From patchwork Sun Jan  6 19:56:32 2013
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [Bug, bootstrap/53607] opt-functions.awk --> "awk: There is a regular
 expression error."
Date: Sun, 06 Jan 2013 09:56:32 -0000
From: "Daniel Richard G." <skunk@iSKUNK.ORG>
X-Patchwork-Id: 209797
Message-Id: <1357502192.20273.140661174132361.1ECA78EE@webmail.messagingengine.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: gcc-patches@gcc.gnu.org, John David Anglin <danglin@gcc.gnu.org>

On Sun, 2013 Jan  6 18:45+0100, Andreas Schwab wrote:
>
> >  	sub(".* " name "\\(", "", flags)
> > -	if (flags ~ "^{")
> > +	if (flags ~ "^\{")
> >  	{
> > -		sub ("^{", "", flags)
> > +		sub ("^\{", "", flags)
> >  		sub("}\\).*", "", flags)
> 
> You need to escape the backslash inside a string.

Revised patch attached; awk behavior/output is same as before.


--Daniel


Index: gcc/opt-functions.awk
===================================================================
--- gcc/opt-functions.awk	(revision 194916)
+++ gcc/opt-functions.awk	(working copy)
@@ -62,9 +62,9 @@
 	if (flags !~ " " name "\\(")
 		return ""
 	sub(".* " name "\\(", "", flags)
-	if (flags ~ "^{")
+	if (flags ~ "^\\{")
 	{
-		sub ("^{", "", flags)
+		sub ("^\\{", "", flags)
 		sub("}\\).*", "", flags)
 	}
 	else