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71 lines
2.0 KiB
71 lines
2.0 KiB
5 years ago
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#ifndef Py_CSTRINGIO_H
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#define Py_CSTRINGIO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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This header provides access to cStringIO objects from C.
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Functions are provided for calling cStringIO objects and
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macros are provided for testing whether you have cStringIO
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objects.
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Before calling any of the functions or macros, you must initialize
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the routines with:
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PycString_IMPORT
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This would typically be done in your init function.
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*/
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#define PycString_IMPORT \
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PycStringIO = (struct PycStringIO_CAPI*)PyCObject_Import("cStringIO", \
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"cStringIO_CAPI")
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/* Basic functions to manipulate cStringIO objects from C */
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static struct PycStringIO_CAPI {
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/* Read a string from an input object. If the last argument
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is -1, the remainder will be read.
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*/
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int(*cread)(PyObject *, char **, Py_ssize_t);
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/* Read a line from an input object. Returns the length of the read
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line as an int and a pointer inside the object buffer as char** (so
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the caller doesn't have to provide its own buffer as destination).
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*/
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int(*creadline)(PyObject *, char **);
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/* Write a string to an output object*/
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int(*cwrite)(PyObject *, const char *, Py_ssize_t);
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/* Get the output object as a Python string (returns new reference). */
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PyObject *(*cgetvalue)(PyObject *);
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/* Create a new output object */
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PyObject *(*NewOutput)(int);
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/* Create an input object from a Python string
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(copies the Python string reference).
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*/
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PyObject *(*NewInput)(PyObject *);
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/* The Python types for cStringIO input and output objects.
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Note that you can do input on an output object.
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*/
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PyTypeObject *InputType, *OutputType;
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} *PycStringIO;
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/* These can be used to test if you have one */
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#define PycStringIO_InputCheck(O) \
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((O)->ob_type==PycStringIO->InputType)
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#define PycStringIO_OutputCheck(O) \
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((O)->ob_type==PycStringIO->OutputType)
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_CSTRINGIO_H */
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