A PHP implement for Brainfuck Compiler
<?php/**Brainfuck Compiler on PHP
Copyright 2015 Everstray Jun Sinri Edogawa**/$bc=new BrainfuckCompiler();$bc->compile('++++++++++[>+++++++>++++++++++>+++>+<<<++.>+.+++++++..+++.>++.<.+++.------.--------.>+.>.');/**字符 含义> 指针加一'; public static $PTR_LEFT ='0,0=>0,1=>0); private $codes=array(); private $code_index=0; public function compile($program_code){ $this->codes=str_split($program_code); $this->code_index=0; while($this->code_indexcodes)){ $this->process_code(); } } private function process_code(){ if(BrainfuckCompiler::$DEBUG_MODE){ echo "[DEBUG] process_code at ".$this->code_index; } $code=$this->codes[$this->code_index]; if(BrainfuckCompiler::$DEBUG_MODE){ echo " as ".$code.PHP_EOL; } if($code===BrainfuckCompiler::$PTR_RIGHT){ $this->act_ptr_right(); $this->code_index+=1; } elseif($code===BrainfuckCompiler::$PTR_LEFT){ $this->act_ptr_left(); $this->code_index+=1; } elseif($code===BrainfuckCompiler::$VAL_PLUS){ $this->act_val_plus(); $this->code_index+=1; } elseif($code===BrainfuckCompiler::$VAL_MINUS){ $this->act_val_minus(); $this->code_index+=1; } elseif($code===BrainfuckCompiler::$PTR_OUTPUT){ $this->act_ptr_output(); $this->code_index+=1; } elseif($code===BrainfuckCompiler::$PTR_INPUT){ $this->act_ptr_input($this->codes[$this->code_index+1]); $this->code_index+=2; } elseif($code===BrainfuckCompiler::$WHILE_BEGIN){ $this->act_while_begin(); } elseif($code===BrainfuckCompiler::$WHILE_END){ $this->act_while_end(); } } private function act_ptr_right(){ $this->ptr+=1; if(!isset($this->memory[$this->ptr])){ $this->memory[$this->ptr]=0; } } private function act_ptr_left(){ $this->ptr-=1; if(!isset($this->memory[$this->ptr])){ $this->memory[$this->ptr]=0; } } private function act_val_plus(){ $this->memory[$this->ptr]=($this->memory[$this->ptr]+1)%256; } private function act_val_minus(){ $this->memory[$this->ptr]=($this->memory[$this->ptr]-1)%256; } private function act_ptr_output(){ echo chr($this->memory[$this->ptr]); } private function act_ptr_input($value){ $this->memory[$this->ptr]=($value%256); } private function act_while_begin(){ if($this->memory[$this->ptr]===0){ //find the pair WHILE_END $pair=1; $i=0; for($i=$this->code_index+1;$icodes);$i++){ if($this->codes[$i]===BrainfuckCompiler::$WHILE_BEGIN){ $pair+=1; }elseif($this->codes[$i]===BrainfuckCompiler::$WHILE_END){ $pair-=1; } if($pair==0){ //here it is break; } } $this->code_index=$i; }else{ $this->code_index+=1; } } private function act_while_end(){ if($this->memory[$this->ptr]!==0){ //find the pair WHILE_BEGIN $pair=1; $i=0; for($i=$this->code_index-1;$i>=0;$i--){ if($this->codes[$i]===BrainfuckCompiler::$WHILE_END){ $pair+=1; }elseif($this->codes[$i]===BrainfuckCompiler::$WHILE_BEGIN){ $pair-=1; } if($pair==0){ //her本文来源gaodai#ma#com搞@@代~&码*网/搞gaodaima代码e it is break; } } $this->code_index=$i+1; }else{ $this->code_index+=1; } }}?>
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转载请注明原文链接：Brainfuck Compiler on PHP
转载请注明原文链接：Brainfuck Compiler on PHP
