Spinal Case to Camel Case

Question

My question is pretty much the opposite of this: linux bash, camel case string to separate by dash

Pretty much looking to take some-string-like-this to SomeStringLikeThis.

Anyone got some sed magic or other means of doing this easily?

As a side note, part of me thinks that as popular as Bash is, that there might be a library out there that could help with conversions like this... I haven't found one though. If you know of one, please let me know. e.g. a library that would handle common string manipulations/conversion between standard naming styles, such as spinal to underscore, underscore to camel, camel to spinal, etc.

Answer 1

GNU sed

This works with GNU sed:

sed -r 's/(^|-)(\w)/\U\2/g'

Match the start of the line or a - followed by an alphanumeric character and use \U to make the character uppercase.

And here's how you can operate on a variable with it and assign the result to another variable:

name_upper=$(sed -r 's/(^|-)(\w)/\U\2/g' <<<"$name_spinal")

Perl

It's almost identical in perl:

perl -pe 's/(^|-)(\w)/\U$2/g'

Native bash

Just for fun, here's a way you could do it in native bash:

spinal_to_upper() {
    IFS=- read -ra str <<<"$1"
    printf '%s' "${str[@]^}"
}

spinal_to_upper "some-string-like-this"