How can I do if then else in RegexPatternGroups? I've tried (?if then|else). Any ideas?
I am modifying the html states and have some custom script that could be inside of an html attribute's value. So if I encounter the string "[%" then I want to check for the ending string "%]" and allow quotes inside of the string, otherwise I want to match on anything but quotes ([^"]+).
Any help/suggestions appreciated.
Also, do you support non-capturing groups?
Hi Jon,
I'm sorry but our regex engine doesn't support alternations or non-capturing groups.
What you'd have to do is in the state for the attribute value, have a child state for your [% ... %] range. Then have a pattern that consumes all characters except for quotes and [ characters. That way, if a [ is in the value, the lexer will break and re-examine it to see if it is the start of a child state.
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