I will use ls output for pipe input, so I need to escape the file name. when I use GNU ls, It works well. what's the equivalent in BSD ls? I hoping the output is like this.
$ gls --quoting-style escape t*1
text\ 1 text1
Why are/were you trying to use ls in a pipeline? You should probably be using find (maybe with -print0 and xargs -0, or -exec).
I suppose you could use ls -1f and then run the output through vis (or some similar filter) with some appropriate options to add the necessary quoting or escaping of your choice, but without knowing what you are feeding filenames into, and what (if any) other options you would want to use with ls, it's impossible to give much better guidance.