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[!]: add warnings for missing polyfills
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@voku
voku committed Oct 9, 2016
1 parent 75d6932 commit 0371b1e
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Showing 4 changed files with 221 additions and 101 deletions.
183 changes: 136 additions & 47 deletions src/voku/helper/UTF8.php
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Original file line number Diff line number Diff line change
Expand Up @@ -1280,6 +1280,16 @@ public static function encode($encoding, $str, $force = true)
return self::to_iso8859($str);
}

if (
$encoding !== 'UTF-8'
&&
$encoding !== 'WINDOWS-1252'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::encode() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

$strEncoded = \mb_convert_encoding(
$str,
$encoding,
Expand Down Expand Up @@ -4727,10 +4737,14 @@ public static function stristr($haystack, $needle, $before_needle = false, $enco
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::stristr() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_stristr($haystack, $needle, $before_needle, $encoding);
}

Expand Down Expand Up @@ -4792,10 +4806,14 @@ public static function strlen($str, $encoding = 'UTF-8', $cleanUtf8 = false)
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::strlen() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_strlen($str, $encoding);
}

Expand All @@ -4813,6 +4831,7 @@ public static function strlen($str, $encoding = 'UTF-8', $cleanUtf8 = false)
}
}

// fallback via vanilla php
preg_match_all('/./us', $str, $parts);
$returnTmp = count($parts[0]);
if ($returnTmp !== 0) {
Expand Down Expand Up @@ -4980,14 +4999,22 @@ public static function strpos($haystack, $needle, $offset = 0, $encoding = 'UTF-
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::strpos() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_strpos($haystack, $needle, $offset, $encoding);
}

if (self::$support['iconv'] === true) {
if (
$offset >= 0 // iconv_strpos() can't handle negative offset
&&
self::$support['iconv'] === true
) {
// ignore invalid negative offset to keep compatibility
// with php < 5.5.35, < 5.6.21, < 7.0.6
return \iconv_strpos($haystack, $needle, $offset > 0 ? $offset : 0, $encoding);
Expand All @@ -5013,7 +5040,13 @@ public static function strpos($haystack, $needle, $offset = 0, $encoding = 'UTF-
return false;
}

return $offset + self::strlen(substr($haystack, 0, $pos));
$returnTmp = $offset + self::strlen(substr($haystack, 0, $pos));
if ($returnTmp !== false) {
return $returnTmp;
}

// fallback to "mb_"-function via polyfill
return \mb_strpos($haystack, $needle, $offset);
}

/**
Expand Down Expand Up @@ -5052,6 +5085,7 @@ public static function strrchr($haystack, $needle, $before_needle = false, $enco
$haystack = self::clean($haystack);
}

// fallback to "mb_"-function via polyfill
return \mb_strrchr($haystack, $needle, $before_needle, $encoding);
}

Expand Down Expand Up @@ -5167,10 +5201,14 @@ public static function strripos($haystack, $needle, $offset = 0, $encoding = 'UT
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::strripos() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_strripos($haystack, $needle, $offset, $encoding);
}

Expand All @@ -5181,6 +5219,8 @@ public static function strripos($haystack, $needle, $offset = 0, $encoding = 'UT
}
}

// fallback via vanilla php

return self::strrpos(self::strtolower($haystack, $encoding), self::strtolower($needle, $encoding), $offset, $encoding, $cleanUtf8);
}

Expand Down Expand Up @@ -5242,11 +5282,18 @@ public static function strrpos($haystack, $needle, $offset = null, $encoding = '
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
return \mb_strrpos($haystack, $needle, $offset, $encoding);
trigger_error('UTF8::strrpos() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
$returnTmp = \mb_strrpos($haystack, $needle, $offset, $encoding);
if ($returnTmp !== false) {
return $returnTmp;
}
}

if (self::$support['intl'] === true) {
Expand Down Expand Up @@ -5341,15 +5388,25 @@ public static function strstr($haystack, $needle, $before_needle = false, $encod
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
return \mb_strstr($haystack, $needle, $before_needle, $encoding);
trigger_error('UTF8::strstr() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
$returnTmp = \mb_strstr($haystack, $needle, $before_needle, $encoding);
if ($returnTmp !== false) {
return $returnTmp;
}
}

if (self::$support['intl'] === true) {
return \grapheme_strstr($haystack, $needle, $before_needle);
$returnTmp = \grapheme_strstr($haystack, $needle, $before_needle);
if ($returnTmp !== false) {
return $returnTmp;
}
}

preg_match('/^(.*?)' . preg_quote($needle, '/') . '/us', $haystack, $match);
Expand Down Expand Up @@ -5551,6 +5608,7 @@ public static function strwidth($str, $encoding = 'UTF-8', $cleanUtf8 = false)
$str = self::clean($str);
}

// fallback to "mb_"-function via polyfill
return \mb_strwidth($str, $encoding);
}

Expand Down Expand Up @@ -5613,15 +5671,23 @@ public static function substr($str, $start = 0, $length = null, $encoding = 'UTF
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::substr() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_substr($str, $start, $length, $encoding);
}

if (self::$support['iconv'] === true) {
return \iconv_substr($str, $start, $length, $encoding);
if (
$length >= 0 // "iconv_substr()" can't handle negative length
&&
self::$support['iconv'] === true
) {
return \iconv_substr($str, $start, $length);
}

if (self::$support['intl'] === true) {
Expand Down Expand Up @@ -5714,10 +5780,14 @@ public static function substr_count($haystack, $needle, $offset = 0, $length = n
}

if (
$encoding !== 'UTF-8' // INFO: use "mb_"-function (with polyfill) also if we need another encoding
||
self::$support['mbstring'] === true
$encoding !== 'UTF-8'
&&
self::$support['mbstring'] === false
) {
trigger_error('UTF8::substr_count() without mbstring cannot handle "' . $encoding . '" encoding', E_USER_WARNING);
}

if (self::$support['mbstring'] === true) {
return \mb_substr_count($haystack, $needle, $encoding);
}

Expand All @@ -5736,6 +5806,7 @@ public static function substr_count($haystack, $needle, $offset = 0, $length = n
*/
public static function substr_ileft($haystack, $needle)
{
// init
$haystack = (string)$haystack;
$needle = (string)$needle;

Expand Down Expand Up @@ -5764,6 +5835,7 @@ public static function substr_ileft($haystack, $needle)
*/
public static function substr_iright($haystack, $needle)
{
// init
$haystack = (string)$haystack;
$needle = (string)$needle;

Expand Down Expand Up @@ -5792,6 +5864,7 @@ public static function substr_iright($haystack, $needle)
*/
public static function substr_left($haystack, $needle)
{
// init
$haystack = (string)$haystack;
$needle = (string)$needle;

Expand All @@ -5815,12 +5888,24 @@ public static function substr_left($haystack, $needle)
*
* source: https://gist.github.com/stemar/8287074
*
* @param string|string[] $str <p>The input string or an array of stings.</p>
* @param string|string[] $replacement <p>The replacement string or an array of stings.</p>
* @param int|int[] $start
* @param int|int[]|void $length [optional]
*
* @return string|string[]
* @param string|string[] $str <p>The input string or an array of stings.</p>
* @param string|string[] $replacement <p>The replacement string or an array of stings.</p>
* @param int|int[] $start <p>
* If start is positive, the replacing will begin at the start'th offset
* into string.
* <br /><br />
* If start is negative, the replacing will begin at the start'th character
* from the end of string.
* </p>
* @param int|int[]|void $length [optional] <p>If given and is positive, it represents the length of the
* portion of string which is to be replaced. If it is negative, it
* represents the number of characters from the end of string at which to
* stop replacing. If it is not given, then it will default to strlen(
* string ); i.e. end the replacing at the end of string. Of course, if
* length is zero then this function will have the effect of inserting
* replacement into string at the given start offset.</p>
*
* @return string|string[] <p>The result string is returned. If string is an array then array is returned.</p>
*/
public static function substr_replace($str, $replacement, $start, $length = null)
{
Expand Down Expand Up @@ -5864,7 +5949,9 @@ public static function substr_replace($str, $replacement, $start, $length = null

// Recursive call
return array_map(array(__CLASS__, 'substr_replace'), $str, $replacement, $start, $length);

} else {

if (is_array($replacement)) {
if (count($replacement) > 0) {
$replacement = $replacement[0];
Expand All @@ -5874,11 +5961,19 @@ public static function substr_replace($str, $replacement, $start, $length = null
}
}

preg_match_all('/./us', (string)$str, $smatches);
preg_match_all('/./us', (string)$replacement, $rmatches);
// init
$str = (string)$str;
$replacement = (string)$replacement;

if (!isset($str[0])) {
return $replacement;
}

preg_match_all('/./us', $str, $smatches);
preg_match_all('/./us', $replacement, $rmatches);

if ($length === null) {
$length = (int)\mb_strlen($str);
$length = (int)self::strlen($str);
}

array_splice($smatches[0], $start, $length, $rmatches[0]);
Expand Down Expand Up @@ -6308,13 +6403,7 @@ function ($match) {
);

// decode UTF-8 codepoints
$buf = preg_replace_callback(
'/&#\d{2,6};/',
function ($match) {
return \mb_convert_encoding($match[0], 'UTF-8', 'HTML-ENTITIES');
},
$buf
);
$buf = self::html_entity_decode($buf, ENT_QUOTES);

return $buf;
}
Expand Down

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