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https://github.com/msva/lua-htmlparser.git
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206f7af3c4
:not(), [att=val], [att!=val], [att|=val], [att*=val], [att~=val], [att^=val], [att$=val] Note that the selection is now returned as a simple Set, breaking the abilty brought in by #8 and #9 tot :select() or () on the selection. Of course, the elements in the returned Set are still ElementNodes that can be selected upon.
137 lines
3.2 KiB
Lua
137 lines
3.2 KiB
Lua
local htmlparser = require("htmlparser")
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local io = require("io")
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local file = io.input("./test.html")
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local text = io.read("*a") file:close()
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local root = htmlparser.parse(text)
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-- print the tree
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local function p(n)
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local space = string.rep(" ", n.level)
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local s = space .. n.name
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for k,v in pairs(n.attributes) do
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s = s .. " " .. k .. "=[[" .. v .. "]]"
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end
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print(s)
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for i,v in ipairs(n.nodes) do
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p(v)
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end
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end
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p(root)
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local function select( s )
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print ""
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print("->", s)
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local sel = root:select(s)
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for element in pairs(sel) do
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print(element.name)
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end
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print(sel:len())
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end
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select("*")
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select("link")
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select("#/contacts/4711")
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select(".chapters")
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select("[href]")
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select("span.firstname")
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select("ul[id]")
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select("#/contacts/4711")
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select("#/contacts/4711 *")
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select("#/contacts/4711 .lastname")
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select("body li[id]")
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select("ul")
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select("ul *")
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select("ul > *")
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select("body [class]")
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select("body > [class]")
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select(".contacts span:not(.firstname)")
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select(":not(a)[href]")
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select("[itemscope]:not([itemprop])")
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select("link[rel='alternate']")
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select("[test2=\"val='2'\"]")
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select("[test5='val5']")
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select("[test6='val\"\"6']")
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select("[itemscope='']")
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select("[itemscope=]")
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select("[itemscope]")
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select("[itemscope][itemprop='address']")
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select("[itemscope][itemprop!='address']")
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select("[itemscope][itemprop!='adres']")
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select("[itemscope][itemprop!='']")
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select("[hreflang|='en']")
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select("[itemprop*='address']")
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select("[words~='two']")
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select("[words~='three']")
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select("[itemprop$='ion']")
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select("[hreflang^='en']")
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print("\nchapters")
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local sel, chapters = root("ol.chapters > li"), {}
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for e in pairs(sel) do
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table.insert(chapters, e:getcontent())
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end
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-- print
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for i,v in ipairs(chapters) do
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print(i, v)
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end
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print("\ncontacts")
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local sel, contacts = root("ul.contacts span[class]"), {}
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for e in pairs(sel) do
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local id = e.parent.parent.id -- li > a > span
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contacts[id] = contacts[id] or {}
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contacts[id][e.classes[1]] = e:getcontent()
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end
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-- print
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for k,v in pairs(contacts) do
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print(k)
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for fk,fv in pairs(v) do
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print(fk, fv)
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end
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end
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print("\nmicrodata")
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local sel, scopes = root("[itemprop]"), {}
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for prop in pairs(sel) do
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if prop.attributes["itemscope"] then goto nextprop end
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local descendantscopes, scope = {}, prop
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while true do
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repeat
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scope = scope.parent
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until scope.attributes["itemscope"]
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if not scope.attributes["itemprop"] then break end
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table.insert(descendantscopes, 1, scope)
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end
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scopes[scope] = scopes[scope] or {}
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local entry = scopes[scope]
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for _,v in ipairs(descendantscopes) do
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entry[v] = entry[v] or {}
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entry = entry[v]
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end
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local k, v = prop.attributes["itemprop"], prop:getcontent()
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entry[k] = v
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::nextprop::
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end
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-- print
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local function printscope(node, table, level)
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level = level or 1
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local scopeprop = node.attributes["itemprop"] or ""
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print(string.rep(" ", level - 1) .. node.attributes["itemtype"], scopeprop)
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for prop,v in pairs(table) do
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if type(prop) == "table" then
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printscope(prop, v, level + 1)
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else
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print(string.rep(" ", level) .. prop .. "=[" .. v .. "]")
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end
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end
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end
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for node,table in pairs(scopes) do
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printscope(node, table)
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end
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