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authorEelco Dolstra <e.dolstra@tudelft.nl>2006-08-16 10:32:30 +0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2006-08-16 10:32:30 +0000
commit18e4ac0fc6bd1bc01d92d011e4629cacc3bec016 (patch)
treed9dccd46943c3d68595a2fc45f9ca77be776dc67 /src/libutil/xml-writer.cc
parentfe101fa7851c3eccb79441ed7f5805e13934254f (diff)
* `nix-instantiate --{eval|parse}-only --xml': print an XML
representation instead of an ATerm. * Indent XML output.
Diffstat (limited to 'src/libutil/xml-writer.cc')
-rw-r--r--src/libutil/xml-writer.cc17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/libutil/xml-writer.cc b/src/libutil/xml-writer.cc
index e5f0d9455..cd37dff56 100644
--- a/src/libutil/xml-writer.cc
+++ b/src/libutil/xml-writer.cc
@@ -3,8 +3,8 @@
#include "xml-writer.hh"
-XMLWriter::XMLWriter(ostream & output)
- : output(output)
+XMLWriter::XMLWriter(bool indent, ostream & output)
+ : output(output), indent(indent)
{
output << "<?xml version='1.0' encoding='utf-8'?>\n";
closed = false;
@@ -25,13 +25,22 @@ void XMLWriter::close()
}
+void XMLWriter::indent_(unsigned int depth)
+{
+ if (!indent) return;
+ output << string(depth * 2, ' ');
+}
+
+
void XMLWriter::openElement(const string & name,
const XMLAttrs & attrs)
{
assert(!closed);
+ indent_(pendingElems.size());
output << "<" << name;
writeAttrs(attrs);
output << ">";
+ if (indent) output << "\n";
pendingElems.push_back(name);
}
@@ -39,7 +48,9 @@ void XMLWriter::openElement(const string & name,
void XMLWriter::closeElement()
{
assert(!pendingElems.empty());
+ indent_(pendingElems.size() - 1);
output << "</" << pendingElems.back() << ">";
+ if (indent) output << "\n";
pendingElems.pop_back();
if (pendingElems.empty()) closed = true;
}
@@ -49,9 +60,11 @@ void XMLWriter::writeEmptyElement(const string & name,
const XMLAttrs & attrs)
{
assert(!closed);
+ indent_(pendingElems.size());
output << "<" << name;
writeAttrs(attrs);
output << " />";
+ if (indent) output << "\n";
}