diff --git a/format.sh b/format.sh
index b901144..66d9c1f 100755
--- a/format.sh
+++ b/format.sh
@@ -1,58 +1,60 @@
 #!/bin/bash
 
-utility="clang-format"
-utility_version="$("$utility" --version 2>/dev/null)" || {
-  echo "$utility not found in path!"
-  exit 1
+validate() {
+	utility="clang-format"
+	utility_version="$("$utility" --version 2>/dev/null)" || {
+		echo "$utility not found in path!"
+		exit 1
+	}
+
+	regex="version ([0-9]+).([0-9]+).([0-9]+)"
+	declare -i major=0
+	declare -i minor=0
+	declare -i patch=0
+	declare -i required_major=9
+	declare -i required_minor=0
+	declare -i required_patch=0
+
+	if [[ "$utility_version" =~ $regex ]]; then
+		major="${BASH_REMATCH[1]}"
+		minor="${BASH_REMATCH[2]}"
+		patch="${BASH_REMATCH[3]}"
+	fi
+
+	if ((major < required_major)) || ((minor < required_minor)) || ((patch < required_patch)); then
+		echo "$utility $required_major.$required_minor.$required_patch required, but is $major.$minor.$patch"
+		exit 1
+	fi
 }
 
-regex="version ([0-9]+).([0-9]+).([0-9]+)"
-declare -i major=0
-declare -i minor=0
-declare -i patch=0
-declare -i required_major=9
-declare -i required_minor=0
-declare -i required_patch=0
-
-if [[ "$utility_version" =~ $regex ]]; then
-  major="${BASH_REMATCH[1]}"
-  minor="${BASH_REMATCH[2]}"
-  patch="${BASH_REMATCH[3]}"
-fi
-
-if ((major < required_major)) || ((minor < required_minor)) || ((patch < required_patch)); then
-  echo "$utility $required_major.$required_minor.$required_patch required, but is $major.$minor.$patch"
-  exit 1
-fi
-
 help() {
-  echo "Usage: $0 [OPTION]..."
-  echo "Formats source code in the repository, applying formatting in place by default"
-  echo ""
-  echo "-h, --help        Print Help"
-  echo "-d, --dry-run     Dry run formatters, returning 0 when code passes, 1 otherwise"
-  echo ""
-  echo "Exit status:"
-  echo "0 if code required no formatting"
-  echo "non-zero exit status otherwise"
+	echo "Usage: $0 [OPTION]..."
+	echo "Formats source code in the repository, applying formatting in place by default"
+	echo ""
+	echo "-h, --help        Print Help"
+	echo "-d, --dry-run     Dry run formatters, returning 0 when code passes, 1 otherwise"
+	echo ""
+	echo "Exit status:"
+	echo "0 if code required no formatting"
+	echo "non-zero exit status otherwise"
 }
 
 dry_run() {
-  find runtime \
-    \( -path "runtime/thirdparty" -o -path "runtime/tests/gocr" -o -path "runtime/tests/TinyEKF" -o -path "runtime/tests/CMSIS_5_NN" -o -path "runtime/tests/sod" -o -path "runtime/tests/**/thirdparty" \) -prune -false -o \
-    -type f \( -iname \*.h -o -iname \*.c -o -iname \*.s \) -print |
-    xargs clang-format -Werror -n -ferror-limit=0
+	find runtime \
+		\( -path "runtime/thirdparty" -o -path "runtime/tests/gocr" -o -path "runtime/tests/TinyEKF" -o -path "runtime/tests/CMSIS_5_NN" -o -path "runtime/tests/sod" -o -path "runtime/tests/**/thirdparty" \) -prune -false -o \
+		-type f \( -iname \*.h -o -iname \*.c -o -iname \*.s \) -print |
+		xargs clang-format -Werror -n -ferror-limit=0
 }
 
 format() {
-  find runtime \
-    \( -path "runtime/thirdparty" -o -path "runtime/tests/gocr" -o -path "runtime/tests/TinyEKF" -o -path "runtime/tests/CMSIS_5_NN" -o -path "runtime/tests/sod" -o -path "runtime/tests/**/thirdparty" \) -prune -false -o \
-    -type f \( -iname \*.h -o -iname \*.c -o -iname \*.s \) -print |
-    xargs clang-format -i
+	find runtime \
+		\( -path "runtime/thirdparty" -o -path "runtime/tests/gocr" -o -path "runtime/tests/TinyEKF" -o -path "runtime/tests/CMSIS_5_NN" -o -path "runtime/tests/sod" -o -path "runtime/tests/**/thirdparty" \) -prune -false -o \
+		-type f \( -iname \*.h -o -iname \*.c -o -iname \*.s \) -print |
+		xargs clang-format -i
 }
 
 case $1 in
-  "-h" | "--help") help ;;
-  "-d" | "--dry-run") dry_run ;;
-  "") format ;;
+"-h" | "--help") help ;;
+"-d" | "--dry-run") validate && dry_run ;;
+"") validate && format ;;
 esac