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comparison core/src/luan/modules/parsers/BBCode.java @ 637:6ea90dc10375

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bbcode parser now takes a quoter function
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 03 Mar 2016 12:38:24 -0700
parents 5fdbefa80146
children 3ab4f282f0bd
comparison
equal deleted inserted replaced
636:13b390bfed32 637:6ea90dc10375
1 package luan.modules.parsers; 1 package luan.modules.parsers;
2 2
3 import java.util.List;
4 import java.util.ArrayList;
5 import luan.Luan;
6 import luan.LuanState;
7 import luan.LuanFunction;
8 import luan.LuanException;
9 import luan.modules.Utils;
10
3 11
4 public final class BBCode { 12 public final class BBCode {
5 13
6 public static String toHtml(String bbcode) { 14 public static String toHtml(LuanState luan,String bbcode,LuanFunction quoter) throws LuanException {
7 return new BBCode(bbcode,true).parse(); 15 return new BBCode(luan,bbcode,true,quoter).parse();
8 } 16 }
9 17
10 public static String toText(String bbcode) { 18 public static String toText(LuanState luan,String bbcode,LuanFunction quoter) throws LuanException {
11 return new BBCode(bbcode,false).parse(); 19 return new BBCode(luan,bbcode,false,quoter).parse();
12 } 20 }
13 21
22 private final LuanState luan;
14 private final Parser parser; 23 private final Parser parser;
15 private final boolean toHtml; 24 private final boolean toHtml;
16 25 private final LuanFunction quoter;
17 private BBCode(String text,boolean toHtml) { 26
27 private BBCode(LuanState luan,String text,boolean toHtml,LuanFunction quoter) throws LuanException {
28 Utils.checkNotNull(luan,text,1);
29 Utils.checkNotNull(luan,quoter,3);
30 this.luan = luan;
18 this.parser = new Parser(text); 31 this.parser = new Parser(text);
19 this.toHtml = toHtml; 32 this.toHtml = toHtml;
20 } 33 this.quoter = quoter;
21 34 }
22 private String parse() { 35
36 private String parse() throws LuanException {
23 StringBuilder sb = new StringBuilder(); 37 StringBuilder sb = new StringBuilder();
24 while( !parser.endOfInput() ) { 38 while( !parser.endOfInput() ) {
25 String block = parseBlock(); 39 String block = parseBlock();
26 if( block != null ) 40 if( block != null )
27 sb.append(block); 41 sb.append(block);
31 } 45 }
32 } 46 }
33 return sb.toString(); 47 return sb.toString();
34 } 48 }
35 49
36 private String parseWellFormed() { 50 private String parseWellFormed() throws LuanException {
37 StringBuilder sb = new StringBuilder(); 51 StringBuilder sb = new StringBuilder();
38 while( !parser.endOfInput() ) { 52 while( !parser.endOfInput() ) {
39 String block = parseBlock(); 53 String block = parseBlock();
40 if( block != null ) { 54 if( block != null ) {
41 sb.append(block); 55 sb.append(block);
75 || parser.testIgnoreCase("[quote=") 89 || parser.testIgnoreCase("[quote=")
76 || parser.testIgnoreCase("[/quote]") 90 || parser.testIgnoreCase("[/quote]")
77 ; 91 ;
78 } 92 }
79 93
80 private String parseBlock() { 94 private String parseBlock() throws LuanException {
81 if( parser.currentChar() != '[' ) 95 if( parser.currentChar() != '[' )
82 return null; 96 return null;
83 String s; 97 String s;
84 s = parseB(); if(s!=null) return s; 98 s = parseB(); if(s!=null) return s;
85 s = parseI(); if(s!=null) return s; 99 s = parseI(); if(s!=null) return s;
94 s = parseQuote1(); if(s!=null) return s; 108 s = parseQuote1(); if(s!=null) return s;
95 s = parseQuote2(); if(s!=null) return s; 109 s = parseQuote2(); if(s!=null) return s;
96 return null; 110 return null;
97 } 111 }
98 112
99 private String parseB() { 113 private String parseB() throws LuanException {
100 parser.begin(); 114 parser.begin();
101 if( !parser.matchIgnoreCase("[b]") ) 115 if( !parser.matchIgnoreCase("[b]") )
102 return parser.failure(null); 116 return parser.failure(null);
103 String content = parseWellFormed(); 117 String content = parseWellFormed();
104 if( !parser.matchIgnoreCase("[/b]") ) 118 if( !parser.matchIgnoreCase("[/b]") )
105 return parser.failure(null); 119 return parser.failure(null);
106 String rtn = toHtml ? "<b>"+content+"</b>" : content; 120 String rtn = toHtml ? "<b>"+content+"</b>" : content;
107 return parser.success(rtn); 121 return parser.success(rtn);
108 } 122 }
109 123
110 private String parseI() { 124 private String parseI() throws LuanException {
111 parser.begin(); 125 parser.begin();
112 if( !parser.matchIgnoreCase("[i]") ) 126 if( !parser.matchIgnoreCase("[i]") )
113 return parser.failure(null); 127 return parser.failure(null);
114 String content = parseWellFormed(); 128 String content = parseWellFormed();
115 if( !parser.matchIgnoreCase("[/i]") ) 129 if( !parser.matchIgnoreCase("[/i]") )
116 return parser.failure(null); 130 return parser.failure(null);
117 String rtn = toHtml ? "<i>"+content+"</i>" : content; 131 String rtn = toHtml ? "<i>"+content+"</i>" : content;
118 return parser.success(rtn); 132 return parser.success(rtn);
119 } 133 }
120 134
121 private String parseU() { 135 private String parseU() throws LuanException {
122 parser.begin(); 136 parser.begin();
123 if( !parser.matchIgnoreCase("[u]") ) 137 if( !parser.matchIgnoreCase("[u]") )
124 return parser.failure(null); 138 return parser.failure(null);
125 String content = parseWellFormed(); 139 String content = parseWellFormed();
126 if( !parser.matchIgnoreCase("[/u]") ) 140 if( !parser.matchIgnoreCase("[/u]") )
138 return parser.failure(null); 152 return parser.failure(null);
139 String rtn = toHtml ? "<a href='"+url+"'>"+url+"</u>" : url; 153 String rtn = toHtml ? "<a href='"+url+"'>"+url+"</u>" : url;
140 return parser.success(rtn); 154 return parser.success(rtn);
141 } 155 }
142 156
143 private String parseUrl2() { 157 private String parseUrl2() throws LuanException {
144 parser.begin(); 158 parser.begin();
145 if( !parser.matchIgnoreCase("[url=") ) 159 if( !parser.matchIgnoreCase("[url=") )
146 return parser.failure(null); 160 return parser.failure(null);
147 String url = parseRealUrl(); 161 String url = parseRealUrl();
148 if( !parser.match(']') ) 162 if( !parser.match(']') )
193 return parser.failure(null); 207 return parser.failure(null);
194 String rtn = toHtml ? "<img src='"+url+"'>" : ""; 208 String rtn = toHtml ? "<img src='"+url+"'>" : "";
195 return parser.success(rtn); 209 return parser.success(rtn);
196 } 210 }
197 211
198 private String parseColor() { 212 private String parseColor() throws LuanException {
199 parser.begin(); 213 parser.begin();
200 if( !parser.matchIgnoreCase("[color=") ) 214 if( !parser.matchIgnoreCase("[color=") )
201 return parser.failure(null); 215 return parser.failure(null);
202 int start = parser.currentIndex(); 216 int start = parser.currentIndex();
203 parser.match('#'); 217 parser.match('#');
213 return parser.failure(null); 227 return parser.failure(null);
214 String rtn = toHtml ? "<span style='color: "+color+"'>"+content+"</span>" : content; 228 String rtn = toHtml ? "<span style='color: "+color+"'>"+content+"</span>" : content;
215 return parser.success(rtn); 229 return parser.success(rtn);
216 } 230 }
217 231
218 private String parseSize() { 232 private String parseSize() throws LuanException {
219 parser.begin(); 233 parser.begin();
220 if( !parser.matchIgnoreCase("[size=") ) 234 if( !parser.matchIgnoreCase("[size=") )
221 return parser.failure(null); 235 return parser.failure(null);
222 int start = parser.currentIndex(); 236 int start = parser.currentIndex();
223 while( parser.match('.') || parser.inCharRange('0','9') ); 237 while( parser.match('.') || parser.inCharRange('0','9') );
247 return parser.failure(null); 261 return parser.failure(null);
248 String rtn = toHtml ? "<iframe width='420' height='315' src='https://www.youtube.com/embed/"+id+"' frameborder='0' allowfullscreen></iframe>" : ""; 262 String rtn = toHtml ? "<iframe width='420' height='315' src='https://www.youtube.com/embed/"+id+"' frameborder='0' allowfullscreen></iframe>" : "";
249 return parser.success(rtn); 263 return parser.success(rtn);
250 } 264 }
251 265
252 private String parseQuote1() { 266 private String quote(Object... args) throws LuanException {
267 Object obj = quoter.call(luan,args);
268 if( !(obj instanceof String) )
269 throw new LuanException(luan,"BBCode quoter function returned "+Luan.type(obj)+" but string required");
270 return (String)obj;
271 }
272
273 private String parseQuote1() throws LuanException {
253 parser.begin(); 274 parser.begin();
254 if( !parser.matchIgnoreCase("[quote]") ) 275 if( !parser.matchIgnoreCase("[quote]") )
255 return parser.failure(null); 276 return parser.failure(null);
256 String content = parseWellFormed(); 277 String content = parseWellFormed();
257 if( !parser.matchIgnoreCase("[/quote]") ) 278 if( !parser.matchIgnoreCase("[/quote]") )
258 return parser.failure(null); 279 return parser.failure(null);
259 String rtn = toHtml ? "<blockquote>"+content+"</blockquote>" : ""; 280 String rtn = quote(content);
260 return parser.success(rtn); 281 return parser.success(rtn);
261 } 282 }
262 283
263 private String parseQuote2() { 284 private String parseQuote2() throws LuanException {
264 parser.begin(); 285 parser.begin();
265 if( !parser.matchIgnoreCase("[quote=") ) 286 if( !parser.matchIgnoreCase("[quote=") )
266 return parser.failure(null); 287 return parser.failure(null);
288 List args = new ArrayList();
267 int start = parser.currentIndex(); 289 int start = parser.currentIndex();
268 while( parser.noneOf("[];") ); 290 while( parser.noneOf("[];") );
269 String name = parser.textFrom(start).trim(); 291 String name = parser.textFrom(start).trim();
270 if( name.length() == 0 ) 292 if( name.length() == 0 )
271 return parser.failure(null); 293 return parser.failure(null);
272 String src = null; 294 args.add(name);
273 if( parser.match(';') ) { 295 while( parser.match(';') ) {
274 start = parser.currentIndex(); 296 start = parser.currentIndex();
275 while( parser.noneOf("[]'") ); 297 while( parser.noneOf("[];'") );
276 src = parser.textFrom(start).trim(); 298 String src = parser.textFrom(start).trim();
277 if( src.length() == 0 ) 299 args.add(src);
278 return parser.failure(null);
279 } 300 }
280 if( !parser.match(']') ) 301 if( !parser.match(']') )
281 return parser.failure(null); 302 return parser.failure(null);
282 String content = parseWellFormed(); 303 String content = parseWellFormed();
304 args.add(0,content);
283 if( !parser.matchIgnoreCase("[/quote]") ) 305 if( !parser.matchIgnoreCase("[/quote]") )
284 return parser.failure(null); 306 return parser.failure(null);
285 if( !toHtml ) 307 String rtn = quote(args.toArray());
286 return parser.success(""); 308 return parser.success(rtn);
287 StringBuilder sb = new StringBuilder();
288 sb.append( "<blockquote><div quoted>" );
289 if( src != null )
290 sb.append( "<a href='/thread?id=" ).append( src ).append( "'>" );
291 sb.append( "<span quoted>" ).append( name ).append( "</span>" );
292 if( src != null )
293 sb.append( "</a>" );
294 sb.append( "</div>" ).append( content ).append( "</blockquote>" );
295 return parser.success(sb.toString());
296 } 309 }
297 310
298 } 311 }