Differential D20977 Diff 49988 src/infrastructure/diff/PhabricatorDifferenceEngine.php

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src/infrastructure/diff/PhabricatorDifferenceEngine.php

Show First 20 Lines • Show All 163 Lines • ▼ Show 20 Lines	private function normalizeFile($corpus) {
// even when they're semantic (e.g., in a string constant). This covers		// even when they're semantic (e.g., in a string constant). This covers
// indentation changes, trailing whitepspace, and formatting changes		// indentation changes, trailing whitepspace, and formatting changes
// like "+/-".		// like "+/-".
$corpus = preg_replace('/[ \t]/', '', $corpus);		$corpus = preg_replace('/[ \t]/', '', $corpus);

return $corpus;		return $corpus;
}		}

		public static function applyIntralineDiff($str, $intra_stack) {
		$buf = '';
		$p = $s = $e = 0; // position, start, end
		$highlight = $tag = $ent = false;
		$highlight_o = '<span class="bright">';
		$highlight_c = '</span>';

		$depth_in = '<span class="depth-in">';
		$depth_out = '<span class="depth-out">';

		$is_html = false;
		if ($str instanceof PhutilSafeHTML) {
		$is_html = true;
		$str = $str->getHTMLContent();
		}

		$n = strlen($str);
		for ($i = 0; $i < $n; $i++) {

		if ($p == $e) {
		do {
		if (empty($intra_stack)) {
		$buf .= substr($str, $i);
		break 2;
		}
		$stack = array_shift($intra_stack);
		$s = $e;
		$e += $stack[1];
		} while ($stack[0] === 0);

		switch ($stack[0]) {
		case '>':
		$open_tag = $depth_in;
		break;
		case '<':
		$open_tag = $depth_out;
		break;
		default:
		$open_tag = $highlight_o;
		break;
		}
		}

		if (!$highlight && !$tag && !$ent && $p == $s) {
		$buf .= $open_tag;
		$highlight = true;
		}

		if ($str[$i] == '<') {
		$tag = true;
		if ($highlight) {
		$buf .= $highlight_c;
		}
		}

		if (!$tag) {
		if ($str[$i] == '&') {
		$ent = true;
		}
		if ($ent && $str[$i] == ';') {
		$ent = false;
		}
		if (!$ent) {
		$p++;
		}
		}

		$buf .= $str[$i];

		if ($tag && $str[$i] == '>') {
		$tag = false;
		if ($highlight) {
		$buf .= $open_tag;
		}
		}

		if ($highlight && ($p == $e \|\| $i == $n - 1)) {
		$buf .= $highlight_c;
		$highlight = false;
		}
		}

		if ($is_html) {
		return phutil_safe_html($buf);
		}

		return $buf;
		}

}		}