diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/etc/testcases/taskdefs/optional/antlr/antlr.g')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/etc/testcases/taskdefs/optional/antlr/antlr.g | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/etc/testcases/taskdefs/optional/antlr/antlr.g b/framework/src/ant/apache-ant-1.9.6/src/etc/testcases/taskdefs/optional/antlr/antlr.g deleted file mode 100644 index 9f724936..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/etc/testcases/taskdefs/optional/antlr/antlr.g +++ /dev/null @@ -1,76 +0,0 @@ -/* -Licensed to the Apache Software Foundation (ASF) under one or more -contributor license agreements. See the NOTICE file distributed with -this work for additional information regarding copyright ownership. -The ASF licenses this file to You under the Apache License, Version 2.0 -(the "License"); you may not use this file except in compliance with -the License. You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ -class CalcParser extends Parser; -options { - buildAST = true; // uses CommonAST by default -} - -expr - : mexpr (PLUS^ mexpr)* SEMI! - ; - -mexpr - : atom (STAR^ atom)* - ; - -atom: INT - ; - -class CalcLexer extends Lexer; - -WS : (' ' - | '\t' - | '\n' - | '\r') - { _ttype = Token.SKIP; } - ; - -LPAREN: '(' - ; - -RPAREN: ')' - ; - -STAR: '*' - ; - -PLUS: '+' - ; - -SEMI: ';' - ; - -protected -DIGIT - : '0'..'9' - ; - -INT : (DIGIT)+ - ; - -class CalcTreeWalker extends TreeParser; - -expr returns [float r] -{ - float a,b; - r=0; -} - : #(PLUS a=expr b=expr) {r = a+b;} - | #(STAR a=expr b=expr) {r = a*b;} - | i:INT {r = (float)Integer.parseInt(i.getText());} - ; - |