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
|
---Helper function to parse argb
local api = vim.api
local bit = require "bit"
local tohex = bit.tohex
local min, max = math.min, math.max
local Trie = require "colorizer.trie"
local utils = require "colorizer.utils"
local byte_is_valid_colorchar = utils.byte_is_valid_colorchar
local parser = {}
local COLOR_MAP
local COLOR_TRIE
local COLOR_NAME_MINLEN, COLOR_NAME_MAXLEN
local COLOR_NAME_SETTINGS = { lowercase = true, strip_digits = false }
local TAILWIND_ENABLED = false
--- Grab all the colour values from `vim.api.nvim_get_color_map` and create a lookup table.
-- COLOR_MAP is used to store the colour values
---@param line string: Line to parse
---@param i number: Index of line from where to start parsing
---@param opts table: Currently contains whether tailwind is enabled or not
function parser.name_parser(line, i, opts)
--- Setup the COLOR_MAP and COLOR_TRIE
if not COLOR_TRIE or opts.tailwind ~= TAILWIND_ENABLED then
COLOR_MAP = {}
COLOR_TRIE = Trie()
for k, v in pairs(api.nvim_get_color_map()) do
if not (COLOR_NAME_SETTINGS.strip_digits and k:match "%d+$") then
COLOR_NAME_MINLEN = COLOR_NAME_MINLEN and min(#k, COLOR_NAME_MINLEN) or #k
COLOR_NAME_MAXLEN = COLOR_NAME_MAXLEN and max(#k, COLOR_NAME_MAXLEN) or #k
local rgb_hex = tohex(v, 6)
COLOR_MAP[k] = rgb_hex
COLOR_TRIE:insert(k)
if COLOR_NAME_SETTINGS.lowercase then
local lowercase = k:lower()
COLOR_MAP[lowercase] = rgb_hex
COLOR_TRIE:insert(lowercase)
end
end
end
if opts and opts.tailwind then
if opts.tailwind == true or opts.tailwind == "normal" or opts.tailwind == "both" then
local tailwind = require "colorizer.tailwind_colors"
-- setup tailwind colors
for k, v in pairs(tailwind.colors) do
for _, pre in ipairs(tailwind.prefixes) do
local name = pre .. "-" .. k
COLOR_NAME_MINLEN = COLOR_NAME_MINLEN and min(#name, COLOR_NAME_MINLEN) or #name
COLOR_NAME_MAXLEN = COLOR_NAME_MAXLEN and max(#name, COLOR_NAME_MAXLEN) or #name
COLOR_MAP[name] = v
COLOR_TRIE:insert(name)
end
end
end
end
TAILWIND_ENABLED = opts.tailwind
end
if #line < i + COLOR_NAME_MINLEN - 1 then
return
end
if i > 1 and byte_is_valid_colorchar(line:byte(i - 1)) then
return
end
local prefix = COLOR_TRIE:longest_prefix(line, i)
if prefix then
-- Check if there is a letter here so as to disallow matching here.
-- Take the Blue out of Blueberry
-- Line end or non-letter.
local next_byte_index = i + #prefix
if #line >= next_byte_index and byte_is_valid_colorchar(line:byte(next_byte_index)) then
return
end
return #prefix, COLOR_MAP[prefix]
end
end
return parser.name_parser
|
