FirstDiff::firstDifference() - Code Metrics - Inspection of "move Diff out into folder" - graze/console-diff-renderer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( e760e0...e9e3b8 )

by Harry

created 2017-06-07 14:28 UTC

FirstDiff::firstDifference() B

↳ Parent: FirstDiff

Complexity

Conditions	7
Paths	6

Size

Total Lines	20
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	20
rs	8.2222
c	0
b	0
f	0
cc	7
eloc	11
nc	6
nop	2

<?php

namespace Graze\BufferedConsole\Diff;

class FirstDiff
{
    /**
     * Loop through each line, and produce a difference report of what to write out to the terminal
     *
     * Assumes the beginning of old and new are the same line
     *
     * @param string[] $old
     * @param string[] $new
     *
     * @return array [[:col, :str]]
     */
    public function lines(array $old, array $new)
    {
        $out = [];
        for ($i=0; $i < count($old) || $i < count($new); $i++) {
            if ($i >= count($old)) {
                $out[] = ['col' => 0, 'str' => $new[$i]]; // write out the entire line for extra lines
            } elseif ($i >= count($new)) {
                $out[] = ['col' => 0, 'str' => '']; // clear the line if the new array has less entries than the old one
            } else {
                $col = $this->firstDifference($old[$i], $new[$i]);
                if ($col === -1) {
                    $out[] = null;
                } else {
                    $out[] = ['col' => $col, 'str' => mb_substr($new[$i], $col)];
                }
            }
        }
        return $out;
    }

    /**
     * Looks through a line to find the character to of the first difference between the 2 strings.
     *
     * If no difference is found, returns -1
     *
     * @param string $old
     * @param string $new
     *
     * @return int
     */
    public function firstDifference($old, $new)
    {
        // loop through old and new character by character and compare
        $oldLen = mb_strlen($old);
        $newLen = mb_strlen($new);

        if ($oldLen === 0) {
            return 0;
        }

        for ($i = 0; $i < $oldLen && $i < $newLen; $i++) {
            if (mb_substr($old, $i, 1) !== mb_substr($new, $i, 1)) {
                return $i;
            }
        }
        if ($i < $oldLen || $i < $newLen) {
            return $i;
        }
        return -1;
    }
}


1			<?php
2
3			namespace Graze\BufferedConsole\Diff;
4
5			class FirstDiff
6			{
7			/**
8			* Loop through each line, and produce a difference report of what to write out to the terminal
9			*
10			* Assumes the beginning of old and new are the same line
11			*
12			* @param string[] $old
13			* @param string[] $new
14			*
15			* @return array [[:col, :str]]
16			*/
17			public function lines(array $old, array $new)
18			{
19			$out = [];
20			for ($i=0; $i < count($old) \|\| $i < count($new); $i++) {
21			if ($i >= count($old)) {
22			$out[] = ['col' => 0, 'str' => $new[$i]]; // write out the entire line for extra lines
23			} elseif ($i >= count($new)) {
24			$out[] = ['col' => 0, 'str' => '']; // clear the line if the new array has less entries than the old one
25			} else {
26			$col = $this->firstDifference($old[$i], $new[$i]);
27			if ($col === -1) {
28			$out[] = null;
29			} else {
30			$out[] = ['col' => $col, 'str' => mb_substr($new[$i], $col)];
31			}
32			}
33			}
34			return $out;
35			}
36
37			/**
38			* Looks through a line to find the character to of the first difference between the 2 strings.
39			*
40			* If no difference is found, returns -1
41			*
42			* @param string $old
43			* @param string $new
44			*
45			* @return int
46			*/
47			public function firstDifference($old, $new)
48			{
49			// loop through old and new character by character and compare
50			$oldLen = mb_strlen($old);
51			$newLen = mb_strlen($new);
52
53			if ($oldLen === 0) {
54			return 0;
55			}
56
57			for ($i = 0; $i < $oldLen && $i < $newLen; $i++) {
58			if (mb_substr($old, $i, 1) !== mb_substr($new, $i, 1)) {
59			return $i;
60			}
61			}
62			if ($i < $oldLen \|\| $i < $newLen) {
63			return $i;
64			}
65			return -1;
66			}
67			}
68

graze / console-diff-renderer

Push — master ( e760e0...e9e3b8 )

FirstDiff::firstDifference() B

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