| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- S Y S T E M . I M G _ C H A R -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2013, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| package body System.Img_Char is |
| |
| --------------------- |
| -- Image_Character -- |
| --------------------- |
| |
| procedure Image_Character |
| (V : Character; |
| S : in out String; |
| P : out Natural) |
| is |
| pragma Assert (S'First = 1); |
| |
| subtype Cname is String (1 .. 3); |
| |
| subtype C0_Range is Character |
| range Character'Val (16#00#) .. Character'Val (16#1F#); |
| |
| C0 : constant array (C0_Range) of Cname := |
| (Character'Val (16#00#) => "NUL", |
| Character'Val (16#01#) => "SOH", |
| Character'Val (16#02#) => "STX", |
| Character'Val (16#03#) => "ETX", |
| Character'Val (16#04#) => "EOT", |
| Character'Val (16#05#) => "ENQ", |
| Character'Val (16#06#) => "ACK", |
| Character'Val (16#07#) => "BEL", |
| Character'Val (16#08#) => "BS ", |
| Character'Val (16#09#) => "HT ", |
| Character'Val (16#0A#) => "LF ", |
| Character'Val (16#0B#) => "VT ", |
| Character'Val (16#0C#) => "FF ", |
| Character'Val (16#0D#) => "CR ", |
| Character'Val (16#0E#) => "SO ", |
| Character'Val (16#0F#) => "SI ", |
| Character'Val (16#10#) => "DLE", |
| Character'Val (16#11#) => "DC1", |
| Character'Val (16#12#) => "DC2", |
| Character'Val (16#13#) => "DC3", |
| Character'Val (16#14#) => "DC4", |
| Character'Val (16#15#) => "NAK", |
| Character'Val (16#16#) => "SYN", |
| Character'Val (16#17#) => "ETB", |
| Character'Val (16#18#) => "CAN", |
| Character'Val (16#19#) => "EM ", |
| Character'Val (16#1A#) => "SUB", |
| Character'Val (16#1B#) => "ESC", |
| Character'Val (16#1C#) => "FS ", |
| Character'Val (16#1D#) => "GS ", |
| Character'Val (16#1E#) => "RS ", |
| Character'Val (16#1F#) => "US "); |
| |
| subtype C1_Range is Character |
| range Character'Val (16#7F#) .. Character'Val (16#9F#); |
| |
| C1 : constant array (C1_Range) of Cname := |
| (Character'Val (16#7F#) => "DEL", |
| Character'Val (16#80#) => "res", |
| Character'Val (16#81#) => "res", |
| Character'Val (16#82#) => "BPH", |
| Character'Val (16#83#) => "NBH", |
| Character'Val (16#84#) => "res", |
| Character'Val (16#85#) => "NEL", |
| Character'Val (16#86#) => "SSA", |
| Character'Val (16#87#) => "ESA", |
| Character'Val (16#88#) => "HTS", |
| Character'Val (16#89#) => "HTJ", |
| Character'Val (16#8A#) => "VTS", |
| Character'Val (16#8B#) => "PLD", |
| Character'Val (16#8C#) => "PLU", |
| Character'Val (16#8D#) => "RI ", |
| Character'Val (16#8E#) => "SS2", |
| Character'Val (16#8F#) => "SS3", |
| Character'Val (16#90#) => "DCS", |
| Character'Val (16#91#) => "PU1", |
| Character'Val (16#92#) => "PU2", |
| Character'Val (16#93#) => "STS", |
| Character'Val (16#94#) => "CCH", |
| Character'Val (16#95#) => "MW ", |
| Character'Val (16#96#) => "SPA", |
| Character'Val (16#97#) => "EPA", |
| Character'Val (16#98#) => "SOS", |
| Character'Val (16#99#) => "res", |
| Character'Val (16#9A#) => "SCI", |
| Character'Val (16#9B#) => "CSI", |
| Character'Val (16#9C#) => "ST ", |
| Character'Val (16#9D#) => "OSC", |
| Character'Val (16#9E#) => "PM ", |
| Character'Val (16#9F#) => "APC"); |
| |
| begin |
| -- Control characters are represented by their names (RM 3.5(32)) |
| |
| if V in C0_Range then |
| S (1 .. 3) := C0 (V); |
| P := (if S (3) = ' ' then 2 else 3); |
| |
| elsif V in C1_Range then |
| S (1 .. 3) := C1 (V); |
| |
| if S (1) /= 'r' then |
| P := (if S (3) = ' ' then 2 else 3); |
| |
| -- Special case, res means RESERVED_nnn where nnn is the three digit |
| -- decimal value corresponding to the code position (more efficient |
| -- to compute than to store). |
| |
| else |
| declare |
| VP : constant Natural := Character'Pos (V); |
| begin |
| S (1 .. 9) := "RESERVED_"; |
| S (10) := Character'Val (48 + VP / 100); |
| S (11) := Character'Val (48 + (VP / 10) mod 10); |
| S (12) := Character'Val (48 + VP mod 10); |
| P := 12; |
| end; |
| end if; |
| |
| -- Normal characters yield the character enclosed in quotes (RM 3.5(32)) |
| |
| else |
| S (1) := '''; |
| S (2) := V; |
| S (3) := '''; |
| P := 3; |
| end if; |
| end Image_Character; |
| |
| ------------------------ |
| -- Image_Character_05 -- |
| ------------------------ |
| |
| procedure Image_Character_05 |
| (V : Character; |
| S : in out String; |
| P : out Natural) |
| is |
| pragma Assert (S'First = 1); |
| begin |
| if V = Character'Val (16#00AD#) then |
| P := 11; |
| S (1 .. P) := "SOFT_HYPHEN"; |
| else |
| Image_Character (V, S, P); |
| end if; |
| end Image_Character_05; |
| |
| end System.Img_Char; |
