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make goyacc and units.y work again (minor tweaks).

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document goyacc a little.

R=rsc
CC=go-dev
http://go/go-review/1017024
This commit is contained in:
Rob Pike 2009-11-03 22:38:43 -08:00
parent 701440043b
commit 472576c615
4 changed files with 24 additions and 5 deletions
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2
src/cmd/goyacc/Makefile
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@ -11,7 +11,7 @@ GOFILES=\
include $(GOROOT)/src/Make.cmd
units: goyacc units.y
goyacc units.y
./goyacc units.y
$(GC) y.go
$(LD) -o units y.$O

23
src/cmd/goyacc/doc.go Normal file
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@ -0,0 +1,23 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
The program goyacc is a version of yacc written in Go and generating
as output a parser also in Go.
It is largely transliterated from the Inferno version written in Limbo
which in turn was largely transliterated from the Plan 9 version
written in C and documented at
http://plan9.bell-labs.com/magic/man2html/1/yacc
Yacc adepts will have no trouble adapting to this form of the tool.
The file units.y in this directory is a yacc grammar for a version of
the Unix tool units, also written in Go and largely transliterated
from the Plan 9 C version.
*/
package documentation

3
src/cmd/goyacc/goyacc.go
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@ -47,7 +47,6 @@ package main
import
(
"flag";
"io";
"fmt";
"bufio";
"os";
@ -1472,8 +1471,6 @@ cpyact(curprod []int, max int)
func
openup()
{
var buf string;
infile = flag.Arg(0);
finput = open(infile);
if(finput == nil) {

1
src/cmd/goyacc/units.y
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@ -26,7 +26,6 @@ package main
import
(
"flag";
"io";
"fmt";
"bufio";
"os";