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-rw-r--r--soltools/cpp/_nlist.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/soltools/cpp/_nlist.c b/soltools/cpp/_nlist.c
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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: */