3 * Copyright 2001-2004 The Ant-Contrib project
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 package net
.sf
.antcontrib
.cpptasks
.parser
;
18 import java
.io
.IOException
;
19 import java
.io
.Reader
;
21 * An abstract base class for simple parsers
25 public abstract class AbstractParser
{
30 protected AbstractParser() {
32 protected abstract void addFilename(String filename
);
33 public abstract AbstractParserState
getNewLineState();
34 protected void parse(Reader reader
) throws IOException
{
35 char[] buf
= new char[4096];
36 AbstractParserState newLineState
= getNewLineState();
37 AbstractParserState state
= newLineState
;
40 charsRead
= reader
.read(buf
, 0, buf
.length
);
42 for (int i
= 0; i
< charsRead
; i
++) {
50 for (int i
= 0; i
< charsRead
; i
++) {
51 state
= state
.consume(buf
[i
]);
53 // didn't match a production, skip to a new line
56 for (; i
< charsRead
; i
++) {
65 } while (charsRead
>= 0);