ref: 2c9e3861a54e22498fb2e3226defe4393b20b202
dir: /sys/src/cmd/python/Objects/stringlib/README.txt/
bits shared by the stringobject and unicodeobject implementations (and
possibly other modules, in a not too distant future).
the stuff in here is included into relevant places; see the individual
source files for details.
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the following defines used by the different modules:
STRINGLIB_CHAR
the type used to hold a character (char or Py_UNICODE)
STRINGLIB_EMPTY
a PyObject representing the empty string
int STRINGLIB_CMP(STRINGLIB_CHAR*, STRINGLIB_CHAR*, Py_ssize_t)
compares two strings. returns 0 if they match, and non-zero if not.
Py_ssize_t STRINGLIB_LEN(PyObject*)
returns the length of the given string object (which must be of the
right type)
PyObject* STRINGLIB_NEW(STRINGLIB_CHAR*, Py_ssize_t)
creates a new string object
STRINGLIB_CHAR* STRINGLIB_STR(PyObject*)
returns the pointer to the character data for the given string
object (which must be of the right type)