summaryrefslogtreecommitdiff
path: root/wrapper/plugin-parse.h
blob: e4bfe2bf4cee4582c16a0d6f54283b89a11e2bd1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/* wrapper/plugin-parse.c -- parse rvs plugin config files
   system depends: <stdio.h> <error.h>
   Copyright (C) 2009 Luke Shumaker
   
   This file is part of rvs.
   
   rvs 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, or (at your
   option) any later version.
   
   rvs 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 rvs; see the file COPYING.
   If not, write to the Free Software Foundation,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef FILE_plugin_parse_h_SEEN
#define FILE_plugin_parse_h_SEEN

#include <stdio.h>
#include <error.h> /* only used in `plugin_parse_escape' for `error' */

#include "rvs.h"
#include "plugins.h"

void
plugin_parse_comment (FILE *file)
{
	char c;
	while ( (c=getc(file)) != EOF ) {
		if ( c == '\n' ) {
			ungetc (c, file);
			break;
		}
	}
}

char
plugin_parse_escape(FILE *file)
{
	char c=getc(file);
	switch (c) {
		case 'n':
			c = '\n';
		case '\\':
		case '#':
		case ':':
			break;
		default:
			error(EXIT_FAILURE,0,"syntax error");
			break;
	}
	return c;
}

#define _parse_share(string) \
	case '#':\
		plugin_parse_comment(file);\
		break;\
	case '\\':\
		c[0]=plugin_parse_escape(file);\
	default:\
		stradds(&nbytes,string,(char *)&c);\
		break;

char *
plugin_parse_depend (FILE *file)
{
	size_t nbytes = 10;
	char *string = (char *)xmalloc(nbytes);
	string[0]='\0';
	
	char c[2] = " \0";
	while ( (c[0]=getc(file)) != EOF ) {
		switch (c[0]) {
			case '\n':
				ungetc (c[0], file);
				return string;
				break;
			_parse_share(&string)
		}
	}
	return string;
}

struct plugin_command *
plugin_parse (FILE *file)
{
	struct plugin_command *command;
	
	char c[2] = " \0";
	c[0]=getc(file);
	
	if (c[0]==EOF)
		command=NULL;
	else {
		ungetc (c[0], file);
		command=plugin_mk_command();
		
		size_t nbytes = 10;
		command->name = (char *)xmalloc(nbytes);
		command->name[0]='\0';
		
		while ( (c[0]=getc(file)) != EOF ) {
			switch (c[0]) {
				case '\n':
					/*if (strlen(command->name)==0) {*/
					if (c[0]=='\n') {
						plugin_free_command(command);
						return plugin_parse(file);
					} else
						command->next=plugin_parse(
							file);
					break;
				case ':':
					command->depends=plugin_parse_depend(
						file);
					break;
				_parse_share(&(command->name))
			}
		}
	}
	return command;
}

#endif