• Aquiles (20/20) Nov 18 2012 Hello,
• Dmitry Olshansky (19/28) Nov 19 2012 See the bug:

"Aquiles" <aquiles.a.lopez gmail.com> writes:

Hello,

While instantiating a floating point regex using 
ctRegex!"\\b[-+]?([0-9]*\\.[0-9]+|[0-9]+)\\B", I got a compiler 
error (see below.) The offending character seems to be '|' and 
when escaped it compiles.

I can reproduce it with a simpler regex:

assert ( match("A", ctRegex!"A|B") );
assert ( match("A", ctRegex!r"A|B") );

Any ideas on how to make (A|B) type regex's using std.regex?

------------------------------------------------------------------
/usr/include/dmd/phobos/std/regex.d(1150): Error: 
assert(this.ir[cast(ulong)orStart].code() == cast(IR)129u) failed
/usr/include/dmd/phobos/std/regex.d(876):        called from 
here: this.parseRegex()
/usr/include/dmd/phobos/std/regex.d(6459):        called from 
here: parser.this(pattern,flags)
/usr/include/dmd/phobos/std/regex.d(6443):        called from 
here: regexImpl(pattern,flags)
/usr/include/dmd/phobos/std/regex.d(6468):        called from 
here: regex("\\b[-+]?([0-9]*\\.[0-9]+|[0-9]+)\\B",[])

Dmitry Olshansky <dmitry.olsh gmail.com> writes:

11/19/2012 11:55 AM, Aquiles пишет:
 Hello,

 While instantiating a floating point regex using
 ctRegex!"\\b[-+]?([0-9]*\\.[0-9]+|[0-9]+)\\B", I got a compiler error
 (see below.) The offending character seems to be '|' and when escaped it
 compiles.

 I can reproduce it with a simpler regex:

 assert ( match("A", ctRegex!"A|B") );
 assert ( match("A", ctRegex!r"A|B") );

See the bug:
http://d.puremagic.com/issues/show_bug.cgi?id=7440

The main cause was a compiler bug and is fixed in the upstream. Now the 
only piece left is this tiny problem in the standard library:

http://d.puremagic.com/issues/show_bug.cgi?id=8349

The root of problem is that ctRegex is not throughly tested at the 
moment (still takes too much time to compile) and certain changes to the 
standard library broke it silently.

There is a pull to just fix it:
https://github.com/D-Programming-Language/phobos/pull/936

And another that reworks the whole std.algorithm.move more properly and 
fixes it:
https://github.com/D-Programming-Language/phobos/pull/923

That should be the up to date status on this.

Anyway I'm making sure it works as expected in v2.061 when it's out.

 Any ideas on how to make (A|B) type regex's using std.regex?

For the moment use run-time version that is simply regex not ctRegex.


-- 
Dmitry Olshansky