/* Module Name: IdxDef.H

 * Description:
 *      Define data structures used by IdxTeX
 *
 * Author:      R L Aurbach     CR&DS MIS Group    26-Apr-1986
 *
 * Modification History:
 *
 * Version     Initials    Date         Description
 * ------------------------------------------------------------------------
 * 1-001        RLA     26-Apr-1986     Original Code
 * 1-002        RLA     03-May-1986     Add support for page-no highlighting
 * 1-003        RLA     14-Apr-1987     Add new page-no highlight -- ff
 * 2-004        RLA     14-Apr-1987     Add "see also" listhead
 * 3-001        F.H.    17-May-1991     converted to portable C
 * 3-002        S.I.    30-May-1992     Added \indexname \seename and 
 *                                      \alsoname for intern. support
 */

/* Definitions                                                  */
#define		IDX_K_NONE	0	/* No highlighting        */
#define		IDX_K_UNDERLINE	1	/* Underline              */
#define		IDX_K_ITALIC	2	/* Italicize              */
#define		IDX_K_BOLD	3	/* BoldFace               */
#define		IDX_K_FOLLOW	4	/* Following              */
#define		IDX_K_ARTICLE	1	/* /TOC:ARTICLE seen      */
#define		IDX_K_REPORT	2	/* /TOC:REPORT seen       */

/* Declarations */
typedef struct pgnode
{
    struct pgnode *link;	/* Link to next page-ref */
    char *vol;			/* Volume string ptr    */
    char *page_dsc;		/* Page-ref string      */
    char highlight;		/* Highlight flag       */
}
PGNODE, *PGNODE_PTR;

typedef struct node
{
    struct node *link;		/* Link to next node    */
    char *spell;		/* Spell string         */
    char *item;			/* Item string          */
    struct node *subhead;	/* Subitem listhead     */
    struct pgnode *pghead;	/* Page-ref listhead    */
    struct pgnode *seehead;	/* See-also listhead    */
}
TREE, *TREE_PTR;