&
ValueInternalMap::getLastLinkInBucket( BucketIndex bucketIndex )
{
if ( bucketIndex == bucketsSize_ - 1 )
return tailLink_;
ValueInternalLink *&previous = buckets_[bucketIndex+1].previous_;
if ( !previous )
previous = &buckets_[bucketIndex];
return previous;
}
Value &
ValueInternalMap::setNewItem( const char *key,
bool isStatic,
ValueInternalLink *link,
BucketIndex index )
{
char *duplicatedKey = makeMemberName( key );
++itemCount_;
link->keys_[index] = duplicatedKey;
link->items_[index].setItemUsed();
link->items_[index].setMemberNameIsStatic( isStatic );
return link->items_[index]; // items already default constructed.
}
Value &
ValueInternalMap::unsafeAdd( const char *key,
bool isStatic,
HashKey hashedKey )
{
JSON_ASSERT_MESSAGE( bucketsSize_ > 0, "ValueInternalMap::unsafeAdd(): internal logic error." );
BucketIndex bucketIndex = hashedKey % bucketsSize_;
ValueInternalLink *&previousLink = getLastLinkInBucket( bucketIndex );
ValueInternalLink *link = previousLink;
BucketIndex index;
for ( index =0; index < ValueInternalLink::itemPerLink; ++index )
{
if ( link->items_[index].isItemAvailable() )
break;
}
if ( index == ValueInternalLink::itemPerLink ) // need to add a new page
{
ValueInternalLink *newLink = mapAllocator()->allocateMapLink();
index = 0;
link->next_ = newLink;
previousLink = newLink;
link = newLink;
}
return setNewItem( key, isStatic, link, index );
}
ValueInternalMap::HashKey
ValueInternalMap::hash( const char *key ) const
{
HashKey hash = 0;
while ( *key )
hash += *key++ * 37;
return hash;
}
int
ValueInternalMap::compare( const ValueInternalMap &other ) const
{
int sizeDiff( itemCount_ - other.itemCount_ );
if ( sizeDiff != 0 )
return sizeDiff;
// Strict order guaranty is required. Compare all keys FIRST, then compare values.
IteratorState it;
IteratorState itEnd;
makeBeginIterator( it );
makeEndIterator( itEnd );
for ( ; !equals(it,itEnd); increment(it) )
{
if ( !other.find( key( it ) ) )
return 1;
}
// All keys are equals, let's compare values
makeBeginIterator( it );
for ( ; !equals(it,itEnd); increment(it) )
{
const Value *otherValue = other.find( key( it ) );
int valueDiff = value(it).compare( *otherValue );
if ( valueDiff != 0 )
return valueDiff;
}
return 0;
}
void
ValueInternalMap::makeBeginIterator( IteratorState &it ) const
{
it.map_ = const_cast<ValueInternalMap *>( this );
it.bucketIndex_ = 0;
it.itemIndex_ = 0;
it.link_ = buckets_;
}
void
ValueInternalMap::makeEndIterator( IteratorState &it ) const
{
it.map_ = const_cast<ValueInternalMap *>( this );
it.bucketIndex_ = bucketsSize_;
it.itemIndex_ = 0;
it.link_ = 0;
}
bool
ValueInternalMap::equals( const IteratorState &x, const IteratorState &other )
{
return x.map_ == other.map_
&& x.bucketIndex_ == other.bucketIndex_
&& x.link_ == other.link_
&& x.itemIndex_ == other.itemIndex_;
}
void
ValueInternalMap::incrementBucket( IteratorState &iterator )
{
++iterator.bucketIndex_;
JSON_ASSERT_MESSAGE( iterator.bucketIndex_ <= iterator.map_->bucketsSize_,
"ValueInternalMap::increment(): attempting to iterate beyond end." );
if ( iterator.bucketIndex_ == iterator.map_->bucketsSize_ )
iterator.link_ = 0;
else
iterator.link_ = &(iterator.map_->buckets_[iterator.bucketIndex_]);
iterator.itemIndex_ = 0;
}
void
ValueInternalMap::increment( IteratorState &iterator )
{
JSON_ASSERT_MESSAGE( iterator.map_, "Attempting to iterator using invalid iterator." );
++iterator.itemIndex_;
if ( iterator.itemIndex_ == ValueInternalLink::itemPerLink )
{
JSON_ASSERT_MESSAGE( iterator.link_ != 0,
"ValueInternalMap::increment(): attempting to iterate beyond end." );
iterator.link_ = iterator.link_->next_;
if ( iterator.link_ == 0 )
incrementBucket( iterator );
}
else if ( iterator.link_->items_[iterator.itemIndex_].isItemAvailable() )
{
incrementBucket( iterator );
}
}
void
ValueInternalMap::decrement( IteratorState &iterator )
{
if ( iterator.itemIndex_ == 0 )
{
JSON_ASSERT_MESSAGE( iterator.map_, "Attempting to iterate using invalid iterator." );
if ( iterator.link_ == &iterator.map_->buckets_[iterator.bucketIndex_] )
{
JSON_ASSERT_MESSAGE( iterator.bucketIndex_ > 0, "Attempting to iterate beyond beginning." );
--(iterator.bucketIndex_);
}
iterator.link_ = iterator.link_->previous_;
iterator.itemIndex_ = ValueInternalLink::itemPerLink - 1;
}
}
const char *
ValueInternalMap::key( const IteratorState &iterator )
{
JSON_ASSERT_MESSAGE( iterator.link_, "Attempting to iterate using invalid iterator." );
return iterator.link_->keys_[iterator.itemIndex_];
}
const char *
ValueInternalMap::key( const IteratorState &iterator, bool &isStatic )
{
JSON_ASSERT_MESSAGE( iterator.link_, "Attempting to iterate using invalid iterator." );
isStatic = iterator.link_->items_[iterator.itemIndex_].isMemberNameStatic();
return iterator.link_->keys_[iterator.itemIndex_];
}
Value &
ValueInternalMap::value( const IteratorState &iterator )
{
JSON_ASSERT_MESSAGE( iterator.link_, "Attempting to iterate using invalid iterator." );
return iterator.link_->items_[iterator.itemIndex_];
}
int
ValueInternalMap::distance( const IteratorState &x, const IteratorState &y )
{
int offset = 0;
IteratorState it = x;
while ( !equals( it, y ) )
increment( it );
return offset;
}
} // namespace Json

View File

@@ -1,880 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#if !defined(JSON_IS_AMALGAMATION)
# include <json/reader.h>
# include <json/value.h>
# include "json_tool.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
#include <utility>
#include <cstdio>
#include <cassert>
#include <cstring>
#include <iostream>
#include <stdexcept>
#if _MSC_VER >= 1400 // VC++ 8.0
#pragma warning( disable : 4996 ) // disable warning about strdup being deprecated.
#endif
namespace Json {
// Implementation of class Features
// ////////////////////////////////
Features::Features()
: allowComments_( true )
, strictRoot_( false )
{
}
Features
Features::all()
{
return Features();
}
Features
Features::strictMode()
{
Features features;
features.allowComments_ = false;
features.strictRoot_ = true;
return features;
}
// Implementation of class Reader
// ////////////////////////////////
static inline bool
in( Reader::Char c, Reader::Char c1, Reader::Char c2, Reader::Char c3, Reader::Char c4 )
{
return c == c1 || c == c2 || c == c3 || c == c4;
}
static inline bool
in( Reader::Char c, Reader::Char c1, Reader::Char c2, Reader::Char c3, Reader::Char c4, Reader::Char c5 )
{
return c == c1 || c == c2 || c == c3 || c == c4 || c == c5;
}
static bool
containsNewLine( Reader::Location begin,
Reader::Location end )
{
for ( ;begin < end; ++begin )
if ( *begin == '\n' || *begin == '\r' )
return true;
return false;
}
// Class Reader
// //////////////////////////////////////////////////////////////////
Reader::Reader()
: features_( Features::all() )
{
}
Reader::Reader( const Features &features )
: features_( features )
{
}
bool
Reader::parse( const std::string &document,
Value &root,
bool collectComments )
{
document_ = document;
const char *begin = document_.c_str();
const char *end = begin + document_.length();
return parse( begin, end, root, collectComments );
}
bool
Reader::parse( std::istream& sin,
Value &root,
bool collectComments )
{
//std::istream_iterator<char> begin(sin);
//std::istream_iterator<char> end;
// Those would allow streamed input from a file, if parse() were a
// template function.
// Since std::string is reference-counted, this at least does not
// create an extra copy.
std::string doc;
std::getline(sin, doc, (char)EOF);
return parse( doc, root, collectComments );
}
bool
Reader::parse( const char *beginDoc, const char *endDoc,
Value &root,
bool collectComments )
{
if ( !features_.allowComments_ )
{
collectComments = false;
}
begin_ = beginDoc;
end_ = endDoc;
collectComments_ = collectComments;
current_ = begin_;
lastValueEnd_ = 0;
lastValue_ = 0;
commentsBefore_ = "";
errors_.clear();
while ( !nodes_.empty() )
nodes_.pop();
nodes_.push( &root );
bool successful = readValue();
Token token;
skipCommentTokens( token );
if ( collectComments_ && !commentsBefore_.empty() )
root.setComment( commentsBefore_, commentAfter );
if ( features_.strictRoot_ )
{
if ( !root.isArray() && !root.isObject() )
{
// Set error location to start of doc, ideally should be first token found in doc
token.type_ = tokenError;
token.start_ = beginDoc;
token.end_ = endDoc;
addError( "A valid JSON document must be either an array or an object value.",
token );
return false;
}
}
return successful;
}
bool
Reader::readValue()
{
Token token;
skipCommentTokens( token );
bool successful = true;
if ( collectComments_ && !commentsBefore_.empty() )
{
currentValue().setComment( commentsBefore_, commentBefore );
commentsBefore_ = "";
}
switch ( token.type_ )
{
case tokenObjectBegin:
successful = readObject( token );
break;
case tokenArrayBegin:
successful = readArray( token );
break;
case tokenNumber:
successful = decodeNumber( token );
break;
case tokenString:
successful = decodeString( token );
break;
case tokenTrue:
currentValue() = true;
break;
case tokenFalse:
currentValue() = false;
break;
case tokenNull:
currentValue() = Value();
break;
default:
return addError( "Syntax error: value, object or array expected.", token );
}
if ( collectComments_ )
{
lastValueEnd_ = current_;
lastValue_ = &currentValue();
}
return successful;
}
void
Reader::skipCommentTokens( Token &token )
{
if ( features_.allowComments_ )
{
do
{
readToken( token );
}
while ( token.type_ == tokenComment );
}
else
{
readToken( token );
}
}
bool
Reader::expectToken( TokenType type, Token &token, const char *message )
{
readToken( token );
if ( token.type_ != type )
return addError( message, token );
return true;
}
bool
Reader::readToken( Token &token )
{
skipSpaces();
token.start_ = current_;
Char c = getNextChar();
bool ok = true;
switch ( c )
{
case '{':
token.type_ = tokenObjectBegin;
break;
case '}':
token.type_ = tokenObjectEnd;
break;
case '[':
token.type_ = tokenArrayBegin;
break;
case ']':
token.type_ = tokenArrayEnd;
break;
case '"':
token.type_ = tokenString;
ok = readString();
break;
case '/':
token.type_ = tokenComment;
ok = readComment();
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '-':
token.type_ = tokenNumber;
readNumber();
break;
case 't':
token.type_ = tokenTrue;
ok = match( "rue", 3 );
break;
case 'f':
token.type_ = tokenFalse;
ok = match( "alse", 4 );
break;
case 'n':
token.type_ = tokenNull;
ok = match( "ull", 3 );
break;
case ',':
token.type_ = tokenArraySeparator;
break;
case ':':
token.type_ = tokenMemberSeparator;
break;
case 0:
token.type_ = tokenEndOfStream;
break;
default:
ok = false;
break;
}
if ( !ok )
token.type_ = tokenError;
token.end_ = current_;
return true;
}
void
Reader::skipSpaces()
{
while ( current_ != end_ )
{
Char c = *current_;
if ( c == ' ' || c == '\t' || c == '\r' || c == '\n' )
++current_;
else
break;
}
}
bool
Reader::match( Location pattern,
int patternLength )
{
if ( end_ - current_ < patternLength )
return false;
int index = patternLength;
while ( index-- )
if ( current_[index] != pattern[index] )
return false;
current_ += patternLength;
return true;
}
bool
Reader::readComment()
{
Location commentBegin = current_ - 1;
Char c = getNextChar();
bool successful = false;
if ( c == '*' )
successful = readCStyleComment();
else if ( c == '/' )
successful = readCppStyleComment();
if ( !successful )
return false;
if ( collectComments_ )
{
CommentPlacement placement = commentBefore;
if ( lastValueEnd_ && !containsNewLine( lastValueEnd_, commentBegin ) )
{
if ( c != '*' || !containsNewLine( commentBegin, current_ ) )
placement = commentAfterOnSameLine;
}
addComment( commentBegin, current_, placement );
}
return true;
}
void
Reader::addComment( Location begin,
Location end,
CommentPlacement placement )
{
assert( collectComments_ );
if ( placement == commentAfterOnSameLine )
{
assert( lastValue_ != 0 );
lastValue_->setComment( std::string( begin, end ), placement );
}
else
{
if ( !commentsBefore_.empty() )
commentsBefore_ += "\n";
commentsBefore_ += std::string( begin, end );
}
}
bool
Reader::readCStyleComment()
{
while ( current_ != end_ )
{
Char c = getNextChar();
if ( c == '*' && *current_ == '/' )
break;
}
return getNextChar() == '/';
}
bool
Reader::readCppStyleComment()
{
while ( current_ != end_ )
{
Char c = getNextChar();
if ( c == '\r' || c == '\n' )
break;
}
return true;
}
void
Reader::readNumber()
{
while ( current_ != end_ )
{
if ( !(*current_ >= '0' && *current_ <= '9') &&
!in( *current_, '.', 'e', 'E', '+', '-' ) )
break;
++current_;
}
}
bool
Reader::readString()
{
Char c = 0;
while ( current_ != end_ )
{
c = getNextChar();
if ( c == '\\' )
getNextChar();
else if ( c == '"' )
break;
}
return c == '"';
}
bool
Reader::readObject( Token &/*tokenStart*/ )
{
Token tokenName;
std::string name;
currentValue() = Value( objectValue );
while ( readToken( tokenName ) )
{
bool initialTokenOk = true;
while ( tokenName.type_ == tokenComment && initialTokenOk )
initialTokenOk = readToken( tokenName );
if ( !initialTokenOk )
break;
if ( tokenName.type_ == tokenObjectEnd && name.empty() ) // empty object
return true;
if ( tokenName.type_ != tokenString )
break;
name = "";
if ( !decodeString( tokenName, name ) )
return recoverFromError( tokenObjectEnd );
Token colon;
if ( !readToken( colon ) || colon.type_ != tokenMemberSeparator )
{
return addErrorAndRecover( "Missing ':' after object member name",
colon,
tokenObjectEnd );
}
Value &value = currentValue()[ name ];
nodes_.push( &value );
bool ok = readValue();
nodes_.pop();
if ( !ok ) // error already set
return recoverFromError( tokenObjectEnd );
Token comma;
if ( !readToken( comma )
|| ( comma.type_ != tokenObjectEnd &&
comma.type_ != tokenArraySeparator &&
comma.type_ != tokenComment ) )
{
return addErrorAndRecover( "Missing ',' or '}' in object declaration",
comma,
tokenObjectEnd );
}
bool finalizeTokenOk = true;
while ( comma.type_ == tokenComment &&
finalizeTokenOk )
finalizeTokenOk = readToken( comma );
if ( comma.type_ == tokenObjectEnd )
return true;
}
return addErrorAndRecover( "Missing '}' or object member name",
tokenName,
tokenObjectEnd );
}
bool
Reader::readArray( Token &/*tokenStart*/ )
{
currentValue() = Value( arrayValue );
skipSpaces();
if ( *current_ == ']' ) // empty array
{
Token endArray;
readToken( endArray );
return true;
}
int index = 0;
for (;;)
{
Value &value = currentValue()[ index++ ];
nodes_.push( &value );
bool ok = readValue();
nodes_.pop();
if ( !ok ) // error already set
return recoverFromError( tokenArrayEnd );
Token token;
// Accept Comment after last item in the array.
ok = readToken( token );
while ( token.type_ == tokenComment && ok )
{
ok = readToken( token );
}
bool badTokenType = ( token.type_ != tokenArraySeparator &&
token.type_ != tokenArrayEnd );
if ( !ok || badTokenType )
{
return addErrorAndRecover( "Missing ',' or ']' in array declaration",
token,
tokenArrayEnd );
}
if ( token.type_ == tokenArrayEnd )
break;
}
return true;
}
bool
Reader::decodeNumber( Token &token )
{
bool isDouble = false;
for ( Location inspect = token.start_; inspect != token.end_; ++inspect )
{
isDouble = isDouble
|| in( *inspect, '.', 'e', 'E', '+' )
|| ( *inspect == '-' && inspect != token.start_ );
}
if ( isDouble )
return decodeDouble( token );
// Attempts to parse the number as an integer. If the number is
// larger than the maximum supported value of an integer then
// we decode the number as a double.
Location current = token.start_;
bool isNegative = *current == '-';
if ( isNegative )
++current;
Value::LargestUInt maxIntegerValue = isNegative ? Value::LargestUInt(-Value::minLargestInt)
: Value::maxLargestUInt;
Value::LargestUInt threshold = maxIntegerValue / 10;
Value::UInt lastDigitThreshold = Value::UInt( maxIntegerValue % 10 );
assert( lastDigitThreshold >=0 && lastDigitThreshold <= 9 );
Value::LargestUInt value = 0;
while ( current < token.end_ )
{
Char c = *current++;
if ( c < '0' || c > '9' )
return addError( "'" + std::string( token.start_, token.end_ ) + "' is not a number.", token );
Value::UInt digit(c - '0');
if ( value >= threshold )
{
// If the current digit is not the last one, or if it is
// greater than the last digit of the maximum integer value,
// the parse the number as a double.
if ( current != token.end_ || digit > lastDigitThreshold )
{
return decodeDouble( token );
}
}
value = value * 10 + digit;
}
if ( isNegative )
currentValue() = -Value::LargestInt( value );
else if ( value <= Value::LargestUInt(Value::maxInt) )
currentValue() = Value::LargestInt( value );
else
currentValue() = value;
return true;
}
bool
Reader::decodeDouble( Token &token )
{
double value = 0;
const int bufferSize = 32;
int count;
int length = int(token.end_ - token.start_);
if ( length <= bufferSize )
{
Char buffer[bufferSize+1];
memcpy( buffer, token.start_, length );
buffer[length] = 0;
count = sscanf( buffer, "%lf", &value );
}
else
{
std::string buffer( token.start_, token.end_ );
count = sscanf( buffer.c_str(), "%lf", &value );
}
if ( count != 1 )
return addError( "'" + std::string( token.start_, token.end_ ) + "' is not a number.", token );
currentValue() = value;
return true;
}
bool
Reader::decodeString( Token &token )
{
std::string decoded;
if ( !decodeString( token, decoded ) )
return false;
currentValue() = decoded;
return true;
}
bool
Reader::decodeString( Token &token, std::string &decoded )
{
decoded.reserve( token.end_ - token.start_ - 2 );
Location current = token.start_ + 1; // skip '"'
Location end = token.end_ - 1; // do not include '"'
while ( current != end )
{
Char c = *current++;
if ( c == '"' )
break;
else if ( c == '\\' )
{
if ( current == end )
return addError( "Empty escape sequence in string", token, current );
Char escape = *current++;
switch ( escape )
{
case '"': decoded += '"'; break;
case '/': decoded += '/'; break;
case '\\': decoded += '\\'; break;
case 'b': decoded += '\b'; break;
case 'f': decoded += '\f'; break;
case 'n': decoded += '\n'; break;
case 'r': decoded += '\r'; break;
case 't': decoded += '\t'; break;
case 'u':
{
unsigned int unicode;
if ( !decodeUnicodeCodePoint( token, current, end, unicode ) )
return false;
decoded += codePointToUTF8(unicode);
}
break;
default:
return addError( "Bad escape sequence in string", token, current );
}
}
else
{
decoded += c;
}
}
return true;
}
bool
Reader::decodeUnicodeCodePoint( Token &token,
Location &current,
Location end,
unsigned int &unicode )
{
if ( !decodeUnicodeEscapeSequence( token, current, end, unicode ) )
return false;
if (unicode >= 0xD800 && unicode <= 0xDBFF)
{
// surrogate pairs
if (end - current < 6)
return addError( "additional six characters expected to parse unicode surrogate pair.", token, current );
unsigned int surrogatePair;
if (*(current++) == '\\' && *(current++)== 'u')
{
if (decodeUnicodeEscapeSequence( token, current, end, surrogatePair ))
{
unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF);
}
else
return false;
}
else
return addError( "expecting another \\u token to begin the second half of a unicode surrogate pair", token, current );
}
return true;
}
bool
Reader::decodeUnicodeEscapeSequence( Token &token,
Location &current,
Location end,
unsigned int &unicode )
{
if ( end - current < 4 )
return addError( "Bad unicode escape sequence in string: four digits expected.", token, current );
unicode = 0;
for ( int index =0; index < 4; ++index )
{
Char c = *current++;
unicode *= 16;
if ( c >= '0' && c <= '9' )
unicode += c - '0';
else if ( c >= 'a' && c <= 'f' )
unicode += c - 'a' + 10;
else if ( c >= 'A' && c <= 'F' )
unicode += c - 'A' + 10;
else
return addError( "Bad unicode escape sequence in string: hexadecimal digit expected.", token, current );
}
return true;
}
bool
Reader::addError( const std::string &message,
Token &token,
Location extra )
{
ErrorInfo info;
info.token_ = token;
info.message_ = message;
info.extra_ = extra;
errors_.push_back( info );
return false;
}
bool
Reader::recoverFromError( TokenType skipUntilToken )
{
int errorCount = int(errors_.size());
Token skip;
for (;;)
{
if ( !readToken(skip) )
errors_.resize( errorCount ); // discard errors caused by recovery
if ( skip.type_ == skipUntilToken || skip.type_ == tokenEndOfStream )
break;
}
errors_.resize( errorCount );
return false;
}
bool
Reader::addErrorAndRecover( const std::string &message,
Token &token,
TokenType skipUntilToken )
{
addError( message, token );
return recoverFromError( skipUntilToken );
}
Value &
Reader::currentValue()
{
return *(nodes_.top());
}
Reader::Char
Reader::getNextChar()
{
if ( current_ == end_ )
return 0;
return *current_++;
}
void
Reader::getLocationLineAndColumn( Location location,
int &line,
int &column ) const
{
Location current = begin_;
Location lastLineStart = current;
line = 0;
while ( current < location && current != end_ )
{
Char c = *current++;
if ( c == '\r' )
{
if ( *current == '\n' )
++current;
lastLineStart = current;
++line;
}
else if ( c == '\n' )
{
lastLineStart = current;
++line;
}
}
// column & line start at 1
column = int(location - lastLineStart) + 1;
++line;
}
std::string
Reader::getLocationLineAndColumn( Location location ) const
{
int line, column;
getLocationLineAndColumn( location, line, column );
char buffer[18+16+16+1];
sprintf( buffer, "Line %d, Column %d", line, column );
return buffer;
}
// Deprecated. Preserved for backward compatibility
std::string
Reader::getFormatedErrorMessages() const
{
return getFormattedErrorMessages();
}
std::string
Reader::getFormattedErrorMessages() const
{
std::string formattedMessage;
for ( Errors::const_iterator itError = errors_.begin();
itError != errors_.end();
++itError )
{
const ErrorInfo &error = *itError;
formattedMessage += "* " + getLocationLineAndColumn( error.token_.start_ ) + "\n";
formattedMessage += " " + error.message_ + "\n";
if ( error.extra_ )
formattedMessage += "See " + getLocationLineAndColumn( error.extra_ ) + " for detail.\n";
}
return formattedMessage;
}
std::istream& operator>>( std::istream &sin, Value &root )
{
Json::Reader reader;
bool ok = reader.parse(sin, root, true);
//JSON_ASSERT( ok );
if (!ok) throw std::runtime_error(reader.getFormattedErrorMessages());
return sin;
}
} // namespace Json

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@@ -1,93 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#ifndef LIB_JSONCPP_JSON_TOOL_H_INCLUDED
# define LIB_JSONCPP_JSON_TOOL_H_INCLUDED
/* This header provides common string manipulation support, such as UTF-8,
* portable conversion from/to string...
*
* It is an internal header that must not be exposed.
*/
namespace Json {
/// Converts a unicode code-point to UTF-8.
static inline std::string
codePointToUTF8(unsigned int cp)
{
std::string result;
// based on description from http://en.wikipedia.org/wiki/UTF-8
if (cp <= 0x7f)
{
result.resize(1);
result[0] = static_cast<char>(cp);
}
else if (cp <= 0x7FF)
{
result.resize(2);
result[1] = static_cast<char>(0x80 | (0x3f & cp));
result[0] = static_cast<char>(0xC0 | (0x1f & (cp >> 6)));
}
else if (cp <= 0xFFFF)
{
result.resize(3);
result[2] = static_cast<char>(0x80 | (0x3f & cp));
result[1] = 0x80 | static_cast<char>((0x3f & (cp >> 6)));
result[0] = 0xE0 | static_cast<char>((0xf & (cp >> 12)));
}
else if (cp <= 0x10FFFF)
{
result.resize(4);
result[3] = static_cast<char>(0x80 | (0x3f & cp));
result[2] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 12)));
result[0] = static_cast<char>(0xF0 | (0x7 & (cp >> 18)));
}
return result;
}
/// Returns true if ch is a control character (in range [0,32[).
static inline bool
isControlCharacter(char ch)
{
return ch > 0 && ch <= 0x1F;
}
enum {
/// Constant that specify the size of the buffer that must be passed to uintToString.
uintToStringBufferSize = 3*sizeof(LargestUInt)+1
};
// Defines a char buffer for use with uintToString().
typedef char UIntToStringBuffer[uintToStringBufferSize];
/** Converts an unsigned integer to string.
* @param value Unsigned interger to convert to string
* @param current Input/Output string buffer.
* Must have at least uintToStringBufferSize chars free.
*/
static inline void
uintToString( LargestUInt value,
char *&current )
{
*--current = 0;
do
{
*--current = char(value % 10) + '0';
value /= 10;
}
while ( value != 0 );
}
} // namespace Json {
#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED

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@@ -1,299 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
// included by json_value.cpp
namespace Json {
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueIteratorBase
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueIteratorBase::ValueIteratorBase()
#ifndef JSON_VALUE_USE_INTERNAL_MAP
: current_()
, isNull_( true )
{
}
#else
: isArray_( true )
, isNull_( true )
{
iterator_.array_ = ValueInternalArray::IteratorState();
}
#endif
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueIteratorBase::ValueIteratorBase( const Value::ObjectValues::iterator &current )
: current_( current )
, isNull_( false )
{
}
#else
ValueIteratorBase::ValueIteratorBase( const ValueInternalArray::IteratorState &state )
: isArray_( true )
{
iterator_.array_ = state;
}
ValueIteratorBase::ValueIteratorBase( const ValueInternalMap::IteratorState &state )
: isArray_( false )
{
iterator_.map_ = state;
}
#endif
Value &
ValueIteratorBase::deref() const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
return current_->second;
#else
if ( isArray_ )
return ValueInternalArray::dereference( iterator_.array_ );
return ValueInternalMap::value( iterator_.map_ );
#endif
}
void
ValueIteratorBase::increment()
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
++current_;
#else
if ( isArray_ )
ValueInternalArray::increment( iterator_.array_ );
ValueInternalMap::increment( iterator_.map_ );
#endif
}
void
ValueIteratorBase::decrement()
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
--current_;
#else
if ( isArray_ )
ValueInternalArray::decrement( iterator_.array_ );
ValueInternalMap::decrement( iterator_.map_ );
#endif
}
ValueIteratorBase::difference_type
ValueIteratorBase::computeDistance( const SelfType &other ) const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
# ifdef JSON_USE_CPPTL_SMALLMAP
return current_ - other.current_;
# else
// Iterator for null value are initialized using the default
// constructor, which initialize current_ to the default
// std::map::iterator. As begin() and end() are two instance
// of the default std::map::iterator, they can not be compared.
// To allow this, we handle this comparison specifically.
if ( isNull_ && other.isNull_ )
{
return 0;
}
// Usage of std::distance is not portable (does not compile with Sun Studio 12 RogueWave STL,
// which is the one used by default).
// Using a portable hand-made version for non random iterator instead:
// return difference_type( std::distance( current_, other.current_ ) );
difference_type myDistance = 0;
for ( Value::ObjectValues::iterator it = current_; it != other.current_; ++it )
{
++myDistance;
}
return myDistance;
# endif
#else
if ( isArray_ )
return ValueInternalArray::distance( iterator_.array_, other.iterator_.array_ );
return ValueInternalMap::distance( iterator_.map_, other.iterator_.map_ );
#endif
}
bool
ValueIteratorBase::isEqual( const SelfType &other ) const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
if ( isNull_ )
{
return other.isNull_;
}
return current_ == other.current_;
#else
if ( isArray_ )
return ValueInternalArray::equals( iterator_.array_, other.iterator_.array_ );
return ValueInternalMap::equals( iterator_.map_, other.iterator_.map_ );
#endif
}
void
ValueIteratorBase::copy( const SelfType &other )
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
current_ = other.current_;
#else
if ( isArray_ )
iterator_.array_ = other.iterator_.array_;
iterator_.map_ = other.iterator_.map_;
#endif
}
Value
ValueIteratorBase::key() const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const Value::CZString czstring = (*current_).first;
if ( czstring.c_str() )
{
if ( czstring.isStaticString() )
return Value( StaticString( czstring.c_str() ) );
return Value( czstring.c_str() );
}
return Value( czstring.index() );
#else
if ( isArray_ )
return Value( ValueInternalArray::indexOf( iterator_.array_ ) );
bool isStatic;
const char *memberName = ValueInternalMap::key( iterator_.map_, isStatic );
if ( isStatic )
return Value( StaticString( memberName ) );
return Value( memberName );
#endif
}
UInt
ValueIteratorBase::index() const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const Value::CZString czstring = (*current_).first;
if ( !czstring.c_str() )
return czstring.index();
return Value::UInt( -1 );
#else
if ( isArray_ )
return Value::UInt( ValueInternalArray::indexOf( iterator_.array_ ) );
return Value::UInt( -1 );
#endif
}
const char *
ValueIteratorBase::memberName() const
{
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const char *name = (*current_).first.c_str();
return name ? name : "";
#else
if ( !isArray_ )
return ValueInternalMap::key( iterator_.map_ );
return "";
#endif
}
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueConstIterator
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueConstIterator::ValueConstIterator()
{
}
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueConstIterator::ValueConstIterator( const Value::ObjectValues::iterator &current )
: ValueIteratorBase( current )
{
}
#else
ValueConstIterator::ValueConstIterator( const ValueInternalArray::IteratorState &state )
: ValueIteratorBase( state )
{
}
ValueConstIterator::ValueConstIterator( const ValueInternalMap::IteratorState &state )
: ValueIteratorBase( state )
{
}
#endif
ValueConstIterator &
ValueConstIterator::operator =( const ValueIteratorBase &other )
{
copy( other );
return *this;
}
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueIterator
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueIterator::ValueIterator()
{
}
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueIterator::ValueIterator( const Value::ObjectValues::iterator &current )
: ValueIteratorBase( current )
{
}
#else
ValueIterator::ValueIterator( const ValueInternalArray::IteratorState &state )
: ValueIteratorBase( state )
{
}
ValueIterator::ValueIterator( const ValueInternalMap::IteratorState &state )
: ValueIteratorBase( state )
{
}
#endif
ValueIterator::ValueIterator( const ValueConstIterator &other )
: ValueIteratorBase( other )
{
}
ValueIterator::ValueIterator( const ValueIterator &other )
: ValueIteratorBase( other )
{
}
ValueIterator &
ValueIterator::operator =( const SelfType &other )
{
copy( other );
return *this;
}
} // namespace Json

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@@ -1,838 +0,0 @@
// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
#if !defined(JSON_IS_AMALGAMATION)
# include <json/writer.h>
# include "json_tool.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
#include <utility>
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#if _MSC_VER >= 1400 // VC++ 8.0
#pragma warning( disable : 4996 ) // disable warning about strdup being deprecated.
#endif
namespace Json {
static bool containsControlCharacter( const char* str )
{
while ( *str )
{
if ( isControlCharacter( *(str++) ) )
return true;
}
return false;
}
std::string valueToString( LargestInt value )
{
UIntToStringBuffer buffer;
char *current = buffer + sizeof(buffer);
bool isNegative = value < 0;
if ( isNegative )
value = -value;
uintToString( LargestUInt(value), current );
if ( isNegative )
*--current = '-';
assert( current >= buffer );
return current;
}
std::string valueToString( LargestUInt value )
{
UIntToStringBuffer buffer;
char *current = buffer + sizeof(buffer);
uintToString( value, current );
assert( current >= buffer );
return current;
}
#if defined(JSON_HAS_INT64)
std::string valueToString( Int value )
{
return valueToString( LargestInt(value) );
}
std::string valueToString( UInt value )
{
return valueToString( LargestUInt(value) );
}
#endif // # if defined(JSON_HAS_INT64)
std::string valueToString( double value )
{
char buffer[32];
#if defined(_MSC_VER) && defined(__STDC_SECURE_LIB__) // Use secure version with visual studio 2005 to avoid warning.
sprintf_s(buffer, sizeof(buffer), "%#.16g", value);
#else
sprintf(buffer, "%#.16g", value);
#endif
char* ch = buffer + strlen(buffer) - 1;
if (*ch != '0') return buffer; // nothing to truncate, so save time
while(ch > buffer && *ch == '0'){
--ch;
}
char* last_nonzero = ch;
while(ch >= buffer){
switch(*ch){
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
--ch;
continue;
case '.':
// Truncate zeroes to save bytes in output, but keep one.
*(last_nonzero+2) = '\0';
return buffer;
default:
return buffer;
}
}
return buffer;
}
std::string valueToString( bool value )
{
return value ? "true" : "false";
}
std::string valueToQuotedString( const char *value )
{
// Not sure how to handle unicode...
if (strpbrk(value, "\"\\\b\f\n\r\t") == NULL && !containsControlCharacter( value ))
return std::string("\"") + value + "\"";
// We have to walk value and escape any special characters.
// Appending to std::string is not efficient, but this should be rare.
// (Note: forward slashes are *not* rare, but I am not escaping them.)
std::string::size_type maxsize = strlen(value)*2 + 3; // allescaped+quotes+NULL
std::string result;
result.reserve(maxsize); // to avoid lots of mallocs
result += "\"";
for (const char* c=value; *c != 0; ++c)
{
switch(*c)
{
case '\"':
result += "\\\"";
break;
case '\\':
result += "\\\\";
break;
case '\b':
result += "\\b";
break;
case '\f':
result += "\\f";
break;
case '\n':
result += "\\n";
break;
case '\r':
result += "\\r";
break;
case '\t':
result += "\\t";
break;
//case '/':
// Even though \/ is considered a legal escape in JSON, a bare
// slash is also legal, so I see no reason to escape it.
// (I hope I am not misunderstanding something.
// blep notes: actually escaping \/ may be useful in javascript to avoid </
// sequence.
// Should add a flag to allow this compatibility mode and prevent this
// sequence from occurring.
default:
if ( isControlCharacter( *c ) )
{
std::ostringstream oss;
oss << "\\u" << std::hex << std::uppercase << std::setfill('0') << std::setw(4) << static_cast<int>(*c);
result += oss.str();
}
else
{
result += *c;
}
break;
}
}
result += "\"";
return result;
}
// Class Writer
// //////////////////////////////////////////////////////////////////
Writer::~Writer()
{
}
// Class FastWriter
// //////////////////////////////////////////////////////////////////
FastWriter::FastWriter()
: yamlCompatiblityEnabled_( false )
{
}
void
FastWriter::enableYAMLCompatibility()
{
yamlCompatiblityEnabled_ = true;
}
std::string
FastWriter::write( const Value &root )
{
document_ = "";
writeValue( root );
document_ += "\n";
return document_;
}
void
FastWriter::writeValue( const Value &value )
{
switch ( value.type() )
{
case nullValue:
document_ += "null";
break;
case intValue:
document_ += valueToString( value.asLargestInt() );
break;
case uintValue:
document_ += valueToString( value.asLargestUInt() );
break;
case realValue:
document_ += valueToString( value.asDouble() );
break;
case stringValue:
document_ += valueToQuotedString( value.asCString() );
break;
case booleanValue:
document_ += valueToString( value.asBool() );
break;
case arrayValue:
{
document_ += "[";
int size = value.size();
for ( int index =0; index < size; ++index )
{
if ( index > 0 )
document_ += ",";
writeValue( value[index] );
}
document_ += "]";
}
break;
case objectValue:
{
Value::Members members( value.getMemberNames() );
document_ += "{";
for ( Value::Members::iterator it = members.begin();
it != members.end();
++it )
{
const std::string &name = *it;
if ( it != members.begin() )
document_ += ",";
document_ += valueToQuotedString( name.c_str() );
document_ += yamlCompatiblityEnabled_ ? ": "
: ":";
writeValue( value[name] );
}
document_ += "}";
}
break;
}
}
// Class StyledWriter
// //////////////////////////////////////////////////////////////////
StyledWriter::StyledWriter()
: rightMargin_( 74 )
, indentSize_( 3 )
{
}
std::string
StyledWriter::write( const Value &root )
{
document_ = "";
addChildValues_ = false;
indentString_ = "";
writeCommentBeforeValue( root );
writeValue( root );
writeCommentAfterValueOnSameLine( root );
document_ += "\n";
return document_;
}
void
StyledWriter::writeValue( const Value &value )
{
switch ( value.type() )
{
case nullValue:
pushValue( "null" );
break;
case intValue:
pushValue( valueToString( value.asLargestInt() ) );
break;
case uintValue:
pushValue( valueToString( value.asLargestUInt() ) );
break;
case realValue:
pushValue( valueToString( value.asDouble() ) );
break;
case stringValue:
pushValue( valueToQuotedString( value.asCString() ) );
break;
case booleanValue:
pushValue( valueToString( value.asBool() ) );
break;
case arrayValue:
writeArrayValue( value);
break;
case objectValue:
{
Value::Members members( value.getMemberNames() );
if ( members.empty() )
pushValue( "{}" );
else
{
writeWithIndent( "{" );
indent();
Value::Members::iterator it = members.begin();
for (;;)
{
const std::string &name = *it;
const Value &childValue = value[name];
writeCommentBeforeValue( childValue );
writeWithIndent( valueToQuotedString( name.c_str() ) );
document_ += " : ";
writeValue( childValue );
if ( ++it == members.end() )
{
writeCommentAfterValueOnSameLine( childValue );
break;
}
document_ += ",";
writeCommentAfterValueOnSameLine( childValue );
}
unindent();
writeWithIndent( "}" );
}
}
break;
}
}
void
StyledWriter::writeArrayValue( const Value &value )
{
unsigned size = value.size();
if ( size == 0 )
pushValue( "[]" );
else
{
bool isArrayMultiLine = isMultineArray( value );
if ( isArrayMultiLine )
{
writeWithIndent( "[" );
indent();
bool hasChildValue = !childValues_.empty();
unsigned index =0;
for (;;)
{
const Value &childValue = value[index];
writeCommentBeforeValue( childValue );
if ( hasChildValue )
writeWithIndent( childValues_[index] );
else
{
writeIndent();
writeValue( childValue );
}
if ( ++index == size )
{
writeCommentAfterValueOnSameLine( childValue );
break;
}
document_ += ",";
writeCommentAfterValueOnSameLine( childValue );
}
unindent();
writeWithIndent( "]" );
}
else // output on a single line
{
assert( childValues_.size() == size );
document_ += "[ ";
for ( unsigned index =0; index < size; ++index )
{
if ( index > 0 )
document_ += ", ";
document_ += childValues_[index];
}
document_ += " ]";
}
}
}
bool
StyledWriter::isMultineArray( const Value &value )
{
int size = value.size();
bool isMultiLine = size*3 >= rightMargin_ ;
childValues_.clear();
for ( int index =0; index < size && !isMultiLine; ++index )
{
const Value &childValue = value[index];
isMultiLine = isMultiLine ||
( (childValue.isArray() || childValue.isObject()) &&
childValue.size() > 0 );
}
if ( !isMultiLine ) // check if line length > max line length
{
childValues_.reserve( size );
addChildValues_ = true;
int lineLength = 4 + (size-1)*2; // '[ ' + ', '*n + ' ]'
for ( int index =0; index < size && !isMultiLine; ++index )
{
writeValue( value[index] );
lineLength += int( childValues_[index].length() );
isMultiLine = isMultiLine && hasCommentForValue( value[index] );
}
addChildValues_ = false;
isMultiLine = isMultiLine || lineLength >= rightMargin_;
}
return isMultiLine;
}
void
StyledWriter::pushValue( const std::string &value )
{
if ( addChildValues_ )
childValues_.push_back( value );
else
document_ += value;
}
void
StyledWriter::writeIndent()
{
if ( !document_.empty() )
{
char last = document_[document_.length()-1];
if ( last == ' ' ) // already indented
return;
if ( last != '\n' ) // Comments may add new-line
document_ += '\n';
}
document_ += indentString_;
}
void
StyledWriter::writeWithIndent( const std::string &value )
{
writeIndent();
document_ += value;
}
void
StyledWriter::indent()
{
indentString_ += std::string( indentSize_, ' ' );
}
void
StyledWriter::unindent()
{
assert( int(indentString_.size()) >= indentSize_ );
indentString_.resize( indentString_.size() - indentSize_ );
}
void
StyledWriter::writeCommentBeforeValue( const Value &root )
{
if ( !root.hasComment( commentBefore ) )
return;
document_ += normalizeEOL( root.getComment( commentBefore ) );
document_ += "\n";
}
void
StyledWriter::writeCommentAfterValueOnSameLine( const Value &root )
{
if ( root.hasComment( commentAfterOnSameLine ) )
document_ += " " + normalizeEOL( root.getComment( commentAfterOnSameLine ) );
if ( root.hasComment( commentAfter ) )
{
document_ += "\n";
document_ += normalizeEOL( root.getComment( commentAfter ) );
document_ += "\n";
}
}
bool
StyledWriter::hasCommentForValue( const Value &value )
{
return value.hasComment( commentBefore )
|| value.hasComment( commentAfterOnSameLine )
|| value.hasComment( commentAfter );
}
std::string
StyledWriter::normalizeEOL( const std::string &text )
{
std::string normalized;
normalized.reserve( text.length() );
const char *begin = text.c_str();
const char *end = begin + text.length();
const char *current = begin;
while ( current != end )
{
char c = *current++;
if ( c == '\r' ) // mac or dos EOL
{
if ( *current == '\n' ) // convert dos EOL
++current;
normalized += '\n';
}
else // handle unix EOL & other char
normalized += c;
}
return normalized;
}
// Class StyledStreamWriter
// //////////////////////////////////////////////////////////////////
StyledStreamWriter::StyledStreamWriter( std::string indentation )
: document_(NULL)
, rightMargin_( 74 )
, indentation_( indentation )
{
}
void
StyledStreamWriter::write( std::ostream &out, const Value &root )
{
document_ = &out;
addChildValues_ = false;
indentString_ = "";
writeCommentBeforeValue( root );
writeValue( root );
writeCommentAfterValueOnSameLine( root );
*document_ << "\n";
document_ = NULL; // Forget the stream, for safety.
}
void
StyledStreamWriter::writeValue( const Value &value )
{
switch ( value.type() )
{
case nullValue:
pushValue( "null" );
break;
case intValue:
pushValue( valueToString( value.asLargestInt() ) );
break;
case uintValue:
pushValue( valueToString( value.asLargestUInt() ) );
break;
case realValue:
pushValue( valueToString( value.asDouble() ) );
break;
case stringValue:
pushValue( valueToQuotedString( value.asCString() ) );
break;
case booleanValue:
pushValue( valueToString( value.asBool() ) );
break;
case arrayValue:
writeArrayValue( value);
break;
case objectValue:
{
Value::Members members( value.getMemberNames() );
if ( members.empty() )
pushValue( "{}" );
else
{
writeWithIndent( "{" );
indent();
Value::Members::iterator it = members.begin();
for (;;)
{
const std::string &name = *it;
const Value &childValue = value[name];
writeCommentBeforeValue( childValue );
writeWithIndent( valueToQuotedString( name.c_str() ) );
*document_ << " : ";
writeValue( childValue );
if ( ++it == members.end() )
{
writeCommentAfterValueOnSameLine( childValue );
break;
}
*document_ << ",";
writeCommentAfterValueOnSameLine( childValue );
}
unindent();
writeWithIndent( "}" );
}
}
break;
}
}
void
StyledStreamWriter::writeArrayValue( const Value &value )
{
unsigned size = value.size();
if ( size == 0 )
pushValue( "[]" );
else
{
bool isArrayMultiLine = isMultineArray( value );
if ( isArrayMultiLine )
{
writeWithIndent( "[" );
indent();
bool hasChildValue = !childValues_.empty();
unsigned index =0;
for (;;)
{
const Value &childValue = value[index];
writeCommentBeforeValue( childValue );
if ( hasChildValue )
writeWithIndent( childValues_[index] );
else
{
writeIndent();
writeValue( childValue );
}
if ( ++index == size )
{
writeCommentAfterValueOnSameLine( childValue );
break;
}
*document_ << ",";
writeCommentAfterValueOnSameLine( childValue );
}
unindent();
writeWithIndent( "]" );
}
else // output on a single line
{
assert( childValues_.size() == size );
*document_ << "[ ";
for ( unsigned index =0; index < size; ++index )
{
if ( index > 0 )
*document_ << ", ";
*document_ << childValues_[index];
}
*document_ << " ]";
}
}
}
bool
StyledStreamWriter::isMultineArray( const Value &value )
{
int size = value.size();
bool isMultiLine = size*3 >= rightMargin_ ;
childValues_.clear();
for ( int index =0; index < size && !isMultiLine; ++index )
{
const Value &childValue = value[index];
isMultiLine = isMultiLine ||
( (childValue.isArray() || childValue.isObject()) &&
childValue.size() > 0 );
}
if ( !isMultiLine ) // check if line length > max line length
{
childValues_.reserve( size );
addChildValues_ = true;
int lineLength = 4 + (size-1)*2; // '[ ' + ', '*n + ' ]'
for ( int index =0; index < size && !isMultiLine; ++index )
{
writeValue( value[index] );
lineLength += int( childValues_[index].length() );
isMultiLine = isMultiLine && hasCommentForValue( value[index] );
}
addChildValues_ = false;
isMultiLine = isMultiLine || lineLength >= rightMargin_;
}
return isMultiLine;
}
void
StyledStreamWriter::pushValue( const std::string &value )
{
if ( addChildValues_ )
childValues_.push_back( value );
else
*document_ << value;
}
void
StyledStreamWriter::writeIndent()
{
/*
Some comments in this method would have been nice. ;-)
if ( !document_.empty() )
{
char last = document_[document_.length()-1];
if ( last == ' ' ) // already indented
return;
if ( last != '\n' ) // Comments may add new-line
*document_ << '\n';
}
*/
*document_ << '\n' << indentString_;
}
void
StyledStreamWriter::writeWithIndent( const std::string &value )
{
writeIndent();
*document_ << value;
}
void
StyledStreamWriter::indent()
{
indentString_ += indentation_;
}
void
StyledStreamWriter::unindent()
{
assert( indentString_.size() >= indentation_.size() );
indentString_.resize( indentString_.size() - indentation_.size() );
}
void
StyledStreamWriter::writeCommentBeforeValue( const Value &root )
{
if ( !root.hasComment( commentBefore ) )
return;
*document_ << normalizeEOL( root.getComment( commentBefore ) );
*document_ << "\n";
}
void
StyledStreamWriter::writeCommentAfterValueOnSameLine( const Value &root )
{
if ( root.hasComment( commentAfterOnSameLine ) )
*document_ << " " + normalizeEOL( root.getComment( commentAfterOnSameLine ) );
if ( root.hasComment( commentAfter ) )
{
*document_ << "\n";
*document_ << normalizeEOL( root.getComment( commentAfter ) );
*document_ << "\n";
}
}
bool
StyledStreamWriter::hasCommentForValue( const Value &value )
{
return value.hasComment( commentBefore )
|| value.hasComment( commentAfterOnSameLine )
|| value.hasComment( commentAfter );
}
std::string
StyledStreamWriter::normalizeEOL( const std::string &text )
{
std::string normalized;
normalized.reserve( text.length() );
const char *begin = text.c_str();
const char *end = begin + text.length();
const char *current = begin;
while ( current != end )
{
char c = *current++;
if ( c == '\r' ) // mac or dos EOL
{
if ( *current == '\n' ) // convert dos EOL
++current;
normalized += '\n';
}
else // handle unix EOL & other char
normalized += c;
}
return normalized;
}
std::ostream& operator<<( std::ostream &sout, const Value &root )
{
Json::StyledStreamWriter writer;
writer.write(sout, root);
return sout;
}
} // namespace Json