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digitalmars.D.bugs - [Issue 12273] New: 'dmd -color' flag to colorize error/warning messages

reply d-bugmail puremagic.com writes:
https://d.puremagic.com/issues/show_bug.cgi?id=12273

           Summary: 'dmd -color' flag to colorize error/warning messages
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: timothee.cour2 gmail.com


--- Comment #0 from Timothee Cour <timothee.cour2 gmail.com> 2014-02-27
12:26:50 PST ---
clang and many other compilers have colorized error messages, it improves a lot
readability such as pinpointing where the error is etc. I suggest having 'dmd
-color' flag to colorize error/warning messages as well.

As we've seen with the recent introduction of '-vcolumns' flag, simple things
like this improve quite a bit the experience. 

This is trivial to implement on posix with terminal codes (I'm using it myself
for my own logging), and should be doable on windows as well
(SetConsoleTextAttribute?).

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next sibling parent d-bugmail puremagic.com writes:
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Vladimir Panteleev <thecybershadow gmail.com> changed:

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--- Comment #1 from Vladimir Panteleev <thecybershadow gmail.com> 2014-02-27
22:28:50 EET ---
I've done this for myself as a filter program:
http://blog.thecybershadow.net/2013/07/27/colorize-your-compilers-output/

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Andrej Mitrovic <andrej.mitrovich gmail.com> changed:

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--- Comment #2 from Andrej Mitrovic <andrej.mitrovich gmail.com> 2014-02-27
12:37:25 PST ---
Seems like something that should or could be done in RDMD, especially since
I've seen a few colorizing console libraries implemented in D.

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Walter Bright <bugzilla digitalmars.com> changed:

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--- Comment #3 from Walter Bright <bugzilla digitalmars.com> 2014-02-27
13:03:22 PST ---
It's a good idea.

Note to implementer: You'd have to check to see if the output stream is a file
or a tty, and not do the colorizing for the file.

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Timothee Cour <timothee.cour2 gmail.com> changed:

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--- Comment #4 from Timothee Cour <timothee.cour2 gmail.com> 2014-02-27
13:06:33 PST ---
Using a postprocessor seems fragile/ambiguous. 

Come to think of it probably the most flexible solution would be to have a flag
to output with markup (json for example), that can later be used by tools to
print as html/terminal color codes/etc.

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Nick Sabalausky <cbkbbejeap mailinator.com> changed:

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--- Comment #5 from Nick Sabalausky <cbkbbejeap mailinator.com> 2014-02-28
14:32:45 PST ---
Instead of a flag, wouldn't it be better to just do what the unixy tools do and
automatically colorize if-and-only-if it detects it's outputting to an
interactive shell? (Not sure whether that's doable on Windows though.)

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