|
1
19
20 package org.netbeans.modules.languages.lexer;
21
22 import java.util.HashMap  ;
23 import java.util.Iterator ;
24 import java.util.Map ;
25 import org.netbeans.api.languages.LanguagesManager;
26 import org.netbeans.api.languages.ParseException;
27 import org.netbeans.api.lexer.InputAttributes;
28 import org.netbeans.api.lexer.Language;
29 import org.netbeans.api.lexer.LanguagePath;
30 import org.netbeans.api.lexer.Token;
31 import org.netbeans.api.lexer.TokenId;
32 import org.netbeans.modules.languages.Feature;
33 import org.netbeans.modules.languages.LanguagesManagerImpl;
34 import org.netbeans.spi.lexer.LanguageEmbedding;
35 import org.netbeans.spi.lexer.LanguageProvider;
36
37
38
42 public class SLanguageProvider extends LanguageProvider {
43
44
45 public SLanguageProvider () {
46 }
47
48 public Language<STokenId> findLanguage (String mimePath) {
49 if (LanguagesManager.getDefault ().getSupportedMimeTypes ().contains (mimePath))
51 return new SLanguageHierarchy (mimePath).language ();
52 return null;
53 }
54
55 public LanguageEmbedding<? extends TokenId> findLanguageEmbedding (
56 Token token,
57 LanguagePath languagePath,
58 InputAttributes inputAttributes
59 ) {
60 String mimeType = languagePath.innerLanguage ().mimeType ();
61 Language<STokenId> language = getTokenImport (mimeType, token);
62 if (language == null)
63 language = getPreprocessorImport (languagePath, token);
64 if (language == null) return null;
65 Integer i = (Integer ) token.getProperty ("startSkipLength");
66 int startSkipLength = i == null ? 0 : i.intValue ();
67 i = (Integer ) token.getProperty ("endSkipLength");
68 int endSkipLength = i == null ? 0 : i.intValue ();
69 return LanguageEmbedding.create (
70 language,
71 startSkipLength,
72 endSkipLength
73 );
74 }
75
76
77
79 private static Map <String ,Language<STokenId>> preprocessorImport = new HashMap <String ,Language<STokenId>> ();
80
81 private static Language<STokenId> getPreprocessorImport (LanguagePath languagePath, Token token) {
82 String tokenType = token.id ().name ();
83 if (!tokenType.equals ("PE")) return null;
84 String mimeType = languagePath.topLanguage ().mimeType ();
85 if (!preprocessorImport.containsKey (mimeType)) {
86 try {
87 org.netbeans.modules.languages.Language language =
88 ((LanguagesManagerImpl) LanguagesManager.getDefault ()).
89 getLanguage (mimeType);
90 Feature properties = language.getPreprocessorImport ();
91 if (properties != null) {
92 String innerMT = (String ) properties.getValue ("mimeType");
93 preprocessorImport.put (
94 mimeType,
95 (Language<STokenId>)Language.find (innerMT)
96 );
97 }
98 } catch (ParseException ex) {
99 }
100 }
101 return preprocessorImport.get (mimeType);
102 }
103
104 private static Map <String ,Map <String ,Language<STokenId>>> tokenImports = new HashMap <String ,Map <String ,Language<STokenId>>> ();
105
106 private static Language<STokenId> getTokenImport (String mimeType, Token token) {
107 String tokenType = token.id ().name ();
108 Map <String ,Language<STokenId>> tokenTypeToLanguage = tokenImports.get (mimeType);
109 if (tokenTypeToLanguage == null) {
110 tokenTypeToLanguage = new HashMap <String ,Language<STokenId>> ();
111 tokenImports.put (mimeType, tokenTypeToLanguage);
112 try {
113 org.netbeans.modules.languages.Language language =
114 ((LanguagesManagerImpl) LanguagesManager.getDefault ()).
115 getLanguage (mimeType);
116 Map <String ,Feature> tokenImports = language.getTokenImports ();
117 if (tokenImports != null) {
118 Iterator <String > it = tokenImports.keySet ().iterator ();
119 while (it.hasNext ()) {
120 String tokenType2 = it.next ();
121 Feature properties = tokenImports.get (tokenType2);
122 String innerMT = (String ) properties.getValue ("mimeType");
123 tokenTypeToLanguage.put (
124 tokenType2,
125 (Language<STokenId>) Language.find (innerMT)
126 );
127 }
128 }
129 } catch (ParseException ex) {
130 }
131 }
132 return tokenTypeToLanguage.get (tokenType);
133 }
134 }
135 |
Popular Tags |
Java API By Example, From Geeks To Geeks.