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Another batch especially on C ANSI frontend

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Godzil 2013-03-18 02:25:39 +01:00 committed by Manoël Trapier
parent 369ec26b03
commit c0cd8650a6
42 changed files with 413 additions and 310 deletions
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116
lang/cem/cemcom.ansi/arith.c
View File

@ -27,15 +27,15 @@
#include "field.h"
#include "mes.h"
#include "assert.h"
#include "ch3.h"
#include "ch3bin.h"
#include "code_c.h"
#include "conversion.h"
#include "cstoper.h"
extern char *symbol2str();
extern char options[];
extern arith flt_flt2arith();
extern label code_string();
arithbalance(e1p, oper, e2p) /* 3.1.2.5 */
register struct expr **e1p, **e2p;
int oper;
void arithbalance(struct expr **e1p, int oper, struct expr **e2p) /* 3.1.2.5 */
{
/* The expressions *e1p and *e2p are balanced to be operands
of the arithmetic operator oper.
@ -44,7 +44,7 @@ arithbalance(e1p, oper, e2p) /* 3.1.2.5 */
have a floating type, in which case the flags shouldn't
travel upward in the expression tree.
*/
register int t1, t2, u1, u2;
int t1, t2, u1, u2;
int shifting = (oper == LEFT || oper == RIGHT
|| oper == LEFTAB || oper == RIGHTAB);
int ptrdiff = 0;
@ -53,7 +53,7 @@ arithbalance(e1p, oper, e2p) /* 3.1.2.5 */
t2 = any2arith(e2p, oper);
if (int_size != pointer_size) {
if (ptrdiff = ((*e1p)->ex_flags & EX_PTRDIFF)
if ((ptrdiff = ((*e1p)->ex_flags & EX_PTRDIFF))
|| ((*e2p)->ex_flags & EX_PTRDIFF)) {
if (!((*e1p)->ex_flags & EX_PTRDIFF) && t1 == LONG)
ptrdiff = 0;
@ -82,10 +82,16 @@ arithbalance(e1p, oper, e2p) /* 3.1.2.5 */
return;
} else if (t2 == LNGDBL) {
if (t1 != LNGDBL)
{
if (t1 == DOUBLE || t1 == FLOAT)
{
float2float(e1p, lngdbl_type);
}
else
{
int2float(e1p, lngdbl_type);
}
}
return;
}
@ -173,8 +179,7 @@ arithbalance(e1p, oper, e2p) /* 3.1.2.5 */
}
}
relbalance(e1p, oper, e2p)
register struct expr **e1p, **e2p;
void relbalance(struct expr **e1p, int oper, struct expr **e2p)
{
/* The expressions *e1p and *e2p are balanced to be operands
of the relational operator oper, or the ':'.
@ -183,7 +188,7 @@ relbalance(e1p, oper, e2p)
allows assignments of a null-pointer to a function
pointer.
*/
register struct expr *e1 = *e1p, *e2 = *e2p;
struct expr *e1 = *e1p, *e2 = *e2p;
struct expr *tmpexpr;
if (e1->ex_type->tp_fund == POINTER
@ -206,15 +211,13 @@ relbalance(e1p, oper, e2p)
arithbalance(e1p, oper, e2p);
}
ch3pointer(expp, oper, tp)
struct expr **expp;
register struct type *tp;
void ch3pointer(struct expr **expp, int oper, struct type *tp)
{
/* Checks whether *expp may be compared to tp using oper,
as described in chapter 3.3.8 and 3.3.9.
tp is known to be a pointer.
*/
register struct expr *exp = *expp;
struct expr *exp = *expp;
if (exp->ex_type->tp_fund == POINTER) {
if (exp->ex_type != tp)
@ -239,10 +242,7 @@ ch3pointer(expp, oper, tp)
}
}
int
any2arith(expp, oper)
register struct expr **expp;
register int oper;
int any2arith(struct expr **expp, int oper)
{
/* Turns any expression into int_type, long_type,
float_type, double_type or lngdbl_type.
@ -297,8 +297,7 @@ any2arith(expp, oper)
return (*expp)->ex_type->tp_fund;
}
erroneous2int(expp)
struct expr **expp;
void erroneous2int(struct expr **expp)
{
/* the (erroneous) expression *expp is replaced by an
int expression
@ -312,16 +311,12 @@ erroneous2int(expp)
*expp = exp;
}
struct expr *
arith2arith(tp, oper, expr)
struct type *tp;
int oper;
register struct expr *expr;
struct expr *arith2arith(struct type *tp, int oper, struct expr *expr)
{
/* arith2arith constructs a new expression containing a
run-time conversion between some arithmetic types.
*/
register struct expr *new = new_expr();
struct expr *new = new_expr();
new->ex_file = expr->ex_file;
new->ex_line = expr->ex_line;
@ -330,18 +325,15 @@ arith2arith(tp, oper, expr)
return new_oper(tp, new, oper, expr);
}
int
int2int(expp, tp)
struct expr **expp;
register struct type *tp;
int int2int(struct expr **expp, struct type *tp)
{
/* The expression *expp, which is of some integral type, is
converted to the integral type tp.
*/
register struct expr *exp = *expp;
struct expr *exp = *expp;
if (is_cp_cst(exp)) {
register struct type *tp1 = exp->ex_type;
struct type *tp1 = exp->ex_type;
exp->ex_type = tp;
if (! tp1->tp_unsigned && tp->tp_unsigned) {
@ -371,14 +363,12 @@ int2int(expp, tp)
/* With compile-time constants, we don't set fp_used, since this is done
* only when necessary in eval.c.
*/
int2float(expp, tp)
register struct expr **expp;
struct type *tp;
void int2float(struct expr **expp, struct type *tp)
{
/* The expression *expp, which is of some integral type, is
converted to the floating type tp.
*/
register struct expr *exp = *expp;
struct expr *exp = *expp;
int uns = exp->ex_type->tp_unsigned;
if (is_cp_cst(exp)) {
@ -392,14 +382,12 @@ int2float(expp, tp)
}
}
float2int(expp, tp)
struct expr **expp;
struct type *tp;
void float2int(struct expr **expp, struct type *tp)
{
/* The expression *expp, which is of some floating type, is
converted to the integral type tp.
*/
register struct expr *ex = *expp;
struct expr *ex = *expp;
if (is_fp_cst(ex)) {
arith ar = flt_flt2arith(&ex->FL_ARITH, tp->tp_unsigned);
@ -420,9 +408,7 @@ float2int(expp, tp)
}
}
float2float(expp, tp)
register struct expr **expp;
struct type *tp;
void float2float(struct expr**expp, struct type *tp)
{
/* The expression *expp, which is of some floating type, is
converted to the floating type tp.
@ -438,8 +424,7 @@ float2float(expp, tp)
}
}
array2pointer(exp)
register struct expr *exp;
void array2pointer(struct expr *exp)
{
/* The expression, which must be an array, is converted
to a pointer.
@ -449,8 +434,7 @@ array2pointer(exp)
, (arith)0, NO_PROTO);
}
function2pointer(exp)
register struct expr *exp;
void function2pointer(struct expr *exp)
{
/* The expression, which must be a function, is converted
to a pointer to the function.
@ -459,8 +443,7 @@ function2pointer(exp)
(arith)0, NO_PROTO);
}
string2pointer(ex)
register struct expr *ex;
void string2pointer(struct expr *ex)
{
/* The expression, which must be a string constant, is converted
to a pointer to the string-containing area.
@ -474,11 +457,9 @@ string2pointer(ex)
ex->VL_VALUE = (arith)0;
}
opnd2integral(expp, oper)
register struct expr **expp;
int oper;
void opnd2integral(struct expr **expp, int oper)
{
register int fund = (*expp)->ex_type->tp_fund;
int fund = (*expp)->ex_type->tp_fund;
if (fund != INT && fund != LONG) {
expr_error(*expp, "%s operand to %s",
@ -488,9 +469,7 @@ opnd2integral(expp, oper)
}
}
opnd2logical(expp, oper)
register struct expr **expp;
int oper;
void opnd2logical(struct expr **expp, int oper)
{
int fund = (*expp)->ex_type->tp_fund;
@ -526,8 +505,7 @@ opnd2logical(expp, oper)
}
}
opnd2test(expp, oper)
register struct expr **expp;
void opnd2test(struct expr **expp, int oper)
{
opnd2logical(expp, oper);
if ((*expp)->ex_class == Oper) {
@ -551,8 +529,7 @@ opnd2test(expp, oper)
ch3bin(expp, NOTEQUAL, intexpr((arith)0, INT));
}
any2opnd(expp, oper)
register struct expr **expp;
void any2opnd(struct expr **expp, int oper)
{
if (!*expp)
return;
@ -563,7 +540,9 @@ any2opnd(expp, oper)
case CHAR:
case SHORT:
case ENUM:
/* case FLOAT: /* not necessary anymore */
#if 0
case FLOAT: /* not necessary anymore */
#endif
any2arith(expp, oper);
break;
case ARRAY:
@ -584,8 +563,7 @@ any2opnd(expp, oper)
}
}
any2parameter(expp)
register struct expr **expp;
void any2parameter(struct expr **expp)
{
/* To handle default argument promotions
*/
@ -598,14 +576,13 @@ any2parameter(expp)
}
#ifndef NOBITFIELD
field2arith(expp)
register struct expr **expp;
void field2arith(struct expr **expp)
{
/* The expression to extract the bitfield value from the
memory word is put in the tree.
*/
register struct type *tp = (*expp)->ex_type->tp_up;
register struct field *fd = (*expp)->ex_type->tp_field;
struct type *tp = (*expp)->ex_type->tp_up;
struct field *fd = (*expp)->ex_type->tp_field;
(*expp)->ex_type = word_type;
@ -630,8 +607,7 @@ field2arith(expp)
/* switch_sign_fp() negates the given floating constant expression,
* and frees the string representing the old value.
*/
switch_sign_fp(expr)
register struct expr *expr;
void switch_sign_fp(struct expr *expr)
{
flt_umin(&(expr->FL_ARITH));
}

10
lang/cem/cemcom.ansi/arith.h
View File

@ -30,3 +30,13 @@
#define arith_size (sizeof(arith))
#define arith_sign ((arith) 1 << (arith_size * 8 - 1))
#define max_arith (~arith_sign)
struct expr;
struct type;
void erroneous2int(struct expr **expp);
int int2int(struct expr **expp, struct type *tp);
void int2float(struct expr **expp, struct type *tp);
void float2float(struct expr**expp, struct type *tp);
void field2arith(struct expr **expp);
void ch3pointer(struct expr **expp, int oper, struct type *tp);

23
lang/cem/cemcom.ansi/blocks.c
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@ -18,9 +18,11 @@
#include "label.h"
#include "stack.h"
#include "Lpars.h"
extern arith NewLocal();
#define LocalPtrVar() NewLocal(pointer_size, pointer_align, reg_pointer, REGISTER)
#define LocalIntVar() NewLocal(int_size, int_align, reg_any, REGISTER)
static void copy_loop(arith sz, arith src, arith dst);
#endif /* STB */
/* Because EM does not support the loading and storing of
@ -52,9 +54,7 @@ extern arith NewLocal();
while we need a loop to store the stack block into a memory object.
*/
suitable_sz(sz, al)
arith sz;
int al;
static int suitable_sz(arith sz, int al)
{
return ((int)sz % (int)word_size == 0 && al % word_align == 0) ||
(
@ -64,9 +64,7 @@ suitable_sz(sz, al)
);
}
store_block(sz, al)
arith sz;
int al;
void store_block(arith sz, int al)
{
if (suitable_sz(sz, al))
C_sti(sz);
@ -102,9 +100,7 @@ store_block(sz, al)
}
}
load_block(sz, al)
arith sz;
int al;
void load_block(arith sz, int al)
{
if (suitable_sz(sz, al))
@ -138,9 +134,7 @@ load_block(sz, al)
}
}
copy_block(sz, al)
arith sz;
int al;
void copy_block(arith sz, int al)
{
if (suitable_sz(sz, al))
@ -167,8 +161,7 @@ copy_block(sz, al)
}
#ifndef STB
copy_loop(sz, src, dst)
arith sz, src, dst;
static void copy_loop(arith sz, arith src, arith dst)
{
/* generate inline byte-copy loop */
label l_cont = text_label(), l_stop = text_label();

8
lang/cem/cemcom.ansi/blocks.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef LANG_CEM_CEMCOM_ANSI_BLOCKS_H
#define LANG_CEM_CEMCOM_ANSI_BLOCKS_H
void store_block(arith sz, int al);
void load_block(arith sz, int al);
void copy_block(arith sz, int al);
#endif

70
lang/cem/cemcom.ansi/ch3.c
View File

@ -20,26 +20,32 @@
#include "Lpars.h"
#include "assert.h"
#include "file_info.h"
#include "ch3.h"
#include "ch3bin.h"
#include "decspecs.h"
#include "conversion.h"
#include <symbol2str.h>
extern char options[];
extern char *symbol2str();
extern struct type *qualifier_type();
static int check_pseudoproto(struct proto *pl, struct proto *opl, int diag);
static int legal_mixture(struct type *tp, struct type *otp, int diag);
static int equal_proto(struct proto *pl, struct proto *opl, int diag);
static int is_arith_type(struct type *tp);
/* Most expression-handling routines have a pointer to a
(struct type *) as first parameter. The object under the pointer
gets updated in the process.
*/
ch3sel(expp, oper, idf)
struct expr **expp;
struct idf *idf;
void ch3sel(struct expr **expp, int oper, struct idf *idf)
{
/* The selector idf is applied to *expp; oper may be '.' or
ARROW.
*/
register struct expr *exp;
register struct type *tp;
register struct sdef *sd;
struct expr *exp;
struct type *tp;
struct sdef *sd;
any2opnd(expp, oper);
exp = *expp;
@ -162,8 +168,7 @@ ch3sel(expp, oper, idf)
*expp = exp;
}
ch3incr(expp, oper)
struct expr **expp;
void ch3incr(struct expr **expp, int oper)
{
/* The monadic prefix/postfix incr/decr operator oper is
applied to *expp.
@ -171,17 +176,15 @@ ch3incr(expp, oper)
ch3asgn(expp, oper, intexpr((arith)1, INT));
}
ch3cast(expp, oper, tp)
register struct expr **expp;
register struct type *tp;
void ch3cast(struct expr **expp, int oper, struct type *tp)
{
/* The expression *expp is cast to type tp; the cast is
caused by the operator oper. If the cast has
to be passed on to run time, its left operand will be an
expression of class Type.
*/
register struct type *oldtp;
register struct expr *exp = *expp;
struct type *oldtp;
struct expr *exp = *expp;
int qual_lev, ascompat = 0;
if (oper == RETURN && tp->tp_fund == VOID) {
@ -410,9 +413,7 @@ ch3cast(expp, oper, tp)
/* Determine whether two types are equal.
*/
equal_type(tp, otp, qual_lev, diag)
register struct type *tp, *otp;
int qual_lev, diag;
int equal_type(struct type *tp, struct type *otp, int qual_lev, int diag)
{
if (tp == otp)
return 1;
@ -473,8 +474,7 @@ equal_type(tp, otp, qual_lev, diag)
}
}
check_pseudoproto(pl, opl, diag)
register struct proto *pl, *opl;
static int check_pseudoproto(struct proto *pl, struct proto *opl, int diag)
{
int retval = 1;
@ -517,13 +517,11 @@ check_pseudoproto(pl, opl, diag)
return retval;
}
legal_mixture(tp, otp, diag)
struct type *tp, *otp;
int diag;
static int legal_mixture(struct type *tp, struct type *otp, int diag)
{
struct proto *pl = tp->tp_proto, *opl = otp->tp_proto;
int retval = 1;
register struct proto *prot;
struct proto *prot;
int fund;
ASSERT( (pl != 0) ^ (opl != 0));
@ -560,9 +558,7 @@ legal_mixture(tp, otp, diag)
return retval;
}
equal_proto(pl, opl, diag)
register struct proto *pl, *opl;
int diag;
static int equal_proto(struct proto *pl, struct proto *opl, int diag)
{
if (pl == opl)
return 1;
@ -584,11 +580,9 @@ equal_proto(pl, opl, diag)
}
/* check if a type has a consqualified member */
recurqual(tp, qual)
struct type *tp;
int qual;
int recurqual(struct type *tp, int qual)
{
register struct sdef *sdf;
struct sdef *sdf;
ASSERT(tp);
@ -608,9 +602,7 @@ int qual;
return 0;
}
ch3asgn(expp, oper, expr)
struct expr **expp;
struct expr *expr;
void ch3asgn(struct expr **expp, int oper, struct expr *expr)
{
/* The assignment operators.
"f op= e" should be interpreted as
@ -625,7 +617,7 @@ ch3asgn(expp, oper, expr)
f (typeof (f op e))e
EVAL should however take care of evaluating (typeof (f op e))f
*/
register struct expr *exp = *expp;
struct expr *exp = *expp;
int fund = exp->ex_type->tp_fund;
struct type *tp;
char *oper_string = symbol2str(oper);
@ -685,9 +677,7 @@ ch3asgn(expp, oper, expr)
/* Some interesting (?) questions answered.
*/
int
is_integral_type(tp)
register struct type *tp;
int is_integral_type(struct type *tp)
{
switch (tp->tp_fund) {
case CHAR:
@ -705,9 +695,7 @@ is_integral_type(tp)
}
}
int
is_arith_type(tp)
register struct type *tp;
static int is_arith_type(struct type *tp)
{
switch (tp->tp_fund) {
case CHAR:

17
lang/cem/cemcom.ansi/ch3.h Normal file
View File

@ -0,0 +1,17 @@
/*
* The Amsterdam Compiler Kit
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#ifndef LANG_CEM_CEMCOM_ANSI_CH3_H
#define LANG_CEM_CEMCOM_ANSI_CH3_H
void ch3cast(struct expr **expp, int oper, struct type *tp);
void ch3sel(struct expr **expp, int oper, struct idf *idf);
void ch3incr(struct expr **expp, int oper);
int equal_type(struct type *tp, struct type *otp, int qual_lev, int diag);
int recurqual(struct type *tp, int qual);
void ch3asgn(struct expr **expp, int oper, struct expr *expr);
int is_integral_type(struct type *tp);
#endif

32
lang/cem/cemcom.ansi/ch3bin.c
View File

@ -18,9 +18,19 @@
#include "expr.h"
#include "Lpars.h"
#include "sizes.h"
#include "ch3.h"
#include "ch3bin.h"
#include "ch3mon.h"
#include "cstoper.h"
#include <symbol2str.h>
extern char options[];
extern char *symbol2str();
static void pntminuspnt(struct expr **expp, int oper, struct expr *expr);
static int arg_switched(int oper);
static void mk_binop(struct expr **expp, int oper, struct expr *expr, int commutative);
static void pointer_arithmetic(struct expr **expp1, int oper, struct expr **expp2);
static void pointer_binary(struct expr **expp, int oper, struct expr *expr);
/* This chapter asks for the repeated application of code to handle
an operation that may be executed at compile time or at run time,
@ -35,9 +45,7 @@ extern char *symbol2str();
#define commutative_binop(expp, oper, expr) mk_binop(expp, oper, expr, 1)
#define non_commutative_relop(expp, oper, expr) mk_binop(expp, oper, expr, 1)
ch3bin(expp, oper, expr)
register struct expr **expp;
struct expr *expr;
void ch3bin(struct expr **expp, int oper, struct expr *expr)
{
/* apply binary operator oper between *expp and expr.
NB: don't swap operands if op is one of the op= operators!!!
@ -295,8 +303,7 @@ ch3bin(expp, oper, expr)
}
}
pntminuspnt(expp, oper, expr)
register struct expr **expp, *expr;
static void pntminuspnt(struct expr **expp, int oper, struct expr *expr)
{
/* Subtracting two pointers is so complicated it merits a
routine of its own.
@ -327,8 +334,7 @@ pntminuspnt(expp, oper, expr)
* when the arguments are switched. This is special for some relational
* operators.
*/
int
arg_switched(oper)
static int arg_switched(int oper)
{
switch (oper) {
case '<': return '>';
@ -339,9 +345,7 @@ arg_switched(oper)
}
}
mk_binop(expp, oper, expr, commutative)
struct expr **expp;
register struct expr *expr;
static void mk_binop(struct expr **expp, int oper, struct expr *expr, int commutative)
{
/* Constructs in *expp the operation indicated by the operands.
"commutative" indicates whether "oper" is a commutative
@ -365,8 +369,7 @@ mk_binop(expp, oper, expr, commutative)
}
}
pointer_arithmetic(expp1, oper, expp2)
register struct expr **expp1, **expp2;
static void pointer_arithmetic(struct expr **expp1, int oper, struct expr **expp2)
{
int typ;
/* prepares the integral expression expp2 in order to
@ -386,8 +389,7 @@ pointer_arithmetic(expp1, oper, expp2)
);
}
pointer_binary(expp, oper, expr)
register struct expr **expp, *expr;
static void pointer_binary(struct expr **expp, int oper, struct expr *expr)
{
/* constructs the pointer arithmetic expression out of
a pointer expression, a binary operator and an integral

11
lang/cem/cemcom.ansi/ch3bin.h Normal file
View File

@ -0,0 +1,11 @@
/*
* The Amsterdam Compiler Kit
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#ifndef LANG_CEM_CEMCOM_ANSI_CH3BIN_H
#define LANG_CEM_CEMCOM_ANSI_CH3BIN_H
void ch3bin(struct expr **expp, int oper, struct expr *expr);
#endif

8
lang/cem/cemcom.ansi/ch3mon.c
View File

@ -18,13 +18,15 @@
#include "idf.h"
#include "def.h"
#include "sizes.h"
#include "ch3.h"
#include "ch3mon.h"
#include <symbol2str.h>
extern char options[];
extern arith full_mask[/*MAXSIZE + 1*/]; /* cstoper.c */
char *symbol2str(int tok);
ch3mon(oper, expp)
register struct expr **expp;
void ch3mon(int oper, struct expr **expp)
{
/* The monadic prefix operator oper is applied to *expp.
*/

11
lang/cem/cemcom.ansi/ch3mon.h Normal file
View File

@ -0,0 +1,11 @@
/*
* The Amsterdam Compiler Kit
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#ifndef LANG_CEM_CEMCOM_ANSI_CH3MON_H
#define LANG_CEM_CEMCOM_ANSI_CH3MON_H
void ch3mon(int oper, struct expr **expp);
#endif

119
lang/cem/cemcom.ansi/code.c
View File

@ -40,6 +40,12 @@
#include "assert.h"
#include "LLlex.h"
#include "align.h"
#include "blocks.h"
#include "code_c.h"
#include "conversion.h"
#include <symbol2str.h>
#ifdef LINT
#include "l_lint.h"
#endif /* LINT */
@ -51,7 +57,6 @@ label lab_count = 1;
label datlab_count = 1;
int fp_used;
extern arith NewLocal(); /* util.c */
/* global function info */
char *func_name;
@ -66,12 +71,14 @@ static int pro_id;
#endif /* USE_TMP */
extern char options[];
extern char *symbol2str();
extern char *source;
static void def_strings(struct string_cst *sc);
static void prc_entry(char *name);
static void prc_exit();
#ifndef LINT
init_code(dst_file)
char *dst_file;
void init_code(char *dst_file)
{
/* init_code() initialises the output file on which the
compact EM code is written
@ -108,10 +115,7 @@ init_code(dst_file)
struct string_cst *str_list = 0;
label
code_string(val, len)
char *val;
int len;
label code_string(char *val, int len)
{
register struct string_cst *sc = new_string_cst();
label dlb = data_label();
@ -125,8 +129,7 @@ code_string(val, len)
return dlb;
}
def_strings(sc)
register struct string_cst *sc;
static void def_strings(struct string_cst *sc)
{
while (sc) {
struct string_cst *sc1 = sc;
@ -140,7 +143,8 @@ def_strings(sc)
}
/* flush_strings() is called from program.g after each external definition */
flush_strings() {
void flush_strings()
{
if (str_list) {
def_strings(str_list);
str_list = 0;
@ -148,7 +152,7 @@ flush_strings() {
}
#ifndef LINT
end_code()
void end_code()
{
/* end_code() performs the actions to be taken when closing
the output stream.
@ -163,19 +167,19 @@ end_code()
#endif /* LINT */
#ifdef PREPEND_SCOPES
prepend_scopes()
void prepend_scopes()
{
/* prepend_scopes() runs down the list of global idf's
and generates those exa's, exp's, ina's and inp's
that superior hindsight has provided.
*/
register struct stack_entry *se = local_level->sl_entry;
struct stack_entry *se = local_level->sl_entry;
#ifdef USE_TMP
C_beginpart(tmp_id);
#endif /* USE_TMP */
while (se != 0) {
register struct def *df = se->se_idf->id_def;
struct def *df = se->se_idf->id_def;
if (df && (df->df_initialized || df->df_used || df->df_alloc)) {
code_scope(se->se_idf->id_text, df);
@ -188,9 +192,7 @@ prepend_scopes()
}
#endif /* PREPEND_SCOPES */
code_scope(text, def)
char *text;
register struct def *def;
void code_scope(char *text, struct def *def)
{
/* generates code for one name, text, of the storage class
as given by def, if meaningful.
@ -221,9 +223,8 @@ static int struct_return;
static char *last_fn_given = (char *)0;
static label file_name_label;
begin_proc(ds, idf) /* to be called when entering a procedure */
struct decspecs *ds;
struct idf *idf;
/* to be called when entering a procedure */
void begin_proc(struct decspecs *ds, struct idf *idf)
{
/* begin_proc() is called at the entrance of a new function
and performs the necessary code generation:
@ -233,8 +234,8 @@ begin_proc(ds, idf) /* to be called when entering a procedure */
does not fit in the return area
- a fil pseudo instruction
*/
register char *name = idf->id_text;
register struct def *def = idf->id_def;
char *name = idf->id_text;
struct def *def = idf->id_def;
/* idf->id_def does not indicate the right def structure
* when the function being defined has a parameter of the
@ -320,8 +321,7 @@ begin_proc(ds, idf) /* to be called when entering a procedure */
#endif
}
end_proc(fbytes)
arith fbytes;
void end_proc(arith fbytes)
{
/* end_proc() deals with the code to be generated at the end of
a function, as there is:
@ -391,7 +391,7 @@ end_proc(fbytes)
options['n'] = optionsn;
}
do_return()
void do_return()
{
/* do_return handles the case of a return without expression.
This version branches to the return label, which is
@ -404,8 +404,7 @@ do_return()
C_bra(return2_label);
}
do_return_expr(expr)
struct expr *expr;
void do_return_expr(struct expr *expr)
{
/* do_return_expr() generates the expression and the jump for
a return statement with an expression.
@ -420,11 +419,12 @@ do_return_expr(expr)
return_expr_occurred = 1;
}
code_declaration(idf, expr, lvl, sc)
register struct idf *idf; /* idf to be declared */
struct expr *expr; /* initialisation; NULL if absent */
int lvl; /* declaration level */
int sc; /* storage class, as in the declaration */
/* struct idf *idf idf to be declared
* struct expr *expr initialisation; NULL if absent
* int lvl declaration level
* int sc storage class, as in the declaration
*/
void code_declaration(struct idf *idf, struct expr *expr, int lvl, int sc)
{
/* code_declaration() does the actual declaration of the
variable indicated by "idf" on declaration level "lvl".
@ -445,8 +445,8 @@ code_declaration(idf, expr, lvl, sc)
The sc is the actual storage class, as given in the
declaration.
*/
register struct def *def = idf->id_def;
register arith size = def->df_type->tp_size;
struct def *def = idf->id_def;
arith size = def->df_type->tp_size;
int fund = def->df_type->tp_fund;
int def_sc = def->df_sc;
@ -532,17 +532,15 @@ code_declaration(idf, expr, lvl, sc)
}
}
loc_init(expr, id)
struct expr *expr;
struct idf *id;
void loc_init(struct expr *expr, struct idf *id)
{
/* loc_init() generates code for the assignment of
expression expr to the local variable described by id.
It frees the expression afterwards.
*/
register struct expr *e = expr;
register struct def *df = id->id_def;
register struct type *tp = df->df_type;
struct expr *e = expr;
struct def *df = id->id_def;
struct type *tp = df->df_type;
static arith tmpoffset = 0;
static arith unknownsize = 0;
@ -610,12 +608,11 @@ loc_init(expr, id)
}
}
bss(idf)
register struct idf *idf;
void bss(struct idf *idf)
{
/* bss() allocates bss space for the global idf.
*/
register struct def *df = idf->id_def;
struct def *df = idf->id_def;
#ifndef PREPEND_SCOPES
code_scope(idf->id_text, df);
@ -641,15 +638,13 @@ bss(idf)
}
}
formal_cvt(hasproto,df)
int hasproto;
register struct def *df;
void formal_cvt(int hasproto, struct def *df)
{
/* formal_cvt() converts a formal parameter of type char or
short from int to that type. It also converts a formal
parameter of type float from a double to a float.
*/
register struct type *tp = df->df_type;
struct type *tp = df->df_type;
if (tp->tp_size != int_size &&
(tp->tp_fund == CHAR || tp->tp_fund == SHORT)
@ -673,9 +668,7 @@ formal_cvt(hasproto,df)
#ifdef LINT
/*ARGSUSED*/
#endif /* LINT */
code_expr(expr, val, code, tlbl, flbl)
struct expr *expr;
label tlbl, flbl;
void code_expr(struct expr *expr, int val, int code, label tlbl, label flbl)
{
/* code_expr() is the parser's interface to the expression code
generator. If line number trace is wanted, it generates a
@ -708,9 +701,9 @@ static struct stmt_block *stmt_stack; /* top of statement stack */
which are the only ones that are stacked, only the top of
the stack is interesting.
*/
code_break()
void code_break()
{
register struct stmt_block *stmt_block = stmt_stack;
struct stmt_block *stmt_block = stmt_stack;
#ifdef DBSYMTAB
if (options['g']) db_line(dot.tk_file, dot.tk_line);
@ -726,9 +719,9 @@ code_break()
it generates a branch instruction to the continue label of the
innermost statement in which continue has a meaning.
*/
code_continue()
void code_continue()
{
register struct stmt_block *stmt_block = stmt_stack;
struct stmt_block *stmt_block = stmt_stack;
while (stmt_block) {
if (stmt_block->st_continue) {
@ -743,10 +736,9 @@ code_continue()
error("continue not inside for, while or do");
}
stack_stmt(break_label, cont_label)
label break_label, cont_label;
void stack_stmt(label break_label, label cont_label)
{
register struct stmt_block *stmt_block = new_stmt_block();
struct stmt_block *stmt_block = new_stmt_block();
stmt_block->next = stmt_stack;
stmt_block->st_break = break_label;
@ -754,7 +746,7 @@ stack_stmt(break_label, cont_label)
stmt_stack = stmt_block;
}
unstack_stmt()
void unstack_stmt()
{
/* unstack_stmt() unstacks the data of a statement
which may contain break or continue
@ -766,8 +758,7 @@ unstack_stmt()
static label prc_name;
prc_entry(name)
char *name;
static void prc_entry(char *name)
{
if (options['p']) {
C_df_dlb(prc_name = data_label());
@ -778,7 +769,7 @@ prc_entry(name)
}
}
prc_exit()
static void prc_exit()
{
if (options['p']) {
C_lae_dlb(prc_name, (arith) 0);
@ -788,9 +779,7 @@ prc_exit()
}
#ifdef DBSYMTAB
db_line(file, line)
char *file;
unsigned int line;
void db_line(char *file, unsigned int line)
{
static unsigned oldline;
static char *oldfile;

39
lang/cem/cemcom.ansi/code_c.h Normal file
View File

@ -0,0 +1,39 @@
/*
* The Amsterdam Compiler Kit
* See the copyright notice in the ACK home directory, in the file "Copyright".
*/
#ifndef LANG_CEM_CEMCOM_ANSI_CODE_H
#define LANG_CEM_CEMCOM_ANSI_CODE_H
struct decspecs;
void init_code(char *dst_file);
label code_string(char *val, int len);
void flush_strings();
void code_scope(char *text, struct def *def);
void begin_proc(struct decspecs *ds, struct idf *idf);
void end_proc(arith fbytes);
void do_return();
void do_return_expr(struct expr *expr);
void code_declaration(struct idf *idf, struct expr *expr, int lvl, int sc);
void loc_init(struct expr *expr, struct idf *id);
void bss(struct idf *idf);
void code_expr(struct expr *expr, int val, int code, label tlbl, label flbl);
void code_break();
void code_continue();
void stack_stmt(label break_label, label cont_label);
void unstack_stmt();
#ifdef DBSYMTAB
void db_line(char *file, unsigned int line);
#endif
#ifdef PREPEND_SCOPES
void prepend_scopes();
#endif
#ifndef LINT
void end_code();
#endif
#endif

13
lang/cem/cemcom.ansi/conversion.c
View File

@ -27,13 +27,12 @@
C??
*/
static int convtype();
static int convtype(struct type *tp);
conversion(from_type, to_type)
register struct type *from_type, *to_type;
void conversion(struct type *from_type, struct type *to_type)
{
register arith from_size = from_type->tp_size;
register arith to_size = to_type->tp_size;
arith from_size = from_type->tp_size;
arith to_size = to_type->tp_size;
int from_cnvtype = convtype(from_type);
int to_cnvtype = convtype(to_type);
@ -126,9 +125,7 @@ conversion(from_type, to_type)
/* convtype() returns in which category a given type falls:
signed, unsigned or floating
*/
static int
convtype(tp)
register struct type *tp;
static int convtype(struct type *tp)
{
switch (tp->tp_fund) {
case CHAR:

8
lang/cem/cemcom.ansi/conversion.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef LANG_CEM_CEMCOM_ANSI_CONVERSION_H
#define LANG_CEM_CEMCOM_ANSI_CONVERSION_H
struct type;
void conversion(struct type *from_type, struct type *to_type);
#endif

19
lang/cem/cemcom.ansi/cstoper.c
View File

@ -15,6 +15,7 @@
#include "sizes.h"
#include "Lpars.h"
#include "assert.h"
#include "cstoper.h"
/* full_mask[1] == 0XFF, full_mask[2] == 0XFFFF, .. */
arith full_mask[MAXSIZE + 1];
@ -24,15 +25,14 @@ arith max_unsigned; /* maximum unsigned on target machine */
#endif /* NOCROSS */
extern int ResultKnown;
cstbin(expp, oper, expr)
register struct expr **expp, *expr;
void cstbin(struct expr **expp, int oper, struct expr *expr)
{
/* The operation oper is performed on the constant
expressions *expp(ld) and expr(ct), and the result restored in
*expp.
*/
register arith o1 = (*expp)->VL_VALUE;
register arith o2 = expr->VL_VALUE;
arith o1 = (*expp)->VL_VALUE;
arith o2 = expr->VL_VALUE;
int uns = (*expp)->ex_type->tp_unsigned;
ASSERT(is_ld_cst(*expp) && is_cp_cst(expr));
@ -205,13 +205,12 @@ cstbin(expp, oper, expr)
free_expression(expr);
}
cut_size(expr)
register struct expr *expr;
void cut_size(struct expr *expr)
{
/* The constant value of the expression expr is made to
conform to the size of the type of the expression.
*/
register arith o1 = expr->VL_VALUE;
arith o1 = expr->VL_VALUE;
int uns = expr->ex_type->tp_unsigned;
int size = (int) expr->ex_type->tp_size;
@ -241,10 +240,10 @@ cut_size(expr)
expr->VL_VALUE = o1;
}
init_cst()
void init_cst()
{
register int i = 0;
register arith bt = (arith)0;
int i = 0;
arith bt = (arith)0;
while (!(bt < 0)) {
bt = (bt << 8) + 0377, i++;

8
lang/cem/cemcom.ansi/cstoper.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef LANG_CEM_CEMCOM_ANSI_CSTOPER_H
#define LANG_CEM_CEMCOM_ANSI_CSTOPER_H
void cstbin(struct expr **expp, int oper, struct expr *expr);
void cut_size(struct expr *expr);
void init_cst();
#endif

1
lang/cem/cemcom.ansi/declar.g
View File

@ -28,6 +28,7 @@
#include "expr.h"
#include "sizes.h"
#include "level.h"
#include "code_c.h"
#ifdef LINT
#include "l_lint.h"
#endif /* LINT */

18
lang/cem/cemcom.ansi/decspecs.c
View File

@ -20,13 +20,12 @@ extern struct type *qualifier_type();
struct decspecs null_decspecs;
do_decspecs(ds)
register struct decspecs *ds;
void do_decspecs(struct decspecs *ds)
{
/* The provisional decspecs ds as obtained from the program
is turned into a legal consistent decspecs.
*/
register struct type *tp = ds->ds_type;
struct type *tp = ds->ds_type;
ASSERT(level != L_FORMAL1);
@ -67,7 +66,7 @@ do_decspecs(ds)
tp = int_type;
}
if (ds->ds_size) {
register int ds_isshort = (ds->ds_size == SHORT);
int ds_isshort = (ds->ds_size == SHORT);
if (ds->ds_typedef) goto SIZE_ERROR; /* yes */
if (tp == int_type) {
@ -82,7 +81,7 @@ do_decspecs(ds)
ds->ds_notypegiven = 0;
}
if (ds->ds_unsigned) {
register int ds_isunsigned = (ds->ds_unsigned == UNSIGNED);
int ds_isunsigned = (ds->ds_unsigned == UNSIGNED);
if (ds->ds_typedef) goto SIGN_ERROR; /* yes */
/*
@ -113,13 +112,10 @@ do_decspecs(ds)
In case of a complex type the top of the type list will be
replaced by a qualified version.
*/
struct type *
qualifier_type(tp, typequal)
register struct type *tp;
int typequal;
struct type *qualifier_type(struct type *tp, int typequal)
{
register struct type *dtp = tp;
register int fund = tp->tp_fund;
struct type *dtp = tp;
int fund = tp->tp_fund;
while (dtp && dtp->tp_typequal != typequal)
dtp = dtp->next;

5
lang/cem/cemcom.ansi/decspecs.h
View File

@ -17,5 +17,8 @@ struct decspecs {
int ds_typequal; /* type qualifiers - see type.str */
};
extern struct type *qualifier_type();
extern struct decspecs null_decspecs;
void do_decspecs(struct decspecs *ds);
struct type *qualifier_type(struct type *tp, int typequal);

2
lang/cem/cemcom.ansi/eval.c
View File

@ -30,6 +30,8 @@
#include "align.h"
#include "mes.h"
#include "atw.h"
#include "blocks.h"
#include "conversion.h"
#include "specials.h"
#define CRASH() crash("EVAL: CRASH at line %u", __LINE__)

4
lang/cem/cemcom.ansi/expr.c
View File

@ -24,8 +24,10 @@
#include "sizes.h"
#include "level.h"
#include "use_tmp.h"
#include "cstoper.h"
#include <symbol2str.h>
extern char *symbol2str();
extern char options[];
extern int InSizeof;

23
lang/cem/cemcom.ansi/expression.g
View File

@ -18,8 +18,9 @@
#include "expr.h"
#include "code.h"
#include "sizes.h"
extern struct expr *intexpr();
#include "ch3.h"
#include "ch3bin.h"
#include "ch3mon.h"
int InSizeof = 0; /* inside a sizeof- expression */
int ResultKnown = 0; /* result of the expression is already known */
@ -31,7 +32,7 @@ int ResultKnown = 0; /* result of the expression is already known */
}
/* 3.3.1 */
primary(register struct expr **expp;) :
primary(struct expr **expp;) :
IDENTIFIER
{dot2expr(expp);}
|
@ -48,10 +49,10 @@ primary(register struct expr **expp;) :
* are concatenated into a single character string
* literal.
*/
string(register struct expr **expp;)
{ register int i, len;
register char *str;
register int fund;
string(struct expr **expp;)
{ int i, len;
char *str;
int fund;
}
:
STRING
@ -78,7 +79,7 @@ string(register struct expr **expp;)
;
/* 3.3.2 */
postfix_expression(register struct expr **expp;)
postfix_expression(struct expr **expp;)
{ int oper;
struct expr *e1 = 0;
struct idf *idf;
@ -120,7 +121,7 @@ parameter_list(struct expr **expp;)
%first first_of_type_specifier, type_specifier;
/* 3.3.3 & 3.3.4 */
unary(register struct expr **expp;)
unary(struct expr **expp;)
{struct type *tp; int oper;}
:
%if (first_of_type_specifier(AHEAD) && AHEAD != IDENTIFIER)
@ -143,7 +144,7 @@ unary(register struct expr **expp;)
* mark it as used.
* extern int i; .... sizeof(i) .... need not have a definition for i
*/
size_of(register struct expr **expp;)
size_of(struct expr **expp;)
{struct type *tp;}
:
SIZEOF { InSizeof++; } /* handle (sizeof(sizeof(int))) too */
@ -322,7 +323,7 @@ binop(int *oper;) :
{*oper = DOT;}
;
asgnop(register int *oper;):
asgnop(int *oper;):
[ '=' | PLUSAB | MINAB | TIMESAB | DIVAB | MODAB
| LEFTAB | RIGHTAB | ANDAB | XORAB | ORAB ]
{ *oper = DOT; }

1
lang/cem/cemcom.ansi/field.c
View File

@ -26,6 +26,7 @@
#include "align.h"
#include "Lpars.h"
#include "field.h"
#include "conversion.h"
arith NewLocal(); /* util.c */
extern arith full_mask[]; /* cstoper.c */

4
lang/cem/cemcom.ansi/fltcstoper.c
View File

@ -18,9 +18,11 @@
#include "expr.h"
#include "sizes.h"
#include "Lpars.h"
#include "cstoper.h"
#include <symbol2str.h>
extern int ResultKnown;
extern char *symbol2str();
fltcstbin(expp, oper, expr)
register struct expr **expp, *expr;

3
lang/cem/cemcom.ansi/idf.c
View File

@ -31,6 +31,9 @@
#include "sizes.h"
#include "Lpars.h"
#include "assert.h"
#include "ch3.h"
#include "code_c.h"
#include "conversion.h"
extern char options[];
extern arith NewLocal();

2
lang/cem/cemcom.ansi/ival.g
View File

@ -34,6 +34,8 @@
#include "def.h"
#include "LLlex.h"
#include "estack.h"
#include "conversion.h"
#include "cstopen.h"
#define con_nullbyte() C_con_ucon("0", (arith)1)
#define aggregate_type(tp) ((tp)->tp_fund == ARRAY || (tp)->tp_fund == STRUCT)

2
lang/cem/cemcom.ansi/l_em.h
View File

@ -14,6 +14,8 @@
* to terminate the compilation process.
*/
#include "blocks.h"
#define store_block(sz, al)
#define load_block(sz, al)

3
lang/cem/cemcom.ansi/l_misc.c
View File

@ -26,8 +26,9 @@
#include "type.h"
#include "level.h"
#include "l_state.h"
#include "conversion.h"
#include <symbol2str.h>
extern char *symbol2str();
extern struct type *func_type;
PRIVATE lint_enum_arith();

5
lang/cem/cemcom.ansi/main.c
View File

@ -29,9 +29,12 @@
#include "align.h"
#include "macro.h"
#include "assert.h"
#include "code_c.h"
#include "cstoper.h"
#include <symbol2str.h>
extern struct tokenname tkidf[];
extern char *symbol2str();
extern char options[128];
#ifndef NOPP

1
lang/cem/cemcom.ansi/options.c
View File

@ -22,6 +22,7 @@
#include "use_tmp.h"
#include "dataflow.h"
#include "dbsymtab.h"
#include "conversion.h"
#ifndef NOPP
extern char **inctable;

1
lang/cem/cemcom.ansi/program.g
View File

@ -59,6 +59,7 @@
#include "code.h"
#include "expr.h"
#include "def.h"
#include "code_c.h"
#ifdef LINT
#include "l_lint.h"
#endif /* LINT */

1
lang/cem/cemcom.ansi/proto.c
View File

@ -27,6 +27,7 @@
#include "decspecs.h"
#include "proto.h"
#include "assert.h"
#include "conversion.h"
extern char options[];

2
lang/cem/cemcom.ansi/stack.c
View File

@ -24,7 +24,7 @@
#include "struct.h"
#include "level.h"
#include "mes.h"
#include "code_c.h"
/* #include <em_reg.h> */
extern char options[];

1
lang/cem/cemcom.ansi/statement.g
View File

@ -28,6 +28,7 @@
#include "code.h"
#include "stack.h"
#include "def.h"
#include "code_c.h"
#ifdef DBSYMTAB
#include <stb.h>
#endif /* DBSYMTAB */

1
lang/cem/cemcom.ansi/switch.c
View File

@ -26,6 +26,7 @@
#include "expr.h"
#include "type.h"
#include "sizes.h"
#include "code_c.h"
extern char options[];

4
lang/cem/cemcom/make.tokcase
View File

@ -5,9 +5,7 @@ cat <<'--EOT--'
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */

33
lang/cem/cpp.ansi/make.tokcase
View File

@ -1,34 +1,41 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
static char buf[2] = { '\0', '\0' };
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */
static char buf[SIZBUF];
static int index;
if (040 <= tok && tok < 0177) {
buf[0] = tok;
buf[1] = '\0';
return buf;
}
switch (tok) {
--EOT--
sed '
/{[A-Z]/!d
s/.*{\(.*\),.*\(".*"\).*$/ case \1 :\
return \2;/
'
cat <<'--EOT--'
default:
if (tok <= 0) return "end of file";
if (tok < 040 || tok >= 0177) {
return "bad token";
}
/* fall through */
case '\n':
case '\f':
case '\v':
case '\r':
case '\t':
buf[0] = tok;
return buf;
default:
return "bad token";
index = (index+2) & (SIZBUF-1);
buf[index] = tok;
return &buf[index];
}
}
--EOT--

20
lang/m2/comp/make.tokcase
View File

@ -1,16 +1,16 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */
static char buf[SIZBUF] = { '\'', 0, '\'', 0, '\'', 0, '\'', 0};
static int index = 1;
static char buf[SIZBUF];
static int index;
switch (tok) {
--EOT--
@ -27,9 +27,15 @@ cat <<'--EOT--'
if (tok < 040 || tok >= 0177) {
return "bad token";
}
index = (index+4) & (SIZBUF-1);
/* fall through */
case '\n':
case '\f':
case '\v':
case '\r':
case '\t':
index = (index+2) & (SIZBUF-1);
buf[index] = tok;
return &buf[index-1];
return &buf[index];
}
}
--EOT--

6
lang/m2/m2mm/make.tokcase
View File

@ -1,11 +1,11 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */

6
lang/pc/comp/make.tokcase
View File

@ -1,11 +1,11 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */

31
util/cpp/make.tokcase
View File

@ -1,36 +1,41 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
static char buf[2] = { '\0', '\0' };
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */
static char buf[SIZBUF];
static int index;
if (040 <= tok && tok < 0177) {
buf[0] = tok;
buf[1] = '\0';
return buf;
}
switch (tok) {
--EOT--
sed '
/{[A-Z]/!d
s/.*{\(.*\),.*\(".*"\).*$/ case \1 :\
return \2;/
'
cat <<'--EOT--'
default:
if (tok <= 0) return "end of file";
if (tok < 040 || tok >= 0177) {
return "bad token";
}
/* fall through */
case '\n':
case '\f':
case '\v':
case '\r':
case '\t':
buf[0] = tok;
return buf;
default:
return "bad token";
index = (index+2) & (SIZBUF-1);
buf[index] = tok;
return &buf[index];
}
}
--EOT--

21
util/grind/make.tokcase
View File

@ -1,16 +1,16 @@
#!/bin/sh
cat <<'--EOT--'
/* Generated by make.tokcase */
/* $Id$ */
#include "Lpars.h"
char *
symbol2str(tok)
int tok;
char *symbol2str(int tok)
{
#define SIZBUF 8
/* allow for a few invocations in f.i. an argument list */
static char buf[SIZBUF] = { '\'', 0, '\'', 0, '\'', 0, '\'', 0};
static int index = 1;
static char buf[SIZBUF];
static int index;
switch (tok) {
--EOT--
@ -24,13 +24,18 @@ s/.*{\(.*\),.*\(".*"\).*$/ case \1 :\
cat <<'--EOT--'
default:
if (tok <= 0) return "end of file";
if (tok == '\n') return "<newline>";
if (tok < 040 || tok >= 0177) {
return "bad token";
}
index = (index+4) & (SIZBUF-1);
/* fall through */
case '\n':
case '\f':
case '\v':
case '\r':
case '\t':
index = (index+2) & (SIZBUF-1);
buf[index] = tok;
return &buf[index-1];
return &buf[index];
}
}
--EOT--