mirror of
https://github.com/OpenFusionProject/OpenFusion.git
synced 2024-11-24 14:01:05 +00:00
463 lines
14 KiB
C++
Vendored
463 lines
14 KiB
C++
Vendored
// Read an INI file into easy-to-access name/value pairs.
|
|
|
|
// inih and INIReader are released under the New BSD license (see LICENSE.txt).
|
|
// Go to the project home page for more info:
|
|
//
|
|
// https://github.com/benhoyt/inih
|
|
/* inih -- simple .INI file parser
|
|
|
|
inih is released under the New BSD license (see LICENSE.txt). Go to the project
|
|
home page for more info:
|
|
|
|
https://github.com/benhoyt/inih
|
|
|
|
*/
|
|
|
|
#ifndef __INI_H__
|
|
#define __INI_H__
|
|
|
|
/* Make this header file easier to include in C++ code */
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
/* Typedef for prototype of handler function. */
|
|
typedef int (*ini_handler)(void* user, const char* section,
|
|
const char* name, const char* value);
|
|
|
|
/* Typedef for prototype of fgets-style reader function. */
|
|
typedef char* (*ini_reader)(char* str, int num, void* stream);
|
|
|
|
/* Parse given INI-style file. May have [section]s, name=value pairs
|
|
(whitespace stripped), and comments starting with ';' (semicolon). Section
|
|
is "" if name=value pair parsed before any section heading. name:value
|
|
pairs are also supported as a concession to Python's configparser.
|
|
|
|
For each name=value pair parsed, call handler function with given user
|
|
pointer as well as section, name, and value (data only valid for duration
|
|
of handler call). Handler should return nonzero on success, zero on error.
|
|
|
|
Returns 0 on success, line number of first error on parse error (doesn't
|
|
stop on first error), -1 on file open error, or -2 on memory allocation
|
|
error (only when INI_USE_STACK is zero).
|
|
*/
|
|
int ini_parse(const char* filename, ini_handler handler, void* user);
|
|
|
|
/* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't
|
|
close the file when it's finished -- the caller must do that. */
|
|
int ini_parse_file(FILE* file, ini_handler handler, void* user);
|
|
|
|
/* Same as ini_parse(), but takes an ini_reader function pointer instead of
|
|
filename. Used for implementing custom or string-based I/O. */
|
|
int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
|
|
void* user);
|
|
|
|
/* Nonzero to allow multi-line value parsing, in the style of Python's
|
|
configparser. If allowed, ini_parse() will call the handler with the same
|
|
name for each subsequent line parsed. */
|
|
#ifndef INI_ALLOW_MULTILINE
|
|
#define INI_ALLOW_MULTILINE 1
|
|
#endif
|
|
|
|
/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of
|
|
the file. See http://code.google.com/p/inih/issues/detail?id=21 */
|
|
#ifndef INI_ALLOW_BOM
|
|
#define INI_ALLOW_BOM 1
|
|
#endif
|
|
|
|
/* Nonzero to allow inline comments (with valid inline comment characters
|
|
specified by INI_INLINE_COMMENT_PREFIXES). Set to 0 to turn off and match
|
|
Python 3.2+ configparser behaviour. */
|
|
#ifndef INI_ALLOW_INLINE_COMMENTS
|
|
#define INI_ALLOW_INLINE_COMMENTS 1
|
|
#endif
|
|
#ifndef INI_INLINE_COMMENT_PREFIXES
|
|
#define INI_INLINE_COMMENT_PREFIXES ";"
|
|
#endif
|
|
|
|
/* Nonzero to use stack, zero to use heap (malloc/free). */
|
|
#ifndef INI_USE_STACK
|
|
#define INI_USE_STACK 1
|
|
#endif
|
|
|
|
/* Stop parsing on first error (default is to keep parsing). */
|
|
#ifndef INI_STOP_ON_FIRST_ERROR
|
|
#define INI_STOP_ON_FIRST_ERROR 0
|
|
#endif
|
|
|
|
/* Maximum line length for any line in INI file. */
|
|
#ifndef INI_MAX_LINE
|
|
#define INI_MAX_LINE 200
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/* inih -- simple .INI file parser
|
|
|
|
inih is released under the New BSD license (see LICENSE.txt). Go to the project
|
|
home page for more info:
|
|
|
|
https://github.com/benhoyt/inih
|
|
|
|
*/
|
|
|
|
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
|
|
#define _CRT_SECURE_NO_WARNINGS
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
|
|
#if !INI_USE_STACK
|
|
#include <stdlib.h>
|
|
#endif
|
|
|
|
#define MAX_SECTION 50
|
|
#define MAX_NAME 50
|
|
|
|
/* Strip whitespace chars off end of given string, in place. Return s. */
|
|
inline static char* rstrip(char* s)
|
|
{
|
|
char* p = s + strlen(s);
|
|
while (p > s && isspace((unsigned char)(*--p)))
|
|
*p = '\0';
|
|
return s;
|
|
}
|
|
|
|
/* Return pointer to first non-whitespace char in given string. */
|
|
inline static char* lskip(const char* s)
|
|
{
|
|
while (*s && isspace((unsigned char)(*s)))
|
|
s++;
|
|
return (char*)s;
|
|
}
|
|
|
|
/* Return pointer to first char (of chars) or inline comment in given string,
|
|
or pointer to null at end of string if neither found. Inline comment must
|
|
be prefixed by a whitespace character to register as a comment. */
|
|
inline static char* find_chars_or_comment(const char* s, const char* chars)
|
|
{
|
|
#if INI_ALLOW_INLINE_COMMENTS
|
|
int was_space = 0;
|
|
while (*s && (!chars || !strchr(chars, *s)) &&
|
|
!(was_space && strchr(INI_INLINE_COMMENT_PREFIXES, *s))) {
|
|
was_space = isspace((unsigned char)(*s));
|
|
s++;
|
|
}
|
|
#else
|
|
while (*s && (!chars || !strchr(chars, *s))) {
|
|
s++;
|
|
}
|
|
#endif
|
|
return (char*)s;
|
|
}
|
|
|
|
/* Version of strncpy that ensures dest (size bytes) is null-terminated. */
|
|
inline static char* strncpy0(char* dest, const char* src, size_t size)
|
|
{
|
|
strncpy(dest, src, size);
|
|
dest[size - 1] = '\0';
|
|
return dest;
|
|
}
|
|
|
|
/* See documentation in header file. */
|
|
inline int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
|
|
void* user)
|
|
{
|
|
/* Uses a fair bit of stack (use heap instead if you need to) */
|
|
#if INI_USE_STACK
|
|
char line[INI_MAX_LINE];
|
|
#else
|
|
char* line;
|
|
#endif
|
|
char section[MAX_SECTION] = "";
|
|
char prev_name[MAX_NAME] = "";
|
|
|
|
char* start;
|
|
char* end;
|
|
char* name;
|
|
char* value;
|
|
int lineno = 0;
|
|
int error = 0;
|
|
|
|
#if !INI_USE_STACK
|
|
line = (char*)malloc(INI_MAX_LINE);
|
|
if (!line) {
|
|
return -2;
|
|
}
|
|
#endif
|
|
|
|
/* Scan through stream line by line */
|
|
while (reader(line, INI_MAX_LINE, stream) != NULL) {
|
|
lineno++;
|
|
|
|
start = line;
|
|
#if INI_ALLOW_BOM
|
|
if (lineno == 1 && (unsigned char)start[0] == 0xEF &&
|
|
(unsigned char)start[1] == 0xBB &&
|
|
(unsigned char)start[2] == 0xBF) {
|
|
start += 3;
|
|
}
|
|
#endif
|
|
start = lskip(rstrip(start));
|
|
|
|
if (*start == ';' || *start == '#') {
|
|
/* Per Python configparser, allow both ; and # comments at the
|
|
start of a line */
|
|
}
|
|
#if INI_ALLOW_MULTILINE
|
|
else if (*prev_name && *start && start > line) {
|
|
|
|
#if INI_ALLOW_INLINE_COMMENTS
|
|
end = find_chars_or_comment(start, NULL);
|
|
if (*end)
|
|
*end = '\0';
|
|
rstrip(start);
|
|
#endif
|
|
|
|
/* Non-blank line with leading whitespace, treat as continuation
|
|
of previous name's value (as per Python configparser). */
|
|
if (!handler(user, section, prev_name, start) && !error)
|
|
error = lineno;
|
|
}
|
|
#endif
|
|
else if (*start == '[') {
|
|
/* A "[section]" line */
|
|
end = find_chars_or_comment(start + 1, "]");
|
|
if (*end == ']') {
|
|
*end = '\0';
|
|
strncpy0(section, start + 1, sizeof(section));
|
|
*prev_name = '\0';
|
|
}
|
|
else if (!error) {
|
|
/* No ']' found on section line */
|
|
error = lineno;
|
|
}
|
|
}
|
|
else if (*start) {
|
|
/* Not a comment, must be a name[=:]value pair */
|
|
end = find_chars_or_comment(start, "=:");
|
|
if (*end == '=' || *end == ':') {
|
|
*end = '\0';
|
|
name = rstrip(start);
|
|
value = lskip(end + 1);
|
|
#if INI_ALLOW_INLINE_COMMENTS
|
|
end = find_chars_or_comment(value, NULL);
|
|
if (*end)
|
|
*end = '\0';
|
|
#endif
|
|
rstrip(value);
|
|
|
|
/* Valid name[=:]value pair found, call handler */
|
|
strncpy0(prev_name, name, sizeof(prev_name));
|
|
if (!handler(user, section, name, value) && !error)
|
|
error = lineno;
|
|
}
|
|
else if (!error) {
|
|
/* No '=' or ':' found on name[=:]value line */
|
|
error = lineno;
|
|
}
|
|
}
|
|
|
|
#if INI_STOP_ON_FIRST_ERROR
|
|
if (error)
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
#if !INI_USE_STACK
|
|
free(line);
|
|
#endif
|
|
|
|
return error;
|
|
}
|
|
|
|
/* See documentation in header file. */
|
|
inline int ini_parse_file(FILE* file, ini_handler handler, void* user)
|
|
{
|
|
return ini_parse_stream((ini_reader)fgets, file, handler, user);
|
|
}
|
|
|
|
/* See documentation in header file. */
|
|
inline int ini_parse(const char* filename, ini_handler handler, void* user)
|
|
{
|
|
FILE* file;
|
|
int error;
|
|
|
|
file = fopen(filename, "r");
|
|
if (!file)
|
|
return -1;
|
|
error = ini_parse_file(file, handler, user);
|
|
fclose(file);
|
|
return error;
|
|
}
|
|
|
|
#endif /* __INI_H__ */
|
|
|
|
|
|
#ifndef __INIREADER_H__
|
|
#define __INIREADER_H__
|
|
|
|
#include <map>
|
|
#include <set>
|
|
#include <string>
|
|
|
|
// Read an INI file into easy-to-access name/value pairs. (Note that I've gone
|
|
// for simplicity here rather than speed, but it should be pretty decent.)
|
|
class INIReader
|
|
{
|
|
public:
|
|
// Empty Constructor
|
|
INIReader() {};
|
|
|
|
// Construct INIReader and parse given filename. See ini.h for more info
|
|
// about the parsing.
|
|
INIReader(std::string filename);
|
|
|
|
// Construct INIReader and parse given file. See ini.h for more info
|
|
// about the parsing.
|
|
INIReader(FILE *file);
|
|
|
|
// Return the result of ini_parse(), i.e., 0 on success, line number of
|
|
// first error on parse error, or -1 on file open error.
|
|
int ParseError() const;
|
|
|
|
// Return the list of sections found in ini file
|
|
const std::set<std::string>& Sections() const;
|
|
|
|
// Get a string value from INI file, returning default_value if not found.
|
|
std::string Get(std::string section, std::string name,
|
|
std::string default_value) const;
|
|
|
|
// Get an integer (long) value from INI file, returning default_value if
|
|
// not found or not a valid integer (decimal "1234", "-1234", or hex "0x4d2").
|
|
long GetInteger(std::string section, std::string name, long default_value) const;
|
|
|
|
// Get a real (floating point double) value from INI file, returning
|
|
// default_value if not found or not a valid floating point value
|
|
// according to strtod().
|
|
double GetReal(std::string section, std::string name, double default_value) const;
|
|
|
|
// Get a single precision floating point number value from INI file, returning
|
|
// default_value if not found or not a valid floating point value
|
|
// according to strtof().
|
|
float GetFloat(std::string section, std::string name, float default_value) const;
|
|
|
|
// Get a boolean value from INI file, returning default_value if not found or if
|
|
// not a valid true/false value. Valid true values are "true", "yes", "on", "1",
|
|
// and valid false values are "false", "no", "off", "0" (not case sensitive).
|
|
bool GetBoolean(std::string section, std::string name, bool default_value) const;
|
|
|
|
protected:
|
|
int _error;
|
|
std::map<std::string, std::string> _values;
|
|
std::set<std::string> _sections;
|
|
static std::string MakeKey(std::string section, std::string name);
|
|
static int ValueHandler(void* user, const char* section, const char* name,
|
|
const char* value);
|
|
};
|
|
|
|
#endif // __INIREADER_H__
|
|
|
|
|
|
#ifndef __INIREADER__
|
|
#define __INIREADER__
|
|
|
|
#include <algorithm>
|
|
#include <cctype>
|
|
#include <cstdlib>
|
|
|
|
inline INIReader::INIReader(std::string filename)
|
|
{
|
|
_error = ini_parse(filename.c_str(), ValueHandler, this);
|
|
}
|
|
|
|
inline INIReader::INIReader(FILE *file)
|
|
{
|
|
_error = ini_parse_file(file, ValueHandler, this);
|
|
}
|
|
|
|
inline int INIReader::ParseError() const
|
|
{
|
|
return _error;
|
|
}
|
|
|
|
inline const std::set<std::string>& INIReader::Sections() const
|
|
{
|
|
return _sections;
|
|
}
|
|
|
|
inline std::string INIReader::Get(std::string section, std::string name, std::string default_value) const
|
|
{
|
|
std::string key = MakeKey(section, name);
|
|
return _values.count(key) ? _values.at(key) : default_value;
|
|
}
|
|
|
|
inline long INIReader::GetInteger(std::string section, std::string name, long default_value) const
|
|
{
|
|
std::string valstr = Get(section, name, "");
|
|
const char* value = valstr.c_str();
|
|
char* end;
|
|
// This parses "1234" (decimal) and also "0x4D2" (hex)
|
|
long n = strtol(value, &end, 0);
|
|
return end > value ? n : default_value;
|
|
}
|
|
|
|
inline double INIReader::GetReal(std::string section, std::string name, double default_value) const
|
|
{
|
|
std::string valstr = Get(section, name, "");
|
|
const char* value = valstr.c_str();
|
|
char* end;
|
|
double n = strtod(value, &end);
|
|
return end > value ? n : default_value;
|
|
}
|
|
|
|
inline float INIReader::GetFloat(std::string section, std::string name, float default_value) const
|
|
{
|
|
std::string valstr = Get(section, name, "");
|
|
const char* value = valstr.c_str();
|
|
char* end;
|
|
float n = strtof(value, &end);
|
|
return end > value ? n : default_value;
|
|
}
|
|
|
|
inline bool INIReader::GetBoolean(std::string section, std::string name, bool default_value) const
|
|
{
|
|
std::string valstr = Get(section, name, "");
|
|
// Convert to lower case to make string comparisons case-insensitive
|
|
std::transform(valstr.begin(), valstr.end(), valstr.begin(), ::tolower);
|
|
if (valstr == "true" || valstr == "yes" || valstr == "on" || valstr == "1")
|
|
return true;
|
|
else if (valstr == "false" || valstr == "no" || valstr == "off" || valstr == "0")
|
|
return false;
|
|
else
|
|
return default_value;
|
|
}
|
|
|
|
inline std::string INIReader::MakeKey(std::string section, std::string name)
|
|
{
|
|
std::string key = section + "=" + name;
|
|
// Convert to lower case to make section/name lookups case-insensitive
|
|
std::transform(key.begin(), key.end(), key.begin(), ::tolower);
|
|
return key;
|
|
}
|
|
|
|
inline int INIReader::ValueHandler(void* user, const char* section, const char* name,
|
|
const char* value)
|
|
{
|
|
INIReader* reader = (INIReader*)user;
|
|
std::string key = MakeKey(section, name);
|
|
if (reader->_values[key].size() > 0)
|
|
reader->_values[key] += "\n";
|
|
reader->_values[key] += value;
|
|
reader->_sections.insert(section);
|
|
return 1;
|
|
}
|
|
|
|
#endif // __INIREADER__
|