mirror of https://github.com/20kdc/OC-KittenOS.git
71 lines
1.7 KiB
Lua
71 lines
1.7 KiB
Lua
-- This is released into the public domain.
|
|
-- No warranty is provided, implied or otherwise.
|
|
|
|
local fmt
|
|
fmt = {
|
|
pad = function (t, len, centre, cut)
|
|
local l = unicode.len(t)
|
|
local add = len - l
|
|
if add > 0 then
|
|
if centre then
|
|
t = (" "):rep(math.floor(add / 2)) .. t .. (" "):rep(math.ceil(add / 2))
|
|
else
|
|
t = t .. (" "):rep(add)
|
|
end
|
|
end
|
|
if cut then
|
|
t = unicode.sub(t, 1, len)
|
|
end
|
|
return t
|
|
end,
|
|
fmtText = function (text, w)
|
|
local nl = text:find("\n")
|
|
if nl then
|
|
local base = text:sub(1, nl - 1)
|
|
local ext = text:sub(nl + 1)
|
|
local baseT = fmt.fmtText(base, w)
|
|
local extT = fmt.fmtText(ext, w)
|
|
for _, v in ipairs(extT) do
|
|
table.insert(baseT, v)
|
|
end
|
|
return baseT
|
|
end
|
|
if unicode.len(text) > w then
|
|
local lastSpace
|
|
for i = 1, w do
|
|
if unicode.sub(text, i, i) == " " then
|
|
-- Check this isn't an inserted space (unicode safe text format)
|
|
local ok = true
|
|
if i > 1 then
|
|
if unicode.charWidth(unicode.sub(text, i - 1, i - 1)) ~= 1 then
|
|
ok = false
|
|
end
|
|
end
|
|
if ok then
|
|
lastSpace = i
|
|
end
|
|
end
|
|
end
|
|
local baseText, extText
|
|
if not lastSpace then
|
|
-- Break at a 1-earlier boundary
|
|
local wEffect = w
|
|
if unicode.charWidth(unicode.sub(text, w, w)) ~= 1 then
|
|
-- Guaranteed to be safe, so
|
|
wEffect = wEffect - 1
|
|
end
|
|
baseText = unicode.sub(text, 1, wEffect)
|
|
extText = unicode.sub(text, wEffect + 1)
|
|
else
|
|
baseText = unicode.sub(text, 1, lastSpace - 1)
|
|
extText = unicode.sub(text, lastSpace + 1)
|
|
end
|
|
local full = fmt.fmtText(extText, w)
|
|
table.insert(full, 1, fmt.pad(baseText, w))
|
|
return full
|
|
end
|
|
return {fmt.pad(text, w)}
|
|
end
|
|
}
|
|
return neo.wrapMeta(fmt)
|