Initial import of Doclava project
Change-Id: Ia5ae56f1700fce98e0ae6954fa2df617ec0537bb
diff --git a/src/com/google/doclava/SourcePositionInfo.java b/src/com/google/doclava/SourcePositionInfo.java
new file mode 100644
index 0000000..cf516c8
--- /dev/null
+++ b/src/com/google/doclava/SourcePositionInfo.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2010 Google Inc.
+ *
+ * Licensed 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.
+ */
+
+package com.google.doclava;
+
+public class SourcePositionInfo implements Comparable {
+ public static final SourcePositionInfo UNKNOWN = new SourcePositionInfo("(unknown)", 0, 0);
+
+ public SourcePositionInfo(String file, int line, int column) {
+ this.file = file;
+ this.line = line;
+ this.column = column;
+ }
+
+ public SourcePositionInfo(SourcePositionInfo that) {
+ this.file = that.file;
+ this.line = that.line;
+ this.column = that.column;
+ }
+
+ /**
+ * Given this position and str which occurs at that position, as well as str an index into str,
+ * find the SourcePositionInfo.
+ *
+ * @throw StringIndexOutOfBoundsException if index > str.length()
+ */
+ public static SourcePositionInfo add(SourcePositionInfo that, String str, int index) {
+ if (that == null) {
+ return null;
+ }
+ int line = that.line;
+ char prev = 0;
+ for (int i = 0; i < index; i++) {
+ char c = str.charAt(i);
+ if (c == '\r' || (c == '\n' && prev != '\r')) {
+ line++;
+ }
+ prev = c;
+ }
+ return new SourcePositionInfo(that.file, line, 0);
+ }
+
+ public static SourcePositionInfo findBeginning(SourcePositionInfo that, String str) {
+ if (that == null) {
+ return null;
+ }
+ int line = that.line - 1; // -1 because, well, it seems to work
+ int prev = 0;
+ for (int i = str.length() - 1; i >= 0; i--) {
+ char c = str.charAt(i);
+ if ((c == '\r' && prev != '\n') || (c == '\n')) {
+ line--;
+ }
+ prev = c;
+ }
+ return new SourcePositionInfo(that.file, line, 0);
+ }
+
+ @Override
+ public String toString() {
+ return file + ':' + line;
+ }
+
+ public int compareTo(Object o) {
+ SourcePositionInfo that = (SourcePositionInfo) o;
+ int r = this.file.compareTo(that.file);
+ if (r != 0) return r;
+ return this.line - that.line;
+ }
+
+ /**
+ * Build a SourcePositionInfo from the XML source= notation
+ */
+ public static SourcePositionInfo fromXml(String source) {
+ if (source != null) {
+ for (int i = 0; i < source.length(); i++) {
+ if (source.charAt(i) == ':') {
+ return new SourcePositionInfo(source.substring(0, i), Integer.parseInt(source
+ .substring(i + 1)), 0);
+ }
+ }
+ }
+
+ return UNKNOWN;
+ }
+
+ public String file;
+ public int line;
+ public int column;
+}