Single file containing a list of items

[probablySophie]

Hi, I was hoping to read a file

A super simple abstraction of the TOML file I'm hoping to read

[[item-identifier]]
key1 = date1
key2 = value2

[[item-identifier]]
key1 = date2
ley2 = value4

and so on...

The line of code I currently have for parsing

let Ok(extracted) = toml::from_str::<T>(&file_string)

Everything's fine when reading from a file containing a single item's key/value pairs and no [[item-identifier]]

key1 = date1
key2 = value2

Its just when I want to add identifiers that everything falls apart.

Error message

TOML parse error at line 1, column 1
  |
1 | [[item-identifier]]
  | ^
missing field `date`

I know I can just file_contents.split("[[item-identifier]]") but I was hoping for an idiomatic/expandable way of doing it.
Possibly even with hopes to have multiple different types of item & identifier in the same file.

(And the reason I want to do this specifically is that I'm following some specification docs and I'd really rather not create a different file layout)

Thank you!

[epage]

toml::from_str is parsing the TOML into a specific schema that is defined using Rust types in serde. I'd need a reproduction case that included both the schema and the data to be able to answer.

[probablySophie]

I have solutions that do exactly what past me wanted!

Reading multiple items from a file:

Instead of trying to read a Vec<item-identifier>, create a parent Struct:

#[derive(Serialize, Deserialize)]
struct Parent
{
    item_identifier: Vec<item_identifier>
    // Assuming that the struct item_identifier exists elsewhere
}

And then just read toml::from_str::<Parent>(&file_string)!

Past me was also about to run head-first into item-identifier vs item_identifier (the first not being a valid name), and that can be solved with

#[derive(Serialize, Deserialize)]
#[serde(rename_all="kebab-case")]
struct Parent
{
    items: Vec<item_identifier>
}