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
|
vim9script
# This script tests a color scheme for some errors and lists potential errors.
# Load the scheme and source this script, like this:
# :edit colors/desert.vim | :ru colors/tools/check_colors.vim
def Test_check_colors()
const savedview = winsaveview()
cursor(1, 1)
# err is
# {
# colors_name: "message",
# init: "message",
# background: "message",
# ....etc
# highlight: {
# 'Normal': "Missing ...",
# 'Conceal': "Missing ..."
# ....etc
# }
# }
var err: dict<any> = {}
# 1) Check g:colors_name is existing
if search('\<\%(g:\)\?colors_name\>', 'cnW') == 0
err['colors_name'] = 'g:colors_name not set'
else
err['colors_name'] = 'OK'
endif
# 2) Check for some well-defined highlighting groups
const hi_groups = [
'ColorColumn',
'Comment',
'Conceal',
'Constant',
'CurSearch',
'Cursor',
'CursorColumn',
'CursorLine',
'CursorLineNr',
'CursorLineFold',
'CursorLineSign',
'DiffAdd',
'DiffChange',
'DiffDelete',
'DiffText',
'Directory',
'EndOfBuffer',
'Error',
'ErrorMsg',
'FoldColumn',
'Folded',
'Identifier',
'Ignore',
'IncSearch',
'LineNr',
'LineNrAbove',
'LineNrBelow',
'MatchParen',
'ModeMsg',
'MoreMsg',
'NonText',
'Normal',
'Pmenu',
'PmenuSbar',
'PmenuSel',
'PmenuThumb',
'PreProc',
'Question',
'QuickFixLine',
'Search',
'SignColumn',
'Special',
'SpecialKey',
'SpellBad',
'SpellCap',
'SpellLocal',
'SpellRare',
'Statement',
'StatusLine',
'StatusLineNC',
'StatusLineTerm',
'StatusLineTermNC',
'TabLine',
'TabLineFill',
'TabLineSel',
'Title',
'Todo',
'ToolbarButton',
'ToolbarLine',
'Type',
'Underlined',
'VertSplit',
'Visual',
'VisualNOS',
'WarningMsg',
'WildMenu',
'debugPC',
'debugBreakpoint',
]
var groups = {}
for group in hi_groups
if search('\c@suppress\s\+\<' .. group .. '\>', 'cnW') != 0
# skip check, if the script contains a line like
# @suppress Visual:
continue
endif
if search('hi\%[ghlight]!\= \+link \+' .. group, 'cnW') != 0 # Linked group
continue
endif
if search('hi\%[ghlight] \+\<' .. group .. '\>', 'cnW') == 0
groups[group] = 'No highlight definition for ' .. group
continue
endif
if search('hi\%[ghlight] \+\<' .. group .. '\>.*[bf]g=', 'cnW') == 0
groups[group] = 'Missing foreground or background color for ' .. group
continue
endif
if search('hi\%[ghlight] \+\<' .. group .. '\>.*guibg=', 'cnW') != 0
&& search('hi\%[ghlight] \+\<' .. group .. '\>.*ctermbg=', 'cnW') == 0
&& group != 'Cursor'
groups[group] = 'Missing bg terminal color for ' .. group
continue
endif
if search('hi\%[ghlight] \+\<' .. group .. '\>.*guifg=', 'cnW') == 0
&& group !~ '^Diff'
groups[group] = 'Missing guifg definition for ' .. group
continue
endif
if search('hi\%[ghlight] \+\<' .. group .. '\>.*ctermfg=', 'cnW') == 0
&& group !~ '^Diff'
&& group != 'Cursor'
groups[group] = 'Missing ctermfg definition for ' .. group
continue
endif
# do not check for background colors, they could be intentionally left out
cursor(1, 1)
endfor
err['highlight'] = groups
# 3) Check, that it does not set background highlighting
# Doesn't ':hi Normal ctermfg=253 ctermfg=233' also set the background sometimes?
const bg_set = '\(set\?\|setl\(ocal\)\?\) .*\(background\|bg\)=\(dark\|light\)'
const bg_let = 'let \%([&]\%([lg]:\)\?\)\%(background\|bg\)\s*=\s*\([''"]\?\)\w\+\1'
const bg_pat = '\%(' .. bg_set .. '\|' .. bg_let .. '\)'
const line = search(bg_pat, 'cnW')
if search(bg_pat, 'cnW') != 0
exe ":" .. line
if search('hi \U\w\+\s\+\S', 'cbnW') != 0
err['background'] = 'Should not set background option after :hi statement'
endif
else
err['background'] = 'OK'
endif
cursor(1, 1)
# 4) Check, that t_Co is checked
var pat = '[&]t_Co\s*[<>=]=\?\s*\d\+'
if search(pat, 'ncW') == 0
err['t_Co'] = 'Does not check terminal for capable colors'
endif
# 5) Initializes correctly, e.g. should have at least:
# hi clear
pat = '^\s*hi\%[ghlight]\s*clear\s*$'
if search(pat, 'cnW') == 0
err['init'] = 'No initialization'
endif
# 6) Does not use :syn on
if search('syn\%[tax]\s\+on', 'cnW') != 0
err['background'] = 'Should not issue :syn on'
endif
# 7) Normal should be defined first, not use reverse, fg or bg
cursor(1, 1)
pat = 'hi\%[light] \+\%(link\|clear\)\@!\w\+\>'
search(pat, 'cW') # Look for the first hi def, skipping `hi link` and `hi clear`
if getline('.') !~# '\m\<Normal\>'
err['highlight']['Normal'] = 'Should be defined first'
elseif getline('.') =~# '\m\%(=\%(fg\|bg\)\)'
err['highlight']['Normal'] = "Should not use 'fg' or 'bg'"
elseif getline('.') =~# '\m=\%(inv\|rev\)erse'
err['highlight']['Normal'] = 'Should not use reverse mode'
endif
# 8) TODO: XXX: Check if g:terminal_ansi_colors are defined
winrestview(savedview)
g:err = err
Result(err)
enddef
def Result(err: dict<any>)
var do_groups: bool = v:false
echohl Title | echomsg "---------------" | echohl Normal
for key in sort(keys(err))
if key == 'highlight'
do_groups = !empty(err[key])
continue
else
if err[key] !~ 'OK'
echohl Title
endif
echomsg printf("%15s: %s", key, err[key])
echohl Normal
endif
endfor
echohl Title | echomsg "---------------" | echohl Normal
if do_groups
echohl Title | echomsg "Groups" | echohl Normal
for v1 in sort(keys(err['highlight']))
echomsg printf("%25s: %s", v1, err['highlight'][v1])
endfor
endif
enddef
Test_check_colors()
|