Generate mathematical symbol XCompose mappings

genXCompose.py

#!/usr/bin/env python3

import unicodedata
import sys

#
# Helper script to generate XCompose files
#
# Usage:
#
#   ./gen_x_compose.py >Compose
#
# Output in file 'Compose' then has to be manually adjusted
#
# How to use XCompose instructions on askubuntu.com:
# https://askubuntu.com/a/877344/99330
#
# adapted from https://github.com/rybak/scripts/blob/master/extra/gen_x_compose.py 
# and made to work with arbitrary unicode ranges and prefixes

def debug(x):
    print(x, file=sys.stderr)

def print_alphabet(starters, latin_start, unicode_start, size):
    for i in range(0, size):
        latin_letter = chr(latin_start + i)
        unicode_letter = chr(unicode_start + i)
        prefix = ' '.join([f'<{s}>' for s in starters])

        try:
            comment = unicodedata.name(unicode_letter)
            print("<Multi_key> " + prefix + " <{}> : \"{}\"    U{:04X}    # {}".format(
                latin_letter,
                unicode_letter,
                ord(unicode_letter),
                comment
                ))
        except:
            # undefined Unicode code point
            debug("Skipping...")
            pass


print('# MATHEMATICAL BOLD')
BOLD_A = ord('𝐀')
BOLD_Z = ord('𝐙')
print_alphabet(['m', 'b'], ord('A'), BOLD_A, BOLD_Z - BOLD_A + 1)

BOLD_a = ord('𝐚')
BOLD_z = ord('𝐳')
print_alphabet(['m', 'b'], ord('a'), BOLD_a, BOLD_z - BOLD_a + 1)

print('# MATHEMATICAL ITALIC')
ITALIC_A = ord('𝐴')
ITALIC_Z = ord('𝑍')
print_alphabet(['m', 'i'], ord('A'), ITALIC_A, ITALIC_Z - ITALIC_A + 1)

ITALIC_a = ord('𝑎')
ITALIC_z = ord('𝑧')
print_alphabet(['m', 'i'], ord('a'), ITALIC_a, ITALIC_z - ITALIC_a + 1)

print('# MATHEMATICAL BOLD ITALIC')
ITALIC_B_A = ord('𝑨')
ITALIC_B_Z = ord('𝒁')
print_alphabet(['m', 'I'], ord('A'), ITALIC_B_A, ITALIC_B_Z - ITALIC_B_A + 1)

ITALIC_B_a = ord('𝒂')
ITALIC_B_z = ord('𝒛')
print_alphabet(['m', 'I'], ord('a'), ITALIC_B_a, ITALIC_B_z - ITALIC_B_a + 1)

print('# MATHEMATICAL SCRIPT')
SCRIPT_A = ord('𝒜')
SCRIPT_Z = ord('𝒵')
print_alphabet(['m', 's'], ord('A'), SCRIPT_A, SCRIPT_Z - SCRIPT_A + 1)

SCRIPT_a = ord('𝒶')
SCRIPT_z = ord('𝓏')
print_alphabet(['m', 's'], ord('a'), SCRIPT_a, SCRIPT_z - SCRIPT_a + 1)

print('# MATHEMATICAL BOLD SCRIPT')
SCRIPT_B_A = ord('𝓐')
SCRIPT_B_Z = ord('𝓩')
print_alphabet(['m', 'S'], ord('A'), SCRIPT_B_A, SCRIPT_B_Z - SCRIPT_B_A + 1)

SCRIPT_B_a = ord('𝓪')
SCRIPT_B_z = ord('𝔃')
print_alphabet(['m', 'S'], ord('a'), SCRIPT_B_a, SCRIPT_B_z - SCRIPT_B_a + 1)

print('# MATHEMATICAL FRACTUR')
FRACTUR_A = ord('𝔄')
FRACTUR_Z = ord('𝔜') # not actually Z, since Z is in a different symbols block
print_alphabet(['m', 'f'], ord('A'), FRACTUR_A, FRACTUR_Z - FRACTUR_A + 1)

FRACTUR_a = ord('𝒶')
FRACTUR_z = ord('𝓏')
print_alphabet(['m', 'f'], ord('a'), FRACTUR_a, FRACTUR_z - FRACTUR_a + 1)

print('# MATHEMATICAL DOUBLE-STRUCK')
DOUBLE_A = ord('𝔸')
DOUBLE_Z = ord('𝕐') # not actually Z, since Z is in a different symbols block
print_alphabet(['m', 'd'], ord('A'), DOUBLE_A, DOUBLE_Z - DOUBLE_A + 1)

DOUBLE_a = ord('𝕒')
DOUBLE_z = ord('𝕫')
print_alphabet(['m', 'd'], ord('a'), DOUBLE_a, DOUBLE_z - DOUBLE_a + 1)

print('# MATHEMATICAL BOLD FRACTUR')
FRACTUR_B_A = ord('𝕬')
FRACTUR_B_Z = ord('𝖅')
print_alphabet(['m', 'F'], ord('A'), FRACTUR_B_A, FRACTUR_B_Z - FRACTUR_B_A + 1)

FRACTUR_B_a = ord('𝖆')
FRACTUR_B_z = ord('𝖟')
print_alphabet(['m', 'F'], ord('a'), FRACTUR_B_a, FRACTUR_B_z - FRACTUR_B_a + 1)

print('# MATHEMATICAL LETTER-LIKE SYMBOLS')
# plank's constant, or italic h
print_alphabet(['m', 'i'], ord('h'), ord('ℎ'), 1)
# script
print_alphabet(['m', 's'], ord('B'), ord('ℬ'), 1)
print_alphabet(['m', 's'], ord('E'), ord('ℰ'), 1)
print_alphabet(['m', 's'], ord('F'), ord('ℱ'), 1)
print_alphabet(['m', 's'], ord('H'), ord('ℋ'), 1)
print_alphabet(['m', 's'], ord('I'), ord('ℐ'), 1)
print_alphabet(['m', 's'], ord('L'), ord('ℒ'), 1)
print_alphabet(['m', 's'], ord('M'), ord('ℳ'), 1)
print_alphabet(['m', 's'], ord('R'), ord('ℛ'), 1)
# script lower
print_alphabet(['m', 's'], ord('e'), ord('ℯ'), 1)
print_alphabet(['m', 's'], ord('g'), ord('ℊ'), 1)
print_alphabet(['m', 's'], ord('o'), ord('ℴ'), 1)
# fractur
print_alphabet(['m', 'f'], ord('C'), ord('ℭ'), 1)
print_alphabet(['m', 'f'], ord('H'), ord('ℌ'), 1)
print_alphabet(['m', 'f'], ord('I'), ord('ℑ'), 1)
print_alphabet(['m', 'f'], ord('R'), ord('ℜ'), 1)
print_alphabet(['m', 'f'], ord('Z'), ord('ℨ'), 1)
# double-struck
print_alphabet(['m', 'd'], ord('C'), ord('ℂ'), 1)
print_alphabet(['m', 'd'], ord('H'), ord('ℍ'), 1)
print_alphabet(['m', 'd'], ord('N'), ord('ℕ'), 1)
print_alphabet(['m', 'd'], ord('P'), ord('ℙ'), 1)
print_alphabet(['m', 'd'], ord('Q'), ord('ℚ'), 1)
print_alphabet(['m', 'd'], ord('R'), ord('ℝ'), 1)
print_alphabet(['m', 'd'], ord('Z'), ord('ℤ'), 1)