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Universe

Universe is a command-line program that allows you to print Unicode characters and their code point values in decimal and/or hexadecimal format. You can specify Unicode ranges or a string as input.

Build

... cmake ...

  • ./build_cmake.sh - build
  • ./clean_cmake.sh - tidy build && dirs

Deps

Test OS ubuntu 24.04

- libicu-dev | https://github.com/unicode-org/icu | https://icu.unicode.org/

Usage

./universe [OPTIONS] -r range1 range2 ... OR -ia input
  • -h, --help: Show help menu.
  • -r, --range: Treat input as a range of Unicode numbers.
  • -s, --symbol: Print symbol of each character.
  • -d, --dnum: Print decimal code point value of each character.
  • -x, --hnum: Print hexadecimal code point value of each character.
  • -n, --newline: Print each output in a new line.
  • -ia, --input-arg: Treat input as a string.
./universe -s -n -r "60-90"
< 
= 
> 
? 
@ 
A 
B 
C 
D 
E 
F 
G 
H 
I 
J 
K 
L 
M 
N 
O 
P 
Q 
R 
S 
T 
U 
V 
W 
X 
Y 
Z 

./universe -s -x -n -r "60-90"
0x3c < 
0x3d = 
0x3e > 
0x3f ? 
0x40 @ 
0x41 A 
0x42 B 
0x43 C 
0x44 D 
0x45 E 
0x46 F 
0x47 G 
0x48 H 
0x49 I 
0x4a J 
0x4b K 
0x4c L 
0x4d M 
0x4e N 
0x4f O 
0x50 P 
0x51 Q 
0x52 R 
0x53 S 
0x54 T 
0x55 U 
0x56 V 
0x57 W 
0x58 X 
0x59 Y 
0x5a Z 

./universe -s -x -d -n -r 60-90
60 0x3c < 
61 0x3d = 
62 0x3e > 
63 0x3f ? 
64 0x40 @ 
65 0x41 A 
66 0x42 B 
67 0x43 C 
68 0x44 D 
69 0x45 E 
70 0x46 F 
71 0x47 G 
72 0x48 H 
73 0x49 I 
74 0x4a J 
75 0x4b K 
76 0x4c L 
77 0x4d M 
78 0x4e N 
79 0x4f O 
80 0x50 P 
81 0x51 Q 
82 0x52 R 
83 0x53 S 
84 0x54 T 
85 0x55 U 
86 0x56 V 
87 0x57 W 
88 0x58 X 
89 0x59 Y 
90 0x5a Z 

./universe -s -x -d -n -r "0x41-0x5A"
65 0x41 A 
66 0x42 B 
67 0x43 C 
68 0x44 D 
69 0x45 E 
70 0x46 F 
71 0x47 G 
72 0x48 H 
73 0x49 I 
74 0x4a J 
75 0x4b K 
76 0x4c L 
77 0x4d M 
78 0x4e N 
79 0x4f O 
80 0x50 P 
81 0x51 Q 
82 0x52 R 
83 0x53 S 
84 0x54 T 
85 0x55 U 
86 0x56 V 
87 0x57 W 
88 0x58 X 
89 0x59 Y 
90 0x5a Z 

 ./universe -s -n -x -ia "foo bar barr fooo 1337"
0x66 f 
0x6f o 
0x6f o 
0x20   
0x62 b 
0x61 a 
0x72 r 
0x20   
0x62 b 
0x61 a 
0x72 r 
0x72 r 
0x20   
0x66 f 
0x6f o 
0x6f o 
0x6f o 
0x20   
0x31 1 
0x33 3 
0x33 3 
0x37 7 

./universe -s -x -ia "foo bar barr fooo 1337"
0x66 f 0x6f o 0x6f o 0x20   0x62 b 0x61 a 0x72 r 0x20   0x62 b 0x61 a 0x72 r 0x72 r 0x20   0x66 f 0x6f o 0x6f o 0x6f o 0x20   0x31 1 0x33 3 0x33 3 0x37 7

The ranges of Unicode numbers to print can be specified in the following formats:

  • Single number: e.g. 65 (0x41)
  • Range of numbers: e.g. 65-90 (0x41-0x5A)
  • Comma-separated list of numbers and/or ranges: e.g. 65,67,70-75 (0x41,0x43,0x46-0x4B)

Note: The hexadecimal values shown in parentheses are the code point values.

If -ia option is used, the input will be treated as a string instead of Unicode ranges.

Test

$ shunit2 unit_test/test.sh 
/usr/bin/shunit2: 8: ./unit_test/test.sh: .....: not found
test_print1
test_print2
test_print3
test_print4
test_print5
test_print6
test_print7
test_print8

Ran 8 tests.

OK

Todo

  • punycode
  • menu / arg handling
  • input format / reading ... e.g file .. json?
  • beauty code
  • sec?
  • improve shunit?