parse-result

[Catonano]

Hello,

I'm reading the parsers tuorial in Zelpir's examples repository

I don't understand where the procedure "parse-result" is defined

The first occurrence of it is on line 29

https://gitlab.com/zelphir-kaltstahl-projects/guile-scheme-tutorials-and-examples/blob/dev/parsing/parser-combinators/tutorial.scm#L29

Also I see there's a "(parser-combinators)" module used
But where is it ?

I didn't try to actually load it end evaluate it yet, I'm just reading it

Thanks in advance