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Full Discussion: Perl: array, assigning multi-word sentences with quotes
Top Forums Shell Programming and Scripting Perl: array, assigning multi-word sentences with quotes Post 302232428 by drl on Thursday 4th of September 2008 12:03:16 PM
Old 09-04-2008
Hi.

This is another technique:
Code:
#!/usr/bin/perl

# @(#) p2       Demonstrate convenient preservation of quotes on strings.

use warnings;
use strict;

my($debug);
$debug = 0;
$debug = 1;

# Put all strings here on separate lines.
# Note that later the newline will be used as a separator

my($a) = qq(
"A or b"
"C and d"
'E and f'
);

print " scalar a is $a";

my(@a) = split("\n",$a);

print "\n";
for my $sentence ( @a ) {
  next if $sentence eq "";
  print " sentence is $sentence\n";
}

exit(0);

Producing:
Code:
% ./p2
 scalar a is
"A or b"
"C and d"
'E and f'

 sentence is "A or b"
 sentence is "C and d"
 sentence is 'E and f'

All the strings are placed into a scalar, with the separator being a newline, then the scalar is split into the array.

Because there is some processing, you could also place quotes around the strings later, saving some keystrokes on entry. However, then you would lose the flexibility of placing any characters of your choice around the strings -- I used both single and double quotes above, for example.

It is convenient if your sentences are short. If you had long sequences, you'd need to invent a continuation character to allow lines to be joined ... cheers, drl
 

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LEARN ABOUT DEBIAN

ucto

ucto(1) 						      General Commands Manual							   ucto(1)

NAME

       ucto - Unicode Tokenizer

SYNOPSYS

       ucto [[options]] [input-file] [[output-file]]

DESCRIPTION

       ucto ucto tokenizes text files: it separates words from punctuation, splits sentences (and optionally paragraphs), and finds paired quotes.
       Ucto is preconfigured with tokenisation rules for several languages.

OPTIONS

       -c configfile
	      read settings from a file

       -d value
	      set debug mode to 'value'

       -e value
	      set input encoding. (default UTF8)

       -f
	      disable filtering of special characters

       -L language
	       Automatically selects a configuration file by language code.  e.g. 'fr' will select the file  tokconfig-fr  from  the  installation
	      directory

       -l
	      Convert to all lowercase

       -u
	      Convert to all uppercase

       -n
	      Assume one sentence per line on input

       -m
	      Emit one sentence per line on output

       --passthru
	      Don't tokenize, but perform input decoding and simple token role detection

       -P
	      Disable Paragraph Detection

       -Q
	      Enable Quote Detection. (this is experimental and may lead to unexpected results)

       -S
	      Disable Sentence Detection

       -s <string>
	      Set End-of-sentence marker. (Default <utt>)

       -V
	      Show version information

       -v
	      set Verbose mode

       -x <DocId>
	      Output FoLiA XML, use the specified Document ID. (this disables usage of most other options: -nulPQvsS)

       -F
	      Read a FoLiA XML document, tokenize it, and output the modified doc. (this disables usage of most other options: -nulPQvsS)

BUGS

       likely

AUTHORS

       Maarten van Gompel proycon@anaproy.nl

       Ko van der Sloot Timbl@uvt.nl

								 2011 november 28							   ucto(1)
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