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More coding by random modification.

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Encoding now return bytes instead of str8.
eval(), exec(), compile() now accept unicode or bytes.
This commit is contained in:
Guido van Rossum 2007-05-04 00:41:39 +00:00
parent bae5cedb8d
commit f15a29f975
12 changed files with 185 additions and 155 deletions
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94
Python/bltinmodule.c
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@ -412,6 +412,36 @@ PyDoc_STRVAR(cmp_doc,
\n\
Return negative if x<y, zero if x==y, positive if x>y.");
static char *
source_as_string(PyObject *cmd)
{
char *str;
Py_ssize_t size;
if (!PyObject_CheckReadBuffer(cmd) &&
!PyUnicode_Check(cmd)) {
PyErr_SetString(PyExc_TypeError,
"eval()/exec() arg 1 must be a string, bytes or code object");
return NULL;
}
if (PyUnicode_Check(cmd)) {
cmd = _PyUnicode_AsDefaultEncodedString(cmd, NULL);
if (cmd == NULL)
return NULL;
}
if (PyObject_AsReadBuffer(cmd, (const void **)&str, &size) < 0) {
return NULL;
}
if (strlen(str) != size) {
PyErr_SetString(PyExc_TypeError,
"source code string cannot contain null bytes");
return NULL;
}
return str;
}
static PyObject *
builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
{
@ -422,8 +452,7 @@ builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
int dont_inherit = 0;
int supplied_flags = 0;
PyCompilerFlags cf;
PyObject *result = NULL, *cmd, *tmp = NULL;
Py_ssize_t length;
PyObject *cmd;
static char *kwlist[] = {"source", "filename", "mode", "flags",
"dont_inherit", NULL};
@ -432,22 +461,11 @@ builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
&supplied_flags, &dont_inherit))
return NULL;
cf.cf_flags = supplied_flags;
cf.cf_flags = supplied_flags | PyCF_SOURCE_IS_UTF8;
if (PyUnicode_Check(cmd)) {
tmp = PyUnicode_AsUTF8String(cmd);
if (tmp == NULL)
return NULL;
cmd = tmp;
cf.cf_flags |= PyCF_SOURCE_IS_UTF8;
}
if (PyObject_AsReadBuffer(cmd, (const void **)&str, &length))
str = source_as_string(cmd);
if (str == NULL)
return NULL;
if ((size_t)length != strlen(str)) {
PyErr_SetString(PyExc_TypeError,
"compile() expected string without null bytes");
goto cleanup;
}
if (strcmp(startstr, "exec") == 0)
start = Py_file_input;
@ -458,7 +476,7 @@ builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
else {
PyErr_SetString(PyExc_ValueError,
"compile() arg 3 must be 'exec' or 'eval' or 'single'");
goto cleanup;
return NULL;
}
if (supplied_flags &
@ -466,17 +484,14 @@ builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
{
PyErr_SetString(PyExc_ValueError,
"compile(): unrecognised flags");
goto cleanup;
return NULL;
}
/* XXX Warn if (supplied_flags & PyCF_MASK_OBSOLETE) != 0? */
if (!dont_inherit) {
PyEval_MergeCompilerFlags(&cf);
}
result = Py_CompileStringFlags(str, filename, start, &cf);
cleanup:
Py_XDECREF(tmp);
return result;
return Py_CompileStringFlags(str, filename, start, &cf);
}
PyDoc_STRVAR(compile_doc,
@ -584,28 +599,14 @@ builtin_eval(PyObject *self, PyObject *args)
return PyEval_EvalCode((PyCodeObject *) cmd, globals, locals);
}
if (!PyString_Check(cmd) &&
!PyUnicode_Check(cmd)) {
PyErr_SetString(PyExc_TypeError,
"eval() arg 1 must be a string or code object");
str = source_as_string(cmd);
if (str == NULL)
return NULL;
}
cf.cf_flags = 0;
if (PyUnicode_Check(cmd)) {
tmp = PyUnicode_AsUTF8String(cmd);
if (tmp == NULL)
return NULL;
cmd = tmp;
cf.cf_flags |= PyCF_SOURCE_IS_UTF8;
}
if (PyString_AsStringAndSize(cmd, &str, NULL)) {
Py_XDECREF(tmp);
return NULL;
}
while (*str == ' ' || *str == '\t')
str++;
cf.cf_flags = PyCF_SOURCE_IS_UTF8;
(void)PyEval_MergeCompilerFlags(&cf);
result = PyRun_StringFlags(str, Py_eval_input, globals, locals, &cf);
Py_XDECREF(tmp);
@ -694,25 +695,16 @@ builtin_exec(PyObject *self, PyObject *args)
locals);
}
else {
PyObject *tmp = NULL;
char *str;
char *str = source_as_string(prog);
PyCompilerFlags cf;
cf.cf_flags = 0;
if (PyUnicode_Check(prog)) {
tmp = PyUnicode_AsUTF8String(prog);
if (tmp == NULL)
return NULL;
prog = tmp;
cf.cf_flags |= PyCF_SOURCE_IS_UTF8;
}
if (PyString_AsStringAndSize(prog, &str, NULL))
if (str == NULL)
return NULL;
cf.cf_flags = PyCF_SOURCE_IS_UTF8;
if (PyEval_MergeCompilerFlags(&cf))
v = PyRun_StringFlags(str, Py_file_input, globals,
locals, &cf);
else
v = PyRun_String(str, Py_file_input, globals, locals);
Py_XDECREF(tmp);
}
if (v == NULL)
return NULL;