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Mention ability to specify number of lines, as on https://docs.weblate.org/en/latest/user/checks.html#maximum-size-of-translation.
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415 lines
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ReStructuredText
Checks and fixups
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=================
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.. _custom-autofix:
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Custom automatic fixups
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-----------------------
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You can also implement your own automatic fixup in addition to the standard ones and
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include them in :setting:`AUTOFIX_LIST`.
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The automatic fixes are powerful, but can also cause damage; be careful when
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writing one.
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For example, the following automatic fixup would replace every occurrence of the string
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``foo`` in a translation with ``bar``:
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.. literalinclude:: ../../weblate/examples/fix_foo.py
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:language: python
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To install custom checks, provide a fully-qualified path to the Python class
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in the :setting:`AUTOFIX_LIST`, see :ref:`custom-check-modules`.
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.. _custom-checks:
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Customizing behavior using flags
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--------------------------------
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You can fine-tune Weblate's behavior by using flags. The flags provide visual
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feedback to the translators and help them to improve their translation.
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The flags are merged from following sources:
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* Source string, see :ref:`additional`.
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* Per-string flags extracted from the file format, see :ref:`formats`.
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* Translation flags (currently only ``read-only`` flag for bilingual source string).
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* File-format specific flags.
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* :ref:`component` (:ref:`component-check_flags`).
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The flags are comma-separated; if they have parameters, they are separated
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with colon. You can use quotes to include whitespaces or special characters
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in the string. For example:
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.. code-block:: text
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placeholders:"special:value":"other value", regex:.*
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Both single and double quotes are accepted, special characters are being escaped using backslash:
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.. code-block:: text
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placeholders:"quoted \"string\"":'single \'quoted\''
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.. code-block:: text
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placeholders:r"^#*"
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To verify that translators do not change the heading of a Markdown document:
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A failing check will be triggered if the string '### Index' is translated as '# Indice'
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.. code-block:: text
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placeholders:r"\]\([^h].*?\)"
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To ensure that internal links are not being translated (i.e. `[test](../checks)`
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does not become `[test](../chequeos)`.
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Here is a list of flags currently accepted:
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``rst-text``
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Treat a text as an reStructuredText document, affects :ref:`check-same`.
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``dos-eol``
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Uses DOS end-of-line markers instead of Unix ones (``\r\n`` instead of ``\n``).
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``read-only``
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The string is read-only and should not be edited in Weblate, see :ref:`read-only-strings`.
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``terminology``
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Used in :ref:`glossary`. Copies the string into all glossary languages so it can be used consistently in all translations. Also useful in combination with ``read-only``, for example in product names.
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``priority:N``
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Priority of the string. Higher priority strings are presented first for translation.
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The default priority is 100, the higher priority a string has, the earlier it is
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offered for translation.
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``max-length:N``
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Limit the maximal length for a string to N characters, see :ref:`check-max-length`.
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``xml-text``
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Treat text as XML document, affects :ref:`check-xml-invalid` and :ref:`check-xml-tags`.
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``font-family:NAME``
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Define font-family for rendering checks, see :ref:`fonts`.
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``font-weight:WEIGHT``
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Define font-weight for rendering checks, see :ref:`fonts`.
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``font-size:SIZE``
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Define font-size for rendering checks, see :ref:`fonts`.
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``font-spacing:SPACING``
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Define letter spacing for rendering checks, see :ref:`fonts`.
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``icu-flags:FLAGS``
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Define flags for customizing the behavior of the :ref:`check-icu-message-format` quality check.
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``icu-tag-prefix:PREFIX``
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Set a required prefix for XML tags for the :ref:`check-icu-message-format` quality check.
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``placeholders:NAME:NAME2:...``
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Placeholder strings expected in translation, see :ref:`check-placeholders`.
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``replacements:FROM:TO:FROM2:TO2...``
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Replacements to perform when checking resulting text parameters (for
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example in :ref:`check-max-size` or :ref:`check-max-length`). The typical
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use case for this is to expand placeables to ensure that the text fits even
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with long values, for example: ``replacements:%s:"John Doe"``.
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``variants:SOURCE``
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Mark this string as a variant of string with matching source. See :ref:`variants`.
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``regex:REGEX``
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Regular expression to match translation, see :ref:`check-regex`.
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``forbidden``
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Indicates forbidden translation in a glossary, see :ref:`glossary-forbidden`.
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``strict-same``
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Make "Unchanged translation" avoid using built-in words blacklist, see :ref:`check-same`.
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``strict-format``
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Make format checks enforce using format even for plural forms with a single value, see :ref:`check-formats`.
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``check-glossary``
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Enable the :ref:`check-check-glossary` quality check.
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``angularjs-format``
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Enable the :ref:`check-angularjs-format` quality check.
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``c-format``
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Enable the :ref:`check-c-format` quality check.
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``c-sharp-format``
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Enable the :ref:`check-c-sharp-format` quality check.
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``es-format``
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Enable the :ref:`check-es-format` quality check.
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``i18next-interpolation``
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Enable the :ref:`check-i18next-interpolation` quality check.
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``icu-message-format``
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Enable the :ref:`check-icu-message-format` quality check.
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``java-printf-format``
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Enable the :ref:`check-java-printf-format` quality check.
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``java-format``
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Enable the :ref:`check-java-format` quality check.
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``javascript-format``
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Enable the :ref:`check-javascript-format` quality check.
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``lua-format``
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Enable the :ref:`check-lua-format` quality check.
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``object-pascal-format``
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Enable the :ref:`check-object-pascal-format` quality check.
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``percent-placeholders``
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Enable the :ref:`check-percent-placeholders` quality check.
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``perl-brace-format``
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Enable the :ref:`check-perl-brace-format` quality check.
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``perl-format``
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Enable the :ref:`check-perl-format` quality check.
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``php-format``
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Enable the :ref:`check-php-format` quality check.
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``python-brace-format``
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Enable the :ref:`check-python-brace-format` quality check.
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``python-format``
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Enable the :ref:`check-python-format` quality check.
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``qt-format``
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Enable the :ref:`check-qt-format` quality check.
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``qt-plural-format``
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Enable the :ref:`check-qt-plural-format` quality check.
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``ruby-format``
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Enable the :ref:`check-ruby-format` quality check.
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``scheme-format``
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Enable the :ref:`check-scheme-format` quality check.
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``vue-format``
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Enable the :ref:`check-vue-format` quality check.
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``md-text``
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Treat text as a Markdown document, and provide Markdown syntax highlighting on the translation text area.
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Enables :ref:`check-md-link`, :ref:`check-md-reflink`, and :ref:`check-md-syntax` quality checks.
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``case-insensitive``
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Adjust checks behavior to be case-insensitive. Currently affects only :ref:`check-placeholders` quality check.
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``safe-html``
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Enable the :ref:`check-safe-html` quality check.
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``url``
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The string should consist of only a URL.
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Enable the :ref:`check-url` quality check.
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``ignore-all-checks``
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Ignore all quality checks.
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``ignore-bbcode``
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Skip the :ref:`check-bbcode` quality check.
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``ignore-duplicate``
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Skip the :ref:`check-duplicate` quality check.
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``ignore-check-glossary``
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Skip the :ref:`check-check-glossary` quality check.
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``ignore-double-space``
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Skip the :ref:`check-double-space` quality check.
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``ignore-angularjs-format``
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Skip the :ref:`check-angularjs-format` quality check.
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``ignore-c-format``
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Skip the :ref:`check-c-format` quality check.
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``ignore-c-sharp-format``
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Skip the :ref:`check-c-sharp-format` quality check.
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``ignore-es-format``
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Skip the :ref:`check-es-format` quality check.
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``ignore-i18next-interpolation``
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Skip the :ref:`check-i18next-interpolation` quality check.
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``ignore-icu-message-format``
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Skip the :ref:`check-icu-message-format` quality check.
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``ignore-java-printf-format``
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Skip the :ref:`check-java-printf-format` quality check.
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``ignore-java-format``
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Skip the :ref:`check-java-format` quality check.
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``ignore-javascript-format``
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Skip the :ref:`check-javascript-format` quality check.
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``ignore-lua-format``
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Skip the :ref:`check-lua-format` quality check.
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``ignore-object-pascal-format``
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Skip the :ref:`check-object-pascal-format` quality check.
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``ignore-percent-placeholders``
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Skip the :ref:`check-percent-placeholders` quality check.
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``ignore-perl-brace-format``
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Skip the :ref:`check-perl-brace-format` quality check.
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``ignore-perl-format``
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Skip the :ref:`check-perl-format` quality check.
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``ignore-php-format``
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Skip the :ref:`check-php-format` quality check.
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``ignore-python-brace-format``
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Skip the :ref:`check-python-brace-format` quality check.
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``ignore-python-format``
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Skip the :ref:`check-python-format` quality check.
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``ignore-qt-format``
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Skip the :ref:`check-qt-format` quality check.
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``ignore-qt-plural-format``
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Skip the :ref:`check-qt-plural-format` quality check.
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``ignore-ruby-format``
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Skip the :ref:`check-ruby-format` quality check.
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``ignore-scheme-format``
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Skip the :ref:`check-scheme-format` quality check.
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``ignore-vue-format``
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Skip the :ref:`check-vue-format` quality check.
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``ignore-translated``
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Skip the :ref:`check-translated` quality check.
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``ignore-inconsistent``
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Skip the :ref:`check-inconsistent` quality check.
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``ignore-kashida``
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Skip the :ref:`check-kashida` quality check.
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``ignore-md-link``
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Skip the :ref:`check-md-link` quality check.
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``ignore-md-reflink``
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Skip the :ref:`check-md-reflink` quality check.
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``ignore-md-syntax``
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Skip the :ref:`check-md-syntax` quality check.
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``ignore-max-length``
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Skip the :ref:`check-max-length` quality check.
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``ignore-max-size``
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Skip the :ref:`check-max-size` quality check.
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``ignore-escaped-newline``
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Skip the :ref:`check-escaped-newline` quality check.
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``ignore-end-colon``
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Skip the :ref:`check-end-colon` quality check.
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``ignore-end-ellipsis``
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Skip the :ref:`check-end-ellipsis` quality check.
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``ignore-end-exclamation``
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Skip the :ref:`check-end-exclamation` quality check.
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``ignore-end-stop``
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Skip the :ref:`check-end-stop` quality check.
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``ignore-end-question``
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Skip the :ref:`check-end-question` quality check.
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``ignore-end-semicolon``
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Skip the :ref:`check-end-semicolon` quality check.
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``ignore-newline-count``
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Skip the :ref:`check-newline-count` quality check.
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``ignore-plurals``
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Skip the :ref:`check-plurals` quality check.
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``ignore-placeholders``
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Skip the :ref:`check-placeholders` quality check.
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``ignore-punctuation-spacing``
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Skip the :ref:`check-punctuation-spacing` quality check.
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``ignore-regex``
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Skip the :ref:`check-regex` quality check.
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``ignore-reused``
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Skip the :ref:`check-reused` quality check.
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``ignore-same-plurals``
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Skip the :ref:`check-same-plurals` quality check.
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``ignore-begin-newline``
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Skip the :ref:`check-begin-newline` quality check.
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``ignore-begin-space``
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Skip the :ref:`check-begin-space` quality check.
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``ignore-end-newline``
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Skip the :ref:`check-end-newline` quality check.
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``ignore-end-space``
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Skip the :ref:`check-end-space` quality check.
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``ignore-same``
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Skip the :ref:`check-same` quality check.
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``ignore-safe-html``
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Skip the :ref:`check-safe-html` quality check.
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``ignore-url``
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Skip the :ref:`check-url` quality check.
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``ignore-xml-tags``
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Skip the :ref:`check-xml-tags` quality check.
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``ignore-xml-invalid``
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Skip the :ref:`check-xml-invalid` quality check.
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``ignore-zero-width-space``
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Skip the :ref:`check-zero-width-space` quality check.
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``ignore-ellipsis``
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Skip the :ref:`check-ellipsis` quality check.
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``ignore-icu-message-format-syntax``
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Skip the :ref:`check-icu-message-format-syntax` quality check.
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``ignore-long-untranslated``
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Skip the :ref:`check-long-untranslated` quality check.
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``ignore-multiple-failures``
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Skip the :ref:`check-multiple-failures` quality check.
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``ignore-unnamed-format``
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Skip the :ref:`check-unnamed-format` quality check.
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``ignore-optional-plural``
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Skip the :ref:`check-optional-plural` quality check.
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.. note::
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Generally the rule is named ``ignore-*`` for any check, using its
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identifier, so you can use this even for your custom checks.
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These flags are understood both in :ref:`component` settings, per source string
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settings and in the translation file itself (for example in GNU gettext).
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.. _enforcing-checks:
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Enforcing checks
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----------------
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You can configure a list of checks which can not be ignored by setting
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:ref:`component-enforced_checks` in :ref:`component`. Each listed check can not
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be dismissed in the user interface and any string failing this check is marked as
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:guilabel:`Needs editing` (see :ref:`states`).
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.. note::
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Turning on check enforcing doesn't enable it automatically. The check can be
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turned on by adding the corresponding flag to string or component flags.
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.. seealso::
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:ref:`additional`,
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:ref:`component-check_flags`
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.. _fonts:
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Managing fonts
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--------------
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.. hint::
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Fonts uploaded into Weblate are used purely for purposes of the
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:ref:`check-max-size` check, they do not have an effect in Weblate user
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interface.
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The :ref:`check-max-size` check used to calculate dimensions of the rendered
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text needs font to be loaded into Weblate and selected using a translation flag
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(see :ref:`custom-checks`).
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Weblate font management tool in :guilabel:`Fonts` under the :guilabel:`Manage`
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menu of your translation project provides interface to upload and manage fonts.
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TrueType or OpenType fonts can be uploaded, set up font-groups and use those in
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the check.
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The font-groups allow you to define different fonts for different languages,
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which is typically needed for non-latin languages:
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.. image:: /screenshots/font-group-edit.webp
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The font-groups are identified by name, which can not contain whitespace or
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special characters, so that it can be easily used in the check definition:
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.. image:: /screenshots/font-group-list.webp
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Font-family and style is automatically recognized after uploading them:
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.. image:: /screenshots/font-edit.webp
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You can have a number of fonts loaded into Weblate:
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.. image:: /screenshots/font-list.webp
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To use the fonts for checking the string length, pass it the appropriate
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flags (see :ref:`custom-checks`). You will probably need the following ones:
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``max-size:500`` / ``max-size:300:5``
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Defines maximal width in pixels and, optionally, the maximum number of lines (word wrapping is applied).
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``font-family:ubuntu``
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Defines font group to use by specifying its identifier.
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``font-size:22``
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Defines font size in pixels.
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.. _own-checks:
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Writing own checks
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------------------
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A wide range of quality checks are built-in, (see :ref:`checks`), though
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they might not cover everything you want to check. The list of performed checks
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can be adjusted using :setting:`CHECK_LIST`, and you can also add custom checks.
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1. Subclass the `weblate.checks.Check`
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2. Set a few attributes.
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3. Implement either the ``check`` (if you want to deal with plurals in your code) or
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the ``check_single`` method (which does it for you).
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Some examples:
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To install custom checks, provide a fully-qualified path to the Python class
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in the :setting:`CHECK_LIST`, see :ref:`custom-check-modules`.
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Checking translation text does not contain "foo"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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This is a pretty simple check which just checks whether the translation is missing
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the string "foo".
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.. literalinclude:: ../../weblate/examples/check_foo.py
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:language: python
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Checking that Czech translation text plurals differ
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Check using language info to verify the two plural forms in Czech
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language are not same.
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.. literalinclude:: ../../weblate/examples/check_czech.py
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:language: python
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