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#include "expr-to-xml.hh"
#include "xml-writer.hh"
#include "nixexpr-ast.hh"
#include "aterm.hh"
namespace nix {
static XMLAttrs singletonAttrs(const string & name, const string & value)
{
XMLAttrs attrs;
attrs[name] = value;
return attrs;
}
static void printTermAsXML(Expr e, XMLWriter & doc, ATermList & context)
{
XMLAttrs attrs;
ATerm s;
int i;
Expr e2;
ATermList as, es, formals;
ATerm body, pos;
while (matchContext(e, es, e2)) {
e = e2;
for (ATermIterator i(es); i; ++i)
context = ATinsert(context, *i);
}
if (matchStr(e, s))
doc.writeEmptyElement("string", singletonAttrs("value", aterm2String(s)));
else if (matchPath(e, s))
doc.writeEmptyElement("path", singletonAttrs("value", aterm2String(s)));
else if (matchNull(e))
doc.writeEmptyElement("null");
else if (matchInt(e, i))
doc.writeEmptyElement("int", singletonAttrs("value", (format("%1%") % i).str()));
else if (e == eTrue)
doc.writeEmptyElement("bool", singletonAttrs("value", "true"));
else if (e == eFalse)
doc.writeEmptyElement("bool", singletonAttrs("value", "false"));
else if (matchAttrs(e, as)) {
XMLOpenElement _(doc, "attrs");
ATermMap attrs(128);
queryAllAttrs(e, attrs);
StringSet names;
for (ATermMap::const_iterator i = attrs.begin(); i != attrs.end(); ++i)
names.insert(aterm2String(i->key));
for (StringSet::iterator i = names.begin(); i != names.end(); ++i) {
XMLOpenElement _(doc, "attr", singletonAttrs("name", *i));
printTermAsXML(attrs.get(toATerm(*i)), doc, context);
}
}
else if (matchList(e, es)) {
XMLOpenElement _(doc, "list");
for (ATermIterator i(es); i; ++i)
printTermAsXML(*i, doc, context);
}
else if (matchFunction(e, formals, body, pos)) {
XMLOpenElement _(doc, "function");
for (ATermIterator i(formals); i; ++i) {
Expr name; ValidValues valids; ATerm dummy;
if (!matchFormal(*i, name, valids, dummy)) abort();
XMLOpenElement _(doc, "arg", singletonAttrs("name", aterm2String(name)));
ATermList valids2;
if (matchValidValues(valids, valids2)) {
for (ATermIterator j(valids2); j; ++j) {
XMLOpenElement _(doc, "value");
printTermAsXML(*j, doc, context);
}
}
}
}
else
doc.writeEmptyElement("unevaluated");
}
void printTermAsXML(Expr e, std::ostream & out, ATermList & context)
{
XMLWriter doc(true, out);
XMLOpenElement root(doc, "expr");
printTermAsXML(e, doc, context);
}
}
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