diff options
| -rw-r--r-- | synapse/metrics/metric.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/synapse/metrics/metric.py b/synapse/metrics/metric.py index 1a09e417c9..fbba94e633 100644 --- a/synapse/metrics/metric.py +++ b/synapse/metrics/metric.py @@ -301,9 +301,17 @@ class MemoryUsageMetric(object): ] -def _escape_character(c): +def _escape_character(m): """Replaces a single character with its escape sequence. + + Args: + m (re.MatchObject): A match object whose first group is the single + character to replace + + Returns: + str """ + c = m.group(1) if c == "\\": return "\\\\" elif c == "\"": @@ -316,4 +324,4 @@ def _escape_character(c): def _escape_label_value(value): """Takes a label value and escapes quotes, newlines and backslashes """ - return re.sub(r"([\n\"\\])", lambda m: _escape_character(m.group(1)), value) + return re.sub(r"([\n\"\\])", _escape_character, value) |