| Modifier and Type | Method and Description |
|---|---|
| public Token | |
| public TokenSource | |
| public Token | |
| public int | |
| public String | |
| public String |
| get | back to summary |
|---|---|
| public Token get(int i) Get a token at an absolute index i; 0..n-1. This is really only needed for profiling and debugging and token stream rewriting. If you don't want to buffer up tokens, then this method makes no sense for you. Naturally you can't use the rewrite stream feature. I believe DebugTokenStream can easily be altered to not use this method, removing the dependency. | |
| getTokenSource | back to summary |
|---|---|
| public TokenSource getTokenSource() Where is this stream pulling tokens from? This is not the name, but the object that provides Token objects. | |
| LT | back to summary |
|---|---|
| public Token LT(int k) Get Token at current input pointer + i ahead where i=1 is next Token. i<0 indicates tokens in the past. So -1 is previous token and -2 is two tokens ago. LT(0) is undefined. For i>=n, return Token.EOFToken. Return null for LT(0) and any index that results in an absolute address that is negative. | |
| range | back to summary |
|---|---|
| public int range() How far ahead has the stream been asked to look? The return value is a valid index from 0..n-1. | |
| toString | back to summary |
|---|---|
| public String toString(int start, int stop) Return the text of all tokens from start to stop, inclusive. If the stream does not buffer all the tokens then it can just return "" or null; Users should not access $ruleLabel.text in an action of course in that case. | |
| toString | back to summary |
|---|---|
| public String toString(Token start, Token stop) Because the user is not required to use a token with an index stored in it, we must provide a means for two token objects themselves to indicate the start/end location. Most often this will just delegate to the other toString(int,int). This is also parallel with the TreeNodeStream.toString(Object,Object). | |