Section collapsing issues

[kylebutts]

The language server has preferences over the way sections collapse (namely, collapse up to a set of 2 blank lines:

languageserver/R/section.R

Line 19 in 7f7605b

nline_to_break_succession <- 2L

and

languageserver/R/section.R

Lines 319 to 337 in 7f7605b

	#' two or more blank lines out of block ranges should break sections succession
	#' @noRd
	extract_document_section_breaks <- function(line_numbers, line_content) {
	blank_lines <- line_numbers[
	grepl("^\\s*$", line_content, perl = TRUE)
	]
	if (!length(blank_lines)) {
	return(NULL)
	}
	# make continuous blank lines as groups
	groups <- split(blank_lines, factor(cumsum(diff(c(0L, blank_lines)) > 1L)))
	# how many lines should break off section succession ? ( 2L )
	groups <- groups[lengths(groups) >= nline_to_break_succession]
	if (length(groups)) {
	vapply(groups, min, integer(1L))
	} else {
	NULL
	}
	}

I'm wondering if changing this could be part of the available settings? I personally, like extra whitespace, so it would be nice to configure. I would be happy to open a PR. I think the steps would be:

1. Add nline_to_break_succession option to S6 option Settings
2. In section.R, use lsp_settings$get("nline_to_break_succession") here:

   languageserver/R/section.R

   Line 19 in 7f7605b

   nline_to_break_succession <- 2L

[renkun-ken]

It is perfectly okay to send a PR on this if you find it useful.