Add line continuation highlighting

Author: deathaxe

PIP Requirements.sublime-syntax

@@ -76,6 +76,11 @@ contexts:
     - include: versions
     - include: variables
 
+  prototype:
+    - match: (\\)\n
+      captures:
+        1: punctuation.separator.continuation.line.pip-requirements
+
   comments:
     - match: \#+
       scope: punctuation.definition.comment.pip-requirements

tests/syntax_test_pip_requirements.txt

@@ -123,7 +123,9 @@
 # ^^^^ variable.parameter.option.pip-requirements - punctuation
 #      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ meta.hash.pip-requirements string.unquoted.hash.pip-requirements
 
-    --hash=sha256:c2fd55a7d7a3863cba1a013e4e2414658b1d07b6bc57b3919e0c63c9abb99849
+coverage==7.2.7 ; python_full_version < '3.8' \
+#                                             ^ punctuation.separator.continuation.line.pip-requirements
+    --hash=sha256:c2fd55a7d7a3863cba1a013e4e2414658b1d07b6bc57b3919e0c63c9abb99849 \
 #^^^ meta.expect-option-or-package.pip-requirements
 #   ^^^^^^ variable.parameter.option.pip-requirements
 #   ^^ punctuation.definition.variable.pip-requirements
@@ -132,6 +134,7 @@
 #          ^^^^^^ storage.modifier.hash.pip-requirements
 #                ^ punctuation.separator.modifier.pip-requirements
 #                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ string.unquoted.hash.pip-requirements
+#                                                                                  ^ punctuation.separator.continuation.line.pip-requirements
 
 ###[ PACKAGES ]################################################################