What regex would check a line for a word that is not followed by a ( character? I tried (\w+)(\?!\() but it doesn't work, and (\w+)[^\(] matches anything by treating the last letter as the [^\(] part. I am using the D programming language.
Examples of things that should match:
It should match the asdf in the following:
asdf blah
asdf.beef
(asdf)
but not in these:
asdf(blah)
However, in asdf(blah), the blah would be matched. Also in asdf blah and asdf.beef, the blah and beef would also be matched.
I don't know anything about D's capabilities. If it supports the perl regexp language, you can do this:
\w+\b(?!\()
The (?!xxx) construct is used for a zero-width negative lookahead. You need the \b word boundary to keep it from matching all but the last letter of a word that's followed by a paren.
EDIT: I have tweaked M42's good idea below so that it works in D. Try this
(\w+)\b([^\(]|$)
The first capture group should contain the words you're interested in.