/**
We treat the property value section as a list value, which is separated by ',' or ' '
*/
func (parser *Parser) ParsePropertyValue(parentRuleSet *ast.RuleSet, property *ast.Property) *ast.List {
debug("ParsePropertyValue")
// var tok = parser.peek()
var list = ast.NewSpaceSepList()
var tok = parser.peek()
for tok.Type != ast.T_SEMICOLON && tok.Type != ast.T_BRACE_CLOSE {
var sublist = parser.ParseList()
if sublist != nil {
list.Append(sublist)
debug("ParsePropertyValue list: %+v", list)
} else {
break
}
tok = parser.peek()
}
return list
}
func (parser *Parser) ParseSpaceSepList() ast.Expr {
debug("ParseSpaceSepList at %d", parser.Pos)
var list = ast.NewSpaceSepList()
list.Separator = " "
if tok := parser.accept(ast.T_PAREN_OPEN); tok != nil {
if sublist := parser.ParseCommaSepList(); sublist != nil {
list.Append(sublist)
}
parser.expect(ast.T_PAREN_CLOSE)
}
var tok = parser.peek()
for tok.Type != ast.T_SEMICOLON && tok.Type != ast.T_BRACE_CLOSE {
var subexpr = parser.ParseExpr(true)
if subexpr != nil {
debug("Parsed Expr: %+v", subexpr)
list.Append(subexpr)
} else {
break
}
tok = parser.peek()
if tok.Type == ast.T_COMMA {
break
}
}
debug("Returning space-sep list: %+v", list)
if list.Len() == 0 {
return nil
} else if list.Len() == 1 {
return list.Exprs[0]
} else if list.Len() > 1 {
return list
}
return nil
}