1
0
mirror of https://github.com/golang/go synced 2024-11-25 01:17:56 -07:00

Update goyacc to new syntax, still with semicolons.

Update units.y too.
Fixes #417.

R=rsc
CC=golang-dev
https://golang.org/cl/176063
This commit is contained in:
Rob Pike 2009-12-14 06:34:51 +11:00
parent bedfc2c2f1
commit f646296185
2 changed files with 37 additions and 67 deletions

View File

@ -2195,7 +2195,7 @@ func output() {
fmt.Fprintf(ftable, "const\tYYNPROD\t= %v\n", nprod);
fmt.Fprintf(ftable, "const\tYYPRIVATE\t= %v\n", PRIVATE);
fmt.Fprintf(ftable, "var\tYYTOKENNAMES []string\n");
fmt.Fprintf(ftable, "var\tYYSTATES\n[]string\n");
fmt.Fprintf(ftable, "var\tYYSTATES []string\n");
}
//
@ -2869,7 +2869,7 @@ func others() {
putrune(ftable, '\n')
}
}
fmt.Fprintf(ftable, "%4d\n };\n", 0);
fmt.Fprintf(ftable, "%4d,\n };\n", 0);
// copy parser text
c = getrune(finput);
@ -3123,10 +3123,7 @@ func exit(status int) {
os.Exit(status);
}
var yaccpar =
// from here to the end of the file is
// a single string containing the old yaccpar file
`
var yaccpar = `
/* parser for yacc output */
var Nerrs = 0 /* number of errors */
@ -3135,8 +3132,7 @@ var Debug = 0
const YYFLAG = -1000
func
Tokname(yyc int) string
{
Tokname(yyc int) string {
if yyc > 0 && yyc <= len(Toknames) {
if Toknames[yyc-1] != "" {
return Toknames[yyc-1];
@ -3146,8 +3142,7 @@ Tokname(yyc int) string
}
func
Statname(yys int) string
{
Statname(yys int) string {
if yys >= 0 && yys < len(Statenames) {
if Statenames[yys] != "" {
return Statenames[yys];
@ -3157,8 +3152,7 @@ Statname(yys int) string
}
func
lex1() int
{
lex1() int {
var yychar int;
var c int;
@ -3197,8 +3191,7 @@ out:
}
func
Parse() int
{
Parse() int {
var yyj, yystate, yyn, yyg, yyxi, yyp int;
var yychar int;
var yypt, yynt int;

View File

@ -40,16 +40,14 @@ const
Maxe = 695; // log of largest number
)
type Node
struct
{
type
Node struct {
vval float64;
dim [Ndim]int8;
}
type Var
struct
{
type
Var struct {
name string;
node Node;
}
@ -220,8 +218,7 @@ expr0:
%%
func
Lex() int
{
Lex() int {
var c, i int;
c = peekrune;
@ -287,8 +284,7 @@ numb:
}
func
main()
{
main() {
var file string;
flag.BoolVar(&vflag, "v", false, "verbose");
@ -369,8 +365,7 @@ main()
* meaning. rest are usable as names
*/
func
ralpha(c int) bool
{
ralpha(c int) bool {
switch c {
case 0, '+', '-', '*', '/', '[', ']', '(', ')',
'^', ':', '?', ' ', '\t', '.', '|', '#',
@ -384,8 +379,7 @@ ralpha(c int) bool
* number forming character
*/
func
rdigit(c int) bool
{
rdigit(c int) bool {
switch c {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'.', 'e', '+', '-':
@ -395,8 +389,7 @@ rdigit(c int) bool
}
func
Error(s string, v ...)
{
Error(s string, v ...) {
/*
* hack to intercept message from yaccpar
@ -417,8 +410,7 @@ Error(s string, v ...)
}
func
add(c,a,b *Node)
{
add(c,a,b *Node) {
var i int;
var d int8;
@ -433,8 +425,7 @@ add(c,a,b *Node)
}
func
sub(c,a,b *Node)
{
sub(c,a,b *Node) {
var i int;
var d int8;
@ -449,8 +440,7 @@ sub(c,a,b *Node)
}
func
mul(c,a,b *Node)
{
mul(c,a,b *Node) {
var i int;
for i=0; i<Ndim; i++ {
@ -460,8 +450,7 @@ mul(c,a,b *Node)
}
func
div(c,a,b *Node)
{
div(c,a,b *Node) {
var i int;
for i=0; i<Ndim; i++ {
@ -471,8 +460,7 @@ div(c,a,b *Node)
}
func
xpn(c,a *Node, b int)
{
xpn(c,a *Node, b int) {
var i int;
*c = one;
@ -488,8 +476,7 @@ xpn(c,a *Node, b int)
}
func
specialcase(c,a,b *Node) bool
{
specialcase(c,a,b *Node) bool {
var i int;
var d, d1, d2 int8;
@ -536,8 +523,7 @@ specialcase(c,a,b *Node) bool
}
func
printdim(str string, d, n int) string
{
printdim(str string, d, n int) string {
var v *Var;
if n != 0 {
@ -560,9 +546,8 @@ printdim(str string, d, n int) string
return str;
}
func (n Node)
String() string
{
func
(n Node) String() string {
var str string;
var f, i, d int;
@ -592,17 +577,15 @@ String() string
return str;
}
func (v *Var)
String() string
{
func
(v *Var) String() string {
var str string;
str = fmt.Sprintf("%v %v", v.name, v.node);
return str;
}
func
readline() bool
{
readline() bool {
s,err := fi.ReadString('\n');
if err != nil {
return true;
@ -613,8 +596,7 @@ readline() bool
}
func
getrune() int
{
getrune() int {
var c,n int;
if linep >= len(line) {
@ -631,8 +613,7 @@ getrune() int
var symmap = make(map[string]*Var); // symbol table
func
lookup(f int) *Var
{
lookup(f int) *Var {
var p float64;
var w *Var;
@ -663,8 +644,8 @@ lookup(f int) *Var
return v;
}
type Prefix
struct
type
Prefix struct
{
vval float64;
name string;
@ -693,12 +674,11 @@ var prefix = []Prefix { // prefix table
Prefix { 1e15, "peta" },
Prefix { 1e18, "exa" },
Prefix { 1e21, "zetta" },
Prefix { 1e24, "yotta" }
Prefix { 1e24, "yotta" },
}
func
pname() float64
{
pname() float64 {
var i, j, n int;
var s string;
@ -730,8 +710,7 @@ pname() float64
// careful multiplication
// exponents (log) are checked before multiply
func
fmul(a, b float64) float64
{
fmul(a, b float64) float64 {
var l float64;
if b <= 0 {
@ -764,8 +743,7 @@ fmul(a, b float64) float64
// careful division
// exponents (log) are checked before divide
func
fdiv(a, b float64) float64
{
fdiv(a, b float64) float64 {
var l float64;
if b <= 0 {
@ -797,7 +775,6 @@ fdiv(a, b float64) float64
}
func
fadd(a, b float64) float64
{
fadd(a, b float64) float64 {
return a + b;
}