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Extract json insignificant bytes map to separate method for readability.

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This commit is contained in:
Filip Halaxa 2022-01-09 15:09:50 +01:00
parent 4157d6d990
commit f5492d7223
1 changed files with 15 additions and 8 deletions
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23
src/Lexer.php
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@ -23,14 +23,9 @@ class Lexer implements \IteratorAggregate, PositionAware
#[\ReturnTypeWillChange] #[\ReturnTypeWillChange]
public function getIterator() public function getIterator()
{ {
// init the map of JSON-structure (in)significant bytes as local variable variables for the fastest lookup // init the map as local variable variables for the fastest lookup
foreach (range(0, 255) as $ord) { foreach ($this->jsonInsignificantBytes() as $jsonInsignificantByte) {
if (! in_array( ${$jsonInsignificantByte} = true;
chr($ord),
["\\", '"', "\xEF", "\xBB", "\xBF", ' ', "\n", "\r", "\t", '{', '}', '[', ']', ':', ',']
)) {
${chr($ord)} = true;
}
} }
$tokenBoundaries = $this->tokenBoundaries(); $tokenBoundaries = $this->tokenBoundaries();
@ -131,4 +126,16 @@ class Lexer implements \IteratorAggregate, PositionAware
{ {
return 0; return 0;
} }
private function jsonInsignificantBytes()
{
$jsonSignificantBytes = ["\\", '"', "\xEF", "\xBB", "\xBF", ' ', "\n", "\r", "\t", '{', '}', '[', ']', ':', ','];
foreach (range(0, 255) as $ord) {
$asciiChar = chr($ord);
if (! in_array($asciiChar, $jsonSignificantBytes)) {
yield chr($ord);
}
}
}
} }