131 lines
2.4 KiB
Lua
131 lines
2.4 KiB
Lua
local M = {}
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M.proto = "http"
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local function isHttp()
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return M.proto == "http"
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end
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local function isGemini()
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return M.proto == "gemini"
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end
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local function esc(s)
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s = s or ""
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s = s:gsub("&", "&")
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s = s:gsub("<", "<")
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s = s:gsub(">", ">")
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return s
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end
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M.p = function(s)
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s = s or ""
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if isHttp() then
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return "<p>" .. esc(s) .. "</p>"
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elseif isGemini() then
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return s
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end
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end
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M.h = function(level, s)
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level = tonumber(level) or 1
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if level < 1 then level = 1 end
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if level > 6 then level = 6 end
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s = s or ""
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if isHttp() then
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return "<h" .. level .. ">" .. esc(s) .. "</h" .. level .. ">"
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elseif isGemini() then
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return string.rep("#", level) .. " " .. s
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end
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end
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M.codeblock = function(s)
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s = s or ""
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if isHttp() then
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return "<pre><code>" .. esc(s) .. "</code></pre>"
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elseif isGemini() then
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return "```\n" .. s .. "\n```"
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end
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end
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M.inline = function(s)
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s = s or ""
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if isHttp() then
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return "<code>" .. esc(s) .. "</code>"
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elseif isGemini() then
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return "`" .. s .. "`"
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end
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end
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M.link = function(text, url)
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text = text or ""
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url = url or ""
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if isHttp() then
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return "<a href=\"" .. esc(url) .. "\">" .. esc(text) .. "</a>"
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elseif isGemini() then
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return "=> " .. url .. " " .. text
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end
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end
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M.list = function(items, ordered)
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items = items or {}
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if isHttp() then
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local tag = ordered and "ol" or "ul"
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local out = "<" .. tag .. ">"
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for _, v in ipairs(items) do
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out = out .. "<li>" .. esc(v) .. "</li>"
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end
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out = out .. "</" .. tag .. ">"
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return out
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elseif isGemini() then
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local out = {}
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for i, v in ipairs(items) do
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if ordered then
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table.insert(out, i .. ". " .. v)
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else
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table.insert(out, "* " .. v)
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end
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end
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return table.concat(out, "\n")
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end
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end
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M.blockquote = function(s)
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s = s or ""
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if isHttp() then
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return "<blockquote>" .. esc(s) .. "</blockquote>"
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elseif isGemini() then
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return "> " .. s
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end
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end
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M.rule = function()
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if isHttp() then
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return "<hr />"
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elseif isGemini() then
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return "---"
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end
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end
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M.image = function(alt, src)
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alt = alt or ""
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src = src or ""
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if isHttp() then
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return "<img src=\"" .. esc(src) .. "\" alt=\"" .. esc(alt) .. "\" />"
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elseif isGemini() then
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return "=> " .. src .. " " .. alt
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end
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end
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M.file = function(text, url)
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text = text or ""
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url = url or ""
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if isHttp() then
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return "<a href=\"" .. esc(url) .. "\" download>" .. esc(text) .. "</a>"
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elseif isGemini() then
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return "=> " .. url .. " " .. text
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end
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end
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return M
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