regex with literal (ie automatically replace '(' with '\(', etc) )

[Dmitry Olshansky]

30-May-2013 14:24, Timothee Cour пишет:
>  > According to this: http://dlang.org/phobos/std___regex.html#.replace
> <http://dlang.org/phobos/std_regex.html#.replace> you can use the same
> escape sequences for both (\c -> c in the replacement string).
>
> Your suggestion does not work; try for yourself by replacing the $$ by
> \$ in my code. Is that a bug in std.regex' doc?
> eg:
> replace("",regex(``),`\$`);
> => invalid format string in regex replace
>

Indeed replace format string is a different beast. I can't recall if I 
stolen the original std.regex or devised this $$ myself.

By any rate replace(fmt, `\$`, "$$") would work or the same with replace 
from std.string. So I feel it's a bit of stretch to include a function 
for such a narrow case.

> However everything works fine with $$, see my code above.
>
> On Thu, May 30, 2013 at 1:14 AM, Diggory <diggsey at googlemail.com
> <mailto:diggsey at googlemail.com>> wrote:
>
>     On Thursday, 30 May 2013 at 06:50:06 UTC, Timothee Cour wrote:
>
>         ok, here it is:
>
>         https://github.com/__timotheecour/dtools/blob/__master/dtools/util/util.d#L78
>         <https://github.com/timotheecour/dtools/blob/master/dtools/util/util.d#L78>
>         simplified implementation and added missing escape symbols. Any
>         symbol
>         missing?
>         I was basing myself based on
>         http://dlang.org/phobos/std___regex.html
>         <http://dlang.org/phobos/std_regex.html>, table
>         entry '\c where c is one of', but that was incomplete. I'm also
>         noting that
>         table entry 'any character except' is also incomplete.
>
>             Technically any working "escapeRegex" would also function as
>             a valid
>
>         "escapeRegexReplace", although it might be slightly faster to have a
>         specialised one.
>
>         not sure, because they escape differently (\$ vs $$).
>
>
>     According to this: http://dlang.org/phobos/std___regex.html#.replace
>     <http://dlang.org/phobos/std_regex.html#.replace> you can use the
>     same escape sequences for both (\c -> c in the replacement string).
>
>


-- 
Dmitry Olshansky