Mercurial > cpython-lru_cache-weakref
annotate Modules/cStringIO.c @ 16798:258dcafe2d0b legacy-trunk
Gustavo Niemeyer <niemeyer@conectiva.com>:
Fixed recno support (keys are integers rather than strings).
Work around DB bug that cause stdin to be closed by rnopen() when the
DB file needed to exist but did not (no longer segfaults).
This closes SF tracker patch #403445.
Also wrapped some long lines and added whitespace around operators -- FLD.
| author | Fred Drake <fdrake@acm.org> |
|---|---|
| date | Tue, 27 Feb 2001 18:56:46 +0000 |
| parents | 60a2e99c863b |
| children | 104b5c9b88ea |
| rev | line source |
|---|---|
| 4598 | 1 /* |
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2 * cStringIO.c,v 1.29 1999/06/15 14:10:27 jim Exp |
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3 * |
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4 * Copyright (c) 1996-1998, Digital Creations, Fredericksburg, VA, USA. |
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5 * All rights reserved. |
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6 * |
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7 * Redistribution and use in source and binary forms, with or without |
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8 * modification, are permitted provided that the following conditions are |
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9 * met: |
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10 * |
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11 * o Redistributions of source code must retain the above copyright |
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12 * notice, this list of conditions, and the disclaimer that follows. |
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13 * |
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14 * o Redistributions in binary form must reproduce the above copyright |
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15 * notice, this list of conditions, and the following disclaimer in |
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16 * the documentation and/or other materials provided with the |
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17 * distribution. |
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18 * |
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19 * o All advertising materials mentioning features or use of this |
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20 * software must display the following acknowledgement: |
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21 * |
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22 * This product includes software developed by Digital Creations |
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23 * and its contributors. |
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24 * |
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25 * o Neither the name of Digital Creations nor the names of its |
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26 * contributors may be used to endorse or promote products derived |
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27 * from this software without specific prior written permission. |
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28 * |
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29 * |
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30 * THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS AND CONTRIBUTORS *AS |
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31 * IS* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A |
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33 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL |
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34 * CREATIONS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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35 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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36 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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37 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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38 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
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39 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
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40 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
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41 * DAMAGE. |
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42 * |
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43 # |
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44 # If you have questions regarding this software, contact: |
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45 # |
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46 # Digital Creations, L.C. |
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47 # 910 Princess Ann Street |
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48 # Fredericksburge, Virginia 22401 |
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49 # |
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50 # info@digicool.com |
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51 # |
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52 # (540) 371-6909 |
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53 */ |
| 4598 | 54 static char cStringIO_module_documentation[] = |
| 55 "A simple fast partial StringIO replacement.\n" | |
| 56 "\n" | |
| 57 "This module provides a simple useful replacement for\n" | |
| 58 "the StringIO module that is written in C. It does not provide the\n" | |
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59 "full generality of StringIO, but it provides enough for most\n" |
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60 "applications and is especially useful in conjunction with the\n" |
| 4598 | 61 "pickle module.\n" |
| 62 "\n" | |
| 63 "Usage:\n" | |
| 64 "\n" | |
| 65 " from cStringIO import StringIO\n" | |
| 66 "\n" | |
| 67 " an_output_stream=StringIO()\n" | |
| 68 " an_output_stream.write(some_stuff)\n" | |
| 69 " ...\n" | |
| 70 " value=an_output_stream.getvalue() # str(an_output_stream) works too!\n" | |
| 71 "\n" | |
| 72 " an_input_stream=StringIO(a_string)\n" | |
| 73 " spam=an_input_stream.readline()\n" | |
| 74 " spam=an_input_stream.read(5)\n" | |
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75 " an_input_stream.seek(0) # OK, start over\n" |
| 4598 | 76 " spam=an_input_stream.read() # and read it all\n" |
| 77 " \n" | |
| 78 "If someone else wants to provide a more complete implementation,\n" | |
| 79 "go for it. :-) \n" | |
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80 "\n" |
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81 "cStringIO.c,v 1.29 1999/06/15 14:10:27 jim Exp\n" |
| 4598 | 82 ; |
| 83 | |
| 84 #include "Python.h" | |
| 85 #include "import.h" | |
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86 #include "cStringIO.h" |
| 4598 | 87 |
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88 #define UNLESS(E) if (!(E)) |
| 4598 | 89 |
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90 |
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91 /* Declaration for file-like objects that manage data as strings |
| 4598 | 92 |
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93 The IOobject type should be though of as a common base type for |
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94 Iobjects, which provide input (read-only) StringIO objects and |
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95 Oobjects, which provide read-write objects. Most of the methods |
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96 depend only on common data. |
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97 */ |
| 4598 | 98 |
| 99 typedef struct { | |
| 100 PyObject_HEAD | |
| 101 char *buf; | |
| 9642 | 102 int pos, string_size; |
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103 } IOobject; |
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104 |
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105 #define IOOOBJECT(O) ((IOobject*)(O)) |
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106 |
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107 /* Declarations for objects of type StringO */ |
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108 |
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109 typedef struct { /* Subtype of IOobject */ |
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110 PyObject_HEAD |
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111 char *buf; |
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112 int pos, string_size; |
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113 |
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114 int buf_size, softspace; |
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115 } Oobject; |
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116 |
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117 /* Declarations for objects of type StringI */ |
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118 |
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119 typedef struct { /* Subtype of IOobject */ |
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120 PyObject_HEAD |
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121 char *buf; |
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122 int pos, string_size; |
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123 |
| 4598 | 124 PyObject *pbuf; |
| 125 } Iobject; | |
| 126 | |
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127 /* IOobject (common) methods */ |
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128 |
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129 static char IO_flush__doc__[] = "flush(): does nothing."; |
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130 |
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131 static int |
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132 IO__opencheck(IOobject *self) { |
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133 UNLESS (self->buf) { |
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134 PyErr_SetString(PyExc_ValueError, |
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135 "I/O operation on closed file"); |
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136 return 0; |
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137 } |
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138 return 1; |
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139 } |
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140 |
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141 static PyObject * |
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142 IO_flush(IOobject *self, PyObject *args) { |
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143 |
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144 UNLESS (IO__opencheck(self)) return NULL; |
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145 UNLESS (PyArg_ParseTuple(args, ":flush")) return NULL; |
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146 |
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147 Py_INCREF(Py_None); |
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148 return Py_None; |
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149 } |
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150 |
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151 static char IO_getval__doc__[] = |
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152 "getvalue([use_pos]) -- Get the string value." |
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153 "\n" |
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154 "If use_pos is specified and is a true value, then the string returned\n" |
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155 "will include only the text up to the current file position.\n" |
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156 ; |
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157 |
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158 static PyObject * |
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159 IO_cgetval(PyObject *self) { |
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160 UNLESS (IO__opencheck(IOOOBJECT(self))) return NULL; |
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161 return PyString_FromStringAndSize(((IOobject*)self)->buf, |
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162 ((IOobject*)self)->pos); |
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163 } |
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164 |
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165 static PyObject * |
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166 IO_getval(IOobject *self, PyObject *args) { |
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167 PyObject *use_pos=Py_None; |
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168 int s; |
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169 |
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170 UNLESS (IO__opencheck(self)) return NULL; |
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171 UNLESS (PyArg_ParseTuple(args,"|O:getval",&use_pos)) return NULL; |
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172 |
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173 if (PyObject_IsTrue(use_pos)) { |
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174 s=self->pos; |
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175 if (s > self->string_size) s=self->string_size; |
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176 } |
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177 else |
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178 s=self->string_size; |
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179 return PyString_FromStringAndSize(self->buf, s); |
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180 } |
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181 |
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182 static char IO_isatty__doc__[] = "isatty(): always returns 0"; |
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183 |
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184 static PyObject * |
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185 IO_isatty(IOobject *self, PyObject *args) { |
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186 |
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187 UNLESS (PyArg_ParseTuple(args, ":isatty")) return NULL; |
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188 |
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189 return PyInt_FromLong(0); |
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190 } |
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191 |
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192 static char IO_read__doc__[] = |
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193 "read([s]) -- Read s characters, or the rest of the string" |
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194 ; |
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195 |
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196 static int |
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197 IO_cread(PyObject *self, char **output, int n) { |
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198 int l; |
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199 |
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200 UNLESS (IO__opencheck(IOOOBJECT(self))) return -1; |
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201 l = ((IOobject*)self)->string_size - ((IOobject*)self)->pos; |
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202 if (n < 0 || n > l) { |
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203 n = l; |
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204 if (n < 0) n=0; |
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205 } |
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206 |
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207 *output=((IOobject*)self)->buf + ((IOobject*)self)->pos; |
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208 ((IOobject*)self)->pos += n; |
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209 return n; |
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210 } |
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211 |
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212 static PyObject * |
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213 IO_read(IOobject *self, PyObject *args) { |
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214 int n = -1; |
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215 char *output; |
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216 |
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217 UNLESS (PyArg_ParseTuple(args, "|i:read", &n)) return NULL; |
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218 |
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219 if ( (n=IO_cread((PyObject*)self,&output,n)) < 0) return NULL; |
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220 |
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221 return PyString_FromStringAndSize(output, n); |
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222 } |
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223 |
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224 static char IO_readline__doc__[] = |
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225 "readline() -- Read one line" |
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226 ; |
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227 |
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228 static int |
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229 IO_creadline(PyObject *self, char **output) { |
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230 char *n, *s; |
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231 int l; |
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232 |
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233 UNLESS (IO__opencheck(IOOOBJECT(self))) return -1; |
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234 |
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235 for (n = ((IOobject*)self)->buf + ((IOobject*)self)->pos, |
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236 s = ((IOobject*)self)->buf + ((IOobject*)self)->string_size; |
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237 n < s && *n != '\n'; n++); |
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238 if (n < s) n++; |
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239 |
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240 *output=((IOobject*)self)->buf + ((IOobject*)self)->pos; |
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241 l = n - ((IOobject*)self)->buf - ((IOobject*)self)->pos; |
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242 ((IOobject*)self)->pos += l; |
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243 return l; |
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244 } |
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245 |
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246 static PyObject * |
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247 IO_readline(IOobject *self, PyObject *args) { |
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248 int n, m=-1; |
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249 char *output; |
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250 |
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251 UNLESS (PyArg_ParseTuple(args, "|i:readline", &m)) return NULL; |
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252 |
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253 if( (n=IO_creadline((PyObject*)self,&output)) < 0) return NULL; |
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254 if (m >= 0 && m < n) { |
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|
255 m = n - m; |
|
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|
256 n -= m; |
|
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|
257 self->pos -= m; |
|
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|
258 } |
|
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|
259 return PyString_FromStringAndSize(output, n); |
|
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|
260 } |
|
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|
261 |
|
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|
262 static char IO_readlines__doc__[] = |
|
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|
263 "readlines() -- Read all lines" |
|
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|
264 ; |
|
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265 |
|
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|
266 static PyObject * |
|
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|
267 IO_readlines(IOobject *self, PyObject *args) { |
|
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|
268 int n; |
|
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|
269 char *output; |
|
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|
270 PyObject *result, *line; |
|
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|
271 int hint = 0, length = 0; |
|
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272 |
|
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273 UNLESS (PyArg_ParseTuple(args, "|i:readlines", &hint)) return NULL; |
|
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274 |
|
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275 result = PyList_New(0); |
|
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|
276 if (!result) |
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277 return NULL; |
|
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278 |
|
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279 while (1){ |
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280 if ( (n = IO_creadline((PyObject*)self,&output)) < 0) |
|
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|
281 goto err; |
|
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|
282 if (n == 0) |
|
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|
283 break; |
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284 line = PyString_FromStringAndSize (output, n); |
|
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|
285 if (!line) |
|
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286 goto err; |
|
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|
287 PyList_Append (result, line); |
|
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|
288 Py_DECREF (line); |
|
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|
289 length += n; |
|
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Added a new "base" type, IOobject for which most of the
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|
290 if (hint > 0 && length >= hint) |
|
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Added a new "base" type, IOobject for which most of the
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|
291 break; |
|
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|
292 } |
|
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|
293 return result; |
|
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Added a new "base" type, IOobject for which most of the
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|
294 err: |
|
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|
295 Py_DECREF(result); |
|
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|
296 return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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|
297 } |
|
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|
298 |
|
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|
299 static char IO_reset__doc__[] = |
| 4598 | 300 "reset() -- Reset the file position to the beginning" |
| 301 ; | |
| 302 | |
| 303 static PyObject * | |
|
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|
304 IO_reset(IOobject *self, PyObject *args) { |
|
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Added a new "base" type, IOobject for which most of the
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|
305 |
|
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|
306 UNLESS (IO__opencheck(self)) return NULL; |
|
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|
307 UNLESS (PyArg_ParseTuple(args, ":reset")) return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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|
308 |
|
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|
309 self->pos = 0; |
|
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Added a new "base" type, IOobject for which most of the
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310 |
|
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|
311 Py_INCREF(Py_None); |
|
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|
312 return Py_None; |
|
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Added a new "base" type, IOobject for which most of the
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|
313 } |
|
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Added a new "base" type, IOobject for which most of the
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314 |
|
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|
315 static char IO_tell__doc__[] = |
|
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|
316 "tell() -- get the current position."; |
|
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Added a new "base" type, IOobject for which most of the
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|
317 |
|
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changeset
|
318 static PyObject * |
|
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Added a new "base" type, IOobject for which most of the
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|
319 IO_tell(IOobject *self, PyObject *args) { |
| 4598 | 320 |
|
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Added a new "base" type, IOobject for which most of the
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|
321 UNLESS (IO__opencheck(self)) return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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|
322 UNLESS (PyArg_ParseTuple(args, ":tell")) return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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|
323 |
|
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Added a new "base" type, IOobject for which most of the
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|
324 return PyInt_FromLong(self->pos); |
|
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Added a new "base" type, IOobject for which most of the
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|
325 } |
|
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Added a new "base" type, IOobject for which most of the
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|
326 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
327 static char IO_truncate__doc__[] = |
|
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Added a new "base" type, IOobject for which most of the
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diff
changeset
|
328 "truncate(): truncate the file at the current position."; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
329 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
330 static PyObject * |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
331 IO_truncate(IOobject *self, PyObject *args) { |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
332 int pos = -1; |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
333 |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
334 UNLESS (IO__opencheck(self)) return NULL; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
335 UNLESS (PyArg_ParseTuple(args, "|i:truncate", &pos)) return NULL; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
336 if (pos < 0) pos = self->pos; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
337 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
338 if (self->string_size > pos) self->string_size = pos; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
339 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
340 Py_INCREF(Py_None); |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
341 return Py_None; |
| 4598 | 342 } |
| 343 | |
| 344 | |
|
15059
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
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|
345 |
| 4598 | 346 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
347 /* Read-write object methods */ |
| 4598 | 348 |
| 349 static char O_seek__doc__[] = | |
| 350 "seek(position) -- set the current position\n" | |
| 351 "seek(position, mode) -- mode 0: absolute; 1: relative; 2: relative to EOF"; | |
| 352 | |
| 353 static PyObject * | |
|
5280
e8f8cf358054
Unknown changes by Jim Fulton.
Guido van Rossum <guido@python.org>
parents:
4957
diff
changeset
|
354 O_seek(Oobject *self, PyObject *args) { |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
355 int position, mode = 0; |
| 4598 | 356 |
|
15059
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
357 UNLESS (IO__opencheck(IOOOBJECT(self))) return NULL; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
358 UNLESS (PyArg_ParseTuple(args, "i|i:seek", &position, &mode)) |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
359 return NULL; |
| 4598 | 360 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
361 if (mode == 2) { |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
362 position += self->string_size; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
363 } |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
364 else if (mode == 1) { |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
365 position += self->pos; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
366 } |
| 4598 | 367 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
368 if (position > self->buf_size) { |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
369 self->buf_size*=2; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
370 if (self->buf_size <= position) self->buf_size=position+1; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
371 UNLESS (self->buf=(char*) |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
372 realloc(self->buf,self->buf_size*sizeof(char))) { |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
373 self->buf_size=self->pos=0; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
374 return PyErr_NoMemory(); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
375 } |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
376 } |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
377 else if (position < 0) position=0; |
| 4598 | 378 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
379 self->pos=position; |
|
14679
08823099ae62
Implement readlines function. Closes Bug #110686.
Martin v. Löwis <martin@v.loewis.de>
parents:
13817
diff
changeset
|
380 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
381 while (--position >= self->string_size) self->buf[position]=0; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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382 |
|
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|
383 Py_INCREF(Py_None); |
|
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parents:
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diff
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|
384 return Py_None; |
|
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08823099ae62
Implement readlines function. Closes Bug #110686.
Martin v. Löwis <martin@v.loewis.de>
parents:
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diff
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|
385 } |
|
08823099ae62
Implement readlines function. Closes Bug #110686.
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parents:
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|
386 |
| 4598 | 387 static char O_write__doc__[] = |
| 388 "write(s) -- Write a string to the file" | |
| 389 "\n\nNote (hack:) writing None resets the buffer" | |
| 390 ; | |
| 391 | |
| 392 | |
| 393 static int | |
|
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|
394 O_cwrite(PyObject *self, char *c, int l) { |
|
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|
395 int newl; |
|
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Added a new "base" type, IOobject for which most of the
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|
396 |
|
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|
397 UNLESS (IO__opencheck(IOOOBJECT(self))) return -1; |
| 4906 | 398 |
|
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Added a new "base" type, IOobject for which most of the
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|
399 newl=((Oobject*)self)->pos+l; |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
400 if (newl >= ((Oobject*)self)->buf_size) { |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
401 ((Oobject*)self)->buf_size*=2; |
|
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Added a new "base" type, IOobject for which most of the
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|
402 if (((Oobject*)self)->buf_size <= newl) |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
403 ((Oobject*)self)->buf_size=newl+1; |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
404 UNLESS (((Oobject*)self)->buf= |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
405 (char*)realloc( |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
406 ((Oobject*)self)->buf, |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
407 (((Oobject*)self)->buf_size) *sizeof(char))) { |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
408 PyErr_SetString(PyExc_MemoryError,"out of memory"); |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
409 ((Oobject*)self)->buf_size=((Oobject*)self)->pos=0; |
|
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Added a new "base" type, IOobject for which most of the
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|
410 return -1; |
|
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Added a new "base" type, IOobject for which most of the
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|
411 } |
|
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Added a new "base" type, IOobject for which most of the
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|
412 } |
| 4598 | 413 |
|
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Added a new "base" type, IOobject for which most of the
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414 memcpy(((Oobject*)((Oobject*)self))->buf+((Oobject*)self)->pos,c,l); |
| 4598 | 415 |
|
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Added a new "base" type, IOobject for which most of the
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416 ((Oobject*)self)->pos += l; |
| 4598 | 417 |
|
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Added a new "base" type, IOobject for which most of the
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418 if (((Oobject*)self)->string_size < ((Oobject*)self)->pos) { |
|
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changeset
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419 ((Oobject*)self)->string_size = ((Oobject*)self)->pos; |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
420 } |
| 4598 | 421 |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
422 return l; |
| 4598 | 423 } |
| 424 | |
| 425 static PyObject * | |
|
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parents:
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|
426 O_write(Oobject *self, PyObject *args) { |
|
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parents:
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changeset
|
427 PyObject *s; |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
428 char *c; |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
429 int l; |
| 4598 | 430 |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
431 UNLESS (PyArg_ParseTuple(args, "O:write", &s)) return NULL; |
|
5991
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cPickle release 0.3 from Jim Fulton
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|
432 |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
433 UNLESS (-1 != (l=PyString_Size(s))) return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
434 UNLESS (c=PyString_AsString(s)) return NULL; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
435 if (O_cwrite((PyObject*)self,c,l) < 0) return NULL; |
| 4598 | 436 |
|
15059
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
437 Py_INCREF(Py_None); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
438 return Py_None; |
| 4598 | 439 } |
| 440 | |
| 441 static char O_close__doc__[] = "close(): explicitly release resources held."; | |
| 442 | |
| 443 static PyObject * | |
|
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|
444 O_close(Oobject *self, PyObject *args) { |
| 4598 | 445 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
446 UNLESS (PyArg_ParseTuple(args, ":close")) return NULL; |
| 4598 | 447 |
|
15059
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
448 if (self->buf != NULL) free(self->buf); |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
449 self->buf = NULL; |
| 4598 | 450 |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
451 self->pos = self->string_size = self->buf_size = 0; |
| 4598 | 452 |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
453 Py_INCREF(Py_None); |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
454 return Py_None; |
| 4598 | 455 } |
| 456 | |
| 457 | |
|
10119
a63c9c3e9ecc
The writelines() function was never tested and contained numerous bugs
Guido van Rossum <guido@python.org>
parents:
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|
458 static char O_writelines__doc__[] = |
|
a63c9c3e9ecc
The writelines() function was never tested and contained numerous bugs
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parents:
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|
459 "writelines(sequence_of_strings): write each string"; |
| 4598 | 460 static PyObject * |
|
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|
461 O_writelines(Oobject *self, PyObject *args) { |
|
15059
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Added a new "base" type, IOobject for which most of the
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changeset
|
462 PyObject *tmp = 0; |
|
16546
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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changeset
|
463 static PyObject *joiner = NULL; |
| 4598 | 464 |
|
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changeset
|
465 UNLESS (PyArg_ParseTuple(args, "O:writelines", &args)) return NULL; |
| 4598 | 466 |
|
16546
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In O_writelines: Replace use of string.joinfields with "".join.
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parents:
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changeset
|
467 if (!joiner) { |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
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parents:
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diff
changeset
|
468 PyObject *empty_string = PyString_FromString(""); |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
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parents:
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diff
changeset
|
469 if (empty_string == NULL) |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
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changeset
|
470 return NULL; |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
471 joiner = PyObject_GetAttrString(empty_string, "join"); |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
472 Py_DECREF(empty_string); |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
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parents:
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diff
changeset
|
473 if (joiner == NULL) |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
474 return NULL; |
|
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
475 } |
| 4598 | 476 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
477 if (PyObject_Size(args) < 0) return NULL; |
| 4598 | 478 |
|
16546
60a2e99c863b
In O_writelines: Replace use of string.joinfields with "".join.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
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diff
changeset
|
479 tmp = PyObject_CallFunction(joiner, "O", args); |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
480 UNLESS (tmp) return NULL; |
| 4598 | 481 |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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changeset
|
482 args = Py_BuildValue("(O)", tmp); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
483 Py_DECREF(tmp); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
484 UNLESS (args) return NULL; |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
485 |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
486 tmp = O_write(self, args); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
487 Py_DECREF(args); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
488 return tmp; |
| 4598 | 489 } |
| 490 | |
| 491 static struct PyMethodDef O_methods[] = { | |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
492 /* Common methods: */ |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
493 {"flush", (PyCFunction)IO_flush, METH_VARARGS, IO_flush__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
494 {"getvalue", (PyCFunction)IO_getval, METH_VARARGS, IO_getval__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
495 {"isatty", (PyCFunction)IO_isatty, METH_VARARGS, IO_isatty__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
Jim Fulton <jim@zope.com>
parents:
14679
diff
changeset
|
496 {"read", (PyCFunction)IO_read, METH_VARARGS, IO_read__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
497 {"readline", (PyCFunction)IO_readline, METH_VARARGS, IO_readline__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
498 {"readlines", (PyCFunction)IO_readlines,METH_VARARGS, IO_readlines__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
Jim Fulton <jim@zope.com>
parents:
14679
diff
changeset
|
499 {"reset", (PyCFunction)IO_reset, METH_VARARGS, IO_reset__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
500 {"tell", (PyCFunction)IO_tell, METH_VARARGS, IO_tell__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
501 {"truncate", (PyCFunction)IO_truncate, METH_VARARGS, IO_truncate__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
502 |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
503 /* Read-write StringIO specific methods: */ |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
Jim Fulton <jim@zope.com>
parents:
14679
diff
changeset
|
504 {"close", (PyCFunction)O_close, METH_VARARGS, O_close__doc__}, |
| 9642 | 505 {"seek", (PyCFunction)O_seek, METH_VARARGS, O_seek__doc__}, |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
Jim Fulton <jim@zope.com>
parents:
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diff
changeset
|
506 {"write", (PyCFunction)O_write, METH_VARARGS, O_write__doc__}, |
| 9642 | 507 {"writelines", (PyCFunction)O_writelines, METH_VARARGS, O_writelines__doc__}, |
| 508 {NULL, NULL} /* sentinel */ | |
| 4598 | 509 }; |
| 510 | |
| 511 static void | |
|
5280
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Unknown changes by Jim Fulton.
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4957
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changeset
|
512 O_dealloc(Oobject *self) { |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
14679
diff
changeset
|
513 if (self->buf != NULL) |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
514 free(self->buf); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
515 PyObject_Del(self); |
| 4598 | 516 } |
| 517 | |
| 518 static PyObject * | |
|
5280
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Unknown changes by Jim Fulton.
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parents:
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diff
changeset
|
519 O_getattr(Oobject *self, char *name) { |
|
15059
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
520 if (strcmp(name, "softspace") == 0) { |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
521 return PyInt_FromLong(self->softspace); |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
522 } |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
523 return Py_FindMethod(O_methods, (PyObject *)self, name); |
| 4598 | 524 } |
| 525 | |
|
5315
65c9e90d8142
My own patch: support writable 'softspace' attribute.
Guido van Rossum <guido@python.org>
parents:
5280
diff
changeset
|
526 static int |
|
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527 O_setattr(Oobject *self, char *name, PyObject *value) { |
|
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528 long x; |
|
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529 if (strcmp(name, "softspace") != 0) { |
|
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|
530 PyErr_SetString(PyExc_AttributeError, name); |
|
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|
531 return -1; |
|
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532 } |
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533 x = PyInt_AsLong(value); |
|
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534 if (x < 0 && PyErr_Occurred()) |
|
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535 return -1; |
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536 self->softspace = x; |
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537 return 0; |
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538 } |
|
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|
539 |
| 4598 | 540 static char Otype__doc__[] = |
| 541 "Simple type for output to strings." | |
| 542 ; | |
| 543 | |
| 544 static PyTypeObject Otype = { | |
|
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|
545 PyObject_HEAD_INIT(NULL) |
|
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546 0, /*ob_size*/ |
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547 "StringO", /*tp_name*/ |
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548 sizeof(Oobject), /*tp_basicsize*/ |
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549 0, /*tp_itemsize*/ |
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550 /* methods */ |
|
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551 (destructor)O_dealloc, /*tp_dealloc*/ |
|
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552 (printfunc)0, /*tp_print*/ |
|
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553 (getattrfunc)O_getattr, /*tp_getattr*/ |
|
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554 (setattrfunc)O_setattr, /*tp_setattr*/ |
|
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|
555 (cmpfunc)0, /*tp_compare*/ |
|
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556 (reprfunc)0, /*tp_repr*/ |
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557 0, /*tp_as_number*/ |
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558 0, /*tp_as_sequence*/ |
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559 0, /*tp_as_mapping*/ |
|
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560 (hashfunc)0, /*tp_hash*/ |
|
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561 (ternaryfunc)0, /*tp_call*/ |
|
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562 (reprfunc)0, /*tp_str*/ |
|
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563 |
|
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|
564 /* Space for future expansion */ |
|
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565 0L,0L,0L,0L, |
|
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566 Otype__doc__ /* Documentation string */ |
| 4598 | 567 }; |
| 568 | |
|
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cPickle release 0.3 from Jim Fulton
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|
569 static PyObject * |
|
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cPickle release 0.3 from Jim Fulton
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|
570 newOobject(int size) { |
|
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571 Oobject *self; |
|
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|
572 |
|
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573 self = PyObject_New(Oobject, &Otype); |
|
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574 if (self == NULL) |
|
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575 return NULL; |
|
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576 self->pos=0; |
|
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|
577 self->string_size = 0; |
|
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|
578 self->softspace = 0; |
|
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|
579 |
|
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580 UNLESS (self->buf=malloc(size*sizeof(char))) { |
|
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|
581 PyErr_SetString(PyExc_MemoryError,"out of memory"); |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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|
582 self->buf_size = 0; |
|
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Added a new "base" type, IOobject for which most of the
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|
583 return NULL; |
|
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Added a new "base" type, IOobject for which most of the
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|
584 } |
|
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cPickle release 0.3 from Jim Fulton
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|
585 |
|
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|
586 self->buf_size=size; |
|
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|
587 return (PyObject*)self; |
|
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|
588 } |
|
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|
589 |
| 4598 | 590 /* End of code for StringO objects */ |
| 591 /* -------------------------------------------------------- */ | |
| 592 | |
| 593 static PyObject * | |
|
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594 I_close(Iobject *self, PyObject *args) { |
|
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|
595 |
|
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Added a new "base" type, IOobject for which most of the
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|
596 UNLESS (PyArg_ParseTuple(args, ":close")) return NULL; |
| 4598 | 597 |
|
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|
598 Py_XDECREF(self->pbuf); |
|
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|
599 self->pbuf = NULL; |
|
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|
600 self->buf = NULL; |
| 9642 | 601 |
|
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602 self->pos = self->string_size = 0; |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
603 |
|
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|
604 Py_INCREF(Py_None); |
|
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diff
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|
605 return Py_None; |
| 9642 | 606 } |
| 607 | |
| 608 static PyObject * | |
|
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|
609 I_seek(Iobject *self, PyObject *args) { |
|
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changeset
|
610 int position, mode = 0; |
| 9642 | 611 |
|
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|
612 UNLESS (IO__opencheck(IOOOBJECT(self))) return NULL; |
|
acb88607b4bd
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|
613 UNLESS (PyArg_ParseTuple(args, "i|i:seek", &position, &mode)) |
|
acb88607b4bd
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|
614 return NULL; |
| 9642 | 615 |
|
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|
616 if (mode == 2) position += self->string_size; |
|
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|
617 else if (mode == 1) position += self->pos; |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
618 |
|
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|
619 if (position < 0) position=0; |
| 9642 | 620 |
|
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|
621 self->pos=position; |
| 4598 | 622 |
|
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|
623 Py_INCREF(Py_None); |
|
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|
624 return Py_None; |
| 4598 | 625 } |
| 626 | |
| 627 static struct PyMethodDef I_methods[] = { | |
|
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|
628 /* Common methods: */ |
|
acb88607b4bd
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|
629 {"flush", (PyCFunction)IO_flush, METH_VARARGS, IO_flush__doc__}, |
|
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Added a new "base" type, IOobject for which most of the
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changeset
|
630 {"getvalue", (PyCFunction)IO_getval, METH_VARARGS, IO_getval__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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changeset
|
631 {"isatty", (PyCFunction)IO_isatty, METH_VARARGS, IO_isatty__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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|
632 {"read", (PyCFunction)IO_read, METH_VARARGS, IO_read__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
633 {"readline", (PyCFunction)IO_readline, METH_VARARGS, IO_readline__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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changeset
|
634 {"readlines", (PyCFunction)IO_readlines,METH_VARARGS, IO_readlines__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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changeset
|
635 {"reset", (PyCFunction)IO_reset, METH_VARARGS, IO_reset__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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diff
changeset
|
636 {"tell", (PyCFunction)IO_tell, METH_VARARGS, IO_tell__doc__}, |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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changeset
|
637 {"truncate", (PyCFunction)IO_truncate, METH_VARARGS, IO_truncate__doc__}, |
|
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Added a new "base" type, IOobject for which most of the
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parents:
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diff
changeset
|
638 |
|
acb88607b4bd
Added a new "base" type, IOobject for which most of the
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diff
changeset
|
639 /* Read-only StringIO specific methods: */ |
|
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Added a new "base" type, IOobject for which most of the
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diff
changeset
|
640 {"close", (PyCFunction)I_close, METH_VARARGS, O_close__doc__}, |
| 9642 | 641 {"seek", (PyCFunction)I_seek, METH_VARARGS, O_seek__doc__}, |
| 642 {NULL, NULL} | |
| 4598 | 643 }; |
| 644 | |
| 645 static void | |
|
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|
646 I_dealloc(Iobject *self) { |
|
6215
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Fix the bug Jeremy was experiencing: both the close() and the
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changeset
|
647 Py_XDECREF(self->pbuf); |
|
12576
1c7c2dd1beb1
Vladimir Marangozov's long-awaited malloc restructuring.
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diff
changeset
|
648 PyObject_Del(self); |
| 4598 | 649 } |
| 650 | |
| 651 static PyObject * | |
|
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|
652 I_getattr(Iobject *self, char *name) { |
| 4598 | 653 return Py_FindMethod(I_methods, (PyObject *)self, name); |
| 654 } | |
| 655 | |
| 656 static char Itype__doc__[] = | |
| 657 "Simple type for treating strings as input file streams" | |
| 658 ; | |
| 659 | |
| 660 static PyTypeObject Itype = { | |
|
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|
661 PyObject_HEAD_INIT(NULL) |
|
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|
662 0, /*ob_size*/ |
|
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changeset
|
663 "StringI", /*tp_name*/ |
|
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|
664 sizeof(Iobject), /*tp_basicsize*/ |
|
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|
665 0, /*tp_itemsize*/ |
|
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|
666 /* methods */ |
|
e8f8cf358054
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|
667 (destructor)I_dealloc, /*tp_dealloc*/ |
|
e8f8cf358054
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|
668 (printfunc)0, /*tp_print*/ |
|
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669 (getattrfunc)I_getattr, /*tp_getattr*/ |
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670 (setattrfunc)0, /*tp_setattr*/ |
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671 (cmpfunc)0, /*tp_compare*/ |
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672 (reprfunc)0, /*tp_repr*/ |
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673 0, /*tp_as_number*/ |
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674 0, /*tp_as_sequence*/ |
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675 0, /*tp_as_mapping*/ |
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676 (hashfunc)0, /*tp_hash*/ |
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677 (ternaryfunc)0, /*tp_call*/ |
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678 (reprfunc)0, /*tp_str*/ |
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679 |
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680 /* Space for future expansion */ |
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681 0L,0L,0L,0L, |
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682 Itype__doc__ /* Documentation string */ |
| 4598 | 683 }; |
| 684 | |
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685 static PyObject * |
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686 newIobject(PyObject *s) { |
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687 Iobject *self; |
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688 char *buf; |
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689 int size; |
|
12385
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690 |
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691 if (!PyString_Check(s)) { |
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692 PyErr_Format(PyExc_TypeError, "expected string, %.200s found", |
|
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693 s->ob_type->tp_name); |
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694 return NULL; |
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695 } |
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696 buf = PyString_AS_STRING(s); |
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697 size = PyString_GET_SIZE(s); |
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698 UNLESS (self = PyObject_New(Iobject, &Itype)) return NULL; |
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699 Py_INCREF(s); |
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700 self->buf=buf; |
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701 self->string_size=size; |
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702 self->pbuf=s; |
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703 self->pos=0; |
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704 |
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705 return (PyObject*)self; |
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706 } |
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707 |
| 4598 | 708 /* End of code for StringI objects */ |
| 709 /* -------------------------------------------------------- */ | |
| 710 | |
| 711 | |
| 712 static char IO_StringIO__doc__[] = | |
| 713 "StringIO([s]) -- Return a StringIO-like stream for reading or writing" | |
| 714 ; | |
| 715 | |
| 716 static PyObject * | |
|
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717 IO_StringIO(PyObject *self, PyObject *args) { |
| 4598 | 718 PyObject *s=0; |
| 719 | |
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Added a new "base" type, IOobject for which most of the
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720 if (!PyArg_ParseTuple(args, "|O:StringIO", &s)) return NULL; |
|
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|
721 |
|
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722 if (s) return newIobject(s); |
|
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|
723 return newOobject(128); |
| 4598 | 724 } |
| 725 | |
| 726 /* List of methods defined in the module */ | |
| 727 | |
| 728 static struct PyMethodDef IO_methods[] = { | |
|
13817
3c0f75a2198f
Use METH_VARARGS instead of numeric constant 1 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
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|
729 {"StringIO", (PyCFunction)IO_StringIO, |
|
3c0f75a2198f
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|
730 METH_VARARGS, IO_StringIO__doc__}, |
| 4906 | 731 {NULL, NULL} /* sentinel */ |
| 4598 | 732 }; |
| 733 | |
| 734 | |
| 735 /* Initialization function for the module (*must* be called initcStringIO) */ | |
| 736 | |
|
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737 static struct PycStringIO_CAPI CAPI = { |
|
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|
738 IO_cread, |
|
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Added a new "base" type, IOobject for which most of the
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|
739 IO_creadline, |
|
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|
740 O_cwrite, |
|
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diff
changeset
|
741 IO_cgetval, |
|
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|
742 newOobject, |
|
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|
743 newIobject, |
|
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|
744 &Itype, |
|
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745 &Otype, |
|
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746 }; |
|
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|
747 |
| 9642 | 748 #ifndef DL_EXPORT /* declarations for DLL import/export */ |
| 749 #define DL_EXPORT(RTYPE) RTYPE | |
| 750 #endif | |
|
9588
38023a425e48
Add DL_EXPORT() to all modules that could possibly be used
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diff
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|
751 DL_EXPORT(void) |
|
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c09c0171474f
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parents:
13620
diff
changeset
|
752 initcStringIO(void) { |
|
6227
613f976a57b4
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|
753 PyObject *m, *d, *v; |
| 4598 | 754 |
|
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|
755 |
| 4598 | 756 /* Create the module and add the functions */ |
| 757 m = Py_InitModule4("cStringIO", IO_methods, | |
| 758 cStringIO_module_documentation, | |
| 759 (PyObject*)NULL,PYTHON_API_VERSION); | |
| 760 | |
| 761 /* Add some symbolic constants to the module */ | |
| 762 d = PyModule_GetDict(m); | |
| 763 | |
| 4906 | 764 /* Export C API */ |
|
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changeset
|
765 Itype.ob_type=&PyType_Type; |
|
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|
766 Otype.ob_type=&PyType_Type; |
|
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|
767 PyDict_SetItemString(d,"cStringIO_CAPI", |
|
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|
768 v = PyCObject_FromVoidPtr(&CAPI,NULL)); |
|
613f976a57b4
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diff
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|
769 Py_XDECREF(v); |
|
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parents:
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changeset
|
770 |
|
e8f8cf358054
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parents:
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diff
changeset
|
771 /* Export Types */ |
| 4598 | 772 PyDict_SetItemString(d,"InputType", (PyObject*)&Itype); |
| 773 PyDict_SetItemString(d,"OutputType", (PyObject*)&Otype); | |
|
5991
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parents:
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diff
changeset
|
774 |
|
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Guido van Rossum <guido@python.org>
parents:
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diff
changeset
|
775 /* Maybe make certain warnings go away */ |
|
15059
acb88607b4bd
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changeset
|
776 if (0) PycString_IMPORT; |
| 4598 | 777 } |
