819e76dc60
This reverts commit 1de7e818a4.
Change-Id: Ie1100fd1af636a0538f589845b9391ba40dbf12a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90417
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "cpp.h"
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extern int Cplusplus;
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Nlist *kwdefined;
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char wd[128];
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/*
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ER: Table was made extra large, because there seems to be a problem with the
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chaining. An nlist->next is sometimes overwritten somewhere, which
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results in a SIGSEGV. I canceled the GDB with watchpoint after 2 days, though...
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It works this way for now...
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*/
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#define NLSIZE 15000
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static Nlist *nlist[NLSIZE];
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struct kwtab
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{
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char *kw;
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int val;
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int flag;
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};
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static const struct kwtab kwtab[] =
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{
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{"if", KIF, ISKW},
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{"ifdef", KIFDEF, ISKW},
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{"ifndef", KIFNDEF, ISKW},
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{"elif", KELIF, ISKW},
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{"else", KELSE, ISKW},
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{"endif", KENDIF, ISKW},
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{"include", KINCLUDE, ISKW},
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{"include_next", KINCLUDENEXT, ISKW},
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{"import", KIMPORT, ISKW},
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{"define", KDEFINE, ISKW},
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{"undef", KUNDEF, ISKW},
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{"line", KLINE, ISKW},
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{"error", KERROR, ISKW},
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{"pragma", KPRAGMA, ISKW},
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{"ident", KIDENT, ISKW},
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{"eval", KEVAL, ISKW},
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{"defined", KDEFINED, ISDEFINED + ISUNCHANGE},
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{"machine", KMACHINE, ISDEFINED + ISUNCHANGE},
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{"__LINE__", KLINENO, ISMAC + ISUNCHANGE},
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{"__FILE__", KFILE, ISMAC + ISUNCHANGE},
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{"__DATE__", KDATE, ISMAC + ISUNCHANGE},
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{"__TIME__", KTIME, ISMAC + ISUNCHANGE},
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{"__STDC__", KSTDC, ISUNCHANGE},
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{NULL, 0, 0}
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};
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unsigned long namebit[077 + 1];
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void
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setup_kwtab(void)
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{
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struct kwtab const *kp;
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Nlist *np;
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Token t;
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static Token deftoken[1] = {{NAME, 0, 7, (uchar *) "defined", 0}};
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static Tokenrow deftr = {deftoken, deftoken, deftoken + 1, 1};
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for (kp = kwtab; kp->kw; kp++)
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{
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t.t = (uchar *) kp->kw;
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t.len = strlen(kp->kw);
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np = lookup(&t, 1);
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np->flag = (char) kp->flag;
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np->val = (char) kp->val;
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if (np->val == KDEFINED)
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{
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kwdefined = np;
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np->val = NAME;
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np->vp = &deftr;
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np->ap = NULL;
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}
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}
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}
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Nlist *
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lookup(Token * tp, int install)
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{
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unsigned int h;
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Nlist *np;
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uchar *cp, *cpe;
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h = 0;
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for (cp = tp->t, cpe = cp + tp->len; cp < cpe;)
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h += *cp++;
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h %= NLSIZE;
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np = nlist[h];
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while (np)
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{
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if (*tp->t == *np->name && tp->len == (unsigned int)np->len
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&& strncmp((char *)tp->t, (char *)np->name, tp->len) == 0)
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return np;
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np = np->next;
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}
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if (install)
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{
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np = new(Nlist);
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np->vp = NULL;
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np->ap = NULL;
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np->flag = 0;
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np->val = 0;
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np->len = tp->len;
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np->name = newstring(tp->t, tp->len, 0);
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np->next = nlist[h];
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nlist[h] = np;
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quickset(tp->t[0], tp->len > 1 ? tp->t[1] : 0);
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return np;
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}
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return NULL;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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