diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/axlsx.rb | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/axlsx.rb b/lib/axlsx.rb index c5d26c2b..586562f6 100644 --- a/lib/axlsx.rb +++ b/lib/axlsx.rb @@ -136,10 +136,14 @@ module Axlsx # @param [String] str The string to process # @return [String] def self.sanitize(str) - str.delete!(CONTROL_CHARS) - str + if str.frozen? + str.delete(CONTROL_CHARS) + else + str.delete!(CONTROL_CHARS) + str + end end - + # If value is boolean return 1 or 0 # else return the value # @param [Object] value The value to process |