fluxion/lib/IOUtils.sh

#!/bin/bash

if [ "$IOUtilsVersion" ]; then return 0; fi
readonly IOUtilsVersion="1.0"

IOUtilsHeader="[x] ================================ [x]"
IOUtilsQueryMark="[-] "
IOUtilsPrompt="[$USER@$HOSTNAME]> "

if [ ! "$ArrayUtilsVersion" ]; then source lib/ArrayUtils.sh; fi

function io_input_choice() {
	local __io_input_choice__choice
	until [ ! -z "$__io_input_choice__choice" ]; do
		echo -ne "$IOUtilsPrompt"

		local __io_input_choice__input
		read __io_input_choice__input
		
		local __io_input_choice__choices
		for __io_input_choice__choices in ${@}; do
			array_contains $__io_input_choice__choices "$__io_input_choice__input"
			if [ $? -eq 0 ]; then
				__io_input_choice__choice="$__io_input_choice__input"
				break
			fi
		done
	done

	IOInputChoice=$__io_input_choice__choice
}

function io_dynamic_output() {
	eval 'echo -ne "'${@}'"'
}

function io_input_enumerated_choice() {
	local __io_input_enumerated_choice__choices=("${!1}")
	local __io_input_enumerated_choice__indexes=($(seq ${#__io_input_numeric_choice__choices[@]}))
	io_input_choice __io_input_enumerated_choice__indexes[@]
	IOInputEnumeratedChoice=${__io_input_enumerated_choice__choices[$IOInputChoice]}
}

# This function outputs formatted lines of fields.
# The function takes an output file (like stdout),
# a "printf format string," and a variable number
# of indirect-expansion passed arrays (reference).
# NOTICE: At least the first array must be passed!
# Example: /dev/stdout "%s is %s." name[@] mood[@]
function io_output_format_fields() {
	# Determine the amount of arguments passed.
	local __io_output_format_fields__argument_count=${#@}

	# Load locally by indirect expansion, ${! ... }, 
	# and mangle the variable number argument arrays.
	local __io_output_format_fields__i
	for ((__io_output_format_fields__i = 3; \
		  __io_output_format_fields__i <= __io_output_format_fields__argument_count; \
		  __io_output_format_fields__i++)); do
		eval "local __io_output_format_fields__field$__io_output_format_fields__i=(\"\${!$__io_output_format_fields__i}\")"
	done

	# Determine the amount of records/lines to print.
	# Notice at least the first array must be passed.
	local __io_output_format_fields__record_count=${#__io_output_format_fields__field3[@]}

	for ((__io_output_format_fields__i = 0; \
		  __io_output_format_fields__i < __io_output_format_fields__record_count; \
		  __io_output_format_fields__i++)); do
		local __io_output_format_fields__values="\"\${__io_output_format_fields__field"$( \
			  seq -s "[$__io_output_format_fields__i]}\" \"\${__io_output_format_fields__field" 3 $__io_output_format_fields__argument_count \
			  )"[$__io_output_format_fields__i]}\""
		eval "printf \"$2\" $__io_output_format_fields__values > $1"
	done
}

function io_query_format_fields() {
	# Assure we've got required parameters.
	if [ ${#@} -lt 2 ]; then
		return 1
	fi

	local __io_query_format_fields__argument_count=${#@}

	local __io_query_format_fields__query="$1"
	local __io_query_format_fields__format="$2"

	# Load locally by indirect expansion, ${! ... }, 
	# and mangle the variable number argument arrays.
	local __io_query_format_fields__i
	for ((__io_query_format_fields__i = 3; \
		  __io_query_format_fields__i <= __io_query_format_fields__argument_count; \
		  __io_query_format_fields__i++)); do
		eval "local __io_query_format_fields__f$__io_query_format_fields__i=(\"\${!$__io_query_format_fields__i}\")"
	done

	local __io_query_format_fields__record_count=${#__io_query_format_fields__f3[@]}
	local __io_query_format_fields__indexes=($(seq $__io_query_format_fields__record_count))

	if [ ! -z "$1" ]; then
		if [ "`type -t $(echo -e "$IOUtilsHeader" | grep -vE '\s')`" = "function" ]; then $IOUtilsHeader;
		else echo -e "$IOUtilsHeader"; fi

		echo -e "$__io_query_format_fields__query"
		echo
	fi

	io_output_format_fields /dev/stdout "$__io_query_format_fields__format" __io_query_format_fields__indexes[@] ${@:3}

	echo

	io_input_choice __io_query_format_fields__indexes[@]

	IOQueryFormatFields=()
	for ((__io_query_format_fields__i = 3; \
		  __io_query_format_fields__i <= __io_query_format_fields__argument_count; \
		  __io_query_format_fields__i++)); do
		eval "IOQueryFormatFields[${#IOQueryFormatFields[@]}]=\${__io_query_format_fields__f$__io_query_format_fields__i[IOInputChoice - 1]}"
	done
}

function io_query_choice() {
	# Assure we've got required parameters.
	if [ ${#@} -lt 2 ]; then
		return 1
	fi
 
	__io_query_choice__query=$([ -z "$1" ] && echo -n "" || echo -ne "$FLUXIONVLine $1\n")
	io_query_format_fields "$__io_query_choice__query" "\t$CRed[$CYel%d$CRed]$CClr %b\n" $2

	IOQueryChoice="${IOQueryFormatFields[0]}"
}

function io_query_file() {
	if [ ${#@} -lt 2 ]; then
		return 1
	fi

	local __io_query_file__options

	# List a line per line and redirect output.
	# readarray __io_query_file__options < $2
	mapfile __io_query_file__options < $2

	# Strip newline characters from array elements
	__io_query_file__options=("${__io_query_file__options[@]/$'\n'}")

	io_query_choice "$1" __io_query_file__options[@]

	IOQueryFile=$IOQueryChoice
}

# FLUXSCRIPT END