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      1 /*	$NetBSD: lesskey.h,v 1.4 2023/10/06 05:49:49 simonb Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1984-2023  Mark Nudelman
      5  *
      6  * You may distribute under the terms of either the GNU General Public
      7  * License or the Less License, as specified in the README file.
      8  *
      9  * For more information, see the README file.
     10  */
     11 
     12 #include "xbuf.h"
     13 
     14 /*
     15  * Format of a lesskey file:
     16  *
     17  *      LESSKEY_MAGIC (4 bytes)
     18  *       sections...
     19  *      END_LESSKEY_MAGIC (4 bytes)
     20  *
     21  * Each section is:
     22  *
     23  *      section_MAGIC (1 byte)
     24  *      section_length (2 bytes)
     25  *      key table (section_length bytes)
     26  */
     27 #define C0_LESSKEY_MAGIC        '\0'
     28 #define C1_LESSKEY_MAGIC        'M'
     29 #define C2_LESSKEY_MAGIC        '+'
     30 #define C3_LESSKEY_MAGIC        'G'
     31 
     32 #define CMD_SECTION             'c'
     33 #define EDIT_SECTION            'e'
     34 #define VAR_SECTION             'v'
     35 #define END_SECTION             'x'
     36 
     37 #define C0_END_LESSKEY_MAGIC    'E'
     38 #define C1_END_LESSKEY_MAGIC    'n'
     39 #define C2_END_LESSKEY_MAGIC    'd'
     40 
     41 /* */
     42 #define KRADIX          64
     43 
     44 struct lesskey_cmdname
     45 {
     46 	char *cn_name;
     47 	int cn_action;
     48 };
     49 
     50 struct lesskey_table
     51 {
     52 	struct lesskey_cmdname *names;
     53 	struct xbuffer buf;
     54 	int is_var;
     55 };
     56 
     57 struct lesskey_tables
     58 {
     59 	struct lesskey_table *currtable;
     60 	struct lesskey_table cmdtable;
     61 	struct lesskey_table edittable;
     62 	struct lesskey_table vartable;
     63 };
     64 
     65 extern int parse_lesskey(char *infile, struct lesskey_tables *tables);
     66