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Re: Call for code samples!

by stefan k (Curate)
on Nov 15, 2001 at 14:56 UTC ( #125547=note: print w/replies, xml ) Need Help??

in reply to Call for code samples!

just going through some code of mine...
  • Say you got some variables stored in a hash: name=>value and whant to replace them in a text where they are used in a make-like form: $(VARIABLE)
    foreach (keys %global_variables) { $content =~ s/\$\($_\)/$global_variables{$_}/g; }
  • When you want to indent a part of text and calculated the indent already you might use:
    $content =~ s/\n/\n$indent /g;
  • Some really often used substitutions are the whitespace deletions: 1. All whitespaces: $line =~ s/\s+//g; 2. Only leading whitespaces: $line =~ s/^\s*//; 3. Only trailing whitespaces: $line =~ s/\s*$//;
  • Say you got a GUI (in my case it was Gtk) and want to display some messages. In the preview window though only the first line shall be displayed, marking that more is available:
    $text =~ s/\n.*/ [more\.\.\.]/s;
That's it for the moment. The rest of my regexp-substitutions is mostly boring ;-)

Update: Added the missing parens around VARIABLE

Regards... Stefan
you begin bashing the string with a +42 regexp of confusion

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