Mercurial > cpython-lru_cache-weakref

annotate Objects/bytes_methods.c @ 66978:aed2bbafa550 3.1

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Blocked revisions 87324 via svnmerge ........ r87324 | r.david.murray | 2010-12-16 14:08:51 -0500 (Thu, 16 Dec 2010) | 9 lines #10719: restore messages generated on invalid compileall args Before the introduction of filename arguments to compileall it gave semi useful messages about not being able to 'list' names that weren't valid directories. This fix restores that behavior. In addition to the test for this case, the patch also adds a test for the default behavior of compileall when no arguments are provided, and fixes a bug in one of the previously added tests. ........
author R. David Murray <rdmurray@bitdance.com>
date Thu, 16 Dec 2010 19:10:16 +0000
parents de46e4250431
children 586745894ab8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include "Python.h"
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2 #include "bytes_methods.h"
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3
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4 PyDoc_STRVAR_shared(_Py_isspace__doc__,
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5 "B.isspace() -> bool\n\
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6 \n\
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7 Return True if all characters in B are whitespace\n\
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8 and there is at least one character in B, False otherwise.");
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9
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10 PyObject*
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11 _Py_bytes_isspace(const char *cptr, Py_ssize_t len)
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12 {
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13 register const unsigned char *p
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14 = (unsigned char *) cptr;
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15 register const unsigned char *e;
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16
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17 /* Shortcut for single character strings */
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18 if (len == 1 && Py_ISSPACE(*p))
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19 Py_RETURN_TRUE;
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20
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21 /* Special case for empty strings */
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22 if (len == 0)
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23 Py_RETURN_FALSE;
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24
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25 e = p + len;
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26 for (; p < e; p++) {
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27 if (!Py_ISSPACE(*p))
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28 Py_RETURN_FALSE;
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29 }
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30 Py_RETURN_TRUE;
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31 }
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33
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34 PyDoc_STRVAR_shared(_Py_isalpha__doc__,
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35 "B.isalpha() -> bool\n\
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36 \n\
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37 Return True if all characters in B are alphabetic\n\
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38 and there is at least one character in B, False otherwise.");
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39
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40 PyObject*
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41 _Py_bytes_isalpha(const char *cptr, Py_ssize_t len)
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42 {
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43 register const unsigned char *p
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44 = (unsigned char *) cptr;
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45 register const unsigned char *e;
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46
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47 /* Shortcut for single character strings */
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48 if (len == 1 && Py_ISALPHA(*p))
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49 Py_RETURN_TRUE;
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50
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51 /* Special case for empty strings */
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52 if (len == 0)
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53 Py_RETURN_FALSE;
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54
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55 e = p + len;
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56 for (; p < e; p++) {
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57 if (!Py_ISALPHA(*p))
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58 Py_RETURN_FALSE;
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59 }
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60 Py_RETURN_TRUE;
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61 }
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62
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63
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64 PyDoc_STRVAR_shared(_Py_isalnum__doc__,
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65 "B.isalnum() -> bool\n\
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66 \n\
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67 Return True if all characters in B are alphanumeric\n\
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68 and there is at least one character in B, False otherwise.");
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69
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70 PyObject*
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71 _Py_bytes_isalnum(const char *cptr, Py_ssize_t len)
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72 {
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73 register const unsigned char *p
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74 = (unsigned char *) cptr;
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75 register const unsigned char *e;
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76
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77 /* Shortcut for single character strings */
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78 if (len == 1 && Py_ISALNUM(*p))
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79 Py_RETURN_TRUE;
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80
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81 /* Special case for empty strings */
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82 if (len == 0)
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83 Py_RETURN_FALSE;
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84
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85 e = p + len;
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86 for (; p < e; p++) {
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87 if (!Py_ISALNUM(*p))
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88 Py_RETURN_FALSE;
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89 }
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90 Py_RETURN_TRUE;
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91 }
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92
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93
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94 PyDoc_STRVAR_shared(_Py_isdigit__doc__,
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95 "B.isdigit() -> bool\n\
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96 \n\
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97 Return True if all characters in B are digits\n\
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98 and there is at least one character in B, False otherwise.");
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99
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100 PyObject*
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101 _Py_bytes_isdigit(const char *cptr, Py_ssize_t len)
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102 {
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103 register const unsigned char *p
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104 = (unsigned char *) cptr;
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105 register const unsigned char *e;
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106
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107 /* Shortcut for single character strings */
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108 if (len == 1 && Py_ISDIGIT(*p))
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109 Py_RETURN_TRUE;
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110
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111 /* Special case for empty strings */
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112 if (len == 0)
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113 Py_RETURN_FALSE;
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114
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115 e = p + len;
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116 for (; p < e; p++) {
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117 if (!Py_ISDIGIT(*p))
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118 Py_RETURN_FALSE;
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119 }
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120 Py_RETURN_TRUE;
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121 }
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122
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123
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124 PyDoc_STRVAR_shared(_Py_islower__doc__,
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125 "B.islower() -> bool\n\
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126 \n\
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127 Return True if all cased characters in B are lowercase and there is\n\
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128 at least one cased character in B, False otherwise.");
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129
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130 PyObject*
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131 _Py_bytes_islower(const char *cptr, Py_ssize_t len)
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132 {
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133 register const unsigned char *p
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134 = (unsigned char *) cptr;
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135 register const unsigned char *e;
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136 int cased;
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137
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138 /* Shortcut for single character strings */
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139 if (len == 1)
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140 return PyBool_FromLong(Py_ISLOWER(*p));
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141
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142 /* Special case for empty strings */
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143 if (len == 0)
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144 Py_RETURN_FALSE;
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145
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146 e = p + len;
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147 cased = 0;
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148 for (; p < e; p++) {
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149 if (Py_ISUPPER(*p))
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150 Py_RETURN_FALSE;
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151 else if (!cased && Py_ISLOWER(*p))
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152 cased = 1;
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153 }
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154 return PyBool_FromLong(cased);
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155 }
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156
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157
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158 PyDoc_STRVAR_shared(_Py_isupper__doc__,
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159 "B.isupper() -> bool\n\
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160 \n\
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161 Return True if all cased characters in B are uppercase and there is\n\
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162 at least one cased character in B, False otherwise.");
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163
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164 PyObject*
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165 _Py_bytes_isupper(const char *cptr, Py_ssize_t len)
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166 {
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167 register const unsigned char *p
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168 = (unsigned char *) cptr;
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169 register const unsigned char *e;
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170 int cased;
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171
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172 /* Shortcut for single character strings */
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173 if (len == 1)
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174 return PyBool_FromLong(Py_ISUPPER(*p));
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175
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176 /* Special case for empty strings */
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177 if (len == 0)
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178 Py_RETURN_FALSE;
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179
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180 e = p + len;
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181 cased = 0;
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182 for (; p < e; p++) {
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183 if (Py_ISLOWER(*p))
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184 Py_RETURN_FALSE;
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185 else if (!cased && Py_ISUPPER(*p))
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186 cased = 1;
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187 }
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188 return PyBool_FromLong(cased);
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189 }
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190
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191
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192 PyDoc_STRVAR_shared(_Py_istitle__doc__,
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193 "B.istitle() -> bool\n\
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194 \n\
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195 Return True if B is a titlecased string and there is at least one\n\
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196 character in B, i.e. uppercase characters may only follow uncased\n\
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197 characters and lowercase characters only cased ones. Return False\n\
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198 otherwise.");
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199
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200 PyObject*
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201 _Py_bytes_istitle(const char *cptr, Py_ssize_t len)
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202 {
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203 register const unsigned char *p
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204 = (unsigned char *) cptr;
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205 register const unsigned char *e;
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206 int cased, previous_is_cased;
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207
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208 /* Shortcut for single character strings */
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209 if (len == 1)
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210 return PyBool_FromLong(Py_ISUPPER(*p));
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211
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212 /* Special case for empty strings */
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213 if (len == 0)
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214 Py_RETURN_FALSE;
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215
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216 e = p + len;
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217 cased = 0;
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218 previous_is_cased = 0;
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219 for (; p < e; p++) {
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220 register const unsigned char ch = *p;
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221
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222 if (Py_ISUPPER(ch)) {
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223 if (previous_is_cased)
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224 Py_RETURN_FALSE;
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225 previous_is_cased = 1;
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226 cased = 1;
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227 }
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228 else if (Py_ISLOWER(ch)) {
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229 if (!previous_is_cased)
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230 Py_RETURN_FALSE;
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231 previous_is_cased = 1;
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232 cased = 1;
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233 }
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234 else
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235 previous_is_cased = 0;
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236 }
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237 return PyBool_FromLong(cased);
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238 }
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239
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240
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241 PyDoc_STRVAR_shared(_Py_lower__doc__,
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242 "B.lower() -> copy of B\n\
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243 \n\
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244 Return a copy of B with all ASCII characters converted to lowercase.");
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245
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246 void
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247 _Py_bytes_lower(char *result, const char *cptr, Py_ssize_t len)
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248 {
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249 Py_ssize_t i;
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250
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251 Py_MEMCPY(result, cptr, len);
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252
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253 for (i = 0; i < len; i++) {
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254 int c = Py_CHARMASK(result[i]);
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255 if (Py_ISUPPER(c))
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256 result[i] = Py_TOLOWER(c);
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257 }
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258 }
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259
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260
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261 PyDoc_STRVAR_shared(_Py_upper__doc__,
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262 "B.upper() -> copy of B\n\
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263 \n\
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264 Return a copy of B with all ASCII characters converted to uppercase.");
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265
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266 void
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267 _Py_bytes_upper(char *result, const char *cptr, Py_ssize_t len)
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268 {
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269 Py_ssize_t i;
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270
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271 Py_MEMCPY(result, cptr, len);
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272
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273 for (i = 0; i < len; i++) {
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274 int c = Py_CHARMASK(result[i]);
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275 if (Py_ISLOWER(c))
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276 result[i] = Py_TOUPPER(c);
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277 }
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278 }
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279
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280
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281 PyDoc_STRVAR_shared(_Py_title__doc__,
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282 "B.title() -> copy of B\n\
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283 \n\
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284 Return a titlecased version of B, i.e. ASCII words start with uppercase\n\
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285 characters, all remaining cased characters have lowercase.");
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286
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287 void
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288 _Py_bytes_title(char *result, char *s, Py_ssize_t len)
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289 {
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290 Py_ssize_t i;
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291 int previous_is_cased = 0;
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292
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293 for (i = 0; i < len; i++) {
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294 int c = Py_CHARMASK(*s++);
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295 if (Py_ISLOWER(c)) {
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296 if (!previous_is_cased)
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297 c = Py_TOUPPER(c);
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298 previous_is_cased = 1;
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299 } else if (Py_ISUPPER(c)) {
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300 if (previous_is_cased)
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301 c = Py_TOLOWER(c);
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302 previous_is_cased = 1;
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303 } else
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304 previous_is_cased = 0;
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305 *result++ = c;
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306 }
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307 }
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308
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309
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310 PyDoc_STRVAR_shared(_Py_capitalize__doc__,
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311 "B.capitalize() -> copy of B\n\
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312 \n\
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313 Return a copy of B with only its first character capitalized (ASCII)\n\
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314 and the rest lower-cased.");
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315
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316 void
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317 _Py_bytes_capitalize(char *result, char *s, Py_ssize_t len)
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318 {
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319 Py_ssize_t i;
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320
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321 if (0 < len) {
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322 int c = Py_CHARMASK(*s++);
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323 if (Py_ISLOWER(c))
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324 *result = Py_TOUPPER(c);
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325 else
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326 *result = c;
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327 result++;
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328 }
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329 for (i = 1; i < len; i++) {
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330 int c = Py_CHARMASK(*s++);
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331 if (Py_ISUPPER(c))
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332 *result = Py_TOLOWER(c);
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333 else
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334 *result = c;
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335 result++;
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336 }
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337 }
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338
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339
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340 PyDoc_STRVAR_shared(_Py_swapcase__doc__,
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341 "B.swapcase() -> copy of B\n\
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342 \n\
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343 Return a copy of B with uppercase ASCII characters converted\n\
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344 to lowercase ASCII and vice versa.");
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345
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346 void
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347 _Py_bytes_swapcase(char *result, char *s, Py_ssize_t len)
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348 {
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349 Py_ssize_t i;
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350
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351 for (i = 0; i < len; i++) {
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352 int c = Py_CHARMASK(*s++);
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353 if (Py_ISLOWER(c)) {
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354 *result = Py_TOUPPER(c);
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355 }
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356 else if (Py_ISUPPER(c)) {
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357 *result = Py_TOLOWER(c);
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358 }
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359 else
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360 *result = c;
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361 result++;
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362 }
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363 }
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364
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365
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366 PyDoc_STRVAR_shared(_Py_maketrans__doc__,
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367 "B.maketrans(frm, to) -> translation table\n\
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368 \n\
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369 Return a translation table (a bytes object of length 256)\n\
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370 suitable for use in bytes.translate where each byte in frm is\n\
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371 mapped to the byte at the same position in to.\n\
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372 The strings frm and to must be of the same length.");
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373
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374 static Py_ssize_t
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375 _getbuffer(PyObject *obj, Py_buffer *view)
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376 {
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377 PyBufferProcs *buffer = Py_TYPE(obj)->tp_as_buffer;
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378
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379 if (buffer == NULL || buffer->bf_getbuffer == NULL)
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380 {
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381 PyErr_Format(PyExc_TypeError,
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382 "Type %.100s doesn't support the buffer API",
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383 Py_TYPE(obj)->tp_name);
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384 return -1;
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385 }
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386
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387 if (buffer->bf_getbuffer(obj, view, PyBUF_SIMPLE) < 0)
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388 return -1;
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389 return view->len;
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390 }
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391
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392 PyObject *
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393 _Py_bytes_maketrans(PyObject *args)
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394 {
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395 PyObject *frm, *to, *res = NULL;
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396 Py_buffer bfrm, bto;
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397 Py_ssize_t i;
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398 char *p;
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399
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400 bfrm.len = -1;
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401 bto.len = -1;
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402
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403 if (!PyArg_ParseTuple(args, "OO:maketrans", &frm, &to))
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404 return NULL;
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405 if (_getbuffer(frm, &bfrm) < 0)
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406 return NULL;
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407 if (_getbuffer(to, &bto) < 0)
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408 goto done;
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409 if (bfrm.len != bto.len) {
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410 PyErr_Format(PyExc_ValueError,
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411 "maketrans arguments must have same length");
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412 goto done;
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413 }
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414 res = PyBytes_FromStringAndSize(NULL, 256);
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415 if (!res) {
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416 goto done;
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417 }
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418 p = PyBytes_AS_STRING(res);
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419 for (i = 0; i < 256; i++)
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420 p[i] = (char) i;
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421 for (i = 0; i < bfrm.len; i++) {
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422 p[((unsigned char *)bfrm.buf)[i]] = ((char *)bto.buf)[i];
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423 }
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424
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425 done:
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426 if (bfrm.len != -1)
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427 PyBuffer_Release(&bfrm);
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428 if (bto.len != -1)
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429 PyBuffer_Release(&bto);
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430 return res;
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431 }