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Full Discussion: How to remove /*...*/ ?
Top Forums UNIX for Beginners Questions & Answers How to remove /*...*/ ? Post 303032531 by bakunin on Tuesday 19th of March 2019 07:12:17 PM
Old 03-19-2019
Quote:
Originally Posted by MadeInGermany
This is a case for a mimimum match.
You are right: non-greedy matching takes care of a few cases. Still, what i said about regexps being unable to parse still stands. For instance, your perl-program would have problems with:

Code:
char foo[3]="/*"; char bar[3]="*/"; /* comment */

I admit, this (and some more cases i could cite) are fringe. Maybe the thread-O/P will never encounter any of these. But again, it is - in a strict sense - impossible to overcome all of these problems (some of them, yes, but not all) because a regexp engine cannot work as a parser.

I hope this helps.

bakunin
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Parser::Style::Tree(3pm)				User Contributed Perl Documentation				  Parser::Style::Tree(3pm)

NAME
XML::Parser::Style::Tree - Tree style parser SYNOPSIS
use XML::Parser; my $p = XML::Parser->new(Style => 'Tree'); my $tree = $p->parsefile('foo.xml'); DESCRIPTION
This module implements XML::Parser's Tree style parser. When parsing a document, "parse()" will return a parse tree for the document. Each node in the tree takes the form of a tag, content pair. Text nodes are represented with a pseudo-tag of "0" and the string that is their content. For elements, the content is an array reference. The first item in the array is a (possibly empty) hash reference containing attributes. The remainder of the array is a sequence of tag- content pairs representing the content of the element. So for example the result of parsing: <foo><head id="a">Hello <em>there</em></head><bar>Howdy<ref/></bar>do</foo> would be: Tag Content ================================================================== [foo, [{}, head, [{id => "a"}, 0, "Hello ", em, [{}, 0, "there"]], bar, [ {}, 0, "Howdy", ref, [{}]], 0, "do" ] ] The root document "foo", has 3 children: a "head" element, a "bar" element and the text "do". After the empty attribute hash, these are represented in it's contents by 3 tag-content pairs. perl v5.14.2 2011-11-15 Parser::Style::Tree(3pm)
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