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