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/*
* Copyright 2003-2018 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ArgParser.hxx"
#include "RangeArg.hxx"
#include "Ack.hxx"
#include "Chrono.hxx"
#include "util/NumberParser.hxx"
#include <stdlib.h>
uint32_t
ParseCommandArgU32(const char *s)
{
char *test;
auto value = strtoul(s, &test, 10);
if (test == s || *test != '\0')
throw FormatProtocolError(ACK_ERROR_ARG,
"Integer expected: %s", s);
return value;
}
int
ParseCommandArgInt(const char *s, int min_value, int max_value)
{
char *test;
auto value = strtol(s, &test, 10);
if (test == s || *test != '\0')
throw FormatProtocolError(ACK_ERROR_ARG,
"Integer expected: %s", s);
if (value < min_value || value > max_value)
throw FormatProtocolError(ACK_ERROR_ARG,
"Number too large: %s", s);
return (int)value;
}
int
ParseCommandArgInt(const char *s)
{
return ParseCommandArgInt(s,
std::numeric_limits<int>::min(),
std::numeric_limits<int>::max());
}
RangeArg
ParseCommandArgRange(const char *s)
{
char *test, *test2;
auto value = strtol(s, &test, 10);
if (test == s || (*test != '\0' && *test != ':'))
throw FormatProtocolError(ACK_ERROR_ARG,
"Integer or range expected: %s", s);
if (value == -1 && *test == 0)
/* compatibility with older MPD versions: specifying
"-1" makes MPD display the whole list */
return RangeArg::All();
if (value < 0)
throw FormatProtocolError(ACK_ERROR_ARG,
"Number is negative: %s", s);
if (value > std::numeric_limits<int>::max())
throw FormatProtocolError(ACK_ERROR_ARG,
"Number too large: %s", s);
RangeArg range;
range.start = (unsigned)value;
if (*test == ':') {
value = strtol(++test, &test2, 10);
if (*test2 != '\0')
throw FormatProtocolError(ACK_ERROR_ARG,
"Integer or range expected: %s",
s);
if (test == test2)
value = std::numeric_limits<int>::max();
if (value < 0)
throw FormatProtocolError(ACK_ERROR_ARG,
"Number is negative: %s", s);
if (value > std::numeric_limits<int>::max())
throw FormatProtocolError(ACK_ERROR_ARG,
"Number too large: %s", s);
range.end = (unsigned)value;
} else {
range.end = (unsigned)value + 1;
}
return range;
}
unsigned
ParseCommandArgUnsigned(const char *s, unsigned max_value)
{
char *endptr;
auto value = strtoul(s, &endptr, 10);
if (endptr == s || *endptr != 0)
throw FormatProtocolError(ACK_ERROR_ARG,
"Integer expected: %s", s);
if (value > max_value)
throw FormatProtocolError(ACK_ERROR_ARG,
"Number too large: %s", s);
return (unsigned)value;
}
unsigned
ParseCommandArgUnsigned(const char *s)
{
return ParseCommandArgUnsigned(s,
std::numeric_limits<unsigned>::max());
}
bool
ParseCommandArgBool(const char *s)
{
char *endptr;
auto value = strtol(s, &endptr, 10);
if (endptr == s || *endptr != 0 || (value != 0 && value != 1))
throw FormatProtocolError(ACK_ERROR_ARG,
"Boolean (0/1) expected: %s", s);
return !!value;
}
float
ParseCommandArgFloat(const char *s)
{
char *endptr;
auto value = ParseFloat(s, &endptr);
if (endptr == s || *endptr != 0)
throw FormatProtocolError(ACK_ERROR_ARG,
"Float expected: %s", s);
return value;
}
SongTime
ParseCommandArgSongTime(const char *s)
{
auto value = ParseCommandArgFloat(s);
if (value < 0)
throw FormatProtocolError(ACK_ERROR_ARG,
"Negative value not allowed: %s", s);
return SongTime::FromS(value);
}
SignedSongTime
ParseCommandArgSignedSongTime(const char *s)
{
auto value = ParseCommandArgFloat(s);
return SongTime::FromS(value);
}
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