Differential D25030 Diff 82 src/filesystem/linesofalarge/LinesOfALarge.php

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src/filesystem/linesofalarge/LinesOfALarge.php

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	*	*
	* If your stream is not large, it is generally more efficient (and certainly	* If your stream is not large, it is generally more efficient (and certainly
	* simpler) to read the entire stream first and then process it (e.g., with	* simpler) to read the entire stream first and then process it (e.g., with
	* `explode()`).	* `@explode()`).
	*	*
	* This class is abstract. The concrete implementations available are:	* This class is abstract. The concrete implementations available are:
	*	*
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	* @task config	* @task config
	*/	*/
	final public function setDelimiter($character) {	final public function setDelimiter($character) {
	if (($character !== null) && (strlen($character) !== 1)) {	if (($character !== null) && (@strlen($character) !== 1)) {
	throw new Exception(	throw new Exception(
	pht('Delimiter character must be one byte in length or null.'));	pht('Delimiter character must be one byte in length or null.'));
	}	}
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	// case the size of a line is very large compared to the chunk size we	// case the size of a line is very large compared to the chunk size we
	// read.	// read.
	while (true) {	while (true) {
	if (strlen($this->buf)) {	if (@strlen($this->buf)) {

	// If we don't have a delimiter, return the entire buffer.	// If we don't have a delimiter, return the entire buffer.
	if ($this->delimiter === null) {	if ($this->delimiter === null) {
	$this->num++;	$this->num++;
	$this->line = substr($this->buf, $this->pos);	$this->line = @substr($this->buf, $this->pos);
	$this->buf = '';	$this->buf = '';
	$this->pos = 0;	$this->pos = 0;
	return;	return;
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	// If we already have some data buffered, try to get the next line from	// If we already have some data buffered, try to get the next line from
	// the buffer. Search through the buffer for a delimiter. This should be	// the buffer. Search through the buffer for a delimiter. This should be
	// the common case.	// the common case.
	$endl = strpos($this->buf, $this->delimiter, $this->pos);	$endl = @strpos($this->buf, $this->delimiter, $this->pos);

	if ($endl !== false) {	if ($endl !== false) {
	// We found a delimiter, so return the line it delimits. We leave	// We found a delimiter, so return the line it delimits. We leave
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	// large relative to the size of a line. Instead, we move our cursor	// large relative to the size of a line. Instead, we move our cursor
	// within the buffer forward.	// within the buffer forward.
	$this->num++;	$this->num++;
	$this->line = substr($this->buf, $this->pos, ($endl - $this->pos));	$this->line = @substr($this->buf, $this->pos, ($endl - $this->pos));
	$this->pos = $endl + 1;	$this->pos = $endl + 1;
	return;	return;
	}	}
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	// We only have part of a line left in the buffer (no delimiter in the	// We only have part of a line left in the buffer (no delimiter in the
	// remaining piece), so throw away the part we've already emitted and	// remaining piece), so throw away the part we've already emitted and
	// continue below.	// continue below.
	$this->buf = substr($this->buf, $this->pos);	$this->buf = @substr($this->buf, $this->pos);
	$this->pos = 0;	$this->pos = 0;
	}	}

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	$more = $this->readMore();	$more = $this->readMore();
	}	}

	if (strlen($more)) {	if (@strlen($more)) {
	// We got some bytes, so add them to the buffer and then try again.	// We got some bytes, so add them to the buffer and then try again.
	$this->buf .= $more;	$this->buf .= $more;
	continue;	continue;
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	// delimiter, but that currently seems reasonable as a default	// delimiter, but that currently seems reasonable as a default
	// behavior. If we don't have a buffer, we're done.	// behavior. If we don't have a buffer, we're done.
	$this->eof = true;	$this->eof = true;
	if (strlen($this->buf)) {	if (@strlen($this->buf)) {
	$this->num++;	$this->num++;
	$this->line = $this->buf;	$this->line = $this->buf;
	$this->buf = null;	$this->buf = null;
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