Checks: Add MultipleCapitalCheck for issue #8753

docs/changes.rst

@@ -5,6 +5,8 @@ Weblate 5.16
 
 .. rubric:: New features
 
+* :ref:`check-multiple-capital` quality check.
+
 .. rubric:: Improvements
 
 * Delete announcements permission can be assigned to teams, see :ref:`privileges`.

docs/user/checks.rst

@@ -742,7 +742,7 @@
 .. seealso::
 
    * :ref:`check-formats`
    * `Laravel translation formatting <https://laravel.com/docs/localization#replacing-parameters-in-translation-strings>`_
 
 .. _check-lua-format:
 
@@ -1476,6 +1476,25 @@
 Failing to fill in plural forms will in some cases lead to displaying nothing when
 the plural form is in use.
 
+.. _check-multiple-capital:
+
+Multiple capitals
+~~~~~~~~~~~~~~~~~
+
+.. versionadded:: 5.16
+
+:Summary: Translation contains words with multiple misplaced capital letters.
+:Scope: translated strings
+:Check class: ``weblate.checks.chars.MultipleCapitalCheck``
+:Check identifier: ``multiple_capital``
+:Trigger: This check is always enabled but can be ignored using a flag.
+:Flag to ignore: ``ignore-multiple-capital``
+
+Checks for misplaced capitalization by detecting words that contain consecutive
+uppercase letters in otherwise lowercase or normally capitalized text (for
+example, ``HEllo`` or ``CAmelCase``). Strings that contain capitalization in the
+source string are allowed to contain capitalization in the translation.
+
 .. _check-kabyle-characters:
 
 Non‑standard characters in Kabyle

weblate/checks/chars.py

@@ -8,6 +8,7 @@
 import unicodedata
 from typing import TYPE_CHECKING, ClassVar
 
+import regex
 from django.utils.translation import gettext_lazy
 
 from weblate.checks.base import CountingCheck, TargetCheck, TargetCheckParametrized
@@ -579,3 +580,23 @@ def get_fixup(self, unit: Unit) -> Iterable[FixupType] | None:
                 "gu",
             ),
         ]
+
+
+class MultipleCapitalCheck(TargetCheck):
+    """Multiple capitals check."""
+
+    check_id = "multiple_capital"
+    name = gettext_lazy("Multiple capitals")
+    description = gettext_lazy(
+        "Translation contains words with multiple misplaced capital letters."
+    )
+
+    # matches sequences of 2+ uppercase letters in *any language*
+    UPPERCASE_SEQ = regex.compile(r"\p{Lu}{2,}")
+
+    def check_single(self, source: str, target: str, unit: Unit) -> bool:
+        # Flag if any uppercase sequence is present in target and not present in the source
+        return (
+            self.UPPERCASE_SEQ.search(target) is not None
+            and not self.UPPERCASE_SEQ.search(source) is not None
+        )

weblate/checks/models.py

@@ -65,6 +65,7 @@ class WeblateChecksConf(AppConf):
         "weblate.checks.chars.EndEllipsisCheck",
         "weblate.checks.chars.EndSemicolonCheck",
         "weblate.checks.chars.MaxLengthCheck",
+        "weblate.checks.chars.MultipleCapitalCheck",
         "weblate.checks.chars.KashidaCheck",
         "weblate.checks.chars.PunctuationSpacingCheck",
         "weblate.checks.chars.KabyleCharactersCheck",

weblate/checks/tests/test_chars_checks.py

@@ -23,6 +23,7 @@
     KabyleCharactersCheck,
     KashidaCheck,
     MaxLengthCheck,
+    MultipleCapitalCheck,
     NewLineCountCheck,
     PunctuationSpacingCheck,
     ZeroWidthSpaceCheck,
@@ -300,7 +301,7 @@
 
     def setUp(self) -> None:
         super().setUp()
         self.test_single_good_matching = ("string\n\nstring", "string\n\nstring", "")
         self.test_failure_1 = ("string\nstring", "string\n\n\nstring", "")
         self.test_failure_2 = ("string\nstring\n\nstring", "string\nstring\nstring", "")
 
@@ -512,3 +513,34 @@
             ),
             "el",
         )
+
+
+class MultipleCapitalCheckTest(CheckTestCase):
+    check = MultipleCapitalCheck()
+
+    def setUp(self) -> None:
+        super().setUp()
+        self.test_good_matching = ("Hello", "Hello", "")
+        self.test_failure_1 = ("Hello", "HEllo", "")
+        self.test_failure_2 = ("camel case", "CAmelCase", "")
+        self.test_failure_3 = ("sigma", "ΣIGMA", "")
+
+    def test_acronyms(self) -> None:
+        self.do_test(
+            False,
+            (
+                "Welcome NATO",
+                "Bonjour OTAN",
+                "",
+            ),
+            "fr",
+        )
+        self.do_test(
+            False,
+            (
+                "Welcome NATO",
+                "Vítej NATO",
+                "",
+            ),
+            "cs",
+        )

weblate/settings_docker.py

@@ -1108,6 +1108,7 @@
     "weblate.checks.chars.EndEllipsisCheck",
     "weblate.checks.chars.EndSemicolonCheck",
     "weblate.checks.chars.MaxLengthCheck",
+    "weblate.checks.chars.MultipleCapitalCheck",
     "weblate.checks.chars.KashidaCheck",
     "weblate.checks.chars.PunctuationSpacingCheck",
     "weblate.checks.chars.KabyleCharactersCheck",