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fix: minor code refactor

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This commit is contained in:
Tobias Reisinger 2020-08-13 11:26:06 +02:00
parent 505faa6df2
commit f167f9caec
22 changed files with 83 additions and 30 deletions

384
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/**
* Copyright (C) 2012-2015 Yecheng Fu <cofyc.jackson at gmail dot com>
* All rights reserved.
*
* Use of this source code is governed by a MIT-style license that can be found
* in the LICENSE file.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "argparse.h"
#define OPT_UNSET 1
#define OPT_LONG (1 << 1)
static const char *
prefix_skip(const char *str, const char *prefix)
{
size_t len = strlen(prefix);
return strncmp(str, prefix, len) ? NULL : str + len;
}
static int
prefix_cmp(const char *str, const char *prefix)
{
for (;; str++, prefix++)
if (!*prefix) {
return 0;
} else if (*str != *prefix) {
return (unsigned char)*prefix - (unsigned char)*str;
}
}
static void
argparse_error(struct argparse *self, const struct argparse_option *opt,
const char *reason, int flags)
{
(void)self;
if (flags & OPT_LONG) {
fprintf(stderr, "error: option `--%s` %s\n", opt->long_name, reason);
} else {
fprintf(stderr, "error: option `-%c` %s\n", opt->short_name, reason);
}
exit(1);
}
static int
argparse_getvalue(struct argparse *self, const struct argparse_option *opt,
int flags)
{
const char *s = NULL;
if (!opt->value)
goto skipped;
switch (opt->type) {
case ARGPARSE_OPT_BOOLEAN:
if (flags & OPT_UNSET) {
*(int *)opt->value = *(int *)opt->value - 1;
} else {
*(int *)opt->value = *(int *)opt->value + 1;
}
if (*(int *)opt->value < 0) {
*(int *)opt->value = 0;
}
break;
case ARGPARSE_OPT_BIT:
if (flags & OPT_UNSET) {
*(int *)opt->value &= ~opt->data;
} else {
*(int *)opt->value |= opt->data;
}
break;
case ARGPARSE_OPT_STRING:
if (self->optvalue) {
*(const char **)opt->value = self->optvalue;
self->optvalue = NULL;
} else if (self->argc > 1) {
self->argc--;
*(const char **)opt->value = *++self->argv;
} else {
argparse_error(self, opt, "requires a value", flags);
}
break;
case ARGPARSE_OPT_INTEGER:
errno = 0;
if (self->optvalue) {
*(int *)opt->value = strtol(self->optvalue, (char **)&s, 0);
self->optvalue = NULL;
} else if (self->argc > 1) {
self->argc--;
*(int *)opt->value = strtol(*++self->argv, (char **)&s, 0);
} else {
argparse_error(self, opt, "requires a value", flags);
}
if (errno)
argparse_error(self, opt, strerror(errno), flags);
if (s[0] != '\0')
argparse_error(self, opt, "expects an integer value", flags);
break;
case ARGPARSE_OPT_FLOAT:
errno = 0;
if (self->optvalue) {
*(float *)opt->value = strtof(self->optvalue, (char **)&s);
self->optvalue = NULL;
} else if (self->argc > 1) {
self->argc--;
*(float *)opt->value = strtof(*++self->argv, (char **)&s);
} else {
argparse_error(self, opt, "requires a value", flags);
}
if (errno)
argparse_error(self, opt, strerror(errno), flags);
if (s[0] != '\0')
argparse_error(self, opt, "expects a numerical value", flags);
break;
default:
assert(0);
}
skipped:
if (opt->callback) {
return opt->callback(self, opt);
}
return 0;
}
static void
argparse_options_check(const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
switch (options->type) {
case ARGPARSE_OPT_END:
case ARGPARSE_OPT_BOOLEAN:
case ARGPARSE_OPT_BIT:
case ARGPARSE_OPT_INTEGER:
case ARGPARSE_OPT_FLOAT:
case ARGPARSE_OPT_STRING:
case ARGPARSE_OPT_GROUP:
continue;
default:
fprintf(stderr, "wrong option type: %d", options->type);
break;
}
}
}
static int
argparse_short_opt(struct argparse *self, const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
if (options->short_name == *self->optvalue) {
self->optvalue = self->optvalue[1] ? self->optvalue + 1 : NULL;
return argparse_getvalue(self, options, 0);
}
}
return -2;
}
static int
argparse_long_opt(struct argparse *self, const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
const char *rest;
int opt_flags = 0;
if (!options->long_name)
continue;
rest = prefix_skip(self->argv[0] + 2, options->long_name);
if (!rest) {
// negation disabled?
if (options->flags & OPT_NONEG) {
continue;
}
// only OPT_BOOLEAN/OPT_BIT supports negation
if (options->type != ARGPARSE_OPT_BOOLEAN && options->type !=
ARGPARSE_OPT_BIT) {
continue;
}
if (prefix_cmp(self->argv[0] + 2, "no-")) {
continue;
}
rest = prefix_skip(self->argv[0] + 2 + 3, options->long_name);
if (!rest)
continue;
opt_flags |= OPT_UNSET;
}
if (*rest) {
if (*rest != '=')
continue;
self->optvalue = rest + 1;
}
return argparse_getvalue(self, options, opt_flags | OPT_LONG);
}
return -2;
}
int
argparse_init(struct argparse *self, struct argparse_option *options,
const char *const *usages, int flags)
{
memset(self, 0, sizeof(*self));
self->options = options;
self->usages = usages;
self->flags = flags;
self->description = NULL;
self->epilog = NULL;
return 0;
}
void
argparse_describe(struct argparse *self, const char *description,
const char *epilog)
{
self->description = description;
self->epilog = epilog;
}
int
argparse_parse(struct argparse *self, int argc, const char **argv)
{
self->argc = argc - 1;
self->argv = argv + 1;
self->out = argv;
argparse_options_check(self->options);
for (; self->argc; self->argc--, self->argv++) {
const char *arg = self->argv[0];
if (arg[0] != '-' || !arg[1]) {
if (self->flags & ARGPARSE_STOP_AT_NON_OPTION) {
goto end;
}
// if it's not option or is a single char '-', copy verbatim
self->out[self->cpidx++] = self->argv[0];
continue;
}
// short option
if (arg[1] != '-') {
self->optvalue = arg + 1;
switch (argparse_short_opt(self, self->options)) {
case -1:
break;
case -2:
goto unknown;
}
while (self->optvalue) {
switch (argparse_short_opt(self, self->options)) {
case -1:
break;
case -2:
goto unknown;
}
}
continue;
}
// if '--' presents
if (!arg[2]) {
self->argc--;
self->argv++;
break;
}
// long option
switch (argparse_long_opt(self, self->options)) {
case -1:
break;
case -2:
goto unknown;
}
continue;
unknown:
fprintf(stderr, "error: unknown option `%s`\n", self->argv[0]);
argparse_usage(self);
exit(1);
}
end:
memmove(self->out + self->cpidx, self->argv,
self->argc * sizeof(*self->out));
self->out[self->cpidx + self->argc] = NULL;
return self->cpidx + self->argc;
}
void
argparse_usage(struct argparse *self)
{
if (self->usages) {
fprintf(stdout, "Usage: %s\n", *self->usages++);
while (*self->usages && **self->usages)
fprintf(stdout, " or: %s\n", *self->usages++);
} else {
fprintf(stdout, "Usage:\n");
}
// print description
if (self->description)
fprintf(stdout, "%s\n", self->description);
fputc('\n', stdout);
const struct argparse_option *options;
// figure out best width
size_t usage_opts_width = 0;
size_t len;
options = self->options;
for (; options->type != ARGPARSE_OPT_END; options++) {
len = 0;
if ((options)->short_name) {
len += 2;
}
if ((options)->short_name && (options)->long_name) {
len += 2; // separator ", "
}
if ((options)->long_name) {
len += strlen((options)->long_name) + 2;
}
if (options->type == ARGPARSE_OPT_INTEGER) {
len += strlen("=<int>");
}
if (options->type == ARGPARSE_OPT_FLOAT) {
len += strlen("=<flt>");
} else if (options->type == ARGPARSE_OPT_STRING) {
len += strlen("=<str>");
}
len = (len + 3) - ((len + 3) & 3);
if (usage_opts_width < len) {
usage_opts_width = len;
}
}
usage_opts_width += 4; // 4 spaces prefix
options = self->options;
for (; options->type != ARGPARSE_OPT_END; options++) {
size_t pos = 0;
int pad = 0;
if (options->type == ARGPARSE_OPT_GROUP) {
fputc('\n', stdout);
fprintf(stdout, "%s", options->help);
fputc('\n', stdout);
continue;
}
pos = fprintf(stdout, " ");
if (options->short_name) {
pos += fprintf(stdout, "-%c", options->short_name);
}
if (options->long_name && options->short_name) {
pos += fprintf(stdout, ", ");
}
if (options->long_name) {
pos += fprintf(stdout, "--%s", options->long_name);
}
if (options->type == ARGPARSE_OPT_INTEGER) {
pos += fprintf(stdout, "=<int>");
} else if (options->type == ARGPARSE_OPT_FLOAT) {
pos += fprintf(stdout, "=<flt>");
} else if (options->type == ARGPARSE_OPT_STRING) {
pos += fprintf(stdout, "=<str>");
}
if (pos <= usage_opts_width) {
pad = usage_opts_width - pos;
} else {
fputc('\n', stdout);
pad = usage_opts_width;
}
fprintf(stdout, "%*s%s\n", pad + 2, "", options->help);
}
// print epilog
if (self->epilog)
fprintf(stdout, "%s\n", self->epilog);
}
int
argparse_help_cb(struct argparse *self, const struct argparse_option *option)
{
(void)option;
argparse_usage(self);
exit(0);
}

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/**
* Copyright (C) 2012-2015 Yecheng Fu <cofyc.jackson at gmail dot com>
* All rights reserved.
*
* Use of this source code is governed by a MIT-style license that can be found
* in the LICENSE file.
*/
#ifndef ARGPARSE_H
#define ARGPARSE_H
/* For c++ compatibility */
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
struct argparse;
struct argparse_option;
typedef int argparse_callback (struct argparse *self,
const struct argparse_option *option);
enum argparse_flag {
ARGPARSE_STOP_AT_NON_OPTION = 1,
};
enum argparse_option_type {
/* special */
ARGPARSE_OPT_END,
ARGPARSE_OPT_GROUP,
/* options with no arguments */
ARGPARSE_OPT_BOOLEAN,
ARGPARSE_OPT_BIT,
/* options with arguments (optional or required) */
ARGPARSE_OPT_INTEGER,
ARGPARSE_OPT_FLOAT,
ARGPARSE_OPT_STRING,
};
enum argparse_option_flags {
OPT_NONEG = 1, /* disable negation */
};
/**
* argparse option
*
* `type`:
* holds the type of the option, you must have an ARGPARSE_OPT_END last in your
* array.
*
* `short_name`:
* the character to use as a short option name, '\0' if none.
*
* `long_name`:
* the long option name, without the leading dash, NULL if none.
*
* `value`:
* stores pointer to the value to be filled.
*
* `help`:
* the short help message associated to what the option does.
* Must never be NULL (except for ARGPARSE_OPT_END).
*
* `callback`:
* function is called when corresponding argument is parsed.
*
* `data`:
* associated data. Callbacks can use it like they want.
*
* `flags`:
* option flags.
*/
struct argparse_option {
enum argparse_option_type type;
const char short_name;
const char *long_name;
void *value;
const char *help;
argparse_callback *callback;
intptr_t data;
int flags;
};
/**
* argpparse
*/
struct argparse {
// user supplied
const struct argparse_option *options;
const char *const *usages;
int flags;
const char *description; // a description after usage
const char *epilog; // a description at the end
// internal context
int argc;
const char **argv;
const char **out;
int cpidx;
const char *optvalue; // current option value
};
// built-in callbacks
int argparse_help_cb(struct argparse *self,
const struct argparse_option *option);
// built-in option macros
#define OPT_END() { ARGPARSE_OPT_END, 0, NULL, NULL, 0, NULL, 0, 0 }
#define OPT_BOOLEAN(...) { ARGPARSE_OPT_BOOLEAN, __VA_ARGS__ }
#define OPT_BIT(...) { ARGPARSE_OPT_BIT, __VA_ARGS__ }
#define OPT_INTEGER(...) { ARGPARSE_OPT_INTEGER, __VA_ARGS__ }
#define OPT_FLOAT(...) { ARGPARSE_OPT_FLOAT, __VA_ARGS__ }
#define OPT_STRING(...) { ARGPARSE_OPT_STRING, __VA_ARGS__ }
#define OPT_GROUP(h) { ARGPARSE_OPT_GROUP, 0, NULL, NULL, h, NULL, 0, 0 }
#define OPT_HELP() OPT_BOOLEAN('h', "help", NULL, \
"show this help message and exit", \
argparse_help_cb, 0, OPT_NONEG)
int argparse_init(struct argparse *self, struct argparse_option *options,
const char *const *usages, int flags);
void argparse_describe(struct argparse *self, const char *description,
const char *epilog);
int argparse_parse(struct argparse *self, int argc, const char **argv);
void argparse_usage(struct argparse *self);
#ifdef __cplusplus
}
#endif
#endif

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/*
Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
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 cJSON__h
#define cJSON__h
#ifdef __cplusplus
extern "C"
{
#endif
#if !defined(__WINDOWS__) && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32))
#define __WINDOWS__
#endif
#ifdef __WINDOWS__
/* When compiling for windows, we specify a specific calling convention to avoid issues where we are being called from a project with a different default calling convention. For windows you have 3 define options:
CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever dllexport symbols
CJSON_EXPORT_SYMBOLS - Define this on library build when you want to dllexport symbols (default)
CJSON_IMPORT_SYMBOLS - Define this if you want to dllimport symbol
For *nix builds that support visibility attribute, you can define similar behavior by
setting default visibility to hidden by adding
-fvisibility=hidden (for gcc)
or
-xldscope=hidden (for sun cc)
to CFLAGS
then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJSON_EXPORT_SYMBOLS does
*/
#define CJSON_CDECL __cdecl
#define CJSON_STDCALL __stdcall
/* export symbols by default, this is necessary for copy pasting the C and header file */
#if !defined(CJSON_HIDE_SYMBOLS) && !defined(CJSON_IMPORT_SYMBOLS) && !defined(CJSON_EXPORT_SYMBOLS)
#define CJSON_EXPORT_SYMBOLS
#endif
#if defined(CJSON_HIDE_SYMBOLS)
#define CJSON_PUBLIC(type) type CJSON_STDCALL
#elif defined(CJSON_EXPORT_SYMBOLS)
#define CJSON_PUBLIC(type) __declspec(dllexport) type CJSON_STDCALL
#elif defined(CJSON_IMPORT_SYMBOLS)
#define CJSON_PUBLIC(type) __declspec(dllimport) type CJSON_STDCALL
#endif
#else /* !__WINDOWS__ */
#define CJSON_CDECL
#define CJSON_STDCALL
#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(CJSON_API_VISIBILITY)
#define CJSON_PUBLIC(type) __attribute__((visibility("default"))) type
#else
#define CJSON_PUBLIC(type) type
#endif
#endif
/* project version */
#define CJSON_VERSION_MAJOR 1
#define CJSON_VERSION_MINOR 7
#define CJSON_VERSION_PATCH 13
#include <stddef.h>
/* cJSON Types: */
#define cJSON_Invalid (0)
#define cJSON_False (1 << 0)
#define cJSON_True (1 << 1)
#define cJSON_NULL (1 << 2)
#define cJSON_Number (1 << 3)
#define cJSON_String (1 << 4)
#define cJSON_Array (1 << 5)
#define cJSON_Object (1 << 6)
#define cJSON_Raw (1 << 7) /* raw json */
#define cJSON_IsReference 256
#define cJSON_StringIsConst 512
/* The cJSON structure: */
typedef struct cJSON
{
/* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
struct cJSON *next;
struct cJSON *prev;
/* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
struct cJSON *child;
/* The type of the item, as above. */
int type;
/* The item's string, if type==cJSON_String and type == cJSON_Raw */
char *valuestring;
/* writing to valueint is DEPRECATED, use cJSON_SetNumberValue instead */
int valueint;
/* The item's number, if type==cJSON_Number */
double valuedouble;
/* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
char *string;
} cJSON;
typedef struct cJSON_Hooks
{
/* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
void *(CJSON_CDECL *malloc_fn)(size_t sz);
void (CJSON_CDECL *free_fn)(void *ptr);
} cJSON_Hooks;
typedef int cJSON_bool;
/* Limits how deeply nested arrays/objects can be before cJSON rejects to parse them.
* This is to prevent stack overflows. */
#ifndef CJSON_NESTING_LIMIT
#define CJSON_NESTING_LIMIT 1000
#endif
/* returns the version of cJSON as a string */
CJSON_PUBLIC(const char*) cJSON_Version(void);
/* Supply malloc, realloc and free functions to cJSON */
CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks);
/* Memory Management: the caller is always responsible to free the results from all variants of cJSON_Parse (with cJSON_Delete) and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or cJSON_free as appropriate). The exception is cJSON_PrintPreallocated, where the caller has full responsibility of the buffer. */
/* Supply a block of JSON, and this returns a cJSON object you can interrogate. */
CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length);
/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
/* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error so will match cJSON_GetErrorPtr(). */
CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated);
CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated);
/* Render a cJSON entity to text for transfer/storage. */
CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
/* Render a cJSON entity to text for transfer/storage without any formatting. */
CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
/* Render a cJSON entity to text using a buffer already allocated in memory with given length. Returns 1 on success and 0 on failure. */
/* NOTE: cJSON is not always 100% accurate in estimating how much memory it will use, so to be safe allocate 5 bytes more than you actually need */
CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format);
/* Delete a cJSON entity and all subentities. */
CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);
/* Returns the number of items in an array (or object). */
CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
/* Retrieve item number "index" from array "array". Returns NULL if unsuccessful. */
CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
/* Get item "string" from object. Case insensitive. */
CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string);
CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string);
CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string);
/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
/* Check item type and return its value */
CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item);
CJSON_PUBLIC(double) cJSON_GetNumberValue(cJSON *item);
/* These functions check the type of an item */
CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item);
CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item);
/* These calls create a cJSON item of the appropriate type. */
CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean);
CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
/* raw json */
CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
/* Create a string where valuestring references a string so
* it will not be freed by cJSON_Delete */
CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
/* Create an object/array that only references it's elements so
* they will not be freed by cJSON_Delete */
CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
/* These utilities create an Array of count items.
* The parameter count cannot be greater than the number of elements in the number array, otherwise array access will be out of bounds.*/
CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count);
/* Append item to the specified array/object. */
CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
/* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object.
* WARNING: When this function was used, make sure to always check that (item->type & cJSON_StringIsConst) is zero before
* writing to `item->string` */
CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
/* Remove/Detach items from Arrays/Objects. */
CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item);
CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
/* Update array items. */
CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement);
CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,const char *string,cJSON *newitem);
/* Duplicate a cJSON item */
CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
* need to be released. With recurse!=0, it will duplicate any children connected to the item.
* The item->next and ->prev pointers are always zero on return from Duplicate. */
/* Recursively compare two cJSON items for equality. If either a or b is NULL or invalid, they will be considered unequal.
* case_sensitive determines if object keys are treated case sensitive (1) or case insensitive (0) */
CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive);
/* Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
* The input pointer json cannot point to a read-only address area, such as a string constant,
* but should point to a readable and writable adress area. */
CJSON_PUBLIC(void) cJSON_Minify(char *json);
/* Helper functions for creating and adding items to an object at the same time.
* They return the added item or NULL on failure. */
CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name);
CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name);
CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name);
CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean);
CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number);
CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string);
CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw);
CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name);
CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name);
/* When assigning an integer value, it needs to be propagated to valuedouble too. */
#define cJSON_SetIntValue(object, number) ((object) ? (object)->valueint = (object)->valuedouble = (number) : (number))
/* helper for the cJSON_SetNumberValue macro */
CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
#define cJSON_SetNumberValue(object, number) ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) : (number))
/* Change the valuestring of a cJSON_String object, only takes effect when type of object is cJSON_String */
CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
/* Macro for iterating over an array or object */
#define cJSON_ArrayForEach(element, array) for(element = (array != NULL) ? (array)->child : NULL; element != NULL; element = element->next)
/* malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks */
CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
CJSON_PUBLIC(void) cJSON_free(void *object);
#ifdef __cplusplus
}
#endif
#endif

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/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */
/**
@file confini.h
@brief libconfini header
@author Stefano Gioffr&eacute;
@copyright GNU General Public License, version 3 or any later version
@version 1.14.0
@date 2016-2020
@see https://madmurphy.github.io/libconfini
**/
#ifndef _LIBCONFINI_HEADER_
#define _LIBCONFINI_HEADER_
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/* PRIVATE (HEADER-SCOPED) MACROS */
#define __INIFORMAT_TABLE_CB_FIELDS__(NAME, OFFSET, SIZE, DEFVAL) \
unsigned char NAME:SIZE;
#define __INIFORMAT_TABLE_CB_DEFAULT__(NAME, OFFSET, SIZE, DEFVAL) DEFVAL,
#define __INIFORMAT_TABLE_CB_ZERO__(NAME, OFFSET, SIZE, DEFVAL) 0,
#define _LIBCONFINI_INIFORMAT_TYPE_ \
struct IniFormat { INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_FIELDS__) }
#define _LIBCONFINI_DEFAULT_FORMAT_ \
{ INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_DEFAULT__) }
#define _LIBCONFINI_UNIXLIKE_FORMAT_ \
{ INIFORMAT_TABLE_AS(__INIFORMAT_TABLE_CB_ZERO__) }
/* PUBLIC MACROS */
/**
@brief Calls a user-given macro (that accepts four arguments) for each row
of the table
**/
/*
NOTE: The following table and the order of its rows **define** (and link
together) both the #IniFormat and #IniFormatNum data types declared in this
header
*/
#define INIFORMAT_TABLE_AS(_____) /* IniFormat table *\
NAME BIT SIZE DEFAULT
*/\
_____( delimiter_symbol, 0, 7, INI_EQUALS ) \
_____( case_sensitive, 7, 1, false )/*
*/\
_____( semicolon_marker, 8, 2, INI_DISABLED_OR_COMMENT ) \
_____( hash_marker, 10, 2, INI_DISABLED_OR_COMMENT ) \
_____( section_paths, 12, 2, INI_ABSOLUTE_AND_RELATIVE ) \
_____( multiline_nodes, 14, 2, INI_MULTILINE_EVERYWHERE )/*
*/\
_____( no_single_quotes, 16, 1, false ) \
_____( no_double_quotes, 17, 1, false ) \
_____( no_spaces_in_names, 18, 1, false ) \
_____( implicit_is_not_empty, 19, 1, false ) \
_____( do_not_collapse_values, 20, 1, false ) \
_____( preserve_empty_quotes, 21, 1, false ) \
_____( disabled_after_space, 22, 1, false ) \
_____( disabled_can_be_implicit, 23, 1, false )
/**
@brief Checks whether a format does **not** support escape sequences
**/
#define INIFORMAT_HAS_NO_ESC(FORMAT) \
(FORMAT.multiline_nodes == INI_NO_MULTILINE && \
FORMAT.no_double_quotes && FORMAT.no_single_quotes)
/* PUBLIC TYPEDEFS */
/**
@brief 24-bit bitfield representing the format of an INI file (INI
dialect)
**/
typedef _LIBCONFINI_INIFORMAT_TYPE_ IniFormat;
/**
@brief Global statistics about an INI file
**/
typedef struct IniStatistics {
const IniFormat format;
const size_t bytes;
const size_t members;
} IniStatistics;
/**
@brief Dispatch of a single INI node
**/
typedef struct IniDispatch {
const IniFormat format;
uint8_t type;
char * data;
char * value;
const char * append_to;
size_t d_len;
size_t v_len;
size_t at_len;
size_t dispatch_id;
} IniDispatch;
/**
@brief The unique ID of an INI format (24-bit maximum)
**/
typedef uint32_t IniFormatNum;
/**
@brief Callback function for handling an #IniStatistics structure
**/
typedef int (* IniStatsHandler) (
IniStatistics * statistics,
void * user_data
);
/**
@brief Callback function for handling an #IniDispatch structure
**/
typedef int (* IniDispHandler) (
IniDispatch * dispatch,
void * user_data
);
/**
@brief Callback function for handling an INI string belonging to a
sequence of INI strings
**/
typedef int (* IniStrHandler) (
char * ini_string,
size_t string_length,
size_t string_num,
IniFormat format,
void * user_data
);
/**
@brief Callback function for handling a selected fragment of an INI string
**/
typedef int (* IniSubstrHandler) (
const char * ini_string,
size_t fragm_offset,
size_t fragm_length,
size_t fragm_num,
IniFormat format,
void * user_data
);
/* PUBLIC FUNCTIONS */
extern int strip_ini_cache (
register char * const ini_source,
const size_t ini_length,
const IniFormat format,
const IniStatsHandler f_init,
const IniDispHandler f_foreach,
void * const user_data
);
extern int load_ini_file (
FILE * const ini_file,
const IniFormat format,
const IniStatsHandler f_init,
const IniDispHandler f_foreach,
void * const user_data
);
extern int load_ini_path (
const char * const path,
const IniFormat format,
const IniStatsHandler f_init,
const IniDispHandler f_foreach,
void * const user_data
);
extern bool ini_string_match_ss (
const char * const simple_string_a,
const char * const simple_string_b,
const IniFormat format
);
extern bool ini_string_match_si (
const char * const simple_string,
const char * const ini_string,
const IniFormat format
);
extern bool ini_string_match_ii (
const char * const ini_string_a,
const char * const ini_string_b,
const IniFormat format
);
extern bool ini_array_match (
const char * const ini_string_a,
const char * const ini_string_b,
const char delimiter,
const IniFormat format
);
extern size_t ini_unquote (
char * const ini_string,
const IniFormat format
);
extern size_t ini_string_parse (
char * const ini_string,
const IniFormat format
);
extern size_t ini_array_get_length (
const char * const ini_string,
const char delimiter,
const IniFormat format
);
extern int ini_array_foreach (
const char * const ini_string,
const char delimiter,
const IniFormat format,
const IniSubstrHandler f_foreach,
void * const user_data
);
extern size_t ini_array_shift (
const char ** const ini_strptr,
const char delimiter,
const IniFormat format
);
extern size_t ini_array_collapse (
char * const ini_string,
const char delimiter,
const IniFormat format
);
extern char * ini_array_break (
char * const ini_string,
const char delimiter,
const IniFormat format
);
extern char * ini_array_release (
char ** const ini_strptr,
const char delimiter,
const IniFormat format
);
extern int ini_array_split (
char * const ini_string,
const char delimiter,
const IniFormat format,
const IniStrHandler f_foreach,
void * const user_data
);
extern void ini_global_set_lowercase_mode (
const bool lowercase
);
extern void ini_global_set_implicit_value (
char * const implicit_value,
const size_t implicit_v_len
);
extern IniFormatNum ini_fton (
const IniFormat format
);
extern IniFormat ini_ntof (
const IniFormatNum format_id
);
extern int ini_get_bool (
const char * const ini_string,
const int when_fail
);
/* PUBLIC LINKS */
extern int (* const ini_get_int) (
const char * ini_string
);
extern long int (* const ini_get_lint) (
const char * ini_string
);
extern long long int (* const ini_get_llint) (
const char * ini_string
);
extern double (* const ini_get_double) (
const char * ini_string
);
/**
@brief Legacy support, soon to be replaced with a `float` data type --
please **do not use `ini_get_float()`!**
**/
#define ini_get_float \
_Pragma("GCC warning \"function `ini_get_float()` is deprecated for parsing a `double` data type; use `ini_get_double()` instead\"") \
ini_get_double
/* PUBLIC CONSTANTS AND VARIABLES */
/**
@brief Error mask (flags not present in user-generated interruptions)
**/
#define CONFINI_ERROR 252
/**
@brief Error codes
**/
enum ConfiniInterruptNo {
CONFINI_SUCCESS = 0, /**< There have been no interruptions, everything
went well [value=0] **/
CONFINI_IINTR = 1, /**< Interrupted by the user during `f_init()`
[value=1] **/
CONFINI_FEINTR = 2, /**< Interrupted by the user during `f_foreach()`
[value=2] **/
CONFINI_ENOENT = 4, /**< File inaccessible [value=4] **/
CONFINI_ENOMEM = 5, /**< Error allocating virtual memory [value=5] **/
CONFINI_EIO = 6, /**< Error reading the file [value=6] **/
CONFINI_EOOR = 7, /**< Out-of-range error: callbacks are more than
expected [value=7] **/
CONFINI_EBADF = 8, /**< The stream specified is not a seekable stream
[value=8] **/
CONFINI_EFBIG = 9, /**< File too large [value=9] **/
CONFINI_EROADDR = 10 /**< Address is read-only [value=10] **/
};
/**
@brief INI node types
**/
enum IniNodeType {
INI_UNKNOWN = 0, /**< This is a node impossible to categorize
[value=0] **/
INI_VALUE = 1, /**< Not used by **libconfini** (values are
dispatched together with keys) -- but
available for user's implementations
[value=1] **/
INI_KEY = 2, /**< This is a key [value=2] **/
INI_SECTION = 3, /**< This is a section or a section path
[value=3] **/
INI_COMMENT = 4, /**< This is a comment [value=4] **/
INI_INLINE_COMMENT = 5, /**< This is an inline comment [value=5] **/
INI_DISABLED_KEY = 6, /**< This is a disabled key [value=6] **/
INI_DISABLED_SECTION = 7 /**< This is a disabled section path
[value=7] **/
};
/**
@brief Common array and key-value delimiters (but a delimiter may also be
any other ASCII character not present in this list)
**/
enum IniDelimiters {
INI_ANY_SPACE = 0, /**< In multi-line INIs:
`/(?:\\(?:\n\r?|\r\n?)|[\t \v\f])+/`, in
non-multi-line INIs: `/[\t \v\f])+/` **/
INI_EQUALS = '=', /**< Equals character (`=`) **/
INI_COLON = ':', /**< Colon character (`:`) **/
INI_DOT = '.', /**< Dot character (`.`) **/
INI_COMMA = ',' /**< Comma character (`,`) **/
};
/**
@brief Possible values of #IniFormat::semicolon_marker and
#IniFormat::hash_marker (i.e., meaning of `/\s+;/` and `/\s+#/` in
respect to a format)
**/
enum IniCommentMarker {
INI_DISABLED_OR_COMMENT = 0, /**< This marker opens a comment or a
disabled entry **/
INI_ONLY_COMMENT = 1, /**< This marker opens a comment **/
INI_IGNORE = 2, /**< This marker opens a comment that has
been marked for deletion and must not
be dispatched or counted **/
INI_IS_NOT_A_MARKER = 3 /**< This is not a marker at all, but a
normal character instead **/
};
/**
@brief Possible values of #IniFormat::section_paths
**/
enum IniSectionPaths {
INI_ABSOLUTE_AND_RELATIVE = 0, /**< Section paths starting with a dot
express nesting to the current parent,
to root otherwise **/
INI_ABSOLUTE_ONLY = 1, /**< Section paths starting with a dot will
be cleaned of their leading dot and
appended to root **/
INI_ONE_LEVEL_ONLY = 2, /**< Format supports sections, but the dot
does not express nesting and is not a
meta-character **/
INI_NO_SECTIONS = 3 /**< Format does *not* support sections --
`/\[[^\]]*\]/g`, if any, will be
treated as keys! **/
};
/**
@brief Possible values of #IniFormat::multiline_nodes
**/
enum IniMultiline {
INI_MULTILINE_EVERYWHERE = 0, /**< Comments, section paths and keys
-- disabled or not -- are allowed
to be multi-line **/
INI_BUT_COMMENTS = 1, /**< Only section paths and keys --
disabled or not -- are allowed to
be multi-line **/
INI_BUT_DISABLED_AND_COMMENTS = 2, /**< Only active section paths and
active keys are allowed to be
multi-line **/
INI_NO_MULTILINE = 3 /**< Multi-line escape sequences are
disabled **/
};
/**
@brief A model format for standard INI files
**/
static const IniFormat INI_DEFAULT_FORMAT = _LIBCONFINI_DEFAULT_FORMAT_;
/**
@brief A model format for Unix-like .conf files (where space characters
are delimiters between keys and values)
**/
/* All fields are set to `0` here. */
static const IniFormat INI_UNIXLIKE_FORMAT = _LIBCONFINI_UNIXLIKE_FORMAT_;
/**
@brief If set to `true`, key and section names in case-insensitive INI
formats will be dispatched lowercase, verbatim otherwise (default
value: `false`)
**/
extern bool INI_GLOBAL_LOWERCASE_MODE;
/**
@brief Value to be assigned to implicit keys (default value: `NULL`)
**/
extern char * INI_GLOBAL_IMPLICIT_VALUE;
/**
@brief Length of the value assigned to implicit keys (default value: `0`)
**/
extern size_t INI_GLOBAL_IMPLICIT_V_LEN;
/* CLEAN THE PRIVATE ENVIRONMENT */
#undef _LIBCONFINI_UNIXLIKE_FORMAT_
#undef _LIBCONFINI_DEFAULT_FORMAT_
#undef _LIBCONFINI_INIFORMAT_TYPE_
#undef __INIFORMAT_TABLE_CB_ZERO__
#undef __INIFORMAT_TABLE_CB_DEFAULT__
#undef __INIFORMAT_TABLE_CB_FIELDS__
/* END OF `_LIBCONFINI_HEADER_` */
#ifdef __cplusplus
}
#endif
#endif
/* EOF */

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