76 lines
1.6 KiB
PHP
76 lines
1.6 KiB
PHP
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<?php
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namespace nur\b\io;
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use nur\b\coll\AbstractIterator;
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use nur\str;
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/**
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* Class StreamReader: lecture depuis un flux
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*/
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class StreamReader extends AbstractIterator implements IReader {
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use Treader, Tfilter;
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/** @var resource */
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protected $fd;
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/** @var bool */
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protected $close;
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function __construct($fd, ?bool $close=null) {
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if ($close === null) $close = $fd !== null;
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if ($fd === null) $fd = STDIN;
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$this->fd = $fd;
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$this->close = $close;
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}
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function setEncodingFilter(string $from, string $to="utf-8"): void {
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$this->_setEncodingFilter($from, $to);
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}
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/**
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* @throws IOException
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* @return resource
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*/
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protected final function open() {
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IOException::ensure_open($this->fd === null);
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$this->_streamAppendFilters($this->fd);
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return $this->fd;
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}
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/** @throws IOException */
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function getResource() {
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return $this->open();
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}
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/** @throws IOException */
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function seek(int $offset=0, int $whence=SEEK_SET): int {
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return fseek($this->open(), $offset, $whence);
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}
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function readLine(): string {
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$line = EOFException::ensure_not_eof(fgets($this->open()));
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return str::strip_nl($line);
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}
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protected function _next(&$key) {
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return $this->readLine();
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}
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function key() { return $this->_key(); }
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function current() { return $this->_current(); }
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function getContents(bool $close=true): string {
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try {
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return stream_get_contents($this->open());
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} finally {
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$this->close($close);
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}
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}
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function close(bool $close=true): void {
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if ($this->fd !== null && $this->close && $close) {
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fclose($this->fd);
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$this->fd = null;
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}
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}
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}
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