<?php
+/**
+ * Methods to play with strings.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
/**
* A collection of static methods to play with strings.
*/
* Compared to delimiterReplace(), this implementation is fast but memory-
* hungry and inflexible. The memory requirements are such that I don't
* recommend using it on anything but guaranteed small chunks of text.
+ *
+ * @param $startDelim
+ * @param $endDelim
+ * @param $replace
+ * @param $subject
+ *
+ * @return string
*/
static function hungryDelimiterReplace( $startDelim, $endDelim, $replace, $subject ) {
$segments = explode( $startDelim, $subject );
* This implementation is slower than hungryDelimiterReplace but uses far less
* memory. The delimiters are literal strings, not regular expressions.
*
+ * If the start delimiter ends with an initial substring of the end delimiter,
+ * e.g. in the case of C-style comments, the behaviour differs from the model
+ * regex. In this implementation, the end must share no characters with the
+ * start, so e.g. /*\/ is not considered to be both the start and end of a
+ * comment. /*\/xy/*\/ is considered to be a single comment with contents /xy/.
+ *
* @param $startDelim String: start delimiter
* @param $endDelim String: end delimiter
* @param $callback Callback: function to call on each match
* @param $subject String
* @param $flags String: regular expression flags
+ * @throws MWException
+ * @return string
*/
- # If the start delimiter ends with an initial substring of the end delimiter,
- # e.g. in the case of C-style comments, the behaviour differs from the model
- # regex. In this implementation, the end must share no characters with the
- # start, so e.g. /*/ is not considered to be both the start and end of a
- # comment. /*/xy/*/ is considered to be a single comment with contents /xy/.
static function delimiterReplaceCallback( $startDelim, $endDelim, $callback, $subject, $flags = '' ) {
$inputPos = 0;
$outputPos = 0;
}
if ( $tokenType == 'start' ) {
- $inputPos = $tokenOffset + $tokenLength;
# Only move the start position if we haven't already found a start
# This means that START START END matches outer pair
if ( !$foundStart ) {
# Found start
+ $inputPos = $tokenOffset + $tokenLength;
# Write out the non-matching section
$output .= substr( $subject, $outputPos, $tokenOffset - $outputPos );
$outputPos = $tokenOffset;
$contentPos = $inputPos;
$foundStart = true;
+ } else {
+ # Move the input position past the *first character* of START,
+ # to protect against missing END when it overlaps with START
+ $inputPos = $tokenOffset + 1;
}
} elseif ( $tokenType == 'end' ) {
if ( $foundStart ) {
return $output;
}
- /*
+ /**
* Perform an operation equivalent to
*
* preg_replace( "!$startDelim(.*)$endDelim!$flags", $replace, $subject )
* @param $replace String: replacement string. May contain $1, which will be
* replaced by the text between the delimiters
* @param $subject String to search
+ * @param $flags String: regular expression flags
* @return String: The string with the matches replaced
*/
static function delimiterReplace( $startDelim, $endDelim, $replace, $subject, $flags = '' ) {
/**
* Workalike for explode() with limited memory usage.
* Returns an Iterator
+ * @param $separator
+ * @param $subject
+ * @return ArrayIterator|\ExplodeIterator
*/
static function explode( $separator, $subject ) {
if ( substr_count( $subject, $separator ) > 1000 ) {
* StringUtils::delimiterReplaceCallback()
*/
class Replacer {
+
+ /**
+ * @return array
+ */
function cb() {
return array( &$this, 'replace' );
}
*/
class RegexlikeReplacer extends Replacer {
var $r;
+
+ /**
+ * @param $r string
+ */
function __construct( $r ) {
$this->r = $r;
}
+ /**
+ * @param $matches array
+ * @return string
+ */
function replace( $matches ) {
$pairs = array();
foreach ( $matches as $i => $match ) {
* Class to perform secondary replacement within each replacement string
*/
class DoubleReplacer extends Replacer {
+
+ /**
+ * @param $from
+ * @param $to
+ * @param $index int
+ */
function __construct( $from, $to, $index = 0 ) {
$this->from = $from;
$this->to = $to;
$this->index = $index;
}
+ /**
+ * @param $matches array
+ * @return mixed
+ */
function replace( $matches ) {
return str_replace( $this->from, $this->to, $matches[$this->index] );
}
class HashtableReplacer extends Replacer {
var $table, $index;
+ /**
+ * @param $table
+ * @param $index int
+ */
function __construct( $table, $index = 0 ) {
$this->table = $table;
$this->index = $index;
}
+ /**
+ * @param $matches array
+ * @return mixed
+ */
function replace( $matches ) {
return $this->table[$matches[$this->index]];
}
/**
* Create an object with the specified replacement array
* The array should have the same form as the replacement array for strtr()
+ * @param array $data
*/
function __construct( $data = array() ) {
$this->data = $data;
}
+ /**
+ * @return array
+ */
function __sleep() {
return array( 'data' );
}
$this->fss = false;
}
+ /**
+ * @return array|bool
+ */
function getArray() {
return $this->data;
}
/**
* Set an element of the replacement array
+ * @param $from string
+ * @param $to stromg
*/
function setPair( $from, $to ) {
$this->data[$from] = $to;
$this->fss = false;
}
+ /**
+ * @param $data array
+ */
function mergeArray( $data ) {
$this->data = array_merge( $this->data, $data );
$this->fss = false;
}
+ /**
+ * @param $other
+ */
function merge( $other ) {
$this->data = array_merge( $this->data, $other->data );
$this->fss = false;
}
+ /**
+ * @param $from string
+ */
function removePair( $from ) {
unset($this->data[$from]);
$this->fss = false;
}
+ /**
+ * @param $data array
+ */
function removeArray( $data ) {
- foreach( $data as $from => $to )
+ foreach( $data as $from => $to ) {
$this->removePair( $from );
+ }
$this->fss = false;
}
+ /**
+ * @param $subject string
+ * @return string
+ */
function replace( $subject ) {
if ( function_exists( 'fss_prep_replace' ) ) {
wfProfileIn( __METHOD__.'-fss' );
// The current token
var $current;
- /**
+ /**
* Construct a DelimIterator
+ * @param $delim string
+ * @param $s string
*/
function __construct( $delim, $s ) {
$this->subject = $s;
$this->refreshCurrent();
}
-
function refreshCurrent() {
if ( $this->curPos === false ) {
$this->current = false;
return $this->curPos;
}
+ /**
+ * @return string
+ */
function next() {
if ( $this->endPos === false ) {
$this->curPos = false;
return $this->current;
}
+ /**
+ * @return bool
+ */
function valid() {
return $this->curPos !== false;
}
}
-
dépôts / lhc / web / wiklou.git / blobdiff