Re: Frontline report from the Desperate Fgrep Hacker
Sean McGrath wrote: > > [John Cowan] > >I happened to know that the element always appeared on a single > >line of the file: the start tag, the character data, the end tag. > SML-DEV. Bottom line: simple grepping of XML 1.0 > can get you burnt because of all the things that > can occur in cosher XML 1.0 documents that > a straight lexical analysis will misconstrue unless > prefixed by an XML parser. Made me thinking what an "xmlgrep" would need to do, and which additional parameters it would need: Even for SML, grep seems dangerous, consider <tag>I want the complete line</tag> vs. <tag>I want the complete line</tag> "xmlgrep" could search in a given set of elements for a regular expression. But how would the list of elements be specified (xpath? 2nd regexp?)? Which child elements are returned? All? None? configurable? Or could the problem be solved by preformatting XML/SML to a form where all elements get an extra line, whereas line breaks inside text content are replaced by a space? Best regards Stefan -- Stefan Haustein University of Dortmund Computer Science VIII www-ai.cs.uni-dortmund.de
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