1 files changed, 57 insertions, 0 deletions
diff --git a/Userland/Libraries/LibDiff/Hunks.h b/Userland/Libraries/LibDiff/Hunks.h
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+++ b/Userland/Libraries/LibDiff/Hunks.h
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+/*
+ * Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/String.h>
+#include <AK/Vector.h>
+
+namespace Diff {
+
+struct HunkLocation {
+    size_t original_start_line { 0 };
+    size_t original_length { 0 };
+    size_t target_start_line { 0 };
+    size_t target_length { 0 };
+
+    enum class LocationType {
+        Original,
+        Target,
+        Both
+    };
+    void apply_offset(size_t offset, LocationType);
+};
+
+struct Hunk {
+    size_t original_start_line { 0 };
+    size_t target_start_line { 0 };
+    Vector<String> removed_lines;
+    Vector<String> added_lines;
+};
+
+Vector<Hunk> parse_hunks(const String& diff);
+HunkLocation parse_hunk_location(const String& location_line);
+};