FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
cpython/Objects/stringlib/transmogrify.h at 3.5 · python/cpython · GitHub
python
cpython
Repository navigation
Code
Issues
5k+
(5k+)
Pull requests
2.4k
(2.4k)
Actions
Projects
Security and quality
Insights
Expand file tree
Breadcrumbs
cpython
/
Objects
/
stringlib
/
transmogrify.h
Copy path
More file actions
More file actions
Latest commit
History
History
History
266 lines (224 loc) · 7.01 KB
Breadcrumbs
cpython
/
Objects
/
stringlib
/
transmogrify.h
Copy path
File metadata and controls
266 lines (224 loc) · 7.01 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
/* NOTE: this API is -ONLY- for use with single byte character strings. */
/* Do not use it with Unicode. */
/* the more complicated methods. parts of these should be pulled out into the
shared code in bytes_methods.c to cut down on duplicate code bloat. */
PyDoc_STRVAR
(
expandtabs__doc__
,
"B.expandtabs(tabsize=8) -> copy of B\n\
\n\
Return a copy of B where all tab characters are expanded using spaces.\n\
If tabsize is not given, a tab size of 8 characters is assumed."
);
static
PyObject
*
stringlib_expandtabs
(
PyObject
*
self
,
PyObject
*
args
,
PyObject
*
kwds
)
{
const
char
*
e
,
*
p
;
char
*
q
;
Py_ssize_t
i
,
j
;
PyObject
*
u
;
static
char
*
kwlist
[]
=
{
"tabsize"
,
0
};
int
tabsize
=
8
;
if
(!
PyArg_ParseTupleAndKeywords
(
args
,
kwds
,
"|i:expandtabs"
,
kwlist
,
&
tabsize
))
return
NULL
;
/* First pass: determine size of output string */
i
=
j
=
0
;
e
=
STRINGLIB_STR
(
self
)
+
STRINGLIB_LEN
(
self
);
for
(
p
=
STRINGLIB_STR
(
self
);
p
<
e
;
p
++
) {
if
(
*
p
==
'\t'
) {
if
(
tabsize
>
0
) {
Py_ssize_t
incr
=
tabsize
-
(
j
%
tabsize
);
if
(
j
>
PY_SSIZE_T_MAX
-
incr
)
goto
overflow
;
j
+=
incr
;
}
}
else
{
if
(
j
>
PY_SSIZE_T_MAX
-
1
)
goto
overflow
;
j
++
;
if
(
*
p
==
'\n'
||
*
p
==
'\r'
) {
if
(
i
>
PY_SSIZE_T_MAX
-
j
)
goto
overflow
;
i
+=
j
;
j
=
0
;
}
}
}
if
(
i
>
PY_SSIZE_T_MAX
-
j
)
goto
overflow
;
/* Second pass: create output string and fill it */
u
=
STRINGLIB_NEW
(
NULL
,
i
+
j
);
if
(!
u
)
return
NULL
;
j
=
0
;
q
=
STRINGLIB_STR
(
u
);
for
(
p
=
STRINGLIB_STR
(
self
);
p
<
e
;
p
++
) {
if
(
*
p
==
'\t'
) {
if
(
tabsize
>
0
) {
i
=
tabsize
-
(
j
%
tabsize
);
j
+=
i
;
while
(
i
--
)
*
q
++
=
' '
;
}
}
else
{
j
++
;
*
q
++
=
*
p
;
if
(
*
p
==
'\n'
||
*
p
==
'\r'
)
j
=
0
;
}
}
return
u
;
overflow
:
PyErr_SetString
(
PyExc_OverflowError
,
"result too long"
);
return
NULL
;
}
Py_LOCAL_INLINE
(
PyObject
*
)
pad
(
PyObject
*
self
,
Py_ssize_t
left
,
Py_ssize_t
right
,
char
fill
)
{
PyObject
*
u
;
if
(
left
<
0
)
left
=
0
;
if
(
right
<
0
)
right
=
0
;
if
(
left
==
0
&&
right
==
0
&&
STRINGLIB_CHECK_EXACT
(
self
)) {
#if
STRINGLIB_MUTABLE
/* We're defined as returning a copy; If the object is mutable
* that means we must make an identical copy. */
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
#else
Py_INCREF
(
self
);
return
(
PyObject
*
)
self
;
#endif
/* STRINGLIB_MUTABLE */
}
u
=
STRINGLIB_NEW
(
NULL
,
left
+
STRINGLIB_LEN
(
self
)
+
right
);
if
(
u
) {
if
(
left
)
memset
(
STRINGLIB_STR
(
u
),
fill
,
left
);
Py_MEMCPY
(
STRINGLIB_STR
(
u
)
+
left
,
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
if
(
right
)
memset
(
STRINGLIB_STR
(
u
)
+
left
+
STRINGLIB_LEN
(
self
),
fill
,
right
);
}
return
u
;
}
PyDoc_STRVAR
(
ljust__doc__
,
"B.ljust(width[, fillchar]) -> copy of B\n"
"\n"
"Return B left justified in a string of length width. Padding is\n"
"done using the specified fill character (default is a space)."
);
static
PyObject
*
stringlib_ljust
(
PyObject
*
self
,
PyObject
*
args
)
{
Py_ssize_t
width
;
char
fillchar
=
' '
;
if
(!
PyArg_ParseTuple
(
args
,
"n|c:ljust"
,
&
width
,
&
fillchar
))
return
NULL
;
if
(
STRINGLIB_LEN
(
self
) >=
width
&&
STRINGLIB_CHECK_EXACT
(
self
)) {
#if
STRINGLIB_MUTABLE
/* We're defined as returning a copy; If the object is mutable
* that means we must make an identical copy. */
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
#else
Py_INCREF
(
self
);
return
(
PyObject
*
)
self
;
#endif
}
return
pad
(
self
,
0
,
width
-
STRINGLIB_LEN
(
self
),
fillchar
);
}
PyDoc_STRVAR
(
rjust__doc__
,
"B.rjust(width[, fillchar]) -> copy of B\n"
"\n"
"Return B right justified in a string of length width. Padding is\n"
"done using the specified fill character (default is a space)"
);
static
PyObject
*
stringlib_rjust
(
PyObject
*
self
,
PyObject
*
args
)
{
Py_ssize_t
width
;
char
fillchar
=
' '
;
if
(!
PyArg_ParseTuple
(
args
,
"n|c:rjust"
,
&
width
,
&
fillchar
))
return
NULL
;
if
(
STRINGLIB_LEN
(
self
) >=
width
&&
STRINGLIB_CHECK_EXACT
(
self
)) {
#if
STRINGLIB_MUTABLE
/* We're defined as returning a copy; If the object is mutable
* that means we must make an identical copy. */
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
#else
Py_INCREF
(
self
);
return
(
PyObject
*
)
self
;
#endif
}
return
pad
(
self
,
width
-
STRINGLIB_LEN
(
self
),
0
,
fillchar
);
}
PyDoc_STRVAR
(
center__doc__
,
"B.center(width[, fillchar]) -> copy of B\n"
"\n"
"Return B centered in a string of length width. Padding is\n"
"done using the specified fill character (default is a space)."
);
static
PyObject
*
stringlib_center
(
PyObject
*
self
,
PyObject
*
args
)
{
Py_ssize_t
marg
,
left
;
Py_ssize_t
width
;
char
fillchar
=
' '
;
if
(!
PyArg_ParseTuple
(
args
,
"n|c:center"
,
&
width
,
&
fillchar
))
return
NULL
;
if
(
STRINGLIB_LEN
(
self
) >=
width
&&
STRINGLIB_CHECK_EXACT
(
self
)) {
#if
STRINGLIB_MUTABLE
/* We're defined as returning a copy; If the object is mutable
* that means we must make an identical copy. */
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
#else
Py_INCREF
(
self
);
return
(
PyObject
*
)
self
;
#endif
}
marg
=
width
-
STRINGLIB_LEN
(
self
);
left
=
marg
/
2
+
(
marg
&
width
&
1
);
return
pad
(
self
,
left
,
marg
-
left
,
fillchar
);
}
PyDoc_STRVAR
(
zfill__doc__
,
"B.zfill(width) -> copy of B\n"
"\n"
"Pad a numeric string B with zeros on the left, to fill a field\n"
"of the specified width. B is never truncated."
);
static
PyObject
*
stringlib_zfill
(
PyObject
*
self
,
PyObject
*
args
)
{
Py_ssize_t
fill
;
PyObject
*
s
;
char
*
p
;
Py_ssize_t
width
;
if
(!
PyArg_ParseTuple
(
args
,
"n:zfill"
,
&
width
))
return
NULL
;
if
(
STRINGLIB_LEN
(
self
) >=
width
) {
if
(
STRINGLIB_CHECK_EXACT
(
self
)) {
#if
STRINGLIB_MUTABLE
/* We're defined as returning a copy; If the object is mutable
* that means we must make an identical copy. */
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
));
#else
Py_INCREF
(
self
);
return
(
PyObject
*
)
self
;
#endif
}
else
return
STRINGLIB_NEW
(
STRINGLIB_STR
(
self
),
STRINGLIB_LEN
(
self
)
);
}
fill
=
width
-
STRINGLIB_LEN
(
self
);
s
=
pad
(
self
,
fill
,
0
,
'0'
);
if
(
s
==
NULL
)
return
NULL
;
p
=
STRINGLIB_STR
(
s
);
if
(
p
[
fill
]
==
'+'
||
p
[
fill
]
==
'-'
) {
/* move sign to beginning of string */
p
[
0
]
=
p
[
fill
];
p
[
fill
]
=
'0'
;
}
return
(
PyObject
*
)
s
;
}
Back
|
FazBrowse Home
|
New Git URL