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consistency with modern trends and other ASR frameworks. git-svn-id: svn+ssh://svn.code.sf.net/p/cmusphinx/code/trunk/SphinxTrain@11327 94700074-3cef-4d97-a70e-9c8c206c02f5
155 lines
4.1 KiB
Perl
155 lines
4.1 KiB
Perl
# -*- cperl -*-
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## ====================================================================
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##
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## Copyright (c) 2007 Carnegie Mellon University. All rights
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## reserved.
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##
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## Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions
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## are met:
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##
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## 1. Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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##
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## 2. Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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##
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## This work was supported in part by funding from the Defense Advanced
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## Research Projects Agency and the National Science Foundation of the
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## United States of America, and the CMU Sphinx Speech Consortium.
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##
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## THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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## ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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## THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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## PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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## NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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##
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## ====================================================================
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##
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## Author: David Huggins-Daines
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##
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use strict;
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package SimpleConfig;
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require Exporter;
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require IO::File;
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use vars qw(@ISA @EXPORT);
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@ISA=qw(Exporter);
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@EXPORT=qw(parse_config);
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sub parse_config_one {
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my $file = shift;
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my ($key, $val, $continued_val, @values);
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local $_;
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while (<$file>) {
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chomp;
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if (defined($continued_val)) {
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s/^\s+//;
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s/\s+$//;
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if (/"((?:\"|[^"]+)*)"/
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or /'((?:\'|[^']+)*)'/) {
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$continued_val .= $1;
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}
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else {
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$continued_val .= " ". $_;
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$continued_val =~ s/\\$//;
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}
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unless (/\\$/) {
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push @values, $key => $continued_val;
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$continued_val = undef;
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}
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}
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else {
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if (/^\s*(\S+)\s*=\s*"((?:\"|[^"]+)*)"/
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or
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/^\s*(\S+)\s*=\s*'((?:\'|[^']+)*)'/
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or
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/^\s*(\S+)\s*=\s*([^\s\\]+)/) {
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$key = $1;
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$val = $2;
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if (/\\$/) {
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$continued_val = $val;
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}
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else {
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push @values, $key => $val;
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}
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}
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}
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}
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if (defined($continued_val)) {
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push @values, $key => $continued_val;
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}
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return @values;
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}
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sub parse_config {
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my @values;
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foreach my $file (@_) {
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my $fh = $file;
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unless (ref($file)) {
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$fh = IO::File->new($file, 'r')
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or die "Failed to open $file: $!";
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}
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push @values, parse_config_one($fh);
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}
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return @values;
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}
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1;
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__END__
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=head1 NAME
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SimpleConfig - Really simple configuration file parser
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=head1 SYNOPSIS
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use SimpleConfig;
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%vars = parse_config($somefile);
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=head1 DESCRIPTION
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This module implements a really simple configuration file parser. No
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object oriented gunk or stuff to install from CPAN. It exports one
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function, C<parse_config>, which parses one or more file or
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filehandles and returns any variable definitions of the form:
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key = value
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as a list of key/value pairs (such that you could assign it to a hash,
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as in the example above).
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Other things in the files passed to it are ignored. You can quote
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values (not keys) using single or double quotes, which cause any
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embedded quotes of the opposite type to be passed through directly.
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If that isn't enough you can escape them with backslashes.
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You can also split values across multiple lines using a trailing
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backslash, like this:
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list_of_stuff = foo \
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bar \
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baz
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Any leading or trailing whitespace will be skipped! So add quotes if
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you don't want that to happen.
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=head1 AUTHOR
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David Huggins-Daines <dhuggins@cs.cmu.edu>
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=cut
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