Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F82324218
PhutilLanguageGuesser.php
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Tue, Sep 10, 18:46
Size
1 KB
Mime Type
text/x-php
Expires
Thu, Sep 12, 18:46 (2 d)
Engine
blob
Format
Raw Data
Handle
20683381
Attached To
rPHU libphutil
PhutilLanguageGuesser.php
View Options
<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Very simple class to guess the languages of source files which we failed to
* determine by examining file name/extension rules.
*
* @group util
*/
final
class
PhutilLanguageGuesser
{
/**
* Guess which computer programming language a file is written in.
*
* @param string Source text of the file.
* @return mixed Language string, or null if unable to guess.
*/
public
static
function
guessLanguage
(
$source
)
{
static
$patterns
=
array
(
// Capture "#!/usr/bin/env php" sorts of things.
'@^#!.*bin/env
\s
+(
\S
+)@'
,
// Capture "#!/usr/bin/php" sorts of things.
'@^#!.*bin/(
\S
+)@'
,
// Capture initial "<?php", which means PHP.
'@^
\s
*<[?](php)@'
,
// Capture emacs "mode" header.
'@^.*-[*]-.*mode
\s
*:
\s
*(
\S
+).*-[*]-.*$@m'
,
// Capture a magic word.
'@(rainbow)@'
,
);
foreach
(
$patterns
as
$pattern
)
{
$matches
=
null
;
if
(
preg_match
(
$pattern
,
$source
,
$matches
))
{
return
$matches
[
1
];
}
}
return
null
;
}
}
Event Timeline
Log In to Comment