Ripgrep: Add option to disable regex search and search only for exact matches

[hauleth]

This option could also accept --smart-case and --ignore-case options with would allow to case independent searches.

[BurntSushi]

@hauleth Why doesn't the -F/--fixed-literals flag, which is named after the corresponding flag in grep, work for your use case?

[hauleth]

Oh, I've must missed that option. Sorry for this fuss.

[cedricvanrompay]

I would suggest to add this to the FAQ or to add a section for it in the user guide because it's pretty hard to find in the user guide right now when you don't know the name of the option already.