5l, 6l, 8l: drop use of ed during build

build runs with chmod 0 /bin/ed now

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4635071

doc/install.html

@@ -81,8 +81,8 @@ To build it, you need these programs installed:
 <li>the standard C libraries, 
 <li>the parser generator Bison,
 <li>GNU <tt>make</tt> (version 3.81 or later),
-<li><tt>awk</tt>, and 
-<li>the text editor <tt>ed</tt>.
+and
+<li><tt>awk</tt>.
 </ul>
 </p>
 

src/cmd/5l/mkenam

@@ -28,18 +28,18 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-ed - ../5l/5.out.h <<'!'
-v/^	A/d
-,s/^	A/	"/
-g/ .*$/s///
-,s/,*$/",/
-1i
-char*	anames[] =
-{
-.
-$a
-};
-.
-w enam.c
-Q
-!
+awk '
+BEGIN {
+	print "char*	anames[] ="
+	print "{"
+}
+
+/^	A/ {
+	name=$1
+	sub(/,/, "", name)
+	sub(/^A/, "", name)
+	print "\t\"" name "\","
+}
+
+END { print "};" }
+' ../5l/5.out.h >enam.c

src/cmd/6l/mkenam

@@ -28,18 +28,18 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-/bin/ed - ../6l/6.out.h <<'!'
-v/^	A/d
-,s/^	A/	"/
-g/ .*$/s///
-,s/,*$/",/
-1i
-char*	anames[] =
-{
-.
-$a
-};
-.
-w enam.c
-Q
-!
+awk '
+BEGIN {
+	print "char*	anames[] ="
+	print "{"
+}
+
+/^	A/ {
+	name=$1
+	sub(/,/, "", name)
+	sub(/^A/, "", name)
+	print "\t\"" name "\","
+}
+
+END { print "};" }
+' ../6l/6.out.h >enam.c

src/cmd/8l/mkenam

@@ -28,18 +28,18 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-ed - ../8l/8.out.h <<'!'
-v/^	A/d
-,s/^	A/	"/
-g/ .*$/s///
-,s/,*$/",/
-1i
-char*	anames[] =
-{
-.
-$a
-};
-.
-w enam.c
-Q
-!
+awk '
+BEGIN {
+	print "char*	anames[] ="
+	print "{"
+}
+
+/^	A/ {
+	name=$1
+	sub(/,/, "", name)
+	sub(/^A/, "", name)
+	print "\t\"" name "\","
+}
+
+END { print "};" }
+' ../8l/8.out.h >enam.c

src/env.bash

@@ -55,7 +55,6 @@ PROGS="
 	cp
 	cut
 	echo
-	ed
 	egrep
 	gcc
 	grep