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Diffstat (limited to 'gcc-4.4.3/gcc/ada/a-strsea.adb')
-rw-r--r-- | gcc-4.4.3/gcc/ada/a-strsea.adb | 477 |
1 files changed, 0 insertions, 477 deletions
diff --git a/gcc-4.4.3/gcc/ada/a-strsea.adb b/gcc-4.4.3/gcc/ada/a-strsea.adb deleted file mode 100644 index b613895b7..000000000 --- a/gcc-4.4.3/gcc/ada/a-strsea.adb +++ /dev/null @@ -1,477 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- A D A . S T R I N G S . S E A R C H -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2009, 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. -- --- -- ------------------------------------------------------------------------------- - --- Note: This code is derived from the ADAR.CSH public domain Ada 83 --- versions of the Appendix C string handling packages (code extracted --- from Ada.Strings.Fixed). A significant change is that we optimize the --- case of identity mappings for Count and Index, and also Index_Non_Blank --- is specialized (rather than using the general Index routine). - -with Ada.Strings.Maps; use Ada.Strings.Maps; - -package body Ada.Strings.Search is - - ----------------------- - -- Local Subprograms -- - ----------------------- - - function Belongs - (Element : Character; - Set : Maps.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 : Character; - Set : Maps.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 : String; - Pattern : String; - Mapping : Maps.Character_Mapping := Maps.Identity) return Natural - is - N : Natural; - J : Natural; - - Mapped_Source : String (Source'Range); - - begin - for J in Source'Range loop - Mapped_Source (J) := Value (Mapping, Source (J)); - end loop; - - if Pattern = "" then - raise Pattern_Error; - end if; - - N := 0; - J := Source'First; - - while J <= Source'Last - (Pattern'Length - 1) loop - if Mapped_Source (J .. J + (Pattern'Length - 1)) = Pattern then - N := N + 1; - J := J + Pattern'Length; - else - J := J + 1; - end if; - end loop; - - return N; - end Count; - - function Count - (Source : String; - Pattern : String; - Mapping : Maps.Character_Mapping_Function) return Natural - is - Mapped_Source : String (Source'Range); - N : Natural; - J : Natural; - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - -- We make sure Access_Check is unsuppressed so that the Mapping.all - -- call will generate a friendly Constraint_Error if the value for - -- Mapping is uninitialized (and hence null). - - declare - pragma Unsuppress (Access_Check); - - begin - for J in Source'Range loop - Mapped_Source (J) := Mapping.all (Source (J)); - end loop; - end; - - N := 0; - J := Source'First; - - while J <= Source'Last - (Pattern'Length - 1) loop - if Mapped_Source (J .. J + (Pattern'Length - 1)) = Pattern then - N := N + 1; - J := J + Pattern'Length; - else - J := J + 1; - end if; - end loop; - - return N; - end Count; - - function Count - (Source : String; - Set : Maps.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 : String; - Set : Maps.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 1st 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 := Source'First; - Last := 0; - end Find_Token; - - ----------- - -- Index -- - ----------- - - function Index - (Source : String; - Pattern : String; - Going : Direction := Forward; - Mapping : Maps.Character_Mapping := Maps.Identity) return Natural - is - Cur_Index : Natural; - Mapped_Source : String (Source'Range); - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - for J in Source'Range loop - Mapped_Source (J) := Value (Mapping, Source (J)); - end loop; - - -- Forwards case - - if Going = Forward then - for J in 1 .. Source'Length - Pattern'Length + 1 loop - Cur_Index := Source'First + J - 1; - - if Pattern = Mapped_Source - (Cur_Index .. Cur_Index + Pattern'Length - 1) - then - return Cur_Index; - end if; - end loop; - - -- Backwards case - - else - for J in reverse 1 .. Source'Length - Pattern'Length + 1 loop - Cur_Index := Source'First + J - 1; - - if Pattern = Mapped_Source - (Cur_Index .. Cur_Index + Pattern'Length - 1) - then - return Cur_Index; - end if; - 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 : String; - Pattern : String; - Going : Direction := Forward; - Mapping : Maps.Character_Mapping_Function) return Natural - is - Mapped_Source : String (Source'Range); - Cur_Index : Natural; - - begin - if Pattern = "" then - raise Pattern_Error; - end if; - - -- We make sure Access_Check is unsuppressed so that the Mapping.all - -- call will generate a friendly Constraint_Error if the value for - -- Mapping is uninitialized (and hence null). - - declare - pragma Unsuppress (Access_Check); - begin - for J in Source'Range loop - Mapped_Source (J) := Mapping.all (Source (J)); - end loop; - end; - - -- Forwards case - - if Going = Forward then - for J in 1 .. Source'Length - Pattern'Length + 1 loop - Cur_Index := Source'First + J - 1; - - if Pattern = Mapped_Source - (Cur_Index .. Cur_Index + Pattern'Length - 1) - then - return Cur_Index; - end if; - end loop; - - -- Backwards case - - else - for J in reverse 1 .. Source'Length - Pattern'Length + 1 loop - Cur_Index := Source'First + J - 1; - - if Pattern = Mapped_Source - (Cur_Index .. Cur_Index + Pattern'Length - 1) - then - return Cur_Index; - end if; - end loop; - end if; - - return 0; - end Index; - - function Index - (Source : String; - Set : Maps.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 : String; - Pattern : String; - From : Positive; - Going : Direction := Forward; - Mapping : Maps.Character_Mapping := 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 : String; - Pattern : String; - From : Positive; - Going : Direction := Forward; - Mapping : Maps.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 : String; - Set : Maps.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 : String; - Going : Direction := Forward) return Natural - is - begin - if Going = Forward then - for J in Source'Range loop - if Source (J) /= ' ' then - return J; - end if; - end loop; - - else -- Going = Backward - for J in reverse Source'Range loop - if Source (J) /= ' ' 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 : 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.Search; |