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feat: parse and display indentation rules
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45 changes: 45 additions & 0 deletions
45
...n/src/main/java/org/eclipse/tm4e/languageconfiguration/internal/model/IndentForEnter.java
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|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /** | ||
| * Copyright (c) 2024 Vegard IT GmbH and others. | ||
| * | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Initial code from https://github.com/microsoft/vscode/ | ||
| * Initial copyright Copyright (C) Microsoft Corporation. All rights reserved. | ||
| * Initial license: MIT | ||
| * | ||
| * Contributors: | ||
| * - Microsoft Corporation: Initial code, written in TypeScript, licensed under MIT license | ||
| * - Sebastian Thomschke - translation and adaptation to Java | ||
| */ | ||
| package org.eclipse.tm4e.languageconfiguration.internal.model; | ||
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| import org.eclipse.tm4e.core.internal.utils.StringUtils; | ||
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| /** | ||
| * Describes indentation rules for a language. | ||
| * | ||
| * @see <a href= | ||
| * "https://github.com/microsoft/vscode/blob/8e2ec5a7ee1ae5500c645c05145359f2a814611c/src/vs/editor/common/languages/autoIndent.ts#L278"> | ||
| * github.com/microsoft/vscode/blob/main/src/vs/editor/common/languages/autoIndent.ts#L278</a> | ||
| */ | ||
| public class IndentForEnter { | ||
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| public final String beforeEnter; | ||
| public final String afterEnter; | ||
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| public IndentForEnter(final String beforeEnter, final String afterEnter) { | ||
| this.beforeEnter = beforeEnter; | ||
| this.afterEnter = afterEnter; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return StringUtils.toString(this, sb -> sb | ||
| .append("beforeEnter=").append(beforeEnter).append(", ") | ||
| .append("afterEnter=").append(afterEnter)); | ||
| } | ||
| } |
58 changes: 58 additions & 0 deletions
58
...src/main/java/org/eclipse/tm4e/languageconfiguration/internal/model/IndentationRules.java
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| @@ -0,0 +1,58 @@ | ||
| /** | ||
| * Copyright (c) 2024 Vegard IT GmbH and others. | ||
| * | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Initial code from https://github.com/microsoft/vscode/ | ||
| * Initial copyright Copyright (C) Microsoft Corporation. All rights reserved. | ||
| * Initial license: MIT | ||
| * | ||
| * Contributors: | ||
| * - Microsoft Corporation: Initial code, written in TypeScript, licensed under MIT license | ||
| * - Sebastian Thomschke - translation and adaptation to Java | ||
| */ | ||
| package org.eclipse.tm4e.languageconfiguration.internal.model; | ||
|
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| import org.eclipse.jdt.annotation.Nullable; | ||
|
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| /** | ||
| * Describes indentation rules for a language. | ||
| * | ||
| * @see <a href= | ||
| * "https://github.com/microsoft/vscode/blob/8e2ec5a7ee1ae5500c645c05145359f2a814611c/src/vs/editor/common/languages/languageConfiguration.ts#L105"> | ||
| * github.com/microsoft/vscode/blob/main/src/vs/editor/common/languages/languageConfiguration.ts#L105</a> | ||
| */ | ||
| public class IndentationRules { | ||
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| /** | ||
| * If a line matches this pattern, then all the lines after it should be unindented once (until another rule matches). | ||
| */ | ||
| public final RegExPattern decreaseIndentPattern; | ||
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| /** | ||
| * If a line matches this pattern, then all the lines after it should be indented once (until another rule matches). | ||
| */ | ||
| public final RegExPattern increaseIndentPattern; | ||
|
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| /** | ||
| * If a line matches this pattern, then **only the next line** after it should be indented once. | ||
| */ | ||
| public final @Nullable RegExPattern indentNextLinePattern; | ||
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| /** | ||
| * If a line matches this pattern, then its indentation should not be changed and it should not be evaluated against the other rules. | ||
| */ | ||
| public final @Nullable RegExPattern unIndentedLinePattern; | ||
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| public IndentationRules(final RegExPattern decreaseIndentPattern, final RegExPattern increaseIndentPattern, | ||
| final @Nullable RegExPattern indentNextLinePattern, final @Nullable RegExPattern unIndentedLinePattern) { | ||
| this.decreaseIndentPattern = decreaseIndentPattern; | ||
| this.increaseIndentPattern = increaseIndentPattern; | ||
| this.indentNextLinePattern = indentNextLinePattern; | ||
| this.unIndentedLinePattern = unIndentedLinePattern; | ||
| } | ||
| } |
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79 changes: 79 additions & 0 deletions
79
...ain/java/org/eclipse/tm4e/languageconfiguration/internal/supports/IndentRulesSupport.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /** | ||
| * Copyright (c) 2024 Vegard IT GmbH and others. | ||
| * | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Initial code from https://github.com/microsoft/vscode/ | ||
| * Initial copyright Copyright (C) Microsoft Corporation. All rights reserved. | ||
| * Initial license: MIT | ||
| * | ||
| * Contributors: | ||
| * - Microsoft Corporation: Initial code, written in TypeScript, licensed under MIT license | ||
| * - Sebastian Thomschke - translation and adaptation to Java | ||
| */ | ||
| package org.eclipse.tm4e.languageconfiguration.internal.supports; | ||
|
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| import org.eclipse.tm4e.languageconfiguration.internal.model.IndentationRules; | ||
|
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| /** | ||
| * @see <a href= | ||
| * "https://github.com/microsoft/vscode/blob/main/src/vs/editor/common/languages/supports/indentRules.ts"> | ||
| * github.com/microsoft/vscode/blob/main/src/vs/editor/common/languages/supports/indentRules.ts</a> | ||
| */ | ||
| public class IndentRulesSupport { | ||
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| public static final class IndentConsts { | ||
| public static final int INCREASE_MASK = 0b00000001; | ||
| public static final int DECREASE_MASK = 0b00000010; | ||
| public static final int INDENT_NEXTLINE_MASK = 0b00000100; | ||
| public static final int UNINDENT_MASK = 0b00001000; | ||
| } | ||
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| private final IndentationRules _indentationRules; | ||
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| public IndentRulesSupport(IndentationRules indentationRules) { | ||
| this._indentationRules = indentationRules; | ||
| } | ||
|
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| public boolean shouldIncrease(final String text) { | ||
| return _indentationRules.increaseIndentPattern.matchesFully(text); | ||
|
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| // if (this._indentationRules.indentNextLinePattern && this._indentationRules.indentNextLinePattern.test(text)) { | ||
| // return true; | ||
| // } | ||
| } | ||
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| public boolean shouldDecrease(final String text) { | ||
| return _indentationRules.decreaseIndentPattern.matchesFully(text); | ||
| } | ||
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| public boolean shouldIndentNextLine(final String text) { | ||
| return this._indentationRules.indentNextLinePattern != null && this._indentationRules.indentNextLinePattern.matchesFully(text); | ||
| } | ||
|
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| public boolean shouldIgnore(final String text) { | ||
| // the text matches `unIndentedLinePattern` | ||
| return this._indentationRules.unIndentedLinePattern != null && this._indentationRules.unIndentedLinePattern.matchesFully(text); | ||
| } | ||
|
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| public int getIndentMetadata(final String text) { | ||
| int ret = 0; | ||
| if (this.shouldIncrease(text)) { | ||
| ret += IndentConsts.INCREASE_MASK; | ||
| } | ||
| if (this.shouldDecrease(text)) { | ||
| ret += IndentConsts.DECREASE_MASK; | ||
| } | ||
| if (this.shouldIndentNextLine(text)) { | ||
| ret += IndentConsts.INDENT_NEXTLINE_MASK; | ||
| } | ||
| if (this.shouldIgnore(text)) { | ||
| ret += IndentConsts.UNINDENT_MASK; | ||
| } | ||
| return ret; | ||
| } | ||
| } |
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