#include <stdio.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <string.h>
|
#include <string.h>
|
#include "cpp.h"
|
#include "cpp.h"
|
|
|
/*
|
/*
|
* do a macro definition. tp points to the name being defined in the line
|
* do a macro definition. tp points to the name being defined in the line
|
*/
|
*/
|
void
|
void
|
dodefine(Tokenrow *trp)
|
dodefine(Tokenrow *trp)
|
{
|
{
|
Token *tp;
|
Token *tp;
|
Nlist *np;
|
Nlist *np;
|
Tokenrow *def, *args;
|
Tokenrow *def, *args;
|
|
|
tp = trp->tp+1;
|
tp = trp->tp+1;
|
if (tp>=trp->lp || tp->type!=NAME) {
|
if (tp>=trp->lp || tp->type!=NAME) {
|
error(ERROR, "#defined token is not a name");
|
error(ERROR, "#defined token is not a name");
|
return;
|
return;
|
}
|
}
|
np = lookup(tp, 1);
|
np = lookup(tp, 1);
|
if (np->flag&ISUNCHANGE) {
|
if (np->flag&ISUNCHANGE) {
|
error(ERROR, "#defined token %t can't be redefined", tp);
|
error(ERROR, "#defined token %t can't be redefined", tp);
|
return;
|
return;
|
}
|
}
|
/* collect arguments */
|
/* collect arguments */
|
tp += 1;
|
tp += 1;
|
args = NULL;
|
args = NULL;
|
if (tp<trp->lp && tp->type==LP && tp->wslen==0) {
|
if (tp<trp->lp && tp->type==LP && tp->wslen==0) {
|
/* macro with args */
|
/* macro with args */
|
int narg = 0;
|
int narg = 0;
|
tp += 1;
|
tp += 1;
|
args = new(Tokenrow);
|
args = new(Tokenrow);
|
maketokenrow(2, args);
|
maketokenrow(2, args);
|
if (tp->type!=RP) {
|
if (tp->type!=RP) {
|
int err = 0;
|
int err = 0;
|
for (;;) {
|
for (;;) {
|
Token *atp;
|
Token *atp;
|
if (tp->type!=NAME) {
|
if (tp->type!=NAME) {
|
err++;
|
err++;
|
break;
|
break;
|
}
|
}
|
if (narg>=args->max)
|
if (narg>=args->max)
|
growtokenrow(args);
|
growtokenrow(args);
|
for (atp=args->bp; atp<args->lp; atp++)
|
for (atp=args->bp; atp<args->lp; atp++)
|
if (atp->len==tp->len
|
if (atp->len==tp->len
|
&& strncmp((char*)atp->t, (char*)tp->t, tp->len)==0)
|
&& strncmp((char*)atp->t, (char*)tp->t, tp->len)==0)
|
error(ERROR, "Duplicate macro argument");
|
error(ERROR, "Duplicate macro argument");
|
*args->lp++ = *tp;
|
*args->lp++ = *tp;
|
narg++;
|
narg++;
|
tp += 1;
|
tp += 1;
|
if (tp->type==RP)
|
if (tp->type==RP)
|
break;
|
break;
|
if (tp->type!=COMMA) {
|
if (tp->type!=COMMA) {
|
err++;
|
err++;
|
break;
|
break;
|
}
|
}
|
tp += 1;
|
tp += 1;
|
}
|
}
|
if (err) {
|
if (err) {
|
error(ERROR, "Syntax error in macro parameters");
|
error(ERROR, "Syntax error in macro parameters");
|
return;
|
return;
|
}
|
}
|
}
|
}
|
tp += 1;
|
tp += 1;
|
}
|
}
|
trp->tp = tp;
|
trp->tp = tp;
|
if (((trp->lp)-1)->type==NL)
|
if (((trp->lp)-1)->type==NL)
|
trp->lp -= 1;
|
trp->lp -= 1;
|
def = normtokenrow(trp);
|
def = normtokenrow(trp);
|
if (np->flag&ISDEFINED) {
|
if (np->flag&ISDEFINED) {
|
if (comparetokens(def, np->vp)
|
if (comparetokens(def, np->vp)
|
|| (np->ap==NULL) != (args==NULL)
|
|| (np->ap==NULL) != (args==NULL)
|
|| np->ap && comparetokens(args, np->ap))
|
|| np->ap && comparetokens(args, np->ap))
|
error(ERROR, "Macro redefinition of %t", trp->bp+2);
|
error(ERROR, "Macro redefinition of %t", trp->bp+2);
|
}
|
}
|
if (args) {
|
if (args) {
|
Tokenrow *tap;
|
Tokenrow *tap;
|
tap = normtokenrow(args);
|
tap = normtokenrow(args);
|
dofree(args->bp);
|
dofree(args->bp);
|
args = tap;
|
args = tap;
|
}
|
}
|
np->ap = args;
|
np->ap = args;
|
np->vp = def;
|
np->vp = def;
|
np->flag |= ISDEFINED;
|
np->flag |= ISDEFINED;
|
}
|
}
|
|
|
/*
|
/*
|
* Definition received via -D or -U
|
* Definition received via -D or -U
|
*/
|
*/
|
void
|
void
|
doadefine(Tokenrow *trp, int type)
|
doadefine(Tokenrow *trp, int type)
|
{
|
{
|
Nlist *np;
|
Nlist *np;
|
static unsigned char one[] = "1";
|
static unsigned char one[] = "1";
|
static Token onetoken[1] = {{ NUMBER, 0, 0, 0, 1, one }};
|
static Token onetoken[1] = {{ NUMBER, 0, 0, 0, 1, one }};
|
static Tokenrow onetr = { onetoken, onetoken, onetoken+1, 1 };
|
static Tokenrow onetr = { onetoken, onetoken, onetoken+1, 1 };
|
|
|
trp->tp = trp->bp;
|
trp->tp = trp->bp;
|
if (type=='U') {
|
if (type=='U') {
|
if (trp->lp-trp->tp != 2 || trp->tp->type!=NAME)
|
if (trp->lp-trp->tp != 2 || trp->tp->type!=NAME)
|
goto syntax;
|
goto syntax;
|
if ((np = lookup(trp->tp, 0)) == NULL)
|
if ((np = lookup(trp->tp, 0)) == NULL)
|
return;
|
return;
|
np->flag &= ~ISDEFINED;
|
np->flag &= ~ISDEFINED;
|
return;
|
return;
|
}
|
}
|
if (trp->tp >= trp->lp || trp->tp->type!=NAME)
|
if (trp->tp >= trp->lp || trp->tp->type!=NAME)
|
goto syntax;
|
goto syntax;
|
np = lookup(trp->tp, 1);
|
np = lookup(trp->tp, 1);
|
np->flag |= ISDEFINED;
|
np->flag |= ISDEFINED;
|
trp->tp += 1;
|
trp->tp += 1;
|
if (trp->tp >= trp->lp || trp->tp->type==END) {
|
if (trp->tp >= trp->lp || trp->tp->type==END) {
|
np->vp = &onetr;
|
np->vp = &onetr;
|
return;
|
return;
|
}
|
}
|
if (trp->tp->type!=ASGN)
|
if (trp->tp->type!=ASGN)
|
goto syntax;
|
goto syntax;
|
trp->tp += 1;
|
trp->tp += 1;
|
if ((trp->lp-1)->type == END)
|
if ((trp->lp-1)->type == END)
|
trp->lp -= 1;
|
trp->lp -= 1;
|
np->vp = normtokenrow(trp);
|
np->vp = normtokenrow(trp);
|
return;
|
return;
|
syntax:
|
syntax:
|
error(FATAL, "Illegal -D or -U argument %r", trp);
|
error(FATAL, "Illegal -D or -U argument %r", trp);
|
}
|
}
|
|
|
/*
|
/*
|
* Do macro expansion in a row of tokens.
|
* Do macro expansion in a row of tokens.
|
* Flag is NULL if more input can be gathered.
|
* Flag is NULL if more input can be gathered.
|
*/
|
*/
|
void
|
void
|
expandrow(Tokenrow *trp, char *flag)
|
expandrow(Tokenrow *trp, char *flag)
|
{
|
{
|
Token *tp;
|
Token *tp;
|
Nlist *np;
|
Nlist *np;
|
|
|
if (flag)
|
if (flag)
|
setsource(flag, NULL, "");
|
setsource(flag, NULL, "");
|
for (tp = trp->tp; tp<trp->lp; ) {
|
for (tp = trp->tp; tp<trp->lp; ) {
|
if (tp->type!=NAME
|
if (tp->type!=NAME
|
|| quicklook(tp->t[0], tp->len>1?tp->t[1]:0)==0
|
|| quicklook(tp->t[0], tp->len>1?tp->t[1]:0)==0
|
|| (np = lookup(tp, 0))==NULL
|
|| (np = lookup(tp, 0))==NULL
|
|| (np->flag&(ISDEFINED|ISMAC))==0
|
|| (np->flag&(ISDEFINED|ISMAC))==0
|
|| tp->hideset && checkhideset(tp->hideset, np)) {
|
|| tp->hideset && checkhideset(tp->hideset, np)) {
|
tp++;
|
tp++;
|
continue;
|
continue;
|
}
|
}
|
trp->tp = tp;
|
trp->tp = tp;
|
if (np->val==KDEFINED) {
|
if (np->val==KDEFINED) {
|
tp->type = DEFINED;
|
tp->type = DEFINED;
|
if ((tp+1)<trp->lp && (tp+1)->type==NAME)
|
if ((tp+1)<trp->lp && (tp+1)->type==NAME)
|
(tp+1)->type = NAME1;
|
(tp+1)->type = NAME1;
|
else if ((tp+3)<trp->lp && (tp+1)->type==LP
|
else if ((tp+3)<trp->lp && (tp+1)->type==LP
|
&& (tp+2)->type==NAME && (tp+3)->type==RP)
|
&& (tp+2)->type==NAME && (tp+3)->type==RP)
|
(tp+2)->type = NAME1;
|
(tp+2)->type = NAME1;
|
else
|
else
|
error(ERROR, "Incorrect syntax for `defined'");
|
error(ERROR, "Incorrect syntax for `defined'");
|
tp++;
|
tp++;
|
continue;
|
continue;
|
}
|
}
|
if (np->flag&ISMAC)
|
if (np->flag&ISMAC)
|
builtin(trp, np->val);
|
builtin(trp, np->val);
|
else {
|
else {
|
expand(trp, np);
|
expand(trp, np);
|
}
|
}
|
tp = trp->tp;
|
tp = trp->tp;
|
}
|
}
|
if (flag)
|
if (flag)
|
unsetsource();
|
unsetsource();
|
}
|
}
|
|
|
/*
|
/*
|
* Expand the macro whose name is np, at token trp->tp, in the tokenrow.
|
* Expand the macro whose name is np, at token trp->tp, in the tokenrow.
|
* Return trp->tp at the first token next to be expanded
|
* Return trp->tp at the first token next to be expanded
|
* (ordinarily the beginning of the expansion)
|
* (ordinarily the beginning of the expansion)
|
*/
|
*/
|
void
|
void
|
expand(Tokenrow *trp, Nlist *np)
|
expand(Tokenrow *trp, Nlist *np)
|
{
|
{
|
Tokenrow ntr;
|
Tokenrow ntr;
|
int ntokc, narg, i;
|
int ntokc, narg, i;
|
Token *tp;
|
Token *tp;
|
Tokenrow *atr[NARG+1];
|
Tokenrow *atr[NARG+1];
|
int hs;
|
int hs;
|
|
|
copytokenrow(&ntr, np->vp); /* copy macro value */
|
copytokenrow(&ntr, np->vp); /* copy macro value */
|
if (np->ap==NULL) /* parameterless */
|
if (np->ap==NULL) /* parameterless */
|
ntokc = 1;
|
ntokc = 1;
|
else {
|
else {
|
ntokc = gatherargs(trp, atr, &narg);
|
ntokc = gatherargs(trp, atr, &narg);
|
if (narg<0) { /* not actually a call (no '(') */
|
if (narg<0) { /* not actually a call (no '(') */
|
/* gatherargs has already pushed trp->tr to the next token */
|
/* gatherargs has already pushed trp->tr to the next token */
|
return;
|
return;
|
}
|
}
|
if (narg != rowlen(np->ap)) {
|
if (narg != rowlen(np->ap)) {
|
error(ERROR, "Disagreement in number of macro arguments");
|
error(ERROR, "Disagreement in number of macro arguments");
|
trp->tp->hideset = newhideset(trp->tp->hideset, np);
|
trp->tp->hideset = newhideset(trp->tp->hideset, np);
|
trp->tp += ntokc;
|
trp->tp += ntokc;
|
return;
|
return;
|
}
|
}
|
substargs(np, &ntr, atr); /* put args into replacement */
|
substargs(np, &ntr, atr); /* put args into replacement */
|
for (i=0; i<narg; i++) {
|
for (i=0; i<narg; i++) {
|
dofree(atr[i]->bp);
|
dofree(atr[i]->bp);
|
dofree(atr[i]);
|
dofree(atr[i]);
|
}
|
}
|
}
|
}
|
doconcat(&ntr); /* execute ## operators */
|
doconcat(&ntr); /* execute ## operators */
|
hs = newhideset(trp->tp->hideset, np);
|
hs = newhideset(trp->tp->hideset, np);
|
for (tp=ntr.bp; tp<ntr.lp; tp++) { /* distribute hidesets */
|
for (tp=ntr.bp; tp<ntr.lp; tp++) { /* distribute hidesets */
|
if (tp->type==NAME) {
|
if (tp->type==NAME) {
|
if (tp->hideset==0)
|
if (tp->hideset==0)
|
tp->hideset = hs;
|
tp->hideset = hs;
|
else
|
else
|
tp->hideset = unionhideset(tp->hideset, hs);
|
tp->hideset = unionhideset(tp->hideset, hs);
|
}
|
}
|
}
|
}
|
ntr.tp = ntr.bp;
|
ntr.tp = ntr.bp;
|
insertrow(trp, ntokc, &ntr);
|
insertrow(trp, ntokc, &ntr);
|
trp->tp -= rowlen(&ntr);
|
trp->tp -= rowlen(&ntr);
|
dofree(ntr.bp);
|
dofree(ntr.bp);
|
return;
|
return;
|
}
|
}
|
|
|
/*
|
/*
|
* Gather an arglist, starting in trp with tp pointing at the macro name.
|
* Gather an arglist, starting in trp with tp pointing at the macro name.
|
* Return total number of tokens passed, stash number of args found.
|
* Return total number of tokens passed, stash number of args found.
|
* trp->tp is not changed relative to the tokenrow.
|
* trp->tp is not changed relative to the tokenrow.
|
*/
|
*/
|
int
|
int
|
gatherargs(Tokenrow *trp, Tokenrow **atr, int *narg)
|
gatherargs(Tokenrow *trp, Tokenrow **atr, int *narg)
|
{
|
{
|
int parens = 1;
|
int parens = 1;
|
int ntok = 0;
|
int ntok = 0;
|
Token *bp, *lp;
|
Token *bp, *lp;
|
Tokenrow ttr;
|
Tokenrow ttr;
|
int ntokp;
|
int ntokp;
|
int needspace;
|
int needspace;
|
|
|
*narg = -1; /* means that there is no macro call */
|
*narg = -1; /* means that there is no macro call */
|
/* look for the ( */
|
/* look for the ( */
|
for (;;) {
|
for (;;) {
|
trp->tp++;
|
trp->tp++;
|
ntok++;
|
ntok++;
|
if (trp->tp >= trp->lp) {
|
if (trp->tp >= trp->lp) {
|
gettokens(trp, 0);
|
gettokens(trp, 0);
|
if ((trp->lp-1)->type==END) {
|
if ((trp->lp-1)->type==END) {
|
trp->lp -= 1;
|
trp->lp -= 1;
|
trp->tp -= ntok;
|
trp->tp -= ntok;
|
return ntok;
|
return ntok;
|
}
|
}
|
}
|
}
|
if (trp->tp->type==LP)
|
if (trp->tp->type==LP)
|
break;
|
break;
|
if (trp->tp->type!=NL)
|
if (trp->tp->type!=NL)
|
return ntok;
|
return ntok;
|
}
|
}
|
*narg = 0;
|
*narg = 0;
|
ntok++;
|
ntok++;
|
ntokp = ntok;
|
ntokp = ntok;
|
trp->tp++;
|
trp->tp++;
|
/* search for the terminating ), possibly extending the row */
|
/* search for the terminating ), possibly extending the row */
|
needspace = 0;
|
needspace = 0;
|
while (parens>0) {
|
while (parens>0) {
|
if (trp->tp >= trp->lp)
|
if (trp->tp >= trp->lp)
|
gettokens(trp, 0);
|
gettokens(trp, 0);
|
if (needspace) {
|
if (needspace) {
|
needspace = 0;
|
needspace = 0;
|
makespace(trp);
|
makespace(trp);
|
}
|
}
|
if (trp->tp->type==END) {
|
if (trp->tp->type==END) {
|
trp->lp -= 1;
|
trp->lp -= 1;
|
trp->tp -= ntok;
|
trp->tp -= ntok;
|
error(ERROR, "EOF in macro arglist");
|
error(ERROR, "EOF in macro arglist");
|
return ntok;
|
return ntok;
|
}
|
}
|
if (trp->tp->type==NL) {
|
if (trp->tp->type==NL) {
|
trp->tp += 1;
|
trp->tp += 1;
|
adjustrow(trp, -1);
|
adjustrow(trp, -1);
|
trp->tp -= 1;
|
trp->tp -= 1;
|
makespace(trp);
|
makespace(trp);
|
needspace = 1;
|
needspace = 1;
|
continue;
|
continue;
|
}
|
}
|
if (trp->tp->type==LP)
|
if (trp->tp->type==LP)
|
parens++;
|
parens++;
|
else if (trp->tp->type==RP)
|
else if (trp->tp->type==RP)
|
parens--;
|
parens--;
|
trp->tp++;
|
trp->tp++;
|
ntok++;
|
ntok++;
|
}
|
}
|
trp->tp -= ntok;
|
trp->tp -= ntok;
|
/* Now trp->tp won't move underneath us */
|
/* Now trp->tp won't move underneath us */
|
lp = bp = trp->tp+ntokp;
|
lp = bp = trp->tp+ntokp;
|
for (; parens>=0; lp++) {
|
for (; parens>=0; lp++) {
|
if (lp->type == LP) {
|
if (lp->type == LP) {
|
parens++;
|
parens++;
|
continue;
|
continue;
|
}
|
}
|
if (lp->type==RP)
|
if (lp->type==RP)
|
parens--;
|
parens--;
|
if (lp->type==DSHARP)
|
if (lp->type==DSHARP)
|
lp->type = DSHARP1; /* ## not special in arg */
|
lp->type = DSHARP1; /* ## not special in arg */
|
if (lp->type==COMMA && parens==0 || parens<0 && (lp-1)->type!=LP) {
|
if (lp->type==COMMA && parens==0 || parens<0 && (lp-1)->type!=LP) {
|
if (*narg>=NARG-1)
|
if (*narg>=NARG-1)
|
error(FATAL, "Sorry, too many macro arguments");
|
error(FATAL, "Sorry, too many macro arguments");
|
ttr.bp = ttr.tp = bp;
|
ttr.bp = ttr.tp = bp;
|
ttr.lp = lp;
|
ttr.lp = lp;
|
atr[(*narg)++] = normtokenrow(&ttr);
|
atr[(*narg)++] = normtokenrow(&ttr);
|
bp = lp+1;
|
bp = lp+1;
|
}
|
}
|
}
|
}
|
return ntok;
|
return ntok;
|
}
|
}
|
|
|
/*
|
/*
|
* substitute the argument list into the replacement string
|
* substitute the argument list into the replacement string
|
* This would be simple except for ## and #
|
* This would be simple except for ## and #
|
*/
|
*/
|
void
|
void
|
substargs(Nlist *np, Tokenrow *rtr, Tokenrow **atr)
|
substargs(Nlist *np, Tokenrow *rtr, Tokenrow **atr)
|
{
|
{
|
Tokenrow tatr;
|
Tokenrow tatr;
|
Token *tp;
|
Token *tp;
|
int ntok, argno;
|
int ntok, argno;
|
|
|
for (rtr->tp=rtr->bp; rtr->tp<rtr->lp; ) {
|
for (rtr->tp=rtr->bp; rtr->tp<rtr->lp; ) {
|
if (rtr->tp->type==SHARP) { /* string operator */
|
if (rtr->tp->type==SHARP) { /* string operator */
|
tp = rtr->tp;
|
tp = rtr->tp;
|
rtr->tp += 1;
|
rtr->tp += 1;
|
if ((argno = lookuparg(np, rtr->tp))<0) {
|
if ((argno = lookuparg(np, rtr->tp))<0) {
|
error(ERROR, "# not followed by macro parameter");
|
error(ERROR, "# not followed by macro parameter");
|
continue;
|
continue;
|
}
|
}
|
ntok = 1 + (rtr->tp - tp);
|
ntok = 1 + (rtr->tp - tp);
|
rtr->tp = tp;
|
rtr->tp = tp;
|
insertrow(rtr, ntok, stringify(atr[argno]));
|
insertrow(rtr, ntok, stringify(atr[argno]));
|
continue;
|
continue;
|
}
|
}
|
if (rtr->tp->type==NAME
|
if (rtr->tp->type==NAME
|
&& (argno = lookuparg(np, rtr->tp)) >= 0) {
|
&& (argno = lookuparg(np, rtr->tp)) >= 0) {
|
if ((rtr->tp+1)->type==DSHARP
|
if ((rtr->tp+1)->type==DSHARP
|
|| rtr->tp!=rtr->bp && (rtr->tp-1)->type==DSHARP)
|
|| rtr->tp!=rtr->bp && (rtr->tp-1)->type==DSHARP)
|
insertrow(rtr, 1, atr[argno]);
|
insertrow(rtr, 1, atr[argno]);
|
else {
|
else {
|
copytokenrow(&tatr, atr[argno]);
|
copytokenrow(&tatr, atr[argno]);
|
expandrow(&tatr, "<macro>");
|
expandrow(&tatr, "<macro>");
|
insertrow(rtr, 1, &tatr);
|
insertrow(rtr, 1, &tatr);
|
dofree(tatr.bp);
|
dofree(tatr.bp);
|
}
|
}
|
continue;
|
continue;
|
}
|
}
|
rtr->tp++;
|
rtr->tp++;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Evaluate the ## operators in a tokenrow
|
* Evaluate the ## operators in a tokenrow
|
*/
|
*/
|
void
|
void
|
doconcat(Tokenrow *trp)
|
doconcat(Tokenrow *trp)
|
{
|
{
|
Token *ltp, *ntp;
|
Token *ltp, *ntp;
|
Tokenrow ntr;
|
Tokenrow ntr;
|
int len;
|
int len;
|
|
|
for (trp->tp=trp->bp; trp->tp<trp->lp; trp->tp++) {
|
for (trp->tp=trp->bp; trp->tp<trp->lp; trp->tp++) {
|
if (trp->tp->type==DSHARP1)
|
if (trp->tp->type==DSHARP1)
|
trp->tp->type = DSHARP;
|
trp->tp->type = DSHARP;
|
else if (trp->tp->type==DSHARP) {
|
else if (trp->tp->type==DSHARP) {
|
char tt[128];
|
char tt[128];
|
ltp = trp->tp-1;
|
ltp = trp->tp-1;
|
ntp = trp->tp+1;
|
ntp = trp->tp+1;
|
if (ltp<trp->bp || ntp>=trp->lp) {
|
if (ltp<trp->bp || ntp>=trp->lp) {
|
error(ERROR, "## occurs at border of replacement");
|
error(ERROR, "## occurs at border of replacement");
|
continue;
|
continue;
|
}
|
}
|
len = ltp->len + ntp->len;
|
len = ltp->len + ntp->len;
|
strncpy((char*)tt, (char*)ltp->t, ltp->len);
|
strncpy((char*)tt, (char*)ltp->t, ltp->len);
|
strncpy((char*)tt+ltp->len, (char*)ntp->t, ntp->len);
|
strncpy((char*)tt+ltp->len, (char*)ntp->t, ntp->len);
|
tt[len] = '\0';
|
tt[len] = '\0';
|
setsource("<##>", NULL, tt);
|
setsource("<##>", NULL, tt);
|
maketokenrow(3, &ntr);
|
maketokenrow(3, &ntr);
|
gettokens(&ntr, 1);
|
gettokens(&ntr, 1);
|
unsetsource();
|
unsetsource();
|
if (ntr.lp-ntr.bp!=2 || ntr.bp->type==UNCLASS)
|
if (ntr.lp-ntr.bp!=2 || ntr.bp->type==UNCLASS)
|
error(WARNING, "Bad token %r produced by ##", &ntr);
|
error(WARNING, "Bad token %r produced by ##", &ntr);
|
ntr.lp = ntr.bp+1;
|
ntr.lp = ntr.bp+1;
|
trp->tp = ltp;
|
trp->tp = ltp;
|
makespace(&ntr);
|
makespace(&ntr);
|
insertrow(trp, (ntp-ltp)+1, &ntr);
|
insertrow(trp, (ntp-ltp)+1, &ntr);
|
dofree(ntr.bp);
|
dofree(ntr.bp);
|
trp->tp--;
|
trp->tp--;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* tp is a potential parameter name of macro mac;
|
* tp is a potential parameter name of macro mac;
|
* look it up in mac's arglist, and if found, return the
|
* look it up in mac's arglist, and if found, return the
|
* corresponding index in the argname array. Return -1 if not found.
|
* corresponding index in the argname array. Return -1 if not found.
|
*/
|
*/
|
int
|
int
|
lookuparg(Nlist *mac, Token *tp)
|
lookuparg(Nlist *mac, Token *tp)
|
{
|
{
|
Token *ap;
|
Token *ap;
|
|
|
if (tp->type!=NAME || mac->ap==NULL)
|
if (tp->type!=NAME || mac->ap==NULL)
|
return -1;
|
return -1;
|
for (ap=mac->ap->bp; ap<mac->ap->lp; ap++) {
|
for (ap=mac->ap->bp; ap<mac->ap->lp; ap++) {
|
if (ap->len==tp->len && strncmp((char*)ap->t,(char*)tp->t,ap->len)==0)
|
if (ap->len==tp->len && strncmp((char*)ap->t,(char*)tp->t,ap->len)==0)
|
return ap - mac->ap->bp;
|
return ap - mac->ap->bp;
|
}
|
}
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/*
|
/*
|
* Return a quoted version of the tokenrow (from # arg)
|
* Return a quoted version of the tokenrow (from # arg)
|
*/
|
*/
|
#define STRLEN 512
|
#define STRLEN 512
|
Tokenrow *
|
Tokenrow *
|
stringify(Tokenrow *vp)
|
stringify(Tokenrow *vp)
|
{
|
{
|
static Token t = { STRING };
|
static Token t = { STRING };
|
static Tokenrow tr = { &t, &t, &t+1, 1 };
|
static Tokenrow tr = { &t, &t, &t+1, 1 };
|
Token *tp;
|
Token *tp;
|
uchar s[STRLEN];
|
uchar s[STRLEN];
|
uchar *sp = s, *cp;
|
uchar *sp = s, *cp;
|
int i, instring;
|
int i, instring;
|
|
|
*sp++ = '"';
|
*sp++ = '"';
|
for (tp = vp->bp; tp < vp->lp; tp++) {
|
for (tp = vp->bp; tp < vp->lp; tp++) {
|
instring = tp->type==STRING || tp->type==CCON;
|
instring = tp->type==STRING || tp->type==CCON;
|
if (sp+2*tp->len >= &s[STRLEN-10]) {
|
if (sp+2*tp->len >= &s[STRLEN-10]) {
|
error(ERROR, "Stringified macro arg is too long");
|
error(ERROR, "Stringified macro arg is too long");
|
break;
|
break;
|
}
|
}
|
if (tp->wslen && (tp->flag&XPWS)==0)
|
if (tp->wslen && (tp->flag&XPWS)==0)
|
*sp++ = ' ';
|
*sp++ = ' ';
|
for (i=0, cp=tp->t; i<tp->len; i++) {
|
for (i=0, cp=tp->t; i<tp->len; i++) {
|
if (instring && (*cp=='"' || *cp=='\\'))
|
if (instring && (*cp=='"' || *cp=='\\'))
|
*sp++ = '\\';
|
*sp++ = '\\';
|
*sp++ = *cp++;
|
*sp++ = *cp++;
|
}
|
}
|
}
|
}
|
*sp++ = '"';
|
*sp++ = '"';
|
*sp = '\0';
|
*sp = '\0';
|
sp = s;
|
sp = s;
|
t.len = strlen((char*)sp);
|
t.len = strlen((char*)sp);
|
t.t = newstring(sp, t.len, 0);
|
t.t = newstring(sp, t.len, 0);
|
return &tr;
|
return &tr;
|
}
|
}
|
|
|
/*
|
/*
|
* expand a builtin name
|
* expand a builtin name
|
*/
|
*/
|
void
|
void
|
builtin(Tokenrow *trp, int biname)
|
builtin(Tokenrow *trp, int biname)
|
{
|
{
|
char *op;
|
char *op;
|
Token *tp;
|
Token *tp;
|
Source *s;
|
Source *s;
|
|
|
tp = trp->tp;
|
tp = trp->tp;
|
trp->tp++;
|
trp->tp++;
|
/* need to find the real source */
|
/* need to find the real source */
|
s = cursource;
|
s = cursource;
|
while (s && s->fd==NULL)
|
while (s && s->fd==NULL)
|
s = s->next;
|
s = s->next;
|
if (s==NULL)
|
if (s==NULL)
|
s = cursource;
|
s = cursource;
|
/* most are strings */
|
/* most are strings */
|
tp->type = STRING;
|
tp->type = STRING;
|
if (tp->wslen) {
|
if (tp->wslen) {
|
*outp++ = ' ';
|
*outp++ = ' ';
|
tp->wslen = 1;
|
tp->wslen = 1;
|
}
|
}
|
op = outp;
|
op = outp;
|
*op++ = '"';
|
*op++ = '"';
|
switch (biname) {
|
switch (biname) {
|
|
|
case KLINENO:
|
case KLINENO:
|
tp->type = NUMBER;
|
tp->type = NUMBER;
|
op = outnum(op-1, s->line);
|
op = outnum(op-1, s->line);
|
break;
|
break;
|
|
|
case KFILE: {
|
case KFILE: {
|
char *src = s->filename;
|
char *src = s->filename;
|
while ((*op++ = *src++) != 0)
|
while ((*op++ = *src++) != 0)
|
if (src[-1] == '\\')
|
if (src[-1] == '\\')
|
*op++ = '\\';
|
*op++ = '\\';
|
op--;
|
op--;
|
break;
|
break;
|
}
|
}
|
|
|
case KDATE:
|
case KDATE:
|
strncpy(op, curtime+4, 7);
|
strncpy(op, curtime+4, 7);
|
strncpy(op+7, curtime+20, 4);
|
strncpy(op+7, curtime+20, 4);
|
op += 11;
|
op += 11;
|
break;
|
break;
|
|
|
case KTIME:
|
case KTIME:
|
strncpy(op, curtime+11, 8);
|
strncpy(op, curtime+11, 8);
|
op += 8;
|
op += 8;
|
break;
|
break;
|
|
|
default:
|
default:
|
error(ERROR, "cpp botch: unknown internal macro");
|
error(ERROR, "cpp botch: unknown internal macro");
|
return;
|
return;
|
}
|
}
|
if (tp->type==STRING)
|
if (tp->type==STRING)
|
*op++ = '"';
|
*op++ = '"';
|
tp->t = (uchar*)outp;
|
tp->t = (uchar*)outp;
|
tp->len = op - outp;
|
tp->len = op - outp;
|
outp = op;
|
outp = op;
|
}
|
}
|
|
|
