sfl.h

短小精悍的C语言标准函数库。提供450个以上的可移植的算法和工具代码。

#   define NAMEFOLD     FALSE
#   define MSDOS_FILESYSTEM             /*  MS-DOS derivative                */
#else
#   error "No definitions for PATH constants"
#endif


/*- Capability definitions --------------------------------------------------*/
/*
 *  Defines zero or more of these symbols, for use in any non-portable
 *  code:
 *
 *  DOES_SOCKETS        We can use (at least some) BSD socket functions
 *  DOES_UID            We can use (at least some) uid access functions
 *  DOES_SNPRINTF       Supports snprintf and vsnprintf functions
 *  DOES_BSDSIGNALS     Supports BSD signal model (e.g. siginterrupt)
 */

#if (defined (AF_INET))
#   define DOES_SOCKETS                 /*  System supports BSD sockets      */
#else
#   undef  DOES_SOCKETS
#endif

#if (defined (__UNIX__) || defined (__VMS__) || defined (__OS2__))
#   define DOES_UID                     /*  System supports uid functions    */
#else
#   undef  DOES_UID
#   if (!defined (__DJGPP__))           /*  gid_t and uid_t already defined  */
        typedef int gid_t;              /*  Group id type                    */
        typedef int uid_t;              /*  User id type                     */
#   endif
#endif

#if (defined (__WINDOWS__) && (!defined (__LCC__)))
#   define DOES_SNPRINTF
#   define snprintf  _snprintf
#   define vsnprintf _vsnprintf
#elif (defined (__OS2__))
#   define DOES_SNPRINTF
#elif (defined (__UTYPE_SCO))
#   define DOES_SNPRINTF
#elif (defined (__UTYPE_LINUX))
#   define DOES_SNPRINTF
#else
#   undef DOES_SNPRINTF
#endif

/*  SunOS 5 (Solaris) does not support BSD-style signal handling             */
#if (!defined (__UTYPE_SUNSOLARIS))
#   define DOES_BSDSIGNALS
#else
#   undef  DOES_BSDSIGNALS
#endif


#endif                                  /*  Include PRELUDE.H                */
/*  ----------------------------------------------------------------<Prolog>-
    Name:       sflvers.h
    Title:      Define SFL version
    Package:    Standard Function Library (SFL)

    Written:    1996/11/21  iMatix SFL project team <[e-mail]>
    Revised:    1998/10/02

    Synopsis:   Defines the SFL_VERSION constant.
    Copyright:  Copyright (c) 1996-2000 iMatix Corporation
    License:    This is free software; you can redistribute it and/or modify
                it under the terms of the SFL License Agreement as provided
                in the file LICENSE.TXT.  This software is distributed in
                the hope that it will be useful, but without any warranty.
 ------------------------------------------------------------------</Prolog>-*/

#ifndef SFLVERS_INCLUDED               /*  Allow multiple inclusions        */
#define SFLVERS_INCLUDED

#define SFL_VERSION     "2.01"          /*  Main SFL version                 */

#endif
/*  ----------------------------------------------------------------<Prolog>-
    Name:       sflbits.h
    Title:      Large bitstring manipulation functions
    Package:    Standard Function Library (SFL)

    Written:    1996/05/14  iMatix SFL project team <[e-mail]>
    Revised:    1997/09/08

    Synopsis:   Provides operations to manipulate large bitstrings.  The
                bitstrings are compressed.  Intended for bit-based index
                techniques, where bitstrings can be millions of bits long.
                These functions are still in development; this is an early
                version that provides basic functionality.  Simple tests
                on large bitmaps with random filling show a cost of about
                3 bytes per bit, after compression.  This includes all the
                indexing information.

    Copyright:  Copyright (c) 1996-2000 iMatix Corporation
    License:    This is free software; you can redistribute it and/or modify
                it under the terms of the SFL License Agreement as provided
                in the file LICENSE.TXT.  This software is distributed in
                the hope that it will be useful, but without any warranty.
 ------------------------------------------------------------------</Prolog>-*/

#ifndef SFLBITS_INCLUDED               /*  Allow multiple inclusions        */
#define SFLBITS_INCLUDED

/*  Definitions                                                              */

#define BIT_DATASIZE    500             /*  Size of block data part          */
#define BIT_INDEXSIZE   BIT_DATASIZE/2  /*  Size of block index part         */
#define BIT_SECTSIZE    8192            /*  Size of one bitstring section    */
#define BIT_MAXBLOCKS   1024            /*  Max. size of bitstring           */
#define BIT_MAXBITS     16384000L       /*  Max. possible bit number         */

typedef struct {                        /*  Bitstring block                  */
    union {
        byte  data  [BIT_DATASIZE];     /*    Data record part               */
        dbyte index [BIT_INDEXSIZE];    /*    Index record part              */
    } block;
    dbyte left,                         /*    Pointer to left (index only)   */
          right;                        /*    Pointer to right (data too)    */
    int   size;                         /*    Size of data part              */
} BITBLOCK;

typedef struct {                        /*  Bitstring object                 */
    BITBLOCK
       *block [BIT_MAXBLOCKS];          /*  Table of allocated blocks        */
    int
        block_count;                    /*  How many allocated blocks        */
    dbyte
        free_list;                      /*  Block free list                  */
} BITS;

extern long bits_free_count;            /*  We count free() and malloc()     */
extern long bits_alloc_count;

/*  Function prototypes                                                      */

#ifdef __cplusplus
extern "C" {
#endif

int   bits_init    (void);
int   bits_term    (void);
BITS *bits_create  (void);
void  bits_destroy (BITS *bits);
int   bits_set     (BITS *bits, long bit);
int   bits_clear   (BITS *bits, long bit);
int   bits_test    (const BITS *bits, long bit);
int   bits_fput    (FILE *file, const BITS *bits);
BITS *bits_fget    (FILE *file);

#ifdef __cplusplus
}
#endif

#endif
/*  ----------------------------------------------------------------<Prolog>-
    Name:       sflcomp.h
    Title:      Compression functions
    Package:    Standard Function Library (SFL)

    Written:    1991/05/20  iMatix SFL project team <[e-mail]>
    Revised:    1997/09/08

    Synopsis:   Various compression/decompression functions.  The LZ-type
                algorith (LZRW1/KH) was originally written by Kurt Haenen
                <ghgaea8@blekul11> and made portable by P. Hintjens. This
                is a reasonable LZ/RLE algorithm, very fast, but about 30%
                less efficient than a ZIP-type algorithm in terms of space.
                The RLE algorithms are better suited to compressing sparse
                data.  The nulls variant is specifically tuned to data that
                consists mostly of binary zeroes.  The bits variant is
                tuned for compressing sparse bitmaps.

    Copyright:  Copyright (c) 1996-2000 iMatix Corporation
    License:    This is free software; you can redistribute it and/or modify
                it under the terms of the SFL License Agreement as provided
                in the file LICENSE.TXT.  This software is distributed in
                the hope that it will be useful, but without any warranty.
 ------------------------------------------------------------------</Prolog>-*/

#ifndef SFLCOMP_INCLUDED               /*  Allow multiple inclusions        */
#define SFLCOMP_INCLUDED

/*  Function prototypes                                                      */

#ifdef __cplusplus
extern "C" {
#endif

word compress_block (const byte *source, byte *dest, word source_size);
word expand_block   (const byte *source, byte *dest, word source_size);
word compress_rle   (      byte *source, byte *dest, word source_size);
word expand_rle     (const byte *source, byte *dest, word source_size);
word compress_nulls (      byte *source, byte *dest, word source_size);
word expand_nulls   (const byte *source, byte *dest, word source_size);
word compress_bits  (      byte *source, byte *dest, word source_size);
word expand_bits    (const byte *source, byte *dest, word source_size);

#ifdef __cplusplus
}
#endif

#endif
/*  ----------------------------------------------------------------<Prolog>-
    Name:       sflcons.h
    Title:      Console output functions
    Package:    Standard Function Library (SFL)

    Written:    1997/05/22  iMatix SFL project team <[e-mail]>
    Revised:    1998/02/08

    Synopsis:   Provides redirectable console output: use the coprintf() and
                coputs() calls instead of printf() and puts() in a real-time
                application.  Then, you can call console_send() to send all
                console output to a specified function.  This is a useful
                way to get output into -- for example -- a GUI window.

    Copyright:  Copyright (c) 1996-2000 iMatix Corporation
    License:    This is free software; you can redistribute it and/or modify
                it under the terms of the SFL License Agreement as provided
                in the file LICENSE.TXT.  This software is distributed in
                the hope that it will be useful, but without any warranty.
 ------------------------------------------------------------------</Prolog>-*/

#ifndef SFLCONS_INCLUDED               /*  Allow multiple inclusions        */
#define SFLCONS_INCLUDED


/*  Type definition for operator redirection function                        */

typedef void (CONSOLE_FCT) (const char *);


/*  Function prototypes                                                      */

#ifdef __cplusplus
extern "C" {
#endif

void  console_send        (CONSOLE_FCT *console_fct, Bool echo);
void  console_enable      (void);
void  console_disable     (void);
void  console_set_mode    (int CONSOLE_MODE);
int   console_capture     (const char *filename, char mode);
int   coputs              (const char *string);
int   coprintf            (const char *format, ...);
int   coputc              (int character);

#ifdef __cplusplus
}
#endif


/*  Constant definitions                                                     */

enum {
    CONSOLE_PLAIN,                      /*  Print as requested               */
    CONSOLE_DATETIME,                   /*  Prefix with date and time        */
    CONSOLE_TIME                        /*  Prefix with time only            */
};

#endif
/*  ----------------------------------------------------------------<Prolog>-
    Name:       sflconv.h
    Title:      Conversion functions
    Package:    Standard Function Library (SFL)

    Written:    1995/12/17  iMatix SFL project team <[e-mail]>
    Revised:    1998/10/19

    Synopsis:   These functions provide conversion between a set of datatypes
                (dates, times, numbers, Booleans) and external strings that
                represent the values.  The objective is to format datatypes
                for display or printing, and to validate and convert strings
                supplied by the user.  Conversion is controlled by a set of
                options specific to each datatype.  Additionally, dates and
                times may be formatted using picture strings.  The functions
                were written for use in an interactive 'forms' environment.

    Copyright:  Copyright (c) 1996-2000 iMatix Corporation
    License:    This is free software; you can redistribute it and/or modify
                it under the terms of the SFL License Agreement as provided
                in the file LICENSE.TXT.  This software is distributed in
                the hope that it will be useful, but without any warranty.
 ------------------------------------------------------------------</Prolog>-*/

#ifndef SFLCONV_INCLUDED               /*  Allow multiple inclusions        */
#define SFLCONV_INCLUDED

#ifdef __cplusplus
extern "C" {
#endif

char  *conv_number_str  (const char *number, int flags, char point,
                         int decimals, int decimal_format, int width,
                         int sign_format);
char  *conv_str_number  (const char *string, int flags, char point,
                         int decimals, int decimal_format, int width);
char  *conv_date_str    (long date, int flags, int format, int order,
                         char datesep, int width);
long   conv_str_date    (const char *string, int flags, int format, int order);
int    conv_str_day     (const char *day_name);

char  *conv_time_str    (long time, int flags, char timesep, int width);
long   conv_str_time    (const char *string);

char  *conv_bool_str    (Bool boolean, int format);
int    conv_str_bool    (const char *string);

char  *conv_time_pict   (long time, const char *picture);
char  *conv_date_pict   (long date, const char *picture);

/** Not Yet Implemented **/
char  *conv_float_str   (double number, int flags, int sign_format, char
                         point, int decimals, int decimal_format, int width
                        /*  Srcdoc: IGNORE                                   */
                        );
/** Not Yet Implemented **/
double conv_str_float   (char *string, int flags, int sign_format,
                         char point, int decimals, int decimal_format
                        /*  Srcdoc: IGNORE                                   */
                        );

#ifdef __cplusplus
}
#endif