moved srcipts to include/ and changed function include()

include/myprint.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+BLACK='\033[0;30m'
+GRAY='\033[0;37m'
+WHITE='\033[0;97m'
+RED='\033[0;91m'
+GREEN='\033[0;92m'
+YELLOW='\033[0;93m'
+BLUE='\033[0;94m'
+PURPLE='\033[0;95m'
+CYAN='\033[0;96m'
+
+# prints text without special characters
+# use it to return string values from functions
+function safeprint {
+    printf "%s" "$@"
+}
+
+# prints text with special characters and resets color
+function myprint {
+    printf "${GRAY}$@${GRAY}\n"
+}
+
+function myprint_quiet {
+    local quiet=$1
+    local text="$2"
+    if [ "$quiet" != true ]; then
+        myprint "$text"
+    fi
+}
+
+# print message and exit
+function error {
+    myprint "${RED}$@"
+    exit 1
+}
+
+# asks a question with two options and returns 0 or 1
+# usage: `if ask_yn "do something?"`
+function ask_yn {
+    local answ=""
+    myprint "$@ [y/n]"
+    read -r answ
+    return $([[ "$answ" = [Yy] ]]); 
+}
+
+function char_multiply {
+    local character="$1"
+    local length="$2"
+    i=0
+    while [ $i -lt $length ]; do
+        printf $character
+        i=$((i+1))
+    done
+}
+
+# prints horizontal line occupying whole terminal row
+# https://en.wikipedia.org/wiki/Box-drawing_characters
+function print_hline {
+    local color="$1"
+    local character="$2"
+    if [ -z "$color" ]; then
+        color="${GRAY}"
+    fi
+    if [ -z "$character" ]; then
+        character="-";
+    fi
+    local term_width=$(tput cols)
+    local line_length=$((term_width - 1))
+    printf "${color}"
+    char_multiply "$character" $line_length
+    printf "${GRAY}\n"
+}
+
+# prints horizontal line occupying whole terminal row with a given label 
+function print_header {
+    local color="$1"
+    local character="$2"
+    local label="$3"
+    if [ -z "$color" ]; then
+        color="${GRAY}"
+    fi
+    if [ -z "$character" ]; then
+        character="-";
+    fi
+    local term_width=$(tput cols)
+    local label_length=${#label}
+    local line_characters_count=$((term_width - label_length - 2))
+    local left_line_length=$(( line_characters_count / 2 ))
+    local right_line_length=$(( left_line_length - 1 + line_characters_count % 2 ))
+    printf "${color}"
+    char_multiply "$character" $left_line_length
+    printf "[${label}]${color}"
+    char_multiply "$character" $right_line_length
+    printf "${GRAY}\n"
+}