Suggestions, fixes, additions and any other types of feedback are welcome. :-)
--[[
HTML Parser in Lua
Inspired by this C# code:
http://www.codeproject.com/useritems/HTML_to_Plain_Text.asp
It does exactly the same as described there.
Only converts offline files.
Distributed under a modified BSD license, see at the end of the file
]]
-- What is the desired newline?
nl = "\n"
filename = "Y:/news.html"
function HTML_ToText (file)
-- Declare variables, load the file. Make tags lowercase.
local text
local f=io.open (file)
if f then
text = f:read ("*a")
f:close()
end
text = string.gsub (text,"(%b<>)",
function (tag)
return tag:lower()
end)
--[[
First we kill the developer formatting (tabs, CR, LF)
and produce a long string with no newlines and tabs.
We also kill repeated spaces as browsers ignore them anyway.
]]
local devkill=
{
["("..string.char(10)..")"] = " ",
["("..string.char(13)..")"] = " ",
["("..string.char(15)..")"] = "",
["(%s%s+)"]=" ",
}
for pat, res in pairs (devkill) do
text = string.gsub (text, pat, res)
end
-- Then we remove the header. We do this by stripping it first.
text = string.gsub (text, "(<%s*head[^>]*>)", "<head>")
text = string.gsub (text, "(<%s*%/%s*head%s*>)", "</head>")
text = string.gsub (text, "(<head>,*<%/head>)", "")
-- Kill all scripts. First we nuke their attribs.
text = string.gsub (text, "(<%s*script[^>]*>)", "<script>")
text = string.gsub (text, "(<%s*%/%s*script%s*>)", "</script>")
text = string.gsub (text, "(<script>,*<%/script>)", "")
-- Ok, same for styles.
text = string.gsub (text, "(<%s*style[^>]*>)", "<style>")
text = string.gsub (text, "(<%s*%/%s*style%s*>)", "</style>")
text = string.gsub (text, "(<style>.*<%/style>)", "")
-- Replace <td> with tabulators.
text = string.gsub (text, "(<%s*td[^>]*>)","\t")
-- Replace <br> with linebreaks.
text = string.gsub (text, "(<%s*br%s*%/%s*>)",nl)
-- Replace <li> with an asterisk surrounded by 2 spaces.
-- Replace </li> with a newline.
text = string.gsub (text, "(<%s*li%s*%s*>)"," * ")
text = string.gsub (text, "(<%s*/%s*li%s*%s*>)",nl)
-- <p>, <div>, <tr>, <ul> will be replaced to a double newline.
text = string.gsub (text, "(<%s*div[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*p[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*tr[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*%/*%s*ul[^>]*>)", nl..nl)
--
-- Nuke all other tags now.
text = string.gsub (text, "(%b<>)","")
-- Replace entities to their correspondant stuff where applicable.
-- C# is owned badly here by using a table. :-P
-- A metatable secures entities, so you can add them natively as keys.
-- Enclosing brackets also get added automatically (capture!)
local entities = {}
setmetatable (entities,
{
__newindex = function (tbl, key, value)
key = string.gsub (key, "(%#)" , "%%#")
key = string.gsub (key, "(%&)" , "%%&")
key = string.gsub (key, "(%;)" , "%%;")
key = string.gsub (key, "(.+)" , "("..key..")")
rawset (tbl, key, value)
end
})
entities =
{
[" "] = " ",
["•"] = " * ",
["‹"] = "<",
["›"] = ">",
["™"] = "(tm)",
["⁄"] = "/",
["<"] = "<",
[">"] = ">",
["©"] = "(c)",
["®"] = "(r)",
-- Then kill all others.
-- You can customize this table if you would like to,
-- I just got bored of copypasting. :-)
-- http://hotwired.lycos.com/webmonkey/reference/special_characters/
["%&.+%;"] = "",
}
for entity, repl in pairs (entities) do
text = string.gsub (text, entity, repl)
end
return text
end
--[[
Copyright (c) 2007, bastya_elvtars
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
to endorse or promote products derived from this code without specific
prior written permission.
THIS CODE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
CODE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
]][/code ]
Wow:
SHOUTcast Administrator
U SHOUTcast D.N.A.S. Status
SHOUTcast Server Version 1.9.5/Linux
Status | Song History | Listen | Stream URL | Admin Login
Current Stream Information
Server Status: Server is currently up and public.
Stream Status: Stream is up at 64 kbps with 117 of 200 listeners (117 unique)
Listener Peak: 176
Average Listen Time: 4h 17m 46s
Stream Title: MAGNATUNE.COM Classical: renaissance and baroque (try before you buy)
Content Type: audio/mpeg
Stream Genre: Classical Instrumental Symphonic Contemporary Renaissance Baroque Medieval
Stream URL: http://magnatune.com/genres/classical/
Stream ICQ:
Stream AIM:
Stream IRC:
Current Song: 06-Cesses mortels de soupirer (Pierre Guedron)-Orinda_spoken
Written by Stephen 'Tag Loomis, Tom Pepper and Justin Frankel
Copyright Nullsoft Inc. 1998-2004[/quote]
bastya where does the text file of this gets stored? or does it stores it at all?
i couldnt find how it work, so i asked.
This does not work with PtokaX. This is just code for incorporation into a proper script.
ok
hello, how to use this script??
Quote from: bastya_elvtars on 20 June, 2007, 20:54:19
This does not work with PtokaX. This is just code for incorporation into a proper script.
Hi all, here comes an updated version. It parses
a tags as well, and collects links as endnotes. It parses http://www.lua.org/ in the following way:
The Programming Language Lua
? about[1] ? news[2] ? download[3] ? documentation[4] ? community[5] ? site map[6] ? portuguęs[7] ? contact[8] ? rss[9]
Lua 5.1.2[10] released, fixing all known bugs in Lua 5.1[11].
Korean translation[12] of Programming in Lua published.
--
[1]http://www.lua.org/about.html
[2]http://www.lua.org/news.html
[3]http://www.lua.org/download.html
[4]http://www.lua.org/docs.html
[5]http://www.lua.org/community.html
[6]http://www.lua.org/map.html
[7]http://www.lua.org/portugues.html
[8]http://www.lua.org/contact.html
[9]http://www.lua.org/rss.html
[10]http://www.lua.org/ftp/lua-5.1.2.tar.gz
[11]http://www.lua.org/bugs.html#5.1.1
[12]http://insightbook.springnote.com/pages/253177Here is the updated snippet:
--[[
HTML Parser in Lua
Inspired by this C# code:
http://www.codeproject.com/useritems/HTML_to_Plain_Text.asp
It does exactly the same as described there.
Only converts offline files.
Distributed under a modified BSD license, see at the end of the file]]
-- What is the desired newline?
nl = "\n"
filename = "E:/luaorg.htm"
function HTML_ToText (file)
-- Declare variables, load the file. Make tags lowercase.
local text
local f=io.open (file)
if f then
if f:seek("end") <= 0 then return end
f:seek("set")
text = f:read ("*a")
f:close()
end
text = string.gsub (text,"(<([^>]-)>)",function (str) return str:lower() end)
--[[
First we kill the developer formatting (tabs, CR, LF)
and produce a long string with no newlines and tabs.
We also kill repeated spaces as browsers ignore them anyway.
]]
local devkill=
{
["("..string.char(10)..")"] = " ",
["("..string.char(13)..")"] = " ",
["("..string.char(15)..")"] = "",
["(%s%s+)"]=" ",
}
for pat, res in pairs (devkill) do
text = string.gsub (text, pat, res)
end
-- Then we remove the header. We do this by stripping it first.
text = string.gsub (text, "(<%s*head[^>]*>)", "<head>")
text = string.gsub (text, "(<%s*%/%s*head%s*>)", "</head>")
text = string.gsub (text, "(<head>,*<%/head>)", "")
-- Kill all scripts. First we nuke their attribs.
text = string.gsub (text, "(<%s*script[^>]*>)", "<script>")
text = string.gsub (text, "(<%s*%/%s*script%s*>)", "</script>")
text = string.gsub (text, "(<script>,*<%/script>)", "")
-- Ok, same for styles.
text = string.gsub (text, "(<%s*style[^>]*>)", "<style>")
text = string.gsub (text, "(<%s*%/%s*style%s*>)", "</style>")
text = string.gsub (text, "(<style>.*<%/style>)", "")
-- Replace <td> and <th> with tabulators.
text = string.gsub (text, "(<%s*td[^>]*>)","\t")
text = string.gsub (text, "(<%s*th[^>]*>)","\t")
-- Replace <br> with linebreaks.
text = string.gsub (text, "(<%s*br%s*%/%s*>)",nl)
-- Replace <li> with an asterisk surrounded by spaces.
-- Replace </li> with a newline.
text = string.gsub (text, "(<%s*li%s*%s*>)"," * ")
text = string.gsub (text, "(<%s*/%s*li%s*%s*>)",nl)
-- <p>, <div>, <tr>, <ul> will be replaced to a double newline.
text = string.gsub (text, "(<%s*div[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*p[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*tr[^>]*>)", nl..nl)
text = string.gsub (text, "(<%s*%/*%s*ul[^>]*>)", nl..nl)
-- Some petting with the <a> tags. :-P
local addresses,c = {},0
text=string.gsub(text,"<%s*a.-href=[\'\"](%S+)[\'\"][^>]*>(.-)<%s*%/*%s*a[^>]->", -- gets URL from a tag, and the enclosed name
function (url,name)
c = c + 1
name = string.gsub (name, "<([^>]-)>","") -- strip name from tags (e. g. images as links)
-- We only consider the URL valid if the name contains alphanumeric characters.
if name:find("%w") then print(url, name, c) table.insert (addresses, {url, name}) return name.."["..#addresses.."]" else return "" end
end)
-- Nuke all other tags now.
text = string.gsub (text, "(%b<>)","")
-- Replace entities to their correspondant stuff where applicable.
-- C# is owned badly here by using a table. :-P
-- A metatable secures entities, so you can add them natively as keys.
-- Enclosing brackets also get added automatically (capture!)
local entities = {}
setmetatable (entities,
{
__newindex = function (tbl, key, value)
key = string.gsub (key, "(%#)" , "%%#")
key = string.gsub (key, "(%&)" , "%%&")
key = string.gsub (key, "(%;)" , "%%;")
key = string.gsub (key, "(.+)" , "("..key..")")
rawset (tbl, key, value)
end
})
entities =
{
[" "] = " ",
["•"] = " * ",
["‹"] = "<",
["›"] = ">",
["™"] = "(tm)",
["⁄"] = "/",
["<"] = "<",
[">"] = ">",
["©"] = "(c)",
["®"] = "(r)",
-- Then kill all others.
-- You can customize this table if you would like to,
-- I just got bored of copypasting. :-)
-- http://hotwired.lycos.com/webmonkey/reference/special_characters/
["%&.+%;"] = "",
}
for entity, repl in pairs (entities) do
text = string.gsub (text, entity, repl)
end
-- text = text..nl..nl..("-"):rep(27)..nl..nl
--
-- for k,v in ipairs (addresses) do
-- text = text.."["..k.."] "..v[1]..nl
-- end
if #addresses > 0 then
text=text..nl:rep(2)..("-"):rep(2)..nl
for key, tbl in ipairs(addresses) do
text = text..nl.."["..key.."]"..tbl[1]
end
end
return text
end
local f=io.open(filename..".txt", "w")
f:write(HTML_ToText (filename))
f:close()
--[[
Copyright (c) 2007, bastya_elvtars
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
to endorse or promote products derived from this code without specific
prior written permission.
THIS CODE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
CODE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
]]