cosmopolitan/third_party/python/Modules/sre.h
Justine Tunney 39bf41f4eb Make numerous improvements
- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands
2021-09-28 01:52:34 -07:00

85 lines
2.7 KiB
C

#ifndef SRE_INCLUDED
#define SRE_INCLUDED
#include "third_party/python/Include/object.h"
#include "third_party/python/Include/unicodeobject.h"
#include "third_party/python/Modules/sre_constants.h"
/* size of a code word (must be unsigned short or larger, and
large enough to hold a UCS4 character) */
#define SRE_CODE Py_UCS4
#if SIZEOF_SIZE_T > 4
#define SRE_MAXREPEAT (~(SRE_CODE)0)
#define SRE_MAXGROUPS ((~(SRE_CODE)0) / 2)
#else
#define SRE_MAXREPEAT ((SRE_CODE)PY_SSIZE_T_MAX)
#define SRE_MAXGROUPS ((SRE_CODE)PY_SSIZE_T_MAX / SIZEOF_SIZE_T / 2)
#endif
typedef struct {
PyObject_VAR_HEAD Py_ssize_t groups; /* must be first! */
PyObject* groupindex;
PyObject* indexgroup;
/* compatibility */
PyObject* pattern; /* pattern source (or None) */
int flags; /* flags used when compiling pattern source */
PyObject* weakreflist; /* List of weak references */
int isbytes; /* pattern type (1 - bytes, 0 - string, -1 - None) */
/* pattern code */
Py_ssize_t codesize;
SRE_CODE code[1];
} PatternObject;
#define PatternObject_GetCode(o) (((PatternObject*)(o))->code)
typedef struct {
PyObject_VAR_HEAD PyObject*
string; /* link to the target string (must be first) */
PyObject* regs; /* cached list of matching spans */
PatternObject* pattern; /* link to the regex (pattern) object */
Py_ssize_t pos, endpos; /* current target slice */
Py_ssize_t lastindex; /* last index marker seen by the engine (-1 if none) */
Py_ssize_t groups; /* number of groups (start/end marks) */
Py_ssize_t mark[1];
} MatchObject;
typedef unsigned int (*SRE_TOLOWER_HOOK)(unsigned int ch);
typedef struct SRE_REPEAT_T {
Py_ssize_t count;
SRE_CODE* pattern; /* points to REPEAT operator arguments */
void* last_ptr; /* helper to check for infinite loops */
struct SRE_REPEAT_T* prev; /* points to previous repeat context */
} SRE_REPEAT;
typedef struct {
/* string pointers */
void* ptr; /* current position (also end of current slice) */
void* beginning; /* start of original string */
void* start; /* start of current slice */
void* end; /* end of original string */
/* attributes for the match object */
PyObject* string;
Py_ssize_t pos, endpos;
int isbytes;
int charsize; /* character size */
/* registers */
Py_ssize_t lastindex;
Py_ssize_t lastmark;
void** mark;
/* dynamically allocated stuff */
char* data_stack;
size_t data_stack_size;
size_t data_stack_base;
Py_buffer buffer;
/* current repeat context */
SRE_REPEAT* repeat;
/* hooks */
SRE_TOLOWER_HOOK lower, upper;
} SRE_STATE;
typedef struct {
PyObject_HEAD PyObject* pattern;
SRE_STATE state;
} ScannerObject;
#endif /* SRE_INCLUDED */