The Tor Browser: layout/mathml/updateOperatorDictionary.pl@4ab42b5ab56c (annotated)

layout/mathml/updateOperatorDictionary.pl@4ab42b5ab56c (annotated)

layout/mathml/updateOperatorDictionary.pl

Wed, 31 Dec 2014 07:53:36 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:53:36 +0100
branch: TOR_BUG_3246
changeset 5: 4ab42b5ab56c
permissions: -rwxr-xr-x

Correct small whitespace inconsistency, lost while renaming variables.

 #!/usr/bin/perl
 # -*- Mode: Perl; tab-width: 2; indent-tabs-mode: nil; -*-
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 use XML::LibXSLT;
 use XML::LibXML;
 use LWP::Simple;
 # output files
 $FILE_UNICODE = "unicode.xml";
 $FILE_DICTIONARY = "dictionary.xml";
 $FILE_DIFFERENCES = "differences.txt";
 $FILE_NEW_DICTIONARY = "new_dictionary.txt";
 $FILE_SYNTAX_ERRORS = "syntax_errors.txt";
 $FILE_JS = "tests/stretchy-and-large-operators.js";
 # our dictionary (property file)
 $MOZ_DICTIONARY = "mathfont.properties";
 # dictionary provided by the W3C in "XML Entity Definitions for Characters"
 $WG_DICTIONARY_URL = "http://www.w3.org/2003/entities/2007xml/unicode.xml";
 # XSL stylesheet to extract relevant data from the dictionary
 $DICTIONARY_XSL = "operatorDictionary.xsl";
 # dictionary provided by the W3C transformed with operatorDictionary.xsl
 $WG_DICTIONARY = $FILE_DICTIONARY;
 if (!($#ARGV >= 0 &&
       ((($ARGV[0] eq "download") && $#ARGV <= 1) ||
        (($ARGV[0] eq "compare") && $#ARGV <= 1) ||
        (($ARGV[0] eq "check") && $#ARGV <= 0) ||
        (($ARGV[0] eq "make-js") && $#ARGV <= 0) ||
        (($ARGV[0] eq "clean") && $#ARGV <= 0)))) {
     &usage;
 }
 if ($ARGV[0] eq "download") {
     if ($#ARGV == 1) {
         $WG_DICTIONARY_URL = $ARGV[1];
     }
     print "Downloading $WG_DICTIONARY_URL...\n";
     getstore($WG_DICTIONARY_URL, $FILE_UNICODE);
     print "Converting $FILE_UNICODE into $FILE_DICTIONARY...\n";
     my $xslt = XML::LibXSLT->new();
     my $source = XML::LibXML->load_xml(location => $FILE_UNICODE);
     my $style_doc = XML::LibXML->load_xml(location => $DICTIONARY_XSL,
                                           no_cdata=>1);
     my $stylesheet = $xslt->parse_stylesheet($style_doc);
     my $results = $stylesheet->transform($source);
     open($file, ">$FILE_DICTIONARY") || die ("Couldn't open $FILE_DICTIONARY!");
     print $file $stylesheet->output_as_bytes($results);
     close($file);
     exit 0;
 }
 if ($ARGV[0] eq "clean") {
     unlink($FILE_UNICODE,
            $FILE_DICTIONARY,
            $FILE_DIFFERENCES,
            $FILE_NEW_DICTIONARY,
            $FILE_SYNTAX_ERRORS);
     exit 0;
 }
 if ($ARGV[0] eq "compare" && $#ARGV == 1) {
     $WG_DICTIONARY = $ARGV[1];
 }
 ################################################################################
 # structure of the dictionary used by this script:
 # - key: same as in mathfont.properties
 # - table:
 #    index | value
 #      0   | description
 #      1   | lspace
 #      2   | rspace
 #      3   | minsize
 #      4   | largeop
 #      5   | movablelimits
 #      6   | stretchy
 #      7   | separator
 #      8   | accent
 #      9   | fence
 #     10   | symmetric
 #     11   | priority
 #     12   | linebreakstyle
 #     13   | direction
 #     14   | integral
 #     15   | mirrorable
 # 1) build %moz_hash from $MOZ_DICTIONARY
 print "loading $MOZ_DICTIONARY...\n";
 open($file, $MOZ_DICTIONARY) || die ("Couldn't open $MOZ_DICTIONARY!");
 print "building dictionary...\n";
 while (<$file>) {
     next unless (m/^operator\.(.*)$/);
     (m/^([\w|\.|\\]*)\s=\s(.*)\s#\s(.*)$/);
     # 1.1) build the key
     $key = $1;
     # 1.2) build the array
     $_ = $2;
     @value = ();
     $value[0] = $3;
     if (m/^(.*)lspace:(\d)(.*)$/) { $value[1] = $2; } else { $value[1] = "5"; }
     if (m/^(.*)rspace:(\d)(.*)$/) { $value[2] = $2; } else { $value[2] = "5"; }
     if (m/^(.*)minsize:(\d)(.*)$/) { $value[3] = $2; } else { $value[3] = "1"; }
     $value[4] = (m/^(.*)largeop(.*)$/);
     $value[5] = (m/^(.*)movablelimits(.*)$/);
     $value[6] = (m/^(.*)stretchy(.*)$/);
     $value[7] = (m/^(.*)separator(.*)$/);
     $value[8] = (m/^(.*)accent(.*)$/);
     $value[9] = (m/^(.*)fence(.*)$/);
     $value[10] = (m/^(.*)symmetric(.*)$/);
     $value[11] = ""; # we don't store "priority" in our dictionary
     $value[12] = ""; # we don't store "linebreakstyle" in our dictionary
     if (m/^(.*)direction:([a-z]*)(.*)$/) { $value[13] = $2; }
     else { $value[13] = ""; }
     $value[14] = (m/^(.*)integral(.*)$/);
     $value[15] = (m/^(.*)mirrorable(.*)$/);
     # 1.3) save the key and value
     $moz_hash{$key} = [ @value ];
 }
 close($file);
 ################################################################################
 # 2) If mode "make-js", generate tests/stretchy-and-large-operators.js and quit.
 #    If mode "check", verify validity of our operator dictionary and quit.
 #    If mode "compare", go to step 3)
 if ($ARGV[0] eq "make-js") {
     print "generating file $FILE_JS...\n";
     open($file_js, ">$FILE_JS") ||
         die ("Couldn't open $FILE_JS!");
     print $file_js "// This file is automatically generated. Do not edit.\n";
     print $file_js "var stretchy_and_large_operators = [";
     @moz_keys = (keys %moz_hash);
     while ($key = pop(@moz_keys)) {
         @moz = @{ $moz_hash{$key} };
         $_ = $key;
         (m/^operator\.([\w|\.|\\]*)\.(prefix|infix|postfix)$/);
         $opname = "\\$1.$2: ";
         if (@moz[4]) {
             print $file_js "['$opname', '$1','l','$2'],";
         }
         if (@moz[6]) {
             $_ = substr(@moz[13], 0, 1);
             print $file_js "['$opname', '$1','$_','$2'],";
         }
     }
     print $file_js "];\n";
     close($file_js);
     exit 0;
 }
 if ($ARGV[0] eq "check") {
     print "checking operator dictionary...\n";
     open($file_syntax_errors, ">$FILE_SYNTAX_ERRORS") ||
         die ("Couldn't open $FILE_SYNTAX_ERRORS!");
     $nb_errors = 0;
     $nb_warnings = 0;
     @moz_keys = (keys %moz_hash);
     # check the validity of our private data
     while ($key = pop(@moz_keys)) {
         @moz = @{ $moz_hash{$key} };
         $entry = &generateEntry($key, @moz);
         $valid = 1;
         if (!(@moz[13] eq "" ||
               @moz[13] eq "horizontal" ||
               @moz[13] eq "vertical")) {
             $valid = 0;
             $nb_errors++;
             print $file_syntax_errors "error: invalid direction \"$moz[13]\"\n";
         }
         if (!@moz[4] && @moz[14]) {
             $valid = 0;
             $nb_warnings++;
             print $file_syntax_errors "warning: operator is integral but not largeop\n";
         }
         $_ = @moz[0];
         if ((m/^(.*)[iI]ntegral(.*)$/) && !@moz[14]) {
             $valid = 0;
             $nb_warnings++;
             print $file_syntax_errors "warning: operator contains the term \"integral\" in its comment, but is not integral\n";
         }
         if (!$valid) {
             print $file_syntax_errors $entry;
             print $file_syntax_errors "\n";
         }
     }
     # check that all forms have the same direction.
     @moz_keys = (keys %moz_hash);
     while ($key = pop(@moz_keys)) {
         if (@{ $moz_hash{$key} }) {
             # the operator has not been removed from the hash table yet.
             $_ = $key;
             (m/^([\w|\.|\\]*)\.(prefix|infix|postfix)$/);
             $key_prefix = "$1.prefix";
             $key_infix = "$1.infix";
             $key_postfix = "$1.postfix";
             @moz_prefix = @{ $moz_hash{$key_prefix} };
             @moz_infix = @{ $moz_hash{$key_infix} };
             @moz_postfix = @{ $moz_hash{$key_postfix} };
             $same_direction = 1;
             if (@moz_prefix) {
                 if (@moz_infix &&
                     !($moz_infix[13] eq $moz_prefix[13])) {
                     $same_direction = 0;
                 }
                 if (@moz_postfix &&
                     !($moz_postfix[13] eq $moz_prefix[13])) {
                     $same_direction = 0;
                 }
             }
             if (@moz_infix) {
                 if (@moz_postfix &&
                     !($moz_postfix[13] eq $moz_infix[13])) {
                     $same_direction = 0;
                 }
             }
             if (!$same_direction) {
                 $nb_errors++;
                 print  $file_syntax_errors
                     "error: operator has a stretchy form, but all forms";
                 print  $file_syntax_errors
                     " have not the same direction\n";
                 if (@moz_prefix) {
                     $_ = &generateEntry($key_prefix, @moz_prefix);
                     print $file_syntax_errors $_;
                 }
                 if (@moz_infix) {
                     $_ = &generateEntry($key_infix, @moz_infix);
                     print $file_syntax_errors $_;
                 }
                 if (@moz_postfix) {
                     $_ = &generateEntry($key_postfix, @moz_postfix);
                     print $file_syntax_errors $_;
                 }
                 print $file_syntax_errors "\n";
             }
             if (@moz_prefix) {
                 delete $moz_hash{$key.prefix};
             }
             if (@moz_infix) {
                 delete $moz_hash{$key_infix};
             }
             if (@moz_postfix) {
                 delete $moz_hash{$key_postfix};
             }
         }
     }
     close($file_syntax_errors);
     print "\n";
     if ($nb_errors > 0 || $nb_warnings > 0) {
         print "$nb_errors error(s) found\n";
         print "$nb_warnings warning(s) found\n";
         print "See output file $FILE_SYNTAX_ERRORS.\n\n";
     } else {
         print "No error found.\n\n";
     }
     exit 0;
 }
 ################################################################################
 # 3) build %wg_hash and @wg_keys from the page $WG_DICTIONARY
 print "loading $WG_DICTIONARY...\n";
 my $parser = XML::LibXML->new();
 my $doc = $parser->parse_file($WG_DICTIONARY);
 print "building dictionary...\n";
 @wg_keys = ();
 foreach my $entry ($doc->findnodes('/root/entry')) {
     # 3.1) build the key
     $key = "operator.";
     $_ = $entry->getAttribute("unicode");
     $_ = "$_-";
     while (m/^U?0(\w*)-(.*)$/) {
         # Concatenate .\uNNNN
         $key = "$key\\u$1";
         $_ = $2;
     }
     $_ = $entry->getAttribute("form"); # "Form"
     $key = "$key.$_";
     # 3.2) build the array
     @value = ();
     $value[0] = lc($entry->getAttribute("description"));
     $value[1] = $entry->getAttribute("lspace");
     if ($value[1] eq "") { $value[1] = "5"; }
     $value[2] = $entry->getAttribute("rspace");
     if ($value[2] eq "") { $value[2] = "5"; }
     $value[3] = $entry->getAttribute("minsize");
     if ($value[3] eq "") { $value[3] = "1"; }
     $_ = $entry->getAttribute("properties");
     $value[4] = (m/^(.*)largeop(.*)$/);
     $value[5] = (m/^(.*)movablelimits(.*)$/);
     $value[6] = (m/^(.*)stretchy(.*)$/);
     $value[7] = (m/^(.*)separator(.*)$/);
     $value[8] = (m/^(.*)accent(.*)$/);
     $value[9] = (m/^(.*)fence(.*)$/);
     $value[10] = (m/^(.*)symmetric(.*)$/);
     $value[15] = (m/^(.*)mirrorable(.*)$/);
     $value[11] = $entry->getAttribute("priority");
     $value[12] = $entry->getAttribute("linebreakstyle");
     # not stored in the WG dictionary
     $value[13] = ""; # direction
     $value[14] = ""; # integral
     # 3.3) save the key and value
     push(@wg_keys, $key);
     $wg_hash{$key} = [ @value ];
 }
 @wg_keys = reverse(@wg_keys);
 ################################################################################
 # 4) Compare the two dictionaries and output the result
 print "comparing dictionaries...\n";
 open($file_differences, ">$FILE_DIFFERENCES") ||
     die ("Couldn't open $FILE_DIFFERENCES!");
 open($file_new_dictionary, ">$FILE_NEW_DICTIONARY") ||
     die ("Couldn't open $FILE_NEW_DICTIONARY!");
 $conflicting = 0; $conflicting_stretching = 0;
 $new = 0; $new_stretching = 0;
 $obsolete = 0; $obsolete_stretching = 0;
 $unchanged = 0;
 # 4.1) look to the entries of the WG dictionary
 while ($key = pop(@wg_keys)) {
     @wg = @{ $wg_hash{$key} };
     delete $wg_hash{$key};
     $wg_value = &generateCommon(@wg);
     if (exists($moz_hash{$key})) {
         # entry is in both dictionary
         @moz = @{ $moz_hash{$key} };
         delete $moz_hash{$key};
         $moz_value = &generateCommon(@moz);
         if ($moz_value ne $wg_value) {
             # conflicting entry
             print $file_differences "[conflict]";
             $conflicting++;
             if ($moz[6] != $wg[6]) {
                 print $file_differences "[stretching]";
                 $conflicting_stretching++;
             }
             print $file_differences " - $key ($wg[0])\n";
             print $file_differences "-$moz_value\n+$wg_value\n\n";
             $_ = &completeCommon($wg_value, $key, @moz, @wg);
             print $file_new_dictionary $_;
         } else {
             # unchanged entry
             $unchanged++;
             $_ = &completeCommon($wg_value, $key, @moz, @wg);
             print $file_new_dictionary $_;
         }
     } else {
         # we don't have this entry in our dictionary yet
         print $file_differences "[new entry]";
         $new++;
         if ($wg[6]) {
             print $file_differences "[stretching]";
             $new_stretching++;
         }
         print $file_differences " - $key ($wg[0])\n";
         print $file_differences "-\n+$wg_value\n\n";
         $_ = &completeCommon($wg_value, $key, (), @wg);
         print $file_new_dictionary $_;
     }
 }
 print $file_new_dictionary
     "\n# Entries below are not part of the official MathML dictionary\n\n";
 # 4.2) look in our dictionary the remaining entries
 @moz_keys = (keys %moz_hash);
 @moz_keys = reverse(sort(@moz_keys));
 while ($key = pop(@moz_keys)) {
     @moz = @{ $moz_hash{$key} };
     $moz_value = &generateCommon(@moz);
     print $file_differences "[obsolete entry]";
     $obsolete++;
     if ($moz[6]) {
         print $file_differences "[stretching]";
         $obsolete_stretching++;
     }
     print $file_differences " - $key ($moz[0])\n";
     print $file_differences "-$moz_value\n+\n\n";
     $_ = &completeCommon($moz_value, $key, (), @moz);
     print $file_new_dictionary $_;
 }
 close($file_differences);
 close($file_new_dictionary);
 print "\n";
 print "- $obsolete obsolete entries ";
 print "($obsolete_stretching of them are related to stretching)\n";
 print "- $unchanged unchanged entries\n";
 print "- $conflicting conflicting entries ";
 print "($conflicting_stretching of them are related to stretching)\n";
 print "- $new new entries ";
 print "($new_stretching of them are related to stretching)\n";
 print "\nSee output files $FILE_DIFFERENCES and $FILE_NEW_DICTIONARY.\n\n";
 print "After having modified the dictionary, please run";
 print "./updateOperatorDictionary check\n\n";
 exit 0;
 ################################################################################
 sub usage {
     # display the accepted command syntax and quit
     print "usage:\n";
     print "  ./updateOperatorDictionary.pl download [unicode.xml]\n";
     print "  ./updateOperatorDictionary.pl compare [dictionary.xml]\n";
     print "  ./updateOperatorDictionary.pl check\n";
     print "  ./updateOperatorDictionary.pl make-js\n";
     print "  ./updateOperatorDictionary.pl clean\n";
     exit 0;
 }
 sub generateCommon {
     # helper function to generate the string of data shared by both dictionaries
     my(@v) = @_;
     $entry = "lspace:$v[1] rspace:$v[2]";
     if ($v[3] ne "1") { $entry = "$entry minsize:$v[3]"; }
     if ($v[4]) { $entry = "$entry largeop"; }
     if ($v[5]) { $entry = "$entry movablelimits"; }
     if ($v[6]) { $entry = "$entry stretchy"; }
     if ($v[7]) { $entry = "$entry separator"; }
     if ($v[8]) { $entry = "$entry accent"; }
     if ($v[9]) { $entry = "$entry fence"; }
     if ($v[10]) { $entry = "$entry symmetric"; }
     if ($v[15]) { $entry = "$entry mirrorable"; }
     return $entry;
 }
 sub completeCommon {
     # helper to add key and private data to generateCommon
     my($entry, $key, @v_moz, @v_wg) = @_;
     $entry = "$key = $entry";
     if ($v_moz[13]) { $entry = "$entry direction:$v_moz[13]"; }
     if ($v_moz[14]) { $entry = "$entry integral"; }
     if ($v_moz[15]) { $entry = "$entry mirrorable"; }
     if ($v_moz[0]) {
         # keep our previous comment
         $entry = "$entry # $v_moz[0]";
     } else {
         # otherwise use the description given by the WG
         $entry = "$entry # $v_wg[0]";
     }
     $entry = "$entry\n";
     return $entry;
 }
 sub generateEntry {
     # helper function to generate an entry of our operator dictionary
     my($key, @moz) = @_;
     $entry = &generateCommon(@moz);
     $entry = &completeCommon($entry, $key, @moz, @moz);
     return $entry;
 }

The Tor Browser / annotate

layout/mathml/updateOperatorDictionary.pl@4ab42b5ab56c (annotated)

layout/mathml/updateOperatorDictionary.pl