Mercurial Hosting > luan

comparison src/luan/modules/HtmlLuan.java @ 1712:36c28be6d432

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
improve html and bbcode
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 14 Jul 2022 22:14:21 -0600
parents 21f5edab1fbf
children 31a82b0d0a87
comparison
equal deleted inserted replaced
1711:05d14db623b6 1712:36c28be6d432
1 package luan.modules; 1 package luan.modules;
2 2
3 import java.util.List; 3 import java.util.List;
4 import java.util.ArrayList; 4 import java.util.ArrayList;
5 import java.util.Arrays;
6 import java.util.Set; 5 import java.util.Set;
7 import java.util.HashSet; 6 import java.util.HashSet;
8 import java.util.Map; 7 import goodjava.html.Html;
9 import java.util.regex.Pattern;
10 import java.util.regex.Matcher;
11 import luan.Luan;
12 import luan.LuanTable; 8 import luan.LuanTable;
13 import luan.LuanException; 9 import luan.LuanException;
14 10
15 11
16 public final class HtmlLuan { 12 public final class HtmlLuan {
17 13
18 public static String encode(String s) throws LuanException { 14 public static String encode(String s) throws LuanException {
19 Utils.checkNotNull(s); 15 Utils.checkNotNull(s);
20 final char[] a = s.toCharArray(); 16 return Html.encode(s);
21 StringBuilder buf = new StringBuilder();
22 for( char c : a ) {
23 switch(c) {
24 case '&':
25 buf.append("&amp;");
26 break;
27 case '<':
28 buf.append("&lt;");
29 break;
30 case '>':
31 buf.append("&gt;");
32 break;
33 case '"':
34 buf.append("&quot;");
35 break;
36 default:
37 buf.append(c);
38 }
39 }
40 return buf.toString();
41 } 17 }
42 18
43 private static final Pattern entityPtn = Pattern.compile(
44 "&#(\\d+);"
45 );
46
47 public static String decode(String s) { 19 public static String decode(String s) {
48 StringBuffer buf = new StringBuffer(); 20 return Html.decode(s);
49 Matcher m = entityPtn.matcher(s);
50 while( m.find() ) {
51 String entity = new String(new char[]{(char)Integer.parseInt(m.group(1))});
52 m.appendReplacement(buf,entity);
53 }
54 m.appendTail(buf);
55 s = buf.toString();
56 s = s.replace("&nbsp;"," ");
57 s = s.replace("&quot;","\"");
58 s = s.replace("&gt;",">");
59 s = s.replace("&lt;","<");
60 s = s.replace("&amp;","&");
61 return s;
62 } 21 }
63 22
64 public static String quote(String s) { 23 private static LuanTable tag(Html.Tag tag) throws LuanException {
65 StringBuilder buf = new StringBuilder(); 24 LuanTable tbl = new LuanTable();
66 buf.append('"'); 25 tbl.rawPut("type","tag");
67 int i = 0; 26 tbl.rawPut("name",tag.name);
68 while(true) { 27 tbl.rawPut("attributes",new LuanTable(tag.attributes));
69 int i2 = s.indexOf('"',i); 28 tbl.rawPut("is_empty",tag.isEmpty);
70 if( i2 == -1 ) { 29 tbl.rawPut("raw",tag.raw);
71 buf.append(s.substring(i)); 30 return tbl;
72 break; 31 }
73 } else { 32 public static LuanTable parse(String text,LuanTable containerTagsTbl) {
74 buf.append(s.substring(i,i2)); 33 try {
75 buf.append("&quot;"); 34 Set<String> containerTags = new HashSet();
76 i = i2 + 1; 35 for( Object s : containerTagsTbl.asList() ) {
36 containerTags.add((String)s);
77 } 37 }
38 List list = Html.parse(text,containerTags);
39 List rtn = new ArrayList();
40 for( Object el : list ) {
41 if( el instanceof String ) {
42 rtn.add(el);
43 } else if( el instanceof Html.Tag ) {
44 Html.Tag tag = (Html.Tag)el;
45 rtn.add(tag(tag));
46 } else if( el instanceof Html.Comment ) {
47 Html.Comment comment = (Html.Comment)el;
48 LuanTable tbl = new LuanTable();
49 tbl.rawPut("type","comment");
50 tbl.rawPut("text",comment.text);
51 rtn.add(tbl);
52 } else if( el instanceof Html.CData ) {
53 Html.CData cdata = (Html.CData)el;
54 LuanTable tbl = new LuanTable();
55 tbl.rawPut("type","cdata");
56 tbl.rawPut("text",cdata.text);
57 rtn.add(tbl);
58 } else if( el instanceof Html.Container ) {
59 Html.Container container = (Html.Container)el;
60 LuanTable tbl = new LuanTable();
61 tbl.rawPut("type","container");
62 tbl.rawPut("tag",tag(container.tag));
63 tbl.rawPut("text",container.text);
64 rtn.add(tbl);
65 } else {
66 throw new RuntimeException("invalid el "+el);
67 }
68 }
69 return new LuanTable(rtn);
70 } catch(LuanException e) {
71 throw new RuntimeException(e);
78 } 72 }
79 buf.append('"');
80 return buf.toString();
81 } 73 }
82 74
83 } 75 }