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Bug #4085 Lexer should recognize identifier delimiters
Submitted: 2005-04-06 18:24 UTC
From: epte at ruffdogs dot com Assigned: cybot
Status: Closed Package: SQL_Parser
PHP Version: 4.3.8 OS:
Roadmaps: 0.5.1    
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 [2005-04-06 18:24 UTC] epte at ruffdogs dot com
Description: ------------ For example, in MySQL,`tablename` should be seen as an identifier. Reproduce code: --------------- MySQL sql: INSERT INTO `mpn_4nstats_datecnt` VALUES ('18042004',571); Actual result: -------------- Parse error: Expected table name on line 2 INSERT INTO `mpn_4nstats_datecnt` VALUES ('18042004',571); ^ found: "`"

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 [2005-04-06 19:41 UTC] epte at ruffdogs dot com
Here's the patch: Index: Dialect_MySQL.php =================================================================== --- Dialect_MySQL.php (revision 2689) +++ Dialect_MySQL.php (working copy) @@ -121,7 +121,8 @@ 'ascending'=>'asc', 'asc'=>'asc', 'descending'=>'desc', 'desc'=>'desc', 'date'=>'date', 'time'=>'time'), -'lexeropts'=>array('allowIdentFirstDigit'=>true), +'lexeropts'=>array('allowIdentFirstDigit'=>true, 'identBeginDelimeter'=>'`', + 'identEndDelimeter'=>'`'), 'parseropts'=>array() ); Index: Lexer.php =================================================================== --- Lexer.php (revision 2677) +++ Lexer.php (working copy) @@ -33,6 +33,8 @@ define('SQL_PARSER_STATE_START', 0); define('SQL_PARSER_STATE_KEYWORD_OR_IDENT_INCOMPLETE', 1); define('SQL_PARSER_STATE_KEYWORD_OR_IDENT_COMPLETE', 2); +define('SQL_PARSER_STATE_IDENT_INCOMPLETE', 3); +define('SQL_PARSER_STATE_IDENT_COMPLETE', 4); define('SQL_PARSER_STATE_REAL_OR_INT_INCOMPLETE', 5); define('SQL_PARSER_STATE_INT_COMPLETE', 6); define('SQL_PARSER_STATE_REAL_INCOMPLETE', 7); @@ -95,6 +97,12 @@ $this->stringLen = strlen($string); $this->lookahead = $lookahead; $this->allowIdentFirstDigit = $lexeropts['allowIdentFirstDigit']; + if (isset($lexeropts['identBeginDelimeter']) && + isset($lexeropts['identEndDelimeter'])) + { + $this->identBeginDelimeter = $lexeropts['identBeginDelimeter']; + $this->identEndDelimeter = $lexeropts['identEndDelimeter']; + } } function get() { @@ -181,7 +189,7 @@ array('token' => $token, 'tokText' => $this->tokText, 'skipText' => $this->skipText); - print_r($this->tokenStack[$this->stackPtr]); + //print_r($this->tokenStack[$this->stackPtr]); $this->stackPtr++; return $token; } @@ -270,6 +278,13 @@ break; } + if (isset($this->identBeginDelimeter) && + $c == $this->identBeginDelimeter) + { + $state = SQL_PARSER_STATE_IDENT_INCOMPLETE; + break; + } + if ($c == '_') { // system variable $state = SQL_PARSER_STATE_SYSVAR_INCOMPLETE; break; @@ -350,6 +365,26 @@ break; // }}} + // {{{ State 3 : Ident incomplete + case SQL_PARSER_STATE_IDENT_INCOMPLETE: + $c = $this->get(); + if ($c == $this->identEndDelimeter) { + $state = SQL_PARSER_STATE_IDENT_COMPLETE; + $this->tokText = substr($this->string, + ($this->tokStart+1), ($this->tokLen-2)); + break; + } + $state = SQL_PARSER_STATE_IDENT_INCOMPLETE; + break; + // }}} + + // {{{ State 4: Ident complete + case SQL_PARSER_STATE_IDENT_COMPLETE: + $this->setToken($this->tokText); + return 'ident'; + break; + // }}} + // {{{ State 5: Incomplete real or int number case SQL_PARSER_STATE_REAL_OR_INT_INCOMPLETE: $c = $this->get();
 [2007-07-13 13:50 UTC] cybot (Sebastian Mendel)
This bug has been fixed in CVS. If this was a documentation problem, the fix will appear on pear.php.net by the end of next Sunday (CET). If this was a problem with the pear.php.net website, the change should be live shortly. Otherwise, the fix will appear in the package's next release. Thank you for the report and for helping us make PEAR better.