instance method
SyntaxSuggest::AroundBlockScan#scan_while
scan_while() { |line| ... }
lib/syntax_suggest/around_block_scan.rb
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# File tmp/rubies/ruby-4.0.0/lib/syntax_suggest/around_block_scan.rb, line 88
def scan_while
stop_next_up = false
stop_next_down = false
@scanner.scan(
up: ->(line, kw_count, end_count) {
next false if stop_next_up
next true if @force_add_hidden && line.hidden?
next true if @force_add_empty && line.empty?
if @stop_after_kw && kw_count > end_count
stop_next_up = true
end
yield line
},
down: ->(line, kw_count, end_count) {
next false if stop_next_down
next true if @force_add_hidden && line.hidden?
next true if @force_add_empty && line.empty?
if @stop_after_kw && end_count > kw_count
stop_next_down = true
end
yield line
}
)
self
end
Main work method
The scan_while method takes a block that yields lines above and below the block. If the yield returns true, the @before_index or @after_index are modified to include the matched line.
In addition to yielding individual lines, the internals of this object give a mini DSL to handle common situations such as stopping if we’ve found a keyword/end mis-match in one direction or the other.