Re: Print column of search result

[Shigio YAMAGUCHI]

Thank you. I understood.

> Is there some easy way to extract this information directly from the DB?

Since Global is a line oriented tool like grep(1), its DB don't have column
information.

> What I’d like to see is an output like this:
>
> $ machine-readable-global -r arg
> 6:8,13
> 6:15,20

So, you have to write a program to know column information.

[global's output]
arg                 6 multiple-users.c  func(arg(), arg());

[program]
pattern = "\\barg\\b"           // \\b matches to a word boundary
line = read a line at 6 in multiple-users.c.

regex_t reg;
regmatch_t m[100];
regcomp(&reg, pattern, ...);
regexec(&reg, line, 100, &m, ...);

As the result, the 'm' array has column information.

Regards
Shigio


2015-08-21 0:18 GMT+09:00 Jonas H. <jo...@lophus.org>:

>
> > On 20 Aug 2015, at 15:23, Shigio YAMAGUCHI <shi...@gnu.org> wrote:
> >
> > I don't know that meaning well.
> > Could you please explain it by example?
>
> int arg() { return 42; }
>
> void func(int x) { }
>
> int main() {
>   func(arg(), arg());
> }
>
> $ global -r -x arg
> arg                 6 multiple-users.c  func(arg(), arg());
>
> OK so this actually even worse for script usage than expected:
>
> * The usage of `arg` is displayed only once
> * The code context shown doesn’t start at the place/column `arg` is used
> but somewhere else
>
> What I’d like to see is an output like this:
>
> $ machine-readable-global -r arg
> 6:8,13
> 6:15,20
>
> These are the line, start and end column numbers.
>
> Is there some easy way to extract this information directly from the DB?
>
> Thanks
> Jonas
> _______________________________________________
> Help-global mailing list
> Help-global@gnu.org
> https://lists.gnu.org/mailman/listinfo/help-global
>



-- 
Shigio YAMAGUCHI <shi...@gnu.org>
PGP fingerprint: D1CB 0B89 B346 4AB6 5663  C4B6 3CA5 BBB3 57BE DDA3

_______________________________________________
Help-global mailing list
Help-global@gnu.org
https://lists.gnu.org/mailman/listinfo/help-global