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Gradle 5.5.1 API redistribution.
/*
* Copyright 2014 the original author or authors.
*
* 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 org.gradle.internal.xml;
public class XmlValidation {
public static boolean isValidXmlName(CharSequence name) {
// element names can only contain 0 or 1 colon
// See http://www.w3.org/TR/2004/REC-xml-names11-20040204/#Conformance
// If the name has a prefix, evaluate both prefix and name
int pos = 0;
int nsPos = 0;
int nsCount = 0;
for (; pos < name.length(); pos++) {
char ch = name.charAt(pos);
if (ch == ':') {
nsCount++;
if (nsCount > 1) {
return false;
}
if (pos > 0) {
// non leading ':'
nsPos = pos + 1;
}
// else leading ':', this is ok
} else if (pos == nsPos) {
if (!isValidNameStartChar(ch)) {
return false;
}
} else {
if (!isValidNameChar(ch)) {
return false;
}
}
}
return pos != nsPos;
}
private static boolean isValidNameChar(char ch) {
if (isValidNameStartChar(ch)) {
return true;
}
if (ch >= '0' && ch <= '9') {
return true;
}
if (ch == '-' || ch == '.' || ch == '\u00b7') {
return true;
}
if (ch >= '\u0300' && ch <= '\u036f') {
return true;
}
if (ch >= '\u203f' && ch <= '\u2040') {
return true;
}
return false;
}
private static boolean isValidNameStartChar(char ch) {
if (ch >= 'A' && ch <= 'Z') {
return true;
}
if (ch >= 'a' && ch <= 'z') {
return true;
}
if (ch == ':' || ch == '_') {
return true;
}
if (ch >= '\u00c0' && ch <= '\u00d6') {
return true;
}
if (ch >= '\u00d8' && ch <= '\u00f6') {
return true;
}
if (ch >= '\u00f8' && ch <= '\u02ff') {
return true;
}
if (ch >= '\u0370' && ch <= '\u037d') {
return true;
}
if (ch >= '\u037f' && ch <= '\u1fff') {
return true;
}
if (ch >= '\u200c' && ch <= '\u200d') {
return true;
}
if (ch >= '\u2070' && ch <= '\u218f') {
return true;
}
if (ch >= '\u2c00' && ch <= '\u2fef') {
return true;
}
if (ch >= '\u3001' && ch <= '\ud7ff') {
return true;
}
if (ch >= '\uf900' && ch <= '\ufdcf') {
return true;
}
if (ch >= '\ufdf0' && ch <= '\ufffd') {
return true;
}
return false;
}
public static boolean isLegalCharacter(final char c) {
if (c == 0x9 || c == 0xA || c == 0xD) {
return true;
} else if (c < 0x20) {
return false;
} else if (c <= 0xD7FF) {
return true;
} else if (c < 0xE000) {
return false;
} else if (c <= 0xFFFD) {
return true;
} else if (c < 0x10000) {
return false;
} else if (c <= 0x10FFFF) {
return true;
}
return false;
}
public static boolean isRestrictedCharacter(char c) {
if (c == 0x9 || c == 0xA || c == 0xD || c == 0x85) {
return false;
} else if (c <= 0x1F) {
return true;
} else if (c < 0x7F) {
return false;
} else if (c <= 0x9F) {
return true;
}
return false;
}
}