13 changed files with 124 additions and 83 deletions
@ -1,58 +0,0 @@ |
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<?php |
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/** |
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* @license MIT |
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* Copyright 2017, Dustin Wilson, J. King et al. |
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* See LICENSE and AUTHORS files for details |
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*/ |
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declare(strict_types=1); |
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namespace MensBeam\HTML\DOM; |
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use MensBeam\Intl\Encoding\UTF8; |
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trait EscapeString { |
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protected function escapeString(string $string, bool $attribute = false): string { |
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# Escaping a string (for the purposes of the algorithm above) consists of |
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# running the following steps: |
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|
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# 1. Replace any occurrence of the "&" character by the string "&". |
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# 2. Replace any occurrences of the U+00A0 NO-BREAK SPACE character by the |
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# string " ". |
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$string = str_replace(['&', "\u{A0}"], ['&', ' '], $string); |
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# 3. If the algorithm was invoked in the attribute mode, replace any |
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# occurrences of the """ character by the string """. |
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# 4. If the algorithm was not invoked in the attribute mode, replace any |
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# occurrences of the "<" character by the string "<", and any |
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# occurrences of the ">" character by the string ">". |
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return ($attribute) ? str_replace('"', '"', $string) : str_replace(['<', '>'], ['<', '>'], $string); |
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} |
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protected function coerceName(string $name): string { |
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// This matches the inverse of the production of NameChar in XML 1.0, |
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// with the added exclusion of ":" from allowed characters |
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// See https://www.w3.org/TR/REC-xml/#NT-NameStartChar |
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preg_match_all('/[^\-\.0-9\x{B7}\x{300}-\x{36F}\x{203F}-\x{2040}A-Za-z_\x{C0}-\x{D6}\x{D8}-\x{F6}\x{F8}-\x{2FF}\x{370}-\x{37D}\x{37F}-\x{1FFF}\x{200C}-\x{200D}\x{2070}-\x{218F}\x{2C00}-\x{2FEF}\x{3001}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFFD}\x{10000}-\x{EFFFF}]/u', $name, $m); |
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foreach (array_unique($m[0], \SORT_STRING) as $c) { |
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$o = (new UTF8($c))->nextCode(); |
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$esc = "U".str_pad(strtoupper(dechex($o)), 6, "0", \STR_PAD_LEFT); |
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$name = str_replace($c, $esc, $name); |
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} |
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// Apply stricter rules to the first character |
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if (preg_match('/^[^A-Za-z_\x{C0}-\x{D6}\x{D8}-\x{F6}\x{F8}-\x{2FF}\x{370}-\x{37D}\x{37F}-\x{1FFF}\x{200C}-\x{200D}\x{2070}-\x{218F}\x{2C00}-\x{2FEF}\x{3001}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFFD}\x{10000}-\x{EFFFF}]/u', $name, $m)) { |
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$c = $m[0]; |
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$o = (new UTF8($c))->nextCode(); |
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$esc = "U".str_pad(strtoupper(dechex($o)), 6, "0", \STR_PAD_LEFT); |
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$name = $esc.substr($name, strlen($c)); |
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} |
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return $name; |
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} |
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protected function uncoerceName(string $name): string { |
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preg_match_all('/U[0-9A-F]{6}/', $name, $m); |
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foreach (array_unique($m[0], \SORT_STRING) as $o) { |
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$c = UTF8::encode(hexdec(substr($o, 1))); |
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$name = str_replace($o, $c, $name); |
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} |
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return $name; |
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} |
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} |
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