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| 1 | +/* |
| 2 | + * Nextcloud - Android Client |
| 3 | + * |
| 4 | + * SPDX-FileCopyrightText: Copyright 2019 Dimitry Ivanov (legal@noties.io) |
| 5 | + * SPDX-License-Identifier: Apache-2.0 |
| 6 | + */ |
| 7 | + |
| 8 | +package third_parties.io.noties.prism4j.languages; |
| 9 | + |
| 10 | +import org.jetbrains.annotations.NotNull; |
| 11 | +import org.jetbrains.annotations.Nullable; |
| 12 | + |
| 13 | +import java.util.HashMap; |
| 14 | +import java.util.HashSet; |
| 15 | +import java.util.List; |
| 16 | +import java.util.Map; |
| 17 | +import java.util.Set; |
| 18 | + |
| 19 | +import io.noties.prism4j.GrammarLocator; |
| 20 | +import io.noties.prism4j.Prism4j; |
| 21 | + |
| 22 | +public class MarkwonGrammarLocator implements GrammarLocator { |
| 23 | + |
| 24 | + @SuppressWarnings("ConstantConditions") |
| 25 | + private static final Prism4j.Grammar NULL = |
| 26 | + new Prism4j.Grammar() { |
| 27 | + @NotNull |
| 28 | + @Override |
| 29 | + public String name() { |
| 30 | + return null; |
| 31 | + } |
| 32 | + |
| 33 | + @NotNull |
| 34 | + @Override |
| 35 | + public List<Prism4j.Token> tokens() { |
| 36 | + return null; |
| 37 | + } |
| 38 | + }; |
| 39 | + |
| 40 | + private final Map<String, Prism4j.Grammar> cache = new HashMap<>(3); |
| 41 | + |
| 42 | + @Nullable |
| 43 | + @Override |
| 44 | + public Prism4j.Grammar grammar(@NotNull Prism4j prism4j, @NotNull String language) { |
| 45 | + |
| 46 | + final String name = realLanguageName(language); |
| 47 | + |
| 48 | + Prism4j.Grammar grammar = cache.get(name); |
| 49 | + if (grammar != null) { |
| 50 | + if (NULL == grammar) { |
| 51 | + grammar = null; |
| 52 | + } |
| 53 | + return grammar; |
| 54 | + } |
| 55 | + |
| 56 | + grammar = obtainGrammar(prism4j, name); |
| 57 | + if (grammar == null) { |
| 58 | + cache.put(name, NULL); |
| 59 | + } else { |
| 60 | + cache.put(name, grammar); |
| 61 | + triggerModify(prism4j, name); |
| 62 | + } |
| 63 | + |
| 64 | + return grammar; |
| 65 | + } |
| 66 | + |
| 67 | + @NotNull |
| 68 | + protected String realLanguageName(@NotNull String name) { |
| 69 | + final String out; |
| 70 | + switch (name) { |
| 71 | + case "dotnet": |
| 72 | + out = "csharp"; |
| 73 | + break; |
| 74 | + case "js": |
| 75 | + out = "javascript"; |
| 76 | + break; |
| 77 | + case "jsonp": |
| 78 | + out = "json"; |
| 79 | + break; |
| 80 | + case "xml": |
| 81 | + case "html": |
| 82 | + case "mathml": |
| 83 | + case "svg": |
| 84 | + out = "markup"; |
| 85 | + break; |
| 86 | + default: |
| 87 | + out = name; |
| 88 | + } |
| 89 | + return out; |
| 90 | + } |
| 91 | + |
| 92 | + @Nullable |
| 93 | + protected Prism4j.Grammar obtainGrammar(@NotNull Prism4j prism4j, @NotNull String name) { |
| 94 | + final Prism4j.Grammar grammar; |
| 95 | + switch (name) { |
| 96 | + case "c": |
| 97 | + grammar = Prism_c.create(prism4j); |
| 98 | + break; |
| 99 | + case "clike": |
| 100 | + grammar = Prism_clike.create(prism4j); |
| 101 | + break; |
| 102 | + case "clojure": |
| 103 | + grammar = Prism_clojure.create(prism4j); |
| 104 | + break; |
| 105 | + case "cpp": |
| 106 | + grammar = Prism_cpp.create(prism4j); |
| 107 | + break; |
| 108 | + case "csharp": |
| 109 | + grammar = Prism_csharp.create(prism4j); |
| 110 | + break; |
| 111 | + case "css": |
| 112 | + grammar = Prism_css.create(prism4j); |
| 113 | + break; |
| 114 | + case "dart": |
| 115 | + grammar = Prism_dart.create(prism4j); |
| 116 | + break; |
| 117 | + case "git": |
| 118 | + grammar = Prism_git.create(prism4j); |
| 119 | + break; |
| 120 | + case "go": |
| 121 | + grammar = Prism_go.create(prism4j); |
| 122 | + break; |
| 123 | + case "groovy": |
| 124 | + grammar = Prism_groovy.create(prism4j); |
| 125 | + break; |
| 126 | + case "java": |
| 127 | + grammar = Prism_java.create(prism4j); |
| 128 | + break; |
| 129 | + case "javascript": |
| 130 | + grammar = Prism_javascript.create(prism4j); |
| 131 | + break; |
| 132 | + case "json": |
| 133 | + grammar = Prism_json.create(prism4j); |
| 134 | + break; |
| 135 | + case "kotlin": |
| 136 | + grammar = Prism_kotlin.create(prism4j); |
| 137 | + break; |
| 138 | + case "latex": |
| 139 | + grammar = Prism_latex.create(prism4j); |
| 140 | + break; |
| 141 | + case "makefile": |
| 142 | + grammar = Prism_makefile.create(prism4j); |
| 143 | + break; |
| 144 | + case "markdown": |
| 145 | + grammar = Prism_markdown.create(prism4j); |
| 146 | + break; |
| 147 | + case "markup": |
| 148 | + grammar = Prism_markup.create(prism4j); |
| 149 | + break; |
| 150 | + case "python": |
| 151 | + grammar = Prism_python.create(prism4j); |
| 152 | + break; |
| 153 | + case "scala": |
| 154 | + grammar = Prism_scala.create(prism4j); |
| 155 | + break; |
| 156 | + case "sql": |
| 157 | + grammar = Prism_sql.create(prism4j); |
| 158 | + break; |
| 159 | + case "swift": |
| 160 | + grammar = Prism_swift.create(prism4j); |
| 161 | + break; |
| 162 | + case "yaml": |
| 163 | + grammar = Prism_yaml.create(prism4j); |
| 164 | + break; |
| 165 | + default: |
| 166 | + grammar = null; |
| 167 | + } |
| 168 | + return grammar; |
| 169 | + } |
| 170 | + |
| 171 | + protected void triggerModify(@NotNull Prism4j prism4j, @NotNull String name) { |
| 172 | + switch (name) { |
| 173 | + case "markup": |
| 174 | + prism4j.grammar("css"); |
| 175 | + prism4j.grammar("javascript"); |
| 176 | + break; |
| 177 | + } |
| 178 | + } |
| 179 | + |
| 180 | + @Override |
| 181 | + @NotNull |
| 182 | + public Set<String> languages() { |
| 183 | + final Set<String> set = new HashSet<String>(23); |
| 184 | + set.add("c"); |
| 185 | + set.add("clike"); |
| 186 | + set.add("clojure"); |
| 187 | + set.add("cpp"); |
| 188 | + set.add("csharp"); |
| 189 | + set.add("css"); |
| 190 | + set.add("dart"); |
| 191 | + set.add("git"); |
| 192 | + set.add("go"); |
| 193 | + set.add("groovy"); |
| 194 | + set.add("java"); |
| 195 | + set.add("javascript"); |
| 196 | + set.add("json"); |
| 197 | + set.add("kotlin"); |
| 198 | + set.add("latex"); |
| 199 | + set.add("makefile"); |
| 200 | + set.add("markdown"); |
| 201 | + set.add("markup"); |
| 202 | + set.add("python"); |
| 203 | + set.add("scala"); |
| 204 | + set.add("sql"); |
| 205 | + set.add("swift"); |
| 206 | + set.add("yaml"); |
| 207 | + return set; |
| 208 | + } |
| 209 | +} |
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