Code tidy

Signed-off-by: Jack Cherng <[email protected]>

Author: jfcherng

src/Renderer/Html/LineRenderer/Word.php

@@ -16,40 +16,10 @@ final class Word extends AbstractLineRenderer
      */
     public function render(MbString $mbOld, MbString $mbNew): LineRendererInterface
     {
-        static $punctuationsRange = (
-            // Latin-1 Supplement
-            // @see https://unicode-table.com/en/blocks/latin-1-supplement/
-            "\u{0080}-\u{00BB}" .
-            // Spacing Modifier Letters
-            // @see https://unicode-table.com/en/blocks/spacing-modifier-letters/
-            "\u{02B0}-\u{02FF}" .
-            // Combining Diacritical Marks
-            // @see https://unicode-table.com/en/blocks/combining-diacritical-marks/
-            "\u{0300}-\u{036F}" .
-            // Small Form Variants
-            // @see https://unicode-table.com/en/blocks/small-form-variants/
-            "\u{FE50}-\u{FE6F}" .
-            // General Punctuation
-            // @see https://unicode-table.com/en/blocks/general-punctuation/
-            "\u{2000}-\u{206F}" .
-            // Supplemental Punctuation
-            // @see https://unicode-table.com/en/blocks/supplemental-punctuation/
-            "\u{2E00}-\u{2E7F}" .
-            // CJK Symbols and Punctuation
-            // @see https://unicode-table.com/en/blocks/cjk-symbols-and-punctuation/
-            "\u{3000}-\u{303F}" .
-            // Ideographic Symbols and Punctuation
-            // @see https://unicode-table.com/en/blocks/ideographic-symbols-and-punctuation/
-            "\u{16FE0}-\u{16FFF}" .
-            // hmm... seems to be no rule
-            " \t$,.:;!?'\"()\[\]{}%@<=>_+\-*\/~\\\\|" .
-            '　＄，．：；！？’＂（）［］｛｝％＠＜＝＞＿＋－＊／～＼｜' .
-            '「」『』〈〉《》【】()（）‘’“”' .
-            '．‧・･•·¿'
-        );
+        static $splitRegex = '/([' . RendererConstant::PUNCTUATIONS_RANGE . ']++)/uS';
 
-        $oldWords = $mbOld->toArraySplit("/([{$punctuationsRange}]++)/uS", -1, \PREG_SPLIT_DELIM_CAPTURE);
-        $newWords = $mbNew->toArraySplit("/([{$punctuationsRange}]++)/uS", -1, \PREG_SPLIT_DELIM_CAPTURE);
+        $oldWords = $mbOld->toArraySplit($splitRegex, -1, \PREG_SPLIT_DELIM_CAPTURE);
+        $newWords = $mbNew->toArraySplit($splitRegex, -1, \PREG_SPLIT_DELIM_CAPTURE);
 
         $opcodes = $this->getChangedExtentSegments($oldWords, $newWords);
 

src/Renderer/RendererConstant.php

@@ -31,4 +31,43 @@ final class RendererConstant
      * @var string
      */
     const IMPLODE_DELIMITER = "\u{ff2fa}\u{fcffc}\u{fff42}";
+
+    /**
+     * Regex range for punctuations.
+     *
+     * Assuming regex delimiter is "/".
+     *
+     * @var string
+     */
+    const PUNCTUATIONS_RANGE = (
+        // Latin-1 Supplement
+        // @see https://unicode-table.com/en/blocks/latin-1-supplement/
+        "\u{0080}-\u{00BB}" .
+        // Spacing Modifier Letters
+        // @see https://unicode-table.com/en/blocks/spacing-modifier-letters/
+        "\u{02B0}-\u{02FF}" .
+        // Combining Diacritical Marks
+        // @see https://unicode-table.com/en/blocks/combining-diacritical-marks/
+        "\u{0300}-\u{036F}" .
+        // Small Form Variants
+        // @see https://unicode-table.com/en/blocks/small-form-variants/
+        "\u{FE50}-\u{FE6F}" .
+        // General Punctuation
+        // @see https://unicode-table.com/en/blocks/general-punctuation/
+        "\u{2000}-\u{206F}" .
+        // Supplemental Punctuation
+        // @see https://unicode-table.com/en/blocks/supplemental-punctuation/
+        "\u{2E00}-\u{2E7F}" .
+        // CJK Symbols and Punctuation
+        // @see https://unicode-table.com/en/blocks/cjk-symbols-and-punctuation/
+        "\u{3000}-\u{303F}" .
+        // Ideographic Symbols and Punctuation
+        // @see https://unicode-table.com/en/blocks/ideographic-symbols-and-punctuation/
+        "\u{16FE0}-\u{16FFF}" .
+        // hmm... these seem to be no rule
+        " \t$,.:;!?'\"()\[\]{}%@<=>_+\-*\/~\\\\|" .
+        '　＄，．：；！？’＂（）［］｛｝％＠＜＝＞＿＋－＊／～＼｜' .
+        '「」『』〈〉《》【】()（）‘’“”' .
+        '．‧・･•·¿'
+    );
 }

src/Utility/ReverseIterator.php

@@ -6,8 +6,8 @@
 
 final class ReverseIterator
 {
-    const ITERATOR_GET_KEY = 1 << 1;
-    const ITERATOR_GET_BOTH = 1 << 2;
+    const ITERATOR_GET_KEY = 1 << 0;
+    const ITERATOR_GET_BOTH = 1 << 1;
 
     /**
      * The constructor.
@@ -20,14 +20,13 @@ private function __construct()
      * Iterate the array reversely.
      *
      * @param array $array the array
+     * @param int   $flags the flags
      *
      * @return \Generator
      */
     public static function fromArray(array $array, int $flags = 0): \Generator
     {
-        // it may worth unrolling if-conditions to be out of for-loop
-        // so it does have to check if-conditions in each iteration
-
+        // iterate [key => value] pair
         if ($flags & self::ITERATOR_GET_BOTH) {
             for (\end($array); ($key = \key($array)) !== null; \prev($array)) {
                 yield $key => \current($array);
@@ -36,6 +35,7 @@ public static function fromArray(array $array, int $flags = 0): \Generator
             return;
         }
 
+        // iterate only key
         if ($flags & self::ITERATOR_GET_KEY) {
             for (\end($array); ($key = \key($array)) !== null; \prev($array)) {
                 yield $key;
@@ -44,6 +44,7 @@ public static function fromArray(array $array, int $flags = 0): \Generator
             return;
         }
 
+        // iterate only value
         for (\end($array); \key($array) !== null; \prev($array)) {
             yield \current($array);
         }