2019-11-05 07:14:15 +00:00
#!/usr/bin/env python
import argparse
import pycparser
import re
class KeymapBeautifier :
justify_toward_center = False
filename_in = None
filename_out = None
output_layout = None
output = None
column_max_widths = { }
KEY_ALIASES = {
" KC_TRANSPARENT " : " _______ " ,
" KC_TRNS " : " _______ " ,
" KC_NO " : " XXXXXXX " ,
}
KEYMAP_START = ' const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { \n '
KEYMAP_END = ' }; \n '
KEYMAP_START_REPLACEMENT = " const int keymaps[]= { \n "
KEY_CHART = """
/ *
* , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - .
* | 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 |
* | - - - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - | 26 | | 58 | - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - - - |
* | 20 | 21 | 22 | 23 | 24 | 25 | | | | 59 | 60 | 61 | 62 | 63 | 64 |
* ` - - - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - + - - - - - - - - - - - - - ' `-------------+------+------+------+------+-------- '
* | 27 | 28 | 29 | 30 | 31 | | 65 | 66 | 67 | 68 | 69 |
* ` - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ' `---------------------------------- '
* , - - - - - - - - - - - - - . , - - - - - - - - - - - - - .
* | 32 | 33 | | 70 | 71 |
* , - - - - - - + - - - - - - + - - - - - - | | - - - - - - + - - - - - - + - - - - - - .
* | | | 34 | | 72 | | |
* | 35 | 36 | - - - - - - | | - - - - - - | 74 | 75 |
* | | | 37 | | 73 | | |
* ` - - - - - - - - - - - - - - - - - - - - ' `-------------------- '
* /
"""
KEY_COORDINATES = {
' LAYOUT_ergodox ' : [
# left hand
( 0 , 0 ) , ( 0 , 1 ) , ( 0 , 2 ) , ( 0 , 3 ) , ( 0 , 4 ) , ( 0 , 5 ) , ( 0 , 6 ) ,
( 1 , 0 ) , ( 1 , 1 ) , ( 1 , 2 ) , ( 1 , 3 ) , ( 1 , 4 ) , ( 1 , 5 ) , ( 1 , 6 ) ,
( 2 , 0 ) , ( 2 , 1 ) , ( 2 , 2 ) , ( 2 , 3 ) , ( 2 , 4 ) , ( 2 , 5 ) ,
( 3 , 0 ) , ( 3 , 1 ) , ( 3 , 2 ) , ( 3 , 3 ) , ( 3 , 4 ) , ( 3 , 5 ) , ( 3 , 6 ) ,
( 4 , 0 ) , ( 4 , 1 ) , ( 4 , 2 ) , ( 4 , 3 ) , ( 4 , 4 ) ,
# left thumb
( 5 , 5 ) , ( 5 , 6 ) ,
( 6 , 6 ) ,
( 7 , 4 ) , ( 7 , 5 ) , ( 7 , 6 ) ,
# right hand
( 8 , 0 ) , ( 8 , 1 ) , ( 8 , 2 ) , ( 8 , 3 ) , ( 8 , 4 ) , ( 8 , 5 ) , ( 8 , 6 ) ,
( 9 , 0 ) , ( 9 , 1 ) , ( 9 , 2 ) , ( 9 , 3 ) , ( 9 , 4 ) , ( 9 , 5 ) , ( 9 , 6 ) ,
( 10 , 1 ) , ( 10 , 2 ) , ( 10 , 3 ) , ( 10 , 4 ) , ( 10 , 5 ) , ( 10 , 6 ) ,
( 11 , 0 ) , ( 11 , 1 ) , ( 11 , 2 ) , ( 11 , 3 ) , ( 11 , 4 ) , ( 11 , 5 ) , ( 11 , 6 ) ,
( 12 , 2 ) , ( 12 , 3 ) , ( 12 , 4 ) , ( 12 , 5 ) , ( 12 , 6 ) ,
# right thumb
( 13 , 0 ) , ( 13 , 1 ) ,
( 14 , 0 ) ,
( 15 , 0 ) , ( 15 , 1 ) , ( 15 , 2 )
] ,
' LAYOUT_ergodox_pretty ' : [
# left hand and right hand
( 0 , 0 ) , ( 0 , 1 ) , ( 0 , 2 ) , ( 0 , 3 ) , ( 0 , 4 ) , ( 0 , 5 ) , ( 0 , 6 ) , ( 0 , 7 ) , ( 0 , 8 ) , ( 0 , 9 ) , ( 0 , 10 ) , ( 0 , 11 ) , ( 0 , 12 ) , ( 0 , 13 ) ,
( 1 , 0 ) , ( 1 , 1 ) , ( 1 , 2 ) , ( 1 , 3 ) , ( 1 , 4 ) , ( 1 , 5 ) , ( 1 , 6 ) , ( 1 , 7 ) , ( 1 , 8 ) , ( 1 , 9 ) , ( 1 , 10 ) , ( 1 , 11 ) , ( 1 , 12 ) , ( 1 , 13 ) ,
( 2 , 0 ) , ( 2 , 1 ) , ( 2 , 2 ) , ( 2 , 3 ) , ( 2 , 4 ) , ( 2 , 5 ) , ( 2 , 8 ) , ( 2 , 9 ) , ( 2 , 10 ) , ( 2 , 11 ) , ( 2 , 12 ) , ( 2 , 13 ) ,
( 3 , 0 ) , ( 3 , 1 ) , ( 3 , 2 ) , ( 3 , 3 ) , ( 3 , 4 ) , ( 3 , 5 ) , ( 3 , 6 ) , ( 3 , 7 ) , ( 3 , 8 ) , ( 3 , 9 ) , ( 3 , 10 ) , ( 3 , 11 ) , ( 3 , 12 ) , ( 3 , 13 ) ,
( 4 , 0 ) , ( 4 , 1 ) , ( 4 , 2 ) , ( 4 , 3 ) , ( 4 , 4 ) , ( 4 , 9 ) , ( 4 , 10 ) , ( 4 , 11 ) , ( 4 , 12 ) , ( 4 , 13 ) ,
# left thumb and right thumb
( 5 , 5 ) , ( 5 , 6 ) , ( 5 , 7 ) , ( 5 , 8 ) ,
( 6 , 6 ) , ( 6 , 7 ) ,
( 7 , 4 ) , ( 7 , 5 ) , ( 7 , 6 ) , ( 7 , 7 ) , ( 7 , 8 ) , ( 7 , 9 )
] ,
}
current_converted_KEY_COORDINATES = [ ]
# each column is aligned within each group (tuples of row indexes are inclusive)
KEY_ROW_GROUPS = {
' LAYOUT_ergodox ' : [ ( 0 , 4 ) , ( 5 , 7 ) , ( 8 , 12 ) , ( 13 , 15 ) ] ,
' LAYOUT_ergodox_pretty ' : [ ( 0 , 7 ) ] ,
#'LAYOUT_ergodox_pretty': [(0,5),(6,7)],
#'LAYOUT_ergodox_pretty': [(0,3),(4,4),(5,7)],
#'LAYOUT_ergodox_pretty': [(0,4),(5,7)],
}
INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox = [
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 ,
]
def index_conversion_map_reversed ( self , conversion_map ) :
return [ conversion_map . index ( i ) for i in range ( len ( conversion_map ) ) ]
def __init__ ( self , source_code = " " , output_layout = " LAYOUT_ergodox " , justify_toward_center = False ) :
self . output_layout = output_layout
self . justify_toward_center = justify_toward_center
# determine the conversion map
#if input_layout == self.output_layout:
# conversion_map = [i for i in range(len(self.INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox))]
#conversion_map = self.INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox
if self . output_layout == " LAYOUT_ergodox_pretty " :
index_conversion_map = self . index_conversion_map_reversed ( self . INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox )
else :
index_conversion_map = list ( range ( len ( self . INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox ) ) )
self . current_converted_KEY_COORDINATES = [
self . KEY_COORDINATES [ self . output_layout ] [ index_conversion_map [ i ] ]
for i in range ( len ( self . KEY_COORDINATES [ self . output_layout ] ) )
]
self . output = self . beautify_source_code ( source_code )
def beautify_source_code ( self , source_code ) :
# to keep it simple for the parser, we only use the parser to parse the key definition part
src = {
" before " : [ ] ,
" keys " : [ ] ,
" after " : [ ] ,
}
current_section = " before "
for line in source_code . splitlines ( True ) :
if current_section == ' before ' and line == self . KEYMAP_START :
src [ current_section ] . append ( " \n " )
current_section = ' keys '
src [ current_section ] . append ( self . KEYMAP_START_REPLACEMENT )
continue
elif current_section == ' keys ' and line == self . KEYMAP_END :
src [ current_section ] . append ( self . KEYMAP_END )
current_section = ' after '
continue
src [ current_section ] . append ( line )
output_lines = src [ ' before ' ] + self . beautify_keys_section ( " " . join ( src [ ' keys ' ] ) ) + src [ ' after ' ]
return " " . join ( output_lines )
def beautify_keys_section ( self , src ) :
parsed = self . parser ( src )
layer_output = [ ]
keymap = parsed . children ( ) [ 0 ]
layers = keymap [ 1 ]
for layer in layers . init . exprs :
input_layout = layer . expr . name . name
key_symbols = self . layer_expr ( layer )
# re-order keys from input_layout to regular layout
if input_layout == " LAYOUT_ergodox_pretty " :
key_symbols = [ key_symbols [ i ] for i in self . index_conversion_map_reversed ( self . INDEX_CONVERSTION_LAYOUT_ergodox_pretty_to_LAYOUT_ergodox ) ]
padded_key_symbols = self . pad_key_symbols ( key_symbols , input_layout )
current_pretty_output_layer = self . pretty_output_layer ( layer . name [ 0 ] . value , padded_key_symbols )
# strip trailing spaces from padding
layer_output . append ( re . sub ( r " + \ n " , " \n " , current_pretty_output_layer ) )
return [ self . KEYMAP_START + " \n " ,
self . KEY_CHART + " \n " ,
" , \n \n " . join ( layer_output ) + " \n " ,
self . KEYMAP_END + " \n " ]
def get_row_group ( self , row ) :
for low , high in self . KEY_ROW_GROUPS [ self . output_layout ] :
if low < = row < = high :
return ( low , high )
raise Exception ( " Cannot find row groups in KEY_ROW_GROUPS " )
def calculate_column_max_widths ( self , key_symbols ) :
# calculate the max width for each column
self . column_max_widths = { }
for i in range ( len ( key_symbols ) ) :
row_index , column_index = self . current_converted_KEY_COORDINATES [ i ]
row_group = self . get_row_group ( row_index )
if ( row_group , column_index ) in self . column_max_widths :
self . column_max_widths [ ( row_group , column_index ) ] = max ( self . column_max_widths [ ( row_group , column_index ) ] , len ( key_symbols [ i ] ) )
else :
self . column_max_widths [ ( row_group , column_index ) ] = len ( key_symbols [ i ] )
def pad_key_symbols ( self , key_symbols , input_layout , just = ' left ' ) :
self . calculate_column_max_widths ( key_symbols )
padded_key_symbols = [ ]
# pad each key symbol
for i in range ( len ( key_symbols ) ) :
key = key_symbols [ i ]
# look up column coordinate to determine number of spaces to pad
row_index , column_index = self . current_converted_KEY_COORDINATES [ i ]
row_group = self . get_row_group ( row_index )
if just == ' left ' :
padded_key_symbols . append ( key . ljust ( self . column_max_widths [ ( row_group , column_index ) ] ) )
else :
padded_key_symbols . append ( key . rjust ( self . column_max_widths [ ( row_group , column_index ) ] ) )
return padded_key_symbols
layer_keys_pointer = 0
layer_keys = None
def grab_next_n_columns ( self , n_columns , input_layout , layer_keys = None , from_beginning = False ) :
if layer_keys :
self . layer_keys = layer_keys
if from_beginning :
self . layer_keys_pointer = 0
begin = self . layer_keys_pointer
end = begin + n_columns
return self . layer_keys [ self . layer_keys_pointer - n_keys : self . layer_keys_pointer ]
key_coordinates_counter = 0
def get_padded_line ( self , source_keys , key_from , key_to , just = " left " ) :
if just == " right " :
keys = [ k . strip ( ) . rjust ( len ( k ) ) for k in source_keys [ key_from : key_to ] ]
else :
keys = [ k for k in source_keys [ key_from : key_to ] ]
from_row , from_column = self . KEY_COORDINATES [ self . output_layout ] [ self . key_coordinates_counter ]
row_group = self . get_row_group ( from_row )
self . key_coordinates_counter + = key_to - key_from
columns_before_key_from = sorted ( [ col for row , col in self . KEY_COORDINATES [ self . output_layout ] if row == from_row and col < from_column ] )
# figure out which columns in this row needs padding; only pad empty columns to the right of an existing column
columns_to_pad = { c : True for c in range ( from_column ) }
if columns_before_key_from :
for c in range ( max ( columns_before_key_from ) + 1 ) :
columns_to_pad [ c ] = False
# for rows with fewer columns that don't start with column 0, we need to insert leading spaces
spaces = 0
for c , v in columns_to_pad . items ( ) :
if not v :
continue
if ( row_group , c ) in self . column_max_widths :
spaces + = self . column_max_widths [ ( row_group , c ) ] + len ( " , " )
else :
spaces + = 0
return " " * spaces + " , " . join ( keys ) + " , "
def pretty_output_layer ( self , layer , keys ) :
self . key_coordinates_counter = 0
if self . output_layout == " LAYOUT_ergodox " :
formatted_key_symbols = """
/ / left hand
{ }
{ }
{ }
{ }
{ }
/ / left thumb
{ }
{ }
{ }
/ / right hand
{ }
{ }
{ }
{ }
{ }
/ / right thumb
{ }
{ }
{ }
""" .format(
# left hand
self . get_padded_line ( keys , 0 , 7 , just = " left " ) ,
self . get_padded_line ( keys , 7 , 14 , just = " left " ) ,
self . get_padded_line ( keys , 14 , 20 , just = " left " ) ,
self . get_padded_line ( keys , 20 , 27 , just = " left " ) ,
self . get_padded_line ( keys , 27 , 32 , just = " left " ) ,
# left thumb
self . get_padded_line ( keys , 32 , 34 , just = " left " ) ,
self . get_padded_line ( keys , 34 , 35 , just = " left " ) ,
self . get_padded_line ( keys , 35 , 38 , just = " left " ) ,
# right hand
self . get_padded_line ( keys , 38 , 45 , just = " left " ) ,
self . get_padded_line ( keys , 45 , 52 , just = " left " ) ,
self . get_padded_line ( keys , 52 , 58 , just = " left " ) ,
self . get_padded_line ( keys , 58 , 65 , just = " left " ) ,
self . get_padded_line ( keys , 65 , 70 , just = " left " ) ,
# right thumb
self . get_padded_line ( keys , 70 , 72 , just = " left " ) ,
self . get_padded_line ( keys , 72 , 73 , just = " left " ) ,
self . get_padded_line ( keys , 73 , 76 , just = " left " ) ,
)
elif self . output_layout == " LAYOUT_ergodox_pretty " :
left_half_justification = " right " if self . justify_toward_center else " left "
formatted_key_symbols = """
{ } { }
{ } { }
{ } { }
{ } { }
{ } { }
{ } { }
{ } { }
{ } { }
""" .format(
self . get_padded_line ( keys , 0 , 7 , just = left_half_justification ) , self . get_padded_line ( keys , 38 , 45 , just = " left " ) ,
self . get_padded_line ( keys , 7 , 14 , just = left_half_justification ) , self . get_padded_line ( keys , 45 , 52 , just = " left " ) ,
self . get_padded_line ( keys , 14 , 20 , just = left_half_justification ) , self . get_padded_line ( keys , 52 , 58 , just = " left " ) ,
self . get_padded_line ( keys , 20 , 27 , just = left_half_justification ) , self . get_padded_line ( keys , 58 , 65 , just = " left " ) ,
self . get_padded_line ( keys , 27 , 32 , just = left_half_justification ) , self . get_padded_line ( keys , 65 , 70 , just = " left " ) ,
self . get_padded_line ( keys , 32 , 34 , just = left_half_justification ) , self . get_padded_line ( keys , 70 , 72 , just = " left " ) ,
self . get_padded_line ( keys , 34 , 35 , just = left_half_justification ) , self . get_padded_line ( keys , 72 , 73 , just = " left " ) ,
self . get_padded_line ( keys , 35 , 38 , just = left_half_justification ) , self . get_padded_line ( keys , 73 , 76 , just = " left " ) ,
)
else :
formatted_key_symbols = " "
# rid of the trailing comma
formatted_key_symbols = formatted_key_symbols [ 0 : len ( formatted_key_symbols ) - 2 ] + " \n "
s = " [ {} ] = {} ( {} ) " . format ( layer , self . output_layout , formatted_key_symbols )
return s
# helper functions for pycparser
def parser ( self , src ) :
src = self . comment_remover ( src )
return pycparser . CParser ( ) . parse ( src )
def comment_remover ( self , text ) :
# remove comments since pycparser cannot deal with them
# credit: https://stackoverflow.com/a/241506
def replacer ( match ) :
s = match . group ( 0 )
if s . startswith ( ' / ' ) :
return " " # note: a space and not an empty string
else :
return s
pattern = re . compile (
r ' //.*?$|/ \ *.*? \ */| \' (?: \\ .|[^ \\ \' ])* \' | " (?: \\ .|[^ \\ " ])* " ' ,
re . DOTALL | re . MULTILINE
)
return re . sub ( pattern , replacer , text )
def function_expr ( self , f ) :
name = f . name . name
args = [ ]
for arg in f . args . exprs :
if type ( arg ) is pycparser . c_ast . Constant :
args . append ( arg . value )
elif type ( arg ) is pycparser . c_ast . ID :
args . append ( arg . name )
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elif type ( arg ) is pycparser . c_ast . FuncCall :
args . append ( self . function_expr ( arg ) )
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return " {} ( {} ) " . format ( name , " , " . join ( args ) )
def key_expr ( self , raw ) :
if type ( raw ) is pycparser . c_ast . ID :
if raw . name in self . KEY_ALIASES :
return self . KEY_ALIASES [ raw . name ]
return raw . name
elif type ( raw ) is pycparser . c_ast . FuncCall :
return self . function_expr ( raw )
def layer_expr ( self , layer ) :
transformed = [ self . key_expr ( k ) for k in layer . expr . args . exprs ]
return transformed
if __name__ == " __main__ " :
parser = argparse . ArgumentParser ( description = " Beautify keymap.c downloaded from ErgoDox-Ez Configurator for easier customization. " )
parser . add_argument ( " input_filename " , help = " input file: c source code file that has the layer keymaps " )
parser . add_argument ( " -o " , " --output-filename " , help = " output file: beautified c filename. If not given, output to STDOUT. " )
parser . add_argument ( " -p " , " --pretty-output-layout " , action = " store_true " , help = " use LAYOUT_ergodox_pretty for output instead of LAYOUT_ergodox " )
parser . add_argument ( " -c " , " --justify-toward-center " , action = " store_true " , help = " for LAYOUT_ergodox_pretty, align right for the left half, and align left for the right half. Default is align left for both halves. " )
args = parser . parse_args ( )
if args . pretty_output_layout :
output_layout = " LAYOUT_ergodox_pretty "
else :
output_layout = " LAYOUT_ergodox "
with open ( args . input_filename ) as f :
source_code = f . read ( )
result = KeymapBeautifier ( source_code , output_layout = output_layout , justify_toward_center = args . justify_toward_center ) . output
if args . output_filename :
with open ( args . output_filename , " w " ) as f :
f . write ( result )
else :
print ( result )