> This doesn't work. groff.info says about 'XXX'YYY' and other > operators: > > Note that these operators can't be combined with other operators > like `:' or `&'; only a leading `!' (without whitespace between the > exclamation mark and the operator) can be used to negate the > result.
Oh, well... I read that paragraph at the end of the operator's section, but I failed to connect this information to the whole list of operators. Now that I reread it, it's clear why it doesn't work the way I expected it to work. [...] >> That works as expected, but there has to be an obvious and easy >> solution without the additional number register. > > Not that I'm aware of. Note, however, if you have a lot of such > comparisons, you could do the following: > > .ds str1 bar > . > .nr nr1 5 > .ds str1-foo \" > .ds str1-bar \" > .ds str1-baz \" > . > .if d str1-\*[str1] \ > . if (\n[nr1] == 5 ) \ > . tm okay Interesting solution, indeed! - It didn't solve my problem though, because I just posted an oversimplified version of it to explain the general problem I had - although with the help of your solution I was able to finally solve my problem, too. Thank you very much for your help! A question regarding to coding style: Which is considered the "better" way to compare numbers, using "=" or "=="? Best regards Ralph
