| 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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| 32 |
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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 | /*
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| 252 | newobj = PyString_FromStringAndSize(NULL, len);
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| 253 | if (!newobj)
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| 254 | return NULL;
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| 255 |
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| 256 | s = PyString_AS_STRING(newobj);
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| 257 | */
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| 258 |
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| 259 | Py_MEMCPY(result, cptr, len);
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| 260 |
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| 261 | for (i = 0; i < len; i++) {
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| 262 | int c = Py_CHARMASK(result[i]);
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| 263 | if (Py_ISUPPER(c))
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| 264 | result[i] = Py_TOLOWER(c);
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| 265 | }
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| 266 | }
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| 267 |
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| 268 |
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| 269 | PyDoc_STRVAR_shared(_Py_upper__doc__,
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| 270 | "B.upper() -> copy of B\n\
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| 271 | \n\
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| 272 | Return a copy of B with all ASCII characters converted to uppercase.");
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| 273 |
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| 274 | void
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| 275 | _Py_bytes_upper(char *result, const char *cptr, Py_ssize_t len)
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| 276 | {
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| 277 | Py_ssize_t i;
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| 278 |
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| 279 | /*
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| 280 | newobj = PyString_FromStringAndSize(NULL, len);
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| 281 | if (!newobj)
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| 282 | return NULL;
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| 283 |
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| 284 | s = PyString_AS_STRING(newobj);
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| 285 | */
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| 286 |
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| 287 | Py_MEMCPY(result, cptr, len);
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| 288 |
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| 289 | for (i = 0; i < len; i++) {
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| 290 | int c = Py_CHARMASK(result[i]);
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| 291 | if (Py_ISLOWER(c))
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| 292 | result[i] = Py_TOUPPER(c);
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| 293 | }
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| 294 | }
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| 295 |
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| 296 |
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| 297 | PyDoc_STRVAR_shared(_Py_title__doc__,
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| 298 | "B.title() -> copy of B\n\
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| 299 | \n\
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| 300 | Return a titlecased version of B, i.e. ASCII words start with uppercase\n\
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| 301 | characters, all remaining cased characters have lowercase.");
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| 302 |
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| 303 | void
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| 304 | _Py_bytes_title(char *result, char *s, Py_ssize_t len)
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| 305 | {
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| 306 | Py_ssize_t i;
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| 307 | int previous_is_cased = 0;
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| 308 |
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| 309 | /*
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| 310 | newobj = PyString_FromStringAndSize(NULL, len);
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| 311 | if (newobj == NULL)
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| 312 | return NULL;
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| 313 | s_new = PyString_AsString(newobj);
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| 314 | */
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| 315 | for (i = 0; i < len; i++) {
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| 316 | int c = Py_CHARMASK(*s++);
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| 317 | if (Py_ISLOWER(c)) {
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| 318 | if (!previous_is_cased)
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| 319 | c = Py_TOUPPER(c);
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| 320 | previous_is_cased = 1;
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| 321 | } else if (Py_ISUPPER(c)) {
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| 322 | if (previous_is_cased)
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| 323 | c = Py_TOLOWER(c);
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| 324 | previous_is_cased = 1;
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| 325 | } else
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| 326 | previous_is_cased = 0;
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| 327 | *result++ = c;
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| 328 | }
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| 329 | }
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| 330 |
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| 331 |
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| 332 | PyDoc_STRVAR_shared(_Py_capitalize__doc__,
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| 333 | "B.capitalize() -> copy of B\n\
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| 334 | \n\
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| 335 | Return a copy of B with only its first character capitalized (ASCII)\n\
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| 336 | and the rest lower-cased.");
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| 337 |
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| 338 | void
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| 339 | _Py_bytes_capitalize(char *result, char *s, Py_ssize_t len)
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| 340 | {
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| 341 | Py_ssize_t i;
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| 342 |
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| 343 | /*
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| 344 | newobj = PyString_FromStringAndSize(NULL, len);
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| 345 | if (newobj == NULL)
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| 346 | return NULL;
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| 347 | s_new = PyString_AsString(newobj);
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| 348 | */
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| 349 | if (0 < len) {
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| 350 | int c = Py_CHARMASK(*s++);
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| 351 | if (Py_ISLOWER(c))
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| 352 | *result = Py_TOUPPER(c);
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| 353 | else
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| 354 | *result = c;
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| 355 | result++;
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| 356 | }
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| 357 | for (i = 1; i < len; i++) {
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| 358 | int c = Py_CHARMASK(*s++);
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| 359 | if (Py_ISUPPER(c))
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| 360 | *result = Py_TOLOWER(c);
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| 361 | else
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| 362 | *result = c;
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| 363 | result++;
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| 364 | }
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| 365 | }
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| 366 |
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| 367 |
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| 368 | PyDoc_STRVAR_shared(_Py_swapcase__doc__,
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| 369 | "B.swapcase() -> copy of B\n\
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| 370 | \n\
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| 371 | Return a copy of B with uppercase ASCII characters converted\n\
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| 372 | to lowercase ASCII and vice versa.");
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| 373 |
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| 374 | void
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| 375 | _Py_bytes_swapcase(char *result, char *s, Py_ssize_t len)
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| 376 | {
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| 377 | Py_ssize_t i;
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| 378 |
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| 379 | /*
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| 380 | newobj = PyString_FromStringAndSize(NULL, len);
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| 381 | if (newobj == NULL)
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| 382 | return NULL;
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| 383 | s_new = PyString_AsString(newobj);
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| 384 | */
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| 385 | for (i = 0; i < len; i++) {
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| 386 | int c = Py_CHARMASK(*s++);
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| 387 | if (Py_ISLOWER(c)) {
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| 388 | *result = Py_TOUPPER(c);
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| 389 | }
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| 390 | else if (Py_ISUPPER(c)) {
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| 391 | *result = Py_TOLOWER(c);
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| 392 | }
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| 393 | else
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| 394 | *result = c;
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| 395 | result++;
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| 396 | }
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| 397 | }
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| 398 |
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