Linewise splitting of string data is quite trivial with string.gfind()
but handling paragraphs (split at 2 or more newlines, with spaces
ignored) is tougher.
Here's a solution I crafted, and which seems to work. I was
especially delighted by the usability of 'capture position' to get
info where the iterator is going. I believe this trick can be usable
elsewhere, too. Without it, you won't know if your patterns jump over
stuff or not.
Here's the code fragment:
local ret= {}
local last_pos
-- note: '()' captures the position index
--
for s, pos in string.gfind( str, "(.-\n%s*\n)()" ) do -- hey,
this works even with >2 linefeeds! (also linefeed is %s :)
--
--io.stderr:write( "<<<<<<\n"..s.."\n>>>>>>\n" )
last_pos= pos -- remember last position (for tail handling)
Loc_AddParagraph( ret, s )
end
-- The left-overs..
--
Loc_AddParagraph( ret, string.sub( str, last_pos ) )
-ak
