87 lines
2.2 KiB
Python
Executable file
87 lines
2.2 KiB
Python
Executable file
#!/usr/bin/env python3
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import sys
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codes = []
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for line in open('data/unicode.txt').readlines(): # Original source: https://www.unicode.org/Public/14.0.0/ucd/UnicodeData.txt
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try:
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code = int(line.split(';')[0], 16)
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# Ensure the character is encodable (surrogates are not)
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chr(code).encode('utf8')
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if (code >= 128):
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codes.append(code)
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except:
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pass
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# We use the base36 encoded index as the compose sequence to minimize
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# the total number of keysyms required.
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def base36(n):
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chars = '0123456789abcdefghijklmnopqrstuvwxyz'
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s = ''
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s += chars[n // (len(chars)*len(chars)) % len(chars)]
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s += chars[n // len(chars) % len(chars)]
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s += chars[n % len(chars)]
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return s
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# Generate the compose file
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data = ''
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for n, code in enumerate(codes):
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data += '<Cancel> '
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data += ' '.join(f'<{c}>' for c in base36(n))
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data += f' : "{chr(code)}"\n'
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open('data/keyd.compose', 'w').write(data)
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# Generate the corresponding src/unicode.c
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# OPT: We could condense this and shave off lookup time by using an offset
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# table to capitalize on codepoint contiguity, but 35k is small enough to
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# warrant keeping the entire thing in memory.
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open('src/unicode.c', 'w').write(f'''
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/* GENERATED BY {sys.argv[0]}, DO NOT MODIFY BY HAND. */
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#include <stdint.h>
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#include <stdlib.h>
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#include "keys.h"
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uint32_t unicode_table[] = {{ {','.join(map(str, codes))} }};
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int unicode_lookup_index(uint32_t codepoint)
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{{
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size_t i = 0;
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for(i = 0; i < sizeof(unicode_table)/sizeof(unicode_table[0]); i++) {{
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if (unicode_table[i] == codepoint)
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return i;
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}}
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return -1;
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}}
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void unicode_get_sequence(int idx, uint8_t codes[4])
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{{
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uint8_t chars[] = {{
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KEYD_0, KEYD_1, KEYD_2, KEYD_3, KEYD_4, KEYD_5, KEYD_6, KEYD_7,
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KEYD_8, KEYD_9, KEYD_A, KEYD_B, KEYD_C, KEYD_D, KEYD_E, KEYD_F,
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KEYD_G, KEYD_H, KEYD_I, KEYD_J, KEYD_K, KEYD_L, KEYD_M, KEYD_N,
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KEYD_O, KEYD_P, KEYD_Q, KEYD_R, KEYD_S, KEYD_T, KEYD_U, KEYD_V,
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KEYD_W, KEYD_X, KEYD_Y, KEYD_Z
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}};
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codes[0] = KEYD_CANCEL;
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codes[1] = chars[idx / (36 * 36) % 36];
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codes[2] = chars[idx / 36 % 36];
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codes[3] = chars[idx % 36];
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}}
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'''
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.replace('\n\t', '\n')
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.lstrip()
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)
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