From: Christopher Causer <chy.causer@...>
Date: 2008-02-27T00:23:55+09:00
Subject: Multiple substitutions in one pass

I have a long document which I am trying to parse. I am coming unstuck
trying to speed it up and get all the substitutions out the way quickly.
I have a hash array of original and new things to substitute, and it
works. However, I'm sure there is a more efficient way of doing things.
RegExp has a union method, but that doesn't seem to handle string
capture within matches.

One final thing is that I would like this sub to throw something if no
substitutions are performed on the str.


--------------------------------------------------
def makeSubs(str)
  subCurlyArray={/section%LCURL%(\d+)(.*?)%RCURL%\1/ => "\n"+'---+\2',
    /subsection%LCURL%(\d+)(.*?)%RCURL%\1/ => "\n"+'---++\2',
    /subsubsection%LCURL%(\d+)(.*?)%RCURL%\1/ => "\n"+'---+++\2',
    /emph%LCURL%(\d+)(.*?)%RCURL%\1/ => '<em>\2</em>',
    /includegraphics\[(.*)\]%LCURL%(\d+)(.*?)%RCURL%\1/ =>'IMAGE <img
src="\3" \2> ENDIMAGE',
    /texttt%LCURL%(\d+)(.*?)%RCURL%\1/ => '<verbatim>\2 </verbatim>',
    /code%LCURL%(\d+)(.*?)%RCURL%\1/ => '<verbatim>\2</verbatim>',
    /textbf%LCURL%(\d+)(.*?)%RCURL%\1/ => '*\2*',
    /textit%LCURL%(\d+)(.*?)%RCURL%\1/ => '_\2_',
    }

  subArray.each do  |orig, new|
    str.gsub!(orig, new)
  else


  return str

end
---------------------------------------------------
Thank you
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