/usr/share/libphutil/scripts/utils/utf8.php is in libphutil 0~git20160124-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | #!/usr/bin/env php
<?php
require_once dirname(dirname(__FILE__)).'/__init_script__.php';
$args = new PhutilArgumentParser($argv);
$args->setTagline(pht('utf8 charset test script'));
$args->setSynopsis(<<<EOHELP
**utf8.php** [-C n] __file__ ...
Show regions in files which are not valid UTF-8. With "-C n",
show __n__ lines of context instead of the default of 3. Use
"-" to read stdin.
**utf8.php** --test __file__ ...
Test for files which are not valid UTF-8. For example, this
will find all ".php" files under the working directory which
aren't valid UTF-8:
find . -type f -name '*.php' | xargs -n256 ./utf8.php -t
If the script exits with no output, all input files were
valid UTF-8.
EOHELP
);
$args->parseStandardArguments();
$args->parse(array(
array(
'name' => 'context',
'short' => 'C',
'param' => 'lines',
'default' => 3,
'help' => pht(
'Show __lines__ lines of context instead of the default 3.'),
'conflicts' => array(
'test' => pht('with %s, context is not shown.', '--test'),
),
),
array(
'name' => 'test',
'short' => 't',
'help' => pht('Print file names containing invalid UTF-8 to stdout.'),
),
array(
'name' => 'files',
'wildcard' => true,
),
));
$is_test = $args->getArg('test');
$context = $args->getArg('context');
$files = $args->getArg('files');
if (empty($files)) {
$args->printHelpAndExit();
}
if ($is_test) {
$err = test($files);
} else {
$err = show($files, $context);
}
exit($err);
function read($file) {
if ($file === '-') {
return file_get_contents('php://stdin');
} else {
return Filesystem::readFile($file);
}
}
function name($file) {
if ($file === '-') {
return 'stdin';
} else {
return $file;
}
}
function test(array $files) {
foreach ($files as $file) {
$data = read($file);
if (!phutil_is_utf8($data)) {
echo name($file)."\n";
}
}
return 0;
}
function show(array $files, $context) {
foreach ($files as $file) {
$data = read($file);
$ok = phutil_is_utf8($data);
if ($ok) {
echo pht('OKAY');
} else {
echo pht('FAIL');
}
echo ' '.name($file)."\n";
if (!$ok) {
$lines = explode("\n", $data);
$len = count($lines);
$map = array();
$bad = array();
foreach ($lines as $n => $line) {
if (phutil_is_utf8($line)) {
continue;
}
$bad[$n] = true;
for ($jj = max(0, $n - $context);
$jj < min($len, $n + 1 + $context);
$jj++) {
$map[$jj] = true;
}
}
$width = strlen(max(array_keys($map)));
// Set $last such that we print a newline on the first iteration through
// the loop.
$last = -2;
foreach ($map as $idx => $ignored) {
if ($idx !== $last + 1) {
echo "\n";
}
$last = $idx;
$line = $lines[$idx];
if (!empty($bad[$idx])) {
$line = show_problems($line);
}
printf(" % {$width}d %s\n", $idx + 1, $line);
}
echo "\n";
}
}
return 0;
}
function show_problems($line) {
$regex =
"/^(".
"[\x01-\x7F]+".
"|([\xC2-\xDF][\x80-\xBF])".
"|([\xE0-\xEF][\x80-\xBF][\x80-\xBF])".
"|([\xF0-\xF4][\x80-\xBF][\x80-\xBF][\x80-\xBF]))/";
$out = '';
while (strlen($line)) {
$match = null;
if (preg_match($regex, $line, $match)) {
$out .= $match[1];
$line = substr($line, strlen($match[1]));
} else {
$chr = sprintf('<0x%0X>', ord($line[0]));
$chr = phutil_console_format('##%s##', $chr);
$out .= $chr;
$line = substr($line, 1);
}
}
return $out;
}
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