Revision 44750 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.api/src/main/java/org/gvsig/expressionevaluator/spi/AbstractLexicalAnalyzer.java
| AbstractLexicalAnalyzer.java | ||
|---|---|---|
| 194 | 194 |
|
| 195 | 195 |
@Override |
| 196 | 196 |
public Token look() {
|
| 197 |
push_state();
|
|
| 197 |
save_state();
|
|
| 198 | 198 |
try {
|
| 199 | 199 |
return getToken(); |
| 200 | 200 |
} finally {
|
| 201 |
pop_state();
|
|
| 201 |
restore_state();
|
|
| 202 | 202 |
} |
| 203 | 203 |
} |
| 204 | 204 |
|
| 205 | 205 |
abstract protected Token getToken(); |
| 206 | 206 |
|
| 207 |
public void push_state() {
|
|
| 207 |
public void save_state() {
|
|
| 208 | 208 |
this.states.push(position); |
| 209 | 209 |
} |
| 210 | 210 |
|
| 211 |
public void pop_state() {
|
|
| 211 |
public void restore_state() {
|
|
| 212 | 212 |
position = this.states.pop(); |
| 213 | 213 |
} |
| 214 | 214 |
|
| 215 |
public void drop_state() {
|
|
| 216 |
this.states.pop(); |
|
| 217 |
} |
|
| 218 |
|
|
| 215 | 219 |
@Override |
| 216 | 220 |
public int getPosition() {
|
| 217 | 221 |
return position; |
Also available in: Unified diff