96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
|
|
* parser.c
|
|
* rfc822 message parser
|
|
*
|
|
* Copyright (c) 2018 pkgconf authors (see AUTHORS).
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* This software is provided 'as is' and without any warranty, express or
|
|
* implied. In no event shall the authors be liable for any damages arising
|
|
* from the use of this software.
|
|
*/
|
|
|
|
#include <libpkgconf/config.h>
|
|
#include <libpkgconf/stdinc.h>
|
|
#include <libpkgconf/libpkgconf.h>
|
|
|
|
/*
|
|
* !doc
|
|
*
|
|
* .. c:function:: pkgconf_pkg_t *pkgconf_pkg_new_from_file(const pkgconf_client_t *client, const char *filename, FILE *f)
|
|
*
|
|
* Parse a .pc file into a pkgconf_pkg_t object structure.
|
|
*
|
|
* :param pkgconf_client_t* client: The pkgconf client object to use for dependency resolution.
|
|
* :param char* filename: The filename of the package file (including full path).
|
|
* :param FILE* f: The file object to read from.
|
|
* :returns: A ``pkgconf_pkg_t`` object which contains the package data.
|
|
* :rtype: pkgconf_pkg_t *
|
|
*/
|
|
void
|
|
pkgconf_parser_parse(FILE *f, void *data, const pkgconf_parser_operand_func_t *ops, const pkgconf_parser_warn_func_t warnfunc, const char *filename)
|
|
{
|
|
char readbuf[PKGCONF_BUFSIZE];
|
|
size_t lineno = 0;
|
|
|
|
while (pkgconf_fgetline(readbuf, PKGCONF_BUFSIZE, f) != NULL)
|
|
{
|
|
char op, *p, *key, *value;
|
|
bool warned_key_whitespace = false, warned_value_whitespace = false;
|
|
|
|
lineno++;
|
|
|
|
p = readbuf;
|
|
while (*p && (isalpha((unsigned int)*p) || isdigit((unsigned int)*p) || *p == '_' || *p == '.'))
|
|
p++;
|
|
|
|
key = readbuf;
|
|
if (!isalpha((unsigned int)*key) && !isdigit((unsigned int)*p))
|
|
continue;
|
|
|
|
while (*p && isspace((unsigned int)*p))
|
|
{
|
|
if (!warned_key_whitespace)
|
|
{
|
|
warnfunc(data, "%s:" SIZE_FMT_SPECIFIER ": warning: whitespace encountered while parsing key section\n",
|
|
filename, lineno);
|
|
warned_key_whitespace = true;
|
|
}
|
|
|
|
/* set to null to avoid trailing spaces in key */
|
|
*p = '\0';
|
|
p++;
|
|
}
|
|
|
|
op = *p;
|
|
*p = '\0';
|
|
p++;
|
|
|
|
while (*p && isspace((unsigned int)*p))
|
|
p++;
|
|
|
|
value = p;
|
|
p = value + (strlen(value) - 1);
|
|
while (*p && isspace((unsigned int) *p) && p > value)
|
|
{
|
|
if (!warned_value_whitespace && op == '=')
|
|
{
|
|
warnfunc(data, "%s:" SIZE_FMT_SPECIFIER ": warning: trailing whitespace encountered while parsing value section\n",
|
|
filename, lineno);
|
|
warned_value_whitespace = true;
|
|
}
|
|
|
|
*p = '\0';
|
|
p--;
|
|
}
|
|
|
|
if (ops[(unsigned char) op])
|
|
ops[(unsigned char) op](data, lineno, key, value);
|
|
}
|
|
|
|
fclose(f);
|
|
}
|