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Added support for (?(DEFINE) blocks and updated the docs accordingly.

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Added support for ICU libraries which may be named icui18n.lib on some Win32 platforms.

[SVN r55267]
This commit is contained in:
John Maddock
2009-07-29 17:11:56 +00:00
parent 78f1066b1f
commit 66b633b417
39 changed files with 496 additions and 219 deletions
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doc/syntax_perl.qbk
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@ -545,6 +545,8 @@ executes /no-pattern/.
executes /no-pattern/.
* [^(?(R['N])yes-pattern|no-pattern)] Executes /yes-pattern/ if we are executing inside a recursion to sub-expression /N/, otherwise
executes /no-pattern/.
* [^(?(DEFINE)never-exectuted-pattern)] Defines a block of code that is never executed and matches no characters:
this is usually used to define one or more named sub-expressions which are refered to from elsewhere in the pattern.
[h4 Operator precedence]