[Issue 7674] New: regex replace requires escaped format

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7674

           Summary: regex replace requires escaped format
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: Jesse.K.Phillips+D at gmail.com
                CC: dmitry.olsh at gmail.com


--- Comment #0 from Jesse Phillips <Jesse.K.Phillips+D at gmail.com> 2012-03-08 14:10:44 PST ---
When using std.regex.replace the format parameter is also requiring to be a
valid regex. The below example is expected to pass

import std.regex;

void main() {
    auto str = "hello?";

    assert(str.replace(regex(r"\?", "g"), r"\?") == r"hello\?");
}

This should fail:

import std.regex;

void main() {
    auto str = "hello?";

    assert(str.replace(regex(r"\?", "g"), r"\\?") != r"hello\?");
}

Maybe I'm wrong on this, but the current requirement seems off.

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