122 lines
2.8 KiB
C
122 lines
2.8 KiB
C
|
#include <stdio.h>
|
|||
|
|
#include <stdlib.h>
|
|||
|
|
#include <string.h>
|
|||
|
|
#include "cpp.h"
|
|||
|
|
|
|||
|
|
extern int getopt(int, char *const *, const char *);
|
|||
|
|
extern char *optarg;
|
|||
|
|
extern int optind;
|
|||
|
|
extern int Cplusplus;
|
|||
|
|
Nlist *kwdefined;
|
|||
|
|
char wd[128];
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
ER: Tabelle extra gross gemacht, da es anscheinend ein Problem mit der
|
|||
|
|
der Verkettung gibt, irgendwann irgendwo wird mal ein nlist->next
|
|||
|
|
ueberschrieben, was in eineme SIGSEGV resultiert.
|
|||
|
|
Den GDB mit watchpoint hab ich aber nach 2 Tagen abgebrochen..
|
|||
|
|
so loeppt<EFBFBD>s jedenfalls erstmal..
|
|||
|
|
*/
|
|||
|
|
#define NLSIZE 15000
|
|||
|
|
|
|||
|
|
static Nlist *nlist[NLSIZE];
|
|||
|
|
|
|||
|
|
struct kwtab
|
|||
|
|
{
|
|||
|
|
char *kw;
|
|||
|
|
int val;
|
|||
|
|
int flag;
|
|||
|
|
} kwtab[] =
|
|||
|
|
|
|||
|
|
{
|
|||
|
|
"if", KIF, ISKW,
|
|||
|
|
"ifdef", KIFDEF, ISKW,
|
|||
|
|
"ifndef", KIFNDEF, ISKW,
|
|||
|
|
"elif", KELIF, ISKW,
|
|||
|
|
"else", KELSE, ISKW,
|
|||
|
|
"endif", KENDIF, ISKW,
|
|||
|
|
"include", KINCLUDE, ISKW,
|
|||
|
|
"include_next", KINCLUDENEXT, ISKW,
|
|||
|
|
"import", KIMPORT, ISKW,
|
|||
|
|
"define", KDEFINE, ISKW,
|
|||
|
|
"undef", KUNDEF, ISKW,
|
|||
|
|
"line", KLINE, ISKW,
|
|||
|
|
"error", KERROR, ISKW,
|
|||
|
|
"pragma", KPRAGMA, ISKW,
|
|||
|
|
"ident", KIDENT, ISKW,
|
|||
|
|
"eval", KEVAL, ISKW,
|
|||
|
|
"defined", KDEFINED, ISDEFINED + ISUNCHANGE,
|
|||
|
|
"machine", KMACHINE, ISDEFINED + ISUNCHANGE,
|
|||
|
|
"__LINE__", KLINENO, ISMAC + ISUNCHANGE,
|
|||
|
|
"__FILE__", KFILE, ISMAC + ISUNCHANGE,
|
|||
|
|
"__DATE__", KDATE, ISMAC + ISUNCHANGE,
|
|||
|
|
"__TIME__", KTIME, ISMAC + ISUNCHANGE,
|
|||
|
|
"__STDC__", KSTDC, ISUNCHANGE,
|
|||
|
|
NULL
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
unsigned long namebit[077 + 1];
|
|||
|
|
Nlist *np;
|
|||
|
|
|
|||
|
|
void
|
|||
|
|
setup_kwtab(void)
|
|||
|
|
{
|
|||
|
|
struct kwtab *kp;
|
|||
|
|
Nlist *np;
|
|||
|
|
Token t;
|
|||
|
|
static Token deftoken[1] = {{NAME, 0, 0, 7, (uchar *) "defined"}};
|
|||
|
|
static Tokenrow deftr = {deftoken, deftoken, deftoken + 1, 1};
|
|||
|
|
|
|||
|
|
for (kp = kwtab; kp->kw; kp++)
|
|||
|
|
{
|
|||
|
|
t.t = (uchar *) kp->kw;
|
|||
|
|
t.len = strlen(kp->kw);
|
|||
|
|
np = lookup(&t, 1);
|
|||
|
|
np->flag = kp->flag;
|
|||
|
|
np->val = kp->val;
|
|||
|
|
if (np->val == KDEFINED)
|
|||
|
|
{
|
|||
|
|
kwdefined = np;
|
|||
|
|
np->val = NAME;
|
|||
|
|
np->vp = &deftr;
|
|||
|
|
np->ap = 0;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Nlist *
|
|||
|
|
lookup(Token * tp, int install)
|
|||
|
|
{
|
|||
|
|
unsigned int h;
|
|||
|
|
Nlist *np;
|
|||
|
|
uchar *cp, *cpe;
|
|||
|
|
|
|||
|
|
h = 0;
|
|||
|
|
for (cp = tp->t, cpe = cp + tp->len; cp < cpe;)
|
|||
|
|
h += *cp++;
|
|||
|
|
h %= NLSIZE;
|
|||
|
|
np = nlist[h];
|
|||
|
|
while (np)
|
|||
|
|
{
|
|||
|
|
if (*tp->t == *np->name && tp->len == (unsigned int)np->len
|
|||
|
|
&& strncmp((char *)tp->t, (char *)np->name, tp->len) == 0)
|
|||
|
|
return np;
|
|||
|
|
np = np->next;
|
|||
|
|
}
|
|||
|
|
if (install)
|
|||
|
|
{
|
|||
|
|
np = new(Nlist);
|
|||
|
|
np->vp = NULL;
|
|||
|
|
np->ap = NULL;
|
|||
|
|
np->flag = 0;
|
|||
|
|
np->val = 0;
|
|||
|
|
np->len = tp->len;
|
|||
|
|
np->name = newstring(tp->t, tp->len, 0);
|
|||
|
|
np->next = nlist[h];
|
|||
|
|
nlist[h] = np;
|
|||
|
|
quickset(tp->t[0], tp->len > 1 ? tp->t[1] : 0);
|
|||
|
|
return np;
|
|||
|
|
}
|
|||
|
|
return NULL;
|
|||
|
|
}
|