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Merge pull request #217 from moses-smt/alvations-patch-2
Proper spacing for sent-split perl script
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commit
e4a52f14e4
@ -27,10 +27,10 @@ my $LIST_ITEM = 0;
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while (@ARGV) {
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$_ = shift;
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/^-l$/ && ($language = shift, next);
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/^-p$/ && ($prefixfile = shift, next);
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/^-p$/ && ($prefixfile = shift, next);
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/^-q$/ && ($QUIET = 1, next);
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/^-h$/ && ($HELP = 1, next);
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/^-i$/ && ($LIST_ITEM = 1, next);
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/^-i$/ && ($LIST_ITEM = 1, next);
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/^-b$/ && ($|++, next); # no output buffering
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}
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@ -39,7 +39,7 @@ if ($HELP) {
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print "-q: quiet mode\n";
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print "-b: no output buffering (for use in bidirectional pipes)\n";
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print "-p: use a custom prefix file, overriding the installed one\n";
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print "-i: avoid splitting on list items (e.g. 1. This is the first)\n";
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print "-i: avoid splitting on list items (e.g. 1. This is the first)\n";
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exit;
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}
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if (!$QUIET) {
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@ -53,17 +53,17 @@ if ($language eq "yue" || $language eq "zh" || $language eq "ja") {
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}
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if ($prefixfile ne "") {
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print STDERR "Loading non-breaking prefixes from $prefixfile\n";
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print STDERR "Loading non-breaking prefixes from $prefixfile\n";
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} else {
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$prefixfile = "$mydir/nonbreaking_prefix.$language";
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$prefixfile = "$mydir/nonbreaking_prefix.$language";
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# Default to English, if we don't have a language-specific prefix file.
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if (!(-e $prefixfile)) {
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$prefixfile = "$mydir/nonbreaking_prefix.en";
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print STDERR "WARNING: No known abbreviations for language '$language', attempting fall-back to English version...\n";
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die ("ERROR: No abbreviations files found in $mydir\n") unless (-e $prefixfile);
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}
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# Default to English, if we don't have a language-specific prefix file.
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if (!(-e $prefixfile)) {
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$prefixfile = "$mydir/nonbreaking_prefix.en";
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print STDERR "WARNING: No known abbreviations for language '$language', attempting fall-back to English version...\n";
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die ("ERROR: No abbreviations files found in $mydir\n") unless (-e $prefixfile);
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}
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}
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if (-e "$prefixfile") {
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@ -122,21 +122,20 @@ sub preprocess {
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##### Add sentence breaks as needed #####
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# Sentences can start with upper-case, numnbers, or Indic characters
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my $sentence_start = "\\p{IsUpper}0-9";
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$sentence_start .= "\\p{Block: Devanagari}\\p{Block: Devanagari_Extended}" if ($language eq "hi" || $language eq "mr");
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$sentence_start .= "\\p{Block: Gujarati}" if $language eq "gu";
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$sentence_start .= "\\p{Block: Bengali}" if ($language eq "as" || $language eq "bn" || $language eq "mni");
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$sentence_start .= "\\p{Block: Kannada}" if $language eq "kn";
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$sentence_start .= "\\p{Block: Malayalam}" if $language eq "ml";
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$sentence_start .= "\\p{Block: Oriya}" if $language eq "or";
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$sentence_start .= "\\p{Block: Gurmukhi}" if $language eq "pa";
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$sentence_start .= "\\p{Block: Tamil}" if $language eq "ta";
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$sentence_start .= "\\p{Block: Telugu}" if $language eq "te";
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$sentence_start .= "\\p{Block: Hangul}\\p{Block: Hangul_Compatibility_Jamo}\\p{Block: Hangul_Jamo}\\p{Block: Hangul_Jamo_Extended_A}\\p{Block: Hangul_Jamo_Extended_B}" if $language eq "ko";
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# Sentences can start with upper-case, numnbers, or Indic characters
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my $sentence_start = "\\p{IsUpper}0-9";
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$sentence_start .= "\\p{Block: Devanagari}\\p{Block: Devanagari_Extended}" if ($language eq "hi" || $language eq "mr");
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$sentence_start .= "\\p{Block: Gujarati}" if $language eq "gu";
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$sentence_start .= "\\p{Block: Bengali}" if ($language eq "as" || $language eq "bn" || $language eq "mni");
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$sentence_start .= "\\p{Block: Kannada}" if $language eq "kn";
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$sentence_start .= "\\p{Block: Malayalam}" if $language eq "ml";
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$sentence_start .= "\\p{Block: Oriya}" if $language eq "or";
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$sentence_start .= "\\p{Block: Gurmukhi}" if $language eq "pa";
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$sentence_start .= "\\p{Block: Tamil}" if $language eq "ta";
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$sentence_start .= "\\p{Block: Telugu}" if $language eq "te";
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$sentence_start .= "\\p{Block: Hangul}\\p{Block: Hangul_Compatibility_Jamo}\\p{Block: Hangul_Jamo}\\p{Block: Hangul_Jamo_Extended_A}\\p{Block: Hangul_Jamo_Extended_B}" if $language eq "ko";
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# we include danda and double danda (U+0964 and U+0965) as sentence split characters
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# we include danda and double danda (U+0964 and U+0965) as sentence split characters
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# Non-period end of sentence markers (?!) followed by sentence starters.
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$text =~ s/([?!\x{0964}\x{0965}]) +([\'\"\(\[\¿\¡\p{IsPi}]*[$sentence_start])/$1\n$2/g;
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@ -153,15 +152,15 @@ sub preprocess {
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# and are followed by a sentence starter punctuation and upper case.
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$text =~ s/([?!\.\x{0964}\x{0965}]) +([\x{300d}\x{300f}\'\"\(\[\¿\¡\p{IsPi}]+[\ ]*[$sentence_start])/$1\n$2/g;
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#NOTE: Korean no longer handled here.
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#NOTE: Korean no longer handled here, cos Korean has spaces.
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if ($is_cjk == 1) {
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# Chinese uses unusual end-of-sentence markers. These are NOT
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# followed by whitespace. Nor is there any idea of capitalization.
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# There does not appear to be any unicode category for full-stops
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# in general, so list them here. U+3002 U+FF0E U+FF1F U+FF01
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#$text =~ s/([。.?!♪])/$1\n/g;
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$text =~ s/([\x{3002}\x{ff0e}\x{FF1F}\x{FF01}]+\s*["\x{201d}\x{201e}\x{300d}\x{300f}]?\s*)/$1\n/g;
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$text =~ s/([\x{3002}\x{ff0e}\x{FF1F}\x{FF01}]+\s*["\x{201d}\x{201e}\x{300d}\x{300f}]?\s*)/$1\n/g;
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# A normal full-stop or other Western sentence enders followed
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# by an ideograph is an end-of-sentence, always.
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@ -175,33 +174,34 @@ sub preprocess {
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# spaces here, so that later processing stages can tokenize readily.
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# Note that this handles mixed latinate+CJK.
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# TODO: perhaps also CJKExtA CJKExtB etc ??? CJK_Radicals_Sup ?
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# bhaddow - Comment this out since it adds white-space between Chinese characters. This is not
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# what we want from sentence-splitter!
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# bhaddow - Comment this out since it adds white-space between Chinese characters. This is not
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# what we want from sentence-splitter!
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#$text =~ s/(\p{Punctuation}) *(\p{CJK})/ $1 $2/g;
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#$text =~ s/(\p{CJK}) *(\p{Punctuation})/$1 $2 /g;
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#$text =~ s/([\p{CJK}\p{CJKSymbols}])/ $1 /g;
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#$text =~ s/ +/ /g;
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}
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}
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# Urdu support
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# https://en.wikipedia.org/wiki/Urdu_alphabet#Encoding_Urdu_in_Unicode
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if ($language eq 'ur') {
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$text =~ s{
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( (?: [\.\?!\x{06d4}] | \.\.+ )
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[\'\"\x{201e}\x{bb}\(\[\¿\¡\p{IsPf}]*
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)
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\s+
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( [\'\"\x{201e}\x{bb}\(\[\¿\¡\p{IsPi}]*
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[\x{0600}-\x{06ff}]
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)
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}{$1\n$2}gx;
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}
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# Urdu support
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# https://en.wikipedia.org/wiki/Urdu_alphabet#Encoding_Urdu_in_Unicode
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if ($language eq 'ur') {
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$text =~ s{
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( (?: [\.\?!\x{06d4}] | \.\.+ )
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[\'\"\x{201e}\x{bb}\(\[\¿\¡\p{IsPf}]*
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)
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\s+
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( [\'\"\x{201e}\x{bb}\(\[\¿\¡\p{IsPi}]*
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[\x{0600}-\x{06ff}]
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)
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}{$1\n$2}gx;
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}
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# Special punctuation cases are covered. Check all remaining periods.
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my $word;
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my $i;
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my @words = split(/\h/,$text);
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#print "NOW $text\n";
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#print "NOW $text\n";
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$text = "";
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for ($i=0;$i<(scalar(@words)-1);$i++) {
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#print "Checking $words[$i] $words[$i+1]\n";
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@ -211,19 +211,19 @@ sub preprocess {
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my $starting_punct = $2;
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if ($prefix && $NONBREAKING_PREFIX{$prefix} && $NONBREAKING_PREFIX{$prefix} == 1 && !$starting_punct) {
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# Not breaking;
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# print "NBP1 $words[$i] $words[$i+1]\n";
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## print "NBP1 $words[$i] $words[$i+1]\n";
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} elsif ($words[$i] =~ /(\.)[\p{IsUpper}\-]+(\.+)$/) {
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# Not breaking - upper case acronym
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# print "NBP2 $words[$i] $words[$i+1]\n";
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#print "NBP2 $words[$i] $words[$i+1]\n";
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} elsif ($LIST_ITEM
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&& ($i == 0 || substr($words[$i-1], -1) eq "\n")
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&& $words[$i] =~ /^\(?(([0-9]+)|([ivx]+)|([A-Za-z]))\)?\.$/) {
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#Maybe list item - non breaking
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# print "NBP3 $words[$i] $words[$i+1]\n";
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# Maybe list item - non breaking
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#print "NBP3 $words[$i] $words[$i+1]\n";
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} elsif($words[$i+1] =~ /^([ ]*[\'\"\(\[\¿\¡\p{IsPi}]*[ ]*[0-9$sentence_start])/) {
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# The next word has a bunch of initial quotes, maybe a
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# space, then either upper case or a number
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# print "MAYBE $words[$i] $words[$i+1]\n";
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#print "MAYBE $words[$i] $words[$i+1]\n";
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$words[$i] = $words[$i]."\n" unless ($prefix && $NONBREAKING_PREFIX{$prefix} && $NONBREAKING_PREFIX{$prefix} == 2 && !$starting_punct && ($words[$i+1] =~ /^[0-9]+/));
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# We always add a return for these, unless we have a
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# numeric non-breaker and a number start.
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