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From: Lorenzo Bettini (bettini_at_[hidden])
Date: 2007-04-29 06:17:16
Hi
is there a way to access the subexpressions in a tree-like manner?
For instance, suppose I have this regular expression
((").*(\2))
that matches against this string
test"ooo"foo
the results are
prefix: test
what[0]: "ooo"
what[1]: "ooo"
length: 5
what[2]: "
length: 1
what[3]: "
length: 1
suffix: foo
I need to format the matched part with tags, say, like this
<matched>
<sub>"</sub>
ooo
<sub>"</sub>
</matched>
but in order to do this, when I inspect what[1], I'd need to know that
it has two subexpressions, while I cannot know that what[2] and what[3]
are indeed subexpressions of what[1]...
That is to say, subexpressions are flattened.
thanks in advance
Lorenzo
-- Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze ICQ# lbetto, 16080134 (GNU/Linux User # 158233) HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com BLOGS: http://tronprog.blogspot.com http://longlivemusic.blogspot.com http://www.gnu.org/software/src-highlite http://www.gnu.org/software/gengetopt http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net
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