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feat(image.doc): allow configuring the header for latex / typst inline in the document. Closes #1303

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Folke Lemaitre 2025-02-19 23:06:49 +01:00
parent 1c6f2d66a6
commit bde3adddc7
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GPG key ID: 41F8B1FBACAE2040
3 changed files with 39 additions and 4 deletions
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22
lua/snacks/image/doc.lua
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@ -26,7 +26,8 @@ M.transforms = {
img.content = ([[
#set page(width: auto, height: auto, margin: (x: 2pt, y: 2pt))
#set text(size: 12pt, fill: rgb("%s"))
%s]]):format(fg, img.content)
%s
%s]]):format(fg, M.get_header(ctx.buf), img.content)
end,
latex = function(img, ctx)
if not img.content then
@ -57,11 +58,12 @@ M.transforms = {
\documentclass[preview,border=2pt,varwidth,12pt]{standalone}
\usepackage{%s}
\begin{document}
%s
{ \%s \selectfont
\color[HTML]{%s}
%s}
\end{document}
]]):format(table.concat(packages, ", "), fs, fg:upper():sub(2), content)
]]):format(table.concat(packages, ", "), M.get_header(ctx.buf), fs, fg:upper():sub(2), content)
end,
}
@ -69,6 +71,22 @@ local hover ---@type snacks.image.Hover?
local uv = vim.uv or vim.loop
local dir_cache = {} ---@type table<string, boolean>
---@param buf number
function M.get_header(buf)
local header = {} ---@type string[]
local in_header = false
for _, line in ipairs(vim.api.nvim_buf_get_lines(buf, 0, -1, false)) do
if line:find("snacks:%s*header%s*start") then
in_header = true
elseif line:find("snacks:%s*header%s*end") then
in_header = false
elseif in_header then
header[#header + 1] = line
end
end
return table.concat(header, "\n")
end
---@param str string
function M.url_decode(str)
return str:gsub("+", " "):gsub("%%(%x%x)", function(hex)