1 /* ascii.c - display ascii table
2 *
3 * Copyright 2017 Rob Landley <rob@landley.net>
4 *
5 * Technically 7-bit ASCII is ANSI X3.4-1986, a standard available as
6 * INCITS 4-1986[R2012] on ansi.org, but they charge for it.
7 *
8 * unicode.c - convert between Unicode and UTF-8
9 *
10 * Copyright 2020 The Android Open Source Project.
11 *
12 * Loosely based on the Plan9/Inferno unicode(1).
13
14 USE_ASCII(NEWTOY(ascii, 0, TOYFLAG_USR|TOYFLAG_BIN))
15
16 config ASCII
17 bool "ascii"
18 default y
19 help
20 usage: ascii
21
22 Display ascii character set.
23 */
24
25 #include "toys.h"
26
ascii_main(void)27 void ascii_main(void)
28 {
29 char *low="NULSOHSTXETXEOTENQACKBELBS HT LF VT FF CR SO SI DLEDC1DC2DC3DC4"
30 "NAKSYNETBCANEM SUBESCFS GS RS US ";
31 int x, y;
32
33 for (x = 0; x<8; x++) printf("Dec Hex%*c", 2+2*(x<2)+(x>4), ' ');
34 xputc('\n');
35 for (y=0; y<=15; y++) {
36 for (x=0; x<8; x++) {
37 int i = x*16+y;
38
39 if (i>95 && i<100) putchar(' ');
40 printf("% 3d %02X ", i, i);
41 if (i<32 || i==127) printf("%.3s ", (i==127) ? "DEL" : low+3*i);
42 else printf("%c ", i);
43 }
44 xputc('\n');
45 }
46 }
47