Skip Montanaro | a16b21f | 2003-03-23 14:32:54 +0000 | [diff] [blame] | 1 | /* csv module */ |
| 2 | |
| 3 | /* |
| 4 | |
| 5 | This module provides the low-level underpinnings of a CSV reading/writing |
| 6 | module. Users should not use this module directly, but import the csv.py |
| 7 | module instead. |
| 8 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 9 | */ |
| 10 | |
Skip Montanaro | 7b01a83 | 2003-04-12 19:23:46 +0000 | [diff] [blame] | 11 | #define MODULE_VERSION "1.0" |
| 12 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 13 | #include "Python.h" |
| 14 | #include "structmember.h" |
| 15 | |
Andrew McNamara | 37d2bdf | 2005-01-10 12:22:48 +0000 | [diff] [blame] | 16 | #define IS_BASESTRING(o) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 17 | PyUnicode_Check(o) |
Andrew McNamara | 37d2bdf | 2005-01-10 12:22:48 +0000 | [diff] [blame] | 18 | |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 19 | typedef struct { |
| 20 | PyObject *error_obj; /* CSV exception */ |
| 21 | PyObject *dialects; /* Dialect registry */ |
| 22 | long field_limit; /* max parsed field size */ |
| 23 | } _csvstate; |
| 24 | |
| 25 | #define _csvstate(o) ((_csvstate *)PyModule_GetState(o)) |
| 26 | |
| 27 | static int |
| 28 | _csv_clear(PyObject *m) |
| 29 | { |
| 30 | Py_CLEAR(_csvstate(m)->error_obj); |
| 31 | Py_CLEAR(_csvstate(m)->dialects); |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | static int |
| 36 | _csv_traverse(PyObject *m, visitproc visit, void *arg) |
| 37 | { |
| 38 | Py_VISIT(_csvstate(m)->error_obj); |
| 39 | Py_VISIT(_csvstate(m)->dialects); |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | static void |
| 44 | _csv_free(void *m) |
| 45 | { |
| 46 | _csv_clear((PyObject *)m); |
| 47 | } |
| 48 | |
| 49 | static struct PyModuleDef _csvmodule; |
| 50 | |
| 51 | #define _csvstate_global ((_csvstate *)PyModule_GetState(PyState_FindModule(&_csvmodule))) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 52 | |
| 53 | typedef enum { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 54 | START_RECORD, START_FIELD, ESCAPED_CHAR, IN_FIELD, |
| 55 | IN_QUOTED_FIELD, ESCAPE_IN_QUOTED_FIELD, QUOTE_IN_QUOTED_FIELD, |
| 56 | EAT_CRNL |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 57 | } ParserState; |
| 58 | |
| 59 | typedef enum { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 60 | QUOTE_MINIMAL, QUOTE_ALL, QUOTE_NONNUMERIC, QUOTE_NONE |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 61 | } QuoteStyle; |
| 62 | |
| 63 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 64 | QuoteStyle style; |
| 65 | char *name; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 66 | } StyleDesc; |
| 67 | |
| 68 | static StyleDesc quote_styles[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 69 | { QUOTE_MINIMAL, "QUOTE_MINIMAL" }, |
| 70 | { QUOTE_ALL, "QUOTE_ALL" }, |
| 71 | { QUOTE_NONNUMERIC, "QUOTE_NONNUMERIC" }, |
| 72 | { QUOTE_NONE, "QUOTE_NONE" }, |
| 73 | { 0 } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 74 | }; |
| 75 | |
| 76 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 77 | PyObject_HEAD |
Guido van Rossum | 4626458 | 2007-08-06 19:32:18 +0000 | [diff] [blame] | 78 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 79 | int doublequote; /* is " represented by ""? */ |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 80 | Py_UCS4 delimiter; /* field separator */ |
| 81 | Py_UCS4 quotechar; /* quote character */ |
| 82 | Py_UCS4 escapechar; /* escape character */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 83 | int skipinitialspace; /* ignore spaces following delimiter? */ |
| 84 | PyObject *lineterminator; /* string to write between records */ |
| 85 | int quoting; /* style of quoting to write */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 86 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 87 | int strict; /* raise exception on bad CSV */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 88 | } DialectObj; |
| 89 | |
Neal Norwitz | 227b533 | 2006-03-22 09:28:35 +0000 | [diff] [blame] | 90 | static PyTypeObject Dialect_Type; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 91 | |
| 92 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 93 | PyObject_HEAD |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 94 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 95 | PyObject *input_iter; /* iterate over this for input lines */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 96 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 97 | DialectObj *dialect; /* parsing dialect */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 98 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 99 | PyObject *fields; /* field list for current record */ |
| 100 | ParserState state; /* current CSV parse state */ |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 101 | Py_UCS4 *field; /* temporary buffer */ |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 102 | Py_ssize_t field_size; /* size of allocated buffer */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 103 | Py_ssize_t field_len; /* length of current field */ |
| 104 | int numeric_field; /* treat field as numeric */ |
| 105 | unsigned long line_num; /* Source-file line number */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 106 | } ReaderObj; |
| 107 | |
Neal Norwitz | 227b533 | 2006-03-22 09:28:35 +0000 | [diff] [blame] | 108 | static PyTypeObject Reader_Type; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 109 | |
Christian Heimes | 90aa764 | 2007-12-19 02:45:37 +0000 | [diff] [blame] | 110 | #define ReaderObject_Check(v) (Py_TYPE(v) == &Reader_Type) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 111 | |
| 112 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 113 | PyObject_HEAD |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 114 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 115 | PyObject *writeline; /* write output lines to this file */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 116 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 117 | DialectObj *dialect; /* parsing dialect */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 118 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 119 | Py_UCS4 *rec; /* buffer for parser.join */ |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 120 | Py_ssize_t rec_size; /* size of allocated record */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 121 | Py_ssize_t rec_len; /* length of record */ |
| 122 | int num_fields; /* number of fields in record */ |
Guido van Rossum | 4626458 | 2007-08-06 19:32:18 +0000 | [diff] [blame] | 123 | } WriterObj; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 124 | |
Neal Norwitz | 227b533 | 2006-03-22 09:28:35 +0000 | [diff] [blame] | 125 | static PyTypeObject Writer_Type; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 126 | |
| 127 | /* |
| 128 | * DIALECT class |
| 129 | */ |
| 130 | |
| 131 | static PyObject * |
| 132 | get_dialect_from_registry(PyObject * name_obj) |
| 133 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 134 | PyObject *dialect_obj; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 135 | |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 136 | dialect_obj = PyDict_GetItem(_csvstate_global->dialects, name_obj); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 137 | if (dialect_obj == NULL) { |
| 138 | if (!PyErr_Occurred()) |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 139 | PyErr_Format(_csvstate_global->error_obj, "unknown dialect"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 140 | } |
| 141 | else |
| 142 | Py_INCREF(dialect_obj); |
| 143 | return dialect_obj; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 144 | } |
| 145 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 146 | static PyObject * |
| 147 | get_string(PyObject *str) |
| 148 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 149 | Py_XINCREF(str); |
| 150 | return str; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 151 | } |
| 152 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 153 | static PyObject * |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 154 | get_nullchar_as_None(Py_UCS4 c) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 155 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 156 | if (c == '\0') { |
| 157 | Py_INCREF(Py_None); |
| 158 | return Py_None; |
| 159 | } |
| 160 | else |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 161 | return PyUnicode_FromOrdinal(c); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 162 | } |
| 163 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 164 | static PyObject * |
| 165 | Dialect_get_lineterminator(DialectObj *self) |
| 166 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 167 | return get_string(self->lineterminator); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 168 | } |
| 169 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 170 | static PyObject * |
Guido van Rossum | a9769c2 | 2007-08-07 23:59:30 +0000 | [diff] [blame] | 171 | Dialect_get_delimiter(DialectObj *self) |
| 172 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 173 | return get_nullchar_as_None(self->delimiter); |
Guido van Rossum | a9769c2 | 2007-08-07 23:59:30 +0000 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | static PyObject * |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 177 | Dialect_get_escapechar(DialectObj *self) |
| 178 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 179 | return get_nullchar_as_None(self->escapechar); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 182 | static PyObject * |
| 183 | Dialect_get_quotechar(DialectObj *self) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 184 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 185 | return get_nullchar_as_None(self->quotechar); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | static PyObject * |
| 189 | Dialect_get_quoting(DialectObj *self) |
| 190 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 191 | return PyLong_FromLong(self->quoting); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | static int |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 195 | _set_bool(const char *name, int *target, PyObject *src, int dflt) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 196 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 197 | if (src == NULL) |
| 198 | *target = dflt; |
| 199 | else |
| 200 | *target = PyObject_IsTrue(src); |
| 201 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 202 | } |
| 203 | |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 204 | static int |
| 205 | _set_int(const char *name, int *target, PyObject *src, int dflt) |
| 206 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 207 | if (src == NULL) |
| 208 | *target = dflt; |
| 209 | else { |
| 210 | long value; |
| 211 | if (!PyLong_CheckExact(src)) { |
| 212 | PyErr_Format(PyExc_TypeError, |
| 213 | "\"%s\" must be an integer", name); |
| 214 | return -1; |
| 215 | } |
| 216 | value = PyLong_AsLong(src); |
| 217 | if (value == -1 && PyErr_Occurred()) |
| 218 | return -1; |
Martin v. Löwis | d1a1d1e | 2007-12-04 22:10:37 +0000 | [diff] [blame] | 219 | #if SIZEOF_LONG > SIZEOF_INT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 220 | if (value > INT_MAX || value < INT_MIN) { |
| 221 | PyErr_Format(PyExc_ValueError, |
| 222 | "integer out of range for \"%s\"", name); |
| 223 | return -1; |
| 224 | } |
Martin v. Löwis | d1a1d1e | 2007-12-04 22:10:37 +0000 | [diff] [blame] | 225 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 226 | *target = (int)value; |
| 227 | } |
| 228 | return 0; |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | static int |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 232 | _set_char(const char *name, Py_UCS4 *target, PyObject *src, Py_UCS4 dflt) |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 233 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 234 | if (src == NULL) |
| 235 | *target = dflt; |
| 236 | else { |
| 237 | *target = '\0'; |
| 238 | if (src != Py_None) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 239 | Py_ssize_t len; |
Victor Stinner | 9e30aa5 | 2011-11-21 02:49:52 +0100 | [diff] [blame] | 240 | len = PyUnicode_GetLength(src); |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 241 | if (len > 1) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 242 | PyErr_Format(PyExc_TypeError, |
| 243 | "\"%s\" must be an 1-character string", |
| 244 | name); |
| 245 | return -1; |
| 246 | } |
| 247 | if (len > 0) |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 248 | *target = PyUnicode_READ_CHAR(src, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 249 | } |
| 250 | } |
| 251 | return 0; |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | static int |
| 255 | _set_str(const char *name, PyObject **target, PyObject *src, const char *dflt) |
| 256 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 257 | if (src == NULL) |
| 258 | *target = PyUnicode_DecodeASCII(dflt, strlen(dflt), NULL); |
| 259 | else { |
| 260 | if (src == Py_None) |
| 261 | *target = NULL; |
| 262 | else if (!IS_BASESTRING(src)) { |
| 263 | PyErr_Format(PyExc_TypeError, |
| 264 | "\"%s\" must be a string", name); |
| 265 | return -1; |
| 266 | } |
| 267 | else { |
| 268 | Py_XDECREF(*target); |
| 269 | Py_INCREF(src); |
| 270 | *target = src; |
| 271 | } |
| 272 | } |
| 273 | return 0; |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | static int |
| 277 | dialect_check_quoting(int quoting) |
| 278 | { |
Victor Stinner | 4fe519b | 2010-11-09 09:40:16 +0000 | [diff] [blame] | 279 | StyleDesc *qs; |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 280 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 281 | for (qs = quote_styles; qs->name; qs++) { |
| 282 | if (qs->style == quoting) |
| 283 | return 0; |
| 284 | } |
| 285 | PyErr_Format(PyExc_TypeError, "bad \"quoting\" value"); |
| 286 | return -1; |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 287 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 288 | |
| 289 | #define D_OFF(x) offsetof(DialectObj, x) |
| 290 | |
| 291 | static struct PyMemberDef Dialect_memberlist[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 292 | { "skipinitialspace", T_INT, D_OFF(skipinitialspace), READONLY }, |
| 293 | { "doublequote", T_INT, D_OFF(doublequote), READONLY }, |
| 294 | { "strict", T_INT, D_OFF(strict), READONLY }, |
| 295 | { NULL } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 296 | }; |
| 297 | |
| 298 | static PyGetSetDef Dialect_getsetlist[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 299 | { "delimiter", (getter)Dialect_get_delimiter}, |
| 300 | { "escapechar", (getter)Dialect_get_escapechar}, |
| 301 | { "lineterminator", (getter)Dialect_get_lineterminator}, |
| 302 | { "quotechar", (getter)Dialect_get_quotechar}, |
| 303 | { "quoting", (getter)Dialect_get_quoting}, |
| 304 | {NULL}, |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 305 | }; |
| 306 | |
| 307 | static void |
| 308 | Dialect_dealloc(DialectObj *self) |
| 309 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 310 | Py_XDECREF(self->lineterminator); |
| 311 | Py_TYPE(self)->tp_free((PyObject *)self); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 312 | } |
| 313 | |
Martin v. Löwis | 02cbf4a | 2006-02-27 17:20:04 +0000 | [diff] [blame] | 314 | static char *dialect_kws[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 315 | "dialect", |
| 316 | "delimiter", |
| 317 | "doublequote", |
| 318 | "escapechar", |
| 319 | "lineterminator", |
| 320 | "quotechar", |
| 321 | "quoting", |
| 322 | "skipinitialspace", |
| 323 | "strict", |
| 324 | NULL |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 325 | }; |
| 326 | |
Andrew McNamara | 29bf4e4 | 2005-01-11 04:49:53 +0000 | [diff] [blame] | 327 | static PyObject * |
| 328 | dialect_new(PyTypeObject *type, PyObject *args, PyObject *kwargs) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 329 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 330 | DialectObj *self; |
| 331 | PyObject *ret = NULL; |
| 332 | PyObject *dialect = NULL; |
| 333 | PyObject *delimiter = NULL; |
| 334 | PyObject *doublequote = NULL; |
| 335 | PyObject *escapechar = NULL; |
| 336 | PyObject *lineterminator = NULL; |
| 337 | PyObject *quotechar = NULL; |
| 338 | PyObject *quoting = NULL; |
| 339 | PyObject *skipinitialspace = NULL; |
| 340 | PyObject *strict = NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 341 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 342 | if (!PyArg_ParseTupleAndKeywords(args, kwargs, |
| 343 | "|OOOOOOOOO", dialect_kws, |
| 344 | &dialect, |
| 345 | &delimiter, |
| 346 | &doublequote, |
| 347 | &escapechar, |
| 348 | &lineterminator, |
| 349 | "echar, |
| 350 | "ing, |
| 351 | &skipinitialspace, |
| 352 | &strict)) |
| 353 | return NULL; |
Andrew McNamara | 29bf4e4 | 2005-01-11 04:49:53 +0000 | [diff] [blame] | 354 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 355 | if (dialect != NULL) { |
| 356 | if (IS_BASESTRING(dialect)) { |
| 357 | dialect = get_dialect_from_registry(dialect); |
| 358 | if (dialect == NULL) |
| 359 | return NULL; |
| 360 | } |
| 361 | else |
| 362 | Py_INCREF(dialect); |
| 363 | /* Can we reuse this instance? */ |
| 364 | if (PyObject_TypeCheck(dialect, &Dialect_Type) && |
| 365 | delimiter == 0 && |
| 366 | doublequote == 0 && |
| 367 | escapechar == 0 && |
| 368 | lineterminator == 0 && |
| 369 | quotechar == 0 && |
| 370 | quoting == 0 && |
| 371 | skipinitialspace == 0 && |
| 372 | strict == 0) |
| 373 | return dialect; |
| 374 | } |
Andrew McNamara | 29bf4e4 | 2005-01-11 04:49:53 +0000 | [diff] [blame] | 375 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 376 | self = (DialectObj *)type->tp_alloc(type, 0); |
| 377 | if (self == NULL) { |
| 378 | Py_XDECREF(dialect); |
| 379 | return NULL; |
| 380 | } |
| 381 | self->lineterminator = NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 382 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 383 | Py_XINCREF(delimiter); |
| 384 | Py_XINCREF(doublequote); |
| 385 | Py_XINCREF(escapechar); |
| 386 | Py_XINCREF(lineterminator); |
| 387 | Py_XINCREF(quotechar); |
| 388 | Py_XINCREF(quoting); |
| 389 | Py_XINCREF(skipinitialspace); |
| 390 | Py_XINCREF(strict); |
| 391 | if (dialect != NULL) { |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 392 | #define DIALECT_GETATTR(v, n) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 393 | if (v == NULL) \ |
| 394 | v = PyObject_GetAttrString(dialect, n) |
| 395 | DIALECT_GETATTR(delimiter, "delimiter"); |
| 396 | DIALECT_GETATTR(doublequote, "doublequote"); |
| 397 | DIALECT_GETATTR(escapechar, "escapechar"); |
| 398 | DIALECT_GETATTR(lineterminator, "lineterminator"); |
| 399 | DIALECT_GETATTR(quotechar, "quotechar"); |
| 400 | DIALECT_GETATTR(quoting, "quoting"); |
| 401 | DIALECT_GETATTR(skipinitialspace, "skipinitialspace"); |
| 402 | DIALECT_GETATTR(strict, "strict"); |
| 403 | PyErr_Clear(); |
| 404 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 405 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 406 | /* check types and convert to C values */ |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 407 | #define DIASET(meth, name, target, src, dflt) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 408 | if (meth(name, target, src, dflt)) \ |
| 409 | goto err |
| 410 | DIASET(_set_char, "delimiter", &self->delimiter, delimiter, ','); |
| 411 | DIASET(_set_bool, "doublequote", &self->doublequote, doublequote, 1); |
| 412 | DIASET(_set_char, "escapechar", &self->escapechar, escapechar, 0); |
| 413 | DIASET(_set_str, "lineterminator", &self->lineterminator, lineterminator, "\r\n"); |
| 414 | DIASET(_set_char, "quotechar", &self->quotechar, quotechar, '"'); |
| 415 | DIASET(_set_int, "quoting", &self->quoting, quoting, QUOTE_MINIMAL); |
| 416 | DIASET(_set_bool, "skipinitialspace", &self->skipinitialspace, skipinitialspace, 0); |
| 417 | DIASET(_set_bool, "strict", &self->strict, strict, 0); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 418 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 419 | /* validate options */ |
| 420 | if (dialect_check_quoting(self->quoting)) |
| 421 | goto err; |
| 422 | if (self->delimiter == 0) { |
| 423 | PyErr_SetString(PyExc_TypeError, "delimiter must be set"); |
| 424 | goto err; |
| 425 | } |
| 426 | if (quotechar == Py_None && quoting == NULL) |
| 427 | self->quoting = QUOTE_NONE; |
| 428 | if (self->quoting != QUOTE_NONE && self->quotechar == 0) { |
| 429 | PyErr_SetString(PyExc_TypeError, |
| 430 | "quotechar must be set if quoting enabled"); |
| 431 | goto err; |
| 432 | } |
| 433 | if (self->lineterminator == 0) { |
| 434 | PyErr_SetString(PyExc_TypeError, "lineterminator must be set"); |
| 435 | goto err; |
| 436 | } |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 437 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 438 | ret = (PyObject *)self; |
| 439 | Py_INCREF(self); |
Andrew McNamara | 1196cf1 | 2005-01-07 04:42:45 +0000 | [diff] [blame] | 440 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 441 | Py_XDECREF(self); |
| 442 | Py_XDECREF(dialect); |
| 443 | Py_XDECREF(delimiter); |
| 444 | Py_XDECREF(doublequote); |
| 445 | Py_XDECREF(escapechar); |
| 446 | Py_XDECREF(lineterminator); |
| 447 | Py_XDECREF(quotechar); |
| 448 | Py_XDECREF(quoting); |
| 449 | Py_XDECREF(skipinitialspace); |
| 450 | Py_XDECREF(strict); |
| 451 | return ret; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 452 | } |
| 453 | |
| 454 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 455 | PyDoc_STRVAR(Dialect_Type_doc, |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 456 | "CSV dialect\n" |
| 457 | "\n" |
| 458 | "The Dialect type records CSV parsing and generation options.\n"); |
| 459 | |
| 460 | static PyTypeObject Dialect_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 461 | PyVarObject_HEAD_INIT(NULL, 0) |
| 462 | "_csv.Dialect", /* tp_name */ |
| 463 | sizeof(DialectObj), /* tp_basicsize */ |
| 464 | 0, /* tp_itemsize */ |
| 465 | /* methods */ |
| 466 | (destructor)Dialect_dealloc, /* tp_dealloc */ |
| 467 | (printfunc)0, /* tp_print */ |
| 468 | (getattrfunc)0, /* tp_getattr */ |
| 469 | (setattrfunc)0, /* tp_setattr */ |
| 470 | 0, /* tp_reserved */ |
| 471 | (reprfunc)0, /* tp_repr */ |
| 472 | 0, /* tp_as_number */ |
| 473 | 0, /* tp_as_sequence */ |
| 474 | 0, /* tp_as_mapping */ |
| 475 | (hashfunc)0, /* tp_hash */ |
| 476 | (ternaryfunc)0, /* tp_call */ |
| 477 | (reprfunc)0, /* tp_str */ |
| 478 | 0, /* tp_getattro */ |
| 479 | 0, /* tp_setattro */ |
| 480 | 0, /* tp_as_buffer */ |
| 481 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 482 | Dialect_Type_doc, /* tp_doc */ |
| 483 | 0, /* tp_traverse */ |
| 484 | 0, /* tp_clear */ |
| 485 | 0, /* tp_richcompare */ |
| 486 | 0, /* tp_weaklistoffset */ |
| 487 | 0, /* tp_iter */ |
| 488 | 0, /* tp_iternext */ |
| 489 | 0, /* tp_methods */ |
| 490 | Dialect_memberlist, /* tp_members */ |
| 491 | Dialect_getsetlist, /* tp_getset */ |
| 492 | 0, /* tp_base */ |
| 493 | 0, /* tp_dict */ |
| 494 | 0, /* tp_descr_get */ |
| 495 | 0, /* tp_descr_set */ |
| 496 | 0, /* tp_dictoffset */ |
| 497 | 0, /* tp_init */ |
| 498 | 0, /* tp_alloc */ |
| 499 | dialect_new, /* tp_new */ |
| 500 | 0, /* tp_free */ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 501 | }; |
| 502 | |
Andrew McNamara | 91b9746 | 2005-01-11 01:07:23 +0000 | [diff] [blame] | 503 | /* |
| 504 | * Return an instance of the dialect type, given a Python instance or kwarg |
| 505 | * description of the dialect |
| 506 | */ |
| 507 | static PyObject * |
| 508 | _call_dialect(PyObject *dialect_inst, PyObject *kwargs) |
| 509 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 510 | PyObject *ctor_args; |
| 511 | PyObject *dialect; |
Andrew McNamara | 91b9746 | 2005-01-11 01:07:23 +0000 | [diff] [blame] | 512 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 513 | ctor_args = Py_BuildValue(dialect_inst ? "(O)" : "()", dialect_inst); |
| 514 | if (ctor_args == NULL) |
| 515 | return NULL; |
| 516 | dialect = PyObject_Call((PyObject *)&Dialect_Type, ctor_args, kwargs); |
| 517 | Py_DECREF(ctor_args); |
| 518 | return dialect; |
Andrew McNamara | 91b9746 | 2005-01-11 01:07:23 +0000 | [diff] [blame] | 519 | } |
| 520 | |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 521 | /* |
| 522 | * READER |
| 523 | */ |
Andrew McNamara | 0f0599d | 2005-01-12 09:45:18 +0000 | [diff] [blame] | 524 | static int |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 525 | parse_save_field(ReaderObj *self) |
| 526 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 527 | PyObject *field; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 528 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 529 | field = PyUnicode_FromKindAndData(PyUnicode_4BYTE_KIND, |
| 530 | (void *) self->field, self->field_len); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 531 | if (field == NULL) |
| 532 | return -1; |
| 533 | self->field_len = 0; |
| 534 | if (self->numeric_field) { |
| 535 | PyObject *tmp; |
Andrew McNamara | 0f0599d | 2005-01-12 09:45:18 +0000 | [diff] [blame] | 536 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 537 | self->numeric_field = 0; |
| 538 | tmp = PyNumber_Float(field); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 539 | Py_DECREF(field); |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 540 | if (tmp == NULL) |
| 541 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 542 | field = tmp; |
| 543 | } |
| 544 | PyList_Append(self->fields, field); |
| 545 | Py_DECREF(field); |
| 546 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | static int |
| 550 | parse_grow_buff(ReaderObj *self) |
| 551 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 552 | if (self->field_size == 0) { |
| 553 | self->field_size = 4096; |
| 554 | if (self->field != NULL) |
| 555 | PyMem_Free(self->field); |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 556 | self->field = PyMem_New(Py_UCS4, self->field_size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 557 | } |
| 558 | else { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 559 | Py_UCS4 *field = self->field; |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 560 | if (self->field_size > PY_SSIZE_T_MAX / 2) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 561 | PyErr_NoMemory(); |
| 562 | return 0; |
| 563 | } |
| 564 | self->field_size *= 2; |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 565 | self->field = PyMem_Resize(field, Py_UCS4, self->field_size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 566 | } |
| 567 | if (self->field == NULL) { |
| 568 | PyErr_NoMemory(); |
| 569 | return 0; |
| 570 | } |
| 571 | return 1; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 572 | } |
| 573 | |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 574 | static int |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 575 | parse_add_char(ReaderObj *self, Py_UCS4 c) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 576 | { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 577 | if (self->field_len >= _csvstate_global->field_limit) { |
| 578 | PyErr_Format(_csvstate_global->error_obj, "field larger than field limit (%ld)", |
| 579 | _csvstate_global->field_limit); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 580 | return -1; |
| 581 | } |
| 582 | if (self->field_len == self->field_size && !parse_grow_buff(self)) |
| 583 | return -1; |
| 584 | self->field[self->field_len++] = c; |
| 585 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 586 | } |
| 587 | |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 588 | static int |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 589 | parse_process_char(ReaderObj *self, Py_UCS4 c) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 590 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 591 | DialectObj *dialect = self->dialect; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 592 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 593 | switch (self->state) { |
| 594 | case START_RECORD: |
| 595 | /* start of record */ |
| 596 | if (c == '\0') |
| 597 | /* empty line - return [] */ |
| 598 | break; |
| 599 | else if (c == '\n' || c == '\r') { |
| 600 | self->state = EAT_CRNL; |
| 601 | break; |
| 602 | } |
| 603 | /* normal character - handle as START_FIELD */ |
| 604 | self->state = START_FIELD; |
| 605 | /* fallthru */ |
| 606 | case START_FIELD: |
| 607 | /* expecting field */ |
| 608 | if (c == '\n' || c == '\r' || c == '\0') { |
| 609 | /* save empty field - return [fields] */ |
| 610 | if (parse_save_field(self) < 0) |
| 611 | return -1; |
| 612 | self->state = (c == '\0' ? START_RECORD : EAT_CRNL); |
| 613 | } |
| 614 | else if (c == dialect->quotechar && |
| 615 | dialect->quoting != QUOTE_NONE) { |
| 616 | /* start quoted field */ |
| 617 | self->state = IN_QUOTED_FIELD; |
| 618 | } |
| 619 | else if (c == dialect->escapechar) { |
| 620 | /* possible escaped character */ |
| 621 | self->state = ESCAPED_CHAR; |
| 622 | } |
| 623 | else if (c == ' ' && dialect->skipinitialspace) |
| 624 | /* ignore space at start of field */ |
| 625 | ; |
| 626 | else if (c == dialect->delimiter) { |
| 627 | /* save empty field */ |
| 628 | if (parse_save_field(self) < 0) |
| 629 | return -1; |
| 630 | } |
| 631 | else { |
| 632 | /* begin new unquoted field */ |
| 633 | if (dialect->quoting == QUOTE_NONNUMERIC) |
| 634 | self->numeric_field = 1; |
| 635 | if (parse_add_char(self, c) < 0) |
| 636 | return -1; |
| 637 | self->state = IN_FIELD; |
| 638 | } |
| 639 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 640 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 641 | case ESCAPED_CHAR: |
| 642 | if (c == '\0') |
| 643 | c = '\n'; |
| 644 | if (parse_add_char(self, c) < 0) |
| 645 | return -1; |
| 646 | self->state = IN_FIELD; |
| 647 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 648 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 649 | case IN_FIELD: |
| 650 | /* in unquoted field */ |
| 651 | if (c == '\n' || c == '\r' || c == '\0') { |
| 652 | /* end of line - return [fields] */ |
| 653 | if (parse_save_field(self) < 0) |
| 654 | return -1; |
| 655 | self->state = (c == '\0' ? START_RECORD : EAT_CRNL); |
| 656 | } |
| 657 | else if (c == dialect->escapechar) { |
| 658 | /* possible escaped character */ |
| 659 | self->state = ESCAPED_CHAR; |
| 660 | } |
| 661 | else if (c == dialect->delimiter) { |
| 662 | /* save field - wait for new field */ |
| 663 | if (parse_save_field(self) < 0) |
| 664 | return -1; |
| 665 | self->state = START_FIELD; |
| 666 | } |
| 667 | else { |
| 668 | /* normal character - save in field */ |
| 669 | if (parse_add_char(self, c) < 0) |
| 670 | return -1; |
| 671 | } |
| 672 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 673 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 674 | case IN_QUOTED_FIELD: |
| 675 | /* in quoted field */ |
| 676 | if (c == '\0') |
| 677 | ; |
| 678 | else if (c == dialect->escapechar) { |
| 679 | /* Possible escape character */ |
| 680 | self->state = ESCAPE_IN_QUOTED_FIELD; |
| 681 | } |
| 682 | else if (c == dialect->quotechar && |
| 683 | dialect->quoting != QUOTE_NONE) { |
| 684 | if (dialect->doublequote) { |
| 685 | /* doublequote; " represented by "" */ |
| 686 | self->state = QUOTE_IN_QUOTED_FIELD; |
| 687 | } |
| 688 | else { |
| 689 | /* end of quote part of field */ |
| 690 | self->state = IN_FIELD; |
| 691 | } |
| 692 | } |
| 693 | else { |
| 694 | /* normal character - save in field */ |
| 695 | if (parse_add_char(self, c) < 0) |
| 696 | return -1; |
| 697 | } |
| 698 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 699 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 700 | case ESCAPE_IN_QUOTED_FIELD: |
| 701 | if (c == '\0') |
| 702 | c = '\n'; |
| 703 | if (parse_add_char(self, c) < 0) |
| 704 | return -1; |
| 705 | self->state = IN_QUOTED_FIELD; |
| 706 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 707 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 708 | case QUOTE_IN_QUOTED_FIELD: |
| 709 | /* doublequote - seen a quote in an quoted field */ |
| 710 | if (dialect->quoting != QUOTE_NONE && |
| 711 | c == dialect->quotechar) { |
| 712 | /* save "" as " */ |
| 713 | if (parse_add_char(self, c) < 0) |
| 714 | return -1; |
| 715 | self->state = IN_QUOTED_FIELD; |
| 716 | } |
| 717 | else if (c == dialect->delimiter) { |
| 718 | /* save field - wait for new field */ |
| 719 | if (parse_save_field(self) < 0) |
| 720 | return -1; |
| 721 | self->state = START_FIELD; |
| 722 | } |
| 723 | else if (c == '\n' || c == '\r' || c == '\0') { |
| 724 | /* end of line - return [fields] */ |
| 725 | if (parse_save_field(self) < 0) |
| 726 | return -1; |
| 727 | self->state = (c == '\0' ? START_RECORD : EAT_CRNL); |
| 728 | } |
| 729 | else if (!dialect->strict) { |
| 730 | if (parse_add_char(self, c) < 0) |
| 731 | return -1; |
| 732 | self->state = IN_FIELD; |
| 733 | } |
| 734 | else { |
| 735 | /* illegal */ |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 736 | PyErr_Format(_csvstate_global->error_obj, "'%c' expected after '%c'", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 737 | dialect->delimiter, |
| 738 | dialect->quotechar); |
| 739 | return -1; |
| 740 | } |
| 741 | break; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 742 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 743 | case EAT_CRNL: |
| 744 | if (c == '\n' || c == '\r') |
| 745 | ; |
| 746 | else if (c == '\0') |
| 747 | self->state = START_RECORD; |
| 748 | else { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 749 | PyErr_Format(_csvstate_global->error_obj, "new-line character seen in unquoted field - do you need to open the file in universal-newline mode?"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 750 | return -1; |
| 751 | } |
| 752 | break; |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 753 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 754 | } |
| 755 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 756 | } |
| 757 | |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 758 | static int |
| 759 | parse_reset(ReaderObj *self) |
| 760 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 761 | Py_XDECREF(self->fields); |
| 762 | self->fields = PyList_New(0); |
| 763 | if (self->fields == NULL) |
| 764 | return -1; |
| 765 | self->field_len = 0; |
| 766 | self->state = START_RECORD; |
| 767 | self->numeric_field = 0; |
| 768 | return 0; |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 769 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 770 | |
| 771 | static PyObject * |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 772 | Reader_iternext(ReaderObj *self) |
| 773 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 774 | PyObject *fields = NULL; |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 775 | Py_UCS4 c; |
| 776 | Py_ssize_t pos, linelen; |
| 777 | unsigned int kind; |
| 778 | void *data; |
| 779 | PyObject *lineobj; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 780 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 781 | if (parse_reset(self) < 0) |
| 782 | return NULL; |
| 783 | do { |
| 784 | lineobj = PyIter_Next(self->input_iter); |
| 785 | if (lineobj == NULL) { |
| 786 | /* End of input OR exception */ |
| 787 | if (!PyErr_Occurred() && self->field_len != 0) |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 788 | PyErr_Format(_csvstate_global->error_obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 789 | "newline inside string"); |
| 790 | return NULL; |
| 791 | } |
| 792 | if (!PyUnicode_Check(lineobj)) { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 793 | PyErr_Format(_csvstate_global->error_obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 794 | "iterator should return strings, " |
| 795 | "not %.200s " |
| 796 | "(did you open the file in text mode?)", |
| 797 | lineobj->ob_type->tp_name |
| 798 | ); |
| 799 | Py_DECREF(lineobj); |
| 800 | return NULL; |
| 801 | } |
| 802 | ++self->line_num; |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 803 | kind = PyUnicode_KIND(lineobj); |
| 804 | data = PyUnicode_DATA(lineobj); |
| 805 | pos = 0; |
| 806 | linelen = PyUnicode_GET_LENGTH(lineobj); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 807 | while (linelen--) { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 808 | c = PyUnicode_READ(kind, data, pos); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 809 | if (c == '\0') { |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 810 | Py_DECREF(lineobj); |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 811 | PyErr_Format(_csvstate_global->error_obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 812 | "line contains NULL byte"); |
| 813 | goto err; |
| 814 | } |
| 815 | if (parse_process_char(self, c) < 0) { |
| 816 | Py_DECREF(lineobj); |
| 817 | goto err; |
| 818 | } |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 819 | pos++; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 820 | } |
| 821 | Py_DECREF(lineobj); |
| 822 | if (parse_process_char(self, 0) < 0) |
| 823 | goto err; |
| 824 | } while (self->state != START_RECORD); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 825 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 826 | fields = self->fields; |
| 827 | self->fields = NULL; |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 828 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 829 | return fields; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | static void |
| 833 | Reader_dealloc(ReaderObj *self) |
| 834 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 835 | PyObject_GC_UnTrack(self); |
| 836 | Py_XDECREF(self->dialect); |
| 837 | Py_XDECREF(self->input_iter); |
| 838 | Py_XDECREF(self->fields); |
| 839 | if (self->field != NULL) |
| 840 | PyMem_Free(self->field); |
| 841 | PyObject_GC_Del(self); |
Jeremy Hylton | 42a8aed | 2003-04-14 02:20:55 +0000 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | static int |
| 845 | Reader_traverse(ReaderObj *self, visitproc visit, void *arg) |
| 846 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 847 | Py_VISIT(self->dialect); |
| 848 | Py_VISIT(self->input_iter); |
| 849 | Py_VISIT(self->fields); |
| 850 | return 0; |
Jeremy Hylton | 42a8aed | 2003-04-14 02:20:55 +0000 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | static int |
| 854 | Reader_clear(ReaderObj *self) |
| 855 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 856 | Py_CLEAR(self->dialect); |
| 857 | Py_CLEAR(self->input_iter); |
| 858 | Py_CLEAR(self->fields); |
| 859 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 860 | } |
| 861 | |
| 862 | PyDoc_STRVAR(Reader_Type_doc, |
| 863 | "CSV reader\n" |
| 864 | "\n" |
| 865 | "Reader objects are responsible for reading and parsing tabular data\n" |
| 866 | "in CSV format.\n" |
| 867 | ); |
| 868 | |
| 869 | static struct PyMethodDef Reader_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 870 | { NULL, NULL } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 871 | }; |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 872 | #define R_OFF(x) offsetof(ReaderObj, x) |
| 873 | |
| 874 | static struct PyMemberDef Reader_memberlist[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 875 | { "dialect", T_OBJECT, R_OFF(dialect), READONLY }, |
| 876 | { "line_num", T_ULONG, R_OFF(line_num), READONLY }, |
| 877 | { NULL } |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 878 | }; |
| 879 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 880 | |
| 881 | static PyTypeObject Reader_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 882 | PyVarObject_HEAD_INIT(NULL, 0) |
| 883 | "_csv.reader", /*tp_name*/ |
| 884 | sizeof(ReaderObj), /*tp_basicsize*/ |
| 885 | 0, /*tp_itemsize*/ |
| 886 | /* methods */ |
| 887 | (destructor)Reader_dealloc, /*tp_dealloc*/ |
| 888 | (printfunc)0, /*tp_print*/ |
| 889 | (getattrfunc)0, /*tp_getattr*/ |
| 890 | (setattrfunc)0, /*tp_setattr*/ |
| 891 | 0, /*tp_reserved*/ |
| 892 | (reprfunc)0, /*tp_repr*/ |
| 893 | 0, /*tp_as_number*/ |
| 894 | 0, /*tp_as_sequence*/ |
| 895 | 0, /*tp_as_mapping*/ |
| 896 | (hashfunc)0, /*tp_hash*/ |
| 897 | (ternaryfunc)0, /*tp_call*/ |
| 898 | (reprfunc)0, /*tp_str*/ |
| 899 | 0, /*tp_getattro*/ |
| 900 | 0, /*tp_setattro*/ |
| 901 | 0, /*tp_as_buffer*/ |
| 902 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | |
| 903 | Py_TPFLAGS_HAVE_GC, /*tp_flags*/ |
| 904 | Reader_Type_doc, /*tp_doc*/ |
| 905 | (traverseproc)Reader_traverse, /*tp_traverse*/ |
| 906 | (inquiry)Reader_clear, /*tp_clear*/ |
| 907 | 0, /*tp_richcompare*/ |
| 908 | 0, /*tp_weaklistoffset*/ |
| 909 | PyObject_SelfIter, /*tp_iter*/ |
| 910 | (getiterfunc)Reader_iternext, /*tp_iternext*/ |
| 911 | Reader_methods, /*tp_methods*/ |
| 912 | Reader_memberlist, /*tp_members*/ |
| 913 | 0, /*tp_getset*/ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 914 | |
| 915 | }; |
| 916 | |
| 917 | static PyObject * |
| 918 | csv_reader(PyObject *module, PyObject *args, PyObject *keyword_args) |
| 919 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 920 | PyObject * iterator, * dialect = NULL; |
| 921 | ReaderObj * self = PyObject_GC_New(ReaderObj, &Reader_Type); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 922 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 923 | if (!self) |
| 924 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 925 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 926 | self->dialect = NULL; |
| 927 | self->fields = NULL; |
| 928 | self->input_iter = NULL; |
| 929 | self->field = NULL; |
| 930 | self->field_size = 0; |
| 931 | self->line_num = 0; |
Andrew McNamara | 0f0599d | 2005-01-12 09:45:18 +0000 | [diff] [blame] | 932 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 933 | if (parse_reset(self) < 0) { |
| 934 | Py_DECREF(self); |
| 935 | return NULL; |
| 936 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 937 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 938 | if (!PyArg_UnpackTuple(args, "", 1, 2, &iterator, &dialect)) { |
| 939 | Py_DECREF(self); |
| 940 | return NULL; |
| 941 | } |
| 942 | self->input_iter = PyObject_GetIter(iterator); |
| 943 | if (self->input_iter == NULL) { |
| 944 | PyErr_SetString(PyExc_TypeError, |
| 945 | "argument 1 must be an iterator"); |
| 946 | Py_DECREF(self); |
| 947 | return NULL; |
| 948 | } |
| 949 | self->dialect = (DialectObj *)_call_dialect(dialect, keyword_args); |
| 950 | if (self->dialect == NULL) { |
| 951 | Py_DECREF(self); |
| 952 | return NULL; |
| 953 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 954 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 955 | PyObject_GC_Track(self); |
| 956 | return (PyObject *)self; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 957 | } |
| 958 | |
| 959 | /* |
| 960 | * WRITER |
| 961 | */ |
| 962 | /* ---------------------------------------------------------------- */ |
| 963 | static void |
| 964 | join_reset(WriterObj *self) |
| 965 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 966 | self->rec_len = 0; |
| 967 | self->num_fields = 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 968 | } |
| 969 | |
| 970 | #define MEM_INCR 32768 |
| 971 | |
| 972 | /* Calculate new record length or append field to record. Return new |
| 973 | * record length. |
| 974 | */ |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 975 | static Py_ssize_t |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 976 | join_append_data(WriterObj *self, unsigned int field_kind, void *field_data, |
| 977 | Py_ssize_t field_len, int quote_empty, int *quoted, |
| 978 | int copy_phase) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 979 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 980 | DialectObj *dialect = self->dialect; |
| 981 | int i; |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 982 | Py_ssize_t rec_len; |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 983 | |
| 984 | #define ADDCH(c) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 985 | do {\ |
| 986 | if (copy_phase) \ |
| 987 | self->rec[rec_len] = c;\ |
| 988 | rec_len++;\ |
| 989 | } while(0) |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 990 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 991 | rec_len = self->rec_len; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 992 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 993 | /* If this is not the first field we need a field separator */ |
| 994 | if (self->num_fields > 0) |
| 995 | ADDCH(dialect->delimiter); |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 996 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 997 | /* Handle preceding quote */ |
| 998 | if (copy_phase && *quoted) |
| 999 | ADDCH(dialect->quotechar); |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 1000 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1001 | /* Copy/count field data */ |
| 1002 | /* If field is null just pass over */ |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1003 | for (i = 0; field_data && (i < field_len); i++) { |
| 1004 | Py_UCS4 c = PyUnicode_READ(field_kind, field_data, i); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1005 | int want_escape = 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1006 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1007 | if (c == dialect->delimiter || |
| 1008 | c == dialect->escapechar || |
| 1009 | c == dialect->quotechar || |
Martin v. Löwis | 5f4f4c5 | 2011-11-01 18:42:23 +0100 | [diff] [blame] | 1010 | PyUnicode_FindChar( |
| 1011 | dialect->lineterminator, c, 0, |
| 1012 | PyUnicode_GET_LENGTH(dialect->lineterminator), 1) >= 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1013 | if (dialect->quoting == QUOTE_NONE) |
| 1014 | want_escape = 1; |
| 1015 | else { |
| 1016 | if (c == dialect->quotechar) { |
| 1017 | if (dialect->doublequote) |
| 1018 | ADDCH(dialect->quotechar); |
| 1019 | else |
| 1020 | want_escape = 1; |
| 1021 | } |
| 1022 | if (!want_escape) |
| 1023 | *quoted = 1; |
| 1024 | } |
| 1025 | if (want_escape) { |
| 1026 | if (!dialect->escapechar) { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1027 | PyErr_Format(_csvstate_global->error_obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1028 | "need to escape, but no escapechar set"); |
| 1029 | return -1; |
| 1030 | } |
| 1031 | ADDCH(dialect->escapechar); |
| 1032 | } |
| 1033 | } |
| 1034 | /* Copy field character into record buffer. |
| 1035 | */ |
| 1036 | ADDCH(c); |
| 1037 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1038 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1039 | /* If field is empty check if it needs to be quoted. |
| 1040 | */ |
| 1041 | if (i == 0 && quote_empty) { |
| 1042 | if (dialect->quoting == QUOTE_NONE) { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1043 | PyErr_Format(_csvstate_global->error_obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1044 | "single empty field record must be quoted"); |
| 1045 | return -1; |
| 1046 | } |
| 1047 | else |
| 1048 | *quoted = 1; |
| 1049 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1050 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1051 | if (*quoted) { |
| 1052 | if (copy_phase) |
| 1053 | ADDCH(dialect->quotechar); |
| 1054 | else |
| 1055 | rec_len += 2; |
| 1056 | } |
| 1057 | return rec_len; |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 1058 | #undef ADDCH |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1059 | } |
| 1060 | |
| 1061 | static int |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 1062 | join_check_rec_size(WriterObj *self, Py_ssize_t rec_len) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1063 | { |
Amaury Forgeot d'Arc | 9c74b14 | 2008-06-18 00:47:36 +0000 | [diff] [blame] | 1064 | |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 1065 | if (rec_len < 0 || rec_len > PY_SSIZE_T_MAX - MEM_INCR) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1066 | PyErr_NoMemory(); |
| 1067 | return 0; |
| 1068 | } |
Amaury Forgeot d'Arc | 9c74b14 | 2008-06-18 00:47:36 +0000 | [diff] [blame] | 1069 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1070 | if (rec_len > self->rec_size) { |
| 1071 | if (self->rec_size == 0) { |
| 1072 | self->rec_size = (rec_len / MEM_INCR + 1) * MEM_INCR; |
| 1073 | if (self->rec != NULL) |
| 1074 | PyMem_Free(self->rec); |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1075 | self->rec = PyMem_New(Py_UCS4, self->rec_size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1076 | } |
| 1077 | else { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1078 | Py_UCS4* old_rec = self->rec; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1079 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1080 | self->rec_size = (rec_len / MEM_INCR + 1) * MEM_INCR; |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1081 | self->rec = PyMem_Resize(old_rec, Py_UCS4, self->rec_size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1082 | if (self->rec == NULL) |
| 1083 | PyMem_Free(old_rec); |
| 1084 | } |
| 1085 | if (self->rec == NULL) { |
| 1086 | PyErr_NoMemory(); |
| 1087 | return 0; |
| 1088 | } |
| 1089 | } |
| 1090 | return 1; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1091 | } |
| 1092 | |
| 1093 | static int |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1094 | join_append(WriterObj *self, PyObject *field, int *quoted, int quote_empty) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1095 | { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1096 | unsigned int field_kind = -1; |
| 1097 | void *field_data = NULL; |
| 1098 | Py_ssize_t field_len = 0; |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 1099 | Py_ssize_t rec_len; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1100 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1101 | if (field != NULL) { |
| 1102 | field_kind = PyUnicode_KIND(field); |
| 1103 | field_data = PyUnicode_DATA(field); |
| 1104 | field_len = PyUnicode_GET_LENGTH(field); |
| 1105 | } |
| 1106 | rec_len = join_append_data(self, field_kind, field_data, field_len, |
| 1107 | quote_empty, quoted, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1108 | if (rec_len < 0) |
| 1109 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1110 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1111 | /* grow record buffer if necessary */ |
| 1112 | if (!join_check_rec_size(self, rec_len)) |
| 1113 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1114 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1115 | self->rec_len = join_append_data(self, field_kind, field_data, field_len, |
| 1116 | quote_empty, quoted, 1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1117 | self->num_fields++; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1118 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1119 | return 1; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1120 | } |
| 1121 | |
| 1122 | static int |
| 1123 | join_append_lineterminator(WriterObj *self) |
| 1124 | { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1125 | Py_ssize_t terminator_len, i; |
| 1126 | unsigned int term_kind; |
| 1127 | void *term_data; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1128 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1129 | terminator_len = PyUnicode_GET_LENGTH(self->dialect->lineterminator); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1130 | if (terminator_len == -1) |
| 1131 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1132 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1133 | /* grow record buffer if necessary */ |
| 1134 | if (!join_check_rec_size(self, self->rec_len + terminator_len)) |
| 1135 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1136 | |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1137 | term_kind = PyUnicode_KIND(self->dialect->lineterminator); |
| 1138 | term_data = PyUnicode_DATA(self->dialect->lineterminator); |
| 1139 | for (i = 0; i < terminator_len; i++) |
| 1140 | self->rec[self->rec_len + i] = PyUnicode_READ(term_kind, term_data, i); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1141 | self->rec_len += terminator_len; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1142 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1143 | return 1; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1144 | } |
| 1145 | |
| 1146 | PyDoc_STRVAR(csv_writerow_doc, |
Skip Montanaro | 860fc0b | 2003-04-12 18:57:52 +0000 | [diff] [blame] | 1147 | "writerow(sequence)\n" |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1148 | "\n" |
Skip Montanaro | 860fc0b | 2003-04-12 18:57:52 +0000 | [diff] [blame] | 1149 | "Construct and write a CSV record from a sequence of fields. Non-string\n" |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1150 | "elements will be converted to string."); |
| 1151 | |
| 1152 | static PyObject * |
| 1153 | csv_writerow(WriterObj *self, PyObject *seq) |
| 1154 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1155 | DialectObj *dialect = self->dialect; |
Antoine Pitrou | 4045575 | 2010-08-15 18:51:10 +0000 | [diff] [blame] | 1156 | Py_ssize_t len, i; |
Antoine Pitrou | 72ca65d | 2011-10-07 04:35:30 +0200 | [diff] [blame] | 1157 | PyObject *line, *result; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1158 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1159 | if (!PySequence_Check(seq)) |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1160 | return PyErr_Format(_csvstate_global->error_obj, "sequence expected"); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1161 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1162 | len = PySequence_Length(seq); |
| 1163 | if (len < 0) |
| 1164 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1165 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1166 | /* Join all fields in internal buffer. |
| 1167 | */ |
| 1168 | join_reset(self); |
| 1169 | for (i = 0; i < len; i++) { |
| 1170 | PyObject *field; |
| 1171 | int append_ok; |
| 1172 | int quoted; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1173 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1174 | field = PySequence_GetItem(seq, i); |
| 1175 | if (field == NULL) |
| 1176 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1177 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1178 | switch (dialect->quoting) { |
| 1179 | case QUOTE_NONNUMERIC: |
| 1180 | quoted = !PyNumber_Check(field); |
| 1181 | break; |
| 1182 | case QUOTE_ALL: |
| 1183 | quoted = 1; |
| 1184 | break; |
| 1185 | default: |
| 1186 | quoted = 0; |
| 1187 | break; |
| 1188 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1189 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1190 | if (PyUnicode_Check(field)) { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1191 | append_ok = join_append(self, field, "ed, len == 1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1192 | Py_DECREF(field); |
| 1193 | } |
| 1194 | else if (field == Py_None) { |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1195 | append_ok = join_append(self, NULL, "ed, len == 1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1196 | Py_DECREF(field); |
| 1197 | } |
| 1198 | else { |
| 1199 | PyObject *str; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1200 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1201 | str = PyObject_Str(field); |
| 1202 | Py_DECREF(field); |
| 1203 | if (str == NULL) |
| 1204 | return NULL; |
Antoine Pitrou | 77ea640 | 2011-10-07 04:26:55 +0200 | [diff] [blame] | 1205 | append_ok = join_append(self, str, "ed, len == 1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1206 | Py_DECREF(str); |
| 1207 | } |
| 1208 | if (!append_ok) |
| 1209 | return NULL; |
| 1210 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1211 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1212 | /* Add line terminator. |
| 1213 | */ |
| 1214 | if (!join_append_lineterminator(self)) |
| 1215 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1216 | |
Antoine Pitrou | 72ca65d | 2011-10-07 04:35:30 +0200 | [diff] [blame] | 1217 | line = PyUnicode_FromKindAndData(PyUnicode_4BYTE_KIND, |
| 1218 | (void *) self->rec, self->rec_len); |
| 1219 | if (line == NULL) |
| 1220 | return NULL; |
| 1221 | result = PyObject_CallFunctionObjArgs(self->writeline, line, NULL); |
| 1222 | Py_DECREF(line); |
| 1223 | return result; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1224 | } |
| 1225 | |
Skip Montanaro | 860fc0b | 2003-04-12 18:57:52 +0000 | [diff] [blame] | 1226 | PyDoc_STRVAR(csv_writerows_doc, |
| 1227 | "writerows(sequence of sequences)\n" |
| 1228 | "\n" |
| 1229 | "Construct and write a series of sequences to a csv file. Non-string\n" |
| 1230 | "elements will be converted to string."); |
| 1231 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1232 | static PyObject * |
| 1233 | csv_writerows(WriterObj *self, PyObject *seqseq) |
| 1234 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1235 | PyObject *row_iter, *row_obj, *result; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1236 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1237 | row_iter = PyObject_GetIter(seqseq); |
| 1238 | if (row_iter == NULL) { |
| 1239 | PyErr_SetString(PyExc_TypeError, |
| 1240 | "writerows() argument must be iterable"); |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | while ((row_obj = PyIter_Next(row_iter))) { |
| 1244 | result = csv_writerow(self, row_obj); |
| 1245 | Py_DECREF(row_obj); |
| 1246 | if (!result) { |
| 1247 | Py_DECREF(row_iter); |
| 1248 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1249 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1250 | else |
| 1251 | Py_DECREF(result); |
| 1252 | } |
| 1253 | Py_DECREF(row_iter); |
| 1254 | if (PyErr_Occurred()) |
| 1255 | return NULL; |
| 1256 | Py_INCREF(Py_None); |
| 1257 | return Py_None; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1258 | } |
| 1259 | |
| 1260 | static struct PyMethodDef Writer_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1261 | { "writerow", (PyCFunction)csv_writerow, METH_O, csv_writerow_doc}, |
| 1262 | { "writerows", (PyCFunction)csv_writerows, METH_O, csv_writerows_doc}, |
| 1263 | { NULL, NULL } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1264 | }; |
| 1265 | |
| 1266 | #define W_OFF(x) offsetof(WriterObj, x) |
| 1267 | |
| 1268 | static struct PyMemberDef Writer_memberlist[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1269 | { "dialect", T_OBJECT, W_OFF(dialect), READONLY }, |
| 1270 | { NULL } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1271 | }; |
| 1272 | |
| 1273 | static void |
| 1274 | Writer_dealloc(WriterObj *self) |
| 1275 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1276 | PyObject_GC_UnTrack(self); |
| 1277 | Py_XDECREF(self->dialect); |
| 1278 | Py_XDECREF(self->writeline); |
| 1279 | if (self->rec != NULL) |
| 1280 | PyMem_Free(self->rec); |
| 1281 | PyObject_GC_Del(self); |
Jeremy Hylton | 42a8aed | 2003-04-14 02:20:55 +0000 | [diff] [blame] | 1282 | } |
| 1283 | |
| 1284 | static int |
| 1285 | Writer_traverse(WriterObj *self, visitproc visit, void *arg) |
| 1286 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1287 | Py_VISIT(self->dialect); |
| 1288 | Py_VISIT(self->writeline); |
| 1289 | return 0; |
Jeremy Hylton | 42a8aed | 2003-04-14 02:20:55 +0000 | [diff] [blame] | 1290 | } |
| 1291 | |
| 1292 | static int |
| 1293 | Writer_clear(WriterObj *self) |
| 1294 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1295 | Py_CLEAR(self->dialect); |
| 1296 | Py_CLEAR(self->writeline); |
| 1297 | return 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1298 | } |
| 1299 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1300 | PyDoc_STRVAR(Writer_Type_doc, |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1301 | "CSV writer\n" |
| 1302 | "\n" |
| 1303 | "Writer objects are responsible for generating tabular data\n" |
| 1304 | "in CSV format from sequence input.\n" |
| 1305 | ); |
| 1306 | |
| 1307 | static PyTypeObject Writer_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1308 | PyVarObject_HEAD_INIT(NULL, 0) |
| 1309 | "_csv.writer", /*tp_name*/ |
| 1310 | sizeof(WriterObj), /*tp_basicsize*/ |
| 1311 | 0, /*tp_itemsize*/ |
| 1312 | /* methods */ |
| 1313 | (destructor)Writer_dealloc, /*tp_dealloc*/ |
| 1314 | (printfunc)0, /*tp_print*/ |
| 1315 | (getattrfunc)0, /*tp_getattr*/ |
| 1316 | (setattrfunc)0, /*tp_setattr*/ |
| 1317 | 0, /*tp_reserved*/ |
| 1318 | (reprfunc)0, /*tp_repr*/ |
| 1319 | 0, /*tp_as_number*/ |
| 1320 | 0, /*tp_as_sequence*/ |
| 1321 | 0, /*tp_as_mapping*/ |
| 1322 | (hashfunc)0, /*tp_hash*/ |
| 1323 | (ternaryfunc)0, /*tp_call*/ |
| 1324 | (reprfunc)0, /*tp_str*/ |
| 1325 | 0, /*tp_getattro*/ |
| 1326 | 0, /*tp_setattro*/ |
| 1327 | 0, /*tp_as_buffer*/ |
| 1328 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | |
| 1329 | Py_TPFLAGS_HAVE_GC, /*tp_flags*/ |
| 1330 | Writer_Type_doc, |
| 1331 | (traverseproc)Writer_traverse, /*tp_traverse*/ |
| 1332 | (inquiry)Writer_clear, /*tp_clear*/ |
| 1333 | 0, /*tp_richcompare*/ |
| 1334 | 0, /*tp_weaklistoffset*/ |
| 1335 | (getiterfunc)0, /*tp_iter*/ |
| 1336 | (getiterfunc)0, /*tp_iternext*/ |
| 1337 | Writer_methods, /*tp_methods*/ |
| 1338 | Writer_memberlist, /*tp_members*/ |
| 1339 | 0, /*tp_getset*/ |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1340 | }; |
| 1341 | |
| 1342 | static PyObject * |
| 1343 | csv_writer(PyObject *module, PyObject *args, PyObject *keyword_args) |
| 1344 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1345 | PyObject * output_file, * dialect = NULL; |
| 1346 | WriterObj * self = PyObject_GC_New(WriterObj, &Writer_Type); |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1347 | _Py_IDENTIFIER(write); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1348 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1349 | if (!self) |
| 1350 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1351 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1352 | self->dialect = NULL; |
| 1353 | self->writeline = NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1354 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1355 | self->rec = NULL; |
| 1356 | self->rec_size = 0; |
| 1357 | self->rec_len = 0; |
| 1358 | self->num_fields = 0; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1359 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1360 | if (!PyArg_UnpackTuple(args, "", 1, 2, &output_file, &dialect)) { |
| 1361 | Py_DECREF(self); |
| 1362 | return NULL; |
| 1363 | } |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 1364 | self->writeline = _PyObject_GetAttrId(output_file, &PyId_write); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1365 | if (self->writeline == NULL || !PyCallable_Check(self->writeline)) { |
| 1366 | PyErr_SetString(PyExc_TypeError, |
| 1367 | "argument 1 must have a \"write\" method"); |
| 1368 | Py_DECREF(self); |
| 1369 | return NULL; |
| 1370 | } |
| 1371 | self->dialect = (DialectObj *)_call_dialect(dialect, keyword_args); |
| 1372 | if (self->dialect == NULL) { |
| 1373 | Py_DECREF(self); |
| 1374 | return NULL; |
| 1375 | } |
| 1376 | PyObject_GC_Track(self); |
| 1377 | return (PyObject *)self; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | /* |
| 1381 | * DIALECT REGISTRY |
| 1382 | */ |
| 1383 | static PyObject * |
| 1384 | csv_list_dialects(PyObject *module, PyObject *args) |
| 1385 | { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1386 | return PyDict_Keys(_csvstate_global->dialects); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1387 | } |
| 1388 | |
| 1389 | static PyObject * |
Andrew McNamara | 8662597 | 2005-01-11 01:28:33 +0000 | [diff] [blame] | 1390 | csv_register_dialect(PyObject *module, PyObject *args, PyObject *kwargs) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1391 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1392 | PyObject *name_obj, *dialect_obj = NULL; |
| 1393 | PyObject *dialect; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1394 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1395 | if (!PyArg_UnpackTuple(args, "", 1, 2, &name_obj, &dialect_obj)) |
| 1396 | return NULL; |
| 1397 | if (!IS_BASESTRING(name_obj)) { |
| 1398 | PyErr_SetString(PyExc_TypeError, |
| 1399 | "dialect name must be a string or unicode"); |
| 1400 | return NULL; |
| 1401 | } |
| 1402 | dialect = _call_dialect(dialect_obj, kwargs); |
| 1403 | if (dialect == NULL) |
| 1404 | return NULL; |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1405 | if (PyDict_SetItem(_csvstate_global->dialects, name_obj, dialect) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1406 | Py_DECREF(dialect); |
| 1407 | return NULL; |
| 1408 | } |
| 1409 | Py_DECREF(dialect); |
| 1410 | Py_INCREF(Py_None); |
| 1411 | return Py_None; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1412 | } |
| 1413 | |
| 1414 | static PyObject * |
Skip Montanaro | 577c7a7 | 2003-04-12 19:17:14 +0000 | [diff] [blame] | 1415 | csv_unregister_dialect(PyObject *module, PyObject *name_obj) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1416 | { |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1417 | if (PyDict_DelItem(_csvstate_global->dialects, name_obj) < 0) |
| 1418 | return PyErr_Format(_csvstate_global->error_obj, "unknown dialect"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1419 | Py_INCREF(Py_None); |
| 1420 | return Py_None; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1421 | } |
| 1422 | |
| 1423 | static PyObject * |
Skip Montanaro | 577c7a7 | 2003-04-12 19:17:14 +0000 | [diff] [blame] | 1424 | csv_get_dialect(PyObject *module, PyObject *name_obj) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1425 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1426 | return get_dialect_from_registry(name_obj); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1427 | } |
| 1428 | |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1429 | static PyObject * |
Andrew McNamara | 31d8896 | 2005-01-12 03:45:10 +0000 | [diff] [blame] | 1430 | csv_field_size_limit(PyObject *module, PyObject *args) |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1431 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1432 | PyObject *new_limit = NULL; |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1433 | long old_limit = _csvstate_global->field_limit; |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1434 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1435 | if (!PyArg_UnpackTuple(args, "field_size_limit", 0, 1, &new_limit)) |
| 1436 | return NULL; |
| 1437 | if (new_limit != NULL) { |
| 1438 | if (!PyLong_CheckExact(new_limit)) { |
| 1439 | PyErr_Format(PyExc_TypeError, |
| 1440 | "limit must be an integer"); |
| 1441 | return NULL; |
| 1442 | } |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1443 | _csvstate_global->field_limit = PyLong_AsLong(new_limit); |
| 1444 | if (_csvstate_global->field_limit == -1 && PyErr_Occurred()) { |
| 1445 | _csvstate_global->field_limit = old_limit; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1446 | return NULL; |
| 1447 | } |
| 1448 | } |
| 1449 | return PyLong_FromLong(old_limit); |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1450 | } |
| 1451 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1452 | /* |
| 1453 | * MODULE |
| 1454 | */ |
| 1455 | |
| 1456 | PyDoc_STRVAR(csv_module_doc, |
| 1457 | "CSV parsing and writing.\n" |
| 1458 | "\n" |
| 1459 | "This module provides classes that assist in the reading and writing\n" |
| 1460 | "of Comma Separated Value (CSV) files, and implements the interface\n" |
| 1461 | "described by PEP 305. Although many CSV files are simple to parse,\n" |
| 1462 | "the format is not formally defined by a stable specification and\n" |
| 1463 | "is subtle enough that parsing lines of a CSV file with something\n" |
| 1464 | "like line.split(\",\") is bound to fail. The module supports three\n" |
| 1465 | "basic APIs: reading, writing, and registration of dialects.\n" |
| 1466 | "\n" |
| 1467 | "\n" |
| 1468 | "DIALECT REGISTRATION:\n" |
| 1469 | "\n" |
| 1470 | "Readers and writers support a dialect argument, which is a convenient\n" |
| 1471 | "handle on a group of settings. When the dialect argument is a string,\n" |
| 1472 | "it identifies one of the dialects previously registered with the module.\n" |
| 1473 | "If it is a class or instance, the attributes of the argument are used as\n" |
| 1474 | "the settings for the reader or writer:\n" |
| 1475 | "\n" |
| 1476 | " class excel:\n" |
| 1477 | " delimiter = ','\n" |
| 1478 | " quotechar = '\"'\n" |
| 1479 | " escapechar = None\n" |
| 1480 | " doublequote = True\n" |
| 1481 | " skipinitialspace = False\n" |
Johannes Gijsbers | 8d3b9dd | 2004-08-15 12:23:10 +0000 | [diff] [blame] | 1482 | " lineterminator = '\\r\\n'\n" |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1483 | " quoting = QUOTE_MINIMAL\n" |
| 1484 | "\n" |
| 1485 | "SETTINGS:\n" |
| 1486 | "\n" |
| 1487 | " * quotechar - specifies a one-character string to use as the \n" |
| 1488 | " quoting character. It defaults to '\"'.\n" |
| 1489 | " * delimiter - specifies a one-character string to use as the \n" |
| 1490 | " field separator. It defaults to ','.\n" |
| 1491 | " * skipinitialspace - specifies how to interpret whitespace which\n" |
| 1492 | " immediately follows a delimiter. It defaults to False, which\n" |
| 1493 | " means that whitespace immediately following a delimiter is part\n" |
| 1494 | " of the following field.\n" |
| 1495 | " * lineterminator - specifies the character sequence which should \n" |
| 1496 | " terminate rows.\n" |
| 1497 | " * quoting - controls when quotes should be generated by the writer.\n" |
| 1498 | " It can take on any of the following module constants:\n" |
| 1499 | "\n" |
| 1500 | " csv.QUOTE_MINIMAL means only when required, for example, when a\n" |
| 1501 | " field contains either the quotechar or the delimiter\n" |
| 1502 | " csv.QUOTE_ALL means that quotes are always placed around fields.\n" |
| 1503 | " csv.QUOTE_NONNUMERIC means that quotes are always placed around\n" |
Skip Montanaro | 148eb6a | 2003-12-02 18:57:47 +0000 | [diff] [blame] | 1504 | " fields which do not parse as integers or floating point\n" |
| 1505 | " numbers.\n" |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1506 | " csv.QUOTE_NONE means that quotes are never placed around fields.\n" |
| 1507 | " * escapechar - specifies a one-character string used to escape \n" |
| 1508 | " the delimiter when quoting is set to QUOTE_NONE.\n" |
| 1509 | " * doublequote - controls the handling of quotes inside fields. When\n" |
| 1510 | " True, two consecutive quotes are interpreted as one during read,\n" |
| 1511 | " and when writing, each quote character embedded in the data is\n" |
| 1512 | " written as two quotes\n"); |
| 1513 | |
| 1514 | PyDoc_STRVAR(csv_reader_doc, |
| 1515 | " csv_reader = reader(iterable [, dialect='excel']\n" |
| 1516 | " [optional keyword args])\n" |
| 1517 | " for row in csv_reader:\n" |
| 1518 | " process(row)\n" |
| 1519 | "\n" |
| 1520 | "The \"iterable\" argument can be any object that returns a line\n" |
| 1521 | "of input for each iteration, such as a file object or a list. The\n" |
| 1522 | "optional \"dialect\" parameter is discussed below. The function\n" |
| 1523 | "also accepts optional keyword arguments which override settings\n" |
| 1524 | "provided by the dialect.\n" |
| 1525 | "\n" |
| 1526 | "The returned object is an iterator. Each iteration returns a row\n" |
Johannes Gijsbers | 8d3b9dd | 2004-08-15 12:23:10 +0000 | [diff] [blame] | 1527 | "of the CSV file (which can span multiple input lines):\n"); |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1528 | |
| 1529 | PyDoc_STRVAR(csv_writer_doc, |
| 1530 | " csv_writer = csv.writer(fileobj [, dialect='excel']\n" |
| 1531 | " [optional keyword args])\n" |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1532 | " for row in sequence:\n" |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1533 | " csv_writer.writerow(row)\n" |
| 1534 | "\n" |
| 1535 | " [or]\n" |
| 1536 | "\n" |
| 1537 | " csv_writer = csv.writer(fileobj [, dialect='excel']\n" |
| 1538 | " [optional keyword args])\n" |
| 1539 | " csv_writer.writerows(rows)\n" |
| 1540 | "\n" |
| 1541 | "The \"fileobj\" argument can be any object that supports the file API.\n"); |
| 1542 | |
| 1543 | PyDoc_STRVAR(csv_list_dialects_doc, |
| 1544 | "Return a list of all know dialect names.\n" |
| 1545 | " names = csv.list_dialects()"); |
| 1546 | |
| 1547 | PyDoc_STRVAR(csv_get_dialect_doc, |
| 1548 | "Return the dialect instance associated with name.\n" |
| 1549 | " dialect = csv.get_dialect(name)"); |
| 1550 | |
| 1551 | PyDoc_STRVAR(csv_register_dialect_doc, |
| 1552 | "Create a mapping from a string name to a dialect class.\n" |
| 1553 | " dialect = csv.register_dialect(name, dialect)"); |
| 1554 | |
| 1555 | PyDoc_STRVAR(csv_unregister_dialect_doc, |
| 1556 | "Delete the name/dialect mapping associated with a string name.\n" |
| 1557 | " csv.unregister_dialect(name)"); |
| 1558 | |
Andrew McNamara | 31d8896 | 2005-01-12 03:45:10 +0000 | [diff] [blame] | 1559 | PyDoc_STRVAR(csv_field_size_limit_doc, |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1560 | "Sets an upper limit on parsed fields.\n" |
Andrew McNamara | 31d8896 | 2005-01-12 03:45:10 +0000 | [diff] [blame] | 1561 | " csv.field_size_limit([limit])\n" |
Andrew McNamara | e4d05c4 | 2005-01-11 07:32:02 +0000 | [diff] [blame] | 1562 | "\n" |
| 1563 | "Returns old limit. If limit is not given, no new limit is set and\n" |
| 1564 | "the old limit is returned"); |
| 1565 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1566 | static struct PyMethodDef csv_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1567 | { "reader", (PyCFunction)csv_reader, |
| 1568 | METH_VARARGS | METH_KEYWORDS, csv_reader_doc}, |
| 1569 | { "writer", (PyCFunction)csv_writer, |
| 1570 | METH_VARARGS | METH_KEYWORDS, csv_writer_doc}, |
| 1571 | { "list_dialects", (PyCFunction)csv_list_dialects, |
| 1572 | METH_NOARGS, csv_list_dialects_doc}, |
| 1573 | { "register_dialect", (PyCFunction)csv_register_dialect, |
| 1574 | METH_VARARGS | METH_KEYWORDS, csv_register_dialect_doc}, |
| 1575 | { "unregister_dialect", (PyCFunction)csv_unregister_dialect, |
| 1576 | METH_O, csv_unregister_dialect_doc}, |
| 1577 | { "get_dialect", (PyCFunction)csv_get_dialect, |
| 1578 | METH_O, csv_get_dialect_doc}, |
| 1579 | { "field_size_limit", (PyCFunction)csv_field_size_limit, |
| 1580 | METH_VARARGS, csv_field_size_limit_doc}, |
| 1581 | { NULL, NULL } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1582 | }; |
| 1583 | |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 1584 | static struct PyModuleDef _csvmodule = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1585 | PyModuleDef_HEAD_INIT, |
| 1586 | "_csv", |
| 1587 | csv_module_doc, |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1588 | sizeof(_csvstate), |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1589 | csv_methods, |
| 1590 | NULL, |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1591 | _csv_traverse, |
| 1592 | _csv_clear, |
| 1593 | _csv_free |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 1594 | }; |
| 1595 | |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1596 | PyMODINIT_FUNC |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 1597 | PyInit__csv(void) |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1598 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1599 | PyObject *module; |
| 1600 | StyleDesc *style; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1601 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1602 | if (PyType_Ready(&Dialect_Type) < 0) |
| 1603 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1604 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1605 | if (PyType_Ready(&Reader_Type) < 0) |
| 1606 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1607 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1608 | if (PyType_Ready(&Writer_Type) < 0) |
| 1609 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1610 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1611 | /* Create the module and add the functions */ |
| 1612 | module = PyModule_Create(&_csvmodule); |
| 1613 | if (module == NULL) |
| 1614 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1615 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1616 | /* Add version to the module. */ |
| 1617 | if (PyModule_AddStringConstant(module, "__version__", |
| 1618 | MODULE_VERSION) == -1) |
| 1619 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1620 | |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1621 | /* Set the field limit */ |
| 1622 | _csvstate(module)->field_limit = 128 * 1024; |
| 1623 | /* Do I still need to add this var to the Module Dict? */ |
| 1624 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1625 | /* Add _dialects dictionary */ |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1626 | _csvstate(module)->dialects = PyDict_New(); |
| 1627 | if (_csvstate(module)->dialects == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1628 | return NULL; |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1629 | Py_INCREF(_csvstate(module)->dialects); |
| 1630 | if (PyModule_AddObject(module, "_dialects", _csvstate(module)->dialects)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1631 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1632 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1633 | /* Add quote styles into dictionary */ |
| 1634 | for (style = quote_styles; style->name; style++) { |
| 1635 | if (PyModule_AddIntConstant(module, style->name, |
| 1636 | style->style) == -1) |
| 1637 | return NULL; |
| 1638 | } |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1639 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1640 | /* Add the Dialect type */ |
| 1641 | Py_INCREF(&Dialect_Type); |
| 1642 | if (PyModule_AddObject(module, "Dialect", (PyObject *)&Dialect_Type)) |
| 1643 | return NULL; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1644 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1645 | /* Add the CSV exception object to the module. */ |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1646 | _csvstate(module)->error_obj = PyErr_NewException("_csv.Error", NULL, NULL); |
| 1647 | if (_csvstate(module)->error_obj == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1648 | return NULL; |
Antoine Pitrou | e7672d3 | 2012-05-16 11:33:08 +0200 | [diff] [blame^] | 1649 | Py_INCREF(_csvstate(module)->error_obj); |
| 1650 | PyModule_AddObject(module, "Error", _csvstate(module)->error_obj); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1651 | return module; |
Skip Montanaro | b4a0417 | 2003-03-20 23:29:12 +0000 | [diff] [blame] | 1652 | } |