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/*
* This source code is part of hsc, a html-preprocessor,
* Copyright (C) 1995-1998 Thomas Aglassinger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* hsclib/idref.c
*
* functions for id-references
*
* updated: 14-Oct-1996
* created: 12-Apr-1995
*
*/
#include "hsclib/inc_base.h"
#include <stdarg.h>
#include "ugly/ustrlist.h"
#include "hscprj/document.h"
#define NOEXTERN_HSCLIB_ID_H
#include "hsclib/idref.h"
#if DEBUG_ID
#define DIHP(x) if ( hp->debug ) x
#define DI(x) x
#else
#define DIHP(x) /* nufin */
#define DI(x) /* nufin */
#endif
/* hsc_msg_unknown_id: warning about unknown id-refrence */
VOID hsc_msg_unknown_id(HSCPRC * hp, STRPTR filename, STRPTR id)
{
if (filename)
hsc_message(hp, MSG_UNKN_ID, "unknown id `%s#%s'",
filename, id);
else
hsc_message(hp, MSG_UNKN_ID, "unknown id %q", id);
}
/* macros for local compare-callbacks */
#define cmp_idname cmp_string_node
#define cmp_idref cmp_string_node
#define cmp_id_local cmp_string_node
/*
*
* new- and del-methodes
*
*/
/*
* del/new_idref
*/
/* del_idref: remove referenced id */
VOID del_idref(APTR data)
{
IDREF *idref = (IDREF *) data;
ufreestr(idref->name);
del_infilepos(idref->fpos);
ufree(idref);
}
/* new_id_local: create new reference to local id */
static IDREF *new_idref(STRPTR id, INFILEPOS * fpos)
{
IDREF *newid = (IDREF *) umalloc(sizeof(IDREF));
newid->name = strclone(id);
newid->fpos = fpos;
return (newid);
}
VOID prt_idref(FILE * stream, APTR data)
{
IDREF *idref = (IDREF *) data;
INFILEPOS *fpos = idref->fpos;
fprintf(stream, "`%s' at (%lu,%lu)\n",
idref->name, ifp_get_y(fpos), ifp_get_x(fpos));
}
/*
* add_local_iddef
*
* define a new local ID that can be refered to
*/
BOOL add_local_iddef(HSCPRC * hp, STRPTR id)
{
INFILEPOS *fpos = new_infilepos(hp->inpf);
HSCIDD *iddef = find_iddef(hp->project->document, id);
DIHP(fprintf(stderr, DHL "add ref to id `%s' at `%s' (%lu,%lu)\n",
id, ifp_get_fname(fpos),
ifp_get_y(fpos), ifp_get_x(fpos)));
/* check for duplicate definition */
if (iddef)
{
/* duplicate definition */
DIHP(fprintf(stderr, DHL " duplicate definition\n"));
hsc_message(hp, MSG_REDEFINE_ID,
"local id %q already declared", id);
set_infilepos(hp->inpf, iddef->fpos);
hsc_message(hp, MSG_REDEFINE_ID,
"(location of previous declaration)");
set_infilepos(hp->inpf, fpos);
del_infilepos(fpos);
}
else
{
/* remember new local id */
iddef = app_iddef(hp->project->document, id);
iddef->caller = fpos2caller(fpos);
iddef->fpos = fpos;
DIHP(fprintf(stderr, DHL " append to local iddefs\n"));
}
return (TRUE);
}
/*
* check_id_local
*
* append id to idref-list so it as checked when
* check_all_local_idref() is called
*/
VOID add_local_idref(HSCPRC * hp, STRPTR id)
{
INFILEPOS *fpos = new_infilepos(hp->inpf);
DIHP(fprintf(stderr, DHL " check id: `#%s' (local)\n", id));
DIHP(fprintf(stderr, DHL " append to idref\n"));
app_dlnode(hp->idrefs, new_idref(id, fpos));
}
/*
* check_local_idref
*/
static BOOL check_local_idref(HSCPRC * hp, IDREF * idref)
{
HSCIDD *iddef = find_iddef(hp->project->document, idref->name);
BOOL found = FALSE;
if (iddef)
{
found = TRUE;
DIHP(fprintf(stderr, DHL " local id ok: `%s'\n", idref->name));
}
else
{
DIHP(
{
INFILEPOS * fpos = idref->fpos;
fprintf(stderr, DHL " local id unknown: `%s' (%lu,%lu)\n",
idref->name, ifp_get_y(fpos), ifp_get_x(fpos));
}
);
set_infilepos(hp->inpf, idref->fpos);
hsc_msg_unknown_id(hp, NULL, idref->name);
}
return (found);
}
/*
* check_all_local_idref
*/
BOOL check_all_local_idref(HSCPRC * hp)
{
BOOL ok = TRUE;
DLNODE *nd = NULL;
INFILEPOS *infpos = new_infilepos(hp->inpf);
DIHP(fprintf(stderr, DHL "check local IDs\n"));
DIHP(
{
fprintf(stderr, DHL " local IDs defined:\n");
fprintf_dllist(stderr, hp->project->document->iddefs, prt_iddef);
fprintf(stderr, DHL " local IDs referenced:\n");
fprintf_dllist(stderr, hp->idrefs, prt_idref);
}
);
nd = dll_first(hp->idrefs);
while (nd)
{
check_local_idref(hp, ((IDREF *) nd->data));
nd = dln_next(nd);
}
set_infilepos(hp->inpf, infpos);
del_infilepos(infpos);
return (ok);
}
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