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4 years ago
var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var FUNCTION = TYPE.Function;
var COLON = TYPE.Colon;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
function consumeRaw() {
return this.createSingleNodeList(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
function parentheses() {
this.scanner.skipSC();
if (this.scanner.tokenType === IDENT &&
this.lookupNonWSType(1) === COLON) {
return this.createSingleNodeList(
this.Declaration()
);
}
return readSequence.call(this);
}
function readSequence() {
var children = this.createList();
var space = null;
var child;
this.scanner.skipSC();
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE:
space = this.WhiteSpace();
continue;
case COMMENT:
this.scanner.next();
continue;
case FUNCTION:
child = this.Function(consumeRaw, this.scope.AtrulePrelude);
break;
case IDENT:
child = this.Identifier();
break;
case LEFTPARENTHESIS:
child = this.Parentheses(parentheses, this.scope.AtrulePrelude);
break;
default:
break scan;
}
if (space !== null) {
children.push(space);
space = null;
}
children.push(child);
}
return children;
}
module.exports = {
parse: {
prelude: function() {
var children = readSequence.call(this);
if (this.getFirstListNode(children) === null) {
this.error('Condition is expected');
}
return children;
},
block: function() {
return this.Block(false);
}
}
};