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authorArnaud Charlet <charlet@adacore.com>2005-02-09 11:14:42 +0000
committerArnaud Charlet <charlet@gcc.gnu.org>2005-02-09 12:14:42 +0100
commit4c2d6a700cb2b4928228a8ebc425750406f1a42a (patch)
treefc2c56125c477bf3312555b0de2bc5a1860ba895 /gcc/ada/a-stzsea.adb
parente99e6d711d080daa5c3d25b2dc184bbbdeaba47f (diff)
downloadgcc-4c2d6a700cb2b4928228a8ebc425750406f1a42a.tar.gz
a-rbtgso.adb, [...]: New files.
* a-rbtgso.adb, a-crbtgo.ads, a-crbtgo.adb, a-crbtgk.ads, a-crbtgk.adb, a-crbltr.ads, a-coprnu.ads, a-coprnu.adb, a-coorse.ads, a-coorse.adb, a-convec.ads, a-convec.adb, a-contai.ads, a-coinve.ads, a-coinve.adb, a-cohata.ads, a-cohama.ads, a-cohama.adb, a-ciorse.ads, a-ciorse.adb, a-cihama.ads, a-cihama.adb, a-cidlli.ads, a-cidlli.adb, a-chtgop.ads, a-chtgop.adb, a-cgcaso.ads, a-cgcaso.adb, a-cgarso.ads, a-cgarso.adb, a-cdlili.ads, a-cdlili.adb, a-cgaaso.adb, a-coormu.adb, a-ciormu.adb, a-cihase.adb, a-cihase.ads, a-cohase.adb, a-cohase.ads, a-ciorma.ads, a-coorma.ads, a-swunha.ads, a-stunha.ads, a-ciormu.ads, a-coormu.ads, a-rbtgso.ads, a-swunha.adb, a-stunha.adb, a-cgaaso.ads, a-ciorma.adb, a-coorma.adb, a-secain.adb, a-secain.ads, a-slcain.ads, a-slcain.adb, a-shcain.ads, a-shcain.adb, a-chtgke.ads, a-chtgke.adb, a-stwiha.ads, a-stwiha.adb, a-strhas.ads, a-strhas.adb, a-chzla1.ads, a-chzla9.ads, a-lfztio.ads, a-liztio.ads, a-llfzti.ads, a-llizti.ads, a-sfztio.ads, a-siztio.ads, a-ssizti.ads, a-stzbou.adb, a-stzbou.ads, a-stzfix.adb, a-stzfix.ads, a-stzhas.adb, a-stzhas.ads, a-stzmap.adb, a-stzmap.ads, a-stzsea.adb, a-stzsea.ads, a-stzsup.adb, a-stzsup.ads, a-stzunb.adb, a-stzunb.ads, a-swunau.adb, a-swunau.ads, a-szmzco.ads, a-szunau.adb, a-szunau.ads, a-szunha.adb, a-szunha.ads, a-szuzti.adb, a-szuzti.ads, a-tiunio.ads, a-wwunio.ads, a-ztcoau.adb, a-ztcoau.ads, a-ztcoio.adb, a-ztcoio.ads, a-ztcstr.adb, a-ztcstr.ads, a-ztdeau.adb, a-ztdeau.ads, a-ztdeio.adb, a-ztdeio.ads, a-ztedit.adb, a-ztedit.ads, a-ztenau.adb, a-ztenau.ads, a-ztenio.adb, a-ztenio.ads, a-ztexio.adb, a-ztexio.ads, a-ztfiio.adb, a-ztfiio.ads, a-ztflau.adb, a-ztflau.ads, a-ztflio.adb, a-ztflio.ads, a-ztgeau.adb, a-ztgeau.ads, a-ztinau.adb, a-ztinau.ads, a-ztinio.adb, a-ztinio.ads, a-ztmoau.adb, a-ztmoau.ads, a-ztmoio.adb, a-ztmoio.ads, a-zttest.adb, a-zttest.ads, a-zzunio.ads: New files. Part of new Ada 2005 library. From-SVN: r94764
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+------------------------------------------------------------------------------
+-- --
+-- GNAT RUNTIME COMPONENTS --
+-- --
+-- A D A . S T R I N G S . W I D E _ W I D E _ S E A R C H --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2005 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 2, 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. See the GNU General Public License --
+-- for more details. You should have received a copy of the GNU General --
+-- Public License distributed with GNAT; see file COPYING. If not, write --
+-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
+-- MA 02111-1307, USA. --
+-- --
+-- As a special exception, if other files instantiate generics from this --
+-- unit, or you link this unit with other files to produce an executable, --
+-- this unit does not by itself cause the resulting executable to be --
+-- covered by the GNU General Public License. This exception does not --
+-- however invalidate any other reasons why the executable file might be --
+-- covered by the GNU Public License. --
+-- --
+-- 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_Wide_Maps; use Ada.Strings.Wide_Wide_Maps;
+
+package body Ada.Strings.Wide_Wide_Search is
+
+ -----------------------
+ -- Local Subprograms --
+ -----------------------
+
+ function Belongs
+ (Element : Wide_Wide_Character;
+ Set : Wide_Wide_Maps.Wide_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_Wide_Character;
+ Set : Wide_Wide_Maps.Wide_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_Wide_String;
+ Pattern : Wide_Wide_String;
+ Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
+ Wide_Wide_Maps.Identity)
+ return Natural
+ is
+ N : Natural;
+ J : Natural;
+
+ begin
+ if Pattern = "" then
+ raise Pattern_Error;
+ end if;
+
+ -- Handle the case of non-identity mappings by creating a mapped
+ -- string and making a recursive call using the identity mapping
+ -- on this mapped string.
+
+ if Mapping /= Wide_Wide_Maps.Identity then
+ declare
+ Mapped_Source : Wide_Wide_String (Source'Range);
+
+ begin
+ for J in Source'Range loop
+ Mapped_Source (J) := Value (Mapping, Source (J));
+ end loop;
+
+ return Count (Mapped_Source, Pattern);
+ end;
+ end if;
+
+ N := 0;
+ J := Source'First;
+
+ while J <= Source'Last - (Pattern'Length - 1) loop
+ if 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 : Wide_Wide_String;
+ Pattern : Wide_Wide_String;
+ Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
+ return Natural
+ is
+ Mapped_Source : Wide_Wide_String (Source'Range);
+
+ begin
+ for J in Source'Range loop
+ Mapped_Source (J) := Mapping (Source (J));
+ end loop;
+
+ return Count (Mapped_Source, Pattern);
+ end Count;
+
+ function Count
+ (Source : Wide_Wide_String;
+ Set : Wide_Wide_Maps.Wide_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_Wide_String;
+ Set : Wide_Wide_Maps.Wide_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 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 : Wide_Wide_String;
+ Pattern : Wide_Wide_String;
+ Going : Direction := Forward;
+ Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
+ Wide_Wide_Maps.Identity)
+ return Natural
+ is
+ begin
+ if Pattern = "" then
+ raise Pattern_Error;
+ end if;
+
+ -- Handle the case of non-identity mappings by creating a mapped
+ -- string and making a recursive call using the identity mapping
+ -- on this mapped string.
+
+ if Mapping /= Identity then
+ declare
+ Mapped_Source : Wide_Wide_String (Source'Range);
+
+ begin
+ for J in Source'Range loop
+ Mapped_Source (J) := Value (Mapping, Source (J));
+ end loop;
+
+ return Index (Mapped_Source, Pattern, Going);
+ end;
+ end if;
+
+ if Going = Forward then
+ for J in Source'First .. Source'Last - Pattern'Length + 1 loop
+ if Pattern = Source (J .. J + Pattern'Length - 1) then
+ return J;
+ end if;
+ end loop;
+
+ else -- Going = Backward
+ for J in reverse Source'First .. Source'Last - Pattern'Length + 1 loop
+ if Pattern = Source (J .. J + Pattern'Length - 1) then
+ return J;
+ 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 : Wide_Wide_String;
+ Pattern : Wide_Wide_String;
+ Going : Direction := Forward;
+ Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping_Function)
+ return Natural
+ is
+ Mapped_Source : Wide_Wide_String (Source'Range);
+
+ begin
+ for J in Source'Range loop
+ Mapped_Source (J) := Mapping (Source (J));
+ end loop;
+
+ return Index (Mapped_Source, Pattern, Going);
+ end Index;
+
+ function Index
+ (Source : Wide_Wide_String;
+ Set : Wide_Wide_Maps.Wide_Wide_Character_Set;
+ Test : Membership := Inside;
+ Going : Direction := Forward) return Natural
+ is
+ begin
+ if Going = Forward then
+ for J in Source'Range loop
+ if Belongs (Source (J), Set, Test) then
+ return J;
+ end if;
+ end loop;
+
+ else -- Going = Backward
+ 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_Wide_String;
+ Pattern : Wide_Wide_String;
+ From : Positive;
+ Going : Direction := Forward;
+ Mapping : Wide_Wide_Maps.Wide_Wide_Character_Mapping :=
+ Wide_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_Wide_String;
+ Pattern : Wide_Wide_String;
+ From : Positive;
+ Going : Direction := Forward;
+ Mapping : Wide_Wide_Maps.Wide_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_Wide_String;
+ Set : Wide_Wide_Maps.Wide_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_Wide_String;
+ Going : Direction := Forward) return Natural
+ is
+ begin
+ if Going = Forward then
+ for J in Source'Range loop
+ if Source (J) /= Wide_Wide_Space then
+ return J;
+ end if;
+ end loop;
+
+ else -- Going = Backward
+ for J in reverse Source'Range loop
+ if Source (J) /= Wide_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_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_Wide_Search;