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libphutil/src/console/PhutilConsoleFormatter.php
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PhutilConsoleFormatter.php
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<?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.
*/
/**
* @group console
*/
final class PhutilConsoleFormatter {
private static $colorCodes = array(
'black' => 0,
'red' => 1,
'green' => 2,
'yellow' => 3,
'blue' => 4,
'magenta' => 5,
'cyan' => 6,
'white' => 7,
'default' => 9,
);
private static $disableANSI;
public static function disableANSI($disable) {
self::$disableANSI = $disable;
}
public static function formatString($format /* ... */) {
$colors = implode('|', array_keys(self::$colorCodes));
if (self::$disableANSI === null) {
if (phutil_is_windows()) {
self::$disableANSI = true;
} else if (function_exists('posix_isatty') && !posix_isatty(STDOUT)) {
self::$disableANSI = true;
} else {
self::$disableANSI = false;
}
}
// Sequence should be preceded by start-of-string or non-backslash
// escaping.
$bold_re = '/(?<=^|[^\\\\])\*\*(.*)\*\*/sU';
$underline_re = '/(?<=^|[^\\\\])__(.*)__/sU';
$invert_re = '/(?<=^|[^\\\\])##(.*)##/sU';
if (self::$disableANSI) {
$format = preg_replace($bold_re, '\1', $format);
$format = preg_replace($underline_re, '\1', $format);
$format = preg_replace($invert_re, '\1', $format);
$format = preg_replace(
'@<(fg|bg):('.$colors.')>(.*)</\1>@sU',
'\3',
$format);
} else {
$esc = chr(27);
$bold = $esc.'[1m'.'\\1'.$esc.'[m';
$underline = $esc.'[4m'.'\\1'.$esc.'[m';
$invert = $esc.'[7m'.'\\1'.$esc.'[m';
$format = preg_replace($bold_re, $bold, $format);
$format = preg_replace($underline_re, $underline, $format);
$format = preg_replace($invert_re, $invert, $format);
$format = preg_replace_callback(
'@<(fg|bg):('.$colors.')>(.*)</\1>@sU',
array('PhutilConsoleFormatter', 'replaceColorCode'),
$format);
}
// Remove backslash escaping
$format = preg_replace('/\\\\(\*\*.*\*\*|__.*__|##.*##)/sU', '\1', $format);
$args = func_get_args();
$args[0] = $format;
return call_user_func_array('sprintf', $args);
}
public static function replaceColorCode($matches) {
$codes = self::$colorCodes;
$offset = 30 + $codes[$matches[2]];
$default = 39;
if ($matches[1] == 'bg') {
$offset += 10;
$default += 10;
}
return chr(27).'['.$offset.'m'.$matches[3].chr(27).'['.$default.'m';
}
}
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