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150 lines
5.2 KiB
C
150 lines
5.2 KiB
C
/* inih -- simple .INI file parser
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SPDX-License-Identifier: BSD-3-Clause
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Copyright (C) 2009-2020, Ben Hoyt
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inih is released under the New BSD license (see LICENSE.txt). Go to the project
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home page for more info:
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https://github.com/benhoyt/inih
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*/
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#ifndef INI_H
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#define INI_H
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/* Make this header file easier to include in C++ code */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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/* Nonzero if ini_handler callback should accept lineno parameter. */
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#ifndef INI_HANDLER_LINENO
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#define INI_HANDLER_LINENO 0
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#endif
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/* Typedef for prototype of handler function. */
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#if INI_HANDLER_LINENO
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typedef int (*ini_handler)(void* user, const char* section,
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const char* name, const char* value,
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int lineno);
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#else
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typedef int (*ini_handler)(void* user, const char* section,
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const char* name, const char* value);
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#endif
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/* Typedef for prototype of fgets-style reader function. */
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typedef char* (*ini_reader)(char* str, int num, void* stream);
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/* Parse given INI-style file. May have [section]s, name=value pairs
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(whitespace stripped), and comments starting with ';' (semicolon). Section
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is "" if name=value pair parsed before any section heading. name:value
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pairs are also supported as a concession to Python's configparser.
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For each name=value pair parsed, call handler function with given user
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pointer as well as section, name, and value (data only valid for duration
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of handler call). Handler should return nonzero on success, zero on error.
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Returns 0 on success, line number of first error on parse error (doesn't
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stop on first error), -1 on file open error, or -2 on memory allocation
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error (only when INI_USE_STACK is zero).
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*/
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int ini_parse(const char* filename, ini_handler handler, void* user);
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/* Same as ini_parse(), but takes a FILE* instead of filename. This doesn't
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close the file when it's finished -- the caller must do that. */
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int ini_parse_file(FILE* file, ini_handler handler, void* user);
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/* Same as ini_parse(), but takes an ini_reader function pointer instead of
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filename. Used for implementing custom or string-based I/O (see also
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ini_parse_string). */
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int ini_parse_stream(ini_reader reader, void* stream, ini_handler handler,
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void* user);
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/* Same as ini_parse(), but takes a zero-terminated string with the INI data
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instead of a file. Useful for parsing INI data from a network socket or
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already in memory. */
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int ini_parse_string(const char* string, ini_handler handler, void* user);
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/* Nonzero to allow multi-line value parsing, in the style of Python's
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configparser. If allowed, ini_parse() will call the handler with the same
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name for each subsequent line parsed. */
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#ifndef INI_ALLOW_MULTILINE
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#define INI_ALLOW_MULTILINE 1
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#endif
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/* Nonzero to allow a UTF-8 BOM sequence (0xEF 0xBB 0xBF) at the start of
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the file. See https://github.com/benhoyt/inih/issues/21 */
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#ifndef INI_ALLOW_BOM
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#define INI_ALLOW_BOM 1
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#endif
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/* Chars that begin a start-of-line comment. Per Python configparser, allow
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both ; and # comments at the start of a line by default. */
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#ifndef INI_START_COMMENT_PREFIXES
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#define INI_START_COMMENT_PREFIXES ";#"
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#endif
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/* Nonzero to allow inline comments (with valid inline comment characters
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specified by INI_INLINE_COMMENT_PREFIXES). Set to 0 to turn off and match
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Python 3.2+ configparser behaviour. */
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#ifndef INI_ALLOW_INLINE_COMMENTS
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#define INI_ALLOW_INLINE_COMMENTS 1
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#endif
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#ifndef INI_INLINE_COMMENT_PREFIXES
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#define INI_INLINE_COMMENT_PREFIXES ";"
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#endif
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/* Nonzero to use stack for line buffer, zero to use heap (malloc/free). */
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#ifndef INI_USE_STACK
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#define INI_USE_STACK 1
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#endif
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/* Maximum line length for any line in INI file (stack or heap). Note that
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this must be 3 more than the longest line (due to '\r', '\n', and '\0'). */
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#ifndef INI_MAX_LINE
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#define INI_MAX_LINE 200
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#endif
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/* Nonzero to allow heap line buffer to grow via realloc(), zero for a
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fixed-size buffer of INI_MAX_LINE bytes. Only applies if INI_USE_STACK is
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zero. */
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#ifndef INI_ALLOW_REALLOC
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#define INI_ALLOW_REALLOC 0
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#endif
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/* Initial size in bytes for heap line buffer. Only applies if INI_USE_STACK
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is zero. */
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#ifndef INI_INITIAL_ALLOC
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#define INI_INITIAL_ALLOC 200
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#endif
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/* Stop parsing on first error (default is to keep parsing). */
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#ifndef INI_STOP_ON_FIRST_ERROR
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#define INI_STOP_ON_FIRST_ERROR 0
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#endif
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/* Nonzero to call the handler at the start of each new section (with
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name and value NULL). Default is to only call the handler on
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each name=value pair. */
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#ifndef INI_CALL_HANDLER_ON_NEW_SECTION
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#define INI_CALL_HANDLER_ON_NEW_SECTION 0
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#endif
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/* Nonzero to allow a name without a value (no '=' or ':' on the line) and
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call the handler with value NULL in this case. Default is to treat
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no-value lines as an error. */
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#ifndef INI_ALLOW_NO_VALUE
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#define INI_ALLOW_NO_VALUE 0
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#endif
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/* Nonzero to use custom ini_malloc, ini_free, and ini_realloc memory
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allocation functions (INI_USE_STACK must also be 0). These functions must
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have the same signatures as malloc/free/realloc and behave in a similar
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way. ini_realloc is only needed if INI_ALLOW_REALLOC is set. */
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#ifndef INI_CUSTOM_ALLOCATOR
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#define INI_CUSTOM_ALLOCATOR 0
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* INI_H */
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