[New-bugs-announce] [issue3353] make built-in tokenizer available via Python C API

[Fredrik Lundh]

New submission from Fredrik Lundh <effbot at users.sourceforge.net>:

CPython provides a Python-level API to the parser, but not to the
tokenizer itself.  Somewhat annoyingly, it does provide a nice C API,
but that's not properly exposed for external modules.  

To fix this, the tokenizer.h file should be moved from the Parser
directory to the Include directory, and the (semi-public) functions that
already available must be flagged with PyAPI_FUNC, as shown below.

The PyAPI_FUNC fix should be non-intrusive enough to go into 2.6 and
3.0; moving stuff around is perhaps better left for a later release
(which could also include a Python binding).

Index: tokenizer.h
===================================================================
--- tokenizer.h (revision 514)
+++ tokenizer.h (working copy)
@@ -54,10 +54,10 @@
        const char* str;
 };

-extern struct tok_state *PyTokenizer_FromString(const char *);
-extern struct tok_state *PyTokenizer_FromFile(FILE *, char *, char *);
-extern void PyTokenizer_Free(struct tok_state *);
-extern int PyTokenizer_Get(struct tok_state *, char **, char **);
+PyAPI_FUNC(struct tok_state *) PyTokenizer_FromString(const char *);
+PyAPI_FUNC(struct tok_state *) PyTokenizer_FromFile(FILE *, char *,
char *);
+PyAPI_FUNC(void) PyTokenizer_Free(struct tok_state *);
+PyAPI_FUNC(int) PyTokenizer_Get(struct tok_state *, char **, char **);

 #ifdef __cplusplus
 }

----------
components: Interpreter Core
messages: 69650
nosy: effbot
severity: normal
status: open
title: make built-in tokenizer available via Python C API
type: feature request
versions: Python 2.6, Python 2.7, Python 3.0

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3353>
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