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doxygen/src/cppvalue.cpp at master · makelinux/doxygen · GitHub
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/*
*****************************************************************************
*
*
*
*
* Copyright (C) 1997-2015 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#
include
<
stdlib.h
>
#
include
"
cppvalue.h
"
#
include
"
constexp.h
"
CPPValue
parseOctal
()
{
long
val =
0
;
for
(
const
char
*p = g_strToken.
data
(); *p !=
0
; p++)
{
if
(*p >=
'
0
'
&& *p <=
'
7
'
) val = val *
8
+ *p -
'
0
'
;
}
return
CPPValue
(val);
}
CPPValue
parseDecimal
()
{
long
val =
0
;
for
(
const
char
*p = g_strToken.
data
(); *p !=
0
; p++)
{
if
(*p >=
'
0
'
&& *p <=
'
9
'
) val = val *
10
+ *p -
'
0
'
;
}
return
CPPValue
(val);
}
CPPValue
parseHexadecimal
()
{
long
val =
0
;
for
(
const
char
*p = g_strToken.
data
(); *p !=
0
; p++)
{
if
(*p >=
'
0
'
&& *p <=
'
9
'
) val = val *
16
+ *p -
'
0
'
;
else
if
(*p >=
'
a
'
&& *p <=
'
f
'
) val = val *
16
+ *p -
'
a
'
+
10
;
else
if
(*p >=
'
A
'
&& *p <=
'
F
'
) val = val *
16
+ *p -
'
A
'
+
10
;
}
//
printf("parseHexadecimal %s->%x\n",g_strToken.data(),val);
return
CPPValue
(val);
}
CPPValue
parseCharacter
()
//
does not work for '\n' and the alike
{
if
(g_strToken[
1
]==
'
\\
'
)
{
switch
(g_strToken[
2
])
{
case
'
n
'
:
return
CPPValue
((
long
)
'
\n
'
);
case
'
t
'
:
return
CPPValue
((
long
)
'
\t
'
);
case
'
v
'
:
return
CPPValue
((
long
)
'
\v
'
);
case
'
b
'
:
return
CPPValue
((
long
)
'
\b
'
);
case
'
r
'
:
return
CPPValue
((
long
)
'
\r
'
);
case
'
f
'
:
return
CPPValue
((
long
)
'
\f
'
);
case
'
a
'
:
return
CPPValue
((
long
)
'
\a
'
);
case
'
\\
'
:
return
CPPValue
((
long
)
'
\\
'
);
case
'
?
'
:
return
CPPValue
((
long
)
'
\?
'
);
case
'
\'
'
:
return
CPPValue
((
long
)
'
\'
'
);
case
'
"
'
:
return
CPPValue
((
long
)
'
"
'
);
case
'
0
'
:
//
fall through
case
'
1
'
:
//
fall through
case
'
2
'
:
//
fall through
case
'
3
'
:
//
fall through
case
'
4
'
:
//
fall through
case
'
5
'
:
//
fall through
case
'
6
'
:
//
fall through
case
'
7
'
:
//
fall through
return
parseOctal
();
case
'
x
'
:
case
'
X
'
:
return
parseHexadecimal
();
default
:
printf
(
"
Invalid escape sequence %s found!
\n
"
,g_strToken.
data
());
return
CPPValue
(
0L
);
}
}
return
CPPValue
((
long
)g_strToken[
1
]);
}
CPPValue
parseFloat
()
{
return
CPPValue
(
atof
(g_strToken));
}
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