Parsing fails when URL is used

[rgrewe]

Hi! :-) I recently found a bug when using a URL within the values. Example: go run cmd/j/main.go --verbose scheme: http, url: http://test.de:4242

This fails with:

Input: scheme: http, url: http://test.de:4242
Setting key scheme
Detected object, wrapping in { and }
Setting key 
Parsing sub-object
Setting key scheme
Parse value: http
Setting key url
Parse value: http:
Sub-object done
Expected '}' but found { at line 1 col 41
{scheme: http, url: http://test.de:4242}
........................................
exit status 1

The problem seems to be the removement of comments. In my case // is no comment. I tried to understand your code and created a patch, that currently works for me, but I am sure you would create a better patch. I am also no GO expert. :-)

diff --git a/parse.go b/parse.go
index 1cd2c71..6d6ee7b 100644
--- a/parse.go
+++ b/parse.go
@@ -110,6 +110,16 @@ func (d *Document) back() {
        d.pos -= d.lastWidth
 }
 
+// before returns the previous rune without moving the position backward.
+func (d *Document) before() rune {
+       if d.pos < 2 {
+               return -1
+       }
+
+       return rune(d.expression[d.pos-2])
+}
+
+
 // peek returns the next rune without moving the position forward.
 func (d *Document) peek() rune {
        if d.pos >= uint(len(d.expression)) {
@@ -156,6 +166,10 @@ func (d *Document) skipWhitespace() {
 
 func (d *Document) skipComments(r rune) bool {
        if r == '/' && d.peek() == '/' {
+                if d.before() == ':'{
+                    d.next()
+                    return false
+                }
                for {
                        r = d.next()
                        if r == -1 || r == '\n' {

The original problem comes with restish, but I thought it belongs here at this place.

Thank you very much.