yamamoto #9171(2009/06/15 02:54 GMT) [ Scala ] Rating-2/2=-1.00[open]
完成度低めですが、ErlangとCの書式変換など。 はじめ、Erlangで書こうとしたが挫折。 ScalaのExtractorで実装しはじめたものの、 Erlangの書式の柔軟さに負けた感のある今日この頃。
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// printf書式文字列変換(お題 : http://ja.doukaku.org/259/) // // Erlangの書式文字文字列 <--> C言語の書式文字列 // コマンドラインargs先頭で処理を指定、残りの引数で書式指定 // c2e : C --> Erlang // e2c : Erlang --> C // 例) // c2e %f %020d %.20d %+20.10d %-20f %-20.10f // e2c ~f ~20.0p ~.20p ~20.10p ~-20f ~-20.10f // e2c ~10s ~-10s ~10.3.+s ~10.10.+s ~10.7.+s // ( ~10.3.+s ~10.10.+s ~10.7.+s はCの書式では正確に対応できません ) object Main { def main(args : Array[String]) : Unit = { args.toList match { case "e2c" :: xs => for(x<-xs ; ErlFormatTerm(flag,termF,termP,termPad,termMod,termC) = x ) { //println(flag,termF,termP,termPad,termMod,termC) print (x + " ---> ") val flags = (flag,termPad) match{ case ("-","" ) => "-" case ("-"," ") => "-" case ("-","0") => "-" case ("" ," ") => " " case ("" ,"0") => "0" case _ => "" } termC match { case "B" if termP=="8" => println ( CFormatTerm(flags,termF, "","o") ) case "B" if termP=="16" => println ( CFormatTerm(flags,termF, "","x") ) case "c" => println ( CFormatTerm(flags,termF,termP,"c") ) case "s" => println ( CFormatTerm(flags,termF,termP,"s") ) case "f" => println ( CFormatTerm(flags,termF,termP,"f") ) case "e" => println ( CFormatTerm(flags,termF,termP,"e") ) case "g" => println ( CFormatTerm(flags,termF,termP,"g") ) // case _ => println ( "未対応" ) } } case "c2e" :: xs => for(x<-xs ; CFormatTerm(flags,fieldWidth,precision,specifier) = x ) { print (x + " ---> ") val pad = flags match{ case "+" => "" case "-" => "" case " " => "" case "0" => "0" case _ => "" } val flag = flags match{ case "-" => "-" // case "+" => "" case " " => "" case "0" => "" case _ => "" } specifier match{ // F P Pad Mod C case "d" | "i" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","p") ) case "u" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","p") ) case "o" => println ( ErlFormatTerm(flag,fieldWidth, "8", "","","B") ) case "x" => println ( ErlFormatTerm(flag,fieldWidth, "16", "","","B") ) case "X" => println ( ErlFormatTerm(flag,fieldWidth, "16", "","","B") ) case "f" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","f") ) case "e" | "E" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","e") ) case "a" | "A" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","p") ) case "g" | "G" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","g") ) case "c" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","c") ) case "s" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","s") ) case "N" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","p") ) case "p" => println ( ErlFormatTerm(flag,fieldWidth, "16","0","","B") ) //case "%" => case _ => println ( "未対応" ) } } case Nil => case _ => } () } } object ErlFormatTerm{ // F.P.PadModC def apply(flag :String , termF:String , termP:String , termPad:String , termMod:String , termC:String) : String = { val tail = termMod+termC (termF,termP,termPad) match { // fmt0 case ("" ,"",_) => "~"+tail // // fmt1 case (f ,"", "") if f != "" => "~" + flag + f + tail // fmt2 case (f ,"",pad) if f != "" => "~" + flag + f +"."+pad+ tail // // fmt3 case ("" , p, _) if p != "" => "~."+p + tail // // fmt4 case (f , p, "") => "~"+ flag + f+"."+p +tail // fmt5 case (f , p,pad) => "~"+ flag + f+"."+p+"."+pad+tail } } // def unapply(format:String) : Option[(String,String,String,String,String,String)] ={ if ( format(0) != '~' ) return None val reFmt0 = """~([^.\d])""".r // ~s val reFmt1 = """~(-?)(\d+)([^.\d])""".r // ~10s , ~-10s val reFmt2 = """~(-?)(\d+)\.(.)([^.\d])""".r // ~10.+s val reFmt3 = """~\.(\d+)([^.\d])""".r // ~.5s val reFmt4 = """~(-?)(\d+)\.(\d+)([^.\d])""".r // ~-10.5s val reFmt5 = """~(-?)(\d+)\.(\d+)\.(.)([^.\d])""".r // ~-10.5.+s // format match { case reFmt0( termC) => Some("" , "","", "","",termC) case reFmt1(flag,termF ,termC) => Some(flag,termF,"", "","",termC) case reFmt2(flag,termF,termPad ,termC) => Some(flag,termF,"", termPad,"",termC) case reFmt3( termP ,termC) => Some("" , "","", "","",termC) case reFmt4(flag,termF,termP ,termC) => Some(flag,termF,termP, "","",termC) case reFmt5(flag,termF,termP,termPad,termC) => Some(flag,termF,termP,termPad,"",termC) case _ => None } } } object CFormatTerm{ // %[flags][fieldWidth][.precision]specifier def apply(flags:String , fieldWidth:String, precision:String , specifier:String ) : String = { "%"+flags+fieldWidth + {if(precision!="") "."+ precision else ""} +specifier } // def unapply(format:String) : Option[(String,String,String,String)] ={ if ( format(0) != '%' ) return None // val reFmt0 = """%([a-zA-Z])""".r val reFmt1 = """%([-+ 0#])([\d*]+)([a-zA-Z])""".r val reFmt2 = """%([\d*]+)([a-zA-Z])""".r val reFmt3 = """%([-+ 0#])([\d*]+)\.([\d*]+)([a-zA-Z])""".r val reFmt4 = """%([\d*]+)\.([\d*]+)([a-zA-Z])""".r val reFmt5 = """%\.([\d*]+)([a-zA-Z])""".r format match { case reFmt0( specifier) => Some( "", "", "",specifier) case reFmt1(flags,fieldWidth, specifier) => Some(flags,fieldWidth, "",specifier) case reFmt2( fieldWidth, specifier) => Some( "",fieldWidth, "",specifier) case reFmt3(flags,fieldWidth,precision,specifier) => Some(flags,fieldWidth,precision,specifier) case reFmt4( fieldWidth,precision,specifier) => Some( "",fieldWidth,precision,specifier) case reFmt5( precision,specifier) => Some( "", "",precision,specifier) case _ => None } } }
Rating-2/2=-1.00-0+
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yamamoto
#9171()
[
Scala
]
Rating-2/2=-1.00[open]
完成度低めですが、ErlangとCの書式変換など。 はじめ、Erlangで書こうとしたが挫折。 ScalaのExtractorで実装しはじめたものの、 Erlangの書式の柔軟さに負けた感のある今日この頃。
// printf書式文字列変換(お題 : http://ja.doukaku.org/259/) // // Erlangの書式文字文字列 <--> C言語の書式文字列 // コマンドラインargs先頭で処理を指定、残りの引数で書式指定 // c2e : C --> Erlang // e2c : Erlang --> C // 例) // c2e %f %020d %.20d %+20.10d %-20f %-20.10f // e2c ~f ~20.0p ~.20p ~20.10p ~-20f ~-20.10f // e2c ~10s ~-10s ~10.3.+s ~10.10.+s ~10.7.+s // ( ~10.3.+s ~10.10.+s ~10.7.+s はCの書式では正確に対応できません ) object Main { def main(args : Array[String]) : Unit = { args.toList match { case "e2c" :: xs => for(x<-xs ; ErlFormatTerm(flag,termF,termP,termPad,termMod,termC) = x ) { //println(flag,termF,termP,termPad,termMod,termC) print (x + " ---> ") val flags = (flag,termPad) match{ case ("-","" ) => "-" case ("-"," ") => "-" case ("-","0") => "-" case ("" ," ") => " " case ("" ,"0") => "0" case _ => "" } termC match { case "B" if termP=="8" => println ( CFormatTerm(flags,termF, "","o") ) case "B" if termP=="16" => println ( CFormatTerm(flags,termF, "","x") ) case "c" => println ( CFormatTerm(flags,termF,termP,"c") ) case "s" => println ( CFormatTerm(flags,termF,termP,"s") ) case "f" => println ( CFormatTerm(flags,termF,termP,"f") ) case "e" => println ( CFormatTerm(flags,termF,termP,"e") ) case "g" => println ( CFormatTerm(flags,termF,termP,"g") ) // case _ => println ( "未対応" ) } } case "c2e" :: xs => for(x<-xs ; CFormatTerm(flags,fieldWidth,precision,specifier) = x ) { print (x + " ---> ") val pad = flags match{ case "+" => "" case "-" => "" case " " => "" case "0" => "0" case _ => "" } val flag = flags match{ case "-" => "-" // case "+" => "" case " " => "" case "0" => "" case _ => "" } specifier match{ // F P Pad Mod C case "d" | "i" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","p") ) case "u" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","p") ) case "o" => println ( ErlFormatTerm(flag,fieldWidth, "8", "","","B") ) case "x" => println ( ErlFormatTerm(flag,fieldWidth, "16", "","","B") ) case "X" => println ( ErlFormatTerm(flag,fieldWidth, "16", "","","B") ) case "f" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","f") ) case "e" | "E" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","e") ) case "a" | "A" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","p") ) case "g" | "G" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","g") ) case "c" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","c") ) case "s" => println ( ErlFormatTerm(flag,fieldWidth,precision,pad,"","s") ) case "N" => println ( ErlFormatTerm(flag,fieldWidth,precision, "","","p") ) case "p" => println ( ErlFormatTerm(flag,fieldWidth, "16","0","","B") ) //case "%" => case _ => println ( "未対応" ) } } case Nil => case _ => } () } } object ErlFormatTerm{ // F.P.PadModC def apply(flag :String , termF:String , termP:String , termPad:String , termMod:String , termC:String) : String = { val tail = termMod+termC (termF,termP,termPad) match { // fmt0 case ("" ,"",_) => "~"+tail // // fmt1 case (f ,"", "") if f != "" => "~" + flag + f + tail // fmt2 case (f ,"",pad) if f != "" => "~" + flag + f +"."+pad+ tail // // fmt3 case ("" , p, _) if p != "" => "~."+p + tail // // fmt4 case (f , p, "") => "~"+ flag + f+"."+p +tail // fmt5 case (f , p,pad) => "~"+ flag + f+"."+p+"."+pad+tail } } // def unapply(format:String) : Option[(String,String,String,String,String,String)] ={ if ( format(0) != '~' ) return None val reFmt0 = """~([^.\d])""".r // ~s val reFmt1 = """~(-?)(\d+)([^.\d])""".r // ~10s , ~-10s val reFmt2 = """~(-?)(\d+)\.(.)([^.\d])""".r // ~10.+s val reFmt3 = """~\.(\d+)([^.\d])""".r // ~.5s val reFmt4 = """~(-?)(\d+)\.(\d+)([^.\d])""".r // ~-10.5s val reFmt5 = """~(-?)(\d+)\.(\d+)\.(.)([^.\d])""".r // ~-10.5.+s // format match { case reFmt0( termC) => Some("" , "","", "","",termC) case reFmt1(flag,termF ,termC) => Some(flag,termF,"", "","",termC) case reFmt2(flag,termF,termPad ,termC) => Some(flag,termF,"", termPad,"",termC) case reFmt3( termP ,termC) => Some("" , "","", "","",termC) case reFmt4(flag,termF,termP ,termC) => Some(flag,termF,termP, "","",termC) case reFmt5(flag,termF,termP,termPad,termC) => Some(flag,termF,termP,termPad,"",termC) case _ => None } } } object CFormatTerm{ // %[flags][fieldWidth][.precision]specifier def apply(flags:String , fieldWidth:String, precision:String , specifier:String ) : String = { "%"+flags+fieldWidth + {if(precision!="") "."+ precision else ""} +specifier } // def unapply(format:String) : Option[(String,String,String,String)] ={ if ( format(0) != '%' ) return None // val reFmt0 = """%([a-zA-Z])""".r val reFmt1 = """%([-+ 0#])([\d*]+)([a-zA-Z])""".r val reFmt2 = """%([\d*]+)([a-zA-Z])""".r val reFmt3 = """%([-+ 0#])([\d*]+)\.([\d*]+)([a-zA-Z])""".r val reFmt4 = """%([\d*]+)\.([\d*]+)([a-zA-Z])""".r val reFmt5 = """%\.([\d*]+)([a-zA-Z])""".r format match { case reFmt0( specifier) => Some( "", "", "",specifier) case reFmt1(flags,fieldWidth, specifier) => Some(flags,fieldWidth, "",specifier) case reFmt2( fieldWidth, specifier) => Some( "",fieldWidth, "",specifier) case reFmt3(flags,fieldWidth,precision,specifier) => Some(flags,fieldWidth,precision,specifier) case reFmt4( fieldWidth,precision,specifier) => Some( "",fieldWidth,precision,specifier) case reFmt5( precision,specifier) => Some( "", "",precision,specifier) case _ => None } } }Rating-2/2=-1.00-0+
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