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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Wt2Html; |
| 5 | |
| 6 | use InvalidArgumentException; |
| 7 | use Wikimedia\WikiPEG\Tracer as ITracer; |
| 8 | |
| 9 | /** |
| 10 | * FIXME: DefaultTracer should make some things protected |
| 11 | */ |
| 12 | class Tracer implements ITracer { |
| 13 | /** @var int */ |
| 14 | private $indentLevel = 0; |
| 15 | private string $text; |
| 16 | |
| 17 | public function __construct( string $text ) { |
| 18 | $this->text = $text; |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * @param array $event |
| 23 | */ |
| 24 | public function trace( $event ): void { |
| 25 | switch ( $event['type'] ) { |
| 26 | case 'rule.enter': |
| 27 | $this->log( $event ); |
| 28 | $this->indentLevel++; |
| 29 | break; |
| 30 | |
| 31 | case 'rule.match': |
| 32 | $this->indentLevel--; |
| 33 | $this->log( $event ); |
| 34 | break; |
| 35 | |
| 36 | case 'rule.fail': |
| 37 | $this->indentLevel--; |
| 38 | $this->log( $event ); |
| 39 | break; |
| 40 | |
| 41 | default: |
| 42 | throw new InvalidArgumentException( "Invalid event type {$event['type']}" ); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * @param array $event |
| 48 | */ |
| 49 | private function log( $event ) { |
| 50 | $offset = $event['location']->start->offset; |
| 51 | print str_pad( |
| 52 | '' . $event['location'], |
| 53 | 20 |
| 54 | ) |
| 55 | . str_pad( 'c:' . json_encode( $this->text[$offset] ?? '' ), 10 ) |
| 56 | . str_pad( $event['type'], 10 ) . ' ' |
| 57 | . str_repeat( ' ', $this->indentLevel ) . $event['rule'] |
| 58 | . $this->formatArgs( $event['args'] ?? null ) |
| 59 | . "\n"; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * @param ?array $argMap |
| 64 | * @return string |
| 65 | */ |
| 66 | private function formatArgs( $argMap ) { |
| 67 | if ( !$argMap ) { |
| 68 | return ''; |
| 69 | } |
| 70 | |
| 71 | $argParts = []; |
| 72 | foreach ( $argMap as $argName => $argValue ) { |
| 73 | if ( $argName === '$silence' ) { |
| 74 | continue; |
| 75 | } |
| 76 | if ( $argName === '$boolParams' ) { |
| 77 | $argParts[] = '0x' . base_convert( (string)$argValue, 10, 16 ); |
| 78 | } else { |
| 79 | $displayName = str_replace( '$param_', '', $argName ); |
| 80 | if ( $displayName[0] === '&' ) { |
| 81 | $displayName = substr( $displayName, 1 ); |
| 82 | $ref = '&'; |
| 83 | } else { |
| 84 | $ref = ''; |
| 85 | } |
| 86 | $argParts[] = "$displayName=$ref" . |
| 87 | json_encode( $argValue, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE ); |
| 88 | } |
| 89 | } |
| 90 | if ( $argParts ) { |
| 91 | return '<' . implode( ', ', $argParts ) . '>'; |
| 92 | } else { |
| 93 | return ''; |
| 94 | } |
| 95 | } |
| 96 | } |