add str.splitlines method

The new splitlines method on str is intended to replace usage of
fs.read('whatever').strip().split('\n').
The problem with the .strip().split() approach is that it doesn't have a
way to represent empty lists (an empty string becomes a list with one
empty string, not an empty list), and it doesn't handle Windows-style
line endings.

1 files changed, 7 insertions, 0 deletions

diff --git a/mesonbuild/interpreter/primitives/string.py b/mesonbuild/interpreter/primitives/string.py
index d9f6a06..d4daab9 100644
--- a/mesonbuild/interpreter/primitives/string.py
+++ b/mesonbuild/interpreter/primitives/string.py
@@ -38,6 +38,7 @@ class StringHolder(ObjectHolder[str]):
             'join': self.join_method,
             'replace': self.replace_method,
             'split': self.split_method,
+            'splitlines': self.splitlines_method,
             'strip': self.strip_method,
             'substring': self.substring_method,
             'to_int': self.to_int_method,
@@ -105,6 +106,12 @@ class StringHolder(ObjectHolder[str]):
         return re.sub(r'@(\d+)@', arg_replace, self.held_object)
 
     @noKwargs
+    @noPosargs
+    @FeatureNew('str.splitlines', '1.2.0')
+    def splitlines_method(self, args: T.List[TYPE_var], kwargs: TYPE_kwargs) -> T.List[str]:
+        return self.held_object.splitlines()
+
+    @noKwargs
     @typed_pos_args('str.join', varargs=str)
     def join_method(self, args: T.Tuple[T.List[str]], kwargs: TYPE_kwargs) -> str:
         return self.held_object.join(args[0])