You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.3 KiB
55 lines
1.3 KiB
4 weeks ago
|
var TYPE = require('../tokenizer').TYPE;
|
||
|
|
var WHITESPACE = TYPE.WhiteSpace;
|
||
|
|
var COMMENT = TYPE.Comment;
|
||
|
|
|
||
|
|
module.exports = function readSequence(recognizer) {
|
||
|
|
var children = this.createList();
|
||
|
|
var child = null;
|
||
|
|
var context = {
|
||
|
|
recognizer: recognizer,
|
||
|
|
space: null,
|
||
|
|
ignoreWS: false,
|
||
|
|
ignoreWSAfter: false
|
||
|
|
};
|
||
|
|
|
||
|
|
this.scanner.skipSC();
|
||
|
|
|
||
|
|
while (!this.scanner.eof) {
|
||
|
|
switch (this.scanner.tokenType) {
|
||
|
|
case COMMENT:
|
||
|
|
this.scanner.next();
|
||
|
|
continue;
|
||
|
|
|
||
|
|
case WHITESPACE:
|
||
|
|
if (context.ignoreWS) {
|
||
|
|
this.scanner.next();
|
||
|
|
} else {
|
||
|
|
context.space = this.WhiteSpace();
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
child = recognizer.getNode.call(this, context);
|
||
|
|
|
||
|
|
if (child === undefined) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (context.space !== null) {
|
||
|
|
children.push(context.space);
|
||
|
|
context.space = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
children.push(child);
|
||
|
|
|
||
|
|
if (context.ignoreWSAfter) {
|
||
|
|
context.ignoreWSAfter = false;
|
||
|
|
context.ignoreWS = true;
|
||
|
|
} else {
|
||
|
|
context.ignoreWS = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return children;
|
||
|
|
};
|