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Diffstat (limited to 'gcc/ada/a-stwise.adb')
| -rw-r--r-- | gcc/ada/a-stwise.adb | 614 |
1 files changed, 0 insertions, 614 deletions
diff --git a/gcc/ada/a-stwise.adb b/gcc/ada/a-stwise.adb deleted file mode 100644 index 09ac7830c8a..00000000000 --- a/gcc/ada/a-stwise.adb +++ /dev/null @@ -1,614 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- A D A . S T R I N G S . W I D E _ S E A R C H -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2015, Free Software Foundation, Inc. -- --- -- --- GNAT is free software; you can redistribute it and/or modify it under -- --- terms of the GNU General Public License as published by the Free Soft- -- --- ware Foundation; either version 3, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. -- --- -- --- As a special exception under Section 7 of GPL version 3, you are granted -- --- additional permissions described in the GCC Runtime Library Exception, -- --- version 3.1, as published by the Free Software Foundation. -- --- -- --- You should have received a copy of the GNU General Public License and -- --- a copy of the GCC Runtime Library Exception along with this program; -- --- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- --- <http://www.gnu.org/licenses/>. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with Ada.Strings.Wide_Maps; use Ada.Strings.Wide_Maps; -with System; use System; - -package body Ada.Strings.Wide_Search is - - ----------------------- - -- Local Subprograms -- - ----------------------- - - function Belongs - (Element : Wide_Character; - Set : Wide_Maps.Wide_Character_Set; - Test : Membership) return Boolean; - pragma Inline (Belongs); - -- Determines if the given element is in (Test = Inside) or not in - -- (Test = Outside) the given character set. - - ------------- - -- Belongs -- - ------------- - - function Belongs - (Element : Wide_Character; - Set : Wide_Maps.Wide_Character_Set; - Test : Membership) return Boolean - is - begin - if Test = Inside then - return Is_In (Element, Set); - else - return not Is_In (Element, Set); - end if; - end Belongs; - - ----------- - -- Count -- - ----------- - - function Count - (Source : Wide_String; - Pattern : Wide_String; - Mapping : Wide_Maps.Wide_Character_Mapping := Wide_Maps.Identity) - return Natural - is - PL1 : constant Integer := Pattern'Length - 1; - Num : Natural; - Ind : Natural; - Cur : Natural; - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - Num := 0; - Ind := Source'First; - - -- Unmapped case - - if Mapping'Address = Wide_Maps.Identity'Address then - while Ind <= Source'Last - PL1 loop - if Pattern = Source (Ind .. Ind + PL1) then - Num := Num + 1; - Ind := Ind + Pattern'Length; - else - Ind := Ind + 1; - end if; - end loop; - - -- Mapped case - - else - while Ind <= Source'Last - PL1 loop - Cur := Ind; - for K in Pattern'Range loop - if Pattern (K) /= Value (Mapping, Source (Cur)) then - Ind := Ind + 1; - goto Cont; - else - Cur := Cur + 1; - end if; - end loop; - - Num := Num + 1; - Ind := Ind + Pattern'Length; - - <<Cont>> - null; - end loop; - end if; - - -- Return result - - return Num; - end Count; - - function Count - (Source : Wide_String; - Pattern : Wide_String; - Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural - is - PL1 : constant Integer := Pattern'Length - 1; - Num : Natural; - Ind : Natural; - Cur : Natural; - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - -- Check for null pointer in case checks are off - - if Mapping = null then - raise Constraint_Error; - end if; - - Num := 0; - Ind := Source'First; - while Ind <= Source'Last - PL1 loop - Cur := Ind; - for K in Pattern'Range loop - if Pattern (K) /= Mapping (Source (Cur)) then - Ind := Ind + 1; - goto Cont; - else - Cur := Cur + 1; - end if; - end loop; - - Num := Num + 1; - Ind := Ind + Pattern'Length; - - <<Cont>> - null; - end loop; - - return Num; - end Count; - - function Count - (Source : Wide_String; - Set : Wide_Maps.Wide_Character_Set) return Natural - is - N : Natural := 0; - - begin - for J in Source'Range loop - if Is_In (Source (J), Set) then - N := N + 1; - end if; - end loop; - - return N; - end Count; - - ---------------- - -- Find_Token -- - ---------------- - - procedure Find_Token - (Source : Wide_String; - Set : Wide_Maps.Wide_Character_Set; - From : Positive; - Test : Membership; - First : out Positive; - Last : out Natural) - is - begin - for J in From .. Source'Last loop - if Belongs (Source (J), Set, Test) then - First := J; - - for K in J + 1 .. Source'Last loop - if not Belongs (Source (K), Set, Test) then - Last := K - 1; - return; - end if; - end loop; - - -- Here if J indexes first char of token, and all chars after J - -- are in the token. - - Last := Source'Last; - return; - end if; - end loop; - - -- Here if no token found - - First := From; - Last := 0; - end Find_Token; - - procedure Find_Token - (Source : Wide_String; - Set : Wide_Maps.Wide_Character_Set; - Test : Membership; - First : out Positive; - Last : out Natural) - is - begin - for J in Source'Range loop - if Belongs (Source (J), Set, Test) then - First := J; - - for K in J + 1 .. Source'Last loop - if not Belongs (Source (K), Set, Test) then - Last := K - 1; - return; - end if; - end loop; - - -- Here if J indexes first char of token, and all chars after J - -- are in the token. - - Last := Source'Last; - return; - end if; - end loop; - - -- Here if no token found - - -- RM 2005 A.4.3 (68/1) specifies that an exception must be raised if - -- Source'First is not positive and is assigned to First. Formulation - -- is slightly different in RM 2012, but the intent seems similar, so - -- we check explicitly for that condition. - - if Source'First not in Positive then - raise Constraint_Error; - - else - First := Source'First; - Last := 0; - end if; - end Find_Token; - - ----------- - -- Index -- - ----------- - - function Index - (Source : Wide_String; - Pattern : Wide_String; - Going : Direction := Forward; - Mapping : Wide_Maps.Wide_Character_Mapping := Wide_Maps.Identity) - return Natural - is - PL1 : constant Integer := Pattern'Length - 1; - Cur : Natural; - - Ind : Integer; - -- Index for start of match check. This can be negative if the pattern - -- length is greater than the string length, which is why this variable - -- is Integer instead of Natural. In this case, the search loops do not - -- execute at all, so this Ind value is never used. - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - -- Forwards case - - if Going = Forward then - Ind := Source'First; - - -- Unmapped forward case - - if Mapping'Address = Wide_Maps.Identity'Address then - for J in 1 .. Source'Length - PL1 loop - if Pattern = Source (Ind .. Ind + PL1) then - return Ind; - else - Ind := Ind + 1; - end if; - end loop; - - -- Mapped forward case - - else - for J in 1 .. Source'Length - PL1 loop - Cur := Ind; - - for K in Pattern'Range loop - if Pattern (K) /= Value (Mapping, Source (Cur)) then - goto Cont1; - else - Cur := Cur + 1; - end if; - end loop; - - return Ind; - - <<Cont1>> - Ind := Ind + 1; - end loop; - end if; - - -- Backwards case - - else - -- Unmapped backward case - - Ind := Source'Last - PL1; - - if Mapping'Address = Wide_Maps.Identity'Address then - for J in reverse 1 .. Source'Length - PL1 loop - if Pattern = Source (Ind .. Ind + PL1) then - return Ind; - else - Ind := Ind - 1; - end if; - end loop; - - -- Mapped backward case - - else - for J in reverse 1 .. Source'Length - PL1 loop - Cur := Ind; - - for K in Pattern'Range loop - if Pattern (K) /= Value (Mapping, Source (Cur)) then - goto Cont2; - else - Cur := Cur + 1; - end if; - end loop; - - return Ind; - - <<Cont2>> - Ind := Ind - 1; - end loop; - end if; - end if; - - -- Fall through if no match found. Note that the loops are skipped - -- completely in the case of the pattern being longer than the source. - - return 0; - end Index; - - function Index - (Source : Wide_String; - Pattern : Wide_String; - Going : Direction := Forward; - Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural - is - PL1 : constant Integer := Pattern'Length - 1; - Ind : Natural; - Cur : Natural; - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - -- Check for null pointer in case checks are off - - if Mapping = null then - raise Constraint_Error; - end if; - - -- If Pattern longer than Source it can't be found - - if Pattern'Length > Source'Length then - return 0; - end if; - - -- Forwards case - - if Going = Forward then - Ind := Source'First; - for J in 1 .. Source'Length - PL1 loop - Cur := Ind; - - for K in Pattern'Range loop - if Pattern (K) /= Mapping.all (Source (Cur)) then - goto Cont1; - else - Cur := Cur + 1; - end if; - end loop; - - return Ind; - - <<Cont1>> - Ind := Ind + 1; - end loop; - - -- Backwards case - - else - Ind := Source'Last - PL1; - for J in reverse 1 .. Source'Length - PL1 loop - Cur := Ind; - - for K in Pattern'Range loop - if Pattern (K) /= Mapping.all (Source (Cur)) then - goto Cont2; - else - Cur := Cur + 1; - end if; - end loop; - - return Ind; - - <<Cont2>> - Ind := Ind - 1; - end loop; - end if; - - -- Fall through if no match found. Note that the loops are skipped - -- completely in the case of the pattern being longer than the source. - - return 0; - end Index; - - function Index - (Source : Wide_String; - Set : Wide_Maps.Wide_Character_Set; - Test : Membership := Inside; - Going : Direction := Forward) return Natural - is - begin - -- Forwards case - - if Going = Forward then - for J in Source'Range loop - if Belongs (Source (J), Set, Test) then - return J; - end if; - end loop; - - -- Backwards case - - else - for J in reverse Source'Range loop - if Belongs (Source (J), Set, Test) then - return J; - end if; - end loop; - end if; - - -- Fall through if no match - - return 0; - end Index; - - function Index - (Source : Wide_String; - Pattern : Wide_String; - From : Positive; - Going : Direction := Forward; - Mapping : Wide_Maps.Wide_Character_Mapping := Wide_Maps.Identity) - return Natural - is - begin - if Going = Forward then - if From < Source'First then - raise Index_Error; - end if; - - return - Index (Source (From .. Source'Last), Pattern, Forward, Mapping); - - else - if From > Source'Last then - raise Index_Error; - end if; - - return - Index (Source (Source'First .. From), Pattern, Backward, Mapping); - end if; - end Index; - - function Index - (Source : Wide_String; - Pattern : Wide_String; - From : Positive; - Going : Direction := Forward; - Mapping : Wide_Maps.Wide_Character_Mapping_Function) return Natural - is - begin - if Going = Forward then - if From < Source'First then - raise Index_Error; - end if; - - return Index - (Source (From .. Source'Last), Pattern, Forward, Mapping); - - else - if From > Source'Last then - raise Index_Error; - end if; - - return Index - (Source (Source'First .. From), Pattern, Backward, Mapping); - end if; - end Index; - - function Index - (Source : Wide_String; - Set : Wide_Maps.Wide_Character_Set; - From : Positive; - Test : Membership := Inside; - Going : Direction := Forward) return Natural - is - begin - if Going = Forward then - if From < Source'First then - raise Index_Error; - end if; - - return - Index (Source (From .. Source'Last), Set, Test, Forward); - - else - if From > Source'Last then - raise Index_Error; - end if; - - return - Index (Source (Source'First .. From), Set, Test, Backward); - end if; - end Index; - - --------------------- - -- Index_Non_Blank -- - --------------------- - - function Index_Non_Blank - (Source : Wide_String; - Going : Direction := Forward) return Natural - is - begin - if Going = Forward then - for J in Source'Range loop - if Source (J) /= Wide_Space then - return J; - end if; - end loop; - - else -- Going = Backward - for J in reverse Source'Range loop - if Source (J) /= Wide_Space then - return J; - end if; - end loop; - end if; - - -- Fall through if no match - - return 0; - end Index_Non_Blank; - - function Index_Non_Blank - (Source : Wide_String; - From : Positive; - Going : Direction := Forward) return Natural - is - begin - if Going = Forward then - if From < Source'First then - raise Index_Error; - end if; - - return - Index_Non_Blank (Source (From .. Source'Last), Forward); - - else - if From > Source'Last then - raise Index_Error; - end if; - - return - Index_Non_Blank (Source (Source'First .. From), Backward); - end if; - end Index_Non_Blank; - -end Ada.Strings.Wide_Search; |