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version 0.81
[asm2wsl.git] / src-wsl / transf-min.wsl
diff --git a/src-wsl/transf-min.wsl b/src-wsl/transf-min.wsl
new file mode 100755 (executable)
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+C:"
+Copyright (C) 2012,2015 Doni Pracner
+http://perun.dmi.rs/pracner
+
+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 (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, see
+<http://www.gnu.org/licenses/>.
+==========================================================";
+
+C:"Automatic transformation tool for simplification of WSL";
+C:"code automaticaly translated from assembly using asm2wsl.";
+
+C:"a very simple version, ment to be fast and relatively
+efficient. It is aimed at action-system programs and should
+remove them from the program, while doing other
+simlifications in the process.";
+
+C:"set the following so that Action Systems are not
+automaticaly treated as regular";
+C:"Not neccessary with recent versions of FermaT";
+Assume_A_S_Regular := 0;
+
+C:"Main procedure to transform the loaded program";
+MW_PROC @Process_Prog() ==
+
+       @Trans(TR_Constant_Propagation, "");
+
+       C:"Try to remove the Action systems";
+       FOREACH Statement DO
+               IF @ST(@I) = T_A_S THEN
+                       IF @Trans?(TR_Simplify_Action_System) THEN
+                               @Trans(TR_Simplify_Action_System, "")
+                       FI;
+                       IF @Trans?(TR_Collapse_Action_System) THEN
+                               @Trans(TR_Collapse_Action_System, "");
+                       FI;
+               ELSIF @Trans?(TR_Remove_All_Redundant_Vars) THEN
+                       @Trans(TR_Remove_All_Redundant_Vars, "");
+               ELSIF @ST(@I) = T_Skip THEN
+                       @Delete
+               FI
+       OD;
+
+       C:"remove all the comments ";
+       FOREACH Statement DO
+       IF @ST(@I) = T_Comment THEN
+                       @Delete
+       FI
+       OD;
+
+       FOREACH Statement DO
+               IF @Trans?(TR_Simplify_Item) THEN
+                               @Trans(TR_Simplify_Item,"")
+               FI
+       OD;
+
+       C:"Convert DO loops into WHILE loops";
+       FOREACH Statement DO
+               IF @Trans?(TR_Floop_To_While) THEN
+                       @Trans(TR_Floop_To_While, "");
+               FI
+       OD;
+       C:"Go back to the start, and remove redundant";
+       @Goto(< >);
+       @Trans(TR_Delete_All_Redundant, "");
+       SKIP
+END;
+
+MW_PROC @Get_New_Name(VAR str) ==
+       IF @Ends_With?(str, ".wsl") THEN
+               str := SUBSTR(str, 0, SLENGTH(str)-4)
+       FI;
+       str := str ++ "_t.wsl"
+END;
+
+MW_PROC @Prog_Stat_Comp(Pro, After VAR)==
+  VAR < ma := 0, mb :=1 > :
+  ma := @McCabe(Pro);
+  mb := @McCabe(After);
+  PRINT ("McCabe ", ma, "  ", mb, "  ",(mb-ma));
+  ma := @Stat_Count(Pro);
+  mb := @Stat_Count(After);
+  PRINT ("Statem ", ma, "  ",mb, "  ",(mb-ma));
+  ma := @CFDF_Metric(Pro);
+  mb := @CFDF_Metric(After);
+  PRINT ("CF/DF  ", ma,"  ", mb,"  ", (mb-ma));
+  ma := @Total_Size(Pro);
+  mb := @Total_Size(After);
+  PRINT ("Size   ", ma,"  ", mb, "  ",(mb-ma));
+  ma := @Struct_Metric(Pro);
+  mb := @Struct_Metric(After);
+  PRINT ("Struct ", ma, "  ",mb, "  ",(mb-ma));
+  SKIP
+  ENDVAR
+END;
+
+MW_PROC @Process_File(filename) ==
+               IF @File_Exists?(filename) THEN
+                       @New_Program(@Parse_File(filename, T_Statements));
+                       PRINT("Processing: ", filename);
+                       prog := @Program;
+                       @Process_Prog();
+                       @Get_New_Name(VAR filename);
+                       @PP_Item(@Program, 80, filename);
+                       PRINT(filename);
+                       @Prog_Stat_Comp(prog, @Program);
+               ELSE
+                       PRINT("ERROR: File ",filename," not found");
+               FI
+END;
+
+VAR< prog := < >, inifilename := "transf.ini",
+       filename:="", file := "", inifile:= "",
+       Argv := ARGV
+>:
+C:"First one is the script name that is being executed";
+Argv := TAIL(Argv);
+
+IF Argv = < > THEN
+       PRINT("no arguments passed; using ",inifilename);
+       IF @File_Exists?(inifilename) THEN
+               inifile := @Open_Input_File(inifilename);
+               filename := @Read_Line(inifile);
+               C:"check if the loaded is an EOF";
+               WHILE NOT @EOF?(filename) DO
+                       @Process_File(filename);
+                       filename := @Read_Line(inifile)
+               OD;
+               @Close_Input_Port(inifile);
+       ELSE
+               PRINT("ini file (",inifilename,") not found.",
+               " it should contain a list of filenames to be converted");
+               PRINT("you can input a filename now:");
+               filename := @Read_Line(Standard_Input_Port);
+               @Process_File(filename);
+       FI
+ELSE
+       FOR arg IN Argv DO
+               @Process_File(arg);
+       OD
+FI
+ENDVAR
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