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bump php-gettext to 1.0.10

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This commit is contained in:
Andrew Dolgov
2010-05-30 14:38:26 +04:00
parent 335565ac7d
commit 539d2c60af
4 changed files with 510 additions and 258 deletions
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177
lib/gettext/gettext.php Normal file → Executable file
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@@ -1,8 +1,8 @@
<?php
/*
Copyright (c) 2003 Danilo Segan <danilo@kvota.net>.
Copyright (c) 2003, 2009 Danilo Segan <danilo@kvota.net>.
Copyright (c) 2005 Nico Kaiser <nico@siriux.net>
This file is part of PHP-gettext.
PHP-gettext is free software; you can redistribute it and/or modify
@@ -20,13 +20,13 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* Provides a simple gettext replacement that works independently from
* the system's gettext abilities.
* It can read MO files and use them for translating strings.
* The files are passed to gettext_reader as a Stream (see streams.php)
*
*
* This version has the ability to cache all strings and translations to
* speed up the string lookup.
* While the cache is enabled by default, it can be switched off with the
@@ -36,7 +36,7 @@
class gettext_reader {
//public:
var $error = 0; // public variable that holds error code (0 if no error)
//private:
var $BYTEORDER = 0; // 0: low endian, 1: big endian
var $STREAM = NULL;
@@ -52,27 +52,33 @@ class gettext_reader {
/* Methods */
/**
* Reads a 32bit Integer from the Stream
*
*
* @access private
* @return Integer from the Stream
*/
function readint() {
if ($this->BYTEORDER == 0) {
// low endian
return array_shift(unpack('V', $this->STREAM->read(4)));
$input=unpack('V', $this->STREAM->read(4));
return array_shift($input);
} else {
// big endian
return array_shift(unpack('N', $this->STREAM->read(4)));
$input=unpack('N', $this->STREAM->read(4));
return array_shift($input);
}
}
function read($bytes) {
return $this->STREAM->read($bytes);
}
/**
* Reads an array of Integers from the Stream
*
*
* @param int count How many elements should be read
* @return Array of Integers
*/
@@ -85,10 +91,10 @@ class gettext_reader {
return unpack('N'.$count, $this->STREAM->read(4 * $count));
}
}
/**
* Constructor
*
*
* @param object Reader the StreamReader object
* @param boolean enable_cache Enable or disable caching of strings (default on)
*/
@@ -98,39 +104,37 @@ class gettext_reader {
$this->short_circuit = true;
return;
}
// Caching can be turned off
$this->enable_cache = $enable_cache;
// $MAGIC1 = (int)0x950412de; //bug in PHP 5
$MAGIC1 = (int) - 1794895138;
// $MAGIC2 = (int)0xde120495; //bug
$MAGIC2 = (int) - 569244523;
$MAGIC1 = "\x95\x04\x12\xde";
$MAGIC2 = "\xde\x12\x04\x95";
$this->STREAM = $Reader;
$magic = $this->readint();
$magic = $this->read(4);
if ($magic == $MAGIC1) {
$this->BYTEORDER = 0;
} elseif ($magic == $MAGIC2) {
$this->BYTEORDER = 1;
} elseif ($magic == $MAGIC2) {
$this->BYTEORDER = 0;
} else {
$this->error = 1; // not MO file
return false;
}
// FIXME: Do we care about revision? We should.
$revision = $this->readint();
$this->total = $this->readint();
$this->originals = $this->readint();
$this->translations = $this->readint();
}
/**
* Loads the translation tables from the MO file into the cache
* If caching is enabled, also loads all strings into a cache
* to speed up translation lookups
*
*
* @access private
*/
function load_tables() {
@@ -138,13 +142,17 @@ class gettext_reader {
is_array($this->table_originals) &&
is_array($this->table_translations))
return;
/* get original and translations tables */
$this->STREAM->seekto($this->originals);
$this->table_originals = $this->readintarray($this->total * 2);
$this->STREAM->seekto($this->translations);
$this->table_translations = $this->readintarray($this->total * 2);
if (!is_array($this->table_originals)) {
$this->STREAM->seekto($this->originals);
$this->table_originals = $this->readintarray($this->total * 2);
}
if (!is_array($this->table_translations)) {
$this->STREAM->seekto($this->translations);
$this->table_translations = $this->readintarray($this->total * 2);
}
if ($this->enable_cache) {
$this->cache_translations = array ();
/* read all strings in the cache */
@@ -157,10 +165,10 @@ class gettext_reader {
}
}
}
/**
* Returns a string from the "originals" table
*
*
* @access private
* @param int num Offset number of original string
* @return string Requested string if found, otherwise ''
@@ -174,10 +182,10 @@ class gettext_reader {
$data = $this->STREAM->read($length);
return (string)$data;
}
/**
* Returns a string from the "translations" table
*
*
* @access private
* @param int num Offset number of original string
* @return string Requested string if found, otherwise ''
@@ -191,10 +199,10 @@ class gettext_reader {
$data = $this->STREAM->read($length);
return (string)$data;
}
/**
* Binary search for string
*
*
* @access private
* @param string string
* @param int start (internally used in recursive function)
@@ -232,10 +240,10 @@ class gettext_reader {
return $this->find_string($string, $half, $end);
}
}
/**
* Translates a string
*
*
* @access public
* @param string string to be translated
* @return string translated string (or original, if not found)
@@ -243,8 +251,8 @@ class gettext_reader {
function translate($string) {
if ($this->short_circuit)
return $string;
$this->load_tables();
$this->load_tables();
if ($this->enable_cache) {
// Caching enabled, get translated string from cache
if (array_key_exists($string, $this->cache_translations))
@@ -261,17 +269,66 @@ class gettext_reader {
}
}
/**
* Sanitize plural form expression for use in PHP eval call.
*
* @access private
* @return string sanitized plural form expression
*/
function sanitize_plural_expression($expr) {
// Get rid of disallowed characters.
$expr = preg_replace('@[^a-zA-Z0-9_:;\(\)\?\|\&=!<>+*/\%-]@', '', $expr);
// Add parenthesis for tertiary '?' operator.
$expr .= ';';
$res = '';
$p = 0;
for ($i = 0; $i < strlen($expr); $i++) {
$ch = $expr[$i];
switch ($ch) {
case '?':
$res .= ' ? (';
$p++;
break;
case ':':
$res .= ') : (';
break;
case ';':
$res .= str_repeat( ')', $p) . ';';
$p = 0;
break;
default:
$res .= $ch;
}
}
return $res;
}
/**
* Parse full PO header and extract only plural forms line.
*
* @access private
* @return string verbatim plural form header field
*/
function extract_plural_forms_header_from_po_header($header) {
if (preg_match("/(^|\n)plural-forms: ([^\n]*)\n/i", $header, $regs))
$expr = $regs[2];
else
$expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
return $expr;
}
/**
* Get possible plural forms from MO header
*
*
* @access private
* @return string plural form header
*/
function get_plural_forms() {
// lets assume message number 0 is header
// lets assume message number 0 is header
// this is true, right?
$this->load_tables();
// cache header field for plural forms
if (! is_string($this->pluralheader)) {
if ($this->enable_cache) {
@@ -279,18 +336,15 @@ class gettext_reader {
} else {
$header = $this->get_translation_string(0);
}
if (eregi("plural-forms: ([^\n]*)\n", $header, $regs))
$expr = $regs[1];
else
$expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
$this->pluralheader = $expr;
$expr = $this->extract_plural_forms_header_from_po_header($header);
$this->pluralheader = $this->sanitize_plural_expression($expr);
}
return $this->pluralheader;
}
/**
* Detects which plural form to take
*
*
* @access private
* @param n count
* @return int array index of the right plural form
@@ -300,7 +354,7 @@ class gettext_reader {
$string = str_replace('nplurals',"\$total",$string);
$string = str_replace("n",$n,$string);
$string = str_replace('plural',"\$plural",$string);
$total = 0;
$plural = 0;
@@ -311,7 +365,7 @@ class gettext_reader {
/**
* Plural version of gettext
*
*
* @access public
* @param string single
* @param string plural
@@ -327,12 +381,12 @@ class gettext_reader {
}
// find out the appropriate form
$select = $this->select_string($number);
$select = $this->select_string($number);
// this should contains all strings separated by NULLs
$key = $single.chr(0).$plural;
$key = $single . chr(0) . $plural;
if ($this->enable_cache) {
if (! array_key_exists($key, $this->cache_translations)) {
return ($number != 1) ? $plural : $single;
@@ -353,6 +407,15 @@ class gettext_reader {
}
}
function pgettext($context, $msgid) {
$key = $context . chr(4) . $msgid;
return $this->translate($key);
}
function npgettext($context, $singular, $plural, $number) {
$singular = $context . chr(4) . $singular;
return $this->ngettext($singular, $plural, $number);
}
}
?>