/*
 *  hsclib/tag_a.c
 *
 *  tag-callback for "<A..>" (anchor)
 *
 *  Copyright (C) 1995,96  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.
 *
 *  updated: 31-Aug-1996
 *  created:  3-Aug-1995
 */

#include "hsclib/inc_tagcb.h"
#include "hscprj/document.h"

/*
 *  TODO: strip only HREF part, if a NAME is within <A>
 *  TODO: insabg, insaed: configurable format str for inserted anchors
 *  TODO: local $INSANCH option for A HREF tag
 */

/*
 *  handle_anchor
 *
 *  handle tag <A>:
 *  - check for HREF or NAME set
 *  - update value for attribute HSC.ANCHOR
 *
 *  TODO: handle NAME="xx"
 */
BOOL handle_anchor(HSCPRC * hp, HSCTAG * tag)
{
    HSCVAR *vhref = find_varname(tag->attr, "HREF");
    HSCVAR *vname = find_varname(tag->attr, "NAME");
    STRPTR href = NULL;
    STRPTR name = NULL;

    /* set attribute values */
    if (vhref)
        href = vhref->text;
    if (vname)
        name = vname->text;

    /* tell parser that he is inside an anchor */
    if (href)
    {

        HSCATTR *anchor_attr = find_varname(hp->defattr, ANCHOR_ATTR);

        if (anchor_attr)
        {
            set_vartext(anchor_attr, href);
        }
        else
        {
            panic("no anchor-attribute");
        }

        hp->inside_anchor = TRUE;
    }

    /* check for both HREF and NAME missing */
    if ((!href) && (!name))
    {

        hsc_message(hp, MSG_ANCH_NO_NMHR,
                    "%T without HREF or NAME", tag);

    }

    return (TRUE);
}

/*
 *  handle_cancher
 *
 *  closing handle for <A>
 */
BOOL handle_canchor(HSCPRC * hp, HSCTAG * tag)
{
    hp->inside_anchor = FALSE;

    /* write whole tag */

    return (TRUE);

}