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tx_indexedsearch_lexer Class Reference

List of all members.

Public Member Functions

 tx_indexedsearch_lexer ()
 split2Words ($wordString)
 addWords (&$words, &$wordString, $start, $len)
 get_word (&$str, $pos=0)
 utf8_is_letter (&$str, &$len, $pos=0)
 charType ($cp)
 utf8_ord (&$str, &$len, $pos=0, $hex=false)

Public Attributes

 $debug = FALSE
 $debugString = ''
 $csObj
 $lexerConf

Detailed Description

Definition at line 73 of file class.lexer.php.

Constructor & Destructor Documentation

tx_indexedsearch_lexer::tx_indexedsearch_lexer (   ) 
 

Constructor: Initializes the charset class, t3lib_cs

Returns:
void

Definition at line 105 of file class.lexer.php.

References t3lib_div::makeInstance().

Member Function Documentation

tx_indexedsearch_lexer::addWords (  &$  words,
&$  wordString,
$  start,
$  len
) 
 

Add word to word-array This function should be used to make sure CJK sequences are split up in the right way

Parameters:
array Array of accumulated words
string Complete Input string from where to extract word
integer Start position of word in input string
integer The Length of the word string from start position
Returns:
void

Definition at line 178 of file class.lexer.php.

References charType(), and utf8_ord().

Referenced by split2Words().

tx_indexedsearch_lexer::charType (  $  cp  ) 
 

Determine the type of character

Parameters:
integer Unicode number to evaluate
Returns:
array Type of char; index-0: the main type: num, alpha or CJK (Chinese / Japanese / Korean)

Definition at line 329 of file class.lexer.php.

Referenced by addWords().

tx_indexedsearch_lexer::get_word (  &$  str,
$  pos = 0
) 
 

Get the first word in a given utf-8 string (initial non-letters will be skipped)

Parameters:
string Input string (reference)
integer Starting position in input string
Returns:
array 0: start, 1: len or false if no word has been found

Definition at line 239 of file class.lexer.php.

Referenced by split2Words().

tx_indexedsearch_lexer::split2Words (  $  wordString  ) 
 

Splitting string into words. Used for indexing, can also be used to find words in query.

Parameters:
string String with UTF-8 content to process.
Returns:
array Array of words in utf-8

Definition at line 116 of file class.lexer.php.

References addWords(), and get_word().

tx_indexedsearch_lexer::utf8_is_letter (  &$  str,
&$  len,
$  pos = 0
) 
 

See if a character is a letter (or a string of letters or non-letters).

Parameters:
string Input string (reference)
integer Byte-length of character sequence (reference, return value)
integer Starting position in input string
Returns:
boolean letter (or word) found

Definition at line 264 of file class.lexer.php.

References t3lib_div::inList().

tx_indexedsearch_lexer::utf8_ord (  &$  str,
&$  len,
$  pos = 0,
$  hex = false
) 
 

Converts a UTF-8 multibyte character to a UNICODE codepoint

Parameters:
string UTF-8 multibyte character string (reference)
integer The length of the character (reference, return value)
integer Starting position in input string
boolean If set, then a hex. number is returned
Returns:
integer UNICODE codepoint

Definition at line 383 of file class.lexer.php.

Referenced by addWords().

Member Data Documentation

tx_indexedsearch_lexer::$lexerConf
 

Initial value:

 array(
                'printjoins' => array(  // This is the Unicode numbers of chars that are allowed INSIDE a sequence of letter chars (alphanum + CJK)
                        0x2e,   // "."
                        0x2d,   // "-"
                        0x5f,   // "_"
                        0x3a,   // ":"
                        0x2f,   // "/"
                        0x27,   // "'"
                        // 0x615,       // ARABIC SMALL HIGH TAH
                ),
                'casesensitive' => FALSE,       // Set, if case sensitive indexing is wanted.
                'removeChars' => array(         // List of unicode numbers of chars that will be removed before words are returned (eg. "-")
                        0x2d    // "-"
                )
        )

Definition at line 83 of file class.lexer.php.

The documentation for this class was generated from the following file:

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