<?php
# anagram
# coded by Alessandro Rosa
# e-mail : [email protected]
# site : http://malilla.supereva.it
# Copyright (C) 2006 Alessandro Rosa
# 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 3 of the License, or
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Compiled with PHP 4.4.0
class anagram
{
function anagram()
{
$this->reset() ;
}
function reset()
{
$this->counter = 0 ;
$this->bSaveFile = false ;
$this->bInitialLetters = false ;
$this->bTerminalLetters = false ;
$this->$bOne_bond = false ;
$this->max_bonds = 0;
unset( $this->bonds ) ;
}
function set_save_file( $bSF ) { $this->bSaveFile = $bSF ; }
function set_save_file_name( $name ) { $this->save_file_name = $name ; }
function add_bond( $letter_position )
{
$cnt = count( $this->bonds );
$this->bonds[$cnt] = $letter_position - 1 ;
$this->max_bonds = count( $this->bonds );
$this->bOne_bond = true ;
}
function insert_initials( $l )
{
$this->initial_letters = $l ;
$this->initial_letters_len = strlen( $this->initial_letters );
$this->bInitialLetters = true ;
}
function insert_terminals( $l )
{
$this->terminal_letters = $l ;
$this->terminal_letters_len = strlen( $this->terminal_letters );
$this->bTerminalLetters = true ;
}
function insert_word( $in )
{
$this->original_word = $in ;
// creation of flags string
$this->original_word_length = strlen( $in ) ;
$this->flags_string = "";
for ( $i = 0 ; $i < $this->original_word_length ; $i++ )
$this->flags_string .= "N" ;
}
function go()
{
if ( !isset( $this->original_word ) )
{
echo "<br/>No anagram can be performed.<br/>The input word was not initialized !<br/>" ;
return ;
}
else if ( strlen( $this->original_word ) == 0 )
{
echo "<br/>No anagram can be performed.<br/>The input word is empty !<br/>" ;
return ;
}
set_time_limit( 0 ) ;
if ( strlen( $this->save_file_name ) == 0 ) $this->save_file_name = "list.html" ;
if ( $this->bSaveFile ) $this->FileHandle = fopen( $this->save_file_name, "w+" );
$this->counter = 0 ;
$this->permute( $this->flags_string, "", 0 );
if ( $this->bSaveFile ) fclose( $this->FileHandle );
$this->max_bonds = 0;
unset( $this->bonds ) ;
}
function display( $word )
{
if ( $this->bInitialLetters and $this->bTerminalLetters )
{
$initials = substr( $word, 0, $this->initial_letters_len );
$terminals = substr( $word, -$this->terminal_letters_len, $this->terminal_letters_len );
if ( strcmp( $initials, $this->initial_letters ) == 0 and strcmp( $terminals, $this->terminal_letters ) == 0 )
{
$this->counter++ ;
$outstring = "<font face=\"arial\" size=\"2\">$this->counter) <b>$word</b></font><br/>\r\n" ;
echo $outstring ;
if ( $this->bSaveFile ) fwrite( $this->FileHandle, $outstring ) ;
}
}
else if ( $this->bInitialLetters )
{
$initials = substr( $word, 0, $this->initial_letters_len );
if ( !strcmp( $initials, $this->initial_letters ) == 0 ) return ;
$this->counter++ ;
$outstring = "<font face=\"arial\" size=\"2\">$this->counter) <b>$word</b></font><br/>\r\n" ;
echo $outstring ;
if ( $this->bSaveFile ) fwrite( $this->FileHandle, $outstring ) ;
}
else if ( $this->bTerminalLetters )
{
$terminals = substr( $word, -$this->terminal_letters_len, $this->terminal_letters_len );
if ( !strcmp( $terminals, $this->terminal_letters ) == 0 ) return ;
$this->counter++ ;
$outstring = "<font face=\"arial\" size=\"2\">$this->counter) <b>$word</b></font><br/>\r\n" ;
echo $outstring ;
if ( $this->bSaveFile ) fwrite( $this->FileHandle, $outstring ) ;
}
else
{
$this->counter++ ;
$outstring = "<font face=\"arial\" size=\"2\">$this->counter) <b>$word</b></font><br/>\r\n" ;
echo $outstring ;
if ( $this->bSaveFile ) fwrite( $this->FileHandle, $outstring ) ;
}
}
function permute( $tmp, $word, $level )
{
if ( strlen( $word ) == $this->original_word_length )
{
$this->display( $word );
return ;
}
for ( $i = 0 ; $i < $this->original_word_length ; $i++ )
{
if ( $this->bOne_bond == true and $this->bonds[$level] != -1 and $i != $this->bonds[$level] and $level < $this->max_bonds ) continue ;
if ( strcmp( $tmp{$i}, "N" ) == 0 )
{
$word_tmp = $word ;
$word_tmp .= $this->original_word{$i};
$flags_tmp = $tmp ;
$flags_tmp{$i} = "Y";
$this->permute( $flags_tmp, $word_tmp, $level+1 );
}
}
}
var $counter ;
var $original_word ;
var $original_word_length ;
var $flags_string ;
var $initial_letters ;
var $initial_letters_len;
var $bInitialLetters ;
var $one_bond ;
var $bOne_bond ;
var $terminal_letters ;
var $terminal_letters_len;
var $bTerminalLetters ;
var $bonds ;
var $max_bonds ;
var $bSaveFile ;
var $save_file_name ;
var $FileHandle ;
}
?>
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