summaryrefslogtreecommitdiffstats
path: root/keyboards/ergodox/ez/util/compile_keymap.py
blob: 7076a6ecb2e049ac5cdfe5bef326a540ffc6567c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Compiler for keymap.c files

This scrip will generate a keymap.c file from a simple
markdown file with a specific layout.

Usage:
    python compile_keymap.py INPUT_PATH [OUTPUT_PATH]
"""
from __future__ import division
from __future__ import print_function
from __future__ import absolute_import
from __future__ import unicode_literals

import os
import io
import re
import sys
import json
import unicodedata
import collections
import itertools as it

PY2 = sys.version_info.major == 2

if PY2:
    chr = unichr


KEYBOARD_LAYOUTS = {
    # These map positions in the parsed layout to
    # positions in the KEYMAP MATRIX
    'ergodox_ez': [
        [ 0,  1,  2,  3,  4,  5,  6],  [38, 39, 40, 41, 42, 43, 44],
        [ 7,  8,  9, 10, 11, 12, 13],  [45, 46, 47, 48, 49, 50, 51],
        [14, 15, 16, 17, 18, 19    ],  [    52, 53, 54, 55, 56, 57],
        [20, 21, 22, 23, 24, 25, 26],  [58, 59, 60, 61, 62, 63, 64],
        [27, 28, 29, 30, 31        ],  [        65, 66, 67, 68, 69],
        [                    32, 33],  [70, 71                    ],
        [                        34],  [72                        ],
        [                35, 36, 37],  [73, 74, 75                ],
    ]
}

ROW_INDENTS = {
    'ergodox_ez': [0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 5, 0, 6, 0, 4, 0]
}

BLANK_LAYOUTS = [
# Compact Layout
"""
.------------------------------------.------------------------------------.
|     |    |    |    |    |    |     |     |    |    |    |    |    |     |
!-----+----+----+----+----+----------!-----+----+----+----+----+----+-----!
|     |    |    |    |    |    |     |     |    |    |    |    |    |     |
!-----+----+----+----x----x----!     !     !----x----x----+----+----+-----!
|     |    |    |    |    |    |-----!-----!    |    |    |    |    |     |
!-----+----+----+----x----x----!     !     !----x----x----+----+----+-----!
|     |    |    |    |    |    |     |     |    |    |    |    |    |     |
'-----+----+----+----+----+----------'----------+----+----+----+----+-----'
 |    |    |    |    |    |                     !    |    |    |    |    |
 '------------------------'                     '------------------------'
                        .-----------. .-----------.
                        |     |     | !     |     |
                  .-----+-----+-----! !-----+-----+-----.
                  !     !     |     | !     |     !     !
                  !     !     !-----! !-----!     !     !
                  |     |     |     | !     |     |     |
                  '-----------------' '-----------------'
""",

# Wide Layout
"""
.---------------------------------------------. .---------------------------------------------.
|       |     |     |     |     |     |       | !       |     |     |     |     |     |       |
!-------+-----+-----+-----+-----+-------------! !-------+-----+-----+-----+-----+-----+-------!
|       |     |     |     |     |     |       | !       |     |     |     |     |     |       |
!-------+-----+-----+-----x-----x-----!       ! !       !-----x-----x-----+-----+-----+-------!
|       |     |     |     |     |     |-------! !-------!     |     |     |     |     |       |
!-------+-----+-----+-----x-----x-----!       ! !       !-----x-----x-----+-----+-----+-------!
|       |     |     |     |     |     |       | !       |     |     |     |     |     |       |
'-------+-----+-----+-----+-----+-------------' '-------------+-----+-----+-----+-----+-------'
 |      |     |     |     |     |                             !     |     |     |     |      |
 '------------------------------'                             '------------------------------'
                              .---------------. .---------------.
                              |       |       | !       |       |
                      .-------+-------+-------! !-------+-------+-------.
                      !       !       |       | !       |       !       !
                      !       !       !-------! !-------!       !       !
                      |       |       |       | !       |       |       |
                      '-----------------------' '-----------------------'
""",
]


DEFAULT_CONFIG = {
    "keymaps_includes": [
        "keymap_common.h",
    ],
    'filler': "-+.'!:x",
    'separator': "|",
    'default_key_prefix': ["KC_"],
}


SECTIONS = [
    'layout_config',
    'layers',
]


#       Markdown Parsing

ONELINE_COMMENT_RE = re.compile(r"""
    ^                       # comment must be at the start of the line
    \s*                     # arbitrary whitespace
    //                      # start of the comment
    (.*)                    # the comment
    $                       # until the end of line
""", re.MULTILINE | re.VERBOSE
)

INLINE_COMMENT_RE = re.compile(r"""
    ([\,\"\[\]\{\}\d])      # anythig that might end a expression
    \s+                     # comment must be preceded by whitespace
    //                      # start of the comment
    \s                      # and succeded by whitespace
    (?:[^\"\]\}\{\[]*)      # the comment (except things which might be json)
    $                       # until the end of line
""", re.MULTILINE | re.VERBOSE)

TRAILING_COMMA_RE = re.compile(r"""
    ,                       # the comma
    (?:\s*)                 # arbitrary whitespace
    $                       # only works if the trailing comma is followed by newline
    (\s*)                   # arbitrary whitespace
    ([\]\}])                # end of an array or object
""", re.MULTILINE | re.VERBOSE)


def loads(raw_data):
    if isinstance(raw_data, bytes):
        raw_data = raw_data.decode('utf-8')

    raw_data = ONELINE_COMMENT_RE.sub(r"", raw_data)
    raw_data = INLINE_COMMENT_RE.sub(r"\1", raw_data)
    raw_data = TRAILING_COMMA_RE.sub(r"\1\2", raw_data)
    return json.loads(raw_data)


def parse_config(path):
    def reset_section():
        section.update({
            'name': section.get('name', ""),
            'sub_name': "",
            'start_line': -1,
            'end_line': -1,
            'code_lines': [],
        })

    def start_section(line_index, line):
        end_section()
        if line.startswith("# "):
            name = line[2:]
        elif line.startswith("## "):
            name = line[3:]
        else:
            name = ""

        name = name.strip().replace(" ", "_").lower()
        if name in SECTIONS:
            section['name'] = name
        else:
            section['sub_name'] = name
        section['start_line'] = line_index

    def end_section():
        if section['start_line'] >= 0:
            if section['name'] == 'layout_config':
                config.update(loads("\n".join(
                    section['code_lines']
                )))
            elif section['sub_name'].startswith('layer'):
                layer_name = section['sub_name']
                config['layer_lines'][layer_name] = section['code_lines']

        reset_section()

    def amend_section(line_index, line):
        section['end_line'] = line_index
        section['code_lines'].append(line)

    config = DEFAULT_CONFIG.copy()
    config.update({
        'layer_lines': collections.OrderedDict(),
        'macro_ids': {'UM'},
        'unicode_macros': {},
    })

    section = {}
    reset_section()

    with io.open(path, encoding="utf-8") as fh:
        for i, line in enumerate(fh):
            if line.startswith("#"):
                start_section(i, line)
            elif line.startswith("    "):
                amend_section(i, line[4:])
            else:
                # TODO: maybe parse description
                pass

    end_section()
    assert 'layout' in config
    return config

#       header file parsing

IF0_RE = re.compile(r"""
    ^
    #if 0
    $.*?
    #endif
""", re.MULTILINE | re.DOTALL | re.VERBOSE)


COMMENT_RE = re.compile(r"""
    /\*
    .*?
    \*/"
""", re.MULTILINE | re.DOTALL | re.VERBOSE)


def read_header_file(path):
    with io.open(path, encoding="utf-8") as fh:
        data = fh.read()
    data, _ = COMMENT_RE.subn("", data)
    data, _ = IF0_RE.subn("", data)
    return data


def regex_partial(re_str_fmt, flags):
    def partial(*args, **kwargs):
        re_str = re_str_fmt.format(*args, **kwargs)
        return re.compile(re_str, flags)
    return partial


KEYDEF_REP = regex_partial(r"""
    #define
    \s
    (
        (?:{})          # the prefixes
        (?:\w+)         # the key name
    )                   # capture group end
""", re.MULTILINE | re.DOTALL | re.VERBOSE)


ENUM_RE = re.compile(r"""
    (
        enum
        \s\w+\s
        \{
        .*?             # the enum content
        \}
        ;
    )                   # capture group end
""", re.MULTILINE | re.DOTALL | re.VERBOSE)


ENUM_KEY_REP = regex_partial(r"""
    (
        {}              # the prefixes
        \w+             # the key name
    )                   # capture group end
""", re.MULTILINE | re.DOTALL | re.VERBOSE)


def parse_keydefs(config, data):
    prefix_options = "|".join(config['key_prefixes'])
    keydef_re = KEYDEF_REP(prefix_options)
    enum_key_re = ENUM_KEY_REP(prefix_options)
    for match in keydef_re.finditer(data):
        yield match.groups()[0]

    for enum_match in ENUM_RE.finditer(data):
        enum = enum_match.groups()[0]
        for key_match in enum_key_re.finditer(enum):
            yield key_match.groups()[0]


def parse_valid_keys(config, out_path):
    basepath = os.path.abspath(os.path.join(os.path.dirname(out_path)))
    dirpaths = []
    subpaths = []
    while len(subpaths) < 6:
        path = os.path.join(basepath, *subpaths)
        dirpaths.append(path)
        dirpaths.append(os.path.join(path, "tmk_core", "common"))
        dirpaths.append(os.path.join(path, "quantum"))
        subpaths.append('..')

    includes = set(config['keymaps_includes'])
    includes.add("keycode.h")

    valid_keycodes = set()
    for dirpath, include in it.product(dirpaths, includes):
        include_path = os.path.join(dirpath, include)
        if os.path.exists(include_path):
            header_data = read_header_file(include_path)
            valid_keycodes.update(
                parse_keydefs(config, header_data)
            )
    return valid_keycodes


#       Keymap Parsing

def iter_raw_codes(layer_lines, filler, separator):
    filler_re = re.compile("[" + filler + " ]")
    for line in layer_lines:
        line, _ = filler_re.subn("", line.strip())
        if not line:
            continue
        codes = line.split(separator)
        for code in codes[1:-1]:
            yield code


def iter_indexed_codes(raw_codes, key_indexes):
    key_rows = {}
    key_indexes_flat = []

    for row_index, key_indexes in enumerate(key_indexes):
        for key_index in key_indexes:
            key_rows[key_index] = row_index
        key_indexes_flat.extend(key_indexes)
    assert len(raw_codes) == len(key_indexes_flat)
    for raw_code, key_index in zip(raw_codes, key_indexes_flat):
        # we keep track of the row mostly for layout purposes
        yield raw_code, key_index, key_rows[key_index]


LAYER_CHANGE_RE = re.compile(r"""
    (DF|TG|MO)\(\d+\)
""", re.VERBOSE)


MACRO_RE = re.compile(r"""
    M\(\w+\)
""", re.VERBOSE)


UNICODE_RE = re.compile(r"""
    U[0-9A-F]{4}
""", re.VERBOSE)


NON_CODE = re.compile(r"""
    ^[^A-Z0-9_]$
""", re.VERBOSE)


def parse_uni_code(raw_code):
    macro_id = "UC_" + (
        unicodedata.name(raw_code)
        .replace(" ", "_")
        .replace("-", "_")
    )
    code = "M({})".format(macro_id)
    uc_hex = "{:04X}".format(ord(raw_code))
    return code, macro_id, uc_hex


def parse_key_code(raw_code, key_prefixes, valid_keycodes):
    if raw_code in valid_keycodes:
        return raw_code

    for prefix in key_prefixes:
        code = prefix + raw_code
        if code in valid_keycodes:
            return code


def parse_code(raw_code, key_prefixes, valid_keycodes):
    if not raw_code:
        return 'KC_TRNS', None, None

    if LAYER_CHANGE_RE.match(raw_code):
        return raw_code, None, None

    if MACRO_RE.match(raw_code):
        macro_id = raw_code[2:-1]
        return raw_code, macro_id, None

    if UNICODE_RE.match(raw_code):
        hex_code = raw_code[1:]
        return parse_uni_code(chr(int(hex_code, 16)))

    if NON_CODE.match(raw_code):
        return parse_uni_code(raw_code)

    code = parse_key_code(raw_code, key_prefixes, valid_keycodes)
    return code, None, None


def parse_keymap(config, key_indexes, layer_lines, valid_keycodes):
    keymap = {}
    raw_codes = list(iter_raw_codes(
        layer_lines, config['filler'], config['separator']
    ))
    indexed_codes = iter_indexed_codes(raw_codes, key_indexes)
    key_prefixes = config['key_prefixes']
    for raw_code, key_index, row_index in indexed_codes:
        code, macro_id, uc_hex = parse_code(
            raw_code, key_prefixes, valid_keycodes
        )
        # TODO: line numbers for invalid codes
        err_msg = "Could not parse key '{}' on row {}".format(
            raw_code, row_index
        )
        assert code is not None, err_msg
        # print(repr(raw_code), repr(code), macro_id, uc_hex)
        if macro_id:
            config['macro_ids'].add(macro_id)
        if uc_hex:
            config['unicode_macros'][macro_id] = uc_hex
        keymap[key_index] = (code, row_index)
    return keymap


def parse_keymaps(config, valid_keycodes):
    keymaps = collections.OrderedDict()
    key_indexes = config.get(
        'key_indexes', KEYBOARD_LAYOUTS[config['layout']]
    )
    # TODO: maybe validate key_indexes

    for layer_name, layer_lines, in config['layer_lines'].items():
        keymaps[layer_name] = parse_keymap(
            config, key_indexes, layer_lines, valid_keycodes
        )
    return keymaps

#       keymap.c output

USERCODE = """
// Runs just one time when the keyboard initializes.
void matrix_init_user(void) {

};

// Runs constantly in the background, in a loop.
void matrix_scan_user(void) {
    uint8_t layer = biton32(layer_state);

    ergodox_board_led_off();
    ergodox_right_led_1_off();
    ergodox_right_led_2_off();
    ergodox_right_led_3_off();
    switch (layer) {
        case L1:
            ergodox_right_led_1_on();
            break;
        case L2:
            ergodox_right_led_2_on();
            break;
        case L3:
            ergodox_right_led_3_on();
            break;
        case L4:
            ergodox_right_led_1_on();
            ergodox_right_led_2_on();
            break;
        case L5:
            ergodox_right_led_1_on();
            ergodox_right_led_3_on();
            break;
        // case L6:
        //     ergodox_right_led_2_on();
        //     ergodox_right_led_3_on();
        //     break;
        // case L7:
        //     ergodox_right_led_1_on();
        //     ergodox_right_led_2_on();
        //     ergodox_right_led_3_on();
        //     break;
        default:
            ergodox_board_led_off();
            break;
    }
};
"""

MACROCODE = """
#define UC_MODE_WIN 0
#define UC_MODE_LINUX 1
#define UC_MODE_OSX 2

// TODO: allow default mode to be configured
static uint16_t unicode_mode = UC_MODE_WIN;

uint16_t hextokeycode(uint8_t hex) {{
    if (hex == 0x0) {{
        return KC_P0;
    }}
    if (hex < 0xA) {{
        return KC_P1 + (hex - 0x1);
    }}
    return KC_A + (hex - 0xA);
}}

void unicode_action_function(uint16_t hi, uint16_t lo) {{
    switch (unicode_mode) {{
    case UC_MODE_WIN:
        register_code(KC_LALT);

        register_code(KC_PPLS);
        unregister_code(KC_PPLS);

        register_code(hextokeycode((hi & 0xF0) >> 4));
        unregister_code(hextokeycode((hi & 0xF0) >> 4));
        register_code(hextokeycode((hi & 0x0F)));
        unregister_code(hextokeycode((hi & 0x0F)));
        register_code(hextokeycode((lo & 0xF0) >> 4));
        unregister_code(hextokeycode((lo & 0xF0) >> 4));
        register_code(hextokeycode((lo & 0x0F)));
        unregister_code(hextokeycode((lo & 0x0F)));

        unregister_code(KC_LALT);
        break;
    case UC_MODE_LINUX:
        register_code(KC_LCTL);
        register_code(KC_LSFT);

        register_code(KC_U);
        unregister_code(KC_U);

        register_code(hextokeycode((hi & 0xF0) >> 4));
        unregister_code(hextokeycode((hi & 0xF0) >> 4));
        register_code(hextokeycode((hi & 0x0F)));
        unregister_code(hextokeycode((hi & 0x0F)));
        register_code(hextokeycode((lo & 0xF0) >> 4));
        unregister_code(hextokeycode((lo & 0xF0) >> 4));
        register_code(hextokeycode((lo & 0x0F)));
        unregister_code(hextokeycode((lo & 0x0F)));

        unregister_code(KC_LCTL);
        unregister_code(KC_LSFT);
        break;
    case UC_MODE_OSX:
        break;
    }}
}}

const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {{
    if (!record->event.pressed) {{
        return MACRO_NONE;
    }}
    // MACRODOWN only works in this function
    switch(id) {{
        case UM:
            unicode_mode = (unicode_mode + 1) % 2;
            break;
{macro_cases}
{unicode_macro_cases}
        default:
            break;
    }}
    return MACRO_NONE;
}};
"""


UNICODE_MACRO_TEMPLATE = """
case {macro_id}:
    unicode_action_function(0x{hi:02x}, 0x{lo:02x});
    break;
""".strip()


def unicode_macro_cases(config):
    for macro_id, uc_hex in config['unicode_macros'].items():
        hi = int(uc_hex, 16) >> 8
        lo = int(uc_hex, 16) & 0xFF
        unimacro_keys = ", ".join(
            "T({})".format(
                "KP_" + digit if digit.isdigit() else digit
            ) for digit in uc_hex
        )
        yield UNICODE_MACRO_TEMPLATE.format(
            macro_id=macro_id, hi=hi, lo=lo
        )


def iter_keymap_lines(keymap, row_indents=None):
    col_widths = {}
    col = 0
    # first pass, figure out the column widths
    prev_row_index = None
    for code, row_index in keymap.values():
        if row_index != prev_row_index:
            col = 0
            if row_indents:
                col = row_indents[row_index]
        col_widths[col] = max(len(code), col_widths.get(col, 0))
        prev_row_index = row_index
        col += 1

    # second pass, yield the cell values
    col = 0
    prev_row_index = None
    for key_index in sorted(keymap):
        code, row_index = keymap[key_index]
        if row_index != prev_row_index:
            col = 0
            yield "\n"
            if row_indents:
                for indent_col in range(row_indents[row_index]):
                    pad = " " * (col_widths[indent_col] - 4)
                    yield (" /*-*/" + pad)
                col = row_indents[row_index]
        else:
            yield pad
        yield " {}".format(code)
        if key_index < len(keymap) - 1:
            yield ","
            # This will be yielded on the next iteration when
            # we know that we're not at the end of a line.
            pad = " " * (col_widths[col] - len(code))
        prev_row_index = row_index
        col += 1


def iter_keymap_parts(config, keymaps):
    # includes
    for include_path in config['keymaps_includes']:
        yield '#include "{}"\n'.format(include_path)

    yield "\n"

    # definitions
    for i, macro_id in enumerate(sorted(config['macro_ids'])):
        yield "#define {} {}\n".format(macro_id, i)

    yield "\n"

    for i, layer_name in enumerate(config['layer_lines']):
        yield '#define L{0:<3} {0:<5}  // {1}\n'.format(i, layer_name)

    yield "\n"

    # keymaps
    yield "const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {\n"

    for i, layer_name in enumerate(config['layer_lines']):
        # comment
        layer_lines = config['layer_lines'][layer_name]
        prefixed_lines = " * " + " * ".join(layer_lines)
        yield "/*\n{} */\n".format(prefixed_lines)

        # keymap codes
        keymap = keymaps[layer_name]
        row_indents = ROW_INDENTS.get(config['layout'])
        keymap_lines = "".join(iter_keymap_lines(keymap, row_indents))
        yield "[L{0}] = KEYMAP({1}\n),\n".format(i, keymap_lines)

    yield "};\n\n"

    # no idea what this is for
    yield "const uint16_t PROGMEM fn_actions[] = {};\n"

    # macros
    yield MACROCODE.format(
        macro_cases="",
        unicode_macro_cases="\n".join(unicode_macro_cases(config)),
    )

    # TODO: dynamically create blinking lights
    yield USERCODE


def main(argv=sys.argv[1:]):
    if not argv or '-h' in argv or '--help' in argv:
        print(__doc__)
        return 0

    in_path = os.path.abspath(argv[0])
    if not os.path.exists(in_path):
        print("No such file '{}'".format(in_path))
        return 1

    if len(argv) > 1:
        out_path = os.path.abspath(argv[1])
    else:
        dirname = os.path.dirname(in_path)
        out_path = os.path.join(dirname, "keymap.c")

    config = parse_config(in_path)
    valid_keys = parse_valid_keys(config, out_path)
    keymaps = parse_keymaps(config, valid_keys)

    with io.open(out_path, mode="w", encoding="utf-8") as fh:
        for part in iter_keymap_parts(config, keymaps):
            fh.write(part)


if __name__ == '__main__':
    sys.exit(main())