+++ /dev/null
-#!/bin/bash
-# Desc: Checks if arg is a float
-
-#==BEGIN Define script parameters==
-#===BEGIN Declare local script functions===
-yell() { echo "$0: $*" >&2; } # print script path and all args to stderr
-die() { yell "$*"; exit 111; } # same as yell() but non-zero exit status
-try() { "$@" || die "cannot $*"; } # runs args as command, reports args if command fails
-checkFlt() {
- # Desc: Checks if arg is a float
- # Usage: checkFlt arg
- # Input: arg: float
- # Output: - return code 0 (if arg is float)
- # - return code 1 (if arg is not float)
- # Example: if ! checkFlt $arg; then echo "not flt"; fi;
- # Version: 0.0.2
- # Depends: yell(), die(), bash 5.0.3
- # Ref/Attrib: JDB https://stackoverflow.com/a/12643073 float regex
- local returnState
-
- #===Process Arg===
- if [[ $# -ne 1 ]]; then
- die "ERROR:Invalid number of arguments:$#";
- fi;
-
- RETEST1='^[+-]?([0-9]+([.][0-9]*)?|[.][0-9]+)$'; # Regular Expression to test
- if [[ ! $1 =~ $RETEST1 ]] ; then
- returnState="false";
- else
- returnState="true";
- fi;
-
- #===Determine function return code===
- if [ "$returnState" = "true" ]; then
- return 0;
- else
- return 1;
- fi;
-} # Checks if arg is float
-
-#===END Declare local script functions===
-#==END Define script parameters==
-
-#==BEGIN test code==
-myVar1="4" ; echo "Test 1:Should succeed because int is float without decimal places or decimal.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="4.0" ; echo "Test 2:Should succeed because \"4.0\" is a float.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1=".0" ; echo "Test 3:Should succeed even if float lack whole numbers left of decimal.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="4." ; echo "Test 4:Should succeed even if float lacks decimal places right of decimal.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="14.0" ; echo "Test 5:Should succeed with multiple whole numbers to left of decimal."
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="." ; echo "Test 6:Should fail because neither whole numbers nor decimal places are present.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="4"; myVar2="5"; echo "Test 7:Should fail because multiple numbers are provided.";
-(if checkFlt "$myVar1" "$myVar2"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="4 5"; echo "Test 8:Should fail because multiple numbers are provided.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="4.4.4"; echo "Test 9:Should fail because a float should contain only one decimal.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="foo"; echo "Test 10:Should fail because floats should only contain numbers and decimal characters."
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1="foo"; myVar2="bar"; myVar3="baz"; echo "Test 11: Should fail because multiple arguments provided.";
-(if checkFlt "$myVar1" "$myVar2" "$myVar3"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-
-myVar1=""; echo "Test 12: Should fil because empty string.";
-(if checkFlt "$myVar1"; then yell "success"; else yell "fail"; fi;) & sleep 1;
-#==END test code==
-
-# Author: Steven Baltakatei Sandoval
-# License: GPLv3+