如何在PHP中区分文件撇号文本

Question

I want to diff 2 files and ignore checking lines that doesn't have apostrophe ("text") in PHP

For example: File 1:

START
    LTEXT "Tool Version:", IDC_STATIC, 70, 150, 80, 10, SS_RIGHT
        EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT

File 2:

/*
 *    Translated by Saibamen
 *
 /

START    
    LTEXT "Wersja narzędzia:", IDC_STATIC, 70, 150, 80, 10, SS_RIGHT
        EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT

I want to check if there's any difference between Tool Version: and Wersja narzędzia: strings.

Note: Files doesn't have this same schemas line by line - I want to start diff lines from line that have START in file.

Answer 1

You should first get content of each file and then use preg_match function with proper pattern to find version line and version string.

$fileContent1 = <<<TXT
dummy
dummy
LTEXT "Tool Version:", IDC_STATIC, 70, 150, 80, 10, SS_RIGHT EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT


dummy
TXT;

$fileContent2 = <<<TXT
dummy
LTEXT "Wersja narzędzia:", IDC_STATIC, 70, 150, 80, 10, SS_RIGHT EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT
dummy
dummy

TXT;

function diff_versions($leftContent, $rightContent) {
    $diff = true;
    $leftVersion = null;
    $rightVersion = null;

    $pattern = '/LTEXT "(Tool Version|Wersja narzędzia):", (.*)\R?/';

    if (preg_match($pattern, $leftContent, $matches) !== 1) {
        throw new Exception('Left content has no version line.');
    }

    $leftVersion = $matches[2];

    if (preg_match($pattern, $rightContent, $matches) !== 1) {
        throw new Exception('Right content has no version line.');
    }

    $rightVersion = $matches[2];

    return array(
        'diff' => $leftVersion === $rightVersion,
        'leftVersion' => $leftVersion,
        'rightVersion' => $rightVersion,
    );
}

var_dump(diff_versions($fileContent1, $fileContent2));

Output:

array (size=3)
   'diff' => boolean true
   'leftVersion' => string 'IDC_STATIC, 70, 150, 80, 10, SS_RIGHT EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT' (length=89)
   'rightVersion' => string 'IDC_STATIC, 70, 150, 80, 10, SS_RIGHT EDITTEXT IDC_STATIC_TIME, 155, 50, 210, 10, ES_LEFT' (length=89)

And then you should diff versions as you like.