mirror of
https://github.com/koreader/koreader.git
synced 2025-08-10 00:52:38 +00:00
06a8a33d39
* Adds a generic HTML widget modeled after the text widget, and HTML dictionary support. HTML dictionaries can have their own CSS (for X.ifo it must be X.css). The base CSS just resets the margin and sets the font. Note that the widget doesn't handle links, that wasn't needed for the dictionary. Closes <https://github.com/koreader/koreader/issues/1776>. * Show tag stripped HTML if the dictionary entry isn't valid HTML * Simulate the normal <br/> behavior * Bump base
638 lines
25 KiB
Lua
638 lines
25 KiB
Lua
local ConfirmBox = require("ui/widget/confirmbox")
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local DataStorage = require("datastorage")
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local Device = require("device")
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local DictQuickLookup = require("ui/widget/dictquicklookup")
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local InfoMessage = require("ui/widget/infomessage")
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local InputContainer = require("ui/widget/container/inputcontainer")
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local JSON = require("json")
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local KeyValuePage = require("ui/widget/keyvaluepage")
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local LuaData = require("luadata")
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local Trapper = require("ui/trapper")
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local UIManager = require("ui/uimanager")
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local logger = require("logger")
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local util = require("util")
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local _ = require("gettext")
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local Screen = Device.screen
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local T = require("ffi/util").template
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-- We'll store the list of available dictionaries as a module local
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-- so we only have to look for them on the first :init()
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local available_ifos = nil
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local lookup_history = nil
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local function getIfosInDir(path)
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-- Get all the .ifo under directory path.
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-- We use the same logic as sdcv to walk directories and ifos files
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-- (so we get them in the order sdcv queries them) :
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-- - No sorting, entries are processed in the order the dir_read_name() call
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-- returns them (inodes linked list)
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-- - If entry is a directory, Walk in it first and recurse
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-- With a small optimisation to avoid walking dict subdirectories that
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-- may contain many images: if .ifo found, don't recurse subdirectories.
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local ifos = {}
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local ok, iter, dir_obj = pcall(lfs.dir, path)
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if ok then
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local ifo_found = false
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local subdirs = {}
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for name in iter, dir_obj do
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if name ~= "." and name ~= ".." then
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local fullpath = path.."/"..name
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if fullpath:match("%.ifo$") then
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table.insert(ifos, fullpath)
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ifo_found = true
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elseif not ifo_found then -- don't check for dirs anymore if we found one .ifo
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local attributes = lfs.attributes(fullpath)
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if attributes ~= nil and attributes.mode == "directory" then
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table.insert(subdirs, fullpath)
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end
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end
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end
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end
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if not ifo_found and #subdirs > 0 then
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for _, subdir in pairs(subdirs) do
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local dirifos = getIfosInDir(subdir)
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for _, ifo in pairs(dirifos) do
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table.insert(ifos, ifo)
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end
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end
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end
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end
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return ifos
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end
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local ReaderDictionary = InputContainer:new{
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data_dir = nil,
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dict_window_list = {},
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disable_lookup_history = G_reader_settings:isTrue("disable_lookup_history"),
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lookup_msg = _("Searching dictionary for:\n%1"),
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}
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local function readDictionaryCss(path)
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local f = io.open(path, "r")
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if not f then
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return nil
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end
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local content = f:read("*all")
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f:close()
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return content
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end
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function ReaderDictionary:init()
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self.ui.menu:registerToMainMenu(self)
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self.data_dir = os.getenv("STARDICT_DATA_DIR") or
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DataStorage:getDataDir() .. "/data/dict"
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-- Gather info about available dictionaries
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if not available_ifos then
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available_ifos = {}
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logger.dbg("Getting list of dictionaries")
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local ifo_files = getIfosInDir(self.data_dir)
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local dict_ext = self.data_dir.."_ext"
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if lfs.attributes(dict_ext, "mode") == "directory" then
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local extifos = getIfosInDir(dict_ext)
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for _, ifo in pairs(extifos) do
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table.insert(ifo_files, ifo)
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end
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end
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for _, ifo_file in pairs(ifo_files) do
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local f = io.open(ifo_file, "r")
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if f then
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local content = f:read("*all")
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f:close()
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local dictname = content:match("\nbookname=(.-)\n")
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local is_html = content:find("sametypesequence=h", 1, true) ~= nil
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-- sdcv won't use dict that don't have a bookname=
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if dictname then
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table.insert(available_ifos, {
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file = ifo_file,
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name = dictname,
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is_html = is_html,
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css = readDictionaryCss(ifo_file:gsub("%.ifo$", ".css"))
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})
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end
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end
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end
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logger.dbg("found", #available_ifos, "dictionaries")
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if not G_reader_settings:readSetting("dicts_disabled") then
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-- Create an empty dict for this setting, so that we can
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-- access and update it directly through G_reader_settings
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-- and it will automatically be saved.
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G_reader_settings:saveSetting("dicts_disabled", {})
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end
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end
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-- Prepare the -u options to give to sdcv if some dictionaries are disabled
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self:updateSdcvDictNamesOptions()
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if not lookup_history then
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lookup_history = LuaData:open(DataStorage:getSettingsDir() .. "/lookup_history.lua", { name = "LookupHistory" })
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end
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end
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function ReaderDictionary:updateSdcvDictNamesOptions()
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-- We cannot tell sdcv which dictionaries to ignore, but we
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-- can tell it which dictionaries to use, by using multiple
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-- -u <dictname> options.
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-- (The order of the -u does not matter, and we can not use
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-- them for ordering queries and results)
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local dicts_disabled = G_reader_settings:readSetting("dicts_disabled")
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if not next(dicts_disabled) then
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-- no dict disabled, no need to use any -u option
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self.sdcv_dictnames_options_raw = nil
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self.sdcv_dictnames_options_escaped = nil
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return
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end
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local u_options_raw = {} -- for android call (individual unesscaped elements)
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local u_options_escaped = {} -- for other devices call via shell
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for _, ifo in pairs(available_ifos) do
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if not dicts_disabled[ifo.file] then
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table.insert(u_options_raw, "-u")
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table.insert(u_options_raw, ifo.name)
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-- Escape chars in dictname so it's ok for the shell command
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-- local u_esc = ("-u %q"):format(ifo.name)
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-- This may be safer than using lua's %q:
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local u_esc = "-u '" .. ifo.name:gsub("'", "'\\''") .. "'"
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table.insert(u_options_escaped, u_esc)
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end
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-- Note: if all dicts are disabled, we won't get any -u, and so
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-- all dicts will be queried.
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end
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self.sdcv_dictnames_options_raw = u_options_raw
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self.sdcv_dictnames_options_escaped = table.concat(u_options_escaped, " ")
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end
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function ReaderDictionary:addToMainMenu(menu_items)
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menu_items.dictionary_lookup = {
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text = _("Dictionary lookup"),
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tap_input = {
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title = _("Enter a word to look up"),
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ok_text = _("Search dictionary"),
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type = "text",
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callback = function(input)
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self:onLookupWord(input)
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end,
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},
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}
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menu_items.dictionary_lookup_history = {
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text = _("Dictionary lookup history"),
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enabled_func = function()
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return lookup_history:has("lookup_history")
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end,
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callback = function()
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local lookup_history_table = lookup_history:readSetting("lookup_history")
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local kv_pairs = {}
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local previous_title
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for i = #lookup_history_table, 1, -1 do
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local value = lookup_history_table[i]
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if value.book_title ~= previous_title then
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table.insert(kv_pairs, { value.book_title..":", "" })
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end
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previous_title = value.book_title
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table.insert(kv_pairs, {
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os.date("%Y-%m-%d %H:%M:%S", value.time),
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value.word,
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callback = function()
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self:onLookupWord(value.word)
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end
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})
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end
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UIManager:show(KeyValuePage:new{
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title = _("Dictionary lookup history"),
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kv_pairs = kv_pairs,
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})
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end,
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}
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menu_items.dictionary_settings = {
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text = _("Dictionary settings"),
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sub_item_table = {
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{
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text_func = function()
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local nb_available, nb_enabled, nb_disabled = self:getNumberOfDictionaries()
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local nb_str = nb_available
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if nb_disabled > 0 then
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nb_str = nb_enabled .. "/" .. nb_available
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end
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return T(_("Installed dictionaries (%1)"), nb_str)
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end,
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enabled_func = function()
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return self:getNumberOfDictionaries() > 0
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end,
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sub_item_table = self:genDictionariesMenu(),
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},
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{
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text = _("Info on dictionary order"),
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callback = function()
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UIManager:show(InfoMessage:new{
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text = T(_([[
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If you'd like to change the order in which dictionaries are queried (and their results displayed), you can:
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- move all dictionary directories out of %1.
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- move them back there, one by one, in the order you want them to be used.]]), self.data_dir)
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})
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end,
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},
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{
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text = _("Enable fuzzy search"),
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checked_func = function()
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return not self.disable_fuzzy_search == true
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end,
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callback = function()
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self.disable_fuzzy_search = not self.disable_fuzzy_search
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end,
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hold_callback = function()
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self:makeDisableFuzzyDefault(self.disable_fuzzy_search)
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end,
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separator = true,
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},
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{
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text = _("Enable dictionary lookup history"),
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checked_func = function()
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return not self.disable_lookup_history
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end,
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callback = function()
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self.disable_lookup_history = not self.disable_lookup_history
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G_reader_settings:saveSetting("disable_lookup_history", self.disable_lookup_history)
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end,
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},
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{
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text = _("Clean dictionary lookup history"),
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callback = function()
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UIManager:show(ConfirmBox:new{
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text = _("Clean dictionary lookup history?"),
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ok_text = _("Clean"),
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ok_callback = function()
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-- empty data table to replace current one
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lookup_history:reset{}
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end,
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})
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end,
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separator = true,
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},
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{ -- setting used by dictquicklookup
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text = _("Large window"),
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checked_func = function()
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return G_reader_settings:isTrue("dict_largewindow")
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end,
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callback = function()
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G_reader_settings:flipNilOrFalse("dict_largewindow")
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end,
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},
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{ -- setting used by dictquicklookup
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text = _("Justify text"),
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checked_func = function()
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return G_reader_settings:nilOrTrue("dict_justify")
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end,
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callback = function()
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G_reader_settings:flipNilOrTrue("dict_justify")
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end,
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}
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}
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}
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end
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function ReaderDictionary:onLookupWord(word, box, highlight, link)
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self.highlight = highlight
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-- Wrapped through Trapper, as we may be using Trapper:dismissablePopen() in it
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Trapper:wrap(function()
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self:stardictLookup(word, box, link)
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end)
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return true
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end
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--- Gets number of available, enabled, and disabled dictionaries
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-- @treturn int nb_available
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-- @treturn int nb_enabled
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-- @treturn int nb_disabled
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function ReaderDictionary:getNumberOfDictionaries()
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local nb_available = #available_ifos
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local nb_disabled = 0
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for _ in pairs(G_reader_settings:readSetting("dicts_disabled")) do
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nb_disabled = nb_disabled + 1
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end
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local nb_enabled = nb_available - nb_disabled
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return nb_available, nb_enabled, nb_disabled
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end
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function ReaderDictionary:genDictionariesMenu()
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local items = {}
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for _, ifo in pairs(available_ifos) do
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table.insert(items, {
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text = ifo.name,
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callback = function()
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local dicts_disabled = G_reader_settings:readSetting("dicts_disabled")
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if dicts_disabled[ifo.file] then
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dicts_disabled[ifo.file] = nil
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else
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dicts_disabled[ifo.file] = true
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end
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-- Update the -u options to give to sdcv
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self:updateSdcvDictNamesOptions()
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end,
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checked_func = function()
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local dicts_disabled = G_reader_settings:readSetting("dicts_disabled")
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return not dicts_disabled[ifo.file]
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end
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})
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end
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return items
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end
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local function dictDirsEmpty(dict_dirs)
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for _, dict_dir in ipairs(dict_dirs) do
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if not util.isEmptyDir(dict_dir) then
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return false
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end
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end
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return true
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end
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local function getAvailableIfoByName(dictionary_name)
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for _, ifo in ipairs(available_ifos) do
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if ifo.name == dictionary_name then
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return ifo
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end
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end
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return nil
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end
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local function tidyMarkup(results)
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local cdata_tag = "<!%[CDATA%[(.-)%]%]>"
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local format_escape = "&[29Ib%+]{(.-)}"
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for _, result in ipairs(results) do
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local ifo = getAvailableIfoByName(result.dict)
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if ifo and ifo.is_html then
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result.is_html = ifo.is_html
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result.css = ifo.css
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else
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local def = result.definition
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-- preserve the <br> tag for line break
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def = def:gsub("<[bB][rR] ?/?>", "\n")
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-- parse CDATA text in XML
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if def:find(cdata_tag) then
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def = def:gsub(cdata_tag, "%1")
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-- ignore format strings
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while def:find(format_escape) do
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def = def:gsub(format_escape, "%1")
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end
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end
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-- ignore all markup tags
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def = def:gsub("%b<>", "")
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-- strip all leading empty lines/spaces
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def = def:gsub("^%s+", "")
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result.definition = def
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end
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end
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return results
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end
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function ReaderDictionary:cleanSelection(text)
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-- Will be used by ReaderWikipedia too
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if not text then
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return ""
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end
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-- crengine does now a much better job at finding word boundaries, but
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-- some cleanup is still needed for selection we get from other engines
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-- (example: pdf selection "qu’autrefois," will be cleaned to "autrefois")
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--
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-- Replace extended quote (included in the general puncturation range)
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-- with plain ascii quote (for french words like "aujourd’hui")
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text = string.gsub(text, "\xE2\x80\x99", "'") -- U+2019 (right single quotation mark)
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-- Strip punctuation characters around selection
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text = util.stripePunctuations(text)
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-- Strip some common english grammatical construct
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text = string.gsub(text, "'s$", '') -- english possessive
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-- Strip some common french grammatical constructs
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text = string.gsub(text, "^[LSDMNTlsdmnt]'", '') -- french l' s' t'...
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text = string.gsub(text, "^[Qq][Uu]'", '') -- french qu'
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-- Replace no-break space with regular space
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text = string.gsub(text, "\xC2\xA0", ' ') -- U+00A0 no-break space
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-- There may be a need to remove some (all?) diacritical marks
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-- https://en.wikipedia.org/wiki/Combining_character#Unicode_ranges
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-- see discussion at https://github.com/koreader/koreader/issues/1649
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-- Commented for now, will have to be checked by people who read
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-- languages and texts that use them.
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-- text = string.gsub(text, "\204[\128-\191]", '') -- U+0300 to U+033F
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-- text = string.gsub(text, "\205[\128-\175]", '') -- U+0340 to U+036F
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return text
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end
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function ReaderDictionary:showLookupInfo(word)
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local text = T(self.lookup_msg, word)
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self.lookup_progress_msg = InfoMessage:new{text=text}
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UIManager:show(self.lookup_progress_msg)
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UIManager:forceRePaint()
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end
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function ReaderDictionary:dismissLookupInfo()
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if self.lookup_progress_msg then
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UIManager:close(self.lookup_progress_msg)
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UIManager:forceRePaint()
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end
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self.lookup_progress_msg = nil
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end
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function ReaderDictionary:stardictLookup(word, box, link)
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logger.dbg("lookup word:", word, box)
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-- escape quotes and other funny characters in word
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word = self:cleanSelection(word)
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logger.dbg("stripped word:", word)
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if word == "" then
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return
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end
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if not self.disable_lookup_history then
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local book_title = self.ui.doc_settings and self.ui.doc_settings:readSetting("doc_props").title or _("Dictionary lookup")
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lookup_history:addTableItem("lookup_history", {
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book_title = book_title,
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time = os.time(),
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word = word,
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})
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end
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if not self.disable_fuzzy_search then
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self:showLookupInfo(word)
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end
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local final_results = {}
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local seen_results = {}
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-- Allow for two sdcv calls : one in the classic data/dict, and
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-- another one in data/dict_ext if it exists
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-- We could put in data/dict_ext dictionaries with a great number of words
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-- but poor definitions as a fall back. If these were in data/dict,
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-- they would prevent fuzzy searches in other dictories with better
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-- definitions, and masks such results. This way, we can get both.
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local dict_dirs = {self.data_dir}
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local dict_ext = self.data_dir.."_ext"
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if lfs.attributes(dict_ext, "mode") == "directory" then
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table.insert(dict_dirs, dict_ext)
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end
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-- early exit if no dictionaries
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if dictDirsEmpty(dict_dirs) then
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final_results = {
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{
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dict = "",
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word = word,
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definition = _([[No dictionaries installed. Please search for "Dictionary support" in the KOReader Wiki to get more information about installing new dictionaries.]]),
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}
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}
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self:showDict(word, final_results, box, link)
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return
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end
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local lookup_cancelled = false
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local common_options = self.disable_fuzzy_search and "-nje" or "-nj"
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for _, dict_dir in ipairs(dict_dirs) do
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if lookup_cancelled then
|
||
break -- don't do any more lookup on additional dict_dirs
|
||
end
|
||
local results_str = nil
|
||
if Device:isAndroid() then
|
||
local A = require("android")
|
||
local args = {"./sdcv", "--utf8-input", "--utf8-output", common_options, word, "--data-dir", dict_dir}
|
||
if self.sdcv_dictnames_options_raw then
|
||
for _, opt in pairs(self.sdcv_dictnames_options_raw) do
|
||
table.insert(args, opt)
|
||
end
|
||
end
|
||
results_str = A.stdout(unpack(args))
|
||
else
|
||
local cmd = ("./sdcv --utf8-input --utf8-output %q %q --data-dir %q"):format(common_options, word, dict_dir)
|
||
if self.sdcv_dictnames_options_escaped then
|
||
cmd = cmd .. " " .. self.sdcv_dictnames_options_escaped
|
||
end
|
||
-- cmd = "sleep 7 ; " .. cmd -- uncomment to simulate long lookup time
|
||
|
||
if self.lookup_progress_msg then
|
||
-- Some sdcv lookups, when using fuzzy search with many dictionaries
|
||
-- and a really bad selected text, can take up to 10 seconds.
|
||
-- It is nice to be able to cancel it when noticing wrong text was selected.
|
||
-- As we have a lookup_progress_msg (that can be used to catch a tap
|
||
-- and trigger cancellation), and because sdcv starts outputing its
|
||
-- output only at the end when it has done its work, we can
|
||
-- use Trapper:dismissablePopen() to cancel it as long as we are waiting
|
||
-- for output.
|
||
-- We must ensure we will have some output to be readable (if no
|
||
-- definition found, sdcv will output some message on stderr, and
|
||
-- let stdout empty) by appending an "echo":
|
||
cmd = cmd .. "; echo"
|
||
local completed
|
||
completed, results_str = Trapper:dismissablePopen(cmd, self.lookup_progress_msg)
|
||
lookup_cancelled = not completed
|
||
else
|
||
-- Fuzzy search disabled, usual option for people who don't want
|
||
-- a "Looking up..." InfoMessage and usually fast: do a classic
|
||
-- blocking io.popen()
|
||
local std_out = io.popen(cmd, "r")
|
||
if std_out then
|
||
results_str = std_out:read("*all")
|
||
std_out:close()
|
||
end
|
||
end
|
||
end
|
||
if results_str and results_str ~= "\n" then -- \n is when lookup was cancelled
|
||
local ok, results = pcall(JSON.decode, results_str)
|
||
if ok and results then
|
||
-- we may get duplicates (sdcv may do multiple queries,
|
||
-- in fixed mode then in fuzzy mode), we have to remove them
|
||
local h
|
||
for _,r in ipairs(results) do
|
||
h = r.dict .. r.word .. r.definition
|
||
if seen_results[h] == nil then
|
||
table.insert(final_results, r)
|
||
seen_results[h] = true
|
||
end
|
||
end
|
||
else
|
||
logger.warn("JSON data cannot be decoded", results)
|
||
end
|
||
end
|
||
end
|
||
if #final_results == 0 then
|
||
-- dummy results
|
||
final_results = {
|
||
{
|
||
dict = "",
|
||
word = word,
|
||
definition = lookup_cancelled and _("Dictionary lookup canceled.") or _("No definition found."),
|
||
}
|
||
}
|
||
end
|
||
self:showDict(word, tidyMarkup(final_results), box, link)
|
||
end
|
||
|
||
function ReaderDictionary:showDict(word, results, box, link)
|
||
self:dismissLookupInfo()
|
||
if results and results[1] then
|
||
logger.dbg("showing quick lookup window", word, results)
|
||
self.dict_window = DictQuickLookup:new{
|
||
window_list = self.dict_window_list,
|
||
ui = self.ui,
|
||
highlight = self.highlight,
|
||
dialog = self.dialog,
|
||
-- original lookup word
|
||
word = word,
|
||
-- selected link, if any
|
||
selected_link = link,
|
||
results = results,
|
||
dictionary = self.default_dictionary,
|
||
width = Screen:getWidth() - Screen:scaleBySize(80),
|
||
word_box = box,
|
||
-- differentiate between dict and wiki
|
||
is_wiki = self.is_wiki,
|
||
wiki_languages = self.wiki_languages,
|
||
refresh_callback = function()
|
||
if self.view then
|
||
-- update info in footer (time, battery, etc)
|
||
self.view.footer:updateFooter()
|
||
end
|
||
end,
|
||
}
|
||
table.insert(self.dict_window_list, self.dict_window)
|
||
UIManager:show(self.dict_window)
|
||
end
|
||
end
|
||
|
||
function ReaderDictionary:onUpdateDefaultDict(dict)
|
||
logger.dbg("make default dictionary:", dict)
|
||
self.default_dictionary = dict
|
||
UIManager:show(InfoMessage:new{
|
||
text = T(_("%1 is now the default dictionary for this document."),
|
||
dict),
|
||
timeout = 2,
|
||
})
|
||
return true
|
||
end
|
||
|
||
function ReaderDictionary:onReadSettings(config)
|
||
self.default_dictionary = config:readSetting("default_dictionary")
|
||
self.disable_fuzzy_search = config:readSetting("disable_fuzzy_search")
|
||
if self.disable_fuzzy_search == nil then
|
||
self.disable_fuzzy_search = G_reader_settings:isTrue("disable_fuzzy_search")
|
||
end
|
||
end
|
||
|
||
function ReaderDictionary:onSaveSettings()
|
||
logger.dbg("save default dictionary", self.default_dictionary)
|
||
self.ui.doc_settings:saveSetting("default_dictionary", self.default_dictionary)
|
||
self.ui.doc_settings:saveSetting("disable_fuzzy_search", self.disable_fuzzy_search)
|
||
end
|
||
|
||
function ReaderDictionary:makeDisableFuzzyDefault(disable_fuzzy_search)
|
||
logger.dbg("disable fuzzy search", self.disable_fuzzy_search)
|
||
UIManager:show(ConfirmBox:new{
|
||
text = T(
|
||
disable_fuzzy_search
|
||
and _("Disable fuzzy search by default?")
|
||
or _("Enable fuzzy search by default?")
|
||
),
|
||
ok_text = T(
|
||
disable_fuzzy_search
|
||
and _("Disable")
|
||
or _("Enable")
|
||
),
|
||
ok_callback = function()
|
||
G_reader_settings:saveSetting("disable_fuzzy_search", disable_fuzzy_search)
|
||
end,
|
||
})
|
||
end
|
||
|
||
return ReaderDictionary
|