Feb 15th 2023 update

external/graphqlparser/ast/casing.py

@@ -0,0 +1,26 @@
+# Copyright 2019-present, GraphQL Foundation
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+def title(s):
+  '''Capitalize the first character of s.'''
+  return s[0].capitalize() + s[1:]
+
+
+def camel(s):
+  '''Lowercase the first character of s.'''
+  return s[0].lower() + s[1:]
+
+
+def snake(s):
+  '''Convert from title or camelCase to snake_case.'''
+  if len(s) < 2:
+    return s.lower()
+  out = s[0].lower()
+  for c in s[1:]:
+    if c.isupper():
+      out += '_'
+      c = c.lower()
+    out += c
+  return out