| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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.intellij.xml.util; |
| |
| import com.intellij.openapi.util.text.StringUtil; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author yole |
| */ |
| public class XmlStringUtil { |
| @NonNls private static final String HTML_HEADER = "<html>"; |
| @NonNls private static final String BODY_HEADER = "<body>"; |
| @NonNls private static final String HTML_FOOTER = "</html>"; |
| @NonNls private static final String BODY_FOOTER = "</body>"; |
| |
| private XmlStringUtil() { |
| } |
| |
| public static String escapeString(@Nullable String str) { |
| return escapeString(str, false); |
| } |
| |
| public static String escapeString(@Nullable String str, final boolean escapeWhiteSpace) { |
| return escapeString(str, escapeWhiteSpace, true); |
| } |
| |
| public static String escapeString(@Nullable String str, final boolean escapeWhiteSpace, final boolean convertNoBreakSpace) { |
| if (str == null) return null; |
| StringBuilder buffer = null; |
| for (int i = 0; i < str.length(); i++) { |
| @NonNls String entity; |
| char ch = str.charAt(i); |
| switch (ch) { |
| case '\n': |
| entity = escapeWhiteSpace ? " " : null; |
| break; |
| case '\r': |
| entity = escapeWhiteSpace ? " " : null; |
| break; |
| case '\t': |
| entity = escapeWhiteSpace ? "	" : null; |
| break; |
| case '\"': |
| entity = """; |
| break; |
| case '<': |
| entity = "<"; |
| break; |
| case '>': |
| entity = ">"; |
| break; |
| case '&': |
| entity = "&"; |
| break; |
| case 160: // unicode char for |
| entity = convertNoBreakSpace ? " " : null; |
| break; |
| default: |
| entity = null; |
| break; |
| } |
| if (buffer == null) { |
| if (entity != null) { |
| // An entity occurred, so we'll have to use StringBuffer |
| // (allocate room for it plus a few more entities). |
| buffer = new StringBuilder(str.length() + 20); |
| // Copy previous skipped characters and fall through |
| // to pickup current character |
| buffer.append(str.substring(0, i)); |
| buffer.append(entity); |
| } |
| } |
| else { |
| if (entity == null) { |
| buffer.append(ch); |
| } |
| else { |
| buffer.append(entity); |
| } |
| } |
| } |
| |
| // If there were any entities, return the escaped characters |
| // that we put in the StringBuffer. Otherwise, just return |
| // the unmodified input string. |
| return buffer == null ? str : buffer.toString(); |
| } |
| |
| @NotNull |
| public static String wrapInHtml(@NotNull CharSequence result) { |
| return HTML_HEADER + result + HTML_FOOTER; |
| } |
| |
| public static boolean isWrappedInHtml(@NotNull String tooltip) { |
| return StringUtil.startsWithIgnoreCase(tooltip, HTML_HEADER) && |
| StringUtil.endsWithIgnoreCase(tooltip, HTML_FOOTER); |
| } |
| |
| @NotNull |
| public static String stripHtml(@NotNull String toolTip) { |
| toolTip = StringUtil.trimStart(toolTip, HTML_HEADER); |
| toolTip = StringUtil.trimStart(toolTip, BODY_HEADER); |
| toolTip = StringUtil.trimEnd(toolTip, HTML_FOOTER); |
| toolTip = StringUtil.trimEnd(toolTip, BODY_FOOTER); |
| return toolTip; |
| } |
| } |
