Initial commit

vendor/laravel/prompts/src/Concerns/Truncation.php

@@ -0,0 +1,106 @@
+<?php
+
+namespace Laravel\Prompts\Concerns;
+
+use InvalidArgumentException;
+
+trait Truncation
+{
+    /**
+     * Truncate a value with an ellipsis if it exceeds the given width.
+     */
+    protected function truncate(string $string, int $width): string
+    {
+        if ($width <= 0) {
+            throw new InvalidArgumentException("Width [{$width}] must be greater than zero.");
+        }
+
+        return mb_strwidth($string) <= $width ? $string : (mb_strimwidth($string, 0, $width - 1).'…');
+    }
+
+    /**
+     * Multi-byte version of wordwrap.
+     *
+     * @param  non-empty-string  $break
+     */
+    protected function mbWordwrap(
+        string $string,
+        int $width = 75,
+        string $break = "\n",
+        bool $cut_long_words = false
+    ): string {
+        $lines = explode($break, $string);
+        $result = [];
+
+        foreach ($lines as $originalLine) {
+            if (mb_strwidth($originalLine) <= $width) {
+                $result[] = $originalLine;
+
+                continue;
+            }
+
+            $words = explode(' ', $originalLine);
+            $line = null;
+            $lineWidth = 0;
+
+            if ($cut_long_words) {
+                foreach ($words as $index => $word) {
+                    $characters = mb_str_split($word);
+                    $strings = [];
+                    $str = '';
+
+                    foreach ($characters as $character) {
+                        $tmp = $str.$character;
+
+                        if (mb_strwidth($tmp) > $width) {
+                            $strings[] = $str;
+                            $str = $character;
+                        } else {
+                            $str = $tmp;
+                        }
+                    }
+
+                    if ($str !== '') {
+                        $strings[] = $str;
+                    }
+
+                    $words[$index] = implode(' ', $strings);
+                }
+
+                $words = explode(' ', implode(' ', $words));
+            }
+
+            foreach ($words as $word) {
+                $tmp = ($line === null) ? $word : $line.' '.$word;
+
+                // Look for zero-width joiner characters (combined emojis)
+                preg_match('/\p{Cf}/u', $word, $joinerMatches);
+
+                $wordWidth = count($joinerMatches) > 0 ? 2 : mb_strwidth($word);
+
+                $lineWidth += $wordWidth;
+
+                if ($line !== null) {
+                    // Space between words
+                    $lineWidth += 1;
+                }
+
+                if ($lineWidth <= $width) {
+                    $line = $tmp;
+                } else {
+                    $result[] = $line;
+                    $line = $word;
+                    $lineWidth = $wordWidth;
+                }
+            }
+
+            if ($line !== '') {
+                $result[] = $line;
+            }
+
+            $line = null;
+        }
+
+        return implode($break, $result);
+    }
+}