Initial commit. Basic conversion

1 files changed, 75 insertions, 0 deletions

diff --git a/blaunits.rb b/blaunits.rb
new file mode 100755
index 0000000..460df9a
--- /dev/null
+++ b/blaunits.rb
@@ -0,0 +1,75 @@
+#!/usr/bin/ruby
+
+VERSION = "2.0"
+
+begin
+    args = ARGV.dup
+    if args.empty?
+       input = STDIN.gets
+    else
+        input = ""
+        args.each do |arg|
+            if input != ""
+            input = input + " " + arg.dup
+            else
+                input = arg.dup
+            end
+        end
+    end
+    input.strip!
+    if input == "-v" or input ==  "--version"
+        puts "blaconvert v"+VERSION
+        exit
+    end
+    mid = 0
+    from = ""
+    to = ""
+    num = 0
+    words = input.split(" ")
+    for i in 0..words.length-1
+        if words[i] == "in" or words[i] == "to"
+            mid = i
+        end
+    end
+    if words.length == 3 && mid == 0
+        num = Float(words[0])
+        from = words[1]
+        to = words[2]
+    elsif words.length == 2 && mid == 0
+    	num = 1
+    	from = words[0]
+    	to = words[1]
+    elsif mid > 0
+    	for i in 1..mid-1
+    		from += words[i]
+    	end
+    	for i in mid+1..words.length-1
+    		to += words[i]
+    	end
+    	num = Float(words[0])
+    else
+    	puts "Invalid input! Try !convert [amount] [from-unit] to [to-unit] e.g !convert 2 cm to inches"
+    	exit
+    end
+    out = %x(gunits -t1 #{from} #{to})
+    outs = out.split(" ")
+    if outs[0] == "Unknown"
+    	from.upcase!
+    	out = %x(gunits -t1 #{from} #{to})
+	    outs = out.split(" ")
+	    if outs[0] == "Unknown"
+	    	to.upcase!
+	    	out = %x(gunits -t1 #{from} #{to})
+	    	outs = out.split(" ")
+	    	if outs[0] == "Unknown"
+	    		puts out
+	    		exit
+	    	end
+	    end
+    elsif outs[0] == "conformability"
+    	puts "Incompatible units. Can't convert from #{from} to #{to}"
+    	exit
+    end
+    puts "#{num} #{from} = #{num * Float(out)} #{to}"
+	
+end
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