65 lines
1.7 KiB
PHP
65 lines
1.7 KiB
PHP
<?php
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namespace NoccyLabs\React\Protocol\Line;
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use Closure;
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use NoccyLabs\React\Protocol\ProtocolInterface;
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class LineProtocol implements ProtocolInterface
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{
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public function __construct(
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private readonly string $lineBreak = "\n",
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private readonly bool $quoteStrings = false,
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private readonly bool $escapeSpecial = false,
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private readonly ?Closure $beforePackCb = null,
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private readonly ?Closure $afterPackCb = null,
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private readonly ?Closure $beforeUnpackCb = null,
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private readonly ?Closure $afterUnpackCb = null,
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)
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{
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}
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public function packFrame(array $frame): string
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{
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if (is_callable($this->beforePackCb))
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$frame = call_user_func($this->beforePackCb, $frame);
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if ($this->escapeSpecial) {
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$frame = array_map(quotemeta(...), $frame);
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}
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if ($this->quoteStrings) {
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$frame = array_map(fn($v) => is_string($v) ? ('"'.str_replace('"',"\\\"",$v).'"') : $v, $frame);
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}
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$data = join(" ", $frame);
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$data .= $this->lineBreak;
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if (is_callable($this->afterPackCb))
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$data = call_user_func($this->afterPackCb, $data);
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return $data;
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}
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public function unpackFrame(string $data): array
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{
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return str_getcsv($data, ' ', '"', "\\");
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}
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public function consumeFrame(string &$data): ?array
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{
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// check for $this->lineBreak
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$p = strpos($data, $this->lineBreak);
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if ($p === false) {
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return null;
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}
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// break on separator
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$frame = substr($data, 0, $p);
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$data = substr($data, $p + strlen($this->lineBreak));
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return $this->unpackFrame($frame);
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}
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}
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