* Etags and regexps
@ 2019-07-15 14:46 Pascal Quesseveur
2019-07-20 9:48 ` Eli Zaretskii
0 siblings, 1 reply; 3+ messages in thread
From: Pascal Quesseveur @ 2019-07-15 14:46 UTC (permalink / raw)
To: help-gnu-emacs
Hello,
I am trying to set regexps to let etags recognize tags from Object
Pascal code. For ex. the following regexp;
/^[[:space:]]*type[[:space:]]+\([^ \t=]+\)/\1/
applied to a type declaration:
type MyType = class(TObject)
matches class MyType. I am now trying to match declarations on
multiple lines, for ex.:
type
MyType = class(TObject)
I have tried to put a new line in my regexp and use m modifier in
etags regexp but it doesn't work (emacs 24 & 26.2). When i add a m
modifier to the original regexp which doesn't contain newlines, it
doesn't work anymore.
So how are we supposed to use m modifier?
--
Pascal Quesseveur
pquessev@gmail.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Etags and regexps
2019-07-15 14:46 Etags and regexps Pascal Quesseveur
@ 2019-07-20 9:48 ` Eli Zaretskii
2019-07-22 9:46 ` Pascal Quesseveur
0 siblings, 1 reply; 3+ messages in thread
From: Eli Zaretskii @ 2019-07-20 9:48 UTC (permalink / raw)
To: help-gnu-emacs
> From: Pascal Quesseveur <pquessev@gmail.com>
> Date: Mon, 15 Jul 2019 16:46:39 +0200
>
> I am trying to set regexps to let etags recognize tags from Object
> Pascal code. For ex. the following regexp;
>
> /^[[:space:]]*type[[:space:]]+\([^ \t=]+\)/\1/
>
> applied to a type declaration:
>
> type MyType = class(TObject)
>
> matches class MyType. I am now trying to match declarations on
> multiple lines, for ex.:
>
> type
> MyType = class(TObject)
>
> I have tried to put a new line in my regexp and use m modifier in
> etags regexp but it doesn't work (emacs 24 & 26.2). When i add a m
> modifier to the original regexp which doesn't contain newlines, it
> doesn't work anymore.
>
> So how are we supposed to use m modifier?
The problem is with the leading "^" in your regexp: remove it, and
everything will work as you expect. Etags always matches the regexp
anchored, i.e. it prepends "^" to it, so that "^" confuses the regexp
engine.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-07-15 14:46 Etags and regexps Pascal Quesseveur
2019-07-20 9:48 ` Eli Zaretskii
2019-07-22 9:46 ` Pascal Quesseveur
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