gnucash-htdocs beta: Revert "Use php's builtin gettext."

John Ralls jralls at code.gnucash.org
Wed Aug 11 18:14:21 EDT 2021


Updated	 via  https://github.com/Gnucash/gnucash-htdocs/commit/1eca1bd8 (commit)
	from  https://github.com/Gnucash/gnucash-htdocs/commit/50b1e864 (commit)



commit 1eca1bd80c3e274393b1f1feeab42ee26766fa72
Author: John Ralls <jralls at ceridwen.us>
Date:   Wed Aug 11 15:13:25 2021 -0700

    Revert "Use php's builtin gettext."
    
    This reverts commit 50b1e864c1d2b2f5be3321055b0ae417067f4408.
    Doesn't work on www.gnucash.org, gettext not installed?

diff --git a/accept-to-gettext.inc b/accept-to-gettext.inc
new file mode 100644
index 0000000..6f366d0
--- /dev/null
+++ b/accept-to-gettext.inc
@@ -0,0 +1,184 @@
+<?php
+/*
+ * accept-to-gettext.inc -- convert information in 'Accept-*' headers to
+ * gettext language identifiers.
+ * Copyright (c) 2003, Wouter Verhelst <wouter at debian.org>
+ * 
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Usage:
+ *
+ *  $locale=al2gt(<array of supported languages/charsets in gettext syntax>,
+ *                <MIME type of document>);
+ *  setlocale('LC_ALL', $locale); // or 'LC_MESSAGES', or whatever...
+ *
+ * Example:
+ *
+ *  $langs=array('nl_BE.ISO-8859-15','nl_BE.UTF-8','en_US.UTF-8','en_GB.UTF-8');
+ *  $locale=al2gt($langs, 'text/html');
+ *  setlocale('LC_ALL', $locale);
+ *
+ * Note that this will send out header information (to be
+ * RFC2616-compliant), so it must be called before anything is sent to
+ * the user.
+ * 
+ * Assumptions made:
+ * * Charset encodings are written the same way as the Accept-Charset
+ *   HTTP header specifies them (RFC2616), except that they're parsed
+ *   case-insensitive.
+ * * Country codes and language codes are the same in both gettext and
+ *   the Accept-Language syntax (except for the case differences, which
+ *   are dealt with easily). If not, some input may be ignored.
+ * * The provided gettext-strings are fully qualified; i.e., no "en_US";
+ *   always "en_US.ISO-8859-15" or "en_US.UTF-8", or whichever has been
+ *   used. "en.ISO-8859-15" is OK, though.
+ * * The language is more important than the charset; i.e., if the
+ *   following is given:
+ * 
+ *   Accept-Language: nl-be, nl;q=0.8, en-us;q=0.5, en;q=0.3
+ *   Accept-Charset: ISO-8859-15, utf-8;q=0.5
+ *
+ *   And the supplied parameter contains (amongst others) nl_BE.UTF-8
+ *   and nl.ISO-8859-15, then nl_BE.UTF-8 will be picked.
+ * 
+ * $Log: accept-to-gettext.inc,v $
+ * Revision 1.1.1.1  2003/11/19 19:31:15  wouter
+ * * moved to new CVS repo after death of the old
+ * * Fixed code to apply a default to both Accept-Charset and
+ *   Accept-Language if none of those headers are supplied; patch from
+ *   Dominic Chambers <dominic at encasa.com>
+ *
+ * Revision 1.2  2003/08/14 10:23:59  wouter
+ * Removed little error in Content-Type header syntaxis.
+ *
+ */
+
+/* not really important, this one; perhaps I could've put it inline with
+ * the rest. */
+function find_match($curlscore,$curcscore,$curgtlang,$langval,$charval,
+                    $gtlang)
+{
+  if($curlscore < $langval) {
+    $curlscore=$langval;
+    $curcscore=$charval;
+    $curgtlang=$gtlang;
+  } else if ($curlscore == $langval) {
+    if($curcscore < $charval) {
+      $curcscore=$charval;
+      $curgtlang=$gtlang;
+    }
+  }
+  return array($curlscore, $curcscore, $curgtlang);
+}
+
+function al2gt($gettextlangs, $mime) {
+  /* default to "everything is acceptable", as RFC2616 specifies */
+  $acceptLang=(($_SERVER["HTTP_ACCEPT_LANGUAGE"] == '') ? '*' :
+  	$_SERVER["HTTP_ACCEPT_LANGUAGE"]);
+  $acceptChar=(($_SERVER["HTTP_ACCEPT_CHARSET"] == '') ? '*' :
+  	$_SERVER["HTTP_ACCEPT_CHARSET"]);
+  $alparts=@preg_split("/,/",$acceptLang);
+  $acparts=@preg_split("/,/",$acceptChar);
+  
+  /* Parse the contents of the Accept-Language header.*/
+  foreach($alparts as $part) {
+    $part=trim($part);
+    if(preg_match("/;/", $part)) {
+      $lang=@preg_split("/;/",$part);
+      $score=@preg_split("/=/",$lang[1]);
+      $alscores[$lang[0]]=$score[1];
+    } else {
+      $alscores[$part]=1;
+    }
+  }
+
+  /* Do the same for the Accept-Charset header. */
+
+  /* RFC2616: ``If no "*" is present in an Accept-Charset field, then
+   * all character sets not explicitly mentioned get a quality value of
+   * 0, except for ISO-8859-1, which gets a quality value of 1 if not
+   * explicitly mentioned.''
+   * 
+   * Making it 2 for the time being, so that we
+   * can distinguish between "not specified" and "specified as 1" later
+   * on. */
+  $acscores["ISO-8859-1"]=2;
+
+  foreach($acparts as $part) {
+    $part=trim($part);
+    if(preg_match("/;/", $part)) {
+      $cs=@preg_split("/;/",$part);
+      $score=@preg_split("/=/",$cs[1]);
+      $acscores[strtoupper($cs[0])]=$score[1];
+    } else {
+      $acscores[strtoupper($part)]=1;
+    }
+  }
+  if($acscores["ISO-8859-1"]==2) {
+    $acscores["ISO-8859-1"]=(isset($acscores["*"])?$acscores["*"]:1);
+  }
+
+  /* 
+   * Loop through the available languages/encodings, and pick the one
+   * with the highest score, excluding the ones with a charset the user
+   * did not include.
+   */
+  $curlscore=0;
+  $curcscore=0;
+  $curgtlang=NULL;
+  foreach($gettextlangs as $gtlang) {
+
+    $tmp1=preg_replace("/\_/","-",$gtlang);
+    $tmp2=@preg_split("/\./",$tmp1);
+    $allang=strtolower($tmp2[0]);
+    $gtcs=strtoupper($tmp2[1]);
+    $noct=@preg_split("/-/",$allang);
+
+    $testvals=array(
+         array($alscores[$allang], $acscores[$gtcs]),
+	 array($alscores[$noct[0]], $acscores[$gtcs]),
+	 array($alscores[$allang], $acscores["*"]),
+	 array($alscores[$noct[0]], $acscores["*"]),
+	 array($alscores["*"], $acscores[$gtcs]),
+	 array($alscores["*"], $acscores["*"]));
+
+    $found=FALSE;
+    foreach($testvals as $tval) {
+      if(!$found && isset($tval[0]) && isset($tval[1])) {
+        $arr=find_match($curlscore, $curcscore, $curgtlang, $tval[0],
+	          $tval[1], $gtlang);
+        $curlscore=$arr[0];
+        $curcscore=$arr[1];
+        $curgtlang=$arr[2];
+	$found=TRUE;
+      }
+    }
+  }
+
+  /* We must re-parse the gettext-string now, since we may have found it
+   * through a "*" qualifier.*/
+  
+  $gtparts=@preg_split("/\./",$curgtlang);
+  $tmp=strtolower($gtparts[0]);
+  $lang=preg_replace("/\_/", "-", $tmp);
+  $charset=$gtparts[1];
+
+  header("Content-Language: $lang");
+  header("Content-Type: $mime; charset=$charset");
+
+  return $curgtlang;
+}
+
+?>
diff --git a/externals/gettext.inc b/externals/gettext.inc
new file mode 100644
index 0000000..399a0f2
--- /dev/null
+++ b/externals/gettext.inc
@@ -0,0 +1,534 @@
+<?php
+/*
+   Copyright (c) 2005 Steven Armstrong <sa at c-area dot ch>
+   Copyright (c) 2009 Danilo Segan <danilo at kvota.net>
+
+   Drop in replacement for native gettext.
+
+   This file is part of PHP-gettext.
+
+   PHP-gettext 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.
+
+   PHP-gettext 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 PHP-gettext; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+/*
+LC_CTYPE        0
+LC_NUMERIC      1
+LC_TIME         2
+LC_COLLATE      3
+LC_MONETARY     4
+LC_MESSAGES     5
+LC_ALL          6
+*/
+
+
+// LC_MESSAGES is not available if php-gettext is not loaded
+// while the other constants are already available from session extension.
+if (!defined('LC_MESSAGES')) {
+  define('LC_MESSAGES',	5);
+}
+
+require('streams.php');
+require('gettext.php');
+
+
+// Variables
+
+global $text_domains, $default_domain, $LC_CATEGORIES, $EMULATEGETTEXT, $CURRENTLOCALE;
+$text_domains = array();
+$default_domain = 'messages';
+$LC_CATEGORIES = array('LC_CTYPE', 'LC_NUMERIC', 'LC_TIME', 'LC_COLLATE', 'LC_MONETARY', 'LC_MESSAGES', 'LC_ALL');
+$EMULATEGETTEXT = 0;
+$CURRENTLOCALE = '';
+
+/* Class to hold a single domain included in $text_domains. */
+class domain {
+  var $l10n;
+  var $path;
+  var $codeset;
+}
+
+// Utility functions
+
+/**
+ * Return a list of locales to try for any POSIX-style locale specification.
+ */
+function get_list_of_locales($locale) {
+  /* Figure out all possible locale names and start with the most
+   * specific ones.  I.e. for sr_CS.UTF-8 at latin, look through all of
+   * sr_CS.UTF-8 at latin, sr_CS at latin, sr at latin, sr_CS.UTF-8, sr_CS, sr.
+   */
+  $locale_names = array();
+  $lang = NULL;
+  $country = NULL;
+  $charset = NULL;
+  $modifier = NULL;
+  if ($locale) {
+    if (preg_match("/^(?P<lang>[a-z]{2,3})"              // language code
+                   ."(?:_(?P<country>[A-Z]{2}))?"           // country code
+                   ."(?:\.(?P<charset>[-A-Za-z0-9_]+))?"    // charset
+                   ."(?:@(?P<modifier>[-A-Za-z0-9_]+))?$/",  // @ modifier
+                   $locale, $matches)) {
+
+      if (isset($matches["lang"])) $lang = $matches["lang"];
+      if (isset($matches["country"])) $country = $matches["country"];
+      if (isset($matches["charset"])) $charset = $matches["charset"];
+      if (isset($matches["modifier"])) $modifier = $matches["modifier"];
+
+      if ($modifier) {
+        if ($country) {
+          if ($charset)
+            array_push($locale_names, "${lang}_$country.$charset@$modifier");
+          array_push($locale_names, "${lang}_$country@$modifier");
+        } elseif ($charset)
+            array_push($locale_names, "${lang}.$charset@$modifier");
+        array_push($locale_names, "$lang@$modifier");
+      }
+      if ($country) {
+        if ($charset)
+          array_push($locale_names, "${lang}_$country.$charset");
+        array_push($locale_names, "${lang}_$country");
+      } elseif ($charset)
+          array_push($locale_names, "${lang}.$charset");
+      array_push($locale_names, $lang);
+    }
+
+    // If the locale name doesn't match POSIX style, just include it as-is.
+    if (!in_array($locale, $locale_names))
+      array_push($locale_names, $locale);
+  }
+  return $locale_names;
+}
+
+/**
+ * Utility function to get a StreamReader for the given text domain.
+ */
+function _get_reader($domain=null, $category=5, $enable_cache=true) {
+    global $text_domains, $default_domain, $LC_CATEGORIES;
+    if (!isset($domain)) $domain = $default_domain;
+    if (!isset($text_domains[$domain]->l10n)) {
+        // get the current locale
+        $locale = _setlocale(LC_MESSAGES, 0);
+        $bound_path = isset($text_domains[$domain]->path) ?
+          $text_domains[$domain]->path : './';
+        $subpath = $LC_CATEGORIES[$category] ."/$domain.mo";
+
+        $locale_names = get_list_of_locales($locale);
+        $input = null;
+        foreach ($locale_names as $locale) {
+          $full_path = $bound_path . $locale . "/" . $subpath;
+          if (file_exists($full_path)) {
+            $input = new FileReader($full_path);
+            break;
+          }
+        }
+
+        if (!array_key_exists($domain, $text_domains)) {
+          // Initialize an empty domain object.
+          $text_domains[$domain] = new domain();
+        }
+        $text_domains[$domain]->l10n = new gettext_reader($input,
+                                                          $enable_cache);
+    }
+    return $text_domains[$domain]->l10n;
+}
+
+/**
+ * Returns whether we are using our emulated gettext API or PHP built-in one.
+ */
+function locale_emulation() {
+    global $EMULATEGETTEXT;
+    return $EMULATEGETTEXT;
+}
+
+/**
+ * Checks if the current locale is supported on this system.
+ */
+function _check_locale_and_function($function=false) {
+    global $EMULATEGETTEXT;
+    if ($function and !function_exists($function))
+        return false;
+    return !$EMULATEGETTEXT;
+}
+
+/**
+ * Get the codeset for the given domain.
+ */
+function _get_codeset($domain=null) {
+    global $text_domains, $default_domain, $LC_CATEGORIES;
+    if (!isset($domain)) $domain = $default_domain;
+    return (isset($text_domains[$domain]->codeset))? $text_domains[$domain]->codeset : ini_get('mbstring.internal_encoding');
+}
+
+/**
+ * Convert the given string to the encoding set by bind_textdomain_codeset.
+ */
+function _encode($text) {
+    $source_encoding = mb_detect_encoding($text);
+    $target_encoding = _get_codeset();
+    if ($source_encoding != $target_encoding) {
+        return mb_convert_encoding($text, $target_encoding, $source_encoding);
+    }
+    else {
+        return $text;
+    }
+}
+
+
+// Custom implementation of the standard gettext related functions
+
+/**
+ * Returns passed in $locale, or environment variable $LANG if $locale == ''.
+ */
+function _get_default_locale($locale) {
+  if ($locale == '') // emulate variable support
+    return getenv('LANG');
+  else
+    return $locale;
+}
+
+/**
+ * Sets a requested locale, if needed emulates it.
+ */
+function _setlocale($category, $locale) {
+    global $CURRENTLOCALE, $EMULATEGETTEXT;
+    if ($locale === 0) { // use === to differentiate between string "0"
+        if ($CURRENTLOCALE != '')
+            return $CURRENTLOCALE;
+        else
+            // obey LANG variable, maybe extend to support all of LC_* vars
+            // even if we tried to read locale without setting it first
+            return _setlocale($category, $CURRENTLOCALE);
+    } else {
+        if (function_exists('setlocale')) {
+          $ret = setlocale($category, $locale);
+          if (($locale == '' and !$ret) or // failed setting it by env
+              ($locale != '' and $ret != $locale)) { // failed setting it
+            // Failed setting it according to environment.
+            $CURRENTLOCALE = _get_default_locale($locale);
+            $EMULATEGETTEXT = 1;
+          } else {
+            $CURRENTLOCALE = $ret;
+            $EMULATEGETTEXT = 0;
+          }
+        } else {
+          // No function setlocale(), emulate it all.
+          $CURRENTLOCALE = _get_default_locale($locale);
+          $EMULATEGETTEXT = 1;
+        }
+        // Allow locale to be changed on the go for one translation domain.
+        global $text_domains, $default_domain;
+        unset($text_domains[$default_domain]->l10n);
+        return $CURRENTLOCALE;
+    }
+}
+
+/**
+ * Sets the path for a domain.
+ */
+function _bindtextdomain($domain, $path) {
+    global $text_domains;
+    // ensure $path ends with a slash ('/' should work for both, but lets still play nice)
+    if (substr(php_uname(), 0, 7) == "Windows") {
+      if ($path[strlen($path)-1] != '\\' and $path[strlen($path)-1] != '/')
+        $path .= '\\';
+    } else {
+      if ($path[strlen($path)-1] != '/')
+        $path .= '/';
+    }
+    if (!array_key_exists($domain, $text_domains)) {
+      // Initialize an empty domain object.
+      $text_domains[$domain] = new domain();
+    }
+    $text_domains[$domain]->path = $path;
+}
+
+/**
+ * Specify the character encoding in which the messages from the DOMAIN message catalog will be returned.
+ */
+function _bind_textdomain_codeset($domain, $codeset) {
+    global $text_domains;
+    $text_domains[$domain]->codeset = $codeset;
+}
+
+/**
+ * Sets the default domain.
+ */
+function _textdomain($domain) {
+    global $default_domain;
+    $default_domain = $domain;
+}
+
+/**
+ * Lookup a message in the current domain.
+ */
+function _gettext($msgid) {
+    $l10n = _get_reader();
+    return _encode($l10n->translate($msgid));
+}
+
+/**
+ * Alias for gettext.
+ */
+function __($msgid) {
+    return _gettext($msgid);
+}
+
+/**
+ * Plural version of gettext.
+ */
+function _ngettext($single, $plural, $number) {
+    $l10n = _get_reader();
+    return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+/**
+ * Override the current domain.
+ */
+function _dgettext($domain, $msgid) {
+    $l10n = _get_reader($domain);
+    return _encode($l10n->translate($msgid));
+}
+
+/**
+ * Plural version of dgettext.
+ */
+function _dngettext($domain, $single, $plural, $number) {
+    $l10n = _get_reader($domain);
+    return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+/**
+ * Overrides the domain and category for a single lookup.
+ */
+function _dcgettext($domain, $msgid, $category) {
+    $l10n = _get_reader($domain, $category);
+    return _encode($l10n->translate($msgid));
+}
+/**
+ * Plural version of dcgettext.
+ */
+function _dcngettext($domain, $single, $plural, $number, $category) {
+    $l10n = _get_reader($domain, $category);
+    return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+/**
+ * Context version of gettext.
+ */
+function _pgettext($context, $msgid) {
+    $l10n = _get_reader();
+    return _encode($l10n->pgettext($context, $msgid));
+}
+
+/**
+ * Override the current domain in a context gettext call.
+ */
+function _dpgettext($domain, $context, $msgid) {
+    $l10n = _get_reader($domain);
+    return _encode($l10n->pgettext($context, $msgid));
+}
+
+/**
+ * Overrides the domain and category for a single context-based lookup.
+ */
+function _dcpgettext($domain, $context, $msgid, $category) {
+    $l10n = _get_reader($domain, $category);
+    return _encode($l10n->pgettext($context, $msgid));
+}
+
+/**
+ * Context version of ngettext.
+ */
+function _npgettext($context, $singular, $plural) {
+    $l10n = _get_reader();
+    return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+/**
+ * Override the current domain in a context ngettext call.
+ */
+function _dnpgettext($domain, $context, $singular, $plural) {
+    $l10n = _get_reader($domain);
+    return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+/**
+ * Overrides the domain and category for a plural context-based lookup.
+ */
+function _dcnpgettext($domain, $context, $singular, $plural, $category) {
+    $l10n = _get_reader($domain, $category);
+    return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+
+
+// Wrappers to use if the standard gettext functions are available,
+// but the current locale is not supported by the system.
+// Use the standard impl if the current locale is supported, use the
+// custom impl otherwise.
+
+function T_setlocale($category, $locale) {
+    return _setlocale($category, $locale);
+}
+
+function T_bindtextdomain($domain, $path) {
+    if (_check_locale_and_function()) return bindtextdomain($domain, $path);
+    else return _bindtextdomain($domain, $path);
+}
+function T_bind_textdomain_codeset($domain, $codeset) {
+    // bind_textdomain_codeset is available only in PHP 4.2.0+
+    if (_check_locale_and_function('bind_textdomain_codeset'))
+        return bind_textdomain_codeset($domain, $codeset);
+    else return _bind_textdomain_codeset($domain, $codeset);
+}
+function T_textdomain($domain) {
+    if (_check_locale_and_function()) return textdomain($domain);
+    else return _textdomain($domain);
+}
+function T_gettext($msgid) {
+    if (_check_locale_and_function()) return gettext($msgid);
+    else return _gettext($msgid);
+}
+function T_($msgid) {
+    if (_check_locale_and_function()) return _($msgid);
+    return __($msgid);
+}
+function T_ngettext($single, $plural, $number) {
+    if (_check_locale_and_function())
+        return ngettext($single, $plural, $number);
+    else return _ngettext($single, $plural, $number);
+}
+function T_dgettext($domain, $msgid) {
+    if (_check_locale_and_function()) return dgettext($domain, $msgid);
+    else return _dgettext($domain, $msgid);
+}
+function T_dngettext($domain, $single, $plural, $number) {
+    if (_check_locale_and_function())
+        return dngettext($domain, $single, $plural, $number);
+    else return _dngettext($domain, $single, $plural, $number);
+}
+function T_dcgettext($domain, $msgid, $category) {
+    if (_check_locale_and_function())
+        return dcgettext($domain, $msgid, $category);
+    else return _dcgettext($domain, $msgid, $category);
+}
+function T_dcngettext($domain, $single, $plural, $number, $category) {
+    if (_check_locale_and_function())
+      return dcngettext($domain, $single, $plural, $number, $category);
+    else return _dcngettext($domain, $single, $plural, $number, $category);
+}
+
+function T_pgettext($context, $msgid) {
+  if (_check_locale_and_function('pgettext'))
+      return pgettext($context, $msgid);
+  else
+      return _pgettext($context, $msgid);
+}
+
+function T_dpgettext($domain, $context, $msgid) {
+  if (_check_locale_and_function('dpgettext'))
+      return dpgettext($domain, $context, $msgid);
+  else
+      return _dpgettext($domain, $context, $msgid);
+}
+
+function T_dcpgettext($domain, $context, $msgid, $category) {
+  if (_check_locale_and_function('dcpgettext'))
+      return dcpgettext($domain, $context, $msgid, $category);
+  else
+      return _dcpgettext($domain, $context, $msgid, $category);
+}
+
+function T_npgettext($context, $singular, $plural) {
+    if (_check_locale_and_function('npgettext'))
+        return npgettext($context, $single, $plural, $number);
+    else
+        return _npgettext($context, $single, $plural, $number);
+}
+
+function T_dnpgettext($domain, $context, $singular, $plural) {
+  if (_check_locale_and_function('dnpgettext'))
+      return dnpgettext($domain, $context, $single, $plural, $number);
+  else
+      return _dnpgettext($domain, $context, $single, $plural, $number);
+}
+
+function T_dcnpgettext($domain, $context, $singular, $plural, $category) {
+    if (_check_locale_and_function('dcnpgettext'))
+        return dcnpgettext($domain, $context, $single,
+                           $plural, $number, $category);
+    else
+        return _dcnpgettext($domain, $context, $single,
+                            $plural, $number, $category);
+}
+
+
+
+// Wrappers used as a drop in replacement for the standard gettext functions
+
+if (!function_exists('gettext')) {
+    function bindtextdomain($domain, $path) {
+        return _bindtextdomain($domain, $path);
+    }
+    function bind_textdomain_codeset($domain, $codeset) {
+        return _bind_textdomain_codeset($domain, $codeset);
+    }
+    function textdomain($domain) {
+        return _textdomain($domain);
+    }
+    function gettext($msgid) {
+        return _gettext($msgid);
+    }
+    function _($msgid) {
+        return __($msgid);
+    }
+    function ngettext($single, $plural, $number) {
+        return _ngettext($single, $plural, $number);
+    }
+    function dgettext($domain, $msgid) {
+        return _dgettext($domain, $msgid);
+    }
+    function dngettext($domain, $single, $plural, $number) {
+        return _dngettext($domain, $single, $plural, $number);
+    }
+    function dcgettext($domain, $msgid, $category) {
+        return _dcgettext($domain, $msgid, $category);
+    }
+    function dcngettext($domain, $single, $plural, $number, $category) {
+        return _dcngettext($domain, $single, $plural, $number, $category);
+    }
+    function pgettext($context, $msgid) {
+        return _pgettext($context, $msgid);
+    }
+    function npgettext($context, $single, $plural, $number) {
+        return _npgettext($context, $single, $plural, $number);
+    }
+    function dpgettext($domain, $context, $msgid) {
+        return _dpgettext($domain, $context, $msgid);
+    }
+    function dnpgettext($domain, $context, $single, $plural, $number) {
+        return _dnpgettext($domain, $context, $single, $plural, $number);
+    }
+    function dcpgettext($domain, $context, $msgid, $category) {
+        return _dcpgettext($domain, $context, $msgid, $category);
+    }
+    function dcnpgettext($domain, $context, $single, $plural,
+                         $number, $category) {
+      return _dcnpgettext($domain, $context, $single, $plural,
+                          $number, $category);
+    }
+}
+
+?>
diff --git a/externals/gettext.php b/externals/gettext.php
new file mode 100644
index 0000000..a121f9c
--- /dev/null
+++ b/externals/gettext.php
@@ -0,0 +1,421 @@
+<?php
+/*
+   Copyright (c) 2003, 2009 Danilo Segan <danilo at kvota.net>.
+   Copyright (c) 2005 Nico Kaiser <nico at siriux.net>
+
+   This file is part of PHP-gettext.
+
+   PHP-gettext 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.
+
+   PHP-gettext 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 PHP-gettext; if not, write to the Free Software
+   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
+ * second parameter in the constructor (e.g. whenusing very large MO files
+ * that you don't want to keep in memory)
+ */
+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;
+  var $short_circuit = false;
+  var $enable_cache = false;
+  var $originals = NULL;      // offset of original table
+  var $translations = NULL;    // offset of translation table
+  var $pluralheader = NULL;    // cache header field for plural forms
+  var $total = 0;          // total string count
+  var $table_originals = NULL;  // table for original strings (offsets)
+  var $table_translations = NULL;  // table for translated strings (offsets)
+  var $cache_translations = NULL;  // original -> translation mapping
+
+
+  /* Methods */
+
+
+  /**
+   * Reads a 32bit Integer from the Stream
+   *
+   * @access private
+   * @return Integer from the Stream
+   */
+  function readint() {
+      if ($this->BYTEORDER == 0) {
+        // low endian
+        $input=unpack('V', $this->STREAM->read(4));
+        return array_shift($input);
+      } else {
+        // big endian
+        $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
+   */
+  function readintarray($count) {
+    if ($this->BYTEORDER == 0) {
+        // low endian
+        return unpack('V'.$count, $this->STREAM->read(4 * $count));
+      } else {
+        // big endian
+        return unpack('N'.$count, $this->STREAM->read(4 * $count));
+      }
+  }
+
+  /**
+   * Constructor
+   *
+   * @param object Reader the StreamReader object
+   * @param boolean enable_cache Enable or disable caching of strings (default on)
+   */
+  function gettext_reader($Reader, $enable_cache = true) {
+    // If there isn't a StreamReader, turn on short circuit mode.
+    if (! $Reader || isset($Reader->error) ) {
+      $this->short_circuit = true;
+      return;
+    }
+
+    // Caching can be turned off
+    $this->enable_cache = $enable_cache;
+
+    $MAGIC1 = "\x95\x04\x12\xde";
+    $MAGIC2 = "\xde\x12\x04\x95";
+
+    $this->STREAM = $Reader;
+    $magic = $this->read(4);
+    if ($magic == $MAGIC1) {
+      $this->BYTEORDER = 1;
+    } elseif ($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 = $this->readint();
+  }
+
+  /**
+   * Loads the translation tables from the MO file into the cache
+   * If caching is enabled, also loads all strings into a cache
+   * to speed up translation lookups
+   *
+   * @access private
+   */
+  function load_tables() {
+    if (is_array($this->cache_translations) &&
+      is_array($this->table_originals) &&
+      is_array($this->table_translations))
+      return;
+
+    /* get original and translations tables */
+    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) {
+      $this->cache_translations = array ();
+      /* read all strings in the cache */
+      for ($i = 0; $i < $this->total; $i++) {
+        $this->STREAM->seekto($this->table_originals[$i * 2 + 2]);
+        $original = $this->STREAM->read($this->table_originals[$i * 2 + 1]);
+        $this->STREAM->seekto($this->table_translations[$i * 2 + 2]);
+        $translation = $this->STREAM->read($this->table_translations[$i * 2 + 1]);
+        $this->cache_translations[$original] = $translation;
+      }
+    }
+  }
+
+  /**
+   * Returns a string from the "originals" table
+   *
+   * @access private
+   * @param int num Offset number of original string
+   * @return string Requested string if found, otherwise ''
+   */
+  function get_original_string($num) {
+    $length = $this->table_originals[$num * 2 + 1];
+    $offset = $this->table_originals[$num * 2 + 2];
+    if (! $length)
+      return '';
+    $this->STREAM->seekto($offset);
+    $data = $this->STREAM->read($length);
+    return (string)$data;
+  }
+
+  /**
+   * Returns a string from the "translations" table
+   *
+   * @access private
+   * @param int num Offset number of original string
+   * @return string Requested string if found, otherwise ''
+   */
+  function get_translation_string($num) {
+    $length = $this->table_translations[$num * 2 + 1];
+    $offset = $this->table_translations[$num * 2 + 2];
+    if (! $length)
+      return '';
+    $this->STREAM->seekto($offset);
+    $data = $this->STREAM->read($length);
+    return (string)$data;
+  }
+
+  /**
+   * Binary search for string
+   *
+   * @access private
+   * @param string string
+   * @param int start (internally used in recursive function)
+   * @param int end (internally used in recursive function)
+   * @return int string number (offset in originals table)
+   */
+  function find_string($string, $start = -1, $end = -1) {
+    if (($start == -1) or ($end == -1)) {
+      // find_string is called with only one parameter, set start end end
+      $start = 0;
+      $end = $this->total;
+    }
+    if (abs($start - $end) <= 1) {
+      // We're done, now we either found the string, or it doesn't exist
+      $txt = $this->get_original_string($start);
+      if ($string == $txt)
+        return $start;
+      else
+        return -1;
+    } else if ($start > $end) {
+      // start > end -> turn around and start over
+      return $this->find_string($string, $end, $start);
+    } else {
+      // Divide table in two parts
+      $half = (int)(($start + $end) / 2);
+      $cmp = strcmp($string, $this->get_original_string($half));
+      if ($cmp == 0)
+        // string is exactly in the middle => return it
+        return $half;
+      else if ($cmp < 0)
+        // The string is in the upper half
+        return $this->find_string($string, $start, $half);
+      else
+        // The string is in the lower half
+        return $this->find_string($string, $half, $end);
+    }
+  }
+
+  /**
+   * Translates a string
+   *
+   * @access public
+   * @param string string to be translated
+   * @return string translated string (or original, if not found)
+   */
+  function translate($string) {
+    if ($this->short_circuit)
+      return $string;
+    $this->load_tables();
+
+    if ($this->enable_cache) {
+      // Caching enabled, get translated string from cache
+      if (array_key_exists($string, $this->cache_translations))
+        return $this->cache_translations[$string];
+      else
+        return $string;
+    } else {
+      // Caching not enabled, try to find string
+      $num = $this->find_string($string);
+      if ($num == -1)
+        return $string;
+      else
+        return $this->get_translation_string($num);
+    }
+  }
+
+  /**
+   * 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
+    // this is true, right?
+    $this->load_tables();
+
+    // cache header field for plural forms
+    if (! is_string($this->pluralheader)) {
+      if ($this->enable_cache) {
+        $header = $this->cache_translations[""];
+      } else {
+        $header = $this->get_translation_string(0);
+      }
+      $expr = $this->extract_plural_forms_header_from_po_header($header);
+      $this->pluralheader = $this->sanitize_plural_expression($expr);
+    }
+    return $this->pluralheader;
+  }
+
+  /**
+   * Detects which plural form to take
+   *
+   * @access private
+   * @param n count
+   * @return int array index of the right plural form
+   */
+  function select_string($n) {
+    $string = $this->get_plural_forms();
+    $string = str_replace('nplurals',"\$total",$string);
+    $string = str_replace("n",$n,$string);
+    $string = str_replace('plural',"\$plural",$string);
+
+    $total = 0;
+    $plural = 0;
+
+    eval("$string");
+    if ($plural >= $total) $plural = $total - 1;
+    return $plural;
+  }
+
+  /**
+   * Plural version of gettext
+   *
+   * @access public
+   * @param string single
+   * @param string plural
+   * @param string number
+   * @return translated plural form
+   */
+  function ngettext($single, $plural, $number) {
+    if ($this->short_circuit) {
+      if ($number != 1)
+        return $plural;
+      else
+        return $single;
+    }
+
+    // find out the appropriate form
+    $select = $this->select_string($number);
+
+    // this should contains all strings separated by NULLs
+    $key = $single . chr(0) . $plural;
+
+
+    if ($this->enable_cache) {
+      if (! array_key_exists($key, $this->cache_translations)) {
+        return ($number != 1) ? $plural : $single;
+      } else {
+        $result = $this->cache_translations[$key];
+        $list = explode(chr(0), $result);
+        return $list[$select];
+      }
+    } else {
+      $num = $this->find_string($key);
+      if ($num == -1) {
+        return ($number != 1) ? $plural : $single;
+      } else {
+        $result = $this->get_translation_string($num);
+        $list = explode(chr(0), $result);
+        return $list[$select];
+      }
+    }
+  }
+
+  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);
+  }
+}
+
+?>
diff --git a/lang.php b/lang.php
index 1fd0232..794558d 100644
--- a/lang.php
+++ b/lang.php
@@ -100,6 +100,9 @@ setcookie("lang_cookie", $locale);
 
 # We should have a locale now, let's set up the required bits and pieces to show
 # the website in that language.
+require_once("externals/gettext.inc");
+//putenv("LANG=$locale");
+//putenv("LANGUAGE=$locale");
 $locale_res = T_setlocale(LC_ALL, $locale);
 $domain = "gnucash-htdocs";
 if (! isset($text_dir)) { $text_dir = $locale_dir; }



Summary of changes:
 accept-to-gettext.inc | 184 +++++++++++++++++
 externals/gettext.inc | 534 ++++++++++++++++++++++++++++++++++++++++++++++++++
 externals/gettext.php | 421 +++++++++++++++++++++++++++++++++++++++
 lang.php              |   3 +
 4 files changed, 1142 insertions(+)
 create mode 100644 accept-to-gettext.inc
 create mode 100644 externals/gettext.inc
 create mode 100644 externals/gettext.php



More information about the gnucash-changes mailing list