Remove htmlparser dependence (#2) #8

Merged
Aire-One merged 4 commits from feat/#2 into master 2022-09-29 20:14:17 +02:00
9 changed files with 247 additions and 227 deletions

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@ -12,7 +12,6 @@ dependencies = {
"lualogging 1.6.0",
"inspect 3.1.3",
"ansicolors 1.0.2",
"htmlparser 0.3.9",
"web_sanitize 1.3.0",
"penlight 1.13.1",
"luasocket 3.1.0-1",

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@ -0,0 +1,23 @@
local class = require "pl.class"
local List = require "pl.List"
local Function_Info = class.Module_Doc()
function Function_Info:_init()
self.name = ""
self.parameters = List()
self.return_types = List()
end
function Function_Info:append_return_type(return_type)
self.return_types:append(return_type)
end
function Function_Info:append_parameter(name, type)
self.parameters:append {
name = name,
type = type,
}
end
return Function_Info

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@ -0,0 +1,12 @@
local class = require "pl.class"
local List = require "pl.List"
local Module_Doc = class.Module_Doc()
function Module_Doc:_init()
self.constructors = List()
self.methods = List()
self.static_functions = List()
end
return Module_Doc

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@ -0,0 +1,10 @@
local class = require "pl.class"
local Module_Info = class.Module_Info()
function Module_Info:_init(name, uri)
self.name = name
self.uri = uri
end
return Module_Info

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@ -3,19 +3,19 @@ local inspect = require "inspect"
local log = require "logger"
local properties = require "properties"
local scraper = require "scraper"
local generator = require "generator"
-- local generator = require "generator"
log:info(
inspect { message = "Start extraction", base_url = properties.base_url }
)
-- local index = crawler.fetch(properties.base_url .. properties.index_uri)
-- local modules = scraper.get_modules_from_index(
-- index,
-- properties.ignored_modules
-- )
local index = crawler.fetch(properties.base_url .. properties.index_uri)
-- log:info(inspect { modules_found = #modules })
-- local modules =
-- scraper.get_modules_from_index(index, properties.ignored_modules)
local module_infos = scraper.module_info_list.get_modules_from_index(index)
log:info(inspect { modules_found = #module_infos })
-- for i = 1, 1 do -- #modules do
-- local m = modules[i]
@ -25,12 +25,15 @@ log:info(
-- log:info(inspect { items })
-- end
local page =
crawler.fetch(properties.base_url .. "/widgets/wibox.widget.imagebox.html")
local items = scraper.get_doc_from_page(page)
local html =
crawler.fetch(properties.base_url .. "/widgets/wibox.widget.textbox.html")
local module_doc = scraper.module_doc.get_doc_from_page(html)
log:info(inspect { module_doc = module_doc })
-- local items = scraper.get_doc_from_page(page)
-- log:info(inspect { items })
generator.write(
generator.generate_teal(items),
properties.out_directory .. "/test.tl"
)
-- generator.write(
-- generator.generate_teal(items),
-- properties.out_directory .. "/test.tl"
-- )

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@ -1,212 +1,5 @@
local htmlparser = require "htmlparser"
local log = require "logger"
local utils = require "utils"
local scraper = {}
function scraper.get_modules_from_index(html, ignored)
local document = htmlparser.parse(html)
local modules = utils.map(document "#navigation ul > li a", function(node)
return {
name = utils.sanitize_string(node:getcontent()),
uri = node.attributes.href,
module_doc = require "scraper.module_doc",
module_info_list = require "scraper.module_info_list",
utils = require "scraper.utils",
}
end)
local filtered_modules = utils.filter(modules, function(module)
return not utils.has_item(ignored, module.name)
end)
return filtered_modules
end
local function extract_first_node_or_fail(node, selector)
local extracted = node(selector)[1]
if not extracted then
log:error {
message = "Can't find `" .. selector .. "` element!",
node = node:gettext(),
}
error "extract_first_node_or_fail"
end
return extracted
end
local function extract_first_node(node, selector)
local extracted = node(selector)[1]
if not extracted then
return nil
end
return extracted
end
local function extract_inner_floating_text(node)
local html = node:getcontent()
-- Remove inner tags from the html
for _, n in ipairs(node.nodes) do
html = utils.replace(html, n:gettext(), "")
end
return utils.sanitize_string(html)
end
local function extract_item_content_parameter_list(content)
for i, n in ipairs(content.nodes) do
-- The parameters <ul> is the next element after one of these <h3>
if
n.name == "h3"
and utils.has_item(
{ "Parameters:", "Type constraints:", "Arguments" },
utils.sanitize_string(n:getcontent())
)
then
return content.nodes[i + 1]
end
end
return nil
end
local function process_item_header_type(node)
local types_node = extract_first_node(node, "span.summary_type")
if not types_node then
return nil
end
local types_string = string.match(types_node:getcontent(), "%((.-)%)")
or types_node:getcontent()
types_string = utils.replace(types_string, "or", ",")
local splitted = string.gmatch(types_string, "([^,]+)")
local types = {}
for t in splitted do
table.insert(types, utils.sanitize_string(t))
end
return types
end
local function process_item_header(node)
local name_node = extract_first_node_or_fail(node, "strong")
-- Remove starting ":" character on method name
local name = extract_inner_floating_text(name_node):gsub("^:", "")
local type = process_item_header_type(node)
local item_header = {
name = name,
type = type,
}
return item_header
end
local function process_item_content_parameters(node)
local parameter = {}
local name = extract_first_node_or_fail(node, "span.parameter")
parameter.name = utils.sanitize_string(name:getcontent())
local nested_parameters_list = extract_first_node(node, "ul")
if nested_parameters_list then
parameter.type = "table"
parameter.nested_parameters = utils.map(
nested_parameters_list "* > li",
process_item_content_parameters
)
return parameter
end
local types_list = utils.map(node ".type", function(type)
return utils.sanitize_string(type:getcontent())
end)
if #types_list > 0 then
parameter.type = types_list
end
return parameter
end
local function process_item_content(content)
local parameters_list = extract_item_content_parameter_list(content)
local parameters = parameters_list
and utils.map(
parameters_list "* > li",
process_item_content_parameters
)
or {}
local item_content = {
parameters = #parameters > 0 and parameters or nil,
}
return item_content
end
local function process_section_titles(document)
return utils.map(document "h2.section-header", extract_inner_floating_text)
end
local function process_section_items(item)
local headers = utils.map(item "dt", process_item_header)
local contents = utils.map(item "dd", process_item_content)
if #headers ~= #contents then
log:error {
message = "extract_item_content failure: headers and contents don't have the same size",
headers = #headers,
contents = #contents,
}
error "extract_item_content"
end
local item_contents = utils.map(headers, function(header, i)
return {
name = header.name,
type = header.type,
parameters = contents[i].parameters,
}
end)
return item_contents
end
local function process_section_contents(document)
local section_items = document "dl.function"
local section_contents = utils.map(section_items, process_section_items)
return section_contents
end
function scraper.get_doc_from_page(html)
local document = htmlparser.parse(html, 9999)
local sections_titles = process_section_titles(document)
local section_contents = process_section_contents(document)
if #sections_titles ~= #section_contents then
log:error {
message = "get_items_from_page failure: section_titles and section_contents don't have the same size",
sections_titles = #sections_titles,
func = #section_contents,
}
error "get_items_from_page"
end
local doc = utils.map(sections_titles, function(title, i)
return { section = title, items = section_contents[i] }
end)
return doc
end
return scraper

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@ -0,0 +1,84 @@
local Function_Info = require "entities.Function_Info"
local Module_Doc = require "entities.Module_Doc"
local scraper_utils = require "scraper.utils"
local utils = require "utils"
local function extract_function_name(function_name_node)
return function_name_node and (function_name_node.attr.name:gsub(".*:", ""))
end
local function extract_function_return_types(function_return_types_node)
if not function_return_types_node then
return {}
end
local selector = "span.types .type"
local html = function_return_types_node:outer_html()
return scraper_utils.scrape(html, selector, function(node)
return utils.sanitize_string(node:inner_text())
end)
end
local function extract_section_functions(dl)
local query_selectors = {
function_name = "dt a",
function_return_type = "dd ol",
}
return scraper_utils.scrape_tuples(
dl,
{ query_selectors.function_name, query_selectors.function_return_type },
function(nodes)
local function_info = Function_Info()
function_info.name =
extract_function_name(nodes[query_selectors.function_name])
function_info.return_types = extract_function_return_types(
nodes[query_selectors.function_return_type]
)
return function_info
end
)
end
local module = {}
function module.get_doc_from_page(html)
local nodes = scraper_utils.extract_nodes(html, {
"h2.section-header",
"dl.function",
})
if #nodes:get "h2.section-header" ~= #nodes:get "dl.function" then
error "The list aren't the same size!"
end
local module_doc = Module_Doc()
for i, h2 in ipairs(nodes:get "h2.section-header") do
local section_name = utils.sanitize_string(h2:inner_text())
local dl_html = nodes:get("dl.function")[i]:outer_html()
if section_name == "Constructors" then
module_doc.constructors = extract_section_functions(dl_html)
elseif section_name == "Static module functions" then
module_doc.static_functions = extract_section_functions(dl_html)
elseif section_name == "Object properties" then
print "Not implemented: Deprecated object properties"
elseif section_name == "Deprecated object properties" then
print "Not implemented: Deprecated object properties"
elseif section_name == "Object methods" then
module_doc.methods = extract_section_functions(dl_html)
elseif section_name == "Signals" then
print "Not implemented: Signals"
else
error("Unknown section name: " .. section_name)
end
end
return module_doc
end
return module

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@ -0,0 +1,28 @@
local Module_Info = require "entities.Module_Info"
local scraper_utils = require "scraper.utils"
local utils = require "utils"
local module = {}
local MODULE_A_TAG_QUERY_SELECTOR = "div#navigation ul li a"
local function extract_module_info(node)
local name = utils.sanitize_string(node:inner_text())
local uri = node.attr.href
if not (name and uri) then
error("Can't extract module info from node: " .. node:outer_html())
end
return Module_Info(name, uri)
end
function module.get_modules_from_index(html)
return scraper_utils.scrape(
html,
MODULE_A_TAG_QUERY_SELECTOR,
extract_module_info
)
end
return module

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@ -0,0 +1,68 @@
local List = require "pl.List"
local log = require "logger"
local Map = require "pl.Map"
local scanner = require "web_sanitize.query.scan_html"
local tablex = require "pl.tablex"
local scraper_utils = {}
function scraper_utils.scrape(html, query_selector, extract_callback)
local ret = {}
scanner.scan_html(html, function(stack)
if stack:is(query_selector) then
local node = stack:current()
local success, info = pcall(extract_callback, node)
if not success then
log:error { message = info }
else
table.insert(ret, info)
end
end
end)
return ret
end
function scraper_utils.extract_nodes(html, query_selectors)
local siblings = Map()
tablex.foreach(query_selectors, function(query_selector)
siblings:set(query_selector, List())
end)
scanner.scan_html(html, function(stack)
tablex.foreach(query_selectors, function(query_selector)
if stack:is(query_selector) then
siblings:get(query_selector):append(stack:current())
end
end)
end)
return siblings
end
function scraper_utils.scrape_tuples(html, query_selectors, extract_callback)
local nodes = scraper_utils.extract_nodes(html, query_selectors)
local ret = {}
for i = 1, #nodes:get(query_selectors[1]) do
local node_list = {}
tablex.foreach(query_selectors, function(query_selector)
node_list[query_selector] = nodes:get(query_selector)[i] or nil
end)
local success, info = pcall(extract_callback, node_list)
if not success then
log:error { message = info }
else
table.insert(ret, info)
end
end
return ret
end
return scraper_utils