From: Jack Dempsey <dempsejn@...>
Date: 2002-01-12T13:01:55+09:00
Subject: RE: Another suggestion for FreeRIDE

Here's the code for that: easy, but it'll do the subs...i left the
outputting of "require english.rb" to the end user...

#!/usr/bin/ruby

text = 'this is some text that uses variables like $!, $;, $=, and $0.'

hash_map = {
        '$!'  => '$ERROR_INFO',
        '$@'  => '$ERROR_POSITION',
        '$"'  => '$LOADED_FEATURES',
        '$;'  => '$FS',
        '$;'  => '$FIELD_SEPARATOR',
        '$,'  => '$OFS',
        '$,'  => '$OUTPUT_FIELD_SEPARATOR',
        '$/'  => '$RS',
        '$/'  => '$INPUT_RECORD_SEPARATOR',
        '$\\'  => '$ORS',
        '$\\'  => '$OUPUT_RECORD_SEPARATOR',
        '$.'  => '$INPUT_LINE_NUMBER',
        '$.'  => '$NR',
        '$_'  => '$LAST_READ_LINE',
        '$>'  => '$DEFAULT_OUTPUT',
        '$<'  => '$DEFAULT_INPUT',
        '$$'  => '$PID',
        '$$'  => '$PROCESS_ID',
        '$?'  => '$CHILD_STATUS',
        '$~'  => '$LAST_MATCH_INFO',
        '$='  => '$IGNORECASE',
        '$0'  => '$PROGRAM_NAME',
        '$*'  => '$ARGV',
        '$&'  => '$MATCH',
        '$`'  => '$PREMATCH',
        "$'"  => '$POSTMATCH',
        '$+'  => '$LAST_PAREN_MATCH'
}

puts text
hash_map.each { |k,v|
        text.gsub!(Regexp.escape(k),v)
}
puts text


Jack

-----Original Message-----
From: Phil Tomson [mailto:ptkwt@shell1.aracnet.com]
Sent: Friday, January 11, 2002 10:26 PM
To: ruby-talk ML; undisclosed-recipients:
Subject: Another suggestion for FreeRIDE


Based on some discussions over at comp.lang.python...

Someone raised the issue of Ruby's borrowing the predefined variables like
$:, $!, $? and their ilk from Perl.  I suggested that you can require
english.rb so that you can use more comprehensible names for these
variables.  The Python person objected saying that he didn't like the fact
that someone else might use the unreadable ones in code that he might have
to read.

Which gave me an idea:  What if you have an optional setting in FreeRIDE
so that if you read in a file with the unreadable predefined variables they
get
automatically replaced with their equivilents defined in english.rb (and
the line: 'require "english.rb"' get's appended to the top of the file).
That way if you don't want to deal with looking up the various unreadable
(incomprehensible) predefined vars.

Phil