BlockString::leadingWhitespace() - Code Metrics - simPod/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

BlockString::leadingWhitespace() A
last analyzed 2020-03-20 22:01 UTC

↳ Parent: BlockString

Complexity

Conditions	4
Paths	2

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	4

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	4
dl	0
loc	8
ccs	5
cts	5
cp	1
rs	10
c	1
b	0
f	0
cc	4
nc	2
nop	1
crap	4

<?php

declare(strict_types=1);

namespace GraphQL\Utils;

use function array_pop;
use function array_shift;
use function count;
use function implode;
use function mb_strlen;
use function mb_substr;
use function preg_split;
use function trim;

class BlockString
{
    /**
     * Produces the value of a block string from its parsed raw value, similar to
     * Coffeescript's block string, Python's docstring trim or Ruby's strip_heredoc.
     *
     * This implements the GraphQL spec's BlockStringValue() static algorithm.
     */
    public static function value($rawString)
    {
        // Expand a block string's raw value into independent lines.
        $lines = preg_split("/\\r\\n|[\\n\\r]/", $rawString);

        // Remove common indentation from all lines but first.
        $commonIndent = null;
        $linesLength  = count($lines);
        $linesLength  = count(/** @scrutinizer ignore-type */ $lines);

        for ($i = 1; $i < $linesLength; $i++) {
            $line   = $lines[$i];
            $indent = self::leadingWhitespace($line);

            if ($indent >= mb_strlen($line) ||
                ($commonIndent !== null && $indent >= $commonIndent)
            ) {
                continue;
            }

            $commonIndent = $indent;
            if ($commonIndent === 0) {
                break;
            }
        }

        if ($commonIndent) {
0   == false // true
0   == null  // true
123 == false // false
123 == null  // false

// It is often better to use strict comparison
0 === false // false
0 === null  // false
            for ($i = 1; $i < $linesLength; $i++) {
                $line      = $lines[$i];
                $lines[$i] = mb_substr($line, $commonIndent);
            }
        }

        // Remove leading and trailing blank lines.
        while (count($lines) > 0 && trim($lines[0], " \t") === '') {
            array_shift($lines);
        }
        while (count($lines) > 0 && trim($lines[count($lines) - 1], " \t") === '') {
            array_pop($lines);
        }

        // Return a string of the lines joined with U+000A.
        return implode("\n", $lines);
    }

    private static function leadingWhitespace($str)
    {
        $i = 0;
        while ($i < mb_strlen($str) && ($str[$i] === ' ' || $str[$i] === '\t')) {
            $i++;
        }

        return $i;
    }
}


simPod / graphql-php

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BlockString::leadingWhitespace() A last analyzed 2020-03-20 22:01 UTC

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BlockString::leadingWhitespace() A
last analyzed 2020-03-20 22:01 UTC