On Wed, Jun 04, 2008 at 03:21:08PM -0400, [EMAIL PROTECTED] wrote:
>
> Using nix-instantiate with --xml works great
> except that boolean types like:
>
> ttyBackgrounds = {
> enable = true;
> };
>
> get translated into XML as:
> <attr name="ttyBackgrounds">
> <unevaluated />
> </attr>
>
> regardless of the actual value. Is this the normal behavior or a bug?
Well, I fixed this using the following small change to
src/libexpr/expr-to-xml.cc (this is nix-0.12pre11869):
48a49
> ATerm t1;
67,72c68,69
< else if (e == eTrue)
< doc.writeEmptyElement("bool", singletonAttrs("value",
"true"));
<
< else if (e == eFalse)
< doc.writeEmptyElement("bool", singletonAttrs("value",
"false"));
<
---
> else if (matchVar(e,t1))
> doc.writeEmptyElement("bool", singletonAttrs("value",
> aterm2String(t1)));
I really don't know if this is appropriate or correct but it generates
the expected XML (<bool value="false"/> or <bool value="true"/>).
I am most worried that matchVar is too general but matchBool doesn't
appear to work as boolean types are apparently showing up as 'Var'? I
don't know if this holds across all cases.
Can anyone tell me if this is the right fix or not?
thank you,
James Unger
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