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Ampersands and XHTML

A regular expression to replace all ampersands (&) in a text that are not part of an entity:

t = t.gsub(/&(?!#?\w+;)/, '&')

Language is ruby. The regexp feature used is called a negative lookahead.

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Post a comment — Trackback URI RSS 2.0 feed for these comments This entry (permalink) was posted on Sunday, May 25, 2008, at 2:47 pm by Michael, tagged with , , , and categorized in English posts, Shortcuts.
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