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diff --git a/gcc/ada/a-wichun.ads b/gcc/ada/a-wichun.ads new file mode 100755 index 00000000000..7bfe04530f2 --- /dev/null +++ b/gcc/ada/a-wichun.ads @@ -0,0 +1,190 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . W I D E _ C H A R A C T E R S . U N I C O D E -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 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. -- +-- -- +------------------------------------------------------------------------------ + +-- Unicode categorization routines for Wide_Character. Note that this +-- package is strictly speaking Ada 2005 (since it is a child of an +-- Ada 2005 unit), but we make it available in Ada 95 mode, since it +-- only deals with wide characters. + +with GNAT.UTF_32; + +package Ada.Wide_Characters.Unicode is + + -- The following type defines the categories from the unicode definitions. + -- The one addition we make is Fe, which represents the characters FFFE + -- and FFFF in any of the planes. + + type Category is new GNAT.UTF_32.Category; + -- Cc Other, Control + -- Cf Other, Format + -- Cn Other, Not Assigned + -- Co Other, Private Use + -- Cs Other, Surrogate + -- Ll Letter, Lowercase + -- Lm Letter, Modifier + -- Lo Letter, Other + -- Lt Letter, Titlecase + -- Lu Letter, Uppercase + -- Mc Mark, Spacing Combining + -- Me Mark, Enclosing + -- Mn Mark, Nonspacing + -- Nd Number, Decimal Digit + -- Nl Number, Letter + -- No Number, Other + -- Pc Punctuation, Connector + -- Pd Punctuation, Dash + -- Pe Punctuation, Close + -- Pf Punctuation, Final quote + -- Pi Punctuation, Initial quote + -- Po Punctuation, Other + -- Ps Punctuation, Open + -- Sc Symbol, Currency + -- Sk Symbol, Modifier + -- Sm Symbol, Math + -- So Symbol, Other + -- Zl Separator, Line + -- Zp Separator, Paragraph + -- Zs Separator, Space + -- Fe relative position FFFE/FFFF in plane + + function Get_Category (U : Wide_Character) return Category; + pragma Inline (Get_Category); + -- Given a Wide_Character, returns corresponding Category, or Cn if the + -- code does not have an assigned unicode category. + + -- The following functions perform category tests corresponding to lexical + -- classes defined in the Ada standard. There are two interfaces for each + -- function. The second takes a Category (e.g. returned by Get_Category). + -- The first takes a Wide_Character. The form taking the Wide_Character is + -- typically more efficient than calling Get_Category, but if several + -- different tests are to be performed on the same code, it is more + -- efficient to use Get_Category to get the category, then test the + -- resulting category. + + function Is_Letter (U : Wide_Character) return Boolean; + function Is_Letter (C : Category) return Boolean; + pragma Inline (Is_Letter); + -- Returns true iff U is a letter that can be used to start an identifier, + -- or if C is one of the corresponding categories, which are the following: + -- Letter, Uppercase (Lu) + -- Letter, Lowercase (Ll) + -- Letter, Titlecase (Lt) + -- Letter, Modifier (Lm) + -- Letter, Other (Lo) + -- Number, Letter (Nl) + + function Is_Digit (U : Wide_Character) return Boolean; + function Is_Digit (C : Category) return Boolean; + pragma Inline (Is_Digit); + -- Returns true iff U is a digit that can be used to extend an identifer, + -- or if C is one of the corresponding categories, which are the following: + -- Number, Decimal_Digit (Nd) + + function Is_Line_Terminator (U : Wide_Character) return Boolean; + pragma Inline (Is_Line_Terminator); + -- Returns true iff U is an allowed line terminator for source programs, + -- if U is in the category Zp (Separator, Paragaph), or Zs (Separator, + -- Line), or if U is a conventional line terminator (CR, LF, VT, FF). + -- There is no category version for this function, since the set of + -- characters does not correspond to a set of Unicode categories. + + function Is_Mark (U : Wide_Character) return Boolean; + function Is_Mark (C : Category) return Boolean; + pragma Inline (Is_Mark); + -- Returns true iff U is a mark character which can be used to extend an + -- identifier, or if C is one of the corresponding categories, which are + -- the following: + -- Mark, Non-Spacing (Mn) + -- Mark, Spacing Combining (Mc) + + function Is_Other (U : Wide_Character) return Boolean; + function Is_Other (C : Category) return Boolean; + pragma Inline (Is_Other); + -- Returns true iff U is an other format character, which means that it + -- can be used to extend an identifier, but is ignored for the purposes of + -- matching of identiers, or if C is one of the corresponding categories, + -- which are the following: + -- Other, Format (Cf) + + function Is_Punctuation (U : Wide_Character) return Boolean; + function Is_Punctuation (C : Category) return Boolean; + pragma Inline (Is_Punctuation); + -- Returns true iff U is a punctuation character that can be used to + -- separate pices of an identifier, or if C is one of the corresponding + -- categories, which are the following: + -- Punctuation, Connector (Pc) + + function Is_Space (U : Wide_Character) return Boolean; + function Is_Space (C : Category) return Boolean; + pragma Inline (Is_Space); + -- Returns true iff U is considered a space to be ignored, or if C is one + -- of the corresponding categories, which are the following: + -- Separator, Space (Zs) + + function Is_Non_Graphic (U : Wide_Character) return Boolean; + function Is_Non_Graphic (C : Category) return Boolean; + pragma Inline (Is_Non_Graphic); + -- Returns true iff U is considered to be a non-graphic character, or if C + -- is one of the corresponding categories, which are the following: + -- Other, Control (Cc) + -- Other, Private Use (Co) + -- Other, Surrogate (Cs) + -- Separator, Line (Zl) + -- Separator, Paragraph (Zp) + -- FFFE or FFFF positions in any plane (Fe) + -- + -- Note that the Ada category format effector is subsumed by the above + -- list of Unicode categories. + -- + -- Note that Other, Unassiged (Cn) is quite deliberately not included + -- in the list of categories above. This means that should any of these + -- code positions be defined in future with graphic characters they will + -- be allowed without a need to change implementations or the standard. + -- + -- Note that Other, Format (Cf) is also quite deliberately not included + -- in the list of categories above. This means that these characters can + -- be included in character and string literals. + + -- The following function is used to fold to upper case, as required by + -- the Ada 2005 standard rules for identifier case folding. Two + -- identifiers are equivalent if they are identical after folding all + -- letters to upper case using this routine. + + function To_Upper_Case (U : Wide_Character) return Wide_Character; + pragma Inline (To_Upper_Case); + -- If U represents a lower case letter, returns the corresponding upper + -- case letter, otherwise U is returned unchanged. The folding is locale + -- independent as defined by documents referenced in the note in section + -- 1 of ISO/IEC 10646:2003 + +end Ada.Wide_Characters.Unicode; |