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Re: puzzled about a regexp

2003-01-14 10:41:52
On Tue, 14 Jan 2003 06:27:31 -0500 (EST), dman(_at_)nomotek(_dot_)com wrote:
=> "Ruud H.G. van Tol" <rvtol(_at_)isolution(_dot_)nl> wrote:
=> > Doesn't that include whitespace in the regexp?
 
=> No. Line continuation markers allow for such formatting without
=> reading the whitespace into the buffer.
        <snip>
=>        Leading  whitespace on continued regular expression condi­
=>        tion lines  is  usually  ignored  (so  that  they  can  be
=>        indented),  but  not on continued condition lines that are
=>        evaluated according to the sh(1) substitution rules inside
=>        double quotes.

        IOW, ... ignored in simple variable definitions and
simple conditionals but *not* when using "* $ $VARIABLE" type
shell subtitutions in conditional lines? Yes?

        That brings to mind another question, should I be
concerned about "excessive" use of $VARIABLES with the system
demand of the resulting shell expansions?  I use $VARIABLES (and
therefore need to expand them) in the vast majority of my many
conditionals.

        TIA,

        - Don

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