alex789
1
I’m just starting out with ruby.
I’m trying to make an array of arrays containing [a pattern, a string,
a function]
Patterns and strings went fine but when I put in a function ruby tries
to eval it and complains about not getting right number of arguments.
Is there any way to escape a method so that you can put it in a list
or pass it as an argument to another function?
pats = [
[/:BEGIN:(.)/, “DTSTART”, Df.datestr2time ],
[/:DUE:(.)/, “DUE”, Df.datestr2time]
]
alex
alex789
2
formatmethod = Df.method(:datestr2time)
On Mon, 16 Jan 2006, Alex P. wrote:
pats = [
[/:BEGIN:(.)/, “DTSTART”, Df.datestr2time ],
[/:DUE:(.)/, “DUE”, Df.datestr2time]
]
yes. but you don’t need to, simply store the name of the method and use
‘send’:
harp:~ > cat a.rb
table =
[%r/:BEGIN:(.)/, “DTSTART”, “datestr2time”],
[%r/:DUE:(.)/, “DUE”, “datestr2time”]
mock-up
class Df
def self::datestr2time string
p string
end
end
txt = <<-txt
:BEGIN:
:DUE:
txt
txt.each do |line|
table.each do |dispatch|
pat, string, method = dispatch
if pat.match line
Df::send method, string
end
end
end
harp:~ > ruby a.rb
“DTSTART”
“DUE”
regards.
-a