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php-src/main/getopt.c at master · EndlessCoding/php-src · GitHub
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include
<stdio.h>
#include
<string.h>
#include
<assert.h>
#include
<stdlib.h>
#include
"php_getopt.h"
#define
OPTERRCOLON
(1)
#define
OPTERRNF
(2)
#define
OPTERRARG
(3)
static
int
php_opt_error
(
int
argc
,
char
*
const
*
argv
,
int
oint
,
int
optchr
,
int
err
,
int
show_err
)
/* {{{ */
{
if
(
show_err
)
{
fprintf
(
stderr
,
"Error in argument %d, char %d: "
,
oint
,
optchr
+
1
);
switch
(
err
)
{
case
OPTERRCOLON
:
fprintf
(
stderr
,
": in flags\n"
);
break
;
case
OPTERRNF
:
fprintf
(
stderr
,
"option not found %c\n"
,
argv
[
oint
][
optchr
]);
break
;
case
OPTERRARG
:
fprintf
(
stderr
,
"no argument for option %c\n"
,
argv
[
oint
][
optchr
]);
break
;
default
:
fprintf
(
stderr
,
"unknown\n"
);
break
;
}
}
return
(
'?'
);
}
/* }}} */
PHPAPI
int
php_optidx
=
-1
;
PHPAPI
int
php_getopt
(
int
argc
,
char
*
const
*
argv
,
const
opt_struct
opts
[],
char
*
*
optarg
,
int
*
optind
,
int
show_err
,
int
arg_start
)
/* {{{ */
{
static
int
optchr
=
0
;
static
int
dash
=
0
;
/* have already seen the - */
php_optidx
=
-1
;
if
(
*
optind
>=
argc
) {
return
(
EOF
);
}
if
(!
dash
) {
if
((
argv
[
*
optind
][
0
]
!=
'-'
)) {
return
(
EOF
);
}
else
{
if
(!
argv
[
*
optind
][
1
])
{
/*
* use to specify stdin. Need to let pgm process this and
* the following args
*/
return
(
EOF
);
}
}
}
if
((
argv
[
*
optind
][
0
]
==
'-'
)
&&
(
argv
[
*
optind
][
1
]
==
'-'
)) {
char
*
pos
;
int
arg_end
=
strlen
(
argv
[
*
optind
])
-
1
;
/* '--' indicates end of args if not followed by a known long option name */
if
(
argv
[
*
optind
][
2
]
==
'\0'
) {
(
*
optind
)
++
;
return
(
EOF
);
}
arg_start
=
2
;
/* Check for <arg>=<val> */
if
((
pos
=
php_memnstr
(
&
argv
[
*
optind
][
arg_start
],
"="
,
1
,
argv
[
*
optind
]
+
arg_end
))
!=
NULL
) {
arg_end
=
pos
-
&
argv
[
*
optind
][
arg_start
];
arg_start
++
;
}
else
{
arg_end
--
;
}
while
(
1
) {
php_optidx
++
;
if
(
opts
[
php_optidx
].
opt_char
==
'-'
) {
(
*
optind
)
++
;
return
(
php_opt_error
(
argc
,
argv
,
*
optind
-
1
,
optchr
,
OPTERRARG
,
show_err
));
}
else
if
(
opts
[
php_optidx
].
opt_name
&&
!
strncmp
(
&
argv
[
*
optind
][
2
],
opts
[
php_optidx
].
opt_name
,
arg_end
)
&&
arg_end
==
strlen
(
opts
[
php_optidx
].
opt_name
)) {
break
;
}
}
optchr
=
0
;
dash
=
0
;
arg_start
+=
strlen
(
opts
[
php_optidx
].
opt_name
);
}
else
{
if
(!
dash
) {
dash
=
1
;
optchr
=
1
;
}
/* Check if the guy tries to do a -: kind of flag */
if
(
argv
[
*
optind
][
optchr
]
==
':'
) {
dash
=
0
;
(
*
optind
)
++
;
return
(
php_opt_error
(
argc
,
argv
,
*
optind
-
1
,
optchr
,
OPTERRCOLON
,
show_err
));
}
arg_start
=
1
+
optchr
;
}
if
(
php_optidx
<
0
) {
while
(
1
) {
php_optidx
++
;
if
(
opts
[
php_optidx
].
opt_char
==
'-'
) {
int
errind
=
*
optind
;
int
errchr
=
optchr
;
if
(!
argv
[
*
optind
][
optchr
+
1
]) {
dash
=
0
;
(
*
optind
)
++
;
}
else
{
optchr
++
;
arg_start
++
;
}
return
(
php_opt_error
(
argc
,
argv
,
errind
,
errchr
,
OPTERRNF
,
show_err
));
}
else
if
(
argv
[
*
optind
][
optchr
]
==
opts
[
php_optidx
].
opt_char
) {
break
;
}
}
}
if
(
opts
[
php_optidx
].
need_param
) {
/* Check for cases where the value of the argument
is in the form -<arg> <val>, -<arg>=<varl> or -<arg><val> */
dash
=
0
;
if
(!
argv
[
*
optind
][
arg_start
]) {
(
*
optind
)
++
;
if
(
*
optind
==
argc
) {
/* Was the value required or is it optional? */
if
(
opts
[
php_optidx
].
need_param
==
1
) {
return
(
php_opt_error
(
argc
,
argv
,
*
optind
-
1
,
optchr
,
OPTERRARG
,
show_err
));
}
/* Optional value is not supported with -<arg> <val> style */
}
else
if
(
opts
[
php_optidx
].
need_param
==
1
) {
*
optarg
=
argv
[(
*
optind
)
++
];
}
}
else
if
(
argv
[
*
optind
][
arg_start
]
==
'='
) {
arg_start
++
;
*
optarg
=
&
argv
[
*
optind
][
arg_start
];
(
*
optind
)
++
;
}
else
{
*
optarg
=
&
argv
[
*
optind
][
arg_start
];
(
*
optind
)
++
;
}
return
opts
[
php_optidx
].
opt_char
;
}
else
{
/* multiple options specified as one (exclude long opts) */
if
(
arg_start
>=
2
&&
!((
argv
[
*
optind
][
0
]
==
'-'
)
&&
(
argv
[
*
optind
][
1
]
==
'-'
))) {
if
(!
argv
[
*
optind
][
optchr
+
1
])
{
dash
=
0
;
(
*
optind
)
++
;
}
else
{
optchr
++
;
}
}
else
{
(
*
optind
)
++
;
}
return
opts
[
php_optidx
].
opt_char
;
}
assert
(
0
);
return
(
0
);
/* never reached */
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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