Specify JEL classification codes for a manuscript

Creates a validated list of JEL codes for use in manuscript metadata. Each code must match the pattern [A-Z][0-9]{1,2} (one uppercase letter followed by 1 or 2 digits).

Usage

jel_codes(...)

Arguments

...

One or more JEL code strings (e.g., "F10", "L5").

Value

An S3 object of class c("typstR_jel", "list").

Examples

jel_codes("F10", "L52")
#> <typstR_jel> [F10, L52]