feat: add builtins clear, exec and cat (#208)

* feat: add clear and exec command

* docs: add builtins to changelog

* feat: add cat command
reuse-runner-2
sammy 4 months ago committed by GitHub
parent cc6e5d01dd
commit 0d32a10ca3
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GPG Key ID: 4AEE18F83AFDEB23

@ -75,6 +75,7 @@ disables commands being added to history.
- A new and "safer" event emitter has been added. This causes a performance deficit, but avoids a lot of
random errors introduced with the new Lua runtime (see [#197])
- `bait.release(name, catcher)` removes `handler` for the named `event`
- `exec`, `clear` and `cat` builtin commands
[#197]: https://github.com/Rosettea/Hilbish/issues/197

@ -0,0 +1,25 @@
local commander = require 'commander'
local fs = require 'fs'
commander.register('cat', function(args)
local exit = 0
if #args == 0 then
print [[
usage: cat [file]...]]
end
for _, fName in ipairs(args) do
local f = io.open(fName)
if f == nil then
exit = 1
print(string.format('cat: %s: no such file or directory', fName))
goto continue
end
io.write(f:read '*a')
::continue::
end
io.flush()
return exit
end)

@ -0,0 +1,7 @@
local ansikit = require 'ansikit'
local commander = require 'commander'
commander.register('clear', function()
ansikit.clear(true)
ansikit.cursorTo(0, 0)
end)

@ -0,0 +1,5 @@
local commander = require 'commander'
commander.register('exec', function(args)
hilbish.exec(args[1])
end)
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