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Mention there's no way to include ASCII NUL in regexps.

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sperber 2002-02-16 17:50:32 +00:00
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doc/scsh-manual/sre.tex
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@ -527,6 +527,11 @@ The rules for determining if an SRE is a simple, char-class SRE or a
more complex SRE form a little ``type system'' for SRE's. See the summary more complex SRE form a little ``type system'' for SRE's. See the summary
section preceding this one for a complete listing of these rules. section preceding this one for a complete listing of these rules.
\note{There is no way to include the ASCII NUL character in a
character set or search for it in any other way using regular
expression. This is because the POSIX regexp facility is based on
the C language which uses ASCII NUL to terminate strings.}
\paragraph{Case sensitivity} \paragraph{Case sensitivity}
There are three forms that control case sensitivity: There are three forms that control case sensitivity: