public function testLineNumber2VerseNumber()
{
$usfm = <<<EOD
\\id MIC
EOD;
$this->assertEquals(0, Filter_Usfm::lineNumber2VerseNumber($usfm, 0));
$usfm = <<<EOD
\\id MIC
\\v 1 Verse
EOD;
$this->assertEquals(1, Filter_Usfm::lineNumber2VerseNumber($usfm, 1));
$usfm = <<<EOD
\\v 1 Verse
EOD;
$this->assertEquals(1, Filter_Usfm::lineNumber2VerseNumber($usfm, 0));
$usfm = <<<EOD
\\p
\\v 3 Verse 3 (out of order).
\\v 1 Verse 1.
\\v 2 Verse 1.
EOD;
$this->assertEquals(0, Filter_Usfm::lineNumber2VerseNumber($usfm, 0));
$this->assertEquals(3, Filter_Usfm::lineNumber2VerseNumber($usfm, 1));
$this->assertEquals(1, Filter_Usfm::lineNumber2VerseNumber($usfm, 2));
$this->assertEquals(2, Filter_Usfm::lineNumber2VerseNumber($usfm, 3));
}
public static function offset2verseNumber($usfm, $offset)
{
$totalOffset = 0;
$lines = explode("\n", $usfm);
foreach ($lines as $lineNumber => $line) {
$totalOffset += mb_strlen($line);
if ($totalOffset >= $offset) {
return Filter_Usfm::lineNumber2VerseNumber($usfm, $lineNumber);
}
// Add 1 for new line.
$totalOffset += 1;
}
return 0;
}
