Restructuring for better separation of Tool packages.

[mirror_edk2.git] / Tools / Java / Source / Cpptasks / net / sf / antcontrib / cpptasks / parser / AbstractParser.java

diff --git a/Tools/Java/Source/Cpptasks/net/sf/antcontrib/cpptasks/parser/AbstractParser.java b/Tools/Java/Source/Cpptasks/net/sf/antcontrib/cpptasks/parser/AbstractParser.java
new file mode 100644 (file)
index 0000000..6f0b79c
--- /dev/null
+++ b/Tools/Java/Source/Cpptasks/net/sf/antcontrib/cpptasks/parser/AbstractParser.java
@@ -0,0 +1,67 @@
+/*\r
+ * \r
+ * Copyright 2001-2004 The Ant-Contrib project\r
+ *\r
+ *  Licensed under the Apache License, Version 2.0 (the "License");\r
+ *  you may not use this file except in compliance with the License.\r
+ *  You may obtain a copy of the License at\r
+ *\r
+ *      http://www.apache.org/licenses/LICENSE-2.0\r
+ *\r
+ *  Unless required by applicable law or agreed to in writing, software\r
+ *  distributed under the License is distributed on an "AS IS" BASIS,\r
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ *  See the License for the specific language governing permissions and\r
+ *  limitations under the License.\r
+ */\r
+package net.sf.antcontrib.cpptasks.parser;\r
+import java.io.IOException;\r
+import java.io.Reader;\r
+/**\r
+ * An abstract base class for simple parsers\r
+ * \r
+ * @author Curt Arnold\r
+ */\r
+public abstract class AbstractParser {\r
+    /**\r
+     * \r
+     *  \r
+     */\r
+    protected AbstractParser() {\r
+    }\r
+    protected abstract void addFilename(String filename);\r
+    public abstract AbstractParserState getNewLineState();\r
+    protected void parse(Reader reader) throws IOException {\r
+        char[] buf = new char[4096];\r
+        AbstractParserState newLineState = getNewLineState();\r
+        AbstractParserState state = newLineState;\r
+        int charsRead = -1;\r
+        do {\r
+            charsRead = reader.read(buf, 0, buf.length);\r
+            if (state == null) {\r
+                for (int i = 0; i < charsRead; i++) {\r
+                    if (buf[i] == '\n') {\r
+                        state = newLineState;\r
+                        break;\r
+                    }\r
+                }\r
+            }\r
+            if (state != null) {\r
+                for (int i = 0; i < charsRead; i++) {\r
+                    state = state.consume(buf[i]);\r
+                    //\r
+                    //  didn't match a production, skip to a new line\r
+                    //\r
+                    if (state == null) {\r
+                        for (; i < charsRead; i++) {\r
+                            if (buf[i] == '\n') {\r
+                                state = newLineState;\r
+                                break;\r
+                            }\r
+                        }\r
+                    }\r
+                }\r
+            }\r
+        } while (charsRead >= 0);\r
+    }\r
+}\r