Today I'll be posting up another programming challenge. This one will be slightly more difficult than the last, so I hope you're ready. This one will probably be more fun as well since it's a challenge I thought of completely.
I'll get straight to the point.
Criteria:
-Define a function or procedure that takes as input a string that you will convert to arbitrary "rainbow" BBCode. Optionally, throw in an option to specify the size of your generated output.
Subjective difficulty: Easy.
As a bonus, reward is 3x +rep from me.
As before, post your code in this thread (preferably enclosed in [spoiler] tags by convention).
No deadline. Feel free to do this anytime.
Any programming language of your choice can be used.
My solution in Lua:
Spoiler:
PHP Code:
#!/usr/bin/env lua
-------------------------------------------------------------- -- @Description: Pedagogical Lua script to color code your text using arbitrary "rainbow" BBCode -- @Author: Forget Me Not (The Unintelligible) -- @Contact: xxprotozoid@live.com
-- @Version: v0.1
-- @Remarks: Primarily intended for Windows use. However, due to the fact that it's distributed free, -- as in freedom, you are able to safely modify and re-distribute this script free of charge -- as long as it abides by the GPLv2 terms.
-- @License: GNU General Public License v2 (GPLv2) - http://www.gnu.org/copyleft/gpl.html --------------------------------------------------------------
--- Returns Lua table from tokenized string -- @param s Lua string to pass as input -- @usage tokenize("I am a string") local function tokenize(s) local t = {}
for i = 1,#s do t[i] = s:sub(i, i) end
return t end
--- Returns string color coded in rainbow BBCode and corresponding size -- @param s Lua string to pass as input -- @param size Lua number for the size of the text to output -- @usage color_code("Lorem ipsum dolor sit amet, consectetur, adipisci velit.") local function color_code(s, size) local bool, err = assert(type(s) == "string", "Invalid data supplied.") -- If given data not string, throw an exception & terminate our function
if (not bool) then return end
local char_array = tokenize(s) local buff = ""
for i = 1, #char_array do -- Create a matrix of hues of the different colors of the rainbow -- Each row is as follows: Red, Orange, Yellow, Green, Blue, Purple local color_matrix = { "#C11B17", "#F87A17", "#FFFF00", "#00FF00", "#2B60DE","#893BFF", "#F63817", "#E78E17", "#FFFC17", "#5EFB6E", "#1531EC", "#8E35EF" }
local ran_num = math.random(1, #color_matrix) -- Create a pseudo-random number ranging from 1 to the size of the color matrix local color = color_matrix[ran_num]
if (string.find(char_array[i], ' ')) then whitespace = true end
if (not whitespace) then -- For resource conservation, we won't enclose whitespace in BBCode bbcode_str = "[color=" .. color .. "]" .. char_array[i] .. "[/color]" end
if (whitespace) then -- If whitespace is in our token we'll simply leave it as is. Else we wrap it up with BBCode buff = buff .. char_array[i] else buff = buff .. bbcode_str end
whitespace = false end
if (not size) then size = 3 end -- If no size parameter passed, defaults to 3
buff = "[size=" .. tostring(size) .. "]".. buff .. "[/size]" -- Finalize process by prepending and appending size tags to our string
return buff, #buff end
---------------------------------------------- --- Main program ----------------------------------------------
local function main() io.write("Enter your text to be color-coded: ") -- Prompt user to feed input to program for our process input_text = io.read() -- Wait for input from the STDIN/STDOUT stream
-- Rinse, repeat io.write("Now enter your size attribute for the text: ") input_size = io.read()
print("Now initializing the process...\n") -- Print out user-friendly message while the process unfolds under the hood
result = color_code(input_text, input_size)
clipboard.settext(result)
print("Done! Your legendary rainbow text has been copied to your clipboard.\n\nPress enter to exit.\n") -- Done! io.read() -- Idle end
Result: Hello my name is Alex/Artificial. I'm just testing the convert function.
Sitting in a lecture trying to pay attention while coding it. I just realised I haven't picked up anything in the last 10 minutes! Thanks for disrupting my education! lol
Result: Hello my name is Alex/Artificial. I'm just testing the convert function.
Sitting in a lecture trying to pay attention while coding it. I just realised I haven't picked up anything in the last 10 minutes! Thanks for disrupting my education! lol
