Improve portability

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 6 insertions, 6 deletions

diff --git a/util/getdefs b/util/getdefs
index 43c0d0d..aa06947 100755
--- a/util/getdefs
+++ b/util/getdefs
@@ -5,20 +5,20 @@ set -e
 
 text="$(cat)"
 
-expr='\(0x[0-9a-fA-F]\+\|[0-9]\+\)[Ll]*[Uu]*[Ll]*'
-expr='\(\*\|\/\|[+~-]\|<<\|>>\)\?\s*'"$expr"
+expr='\(0x[0-9a-fA-F]\{1,\}\|[0-9]\{1,\}\)[Ll]*[Uu]*[Ll]*'
+expr='\(\*\|\/\|[+~-]\|<<\|>>\)\{0,1\}[[:space:]]*'"$expr"
 expr='\('"$expr"'\|(\|)\)'
-expr='\s*\('"$expr"'\s*\)\+'
+expr='[[:space:]]*\('"$expr"'[[:space:]]*\)\{1,\}'
 
 filter () {
-	sed -n 's/^\s*#\s*define\s\+\('"$1"'\)\s\+\('"$expr"'\)\s*\(\/.*\)\?$/\1 \2/p'
+	sed -n 's/^[[:space:]]*#[[:space:]]*define[[:space:]]\{1,\}\('"$1"'\)[[:space:]]\{1,\}\('"$expr"'\)[[:space:]]*\(\/.*\)\{0,1\}$/\1 \2/p'
 }
 
 if test $# = 0; then
-	printf '%s\n' "$text" | filter '[A-Z0-9_]\+'
+	printf '%s\n' "$text" | filter '[A-Z0-9_]\{1,\}'
 else
 	for prefix; do
-		printf '%s\n' "$text" | filter "$prefix"'_[A-Z0-9_]\+'
+		printf '%s\n' "$text" | filter "$prefix"'_[A-Z0-9_]\{1,\}'
 	done
 fi | \
 while read name value; do