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<?php |
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namespace Htsl\ReadingBuffer; |
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use Htsl\Helper\TGetter; |
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//////////////////////////////////////////////////////////////// |
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/** |
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* @property-read string $content Line content without indentation. |
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* @property-read string $fullContent Full content of this line. |
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* @property-read int $indentLevel Indent level of this line. |
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* @property-read \Htsl\ReadingBuffer\Line $subIndentLine Subindent line. |
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*/ |
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class Line |
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{ |
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use TGetter; |
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/** |
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* Line content. |
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* |
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* @access private |
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* |
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* @var string |
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*/ |
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private $content; |
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/** |
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* Whether this line is last line. |
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* |
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* @access private |
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* |
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* @var bool |
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*/ |
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private $isLast=false; |
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/** |
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* Constructor. |
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* |
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* @access public |
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* |
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* @param string | bool $content String content for normal line and false for last line. |
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*/ |
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public function __construct( /*string|bool*/$content ) |
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{ |
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false===$content and $this->isLast=true; |
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$this->content= rtrim($content,"\n"); |
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} |
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/** |
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* Getting content without indentation. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function getContent():string |
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{ |
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return ltrim($this->content,"\t"); |
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} |
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/** |
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* Getting full content. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function getFullContent():string |
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{ |
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return $this->content; |
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} |
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/** |
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* Getting a section of content, like call substr(). |
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* |
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* @access public |
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* |
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* @param int $start |
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* @param int ...$lengths |
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* |
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* @return string |
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*/ |
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public function slice( int$start=0, int...$lengths ):string |
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{ |
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return substr($this->getContent(),$start,...array_slice($lengths,0,1)); |
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} |
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/** |
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* Getting single character from content. |
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* |
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* @access public |
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* |
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* @param int $offset |
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* |
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* @return string |
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*/ |
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public function getChar( int$offset ):string |
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{ |
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return substr($this->getcontent(),$offset,1); |
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} |
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/** |
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* Matching a preg pattern and return whether matches. |
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* |
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* @access public |
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* |
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* @param string $pattern |
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* |
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* @return bool |
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*/ |
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public function pregMatch( string$pattern ):bool |
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{ |
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return !!preg_match($pattern,ltrim($this->content,"\t")); |
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} |
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/** |
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* Matching a preg pattern and return the all or one of groups of matchment. |
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* |
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* @access public |
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* |
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* @param string $pattern |
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* @param int | string $match Group index or name |
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* |
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* @return string |
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*/ |
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public function pregGet( string$pattern, /*int|string*/$match=0 ):string |
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{ |
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preg_match($pattern,ltrim($this->content,"\t"),$matches); |
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return $matches[$match]??''; |
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} |
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/** |
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* Multiple matching a preg pattern and map result with a callback. |
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* |
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* @access public |
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* |
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* @param string $pattern |
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* @param callable $callback |
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* |
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* @return array |
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*/ |
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public function pregMap( string$pattern, callable$callback ):array |
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{ |
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preg_match_all($pattern,ltrim($this->content,"\t"),$matches); |
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return array_map($callback,...$matches); |
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} |
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/** |
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* Getting the indent level of this line, the number of starting tab characters. |
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* |
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* @access public |
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* |
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* @return int |
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*/ |
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public function getIndentLevel():int |
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{ |
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return strlen($this->content)-strlen(ltrim($this->content,"\t")); |
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} |
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/** |
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* Converting this object to string, returning content without indentation. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function __toString():string |
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{ |
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return $this->getContent(); |
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} |
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/** |
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* Wether this line is empty. |
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* |
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* @access public |
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* |
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* @return bool |
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*/ |
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public function isEmpty():bool |
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{ |
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return !strlen($this->content); |
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} |
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/** |
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* Whether this line is last line. |
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* |
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* @access public |
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* |
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* @return bool |
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*/ |
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public function isLast():bool |
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{ |
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return $this->isLast; |
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} |
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/** |
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* Whether this line is last line. |
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* |
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* @access public |
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* |
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* @return bool |
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*/ |
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public function noMore():bool |
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{ |
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return $this->isLast; |
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} |
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/** |
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* Whether next line exists. |
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* |
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* @access public |
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* |
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* @return bool |
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*/ |
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public function hasMore():bool |
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{ |
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return !$this->isLast; |
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} |
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/** |
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* Getting line with sub level indent( tab space tab ). |
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* |
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* @access public |
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* |
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* @return \Htsl\ReadingBuffer\Line |
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*/ |
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public function getSubIndentLine():self |
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{ |
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return new static(ltrim($this->getContent(),' ')); |
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} |
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} |
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This check looks for improperly formatted assignments.
Every assignment must have exactly one space before and one space after the equals operator.
To illustrate:
will have no issues, while
will report issues in lines 1 and 2.