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/* (C) Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005 Stijn van Dongen
* (C) Copyright 2006, 2007, 2008, 2009 Stijn van Dongen
*
* This file is part of tingea. You can redistribute and/or modify tingea
* under the terms of the GNU General Public License; either version 3 of the
* License or (at your option) any later version. You should have received a
* copy of the GPL along with tingea, in the file COPYING.
*/
#ifndef tingea_ting
#define tingea_ting
#include "types.h"
typedef struct
{ char *str
; dim len
; dim mxl
;
} mcxTing ;
/* **************************************************************************
* *
** Implementation notes (a few).
*
*
Synopsis
* This little module provides an objectified C-string compatible interface
* to strings.
* Some philosophy
* Do not mind the overhead of 2*sizeof(int) bytes per ting.
* If you have humongous amounts of small strings, use C-strings. Optionally
* you can do the needed char manipulation in a ting used as scratch-space
* using the ting interface, then create a normal string once you are done.
* Use mcxTinguish to avoid copying if needed.
* Feel free to use the str member with routines from <string.h>
* or perhaps from ding.h. Just remember to treat it as a const object
* when doing so.
* Applications
* Zoem is the macro processor that processes the zoem language. It is very
* string-heavy and its string operations are entirely based on the ting
* module.
* Caveat
* Nearly all routines return a NULL pointer to indicate malloc failure.
* Data structure
* str: array of chars
*
* len: length of string in str (excluding '\0')
* *(str+len) == '\0'
*
* mxl: current allocated number of writable char's (excluding '\0')
* Allocated amount is mxl+1
* *(str+mxl) == '\0' - but don't count on that.
* Notes
* mcxTingEnsure is the only routine allowed to fiddle with mxl.
* (apart from mcxTingInit which sets it to zero).
*
* Future idea
* mcxTingFinalize, (realloc to length)
*
* Routines marked `!' will NOT accept ting==NULL argument.
* Routines marked `#' should not be called other than by ting routines
*
* _ #Init _
* / \
* Ensure <--- #Instantiate
* / \ \
* Empty !Splice New,Write,Print,PrintAfter
* NWrite |
* |
* Append,Insert,Delete,PrintSplice
* TODO
* the library should be able to deal with embedded \0's. Really.
*/
/* **************************************************************************
* *
** Various instantiation routines.
*/
/* Accepts NULL argument.
* void arguments so that it can be used
* as callback.
*
* Should ordinarily *not* be used, unless
* you want to initialize a ting allocated
* on the frame stack.
*/
void* mcxTingInit
( void* ting
) ;
/* Accepts NULL argument.
* Should ordinarily *not* be used.
*/
mcxTing* mcxTingInstantiate
( mcxTing* dst_ting
, const char* str
) ;
/* Accepts NULL argument. Does not affect
* ting->str. used for preallocing, e.g. to
* prepare for successive calls of Append. (see
* also Empty).
*/
mcxTing* mcxTingEnsure
( mcxTing* ting
, dim length
) ;
/* Accepts NULL argument. The string part is
* set to the empty string.
* Can be used for preallocing.
*/
mcxTing* mcxTingEmpty
( mcxTing* ting
, dim length
) ;
/* **************************************************************************
* *
** Some freeing routines.
*/
/* Free members and shell struct
* You pass the address of a variable,
* loosely speaking.
*/
void mcxTingFree
( mcxTing **tingpp
) ;
/* Free members and shell struct
* Use with callbacks, e.g.
* for freeing hash with tings in one go.
*/
void mcxTingFree_v
( void *tingpp
) ;
/* Free members
* Use for freeing array of ting;
* e.g. as callback in mcxNFree.
*/
void mcxTingRelease
( void *ting
) ;
/* **************************************************************************
* *
** A bunch of user-land creation routines.
*/
/* accepts NULL argument, maps to empty string.
*/
mcxTing* mcxTingNew
( const char* str
) ;
/* accepts NULL argument, maps to empty string.
*/
mcxTing* mcxTingNNew
( const char* str
, dim n
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingWrite
( mcxTing* ting
, const char* str
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingNWrite
( mcxTing* ting
, const char* str
, dim n
) ;
/* usurps argument.
*/
mcxTing* mcxTingify
( char* str
) ;
/* destroys argument, returns str member.
*/
char* mcxTinguish
( mcxTing* ting
) ;
/* **************************************************************************
* *
** Appending, inserting, deleting, shrinking.
* Some can be used as creation routine (e.g. append).
*/
#define TING_INS_CENTER -3
#define TING_INS_OVERRUN -4
#define TING_INS_OVERWRITE -5
/*
* The offset argument can be negative, for subscripting from the end.
*
* The n_delete argument can be nonnegative, or one of
* TING_INS_CENTER center, (try to) overwrite without changing length.
* TING_INS_OVERRUN overwrite till the end.
* TING_INS_OVERWRITE (try to) overwrite without changing length.
*
* The n_copy argument is not magical like the previous two.
*
*/
/* does NOT accept NULL argument.
*/
mcxstatus mcxTingSplice
( mcxTing* ting
, const char* pstr
, ofs d_offset /* negative offset refers to end */
, ofs n_delete /* special modes as documented above */
, dim n_copy
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingInsert
( mcxTing* ting
, const char* str
, ofs offset
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingNInsert
( mcxTing* ting
, const char* str
, ofs offset /* of ting->str */
, dim length /* of str */
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingAppend
( mcxTing* ting
, const char* str
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingKAppend
( mcxTing* ting
, const char* str
, dim n
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingNAppend
( mcxTing* ting
, const char* str
, dim n
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingDelete
( mcxTing* ting
, ofs offset
, dim width
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingShrink
( mcxTing* ting
, ofs length
) ;
/* Fails only for memory reason */
mcxstatus mcxTingTackc
( mcxTing* ting
, unsigned char c
) ;
/* Fails if last char is not the same as c */
mcxstatus mcxTingTickc
( mcxTing* ting
, unsigned char c
) ;
/* **************************************************************************
* *
** A bunch of printf like routines.
*/
/* Accepts NULL argument.
*/
mcxTing* mcxTingPrint
( mcxTing* ting
, const char* fmt
, ...
)
#ifdef __GNUC__
__attribute__ ((format (printf, 2, 3)))
#endif
;
/* Accepts NULL argument.
*/
mcxTing* mcxTingPrintAfter
( mcxTing* dst
, const char* fmt
, ...
)
#ifdef __GNUC__
__attribute__ ((format (printf, 2, 3)))
#endif
;
/* Accepts NULL argument.
* same offset and delete interface as
* mcxTingSplice.
*/
mcxTing* mcxTingPrintSplice
( mcxTing* dst
, ofs offset
, ofs n_delete /* count of chars to delete, special modes */
, const char* fmt
, ...
)
#ifdef __GNUC__
__attribute__ ((format (printf, 4, 5)))
#endif
;
/* **************************************************************************
* *
** Miscellaneous.
*/
char* mcxTingStr
( const mcxTing* ting
) ;
char* mcxTingSubStr
( const mcxTing* ting
, ofs offset
, ofs length /* use -1 to indicate remainder of string */
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingRoman
( mcxTing* dst
, long x
, mcxbool ucase
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingInteger
( mcxTing* dst
, long x
) ;
/* accepts NULL argument.
*/
mcxTing* mcxTingDouble
( mcxTing* dst
, double x
, int decimals
) ;
/* **************************************************************************
* *
** Comparing.
*/
/* compare two mcxTing* pointers */
int mcxTingCmp
( const void* t1
, const void* t2
) ;
/* compare two mcxTing* pointers */
int mcxTingRevCmp
( const void* t1
, const void* t2
) ;
/* compare two mcxTing** pointers */
int mcxTingPCmp
( const void* t1
, const void* t2
) ;
/* compare two mcxTing** pointers */
int mcxTingPRevCmp
( const void* t1
, const void* t2
) ;
/* compare two mcxKV** pointers by key as mcxTing* */
int mcxPKeyTingCmp
( const void* k1
, const void* k2
) ;
/* compare two mcxKV** pointers by key as mcxTing* */
int mcxPKeyTingRevCmp
( const void* k1
, const void* k2
) ;
/* **************************************************************************
* *
** Hashing.
*/
u32 (*mcxTingHFieByName(const char* id))(const void* ting) ;
u32 mcxTingELFhash
( const void* ting
) ;
u32 mcxTingHash
( const void* ting
) ;
u32 mcxTingBJhash
( const void* ting
) ;
u32 mcxTingCThash
( const void* ting
) ;
u32 mcxTingDPhash
( const void* ting
) ;
u32 mcxTingBDBhash
( const void* ting
) ;
u32 mcxTingGEhash
( const void* ting
) ;
u32 mcxTingOAThash
( const void* ting
) ;
u32 mcxTingFNVhash
( const void* ting
) ;
u32 mcxTingSvDhash
( const void* ting
) ;
u32 mcxTingSvD2hash
( const void* ting
) ;
u32 mcxTingSvD1hash
( const void* ting
) ;
u32 mcxTingDJBhash
( const void* ting
) ;
#endif
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