protected
- ## do any specialized parsing
- ## returns nil and flashes error message if parsing failed
+ class ParseError < StandardError; end
+
+ ## parse a query string from the user. returns a query object and a set of
+ ## extra flags; both of these are meant to be passed to #build_query.
+ ##
+ ## raises a ParseError if something went wrong.
def parse_user_query_string s
extraopts = {}
end
if $have_chronic
- chronic_failure = false
subs = subs.gsub(/\b(before|on|in|during|after):(\((.+?)\)\B|(\S+)\b)/) do
- break if chronic_failure
field, datestr = $1, ($3 || $4)
- realdate = Chronic.parse(datestr, :guess => false, :context => :past)
+ realdate = Chronic.parse datestr, :guess => false, :context => :past
if realdate
case field
when "after"
"date:(<= #{sprintf "%012d", realdate.end.to_i}) date:(>= #{sprintf "%012d", realdate.begin.to_i})"
end
else
- BufferManager.flash "Can't understand date #{datestr.inspect}!"
- chronic_failure = true
+ raise ParseError, "can't understand date #{datestr.inspect}"
end
end
- subs = nil if chronic_failure
end
## limit:42 restrict the search to 42 results
extraopts[:limit] = lim.to_i
''
else
- BufferManager.flash "Can't understand limit #{lim.inspect}!"
- subs = nil
+ raise ParseError, "non-numeric limit #{lim.inspect}"
end
end
- if subs
+ begin
[@qparser.parse(subs), extraopts]
- else
- nil
+ rescue Ferret::QueryParser::QueryParseException => e
+ raise ParseError, e.message
end
end
mode = SearchResultsMode.new qobj, extraopts
BufferManager.spawn "search: \"#{short_text}\"", mode
mode.load_threads :num => mode.buffer.content_height
- rescue Ferret::QueryParser::QueryParseException => e
- BufferManager.flash "Couldn't parse query."
+ rescue Index::ParseError => e
+ BufferManager.flash "Problem: #{e.message}!"
end
end
end