1 /* |
|
2 * CDDL HEADER START |
|
3 * |
|
4 * The contents of this file are subject to the terms of the |
|
5 * Common Development and Distribution License (the "License"). |
|
6 * You may not use this file except in compliance with the License. |
|
7 * |
|
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
|
9 * or http://www.opensolaris.org/os/licensing. |
|
10 * See the License for the specific language governing permissions |
|
11 * and limitations under the License. |
|
12 * |
|
13 * When distributing Covered Code, include this CDDL HEADER in each |
|
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
|
15 * If applicable, add the following below this CDDL HEADER, with the |
|
16 * fields enclosed by brackets "[]" replaced with your own identifying |
|
17 * information: Portions Copyright [yyyy] [name of copyright owner] |
|
18 * |
|
19 * CDDL HEADER END |
|
20 */ |
|
21 |
|
22 /* |
|
23 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. |
|
24 */ |
|
25 |
|
26 package com.oracle.solaris.vp.util.misc; |
|
27 |
|
28 import java.util.Collection; |
|
29 import java.util.regex.*; |
|
30 |
|
31 public class TextUtil { |
|
32 // |
|
33 // Static methods |
|
34 // |
|
35 |
|
36 /** |
|
37 * Returns the base portion of a fully-qualified class name. |
|
38 */ |
|
39 public static String getClassBaseName(String className) { |
|
40 return className.replaceFirst(".*\\.", ""); |
|
41 } |
|
42 |
|
43 /** |
|
44 * Returns the base portion of the name of the given class. In |
|
45 * constrast with the simple name, which is empty for anonymous |
|
46 * classes and the Java identifier for local classes, this is the |
|
47 * last component of the specified class's binary name. |
|
48 */ |
|
49 public static String getBaseName(Class clazz) { |
|
50 return getClassBaseName(clazz.getName()); |
|
51 } |
|
52 |
|
53 /** |
|
54 * Returns the package portion of a fully-qualified class name. |
|
55 */ |
|
56 public static String getPackageName(String name) { |
|
57 return name.replaceFirst("\\.?\\.*[^.]*$", ""); |
|
58 } |
|
59 |
|
60 /** |
|
61 * Returns a random alpha {@code String} with length between {@code minLen} |
|
62 * and {@code maxLen}. |
|
63 */ |
|
64 public static String getRandomAlphaString(int minLen, int maxLen) { |
|
65 StringBuilder buffer = new StringBuilder(); |
|
66 int length = (int)(Math.random() * (maxLen - minLen + 1)) + minLen; |
|
67 for (int j = 0; j < length; j++) { |
|
68 char c = (char)((Math.random() * 26) + 97); |
|
69 buffer.append(c); |
|
70 } |
|
71 return buffer.toString(); |
|
72 } |
|
73 |
|
74 /** |
|
75 * Replace characters with special meaning to HTML with their HTML entity |
|
76 * equivalents. |
|
77 */ |
|
78 public static String escapeHTMLChars(String text) { |
|
79 StringBuilder buffer = new StringBuilder(); |
|
80 |
|
81 for (char c : text.toCharArray()) { |
|
82 switch (c) { |
|
83 case '<': |
|
84 buffer.append("<"); |
|
85 break; |
|
86 |
|
87 case '>': |
|
88 buffer.append(">"); |
|
89 break; |
|
90 |
|
91 case '\"': |
|
92 buffer.append("""); |
|
93 break; |
|
94 |
|
95 case '\'': |
|
96 buffer.append("'"); |
|
97 break; |
|
98 |
|
99 case '\\': |
|
100 buffer.append("\"); |
|
101 break; |
|
102 |
|
103 case '&': |
|
104 buffer.append("&"); |
|
105 break; |
|
106 |
|
107 case '\n': |
|
108 buffer.append("<br/>"); |
|
109 break; |
|
110 |
|
111 default: |
|
112 buffer.append(c); |
|
113 } |
|
114 } |
|
115 |
|
116 return buffer.toString(); |
|
117 } |
|
118 |
|
119 /** |
|
120 * Splits the given string into lines. |
|
121 * |
|
122 * @param text |
|
123 * the text to format |
|
124 * |
|
125 * @param width |
|
126 * the maximum width of each line |
|
127 * |
|
128 * @param indent1 |
|
129 * the indent to put on the first line |
|
130 * |
|
131 * @param indent2 |
|
132 * the indent to put on the second and remaining lines |
|
133 * |
|
134 * @param forceBreak |
|
135 * whether to force a break in the middle of a word |
|
136 * if the length of the word is greater than |
|
137 * <code>width</code> |
|
138 * |
|
139 * @return a wrapped string separated by newlines |
|
140 */ |
|
141 public static String format(String text, int width, |
|
142 String indent1, String indent2, boolean forceBreak) { |
|
143 |
|
144 if (text == null) { |
|
145 return text; |
|
146 } |
|
147 |
|
148 // Replace newlines |
|
149 text = text.replaceAll("\\s*[\\r\\n]\\s*", " "); |
|
150 |
|
151 StringBuilder buffer = new StringBuilder(); |
|
152 |
|
153 String indent = indent1; |
|
154 int w = width - indent.length(); |
|
155 if (w < 1) { |
|
156 w = 1; |
|
157 } |
|
158 |
|
159 for (int i = 0; text.length() > 0; i++) { |
|
160 String regex = "^\\s*(.{1," + w + "})($|\\s+.*)"; |
|
161 String[] groups = match(text, regex); |
|
162 |
|
163 if (groups == null) { |
|
164 // Can't break line on whitespace without exceeding width |
|
165 if (forceBreak) { |
|
166 // Break line in middle of word |
|
167 regex = "^\\s*(.{1," + w + "})(.*)"; |
|
168 } else { |
|
169 // Break line at next whitespace |
|
170 regex = "^\\s*(.+?)($|\\s+.*)"; |
|
171 } |
|
172 |
|
173 groups = match(text, regex); |
|
174 } |
|
175 |
|
176 if (i != 0) { |
|
177 buffer.append("\n"); |
|
178 } |
|
179 |
|
180 buffer.append(indent).append(groups[1].trim()); |
|
181 text = groups[2]; |
|
182 |
|
183 if (i == 0) { |
|
184 indent = indent2; |
|
185 w = width - indent.length(); |
|
186 if (w < 1) { |
|
187 w = 1; |
|
188 } |
|
189 } |
|
190 } |
|
191 |
|
192 return buffer.toString(); |
|
193 } |
|
194 |
|
195 /** |
|
196 * Shortcut for: |
|
197 * <p> |
|
198 * <code> |
|
199 * {@link #format(String,int,String,String,boolean) format} |
|
200 * (text, width, "", "", forceBreak); |
|
201 * </code> |
|
202 * </p> |
|
203 */ |
|
204 public static String format(String text, int width, boolean forceBreak) { |
|
205 return format(text, width, "", "", forceBreak); |
|
206 } |
|
207 |
|
208 public static boolean isPrintable(char c) { |
|
209 return c >= 32 && c <= 126; |
|
210 } |
|
211 |
|
212 public static String join(String delim, Object... list) { |
|
213 StringBuilder buffer = new StringBuilder(); |
|
214 |
|
215 for (int i = 0; i < list.length; i++) { |
|
216 if (i != 0 && delim != null) { |
|
217 buffer.append(delim); |
|
218 } |
|
219 if (list[i] != null) { |
|
220 buffer.append(list[i]); |
|
221 } |
|
222 } |
|
223 |
|
224 return buffer.toString(); |
|
225 } |
|
226 |
|
227 public static String join(String delim, byte... list) { |
|
228 Byte[] array = new Byte[list.length]; |
|
229 for (int i = 0; i < array.length; i++) { |
|
230 array[i] = list[i]; |
|
231 } |
|
232 return join(delim, (Object[])array); |
|
233 } |
|
234 |
|
235 public static String join(String delim, char... list) { |
|
236 Character[] array = new Character[list.length]; |
|
237 for (int i = 0; i < array.length; i++) { |
|
238 array[i] = list[i]; |
|
239 } |
|
240 return join(delim, (Object[])array); |
|
241 } |
|
242 |
|
243 public static String join(String delim, double... list) { |
|
244 Double[] array = new Double[list.length]; |
|
245 for (int i = 0; i < array.length; i++) { |
|
246 array[i] = list[i]; |
|
247 } |
|
248 return join(delim, (Object[])array); |
|
249 } |
|
250 |
|
251 public static String join(String delim, float... list) { |
|
252 Float[] array = new Float[list.length]; |
|
253 for (int i = 0; i < array.length; i++) { |
|
254 array[i] = list[i]; |
|
255 } |
|
256 return join(delim, (Object[])array); |
|
257 } |
|
258 |
|
259 public static String join(String delim, int... list) { |
|
260 Integer[] array = new Integer[list.length]; |
|
261 for (int i = 0; i < array.length; i++) { |
|
262 array[i] = list[i]; |
|
263 } |
|
264 return join(delim, (Object[])array); |
|
265 } |
|
266 |
|
267 public static String join(String delim, long... list) { |
|
268 Long[] array = new Long[list.length]; |
|
269 for (int i = 0; i < array.length; i++) { |
|
270 array[i] = list[i]; |
|
271 } |
|
272 return join(delim, (Object[])array); |
|
273 } |
|
274 |
|
275 public static String join(String delim, short... list) { |
|
276 Short[] array = new Short[list.length]; |
|
277 for (int i = 0; i < array.length; i++) { |
|
278 array[i] = list[i]; |
|
279 } |
|
280 return join(delim, (Object[])array); |
|
281 } |
|
282 |
|
283 public static String join(String delim, Collection list) { |
|
284 return join(delim, list.toArray()); |
|
285 } |
|
286 |
|
287 /** |
|
288 * Matches the given string against the given regular expression, |
|
289 * returning an array of the matched regular expression groups. |
|
290 * |
|
291 * @param text |
|
292 * the String to which to apply the regular |
|
293 * expression |
|
294 * |
|
295 * @param regex |
|
296 * a regular expression containing groups |
|
297 * |
|
298 * @return an array of the matched regular expression groups |
|
299 * (group 0 is the entire pattern), if the given |
|
300 * pattern matched, or {@code null} if the |
|
301 * pattern did not match |
|
302 */ |
|
303 public static String[] match(String text, Pattern regex) { |
|
304 Matcher matcher = regex.matcher(text); |
|
305 if (!matcher.matches()) { |
|
306 return null; |
|
307 } |
|
308 |
|
309 String[] groups = new String[matcher.groupCount() + 1]; |
|
310 for (int i = 0; i < groups.length; i++) { |
|
311 groups[i] = matcher.group(i); |
|
312 } |
|
313 |
|
314 return groups; |
|
315 } |
|
316 |
|
317 /** |
|
318 * Compiles the given regular expression and calls {@link |
|
319 * #match(String,Pattern)}. |
|
320 * |
|
321 * @exception PatternSyntaxException |
|
322 * if the given pattern was malformed |
|
323 */ |
|
324 public static String[] match(String text, String regex) |
|
325 throws PatternSyntaxException { |
|
326 |
|
327 return match(text, Pattern.compile(regex)); |
|
328 } |
|
329 |
|
330 /** |
|
331 * Converts {@code str} to a Java identifier by replacing any illegal |
|
332 * characters with {@code repl}. |
|
333 */ |
|
334 public static String toJavaIdentifier(String str, String repl) { |
|
335 StringBuilder buffer = new StringBuilder(); |
|
336 for (char c : str.toCharArray()) { |
|
337 boolean empty = buffer.length() == 0; |
|
338 if ((empty && Character.isJavaIdentifierStart(c)) || |
|
339 (!empty && Character.isJavaIdentifierPart(c))) { |
|
340 buffer.append(c); |
|
341 } else { |
|
342 buffer.append(repl); |
|
343 } |
|
344 } |
|
345 return buffer.toString(); |
|
346 } |
|
347 |
|
348 public static String toJavaMethodName(String... words) { |
|
349 StringBuilder buffer = new StringBuilder(); |
|
350 for (String word : words) { |
|
351 try { |
|
352 buffer.append(word.substring(0, 1).toUpperCase()); |
|
353 buffer.append(word.substring(1).toLowerCase()); |
|
354 } catch (IndexOutOfBoundsException ignore) { |
|
355 } |
|
356 } |
|
357 return buffer.toString(); |
|
358 } |
|
359 } |
|