Build executable

[flajr]

Hello, thank you for a nice journey with janet language!

I would like to ask how to build executable from example provided in guides with peg: https://janet-lang.org/docs/peg.html

$ cat main.janet
(def ip-address
   :0-4 (range "04")
 '{:dig (range "09")
   :0-5 (range "05")
           (sequence "25" :0-5)
   :byte (choice
           (sequence "2" :0-4 :dig)
           (sequence "1" :dig :dig)
           (between 1 2 :dig))
   :main (sequence :byte "." :byte "." :byte "." :byte)})
# Test the PEG with valid and invalid IP addresses
(print (peg/match ip-address "192.168.1.1"))    # -> @[]
(print (peg/match ip-address "256.100.50.25"))  # -> nil (invalid byte)
(print (peg/match ip-address "10.0.0.256"))     # -> nil (invalid byte)
(print (peg/match ip-address "127.0.0.1"))      # -> @[]
(print (peg/match ip-address "abc.def.ghi.jkl")) # -> nil (invalid format)
(declare-project

$ cat project.janet
  :description "Example")
  :name "projectip"
(declare-executable
  :entry "main.janet"
  :name "projectip"
  :install true)
  
$ jpm build
generating executable c source build/projectip.c from main.janet...
<array 0x00000D9C5BD0>
<array 0x00000D9C44A0>
error: expected integer key for keyword in range [0, 5), got nil
<array 0x00000D9C5AF0>
error: build fail
  in pdag [/home/flajr/.local/janet-v1.36.0-linux/jpm/dagbuild.janet] (tail call) on line 79, column 23
  in run-main [boot.janet] on line 4432, column 16
  in cli-main [boot.janet] on line 4613, column 17

[sogaiu]

Did you try @ianthehenry's idea of providing a main function mentioned here?

On a side note, the code in the original post above doesn't seem quite right in a few places, but may be that's just randomness of the net? (^^;

[flajr]

Oh, somehow it did not show up in web irc that I used. Thank you very much. It is working.

[sogaiu]

Yay! Good to hear :)