A TOML parser for odin-lang.

import "toml"
import "toml/dates"

main :: proc() {
  using toml
  
  section, err1 := parse_file("toml/example.toml", context.temp_allocator)
  default, err2 := parse(#load("toml/example.toml"), "example.toml", context.temp_allocator)

  if print_error(err2) do return
  print_error(err1)

  print_table(section)
  
  inf := get_f64(section, "infinity") or_else get_f64_panic(default, "infinity")
  num := get(i64, section, "num") or_else 5

  str := get(string, section, "multiline_str") or_else "bad"

  date := get_date(section, "letsnot", "k", "l", "m", "n") or_else dates.Date {}
  
  list := get_panic(^List, section, "o", "p")

}

Simply,

cd your_project
git clone github.com/Up05/toml_parser toml

And import "toml"

Although, you can simply use or_else or just val, ok := get(.... I propose, that one could:

1. load a configuration at runtime, by using parse_file
2. load their configuration at compile time by using parse_data(#load(same_file), "filename.toml")
3. first get a value from the runtime config by using get then, if need be, (via or_else) fallback to the compile-time config and use get_panic.

format_error :: proc(err: Error, allocator := context.temp_allocator) -> (message: string, fatal: bool) 

Format's the error and returns it as well as whether it was fatal or not.

print_error :: proc(err: Error) -> (fatal: bool)

Format's and prints the specified error to stdout. May use format_error to only get the error message.

parse_file :: proc(filename: string, allocator := context.allocator) -> (section: ^Table, err: Error) 

Parses the specified toml file. Returns the root table & an error, which can then be nicely printed with print_error.

parse_data :: proc(data: []u8, original_filename := "untitled data", allocator := context.allocator) -> (section: ^Table, err: Error)  

Parses the given data. Is meant to be used with #load(file).

parse :: proc(data: string, original_file: string, allocator := context.allocator) -> (tokens: ^Table, err: Error) 

Parses the TOML in a string. Underlying function called by parse_data and parse_file.

get :: proc($T: typeid, section: ^Table, path: ..string) -> (val: T, ok: bool) // where T is in Type union

Retrieves and type checks the value at path. Careful, path is not specified by dots! Works on any table.

get_panic :: proc($T: typeid, section: ^Table, path: ..string) -> T // where T is in Type union

Retrieves and type checks the value at path. Careful, path is not specified by dots! Works on any table. Crashes if not ok.

There are also get_<type> & get_<type>_panic functions for all possible types in the Type union.
Here are the variants: { table, list, string, bool, i64, f64, date }

Generally replaced by fmt.print and fmt.printf("%#v\n", ....

print_table :: proc(section: ^Table, level := 0)

A while back Odin used to hang when printing a map pointer.
I'm pretty sure it does not anymore.

print_value :: proc(v: Type, level := 0) 

deep_delete :: proc(type: Type, allocator := context.allocator) -> (err: runtime.Allocator_Error)

Recursively frees parser's output

delete_error :: proc(err: ^Error)

Simply, frees the error.
Filename is not freed, because the parser only slices it.

@private
main :: proc()

This is here for toml-test. It takes in the TOML from stdin, parses it, marshal's it to JSON and prints the JSON to stdout. Unless there was an error, in which case the program does not print anything and only exits with exit code 1.

Some tests fail because of how odin formats floats & non-printable characters, cba to fix that and it doesn't matter.

main.odin       # an internal file for testing
toml.odin       # the main user-facing file
misc.odin       # a couple miscellaneous functions

tokenizer.odin  # rips text apart by space and special symbols (string -> [] string)
validator.odin  # checks whether given TOML is valid or not    ([] string -> Error?)
parser.odin     # parses tokens into the recursive Type union  ([] string -> Type)

tests/          # odin core:testing tests (currently, there is 1...)
dates/          # my small RFC3339 date parsing library
mod.pkg         # package info for the odin package website (can't find it right now...)