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1
28
29 package com.caucho.xsl;
30
31 import com.caucho.util.CharBuffer;
32 import com.caucho.util.IntArray;
33
34 import java.util.ArrayList  ;
35
36
39 public class XslNumberFormat {
40 private String head;
41 private String tail;
42
43 private String []separators;
44 private int []formats;
45 private int []zeroSize;
46
47 private String format;
48 private String lang;
49 private boolean isAlphabetic;
50 private String groupSeparator;
51 private int groupSize;
52
53
62 public XslNumberFormat(String format, String lang, boolean isAlphabetic,
63 String groupSeparator, int groupSize)
64 {
65 this.format = format;
66 this.lang = lang;
67 this.isAlphabetic = isAlphabetic;
68 if (groupSize <= 0) {
69 groupSize = 3;
70 groupSeparator = "";
71 }
72 if (groupSeparator == null)
73 groupSeparator = "";
74 this.groupSeparator = groupSeparator;
75 this.groupSize = groupSize;
76
77 if (format == null)
78 format = "1";
79
80 int headIndex = format.length();
81
82 ArrayList separators = new ArrayList ();
83 IntArray zeroSizes = new IntArray();
84 IntArray formats = new IntArray();
85
86 CharBuffer cb = new CharBuffer();
87 int i = 0;
88 while (i < format.length()) {
89 char ch;
90
91 cb.clear();
93 for (; i < format.length(); i++) {
94 ch = format.charAt(i);
95 if (Character.isLetterOrDigit(ch))
96 break;
97 cb.append(ch);
98 }
99
100 if (head == null)
102 head = cb.toString();
103 else if (i >= format.length())
104 tail = cb.toString();
105 else
106 separators.add(cb.toString());
107
108 if (i >= format.length())
109 break;
110
111 int zeroSize = 1;
113 int code = '0';
114 for (; i < format.length(); i++) {
115 ch = format.charAt(i);
116 if (! Character.isLetterOrDigit(ch))
117 break;
118
119 if (! Character.isDigit(ch)) {
120 if (code != '0' || zeroSize != 1)
121 code = 0;
122 else
123 code = ch;
124 }
125 else if (Character.digit(ch, 10) == 0 && zeroSize >= 0)
126 zeroSize++;
127 else if (Character.digit(ch, 10) == 1)
128 code = ch - 1;
129 else
130 code = 0;
131 }
132 if (code == 0)
133 code = '0';
134
135 zeroSizes.add(zeroSize);
136 formats.add(code);
137 }
138
139 if (formats.size() == 0) {
141 tail = head;
142 head = "";
143 formats.add('0');
144 zeroSizes.add(0);
145 }
146
147 if (separators.size() == 0)
149 separators.add(".");
150 if (separators.size() < formats.size())
151 separators.add(separators.get(separators.size() - 1));
152
153 this.separators = (String []) separators.toArray(new String [separators.size()]);
154 this.zeroSize = zeroSizes.toArray();
155 this.formats = formats.toArray();
156
157 if (head == null)
158 head = "";
159 if (tail == null)
160 tail = "";
161 }
162
163 public String getFormat()
164 {
165 return format;
166 }
167
168 public String getLang()
169 {
170 return lang;
171 }
172
173 public boolean isAlphabetic()
174 {
175 return isAlphabetic;
176 }
177
178 public String getGroupSeparator()
179 {
180 return groupSeparator;
181 }
182
183 public int getGroupSize()
184 {
185 return groupSize;
186 }
187
188
193 void format(XslWriter out, IntArray numbers)
194 {
195 CharBuffer buf = new CharBuffer();
196
197 buf.append(head);
198
199 int i;
200 for (i = numbers.size() - 1; i >= 0; i--) {
201 int index = numbers.size() - i - 1;
202 if (index >= formats.length)
203 index = formats.length - 1;
204
205 char code = (char) formats[index];
206 int zeroCount = zeroSize[index];
207
208 int count = numbers.get(i);
209
210 switch (code) {
211 case 'i':
212 romanize(buf, "mdclxvi", count);
213 break;
214
215 case 'I':
216 romanize(buf, "MDCLXVI", count);
217 break;
218
219 case 'a':
220 formatAlpha(buf, 'a', count);
221 break;
222
223 case 'A':
224 formatAlpha(buf, 'A', count);
225 break;
226
227 default:
228 formatDecimal(buf, code, zeroCount, count);
229 break;
230 }
231
232 if (i > 0)
233 buf.append(separators[index]);
234 }
235
236 buf.append(tail);
237
238 out.print(buf.toString());
239 }
240
241
249 private void romanize(CharBuffer cb, String xvi, int count)
250 {
251 if (count <= 0)
252 throw new RuntimeException ();
253
254 if (count > 5000) {
255 cb.append(count);
256 return;
257 }
258
259 for (; count > 1000; count -= 1000)
260 cb.append(xvi.charAt(0));
261
262 romanize(cb, xvi.charAt(0), xvi.charAt(1), xvi.charAt(2), count / 100);
263 count %= 100;
264 romanize(cb, xvi.charAt(2), xvi.charAt(3), xvi.charAt(4), count / 10);
265 count %= 10;
266 romanize(cb, xvi.charAt(4), xvi.charAt(5), xvi.charAt(6), count);
267 }
268
269
278 private void romanize(CharBuffer cb, char x, char v, char i, int count)
279 {
280 switch (count) {
281 case 0:
282 break;
283 case 1:
284 cb.append(i);
285 break;
286 case 2:
287 cb.append(i);
288 cb.append(i);
289 break;
290 case 3:
291 cb.append(i);
292 cb.append(i);
293 cb.append(i);
294 break;
295 case 4:
296 cb.append(i);
297 cb.append(v);
298 break;
299 case 5:
300 cb.append(v);
301 break;
302 case 6:
303 cb.append(v);
304 cb.append(i);
305 break;
306 case 7:
307 cb.append(v);
308 cb.append(i);
309 cb.append(i);
310 break;
311 case 8:
312 cb.append(v);
313 cb.append(i);
314 cb.append(i);
315 cb.append(i);
316 break;
317 case 9:
318 cb.append(i);
319 cb.append(x);
320 break;
321
322 default:
323 throw new RuntimeException ();
324 }
325 }
326
327
334 private void formatAlpha(CharBuffer cb, char a, int count)
335 {
336 if (count <= 0)
337 throw new RuntimeException ();
338
339 int index = cb.length();
340 while (count > 0) {
341 count--;
342 cb.insert(index, (char) (a + count % 26));
343
344 count /= 26;
345 }
346 }
347
348
356 private void formatDecimal(CharBuffer cb, int code,
357 int zeroCount, int count)
358 {
359 int digits = 0;
360 int index = cb.length();
361 while (count > 0) {
362 if (digits > 0 && digits % groupSize == 0)
363 cb.insert(index, groupSeparator);
364 cb.insert(index, (char) (code + count % 10));
365 count /= 10;
366 digits++;
367 }
368 while (cb.length() - index < zeroCount) {
369 cb.insert(index, (char) code);
370 }
371 }
372 }
373 |
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