1 | /*
|
---|
2 | * SVG Salamander
|
---|
3 | * Copyright (c) 2004, Mark McKay
|
---|
4 | * All rights reserved.
|
---|
5 | *
|
---|
6 | * Redistribution and use in source and binary forms, with or
|
---|
7 | * without modification, are permitted provided that the following
|
---|
8 | * conditions are met:
|
---|
9 | *
|
---|
10 | * - Redistributions of source code must retain the above
|
---|
11 | * copyright notice, this list of conditions and the following
|
---|
12 | * disclaimer.
|
---|
13 | * - Redistributions in binary form must reproduce the above
|
---|
14 | * copyright notice, this list of conditions and the following
|
---|
15 | * disclaimer in the documentation and/or other materials
|
---|
16 | * provided with the distribution.
|
---|
17 | *
|
---|
18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
---|
19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
---|
20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
---|
21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
---|
22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
---|
23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
---|
24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
---|
25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
---|
27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
---|
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
---|
29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
|
---|
30 | *
|
---|
31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
|
---|
32 | * projects can be found at http://www.kitfox.com
|
---|
33 | *
|
---|
34 | * Created on February 18, 2004, 1:49 PM
|
---|
35 | */
|
---|
36 |
|
---|
37 | package com.kitfox.svg.xml;
|
---|
38 |
|
---|
39 | import com.kitfox.svg.SVGConst;
|
---|
40 | import java.awt.*;
|
---|
41 | import java.util.*;
|
---|
42 | import java.util.regex.*;
|
---|
43 | import java.util.logging.Level;
|
---|
44 | import java.util.logging.Logger;
|
---|
45 |
|
---|
46 | /**
|
---|
47 | * @author Mark McKay
|
---|
48 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
|
---|
49 | */
|
---|
50 | public class XMLParseUtil
|
---|
51 | {
|
---|
52 | static final Matcher fpMatch = Pattern.compile("([-+]?((\\d*\\.\\d+)|(\\d+))([eE][+-]?\\d+)?)(\\%|in|cm|mm|pt|pc|px|em|ex)?").matcher("");
|
---|
53 | static final Matcher intMatch = Pattern.compile("[-+]?\\d+").matcher("");
|
---|
54 |
|
---|
55 | /** Creates a new instance of XMLParseUtil */
|
---|
56 | private XMLParseUtil()
|
---|
57 | {
|
---|
58 | }
|
---|
59 |
|
---|
60 | public static String[] parseStringList(String list)
|
---|
61 | {
|
---|
62 | final Matcher matchWs = Pattern.compile("[^\\s]+").matcher("");
|
---|
63 | matchWs.reset(list);
|
---|
64 |
|
---|
65 | LinkedList matchList = new LinkedList();
|
---|
66 | while (matchWs.find())
|
---|
67 | {
|
---|
68 | matchList.add(matchWs.group());
|
---|
69 | }
|
---|
70 |
|
---|
71 | String[] retArr = new String[matchList.size()];
|
---|
72 | return (String[])matchList.toArray(retArr);
|
---|
73 | }
|
---|
74 |
|
---|
75 | public static double parseDouble(String val)
|
---|
76 | {
|
---|
77 | /*
|
---|
78 | if (val == null) return 0.0;
|
---|
79 |
|
---|
80 | double retVal = 0.0;
|
---|
81 | try
|
---|
82 | { retVal = Double.parseDouble(val); }
|
---|
83 | catch (Exception e)
|
---|
84 | {}
|
---|
85 | return retVal;
|
---|
86 | */
|
---|
87 | return findDouble(val);
|
---|
88 | }
|
---|
89 |
|
---|
90 | /**
|
---|
91 | * Searches the given string for the first floating point number it contains,
|
---|
92 | * parses and returns it.
|
---|
93 | */
|
---|
94 | public synchronized static double findDouble(String val)
|
---|
95 | {
|
---|
96 | if (val == null) return 0;
|
---|
97 |
|
---|
98 | fpMatch.reset(val);
|
---|
99 | try
|
---|
100 | {
|
---|
101 | if (!fpMatch.find()) return 0;
|
---|
102 | }
|
---|
103 | catch (StringIndexOutOfBoundsException e)
|
---|
104 | {
|
---|
105 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
106 | "XMLParseUtil: regex parse problem: '" + val + "'", e);
|
---|
107 | }
|
---|
108 |
|
---|
109 | val = fpMatch.group(1);
|
---|
110 | //System.err.println("Parsing " + val);
|
---|
111 |
|
---|
112 | double retVal = 0;
|
---|
113 | try
|
---|
114 | {
|
---|
115 | retVal = Double.parseDouble(val);
|
---|
116 |
|
---|
117 | float pixPerInch;
|
---|
118 | try {
|
---|
119 | pixPerInch = (float)Toolkit.getDefaultToolkit().getScreenResolution();
|
---|
120 | }
|
---|
121 | catch (NoClassDefFoundError err)
|
---|
122 | {
|
---|
123 | //Default value for headless X servers
|
---|
124 | pixPerInch = 72;
|
---|
125 | }
|
---|
126 | final float inchesPerCm = .3936f;
|
---|
127 | final String units = fpMatch.group(6);
|
---|
128 |
|
---|
129 | if ("%".equals(units)) retVal /= 100;
|
---|
130 | else if ("in".equals(units))
|
---|
131 | {
|
---|
132 | retVal *= pixPerInch;
|
---|
133 | }
|
---|
134 | else if ("cm".equals(units))
|
---|
135 | {
|
---|
136 | retVal *= inchesPerCm * pixPerInch;
|
---|
137 | }
|
---|
138 | else if ("mm".equals(units))
|
---|
139 | {
|
---|
140 | retVal *= inchesPerCm * pixPerInch * .1f;
|
---|
141 | }
|
---|
142 | else if ("pt".equals(units))
|
---|
143 | {
|
---|
144 | retVal *= (1f / 72f) * pixPerInch;
|
---|
145 | }
|
---|
146 | else if ("pc".equals(units))
|
---|
147 | {
|
---|
148 | retVal *= (1f / 6f) * pixPerInch;
|
---|
149 | }
|
---|
150 | }
|
---|
151 | catch (Exception e)
|
---|
152 | {}
|
---|
153 | return retVal;
|
---|
154 | }
|
---|
155 |
|
---|
156 | /**
|
---|
157 | * Scans an input string for double values. For each value found, places
|
---|
158 | * in a list. This method regards any characters not part of a floating
|
---|
159 | * point value to be seperators. Thus this will parse whitespace seperated,
|
---|
160 | * comma seperated, and many other separation schemes correctly.
|
---|
161 | */
|
---|
162 | public synchronized static double[] parseDoubleList(String list)
|
---|
163 | {
|
---|
164 | if (list == null) return null;
|
---|
165 |
|
---|
166 | fpMatch.reset(list);
|
---|
167 |
|
---|
168 | LinkedList doubList = new LinkedList();
|
---|
169 | while (fpMatch.find())
|
---|
170 | {
|
---|
171 | String val = fpMatch.group(1);
|
---|
172 | doubList.add(Double.valueOf(val));
|
---|
173 | }
|
---|
174 |
|
---|
175 | double[] retArr = new double[doubList.size()];
|
---|
176 | Iterator it = doubList.iterator();
|
---|
177 | int idx = 0;
|
---|
178 | while (it.hasNext())
|
---|
179 | {
|
---|
180 | retArr[idx++] = ((Double)it.next()).doubleValue();
|
---|
181 | }
|
---|
182 |
|
---|
183 | return retArr;
|
---|
184 | }
|
---|
185 |
|
---|
186 | /**
|
---|
187 | * Searches the given string for the first floating point number it contains,
|
---|
188 | * parses and returns it.
|
---|
189 | */
|
---|
190 | public synchronized static float findFloat(String val)
|
---|
191 | {
|
---|
192 | if (val == null) return 0f;
|
---|
193 |
|
---|
194 | fpMatch.reset(val);
|
---|
195 | if (!fpMatch.find()) return 0f;
|
---|
196 |
|
---|
197 | val = fpMatch.group(1);
|
---|
198 | //System.err.println("Parsing " + val);
|
---|
199 |
|
---|
200 | float retVal = 0f;
|
---|
201 | try
|
---|
202 | {
|
---|
203 | retVal = Float.parseFloat(val);
|
---|
204 | String units = fpMatch.group(6);
|
---|
205 | if ("%".equals(units)) retVal /= 100;
|
---|
206 | }
|
---|
207 | catch (Exception e)
|
---|
208 | {}
|
---|
209 | return retVal;
|
---|
210 | }
|
---|
211 |
|
---|
212 | public synchronized static float[] parseFloatList(String list)
|
---|
213 | {
|
---|
214 | if (list == null) return null;
|
---|
215 |
|
---|
216 | fpMatch.reset(list);
|
---|
217 |
|
---|
218 | LinkedList floatList = new LinkedList();
|
---|
219 | while (fpMatch.find())
|
---|
220 | {
|
---|
221 | String val = fpMatch.group(1);
|
---|
222 | floatList.add(Float.valueOf(val));
|
---|
223 | }
|
---|
224 |
|
---|
225 | float[] retArr = new float[floatList.size()];
|
---|
226 | Iterator it = floatList.iterator();
|
---|
227 | int idx = 0;
|
---|
228 | while (it.hasNext())
|
---|
229 | {
|
---|
230 | retArr[idx++] = ((Float)it.next()).floatValue();
|
---|
231 | }
|
---|
232 |
|
---|
233 | return retArr;
|
---|
234 | }
|
---|
235 |
|
---|
236 | /**
|
---|
237 | * Searches the given string for the first integer point number it contains,
|
---|
238 | * parses and returns it.
|
---|
239 | */
|
---|
240 | public static int findInt(String val)
|
---|
241 | {
|
---|
242 | if (val == null) return 0;
|
---|
243 |
|
---|
244 | intMatch.reset(val);
|
---|
245 | if (!intMatch.find()) return 0;
|
---|
246 |
|
---|
247 | val = intMatch.group();
|
---|
248 |
|
---|
249 | int retVal = 0;
|
---|
250 | try
|
---|
251 | { retVal = Integer.parseInt(val); }
|
---|
252 | catch (Exception e)
|
---|
253 | {}
|
---|
254 | return retVal;
|
---|
255 | }
|
---|
256 |
|
---|
257 | public static int[] parseIntList(String list)
|
---|
258 | {
|
---|
259 | if (list == null) return null;
|
---|
260 |
|
---|
261 | intMatch.reset(list);
|
---|
262 |
|
---|
263 | LinkedList intList = new LinkedList();
|
---|
264 | while (intMatch.find())
|
---|
265 | {
|
---|
266 | String val = intMatch.group();
|
---|
267 | intList.add(Integer.valueOf(val));
|
---|
268 | }
|
---|
269 |
|
---|
270 | int[] retArr = new int[intList.size()];
|
---|
271 | Iterator it = intList.iterator();
|
---|
272 | int idx = 0;
|
---|
273 | while (it.hasNext())
|
---|
274 | {
|
---|
275 | retArr[idx++] = ((Integer)it.next()).intValue();
|
---|
276 | }
|
---|
277 |
|
---|
278 | return retArr;
|
---|
279 | }
|
---|
280 |
|
---|
281 | /**
|
---|
282 | * The input string represents a ratio. Can either be specified as a
|
---|
283 | * double number on the range of [0.0 1.0] or as a percentage [0% 100%]
|
---|
284 | */
|
---|
285 | public static double parseRatio(String val)
|
---|
286 | {
|
---|
287 | if (val == null || val.equals("")) return 0.0;
|
---|
288 |
|
---|
289 | if (val.charAt(val.length() - 1) == '%')
|
---|
290 | {
|
---|
291 | parseDouble(val.substring(0, val.length() - 1));
|
---|
292 | }
|
---|
293 | return parseDouble(val);
|
---|
294 | }
|
---|
295 |
|
---|
296 | public static NumberWithUnits parseNumberWithUnits(String val)
|
---|
297 | {
|
---|
298 | if (val == null) return null;
|
---|
299 |
|
---|
300 | return new NumberWithUnits(val);
|
---|
301 | }
|
---|
302 |
|
---|
303 | /**
|
---|
304 | * Takes a CSS style string and returns a hash of them.
|
---|
305 | * @param styleString - A CSS formatted string of styles. Eg,
|
---|
306 | * "font-size:12;fill:#d32c27;fill-rule:evenodd;stroke-width:1pt;"
|
---|
307 | * @param map - A map to which these styles will be added
|
---|
308 | */
|
---|
309 | public static HashMap parseStyle(String styleString, HashMap map) {
|
---|
310 | final Pattern patSemi = Pattern.compile(";");
|
---|
311 |
|
---|
312 | String[] styles = patSemi.split(styleString);
|
---|
313 |
|
---|
314 | for (int i = 0; i < styles.length; i++)
|
---|
315 | {
|
---|
316 | if (styles[i].length() == 0)
|
---|
317 | {
|
---|
318 | continue;
|
---|
319 | }
|
---|
320 |
|
---|
321 | int colon = styles[i].indexOf(':');
|
---|
322 | if (colon == -1)
|
---|
323 | {
|
---|
324 | continue;
|
---|
325 | }
|
---|
326 |
|
---|
327 | String key = styles[i].substring(0, colon).trim();
|
---|
328 | String value = styles[i].substring(colon + 1).trim();
|
---|
329 |
|
---|
330 | map.put(key, new StyleAttribute(key, value));
|
---|
331 | }
|
---|
332 |
|
---|
333 | return map;
|
---|
334 | }
|
---|
335 | }
|
---|