src-wsl/transf-min.wsl

   1 C:"
   2 Copyright (C) 2012 Doni Pracner http://perun.dmi.rs/pracner
   3
   4 This program is free software; you can redistribute it
   5 and/or modify it under the terms of the GNU General Public
   6 License as published by the Free Software Foundation; either
   7 version 3 of the License, or (at your option) any later
   8 version.
   9
  10 This program is distributed in the hope that it will be
  11 useful, but WITHOUT ANY WARRANTY; without even the implied
  12 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  13 PURPOSE. See the GNU General Public License for more
  14 details.
  15
  16 You should have received a copy of the GNU General Public
  17 License along with this program. If not, see
  18 <http://www.gnu.org/licenses/>.
  19 ==========================================================";
  20
  21 C:"Automatic transformation tool for simplification of WSL";
  22 C:"code automaticaly translated from assembly using asm2wsl.";
  23 C:"a simple version";
  24 MW_PROC @Process_Prog() ==
  25         @Trans(TR_Constant_Propagation, "");
  26         FOREACH Statement DO
  27                 IF @ST(@I) = T_A_S THEN
  28                         C:"don't need to test for this, works for T_A_S";
  29                         @Trans(TR_Simplify_Action_System, "");
  30                         IF @Trans?(TR_Collapse_Action_System) THEN
  31                                 @Trans(TR_Collapse_Action_System, "");
  32                         FI;
  33                 ELSIF @Trans?(TR_Remove_All_Redundant_Vars) THEN
  34                         @Trans(TR_Remove_All_Redundant_Vars, "");
  35                 ELSIF @ST(@I) = T_Skip THEN
  36                         @Delete
  37                 FI
  38         OD;
  39         C:"remove all the comments ";
  40         FOREACH Statement DO
  41         IF @ST(@I) = T_Comment THEN
  42                         @Delete
  43         FI
  44         OD;
  45         C:"Convert DO loops into WHILE loops";
  46         FOREACH Statement DO
  47                 IF @Trans?(TR_Floop_To_While) THEN
  48                         @Trans(TR_Floop_To_While, "");
  49                 FI
  50         OD;
  51         C:"Go back to the start, and remove redundant";
  52         @GOTO(< >);
  53         @Trans(TR_Delete_All_Redundant, "");
  54         SKIP
  55 END;
  56
  57 BEGIN
  58 VAR< prog := < >, inifilename := "transf.ini",
  59         filename:="", file := "", inifile:= ""
  60 >:
  61 IF @File_Exists?(inifilename) THEN
  62         inifile := @Open_Input_File(inifilename);
  63         filename := @Read_Line(inifile);
  64         WHILE NOT @EOF?(filename) DO
  65                 IF @File_Exists?(filename) THEN
  66                         @New_Program(@Parse_File(filename, T_Statements));
  67                         PRINT("Processing: ", filename);
  68                         prog := @Program;
  69                         @Process_Prog();
  70                         Get_New_Name(VAR filename);
  71                         @PP_Item(@Program, 80, filename);
  72                         Prog_Stat(prog);
  73                         PRINT("");
  74                         PRINT("After Conversion");
  75                         Prog_Stat(@Program)
  76                 FI;
  77                 filename := @Read_Line(inifile)
  78         OD;
  79         @Close_Input_Port(inifile);
  80 ELSE
  81     PRINT("ini file (",inifilename,") not found.",
  82     " it should contain a list of filenames to be converted");
  83     PRINT("you can input a filename now:");
  84     filename := @Read_Line(Standard_Input_Port);
  85     IF @File_Exists?(filename) THEN
  86         @New_Program(@Parse_File(filename, T_Statements));
  87         @Process_Prog();
  88         Get_New_Name(VAR filename);
  89         @PP_Item(@Program, 80, filename)
  90     FI;
  91 FI
  92 ENDVAR
  93 WHERE
  94
  95 PROC Prog_Stat(Pro VAR)==
  96   PRINT ("Mc ", @McCabe(Pro));
  97   PRINT ("Statements ", @Stat_Count(Pro));
  98   PRINT ("Control/data Flow ", @CFDF_Metric(Pro));
  99   PRINT ("Size(nodes) ", @Total_Size(Pro));
 100   PRINT ("Struct ", @Struct_Metric(Pro));
 101   SKIP
 102 END
 103
 104 PROC Get_New_Name(VAR str) ==
 105         IF @Ends_With?(str, ".wsl") THEN
 106                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 107         FI;
 108         str := str ++ "_t.wsl"
 109 END
 110
 111 PROC Get_Before_Name(VAR str) ==
 112         IF @Ends_With?(str, ".wsl") THEN
 113                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 114         FI;
 115         str := str ++ "_b.wsl"
 116 END
 117
 118 END