[Issue 11254] std.string.strip is not nothrow
http://d.puremagic.com/issues/show_bug.cgi?id=11254 monarchdo...@gmail.com changed: What|Removed |Added Status|NEW |RESOLVED CC||monarchdo...@gmail.com Resolution||INVALID --- Comment #1 from monarchdo...@gmail.com 2013-10-14 05:55:11 PDT --- (In reply to comment #0) > import std.string: strip; > void main() nothrow { > " hello ".strip; > } > > > > dmd 2.064beta gives: > > test.d(3): Error: 'std.string.strip!(immutable(char)).strip' is not nothrow > test.d(2): Error: function 'D main' is nothrow yet may throw > > > I don't know if this can be done. Often string functions need to decode UTF, > and this could raise exceptions. In most cases, or for ASCII strings, a strip > can't throw exceptions. > > If this can't be done then please close down this issue. strip is a unicode aware function, that can remove unicode whites, so it *must* decode. So even if "most of the time", it won't throw, in the generic case, it can. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 11254] std.string.strip is not nothrow
http://d.puremagic.com/issues/show_bug.cgi?id=11254 --- Comment #2 from bearophile_h...@eml.cc 2013-10-14 09:46:51 PDT --- (In reply to comment #1) > strip is a unicode aware function, that can remove unicode whites, so it > *must* > decode. So even if "most of the time", it won't throw, in the generic case, it > can. Some possible alternative solutions: - A strip-like function that works on ubyte[] (the return type of std.string.representation if you give it a string); - A compile-time switch for std.string.strip that compiles out the unicode-aware parts. - A std.ascii.astrip nothrow function designed to work only on ASCII strings/char[]. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 11254] std.string.strip is not nothrow
http://d.puremagic.com/issues/show_bug.cgi?id=11254 --- Comment #3 from monarchdo...@gmail.com 2013-10-14 11:50:50 PDT --- (In reply to comment #2) > (In reply to comment #1) > > > strip is a unicode aware function, that can remove unicode whites, so it > > *must* > > decode. So even if "most of the time", it won't throw, in the generic case, > > it > > can. > > Some possible alternative solutions: > - A strip-like function that works on ubyte[] (the return type of > std.string.representation if you give it a string); > - A compile-time switch for std.string.strip that compiles out the > unicode-aware parts. > - A std.ascii.astrip nothrow function designed to work only on ASCII > strings/char[]. You should try the new generic std.algorithm.strip: // import std.string, std.ascii, std.algorithm; void main(string[] args) nothrow pure { string s = " hello! "; s = cast(string)s.representation.strip!isWhite(); } // -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 11254] std.string.strip is not nothrow
http://d.puremagic.com/issues/show_bug.cgi?id=11254 Jonathan M Davis changed: What|Removed |Added CC||jmdavisp...@gmx.com --- Comment #4 from Jonathan M Davis 2013-10-14 19:41:32 PDT --- I think that we should probably move towards overloading string functions with ubyte[] so that they can have ASCII-specific versions, and more of those would be able to be nothrow. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---