From: Steven Baltakatei Sandoval Date: Tue, 2 Nov 2021 22:37:37 +0000 (+0000) Subject: feat(u/bktemp-checkFlt):Add bash function to check for floats X-Git-Tag: 0.5.0~33 X-Git-Url: https://zdv2.bktei.com/gitweb/BK-2020-03.git/commitdiff_plain/1eb63ec23b162c8f094e08bbb3706349389c1dd5?hp=-c feat(u/bktemp-checkFlt):Add bash function to check for floats --- 1eb63ec23b162c8f094e08bbb3706349389c1dd5 diff --git a/unitproc/bktemp-checkFlt b/unitproc/bktemp-checkFlt new file mode 100644 index 0000000..530ff0e --- /dev/null +++ b/unitproc/bktemp-checkFlt @@ -0,0 +1,80 @@ +#!/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: checkInt arg + # Input: arg: float + # Output: - return code 0 (if arg is float) + # - return code 1 (if arg is not float) + # Example: if ! checkInt $arg; then echo "not flt"; fi; + # Version: 0.0.1 + # 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 integer + +#===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; +#==END test code== + +# Author: Steven Baltakatei Sandoval +# License: GPLv3+