Introduce Myers algorithm in linear space

src/commonMain/kotlin/io/github/petertrr/diffutils/text/CharDiffSplitter.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2024 Peter Trifanov.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.github.petertrr.diffutils.text
+
+internal class CharDiffSplitter : DiffSplitter {
+    override fun split(line: String): MutableList<String> {
+        val list = ArrayList<String>(line.length)
+
+        for (character in line.toCharArray()) {
+            list.add(character.toString())
+        }
+
+        return list
+    }
+}

src/commonMain/kotlin/io/github/petertrr/diffutils/text/DiffLineNormalizer.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2024 Peter Trifanov.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.github.petertrr.diffutils.text
+
+public fun interface DiffLineNormalizer {
+    public fun normalize(line: String): String
+}

src/commonMain/kotlin/io/github/petertrr/diffutils/text/DiffLineProcessor.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2024 Peter Trifanov.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.github.petertrr.diffutils.text
+
+public fun interface DiffLineProcessor {
+    public fun process(line: String): String
+}