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RegExp: highlight string matching portion in checker for JavaScript (IDEA-96093)

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GitOrigin-RevId: 0c03372f0936c6395e1f061ef8bafe1b9886e7cf
This commit is contained in:
Bas Leijdekkers
2020-10-19 20:36:10 +02:00
committed by intellij-monorepo-bot
parent 8a0ee6123c
commit 757d903793
1 changed files with 23 additions and 7 deletions
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30
RegExpSupport/src/org/intellij/lang/regexp/ecmascript/EcmaScriptRegExpMatcherProvider.java
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@@ -5,15 +5,18 @@ import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiLiteralValue;
import com.intellij.util.SmartList;
import org.intellij.lang.annotations.Language;
import org.intellij.lang.regexp.RegExpMatch;
import org.intellij.lang.regexp.RegExpMatchResult;
import org.intellij.lang.regexp.RegExpMatcherProvider;
import org.jetbrains.annotations.NonNls;
import org.intellij.lang.regexp.intention.CheckRegExpForm;
import org.jetbrains.annotations.NotNull;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.script.SimpleBindings;
import java.util.List;
/**
* @author Bas Leijdekkers
@@ -41,13 +44,26 @@ public class EcmaScriptRegExpMatcherProvider implements RegExpMatcherProvider {
}
final ScriptEngine engine = new ScriptEngineManager().getEngineByName("nashorn");
try {
@NonNls @Language("Nashorn JS")
@Language("Nashorn JS")
final String script =
"var a = \"" + StringUtil.escapeStringCharacters(sampleText) + "\".match(/" + StringUtil.escapeChar(regExp, '/') + "/" + modifiers + ");\n" +
"a !== null";
return (engine.eval(script) == Boolean.TRUE) ? RegExpMatchResult.MATCHES : RegExpMatchResult.NO_MATCH;
"var regexp = RegExp(\"" + StringUtil.escapeStringCharacters(regExp) + "\",'g" + modifiers + "');\n" +
"var str = '" + StringUtil.escapeStringCharacters(sampleText) + "';\n" +
"var match;\n" +
"\n" +
"var RegExpMatch = Java.type(\"org.intellij.lang.regexp.RegExpMatch\");\n" +
"while ((match = regexp.exec(str)) !== null) {\n" +
" var r = new RegExpMatch();\n" +
" r.add(match.index, regexp.lastIndex);\n" +
" result.add(r);\n" +
"}\n" +
"result";
final SimpleBindings bindings = new SimpleBindings();
bindings.put("result", new SmartList<>());
@SuppressWarnings("unchecked") final List<RegExpMatch> result = (List<RegExpMatch>)engine.eval(script, bindings);
CheckRegExpForm.setMatches(regExpFile, result);
return RegExpMatchResult.FOUND;
}
catch (ScriptException e) {
catch (Exception e) {
return RegExpMatchResult.BAD_REGEXP;
}
}