Feature request: function to return data frame of keys in template #33
Description
It would be nice to have a function that generates a data frame of keys for a given template for programmatic generation of input data. I'm thinking something along the lines of:
template <-
"{{#dat}}
count: {{count}}, spray: {{spray}}\n
{{/dat}}"
whisker::getKeys(template)
#> rawkey first last key type
#> 1 #dat 1 8 dat #
#> 2 count 20 28 count
#> 3 spray 38 46 spray
#> 4 /dat 49 56 dat /FWIW, the functionality in {whisker} already exists, it just needs to be exposed:
template <-
"{{#dat}}
count: {{count}}, spray: {{spray}}\n
{{/dat}}"
f <- whisker:::parseTemplate(template)
get("key", envir = environment(f))
#> rawkey first last key type
#> 1 #dat 1 8 dat #
#> 2 count 20 28 count
#> 3 spray 38 46 spray
#> 4 /dat 49 56 dat /Created on 2020-09-10 by the reprex package (v0.3.0)