The command block commands require extra escape

[huawenyu]

Thanks for the good project, which can help us make better/big-scale bash script.
When port the exist bash script to this new script, found require extra escape \, for example:
The command from bash script like:

grep -E 'NOT|PRODUCT-.*-build02.*\.out\.tgz '

If copy to hush, should be:

grep -E 'NOT|VMWARE-.*-build02.*\\.out\\.tgz '

Could we don't need this extra escape, which can help us copy the command between hush with bash easier?

[gahag]

This happens because we allow escape sequences inside single quotes in Hush. In Bash, you can't do something like:

echo '\'this is $ingle quoted\''

But in Hush, you can. I guess that in practice this is not really that significant, because one can do:

echo "'"'this is $single quoted'"'"

And this will work in both.

I guess we can consider to remove escape sequences from single quote literals, and then your example would work seamlessly. Thanks for the suggestion, PRs welcome.