Split a character string based on change of character: Difference between revisions

<pre>g, HHH, 5, YY, ++, ///, \</pre>

=={{header|Lua}}==

Note that the backslash must be quoted as a double backslash as Lua uses C-like escape sequences.

<lang Lua>function charSplit (inStr)

local outStr, nextChar = inStr:sub(1, 1)

for pos = 2, #inStr do

nextChar = inStr:sub(pos, pos)

if nextChar ~= outStr:sub(#outStr, #outStr) then

outStr = outStr .. ", "

end

outStr = outStr .. nextChar

end

return outStr

end

print(charSplit("gHHH5YY++///\\"))</lang>

{{out}}