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/* vi: set sw=4 ts=4: */
/*
* config file parser helper
*
* Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
* Also for use in uClibc (http://uclibc.org/) licensed under LGPLv2.1 or later.
*/
#include <stdio.h>
#ifndef FAST_FUNC
# define FAST_FUNC
#endif
/*
* Config file parser
*/
enum {
PARSE_COLLAPSE = 0x00010000, /* treat consecutive delimiters as one */
PARSE_TRIM = 0x00020000, /* trim leading and trailing delimiters */
/* TODO: COLLAPSE and TRIM seem to always go in pair */
PARSE_GREEDY = 0x00040000, /* last token takes entire remainder of the line */
PARSE_MIN_DIE = 0x00100000, /* die if < min tokens found */
/* keep a copy of current line */
PARSE_KEEP_COPY = 0x00200000 * 0, /*ENABLE_FEATURE_CROND_D, */
/* PARSE_ESCAPE = 0x00400000,*/ /* process escape sequences in tokens */
/* NORMAL is:
* remove leading and trailing delimiters and collapse
multiple delimiters into one
* warn and continue if less than mintokens delimiters found
* grab everything into last token
*/
PARSE_NORMAL = PARSE_COLLAPSE | PARSE_TRIM | PARSE_GREEDY,
};
typedef struct parser_t {
FILE *fp; /* input file */
char *data; /* pointer to data */
size_t data_len; /* offset into data of begin of line */
char *line; /* pointer to beginning of line */
size_t line_len; /* length of line */
smalluint allocated;
} parser_t;
parser_t* config_open(const char *filename) FAST_FUNC attribute_hidden;
int config_read(parser_t *parser, char ***tokens, unsigned flags, const char *delims) FAST_FUNC attribute_hidden;
#define config_read(parser, tokens, max, min, str, flags) \
config_read(parser, tokens, ((flags) | (((min) & 0xFF) << 8) | ((max) & 0xFF)), str)
void config_close(parser_t *parser) FAST_FUNC attribute_hidden;
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