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digitalmars.D.bugs - [Issue 3371] New: regexp behavior in console and win32 are different

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3371

           Summary: regexp behavior in console and win32 are different
           Product: D
           Version: 2.032
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: ldmc yahoo.com


--- Comment #0 from bcosca <ldmc yahoo.com> 2009-10-07 05:06:50 PDT ---
my win32 program has been driving me nuts until I realized that the following
code:

/* --- console code --- */
import std.regexp;
import std.stdio;

void main() {
    auto r=search("abcdef","c");
    writefln(r[0]);
}
/* --- end of console code --- */

outputs "c" on the console. but the following win32 equivalent:

/* --- windows code --- */
import core.runtime;
import std.regexp;
import std.c.windows.windows;

extern(Windows) void WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR
lpCmdLine,int nCmdShow) {
    void exceptionHandler(Throwable e) {
        throw e;
    }
    try {
        Runtime.initialize(&exceptionHandler);
        auto r=search("abcdef","c");
        MessageBoxA(cast(HANDLE)0,cast(char*)r[0],"Alert",0);
        Runtime.terminate(&exceptionHandler);
    }
    catch(Object o) {
        MessageBoxA(cast(HANDLE)0,cast(LPSTR)o.toString(),"Alert",0);
    }
}
/* --- end of windows code --- */

results in "cdef"! also, the compiled win32 program - without the exception
handling code - causes windows to crash.

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parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=3371


Jarrett Billingsley <jarrett.billingsley gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |jarrett.billingsley gmail.c
                   |                            |om
         Resolution|                            |INVALID


--- Comment #1 from Jarrett Billingsley <jarrett.billingsley gmail.com>
2009-10-07 06:16:54 PDT ---
Uh, no. Windows uses 0-terminated strings, D does not. All you're seeing when
you output the result of the search with the message box is Windows stupidly
reading until it hits a nul character (which, thankfully, D inserts at the end
of string literals, or else you'd probably be getting a segfault here). You
should be using toStringz to convert any D strings to C strings.

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