Adding support for a wave option file that selects signals to be displayed (#121)

Adding support for a wave option file that selects signals to be displayed on the waveform (currently only works with the ghw wave format). Only full signal paths are supported now (no wildcards). Wave option file version set to 1.0.

1 files changed, 77 insertions, 0 deletions

diff --git a/src/grt/grt-strings.adb b/src/grt/grt-strings.adb
index 38e2c6b4e..82fd331e5 100644
--- a/src/grt/grt-strings.adb
+++ b/src/grt/grt-strings.adb
@@ -30,6 +30,46 @@ package body Grt.Strings is
       return C = ' ' or C = NBSP or C = HT;
    end Is_Whitespace;
 
+   function First_Non_Whitespace_Pos (Str : String) return Integer is
+   begin
+      for I in Str'Range loop
+         if not Is_Whitespace (Str (I)) then
+            return I;
+         end if;
+      end loop;
+      return -1;
+   end First_Non_Whitespace_Pos;
+
+   function Last_Non_Whitespace_Pos (Str : String) return Integer is
+   begin
+      for Index in reverse Str'Range loop
+         if not Is_Whitespace (Str (Index)) then
+            return Index;
+         end if;
+      end loop;
+      return -1;
+   end Last_Non_Whitespace_Pos;
+
+   function New_Line_Pos (Line : String) return Integer is
+   begin
+      return Find (Line, ASCII.LF);
+   end New_Line_Pos;
+
+   function Find (Str : String; Char : Character) return Integer is
+   begin
+      for Index in Str'Range loop
+         if Str (Index) = Char then
+            return Index;
+         end if;
+      end loop;
+      return -1;
+   end Find;
+   function Find (Str : String; Char : Character; Start : Positive)
+                 return Integer is
+   begin
+      return Find (Str (Start .. Str'Last), Char);
+   end Find;
+
    function To_Lower (C : Character) return Character is
    begin
       if C in 'A' .. 'Z' then
@@ -38,4 +78,41 @@ package body Grt.Strings is
          return C;
       end if;
    end To_Lower;
+
+   procedure To_Lower (S : in out String) is
+   begin
+      for I in S'Range loop
+         S (I) := To_Lower (S (I));
+      end loop;
+   end To_Lower;
+
+   function Value (Str : String) return Integer
+   is
+      Decimal : Positive;
+      Value_Tmp : Natural;
+      Digit : Integer;
+   begin
+      Decimal := 1;
+      Value_Tmp := 0;
+
+      for Index in reverse Str'Range loop
+         Digit := Value (Str (Index));
+         if Digit = -1 then
+            return -1;
+         end if;
+         Value_Tmp := Value_Tmp + Digit * Decimal;
+         Decimal := Decimal * 10;
+      end loop;
+      return Value_Tmp;
+   end Value;
+
+   function Value (Char : Character) return Integer is
+   begin
+      case Char is
+         when '0' .. '9' =>
+            return Character'Pos (Char) - Character'Pos ('0');
+         when others =>
+            return -1;
+      end case;
+   end Value;
 end Grt.Strings;