What is the official file name extension for grammars in `parsinomous` DSL?

[KOLANICH]

Hint: it should be unique enough and short enough.

[erikrose]

I've seen .peg used for some other PEG libraries, though there are minor differences in syntax with Parsimonious. Of course, I'm not sure if those libs are all mutually compatible either.

[KOLANICH]

That's why I have asked. I know it is a variant of peg/packrat and in the DSL emiter I reuse a bit of an impl, but here are some differences, for example to Arpeggio and PEG.js:

Arpeggio:

assignmentOperator = " <- "
singleLineCommentStart = "//"
endStatementOperator = ";"

parsimonious:

assignmentOperator = " = "
singleLineCommentStart = "#"
endStatementOperator = ""

PEG.js

assignmentOperator = " = "
endStatementOperator = ""
singleLineCommentStart = "//"

So we need an own extension, and also to cooperate to other projects to unify the DSL syntax.

[erikrose]

Well, "parsimonious" is a long name, so I'm loath to include it verbatim in an extension. "ppeg" immediately comes to mind. Or, if somebody's already using that, "parpeg".

[KOLANICH]

parpeg seems to be too long, I like ppeg better. According to the websites tracking file extensions, it is not taken. Also I have tried to google .ppeg and got only garbage results. It seems like it is not used by anyone.

[erikrose]

Works for me!