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1
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11 package com.opensymphony.webwork.views.util;
12
13
14
21 public class TextUtil {
22
24 protected static final int MAX_LENGTH = 300;
25
26
30 protected static final char[][] _stringChars = new char[MAX_LENGTH][];
31
32 static {
33 initMapping();
35 }
36
37
39
42 public static final String  escapeHTML(String s) {
43 return escapeHTML(s, false);
44 }
45
46
52 public static final String escapeHTML(String s, boolean escapeEmpty) {
53 int len = s.length();
54
55 if (len == 0) {
56 return s;
57 }
58
59 if (!escapeEmpty) {
60 String trimmed = s.trim();
61
62 if ((trimmed.length() == 0) || ("\"\"").equals(trimmed)) {
63 return s;
64 }
65 }
66
67 int i = 0;
68
69 do {
72 int index = s.charAt(i);
73
74 if (index >= MAX_LENGTH) {
75 if (index != 0x20AC) {
77 continue;
78 }
79
80 break;
81 } else if (_stringChars[index] != null) {
82 break;
83 }
84 } while (++i < len);
85
86 if (i == len) {
89 return s;
90 }
91
92 StringBuffer sb = new StringBuffer (len + 40);
97 char[] chars = new char[len];
98
99 s.getChars(0, len, chars, 0);
101
102 sb.append(chars, 0, i);
104
105 int last = i;
106 char[] subst;
107
108 for (; i < len; i++) {
109 char c = chars[i];
110 int index = c;
111
112 if (index < MAX_LENGTH) {
113 subst = _stringChars[index];
114
115 if (subst != null) {
117 if (i > last) {
118 sb.append(chars, last, i - last);
119 }
120
121 sb.append(subst);
122 last = i + 1;
123 }
124 }
125 else if (index == 0x20AC) {
128 if (i > last) {
129 sb.append(chars, last, i - last);
130 }
131
132 sb.append("€");
133 last = i + 1;
134 }
135 }
136
137 if (i > last) {
138 sb.append(chars, last, i - last);
139 }
140
141 return sb.toString();
142 }
143
144 protected static void addMapping(int c, String txt, String [] strings) {
145 strings[c] = txt;
146 }
147
148 protected static void initMapping() {
149 String [] strings = new String [MAX_LENGTH];
150
151 addMapping(0x22, """, strings); addMapping(0x26, "&", strings); addMapping(0x3c, "<", strings); addMapping(0x3e, ">", strings);
156 addMapping(0xa1, "¡", strings); addMapping(0xa2, "¢", strings); addMapping(0xa3, "£", strings); addMapping(0xa9, "©", strings); addMapping(0xae, "®", strings); addMapping(0xbf, "¿", strings);
163 addMapping(0xc0, "À", strings); addMapping(0xc1, "Á", strings); addMapping(0xc2, "Â", strings); addMapping(0xc3, "Ã", strings); addMapping(0xc4, "Ä", strings); addMapping(0xc5, "Å", strings); addMapping(0xc6, "Æ", strings); addMapping(0xc7, "Ç", strings); addMapping(0xc8, "È", strings); addMapping(0xc9, "É", strings); addMapping(0xca, "Ê", strings); addMapping(0xcb, "Ë", strings); addMapping(0xcc, "Ì", strings); addMapping(0xcd, "Í", strings); addMapping(0xce, "Î", strings); addMapping(0xcf, "Ï", strings);
180 addMapping(0xd0, "Ð", strings); addMapping(0xd1, "Ñ", strings); addMapping(0xd2, "Ò", strings); addMapping(0xd3, "Ó", strings); addMapping(0xd4, "Ô", strings); addMapping(0xd5, "Õ", strings); addMapping(0xd6, "Ö", strings); addMapping(0xd7, "×", strings); addMapping(0xd8, "Ø", strings); addMapping(0xd9, "Ù", strings); addMapping(0xda, "Ú", strings); addMapping(0xdb, "Û", strings); addMapping(0xdc, "Ü", strings); addMapping(0xdd, "Ý", strings); addMapping(0xde, "Þ", strings); addMapping(0xdf, "ß", strings);
197 addMapping(0xe0, "à", strings); addMapping(0xe1, "á", strings); addMapping(0xe2, "â", strings); addMapping(0xe3, "ã", strings); addMapping(0xe4, "ä", strings); addMapping(0xe5, "å", strings); addMapping(0xe6, "æ", strings); addMapping(0xe7, "ç", strings); addMapping(0xe8, "è", strings); addMapping(0xe9, "é", strings); addMapping(0xea, "ê", strings); addMapping(0xeb, "ë", strings); addMapping(0xec, "ì", strings); addMapping(0xed, "í", strings); addMapping(0xee, "î", strings); addMapping(0xef, "ï", strings);
214 addMapping(0xf0, "ð", strings); addMapping(0xf1, "ñ", strings); addMapping(0xf2, "ò", strings); addMapping(0xf3, "ó", strings); addMapping(0xf4, "ô", strings); addMapping(0xf5, "õ", strings); addMapping(0xf6, "ö", strings); addMapping(0xf7, "÷", strings); addMapping(0xf8, "ø", strings); addMapping(0xf9, "ù", strings); addMapping(0xfa, "ú", strings); addMapping(0xfb, "û", strings); addMapping(0xfc, "ü", strings); addMapping(0xfd, "ý", strings); addMapping(0xfe, "þ", strings); addMapping(0xff, "ÿ", strings);
231 for (int i = 0; i < strings.length; i++) {
232 String str = strings[i];
233
234 if (str != null) {
235 _stringChars[i] = str.toCharArray();
236 }
237 }
238 }
239 }
240 |
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