#805 Ignore @todo and @fixme markers in comment-not-capitalized lint

src/main/resources/org/eolang/lints/comments/comment-not-capitalized.xsl

@@ -10,7 +10,7 @@
   <xsl:template match="/">
     <xsl:variable name="min" select="32"/>
     <defects>
-      <xsl:for-each select="/object/comments/comment[not(matches(., '^[A-Z]'))]">
+      <xsl:for-each select="/object/comments/comment[not(matches(., '^[A-Z]')) and not(matches(., '^@(todo|fixme)([^A-Z]|$)', 'i'))]">
         <xsl:element name="defect">
           <xsl:variable name="line" select="eo:lineno(@line)"/>
           <xsl:attribute name="line">

src/main/resources/org/eolang/motives/comments/comment-not-capitalized.md

@@ -17,3 +17,12 @@ Correct:
 [] > foo
   42 > @
 ```
+
+Comments that begin with a tracker marker such as `@todo` or `@fixme`
+(case-insensitive) are exempt from this rule:
+
+```eo
+# @todo #123:30min Add validation for negative input.
+[] > foo
+  42 > @
+```

src/test/resources/org/eolang/lints/packs/single/comment-not-capitalized/allows-fixme-marker.yaml

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+sheets:
+  - /org/eolang/lints/comments/comment-not-capitalized.xsl
+asserts:
+  - /defects[count(defect[@severity='warning'])=0]
+input: |
+  # @fixme this needs revisiting once the parser supports X.
+  [] > foo
+    42 > @

src/test/resources/org/eolang/lints/packs/single/comment-not-capitalized/allows-todo-case-insensitive.yaml

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+sheets:
+  - /org/eolang/lints/comments/comment-not-capitalized.xsl
+asserts:
+  - /defects[count(defect[@severity='warning'])=0]
+input: |
+  # @TODO #999:30min uppercase marker is also accepted.
+  [] > foo
+    42 > @

src/test/resources/org/eolang/lints/packs/single/comment-not-capitalized/allows-todo-marker.yaml

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: Copyright (c) 2016-2026 Objectionary.com
+# SPDX-License-Identifier: MIT
+---
+sheets:
+  - /org/eolang/lints/comments/comment-not-capitalized.xsl
+asserts:
+  - /defects[count(defect[@severity='warning'])=0]
+input: |
+  # @todo #4475:35min Enable this feature after resize is implemented.
+  [] > foo
+    42 > @