[SOLUTION] LCD Numbers (#14)

V

Vance A Heron

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Primary "Ah Ha" was deciding to make the digit
patterns 15 charaters (3 col * 5 rows).

Then simply a matter of determining which segment
to use for each space.

Looking forward to seeing other answers.

Vance

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#! /bin/env ruby

s = ' ' # space
u = '-' # underline
p = '|' # pipe

# use 15 pseudo segments per digit
cmap = [
[ s, u, s, p, s, p, s, s, s, p, s, p, s, u, s ], # 0
[ s, s, s, s, s, p, s, s, s, s, s, p, s, s, s ], # 1
[ s, u, s, s, s, p, s, u, s, p, s, s, s, u, s ], # 2
[ s, u, s, s, s, p, s, u, s, s, s, p, s, u, s ], # 3
[ s, s, s, p, s, p, s, u, s, s, s, p, s, s, s ], # 4
[ s, u, s, p, s, s, s, u, s, s, s, p, s, u, s ], # 5
[ s, u, s, p, s, s, s, u, s, p, s, p, s, u, s ], # 6
[ s, u, s, s, s, p, s, s, s, s, s, p, s, s, s ], # 7
[ s, u, s, p, s, p, s, u, s, p, s, p, s, u, s ], # 8
[ s, u, s, p, s, p, s, u, s, s, s, p, s, u, s ], # 9
]

#process args
sz = 2
if ARGV[0] == '-s'
ARGV.shift
sz = ARGV.shift.to_i
end
sz = 2 if sz < 1 || sz > 10 # sanity check

unless ARGV.length > 0
puts "Usage: $0 [-s <siz>] <number>"
exit
end

#select digits from input string ...
digits = ARGV[0].split(//).find_all{|c| ('0'..'9').include?(c)}

# grid bounds
maxx = (3 + sz) * digits.length - 1
maxy = 2 + sz * 2

(0..maxy).each {|y|
ro = 6 * (y/(sz+1)) + (y%(sz+1) == 0 ? 0 : 3) # row offset
(0..maxx).each {|x|
dndx = x/(3+sz) # which digit in string
t = x%(3+sz) # tmp value
cndx = ro # index into cmap t == 0
cndx = ro + 1 if t > 0 # t in 1..sz
cndx = ro + 2 if t == 1+sz # last column of digit
cndx = 0 if t == 2+sz # spc btwn nums 1st psuedo seg always ' '

print cmap[digits[dndx].to_i][cndx] # char at x,y coord
}
print "\n" # next row
}

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