Strings extraction

[ArmorDarks]

There seems to be very few suitable solutions for extraction of gettext strings into .pot file, which then could be used for translation into different locales, and all of them have issues:

• jsxgettext

  Node implementation of xgettext

  Pros:

  • Pure Node implementation
  • Supports Swig (thus works with Nunjucks)

  Cons:

  • Can extract only from singular and plural functions: https://github.com/zaach/jsxgettext/issues/95
  • Can't extract context and domain, thus can't handle properly functions with such arguments: https://github.com/zaach/jsxgettext/issues/94
  • Parser failing to parse some ordinary Nunjucks declarations (https://github.com/zaach/jsxgettext/issues/83 and https://github.com/zaach/jsxgettext/issues/78)
  • Doesn't extract comments from Nunjucks: https://github.com/zaach/jsxgettext/issues/86
  • Doesn't merge extracted strings properly: https://github.com/zaach/jsxgettext/issues/90
  • Doesn't support custom function names properly (minor): https://github.com/zaach/jsxgettext/issues/93

• grunt-i18n-abide

  Ready Grunt task with set of useful gettext-related tools

  Pros:

  • Set of ready tools for Grunt

  Cons:

  • Uses jsxgettext for extraction, thus has same issues
  • Doesn't work in Windows environment: https://github.com/mozilla/grunt-i18n-abide/issues/47

• grunt-xgettext

  Another Node/Grunt implementation of xgettext

  Pros:

  • Pure Node implementation
  • Supports context

  Cons:

  • Doesn't support custom function names properly (minor): https://github.com/arendjr/grunt-xgettext/issues/8

  • Doesn't have native support for Jinja or Nunjucks: https://github.com/arendjr/grunt-xgettext/issues/21

    Can parse in html mode, but in such case there are a lot of limitations

  • Can extract comments in expected form only from JavaScript: https://github.com/arendjr/grunt-xgettext#context-and-comments

  • Doesn't support domains: https://github.com/arendjr/grunt-xgettext/issues/6

• Python Babel

  Some more informations:

  • http://babel.edgewall.org/
  • http://babel.pocoo.org/docs/messages/#message-extraction
  • Python Babel for Jinja

  Note: didn't test yet

  Pros:

  • Has Jinja integration
  • Can do everything that native gettext can (I suppose)

  Cons:

  • Hostile environment
  • External dependency

• POEdit

  Works with inbuilt gettext, can extract from JS, PHP, etc. JS and PHP extractors seems to be working for Nunjucks

  Pros:

  • Seems to be working
  • Can map custom functions with arguments positions properly

  Cons:

  • External dependency
  • No API or CLI, only standalone program
  • Doesn't have explicit support for Jinja or Nunjucks, but JS and PHP parsers seems to work

• Native xgettext

  Pros:

  • Works
  • Can map custom functions with arguments positions properly

  Cons:

  • External dependency
  • Doesn't have explicit support for Jinja or Nunjucks, but JS and PHP parsers seems to work
  • Needs wrapper for processing batch files