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sile-typesetter / sile / 9688261573

26 Jun 2024 11:43PM UTC coverage: 69.955% (-1.4%) from 71.339%
9688261573

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Merge 115d95e3f into 8c5a2a2ba

12182 of 17414 relevant lines covered (69.96%)

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87.34
/core/languages.lua
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--- SILE language class.
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-- @interfaces languages
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local loadkit = require("loadkit")
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local cldr = require("cldr")
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loadkit.register("ftl", function (file)
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   local contents = assert(file:read("*a"))
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   file:close()
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   return assert(fluent:add_messages(contents))
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end)
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SILE.scratch.loaded_languages = {}
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SILE.languageSupport = {
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   languages = {},
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   loadLanguage = function (language)
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      language = language or SILE.settings:get("document.language")
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      language = cldr.locales[language] and language or "und"
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      if SILE.scratch.loaded_languages[language] then
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         return
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      end
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      SILE.scratch.loaded_languages[language] = true
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      local langresource = string.format("languages.%s", language)
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      local gotlang, lang = pcall(require, langresource)
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      if not gotlang then
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         SU.warn(
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            ("Unable to load language feature support (e.g. hyphenation rules) for %s: %s"):format(
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               language,
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               lang:gsub(":.*", "")
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            )
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         )
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      end
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      local ftlresource = string.format("i18n.%s", language)
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      SU.debug("fluent", "Loading FTL resource", ftlresource, "into locale", language)
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      -- This needs to be set so that we load localizations into the right bundle,
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      -- but this breaks the sync enabled by the hook in the document.language
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      -- setting, so we want to set it back when we're done.
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      local original_language = fluent:get_locale()
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      fluent:set_locale(language)
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      local gotftl, ftl = pcall(require, ftlresource)
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      if not gotftl then
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         SU.warn(
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            ("Unable to load localized strings (e.g. table of contents header text) for %s: %s"):format(
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               language,
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               ftl:gsub(":.*", "")
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            )
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         )
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      end
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      if type(lang) == "table" and lang.init then
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         lang.init()
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      end
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      fluent:set_locale(original_language)
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   end,
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}
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SILE.registerCommand("language", function (options, content)
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   local main = SU.required(options, "main", "language setting")
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   SILE.languageSupport.loadLanguage(main)
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   if content[1] then
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      SILE.settings:temporarily(function ()
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         SILE.settings:set("document.language", main)
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         SILE.process(content)
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      end)
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   else
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      SILE.settings:set("document.language", main)
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   end
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end, nil, nil, true)
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SILE.registerCommand("fluent", function (options, content)
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   local key = content[1]
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   local locale = options.locale or SILE.settings:get("document.language")
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   local original_locale = fluent:get_locale()
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   fluent:set_locale(locale)
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   SU.debug("fluent", "Looking for", key, "in", locale)
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   local entry
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   if key then
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      entry = fluent:get_message(key)
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   else
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      SU.warn("Fluent localization function called without passing a valid message id")
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   end
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   local message
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   if entry then
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      message = entry:format(options)
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   else
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      SU.warn(string.format("No localized message for %s found in locale %s", key, locale))
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      fluent:set_locale("und")
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      entry = fluent:get_message(key)
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      if entry then
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         message = entry:format(options)
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      end
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   end
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   fluent:set_locale(original_locale)
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   SILE.processString(("<sile>%s</sile>"):format(message), "xml")
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end, nil, nil, true)
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SILE.registerCommand("ftl", function (options, content)
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   local original_locale = fluent:get_locale()
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   local locale = options.locale or SILE.settings:get("document.language")
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   SU.debug("fluent", "Loading message(s) into locale", locale)
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   fluent:set_locale(locale)
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   if options.src then
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      fluent:load_file(options.src, locale)
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   elseif SU.ast.hasContent(content) then
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      local input = content[1]
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      fluent:add_messages(input, locale)
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   end
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   fluent:set_locale(original_locale)
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end, nil, nil, true)
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require("languages.unicode")
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-- The following languages neither have hyphenation nor specific
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-- language support at present. This code is here to suppress warnings.
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SILE.hyphenator.languages.ar = { patterns = {} }
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SILE.hyphenator.languages.bo = { patterns = {} }
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SILE.hyphenator.languages.sd = { patterns = {} }
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SILE.hyphenator.languages.ur = { patterns = {} }
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