mkhelp.c revision 240121 
1/*
2 * Copyright (C) 1984-2012  Mark Nudelman
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information, see the README file.
8 */
9
10
11/*
12 * Silly little program to generate the help.c source file
13 * from the less.hlp text file.
14 * help.c just contains a char array whose contents are
15 * the contents of less.hlp.
16 */
17
18#include <stdio.h>
19
20	int
21main(argc, argv)
22	int argc;
23	char *argv[];
24{
25	int ch;
26	int prevch;
27
28	printf("/* This file was generated by mkhelp from less.hlp */\n");
29	printf("#include \"less.h\"\n");
30	printf("constant char helpdata[] = {\n");
31	ch = 0;
32	while (prevch = ch, (ch = getchar()) != EOF)
33	{
34		switch (ch)
35		{
36		case '\'':
37			printf("'\\'',");
38			break;
39		case '\\':
40			printf("'\\\\',");
41			break;
42		case '\b':
43			printf("'\\b',");
44			break;
45		case '\t':
46			printf("'\\t',");
47			break;
48		case '\n':
49			if (prevch != '\r')
50				printf("'\\n',\n");
51			break;
52		case '\r':
53			if (prevch != '\n')
54				printf("'\\n',\n");
55			break;
56		default:
57			if (ch >= ' ' && ch < 0x7f)
58				printf("'%c',", ch);
59			else
60				printf("0x%02x,", ch);
61			break;
62		}
63	}
64	/* Add an extra null char to avoid having a trailing comma. */
65	printf(" 0 };\n");
66	printf("constant int size_helpdata = sizeof(helpdata) - 1;\n");
67	return (0);
68}
69