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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cpp.h"
extern int Cplusplus;
Nlist *kwdefined;
char wd[128];
/*
ER: Table was made extra large, because there seems to be a problem with the
chaining. An nlist->next is sometimes overwritten somewhere, which
results in a SIGSEGV. I canceled the GDB with watchpoint after 2 days, though...
It works this way for now...
*/
#define NLSIZE 15000
static Nlist *nlist[NLSIZE];
struct kwtab
{
char *kw;
int val;
int flag;
};
static const struct kwtab 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, 0, 0}
};
unsigned long namebit[077 + 1];
void
setup_kwtab(void)
{
struct kwtab const *kp;
Nlist *np;
Token t;
static Token deftoken[1] = {{NAME, 0, 7, (uchar *) "defined", 0}};
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 = (char) kp->flag;
np->val = (char) kp->val;
if (np->val == KDEFINED)
{
kwdefined = np;
np->val = NAME;
np->vp = &deftr;
np->ap = NULL;
}
}
}
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;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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