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109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/***************************************************************************
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conf_parse.h Copyright (C) 2007 Christoph Reichenbach
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This program may be modified and copied freely according to the terms of
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the GNU general public license (GPL), as long as the above copyright
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notice and the licensing information contained herein are preserved.
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Please refer to www.gnu.org for licensing details.
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This work is provided AS IS, without warranty of any kind, expressed or
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implied, including but not limited to the warranties of merchantibility,
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noninfringement, and fitness for a specific purpose. The author will not
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be held liable for any damage caused by this work or derivatives of it.
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By using this source code, you agree to the licensing terms as stated
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above.
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Please contact the maintainer for bug reports or inquiries.
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Current Maintainer:
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Christoph Reichenbach (CR) <jameson@linuxgames.com>
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***************************************************************************/
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/* RAW parse (config layers zero and one) */
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#ifndef CONF_PARSE_H_
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#define CONF_PARSE_H_
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#include "sci/include/conf_extension.h"
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#define CONF_PARSE_TYPE_WHITESPACE 1 /* Whitespace, comments */
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#define CONF_PARSE_TYPE_SUBSECTION 2 /* Subsection division */
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#define CONF_PARSE_TYPE_OPTION 3 /* Option or driver assignment */
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#define CONF_PARSE_TYPE_INCLUDE 4 /* External include file */
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#define CONF_PARSE_TYPE_EXTENSION 5 /* An ``extension'' */
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#define CONF_PARSE_TYPE_LEXERROR 255 /* Something lexically broken (stored in ``whitespace'') */
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/* Base options */
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#define CONF_PARSE_BASEOPTION_VERSION 0
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#define CONF_PARSE_BASEOPTION_RESOURCEDIR 1
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#define CONF_PARSE_BASEOPTION_DEBUGMODE 2
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typedef struct _conf_parse_struct {
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int type; /* c. CONF_PARSE_TYPE */
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int line_nr; /* Line number in the current input file */
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struct _conf_parse_struct *prev;
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struct _conf_parse_struct *next;
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struct _conf_parse_struct *overridden; /* In case we overrode something */
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union {
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char *whitespace;
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struct {
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char *subsystem; /* may be NULL if driver==NULL */
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char *driver; /* may be NULL */
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char *option;
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char *centre_whitespace;
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char *value;
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char *terminal_whitespace;
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} assignment; /* driver assignment, option */
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struct {
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char *pre_whitespace;
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char *name;
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char *post_whitespace;
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} subsection;
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struct {
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char *include_prefix; /* NULL for system includes */
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char *filename; /* Extracted from include_stmt, also a copy */
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char *include_suffix; /* NULL for system includes */
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int modifiable; /* May we write to this file? */
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struct _conf_parse_struct *options_head;
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struct _conf_parse_struct *options_end;
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} include;
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conf_extension_t *extension; /* Extended information, cf. conf_extension.h */
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} data;
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} conf_parse_t;
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conf_parse_t *
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conf_read_file(char *config_file_name, int modifiable, conf_parse_t *previous);
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/* Read configuration file
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** Parameters: (char *) config_file_name: File name for the source config file
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** (int) modifiable: Whether to treat the result as modifiable
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** (conf_parse_t *) previous: Head of the previous configuration, or NULL if none
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** Returns : (conf_parse_t *) Head of the combined config parse, or NULL on failure
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** Effects : (stderr) Error message if the specified file was found but parsing failed
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*/
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void
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conf_free_parse(conf_parse_t *raw_config);
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/* Deallocates a conf_parse_t
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** Parameters: (conf_parse_t *) raw_config: The raw parse to deallocate
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** Returns : usually.
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*/
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void
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conf_write_parse(conf_parse_t *raw_config);
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/* Writes out all writeable parts of the configuration parse to the source files, if writeable
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** Parameters: (conf_parse_t *) raw_config
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** Effects : (stderr) Prints error message if ``modifiable'' file could not be written to
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** (filesystem) All ``modifiable'' config files are overwritten
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*/
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#endif /* !defined (CONF_PARSE_H_) */
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