feat(zon): Code completion
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6 changed files with 171 additions and 20 deletions
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@ -25,6 +25,7 @@ Changelog structure reference:
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- Basic syntax highlighting
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- Color settings page
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- Brace matching
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- Code completion
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## [0.4.0]
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@ -0,0 +1,86 @@
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/*
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* Copyright 2023 FalsePattern
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.falsepattern.zigbrains.zon.completion;
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import com.falsepattern.zigbrains.zon.parser.ZonFile;
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import com.falsepattern.zigbrains.zon.psi.ZonProperty;
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import com.falsepattern.zigbrains.zon.psi.ZonPropertyPlaceholder;
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import com.falsepattern.zigbrains.zon.psi.ZonStruct;
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import com.falsepattern.zigbrains.zon.psi.ZonTypes;
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import com.falsepattern.zigbrains.zon.psi.impl.ZonPsiImplUtil;
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import com.intellij.codeInsight.completion.CompletionContributor;
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import com.intellij.codeInsight.completion.CompletionParameters;
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import com.intellij.codeInsight.completion.CompletionProvider;
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import com.intellij.codeInsight.completion.CompletionResultSet;
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import com.intellij.codeInsight.completion.CompletionType;
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import com.intellij.codeInsight.lookup.LookupElementBuilder;
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import com.intellij.patterns.PlatformPatterns;
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import com.intellij.util.ProcessingContext;
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import org.jetbrains.annotations.NotNull;
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import java.util.List;
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import java.util.Set;
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public class ZonCompletionContributor extends CompletionContributor {
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private static final List<String> ZON_ROOT_KEYS = List.of("name", "version", "dependencies");
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private static final List<String> ZON_DEP_KEYS = List.of("url", "hash");
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public ZonCompletionContributor() {
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extend(CompletionType.BASIC,
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PlatformPatterns.psiElement()
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.withParent(PlatformPatterns.psiElement(ZonTypes.PROPERTY_PLACEHOLDER))
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.withSuperParent(3, PlatformPatterns.psiElement(ZonFile.class)),
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new CompletionProvider<>() {
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@Override
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protected void addCompletions(@NotNull CompletionParameters parameters, @NotNull ProcessingContext context, @NotNull CompletionResultSet result) {
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var placeholder = (ZonPropertyPlaceholder) parameters.getPosition().getParent();
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var zonStruct = (ZonStruct) placeholder.getParent();
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var keys = ZonPsiImplUtil.getKeys(zonStruct);
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doAddCompletions(placeholder.getText().startsWith("."), keys, ZON_ROOT_KEYS, result);
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}
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});
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extend(CompletionType.BASIC,
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PlatformPatterns.psiElement()
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.withParent(PlatformPatterns.psiElement(ZonTypes.PROPERTY_PLACEHOLDER))
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.withSuperParent(3, PlatformPatterns.psiElement(ZonTypes.VALUE))
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.withSuperParent(6, PlatformPatterns.psiElement(ZonTypes.VALUE))
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.withSuperParent(9, PlatformPatterns.psiElement(ZonFile.class)),
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new CompletionProvider<>() {
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@Override
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protected void addCompletions(@NotNull CompletionParameters parameters, @NotNull ProcessingContext context, @NotNull CompletionResultSet result) {
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var placeholder = (ZonPropertyPlaceholder) parameters.getPosition().getParent();
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var depStruct = (ZonStruct) placeholder.getParent();
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var parentProperty = (ZonProperty) depStruct.getParent()
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.getParent()
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.getParent()
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.getParent()
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.getParent();
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if (!"dependencies".equals(ZonPsiImplUtil.getText(parentProperty.getIdentifier()))) {
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return;
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}
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doAddCompletions(placeholder.getText().startsWith("."), ZonPsiImplUtil.getKeys(depStruct), ZON_DEP_KEYS, result);
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}
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});
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}
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private static void doAddCompletions(boolean hasDot, Set<String> current, List<String> expected, CompletionResultSet result) {
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for (var key: expected) {
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if (current.contains(key)) {
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continue;
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}
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result.addElement(LookupElementBuilder.create(hasDot ? key : "." + key));
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}
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}
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}
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@ -34,27 +34,42 @@ WHITE_SPACE=[\s]+
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LINE_COMMENT="//" [^\n]* | "////" [^\n]*
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COMMENT="///".*
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ID=[A-Za-z_][A-Za-z0-9_]* | "@\"" {STRING_CHAR}* \"
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ID=[A-Za-z_][A-Za-z0-9_]*
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STRING_CHAR=( [^\\\"] | \\[^] )
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STRING_LITERAL_SINGLE=\"{STRING_CHAR}*\"
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LINE_STRING=(\\\\ [^\n]* [ \n]*)+
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hex=[0-9a-fA-F]
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char_escape
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= "\\x" {hex} {hex}
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| "\\u{" {hex}+ "}"
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| "\\" [nr\\t'\"]
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string_char
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= {char_escape}
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| [^\\\"\n]
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LINE_STRING=("\\\\" [^\n]* [ \n]*)+
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%state STRING_LITERAL
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%state ID_STRING
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%%
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<YYINITIAL> {
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{WHITE_SPACE} { return WHITE_SPACE; }
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"." { return DOT; }
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"{" { return LBRACE; }
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"}" { return RBRACE; }
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"=" { return EQ; }
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"," { return COMMA; }
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{COMMENT} { return COMMENT; }
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{LINE_COMMENT} { return COMMENT; }
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{ID} { return ID; }
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{STRING_LITERAL_SINGLE} { return STRING_LITERAL_SINGLE; }
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{LINE_STRING} { return LINE_STRING; }
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}
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<YYINITIAL> {WHITE_SPACE} { return WHITE_SPACE; }
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<YYINITIAL> "." { return DOT; }
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<YYINITIAL> "IntellijIdeaRulezzz" { return INTELLIJ_COMPLETION_DUMMY; }
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<YYINITIAL> "{" { return LBRACE; }
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<YYINITIAL> "}" { return RBRACE; }
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<YYINITIAL> "=" { return EQ; }
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<YYINITIAL> "," { return COMMA; }
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<YYINITIAL> {COMMENT} { return COMMENT; }
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<YYINITIAL> {LINE_COMMENT} { return COMMENT; }
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[^] { return BAD_CHARACTER; }
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<YYINITIAL> {ID} { return ID; }
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<YYINITIAL> "@\"" { yybegin(ID_STRING); }
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<ID_STRING> {string_char}*"\"" { yybegin(YYINITIAL); return ID; }
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<YYINITIAL> "\"" { yybegin(STRING_LITERAL); }
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<STRING_LITERAL> {string_char}*"\"" { yybegin(YYINITIAL); return STRING_LITERAL_SINGLE; }
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<YYINITIAL> {LINE_STRING} { return LINE_STRING; }
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[^] { yybegin(YYINITIAL); return BAD_CHARACTER; }
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@ -42,9 +42,13 @@
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zonFile ::= struct
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struct ::= DOT LBRACE (property (COMMA property)* COMMA?)? RBRACE
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struct ::= DOT LBRACE (property COMMA | property_placeholder COMMA?)* property? RBRACE
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property ::= DOT ID EQ value
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property ::= DOT identifier EQ value
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identifier ::= ID
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property_placeholder ::= DOT? INTELLIJ_COMPLETION_DUMMY
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value ::= struct | STRING_LITERAL
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@ -0,0 +1,42 @@
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/*
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* Copyright 2023 FalsePattern
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.falsepattern.zigbrains.zon.psi.impl;
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import com.falsepattern.zigbrains.zon.psi.ZonIdentifier;
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import com.falsepattern.zigbrains.zon.psi.ZonStruct;
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import java.util.HashSet;
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import java.util.Set;
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public class ZonPsiImplUtil {
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public static Set<String> getKeys(ZonStruct struct) {
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var result = new HashSet<String>();
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for (var property: struct.getPropertyList()) {
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result.add(getText(property.getIdentifier()));
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}
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return result;
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}
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public static String getText(ZonIdentifier identifier) {
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var idStr = identifier.getText();
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if (idStr.startsWith("@")) {
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return idStr.substring(2, idStr.length() - 2);
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} else {
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return idStr;
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}
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}
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}
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@ -96,6 +96,9 @@
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<lang.braceMatcher language="Zon"
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implementationClass="com.falsepattern.zigbrains.zon.braces.ZonBraceMatcher"/>
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<completion.contributor language="Zon"
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implementationClass="com.falsepattern.zigbrains.zon.completion.ZonCompletionContributor"/>
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<!-- endregion Zon -->
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</extensions>
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