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fix(tohtml): enclose font-family names in quotation marks

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Font-family names must be enclosed in quotation marks to ensure that
fonts are applied correctly when there are spaces in the name.

Fix an issue where multiple fonts specified in `vim.o.guifont` are
inserted as a single element, treating them as a single font.

Support for escaping commas with backslash and ignoring spaces
after a comma.

ref `:help 'guifont'`
This commit is contained in:
yayoyuyu 2024-08-20 23:29:27 +09:00 committed by Justin M. Keyes
parent b40ec083ae
commit e37404f7fe
2 changed files with 70 additions and 33 deletions
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18
runtime/lua/tohtml.lua
View File

@ -1293,9 +1293,25 @@ local function opt_to_global_state(opt, title)
local fonts = {}
if opt.font then
fonts = type(opt.font) == 'string' and { opt.font } or opt.font --[[@as (string[])]]
for i, v in pairs(fonts) do
fonts[i] = ('"%s"'):format(v)
end
elseif vim.o.guifont:match('^[^:]+') then
table.insert(fonts, vim.o.guifont:match('^[^:]+'))
-- Example:
-- Input: "Font,Escape\,comma, Ignore space after comma"
-- Output: { "Font","Escape,comma","Ignore space after comma" }
local prev = ''
for name in vim.gsplit(vim.o.guifont:match('^[^:]+'), ',', { trimempty = true }) do
if vim.endswith(name, '\\') then
prev = prev .. vim.trim(name:sub(1, -2) .. ',')
elseif vim.trim(name) ~= '' then
table.insert(fonts, ('"%s%s"'):format(prev, vim.trim(name)))
prev = ''
end
end
end
-- Generic family names (monospace here) must not be quoted
-- because the browser recognizes them as font families.
table.insert(fonts, 'monospace')
--- @type vim.tohtml.state.global
local state = {

85
test/functional/plugin/tohtml_spec.lua
View File

@ -136,6 +136,53 @@ local function run_tohtml_and_assert(screen, func)
screen:expect({ grid = expected.grid, attr_ids = expected.attr_ids })
end
---@param guifont boolean
local function test_generates_html(guifont)
insert([[line]])
exec('set termguicolors')
local bg = fn.synIDattr(fn.hlID('Normal'), 'bg#', 'gui')
local fg = fn.synIDattr(fn.hlID('Normal'), 'fg#', 'gui')
if guifont then
exec_lua [[
vim.o.guifont="Font,Escape\\,comma, Ignore space after comma"
local outfile = vim.fn.tempname() .. '.html'
local html = require('tohtml').tohtml(0,{title="title"})
vim.fn.writefile(html, outfile)
vim.cmd.split(outfile)
]]
else
exec_lua [[
local outfile = vim.fn.tempname() .. '.html'
local html = require('tohtml').tohtml(0,{title="title",font={ "dumyfont","anotherfont" }})
vim.fn.writefile(html, outfile)
vim.cmd.split(outfile)
]]
end
local out_file = api.nvim_buf_get_name(api.nvim_get_current_buf())
eq({
'<!DOCTYPE html>',
'<html>',
'<head>',
'<meta charset="UTF-8">',
'<title>title</title>',
('<meta name="colorscheme" content="%s"></meta>'):format(api.nvim_get_var('colors_name')),
'<style>',
('* {font-family: %s,monospace}'):format(
guifont and '"Font","Escape,comma","Ignore space after comma"' or '"dumyfont","anotherfont"'
),
('body {background-color: %s; color: %s}'):format(bg, fg),
'</style>',
'</head>',
'<body style="display: flex">',
'<pre>',
'line',
'',
'</pre>',
'</body>',
'</html>',
}, fn.readfile(out_file))
end
describe(':TOhtml', function()
--- @type test.functional.ui.screen
local screen
@ -146,38 +193,12 @@ describe(':TOhtml', function()
exec('colorscheme default')
end)
it('expected internal html generated', function()
insert([[line]])
exec('set termguicolors')
local bg = fn.synIDattr(fn.hlID('Normal'), 'bg#', 'gui')
local fg = fn.synIDattr(fn.hlID('Normal'), 'fg#', 'gui')
exec_lua [[
local outfile = vim.fn.tempname() .. '.html'
local html = require('tohtml').tohtml(0,{title="title",font="dumyfont"})
vim.fn.writefile(html, outfile)
vim.cmd.split(outfile)
]]
local out_file = api.nvim_buf_get_name(api.nvim_get_current_buf())
eq({
'<!DOCTYPE html>',
'<html>',
'<head>',
'<meta charset="UTF-8">',
'<title>title</title>',
('<meta name="colorscheme" content="%s"></meta>'):format(api.nvim_get_var('colors_name')),
'<style>',
'* {font-family: dumyfont,monospace}',
('body {background-color: %s; color: %s}'):format(bg, fg),
'</style>',
'</head>',
'<body style="display: flex">',
'<pre>',
'line',
'',
'</pre>',
'</body>',
'</html>',
}, fn.readfile(out_file))
it('generates html', function()
test_generates_html(false)
end)
it("generates html, respects 'guifont'", function()
test_generates_html(true)
end)
it('expected internal html generated from range', function()