http://d.puremagic.com/issues/show_bug.cgi?id=4069

           Summary: std.xml.Document.pretty saves empty elements with
                    spaces and line breaks
           Product: D
           Version: unspecified
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody@puremagic.com
        ReportedBy: r.sagitario@gmx.de


--- Comment #0 from Rainer Schuetze <r.sagitario@gmx.de> 2010-04-05 10:11:32 PDT ---
Test case:

import std.stdio;
import std.xml;
import std.string;

void main() {

    auto doc = new Document(new Tag("root"));
    doc ~= new Element("elem", "");
    string s = join(doc.pretty(1),"");
    writefln("doc: '%s'", s);

    auto xml = new Document(s);

    string t = xml.elements[0].text();

    writefln("elem: '%s'", t);
    assert(t == "");
}

outputs:

doc: '<root> <elem> </elem></root>'
elem: ' '
core.exception.AssertError@test(17): Assertion failure

This does not happen with non-empty elements or with Document.toString

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Rainer Schuetze <r.sagitario@gmx.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch, wrong-code


--- Comment #1 from Rainer Schuetze <r.sagitario@gmx.de> 2010-04-05 10:13:53 PDT ---
Here's a patch that switches to the short form of an empty element:

Index: xml.d ===================================================================
--- xml.d    (revision 1476)
+++ xml.d    (working copy)
@@ -887,7 +887,7 @@
             return buffer;
         }

-        override bool isEmptyXML() { return false; } /// Returns false always
+        override bool isEmptyXML() { return items.length == 0; }
     }
 }

The resulting output is:

doc: '<root> <elem /></root>'
elem: ''

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla@digitalmars.com
         Resolution|                            |FIXED


--- Comment #2 from Walter Bright <bugzilla@digitalmars.com> 2011-02-07 00:45:13 PST ---
https://github.com/D-Programming-Language/phobos/commit/b3ad939cf41adfefd33b16d2d91ca56d568cddac

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