local http = require("socket.http")
function makeRequest(artist, song)
local webPage, statusCode =
http.request("
http://www.metrolyrics.com/" .. song .. "-lyrics-" .. artist
. ".html")
if statusCode == 200 then return webPage else print("Música não
encontrada") os.exit() end
end
function concat(str)
local fstr = ''
for ech in string.gmatch(str,"%Z") do
if ech == " " then
fstr = fstr .. "-"
else
fstr = fstr .. ech
end
end
return string.lower(fstr)
end
function textOnly(verses)
local txt = ''
local ftxt = ''
for initP in string.gmatch(verses, ">%Z-<") do
txt = txt .. initP
end
for tag in string.gmatch(txt, "%Z") do
if tag == "<" then
ftxt = ftxt .. "\n"
elseif tag == ">" then
ftxt = ftxt .. ""
else
ftxt = ftxt .. tag
end
end
return ftxt
end
function noEnter(text)
local ans = ''
for n in string.gmatch(text, "%Z%Z") do
if n == "\n\n" then
ans = ans .. "\n"
else
ans = ans .. n
end
end
return ans
end
function parseLyrics(entPage)
local verses = ''
for verse in string.gmatch(entPage, "<p class='verse'>%Z-</p>") do
verses = verses .. verse
end
return noEnter(textOnly(verses))
end
io.write("Insira o artista: ")
local artist = io.read()
io.write("Insira a música: ")
local song = io.read()
if artist and song then
print(parseLyrics(makeRequest(concat(artist), concat(song))))
end
