fix: validate-weather-data corrupts match data

string-match modifies global match data as a side effect. A predicate
should not do this. Use string-match-p instead.

1 files changed, 1 insertions, 1 deletions

diff --git a/wttrin.el b/wttrin.el
index 0af5e50..d95f0c2 100644
--- a/wttrin.el
+++ b/wttrin.el
@@ -350,7 +350,7 @@ Returns the path to the saved file."
 (defun wttrin--validate-weather-data (raw-string)
   "Check if RAW-STRING has valid weather data.
 Return t if valid, nil if missing or contains errors."
-  (not (or (null raw-string) (string-match "ERROR" raw-string))))
+  (not (or (null raw-string) (string-match-p "ERROR" raw-string))))
 
 (defun wttrin--process-weather-content (raw-string)
   "Process RAW-STRING: apply ANSI filtering and remove verbose lines.