From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Tue, 5 Feb 2019 23:49:47 +0000 (+0100)
Subject: xlat/gen.sh: speedup, part 3
X-Git-Tag: v5.0~39
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=85848755aa409ab9dd6f63f1772e21371ec45e18;p=strace

xlat/gen.sh: speedup, part 3

* xlat/gen.sh (cond_def): Use parameter substitution instead of sed
for xlat line parsing.

Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
---

diff --git a/xlat/gen.sh b/xlat/gen.sh
index 05527a93..0a9c9736 100755
--- a/xlat/gen.sh
+++ b/xlat/gen.sh
@@ -26,12 +26,16 @@ cond_def()
 	line="$1"; shift
 
 	local val
-	val="$(printf %s "$line" |
-		sed -r -n 's/^([[:alpha:]_][[:alnum:]_]*).*$/\1/p')"
-
-	local def
-	def="$(printf %s "${line}" |
-		sed -r -n 's/^[^[:space:]]+[[:space:]]+([^[:space:]].*)$/\1/p')"
+	val="${line%%[!A-Za-z0-9_]*}"
+
+	local t def=
+	t="${line#*[	 ]}"
+	if [ "$line" != "$t" ]; then
+		while [ "$def" != "$t" ]; do
+			def="$t"
+			t="${t##[	 ]}"
+		done
+	fi
 
 	if [ -n "$def" ]; then
 		printf "%s\n" \