-#ifndef _PDCLIB_INT_H
-#define _PDCLIB_INT_H
+#ifndef __PDCLIB_INT_H
+#define __PDCLIB_INT_H __PDCLIB_INT_H
/* PDCLib internal integer logic <_PDCLIB_int.h>
void (*func)( void );
};
-/* Structures required by malloc(), realloc(), and free(). */
-struct _PDCLIB_headnode_t
-{
- struct _PDCLIB_memnode_t * first;
- struct _PDCLIB_memnode_t * last;
-};
-
-struct _PDCLIB_memnode_t
-{
- _PDCLIB_size_t size;
- struct _PDCLIB_memnode_t * next;
-};
-
-/* Status structure required by _PDCLIB_print(). */
-struct _PDCLIB_status_t
-{
- int base; /* base to which the value shall be converted */
- _PDCLIB_int_fast32_t flags; /* flags and length modifiers */
- unsigned n; /* print: maximum characters to be written */
- /* scan: number matched conversion specifiers */
- unsigned i; /* number of characters read/written */
- unsigned current;/* chars read/written in the CURRENT conversion */
- char * s; /* *sprintf(): target buffer */
- /* *sscanf(): source string */
- unsigned width; /* specified field width */
- int prec; /* specified field precision */
- struct _PDCLIB_file_t * stream; /* *fprintf() / *fscanf() stream */
- _PDCLIB_va_list arg; /* argument stack */
-};
-
/* -------------------------------------------------------------------------- */
/* Declaration of helper functions (implemented in functions/_PDCLIB). */
/* -------------------------------------------------------------------------- */
extern char _PDCLIB_digits[];
extern char _PDCLIB_Xdigits[];
-/* The worker for all printf() type of functions. The pointer spec should point
- to the introducing '%' of a conversion specifier. The status structure is to
- be that of the current printf() function, of which the members n, s, stream
- and arg will be preserved; i will be updated; and all others will be trashed
- by the function.
- Returns a pointer to the first character not parsed as conversion specifier.
-*/
-const char * _PDCLIB_print( const char * spec, struct _PDCLIB_status_t * status );
-
-/* The worker for all scanf() type of functions. The pointer spec should point
- to the introducing '%' of a conversion specifier. The status structure is to
- be that of the current scanf() function, of which the member stream will be
- preserved; n, i, and s will be updated; and all others will be trashed by
- the function.
- Returns a pointer to the first character not parsed as conversion specifier,
- or NULL in case of error.
- FIXME: Should distinguish between matching and input error
-*/
-const char * _PDCLIB_scan( const char * spec, struct _PDCLIB_status_t * status );
+/* -------------------------------------------------------------------------- */
+/* locale / wchar / uchar */
+/* -------------------------------------------------------------------------- */
-/* Parsing any fopen() style filemode string into a number of flags. */
-unsigned int _PDCLIB_filemode( const char * mode );
+#ifndef __cplusplus
+typedef _PDCLIB_uint16_t _PDCLIB_char16_t;
+typedef _PDCLIB_uint32_t _PDCLIB_char32_t;
+#else
+typedef char16_t _PDCLIB_char16_t;
+typedef char32_t _PDCLIB_char32_t;
+#endif
-/* Sanity checking and preparing of read buffer, should be called first thing
- by any stdio read-data function.
- Returns 0 on success, EOF on error.
- On error, EOF / error flags and errno are set appropriately.
-*/
-int _PDCLIB_prepread( struct _PDCLIB_file_t * stream );
+typedef struct _PDCLIB_mbstate {
+ union {
+ /* Is this the best way to represent this? Is this big enough? */
+ _PDCLIB_uint64_t _St64[15];
+ _PDCLIB_uint32_t _St32[31];
+ _PDCLIB_uint16_t _St16[62];
+ unsigned char _StUC[124];
+ signed char _StSC[124];
+ char _StC [124];
+ };
-/* Sanity checking, should be called first thing by any stdio write-data
- function.
- Returns 0 on success, EOF on error.
- On error, error flags and errno are set appropriately.
-*/
-int _PDCLIB_prepwrite( struct _PDCLIB_file_t * stream );
+ /* c16/related functions: Surrogate storage
+ *
+ * If zero, no surrogate pending. If nonzero, surrogate.
+ */
+ _PDCLIB_uint16_t _Surrogate;
+
+ /* In cases where the underlying codec is capable of regurgitating a
+ * character without consuming any extra input (e.g. a surrogate pair in a
+ * UCS-4 to UTF-16 conversion) then these fields are used to track that
+ * state. In particular, they are used to buffer/fake the input for mbrtowc
+ * and similar functions.
+ *
+ * See _PDCLIB_encoding.h for values of _PendState and the resultant value
+ * in _PendChar.
+ */
+ unsigned char _PendState;
+ char _PendChar;
+} _PDCLIB_mbstate_t;
-/* Closing all streams on program exit */
-void _PDCLIB_closeall( void );
+typedef struct _PDCLIB_charcodec *_PDCLIB_charcodec_t;
+typedef struct _PDCLIB_locale *_PDCLIB_locale_t;
+typedef struct lconv _PDCLIB_lconv_t;
+
+_PDCLIB_size_t _PDCLIB_mb_cur_max( void );
/* -------------------------------------------------------------------------- */
-/* errno */
+/* stdio */
/* -------------------------------------------------------------------------- */
-/* If PDCLib would call its error number "errno" directly, there would be no way
- to catch its value from underlying system calls that also use it (i.e., POSIX
- operating systems). That is why we use an internal name, providing a means to
- access it through <errno.h>.
-*/
-extern int _PDCLIB_errno;
-
-/* A mechanism for delayed evaluation. (Not sure if this is really necessary, so
- no detailed documentation on the "why".)
-*/
-int * _PDCLIB_errno_func( void ) _PDCLIB_nothrow;
+/* Position / status structure for getpos() / fsetpos(). */
+typedef struct _PDCLIB_fpos
+{
+ _PDCLIB_int_fast64_t offset; /* File position offset */
+ _PDCLIB_mbstate_t mbs; /* Multibyte parsing state */
+} _PDCLIB_fpos_t;
-/* -------------------------------------------------------------------------- */
-/* <ctype.h> lookup tables */
-/* -------------------------------------------------------------------------- */
+typedef struct _PDCLIB_fileops _PDCLIB_fileops_t;
+typedef union _PDCLIB_fd _PDCLIB_fd_t;
+typedef struct _PDCLIB_file _PDCLIB_file_t; // Rename to _PDCLIB_FILE?
-#define _PDCLIB_CTYPE_ALPHA 1
-#define _PDCLIB_CTYPE_BLANK 2
-#define _PDCLIB_CTYPE_CNTRL 4
-#define _PDCLIB_CTYPE_GRAPH 8
-#define _PDCLIB_CTYPE_PUNCT 16
-#define _PDCLIB_CTYPE_SPACE 32
-#define _PDCLIB_CTYPE_LOWER 64
-#define _PDCLIB_CTYPE_UPPER 128
-#define _PDCLIB_CTYPE_DIGIT 256
-#define _PDCLIB_CTYPE_XDIGT 512
-
-struct _PDCLIB_ctype_t
+/* Status structure required by _PDCLIB_print(). */
+struct _PDCLIB_status_t
{
- _PDCLIB_uint16_t flags;
- unsigned char upper;
- unsigned char lower;
- unsigned char collation;
-};
+ /* XXX This structure is horrible now. scanf needs its own */
-/* -------------------------------------------------------------------------- */
-/* mbstate_t */
-/* -------------------------------------------------------------------------- */
+ int base; /* base to which the value shall be converted */
+ _PDCLIB_int_fast32_t flags; /* flags and length modifiers */
+ unsigned n; /* print: maximum characters to be written (snprintf) */
+ /* scan: number matched conversion specifiers */
+ unsigned i; /* number of characters read/written */
+ unsigned current;/* chars read/written in the CURRENT conversion */
+ unsigned width; /* specified field width */
+ int prec; /* specified field precision */
-typedef struct _PDCLIB_mbstate_t {
- _PDCLIB_uint32_t st[4];
-} _PDCLIB_mbstate_t;
+ union {
+ void * ctx; /* context for callback */
+ const char * s; /* input string for scanf */
+ };
+
+ union {
+ _PDCLIB_size_t ( *write ) ( void *p, const char *buf, _PDCLIB_size_t size );
+ _PDCLIB_file_t *stream; /* for scanf */
+ };
+ _PDCLIB_va_list arg; /* argument stack */
+};
#endif
projects / pdclib.old / blobdiff