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#include
"Python.h"
#include
"bytes_methods.h"
PyDoc_STRVAR_shared
(
_Py_isspace__doc__
,
"B.isspace() -> bool\n\
\n\
Return True if all characters in B are whitespace\n\
and there is at least one character in B, False otherwise."
);
PyObject
*
_Py_bytes_isspace
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
/* Shortcut for single character strings */
if
(
len
==
1
&&
Py_ISSPACE
(
*
p
))
Py_RETURN_TRUE
;
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
for
(;
p
<
e
;
p
++
) {
if
(!
Py_ISSPACE
(
*
p
))
Py_RETURN_FALSE
;
}
Py_RETURN_TRUE
;
}
PyDoc_STRVAR_shared
(
_Py_isalpha__doc__
,
"B.isalpha() -> bool\n\
\n\
Return True if all characters in B are alphabetic\n\
and there is at least one character in B, False otherwise."
);
PyObject
*
_Py_bytes_isalpha
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
/* Shortcut for single character strings */
if
(
len
==
1
&&
Py_ISALPHA
(
*
p
))
Py_RETURN_TRUE
;
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
for
(;
p
<
e
;
p
++
) {
if
(!
Py_ISALPHA
(
*
p
))
Py_RETURN_FALSE
;
}
Py_RETURN_TRUE
;
}
PyDoc_STRVAR_shared
(
_Py_isalnum__doc__
,
"B.isalnum() -> bool\n\
\n\
Return True if all characters in B are alphanumeric\n\
and there is at least one character in B, False otherwise."
);
PyObject
*
_Py_bytes_isalnum
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
/* Shortcut for single character strings */
if
(
len
==
1
&&
Py_ISALNUM
(
*
p
))
Py_RETURN_TRUE
;
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
for
(;
p
<
e
;
p
++
) {
if
(!
Py_ISALNUM
(
*
p
))
Py_RETURN_FALSE
;
}
Py_RETURN_TRUE
;
}
PyDoc_STRVAR_shared
(
_Py_isdigit__doc__
,
"B.isdigit() -> bool\n\
\n\
Return True if all characters in B are digits\n\
and there is at least one character in B, False otherwise."
);
PyObject
*
_Py_bytes_isdigit
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
/* Shortcut for single character strings */
if
(
len
==
1
&&
Py_ISDIGIT
(
*
p
))
Py_RETURN_TRUE
;
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
for
(;
p
<
e
;
p
++
) {
if
(!
Py_ISDIGIT
(
*
p
))
Py_RETURN_FALSE
;
}
Py_RETURN_TRUE
;
}
PyDoc_STRVAR_shared
(
_Py_islower__doc__
,
"B.islower() -> bool\n\
\n\
Return True if all cased characters in B are lowercase and there is\n\
at least one cased character in B, False otherwise."
);
PyObject
*
_Py_bytes_islower
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
int
cased
;
/* Shortcut for single character strings */
if
(
len
==
1
)
return
PyBool_FromLong
(
Py_ISLOWER
(
*
p
));
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
cased
=
0
;
for
(;
p
<
e
;
p
++
) {
if
(
Py_ISUPPER
(
*
p
))
Py_RETURN_FALSE
;
else
if
(!
cased
&&
Py_ISLOWER
(
*
p
))
cased
=
1
;
}
return
PyBool_FromLong
(
cased
);
}
PyDoc_STRVAR_shared
(
_Py_isupper__doc__
,
"B.isupper() -> bool\n\
\n\
Return True if all cased characters in B are uppercase and there is\n\
at least one cased character in B, False otherwise."
);
PyObject
*
_Py_bytes_isupper
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
int
cased
;
/* Shortcut for single character strings */
if
(
len
==
1
)
return
PyBool_FromLong
(
Py_ISUPPER
(
*
p
));
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
cased
=
0
;
for
(;
p
<
e
;
p
++
) {
if
(
Py_ISLOWER
(
*
p
))
Py_RETURN_FALSE
;
else
if
(!
cased
&&
Py_ISUPPER
(
*
p
))
cased
=
1
;
}
return
PyBool_FromLong
(
cased
);
}
PyDoc_STRVAR_shared
(
_Py_istitle__doc__
,
"B.istitle() -> bool\n\
\n\
Return True if B is a titlecased string and there is at least one\n\
character in B, i.e. uppercase characters may only follow uncased\n\
characters and lowercase characters only cased ones. Return False\n\
otherwise."
);
PyObject
*
_Py_bytes_istitle
(
const
char
*
cptr
,
Py_ssize_t
len
)
{
const
unsigned
char
*
p
=
(
unsigned
char
*
)
cptr
;
const
unsigned
char
*
e
;
int
cased
,
previous_is_cased
;
/* Shortcut for single character strings */
if
(
len
==
1
)
return
PyBool_FromLong
(
Py_ISUPPER
(
*
p
));
/* Special case for empty strings */
if
(
len
==
0
)
Py_RETURN_FALSE
;
e
=
p
+
len
;
cased
=
0
;
previous_is_cased
=
0
;
for
(;
p
<
e
;
p
++
) {
const
unsigned
char
ch
=
*
p
;
if
(
Py_ISUPPER
(
ch
)) {
if
(
previous_is_cased
)
Py_RETURN_FALSE
;
previous_is_cased
=
1
;
cased
=
1
;
}
else
if
(
Py_ISLOWER
(
ch
)) {
if
(!
previous_is_cased
)
Py_RETURN_FALSE
;
previous_is_cased
=
1
;
cased
=
1
;
}
else
previous_is_cased
=
0
;
}
return
PyBool_FromLong
(
cased
);
}
PyDoc_STRVAR_shared
(
_Py_lower__doc__
,
"B.lower() -> copy of B\n\
\n\
Return a copy of B with all ASCII characters converted to lowercase."
);
void
_Py_bytes_lower
(
char
*
result
,
const
char
*
cptr
,
Py_ssize_t
len
)
{
Py_ssize_t
i
;
for
(
i
=
0
;
i
<
len
;
i
++
) {
result
[
i
]
=
Py_TOLOWER
((
unsigned
char
)
cptr
[
i
]);
}
}
PyDoc_STRVAR_shared
(
_Py_upper__doc__
,
"B.upper() -> copy of B\n\
\n\
Return a copy of B with all ASCII characters converted to uppercase."
);
void
_Py_bytes_upper
(
char
*
result
,
const
char
*
cptr
,
Py_ssize_t
len
)
{
Py_ssize_t
i
;
for
(
i
=
0
;
i
<
len
;
i
++
) {
result
[
i
]
=
Py_TOUPPER
((
unsigned
char
)
cptr
[
i
]);
}
}
PyDoc_STRVAR_shared
(
_Py_title__doc__
,
"B.title() -> copy of B\n\
\n\
Return a titlecased version of B, i.e. ASCII words start with uppercase\n\
characters, all remaining cased characters have lowercase."
);
void
_Py_bytes_title
(
char
*
result
,
char
*
s
,
Py_ssize_t
len
)
{
Py_ssize_t
i
;
int
previous_is_cased
=
0
;
for
(
i
=
0
;
i
<
len
;
i
++
) {
int
c
=
Py_CHARMASK
(
*
s
++
);
if
(
Py_ISLOWER
(
c
)) {
if
(!
previous_is_cased
)
c
=
Py_TOUPPER
(
c
);
previous_is_cased
=
1
;
}
else
if
(
Py_ISUPPER
(
c
)) {
if
(
previous_is_cased
)
c
=
Py_TOLOWER
(
c
);
previous_is_cased
=
1
;
}
else
previous_is_cased
=
0
;
*
result
++
=
c
;
}
}
PyDoc_STRVAR_shared
(
_Py_capitalize__doc__
,
"B.capitalize() -> copy of B\n\
\n\
Return a copy of B with only its first character capitalized (ASCII)\n\
and the rest lower-cased."
);
void
_Py_bytes_capitalize
(
char
*
result
,
char
*
s
,
Py_ssize_t
len
)
{
Py_ssize_t
i
;
if
(
0
<
len
) {
int
c
=
Py_CHARMASK
(
*
s
++
);
if
(
Py_ISLOWER
(
c
))
*
result
=
Py_TOUPPER
(
c
);
else
*
result
=
c
;
result
++
;
}
for
(
i
=
1
;
i
<
len
;
i
++
) {
int
c
=
Py_CHARMASK
(
*
s
++
);
if
(
Py_ISUPPER
(
c
))
*
result
=
Py_TOLOWER
(
c
);
else
*
result
=
c
;
result
++
;
}
}
PyDoc_STRVAR_shared
(
_Py_swapcase__doc__
,
"B.swapcase() -> copy of B\n\
\n\
Return a copy of B with uppercase ASCII characters converted\n\
to lowercase ASCII and vice versa."
);
void
_Py_bytes_swapcase
(
char
*
result
,
char
*
s
,
Py_ssize_t
len
)
{
Py_ssize_t
i
;
for
(
i
=
0
;
i
<
len
;
i
++
) {
int
c
=
Py_CHARMASK
(
*
s
++
);
if
(
Py_ISLOWER
(
c
)) {
*
result
=
Py_TOUPPER
(
c
);
}
else
if
(
Py_ISUPPER
(
c
)) {
*
result
=
Py_TOLOWER
(
c
);
}
else
*
result
=
c
;
result
++
;
}
}
PyDoc_STRVAR_shared
(
_Py_maketrans__doc__
,
"B.maketrans(frm, to) -> translation table\n\
\n\
Return a translation table (a bytes object of length 256) suitable\n\
for use in the bytes or bytearray translate method where each byte\n\
in frm is mapped to the byte at the same position in to.\n\
The bytes objects frm and to must be of the same length."
);
PyObject
*
_Py_bytes_maketrans
(
Py_buffer
*
frm
,
Py_buffer
*
to
)
{
PyObject
*
res
=
NULL
;
Py_ssize_t
i
;
char
*
p
;
if
(
frm
->
len
!=
to
->
len
) {
PyErr_Format
(
PyExc_ValueError
,
"maketrans arguments must have same length"
);
return
NULL
;
}
res
=
PyBytes_FromStringAndSize
(
NULL
,
256
);
if
(!
res
)
return
NULL
;
p
=
PyBytes_AS_STRING
(
res
);
for
(
i
=
0
;
i
<
256
;
i
++
)
p
[
i
]
=
(
char
)
i
;
for
(
i
=
0
;
i
<
frm
->
len
;
i
++
) {
p
[((
unsigned
char
*
)
frm
->
buf
)[
i
]]
=
((
char
*
)
to
->
buf
)[
i
];
}
return
res
;
}
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