Context.php

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<?php

/*

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

class Context
{
        function Context()
        {
        }
        
        function from_language($lang, $output)
        {
                // Current indent level.
                $this->ind              = 0;
                $this->inquote          = 0;
                $this->incomment        = 0;
                $this->inbcomment       = 0;
                $this->inwhitespace     = 1;
                // Used to ensure quote matching works :-)
                $this->currquotechar    = "";
                $this->begseen          = 0;    
                $this->newline          = 0;
                $this->escaping         = 0;
                // In a line select?
                $this->lineselect       = 0;
                $this->closingstrings   = array();
        
                // Used by $this->munge for keyword checking - we only want to make this once.
                $this->validkeys = array();
        
                foreach(array_keys($lang->keywords) as $key)
                {
                        if ($lang->nocase) 
                                $this->validkeys[strtolower($key)] = $key;
                        else 
                                $this->validkeys[$key] = $key;
                }
                $this->alldelims = array_merge($lang->delimiters, $lang->stringchars);
        
                // Additional caching: First we want to store the strlens of the comments.
                $this->lcolengths = array();
                foreach($lang->linecommenton as $lco)
                {
                        $this->lcolengths[$lco] = strlen($lco);
                }
                foreach($lang->blockcommenton as $bco)
                {
                        $this->bcolengths[$bco] = strlen($bco);
                }
                foreach($lang->blockcommentoff as $bcf)
                {
                        $this->bcflengths[$bcf] = strlen($bcf);
                }
        
                // Build up match arrays for bcos.
                $this->bcomatches = array();
                $this->startingbkonchars = array();
                for($i=0; $i<sizeof($lang->blockcommenton); $i++)
                {
                        $bco = $lang->blockcommenton[$i];
                        if (!isset($this->bcomatches[$bco])) $this->bcomatches[$bco] = array();
                        array_push($this->bcomatches[$bco], $lang->blockcommentoff[$i]);
                        array_push($this->startingbkonchars, $bco[0]);
                
                }
                
                
                $preprolength = 0;
                $this->prepro = 0;
                if (isset($lang->prepro)) $this->preprolength = strlen($lang->prepro);
                
                // Output module handling
                        
                $this->code_parts = explode("_WORD_", $output->code);
                $this->linecomment_parts = explode("_WORD_", $output->linecomment);
                $this->blockcomment_parts = explode("_WORD_", $output->blockcomment);
                $this->prepro_parts = explode("_WORD_", $output->prepro);
                $this->select_parts = explode("_WORD_", $output->select);
                $this->quote_parts = explode("_WORD_", $output->quote);
                $currcat = 1;
                do
                {
                        $varname = "category_".$currcat;
                        if (isset($output->{$varname}))
                        {
                                $this->category_parts[$currcat] = explode("_WORD_", $output->{$varname});
                        } 
                        $currcat++;
                } while (isset($output->{$varname}));
        }
}
?>