Integrating File to URI conversion code into the main branch.
git-svn-id: https://svn.apache.org/repos/asf/xml/commons/trunk@226207 13f79535-47bb-0310-9956-ffa450edef68
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mrglavas
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128
java/external/src/javax/xml/parsers/FilePathToURI.java
vendored
Normal file
128
java/external/src/javax/xml/parsers/FilePathToURI.java
vendored
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/*
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* Copyright 2002-2005 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package javax.xml.parsers;
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class FilePathToURI {
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// which ASCII characters need to be escaped
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private static boolean gNeedEscaping[] = new boolean[128];
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// the first hex character if a character needs to be escaped
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private static char gAfterEscaping1[] = new char[128];
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// the second hex character if a character needs to be escaped
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private static char gAfterEscaping2[] = new char[128];
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private static char[] gHexChs = {'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
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// initialize the above 3 arrays
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static {
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for (int i = 0; i <= 0x1f; i++) {
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gNeedEscaping[i] = true;
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gAfterEscaping1[i] = gHexChs[i >> 4];
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gAfterEscaping2[i] = gHexChs[i & 0xf];
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}
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gNeedEscaping[0x7f] = true;
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gAfterEscaping1[0x7f] = '7';
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gAfterEscaping2[0x7f] = 'F';
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char[] escChs = {' ', '<', '>', '#', '%', '"', '{', '}',
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'|', '\\', '^', '~', '[', ']', '`'};
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int len = escChs.length;
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char ch;
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for (int i = 0; i < len; i++) {
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ch = escChs[i];
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gNeedEscaping[ch] = true;
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gAfterEscaping1[ch] = gHexChs[ch >> 4];
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gAfterEscaping2[ch] = gHexChs[ch & 0xf];
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}
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}
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// To escape a file path to a URI, by using %HH to represent
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// special ASCII characters: 0x00~0x1F, 0x7F, ' ', '<', '>', '#', '%'
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// and '"' and non-ASCII characters (whose value >= 128).
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public static String filepath2URI(String path){
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// return null if path is null.
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if (path == null)
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return null;
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char separator = java.io.File.separatorChar;
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path = path.replace(separator, '/');
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int len = path.length(), ch;
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StringBuffer buffer = new StringBuffer(len*3);
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buffer.append("file://");
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// change C:/blah to /C:/blah
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if (len >= 2 && path.charAt(1) == ':') {
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ch = Character.toUpperCase(path.charAt(0));
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if (ch >= 'A' && ch <= 'Z') {
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buffer.append('/');
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}
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}
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// for each character in the path
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int i = 0;
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for (; i < len; i++) {
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ch = path.charAt(i);
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// if it's not an ASCII character, break here, and use UTF-8 encoding
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if (ch >= 128)
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break;
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if (gNeedEscaping[ch]) {
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buffer.append('%');
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buffer.append(gAfterEscaping1[ch]);
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buffer.append(gAfterEscaping2[ch]);
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// record the fact that it's escaped
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}
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else {
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buffer.append((char)ch);
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}
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}
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// we saw some non-ascii character
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if (i < len) {
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// get UTF-8 bytes for the remaining sub-string
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byte[] bytes = null;
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byte b;
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try {
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bytes = path.substring(i).getBytes("UTF-8");
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} catch (java.io.UnsupportedEncodingException e) {
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// should never happen
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return path;
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}
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len = bytes.length;
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// for each byte
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for (i = 0; i < len; i++) {
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b = bytes[i];
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// for non-ascii character: make it positive, then escape
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if (b < 0) {
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ch = b + 256;
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buffer.append('%');
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buffer.append(gHexChs[ch >> 4]);
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buffer.append(gHexChs[ch & 0xf]);
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}
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else if (gNeedEscaping[b]) {
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buffer.append('%');
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buffer.append(gAfterEscaping1[b]);
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buffer.append(gAfterEscaping2[b]);
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}
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else {
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buffer.append((char)b);
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}
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}
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}
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return buffer.toString();
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}
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}//FilePathToURI
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128
java/external/src/javax/xml/transform/stream/FilePathToURI.java
vendored
Normal file
128
java/external/src/javax/xml/transform/stream/FilePathToURI.java
vendored
Normal file
@ -0,0 +1,128 @@
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/*
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* Copyright 2003-2005 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package javax.xml.transform.stream;
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class FilePathToURI {
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// which ASCII characters need to be escaped
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private static boolean gNeedEscaping[] = new boolean[128];
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// the first hex character if a character needs to be escaped
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private static char gAfterEscaping1[] = new char[128];
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// the second hex character if a character needs to be escaped
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private static char gAfterEscaping2[] = new char[128];
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private static char[] gHexChs = {'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
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// initialize the above 3 arrays
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static {
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for (int i = 0; i <= 0x1f; i++) {
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gNeedEscaping[i] = true;
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gAfterEscaping1[i] = gHexChs[i >> 4];
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gAfterEscaping2[i] = gHexChs[i & 0xf];
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}
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gNeedEscaping[0x7f] = true;
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gAfterEscaping1[0x7f] = '7';
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gAfterEscaping2[0x7f] = 'F';
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char[] escChs = {' ', '<', '>', '#', '%', '"', '{', '}',
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'|', '\\', '^', '~', '[', ']', '`'};
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int len = escChs.length;
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char ch;
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for (int i = 0; i < len; i++) {
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ch = escChs[i];
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gNeedEscaping[ch] = true;
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gAfterEscaping1[ch] = gHexChs[ch >> 4];
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gAfterEscaping2[ch] = gHexChs[ch & 0xf];
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}
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}
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// To escape a file path to a URI, by using %HH to represent
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// special ASCII characters: 0x00~0x1F, 0x7F, ' ', '<', '>', '#', '%'
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// and '"' and non-ASCII characters (whose value >= 128).
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public static String filepath2URI(String path){
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// return null if path is null.
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if (path == null)
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return null;
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char separator = java.io.File.separatorChar;
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path = path.replace(separator, '/');
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int len = path.length(), ch;
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StringBuffer buffer = new StringBuffer(len*3);
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buffer.append("file://");
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// change C:/blah to /C:/blah
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if (len >= 2 && path.charAt(1) == ':') {
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ch = Character.toUpperCase(path.charAt(0));
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if (ch >= 'A' && ch <= 'Z') {
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buffer.append('/');
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}
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}
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// for each character in the path
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int i = 0;
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for (; i < len; i++) {
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ch = path.charAt(i);
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// if it's not an ASCII character, break here, and use UTF-8 encoding
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if (ch >= 128)
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break;
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if (gNeedEscaping[ch]) {
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buffer.append('%');
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buffer.append(gAfterEscaping1[ch]);
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buffer.append(gAfterEscaping2[ch]);
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// record the fact that it's escaped
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}
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else {
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buffer.append((char)ch);
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}
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}
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// we saw some non-ascii character
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if (i < len) {
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// get UTF-8 bytes for the remaining sub-string
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byte[] bytes = null;
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byte b;
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try {
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bytes = path.substring(i).getBytes("UTF-8");
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} catch (java.io.UnsupportedEncodingException e) {
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// should never happen
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return path;
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}
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len = bytes.length;
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// for each byte
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for (i = 0; i < len; i++) {
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b = bytes[i];
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// for non-ascii character: make it positive, then escape
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if (b < 0) {
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ch = b + 256;
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buffer.append('%');
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buffer.append(gHexChs[ch >> 4]);
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buffer.append(gHexChs[ch & 0xf]);
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}
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else if (gNeedEscaping[b]) {
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buffer.append('%');
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buffer.append(gAfterEscaping1[b]);
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buffer.append(gAfterEscaping2[b]);
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}
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else {
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buffer.append((char)b);
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}
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}
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}
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return buffer.toString();
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}
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}//FilePathToURI
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