-from sqlparse.tokens import Name
+from sqlparse.sql import Comment
+from sqlparse import tokens as T
+
+
+def _is_directive_token(token):
+ if isinstance(token, Comment):
+ subtokens = token.tokens
+ if subtokens:
+ comment = subtokens[0]
+ if comment.ttype is T.Comment.Multiline and \
+ comment.value.startswith('/*!'):
+ return True
+ return False
+
+
+def is_directive_statement(statement):
+ tokens = statement.tokens
+ if not _is_directive_token(tokens[0]):
+ return False
+ if tokens[-1].ttype is not T.Punctuation or tokens[-1].value != ';':
+ return False
+ for token in tokens[1:-1]:
+ if token.ttype not in (T.Newline, T.Whitespace):
+ return False
+ return True
+
+
+def remove_directives(statement):
+ """Remove /*! directives */ from the first-level"""
+ new_tokens = []
+ for token in statement.tokens:
+ if _is_directive_token(token):
+ continue
+ new_tokens.append(token)
+ statement.tokens = new_tokens
def requote_names(token_list):
"""Remove backticks, quote non-lowercase identifiers"""
for token in token_list.flatten():
- if token.ttype is Name:
+ if token.ttype is T.Name:
value = token.value
if (value[0] == "`") and (value[-1] == "`"):
value = value[1:-1]
token.normalized = token.value = value
else:
token.normalized = token.value = '"%s"' % value
+
+
+def process_statement(statement):
+ remove_directives(statement)
+ requote_names(statement)