helper/string.inc


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# usage: VAR=$(trim "   string ")
trim() {
    local var=$1
    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
    echo -n "$var"
}

# Inline version of trim, use when piping
itrim () {
	sed -r 's/^\s+//g;s/\s+$//g'
}

# usage: CANONICALIZED_STRING=$(canonalize <path>)
#        usage with relative path requires you to be in the correct directory.
canonicalize() {
	cd -P -- "$(dirname -- "$1")" && printf '%s\n' "$(pwd -P)/$(basename -- "$1")"
}

escape_search() {
	sed -e 's/[]\/()$*.^|[]/\\&/g'

}

escape_replace() {
	sed -e 's/[\/&]/\\&/g'
}

tolower () {
	tr '[A-Z]' '[a-z]'
}

toupper () {
	tr '[a-z]' '[A-Z]'
}