105 lines
3.3 KiB
Perl
105 lines
3.3 KiB
Perl
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#!/usr/bin/env perl
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# Copyright 2010-2012 Microsoft Corporation Johns Hopkins University (Author: Daniel Povey)
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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# WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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# MERCHANTABLITY OR NON-INFRINGEMENT.
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# See the Apache 2 License for the specific language governing permissions and
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# limitations under the License.
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$ignore_oov = 0;
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for($x = 0; $x < 2; $x++) {
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if ($ARGV[0] eq "--map-oov") {
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shift @ARGV;
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$map_oov = shift @ARGV;
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if ($map_oov eq "-f" || $map_oov =~ m/words\.txt$/ || $map_oov eq "") {
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# disallow '-f', the empty string and anything ending in words.txt as the
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# OOV symbol because these are likely command-line errors.
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die "the --map-oov option requires an argument";
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}
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}
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if ($ARGV[0] eq "-f") {
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shift @ARGV;
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$field_spec = shift @ARGV;
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if ($field_spec =~ m/^\d+$/) {
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$field_begin = $field_spec - 1; $field_end = $field_spec - 1;
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}
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if ($field_spec =~ m/^(\d*)[-:](\d*)/) { # accept e.g. 1:10 as a courtesty (properly, 1-10)
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if ($1 ne "") {
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$field_begin = $1 - 1; # Change to zero-based indexing.
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}
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if ($2 ne "") {
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$field_end = $2 - 1; # Change to zero-based indexing.
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}
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}
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if (!defined $field_begin && !defined $field_end) {
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die "Bad argument to -f option: $field_spec";
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}
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}
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}
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$symtab = shift @ARGV;
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if (!defined $symtab) {
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print STDERR "Usage: sym2int.pl [options] symtab [input transcriptions] > output transcriptions\n" .
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"options: [--map-oov <oov-symbol> ] [-f <field-range> ]\n" .
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"note: <field-range> can look like 4-5, or 4-, or 5-, or 1.\n";
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}
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open(F, "<$symtab") || die "Error opening symbol table file $symtab";
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while(<F>) {
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@A = split(" ", $_);
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@A == 2 || die "bad line in symbol table file: $_";
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$sym2int{$A[0]} = $A[1] + 0;
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}
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if (defined $map_oov && $map_oov !~ m/^\d+$/) { # not numeric-> look it up
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if (!defined $sym2int{$map_oov}) { die "OOV symbol $map_oov not defined."; }
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$map_oov = $sym2int{$map_oov};
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}
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$num_warning = 0;
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$max_warning = 20;
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while (<>) {
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@A = split(" ", $_);
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@B = ();
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for ($n = 0; $n < @A; $n++) {
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$a = $A[$n];
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if ( (!defined $field_begin || $n >= $field_begin)
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&& (!defined $field_end || $n <= $field_end)) {
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$i = $sym2int{$a};
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if (!defined ($i)) {
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if (defined $map_oov) {
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if ($num_warning++ < $max_warning) {
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print STDERR "sym2int.pl: replacing $a with $map_oov\n";
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if ($num_warning == $max_warning) {
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print STDERR "sym2int.pl: not warning for OOVs any more times\n";
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}
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}
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$i = $map_oov;
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} else {
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$pos = $n+1;
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die "sym2int.pl: undefined symbol $a (in position $pos)\n";
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}
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}
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$a = $i;
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}
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push @B, $a;
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}
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print join(" ", @B);
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print "\n";
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}
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if ($num_warning > 0) {
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print STDERR "** Replaced $num_warning instances of OOVs with $map_oov\n";
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}
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exit(0);
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