command.c revision 9663:ace9a2ac3683 
1/*
2    parted - a frontend to libparted
3    Copyright (C) 1999, 2000, 2007 Free Software Foundation, Inc.
4
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3 of the License, or
8    (at your option) any later version.
9
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14
15    You should have received a copy of the GNU General Public License
16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
17*/
18
19#include <config.h>
20#include "command.h"
21#include "ui.h"
22
23#include <parted/debug.h>
24
25#include <stdlib.h>
26#include <string.h>
27#include "xalloc.h"
28
29Command*
30command_create (const StrList* names,
31		int (*method) (PedDevice** dev),
32		const StrList* summary,
33		const StrList* help,
34                const int non_interactive)
35{
36	Command*	cmd;
37
38	cmd = xmalloc (sizeof (Command));
39
40        if (non_interactive)
41                cmd->non_interactive = 1;
42        else
43                cmd->non_interactive = 0;
44
45	cmd->names = (StrList*) names;
46	cmd->method = method;
47	cmd->summary = (StrList*) summary;
48	cmd->help = (StrList*) help;
49
50	return cmd;
51}
52
53void
54command_destroy (Command* cmd)
55{
56	str_list_destroy (cmd->names);
57	str_list_destroy (cmd->summary);
58	str_list_destroy (cmd->help);
59	free (cmd);
60}
61
62void
63command_register (Command** list, Command* cmd)
64{
65	int	i;
66
67	for (i = 0; list [i]; i++);
68
69	list [i] = cmd;
70	list [i + 1] = (Command*) NULL;
71}
72
73Command*
74command_get (Command** list, char* name)
75{
76	int		i;
77	int		partial_match = -1;
78	int		ambiguous = 0;
79
80	if (!name)
81		return NULL;
82
83	for (i=0; list [i]; i++) {
84		switch (str_list_match_any (list [i]->names, name)) {
85		case 2:
86			return list [i];
87
88		case 1:
89			if (!ambiguous) {
90				if (partial_match == -1) {
91					partial_match = i;
92				} else {
93					partial_match = -1;
94					ambiguous = 1;
95				}
96			}
97		}
98	}
99
100	if (partial_match == -1)
101		return NULL;
102	else
103		return list [partial_match];
104}
105
106StrList*
107command_get_names (Command** list)
108{
109	Command**	walk;
110	StrList*	result = NULL;
111
112	for (walk = list; *walk; walk++)
113		result = str_list_join (result,
114					str_list_duplicate ((*walk)->names));
115	return result;
116}
117
118void
119command_print_summary (Command* cmd)
120{
121        fputs ("  ", stdout);
122	str_list_print_wrap (cmd->summary, screen_width(), 2, 8);
123	putchar ('\n');
124}
125
126void
127command_print_help (Command* cmd)
128{
129	command_print_summary (cmd);
130	if (cmd->help) {
131                fputs ("\n\t", stdout);
132		str_list_print_wrap (cmd->help, screen_width(), 8, 8);
133	}
134}
135
136int
137command_run (Command* cmd, PedDevice** dev)
138{
139	return cmd->method (dev);
140}
141
142