Return text as character from R6 object

[callistosp]

I would like to access the contents of a parsed control stream as a character object. Right now it prints the text to the console, but it is unclear how to directly access the text itself.

The use case for this type of pattern would to be creating child models from a template control stream (e.g. for an SSE). This would also be necessary for conversion of NONMEM files to mrgsolve models.

[kyleam]

For a record object, you can use the $format() method (or format()) to get it as a string.

ctl <- nmrec::parse_ctl(nmrec::nmrec_examples[["bayes1"]])
ctl$records[[20]]
#> $EST METHOD=BAYES INTERACTION FILE=example1.txt NBURN=10000
#>      NITER=10000 PRINT=100 NOPRIOR=0
ctl$records[[20]]$format()
#> [1] "$EST METHOD=BAYES INTERACTION FILE=example1.txt NBURN=10000\n     NITER=10000 PRINT=100 NOPRIOR=0\n\n"
format(ctl$records[[20]])
#> [1] "$EST METHOD=BAYES INTERACTION FILE=example1.txt NBURN=10000\n     NITER=10000 PRINT=100 NOPRIOR=0\n\n"