diff options
Diffstat (limited to 'gcc/ada/widechar.ads')
| -rw-r--r-- | gcc/ada/widechar.ads | 94 |
1 files changed, 88 insertions, 6 deletions
diff --git a/gcc/ada/widechar.ads b/gcc/ada/widechar.ads index 5126d4c..f70fb72 100644 --- a/gcc/ada/widechar.ads +++ b/gcc/ada/widechar.ads @@ -6,7 +6,7 @@ -- -- -- S p e c -- -- -- --- Copyright (C) 1992-1998 Free Software Foundation, Inc. -- +-- 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- -- @@ -31,7 +31,10 @@ -- -- ------------------------------------------------------------------------------ --- Subprograms for manipulation of wide character sequences +-- Subprograms for manipulation of wide character sequences. Note that in +-- this package, wide character and wide wide character are not distinguished +-- since this package is basically concerned with syntactic notions, and it +-- deals with Char_Code values, rather than values of actual Ada types. with Types; use Types; @@ -40,7 +43,8 @@ package Widechar is function Length_Wide return Nat; -- Returns the maximum length in characters for the escape sequence that -- is used to encode wide character literals outside the ASCII range. Used - -- only in the implementation of the attribute Width for Wide_Character. + -- only in the implementation of the attribute Width for Wide_Character + -- and Wide_Wide_Character. procedure Scan_Wide (S : Source_Buffer_Ptr; @@ -76,10 +80,88 @@ package Widechar is -- checking is done, since this is only used on escape sequences generated -- by Set_Wide, which are known to be correct. + procedure Skip_Wide (S : Source_Buffer_Ptr; P : in out Source_Ptr); + -- Similar to the above procedure, but operates on a source buffer + -- instead of a string, with P being a Source_Ptr referencing the + -- contents of the source buffer. + function Is_Start_Of_Wide_Char - (S : Source_Buffer_Ptr; - P : Source_Ptr) - return Boolean; + (S : Source_Buffer_Ptr; + P : Source_Ptr) return Boolean; -- Determines if S (P) is the start of a wide character sequence + function Is_UTF_32_Letter (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Letter); + -- Returns true iff U is a letter that can be used to start an identifier. + -- This means that it is in one of the following categories: + -- Letter, Uppercase (Lu) + -- Letter, Lowercase (Ll) + -- Letter, Titlecase (Lt) + -- Letter, Modifier (Lm) + -- Letter, Other (Lo) + -- Number, Letter (Nl) + + function Is_UTF_32_Digit (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Digit); + -- Returns true iff U is a digit that can be used to extend an identifer, + -- which means it is in one of the following categories: + -- Number, Decimal_Digit (Nd) + + function Is_UTF_32_Line_Terminator (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Line_Terminator); + -- Returns true iff U is an allowed line terminator for source programs, + -- which means it is in one of the following categories: + -- Separator, Line (Zl) + -- Separator, Paragraph (Zp) + -- or that it is a conventional line terminator (CR, LF, VT, FF) + + function Is_UTF_32_Mark (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Mark); + -- Returns true iff U is a mark character which can be used to extend + -- an identifier. This means it is in one of the following categories: + -- Mark, Non-Spacing (Mn) + -- Mark, Spacing Combining (Mc) + + function Is_UTF_32_Other (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_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. This means that it is in one of the following + -- categories: + -- Other, Format (Cf) + + function Is_UTF_32_Punctuation (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Punctuation); + -- Returns true iff U is a punctuation character that can be used to + -- separate pices of an identifier. This means that it is in one of the + -- following categories: + -- Punctuation, Connector (Pc) + + function Is_UTF_32_Space (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Space); + -- Returns true iff U is considered a space to be ignored, which means + -- that it is in one of the following categories: + -- Separator, Space (Zs) + + function Is_UTF_32_Non_Graphic (U : Char_Code) return Boolean; + pragma Inline (Is_UTF_32_Non_Graphic); + -- Returns true iff U is considered to be a non-graphic character, + -- which means that it is in one of the following categories: + -- Other, Control (Cc) + -- Other, Private Use (Co) + -- Other, Surrogate (Cs) + -- Other, Format (Cf) + -- Separator, Line (Zl) + -- Separator, Paragraph (Zp) + -- + -- Note that the Ada category format effector is subsumed by the above + -- list of Unicode categories. + + function UTF_32_To_Upper_Case (U : Char_Code) return Char_Code; + pragma Inline (UTF_32_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 Widechar; |