wmii

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fmtdef.h (3418B)


      1 /*
      2  * The authors of this software are Rob Pike and Ken Thompson.
      3  *              Copyright (c) 2002 by Lucent Technologies.
      4  * Permission to use, copy, modify, and distribute this software for any
      5  * purpose without fee is hereby granted, provided that this entire notice
      6  * is included in all copies of any software which is or includes a copy
      7  * or modification of this software and in all copies of the supporting
      8  * documentation for such software.
      9  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
     10  * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
     11  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
     12  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
     13  */
     14 
     15 /*
     16  * dofmt -- format to a buffer
     17  * the number of characters formatted is returned,
     18  * or -1 if there was an error.
     19  * if the buffer is ever filled, flush is called.
     20  * it should reset the buffer and return whether formatting should continue.
     21  */
     22 
     23 typedef int (*Fmts)(Fmt*);
     24 
     25 typedef struct Quoteinfo Quoteinfo;
     26 struct Quoteinfo
     27 {
     28 	int	quoted;		/* if set, string must be quoted */
     29 	int	nrunesin;	/* number of input runes that can be accepted */
     30 	int	nbytesin;	/* number of input bytes that can be accepted */
     31 	int	nrunesout;	/* number of runes that will be generated */
     32 	int	nbytesout;	/* number of bytes that will be generated */
     33 };
     34 
     35 /* Edit .+1,/^$/ |cfn |grep -v static | grep __ */
     36 double       __Inf(int sign);
     37 double       __NaN(void);
     38 int          __badfmt(Fmt *f);
     39 int          __charfmt(Fmt *f);
     40 int          __countfmt(Fmt *f);
     41 int          __efgfmt(Fmt *fmt);
     42 int          __errfmt(Fmt *f);
     43 int          __flagfmt(Fmt *f);
     44 int          __fmtFdFlush(Fmt *f);
     45 int          __fmtcpy(Fmt *f, const void *vm, int n, int sz);
     46 void*        __fmtdispatch(Fmt *f, const void *fmt, int isrunes);
     47 void *       __fmtflush(Fmt *f, void *t, int len);
     48 void         __fmtlock(void);
     49 int          __fmtpad(Fmt *f, int n);
     50 double       __fmtpow10(int n);
     51 int          __fmtrcpy(Fmt *f, const void *vm, int n);
     52 void         __fmtunlock(void);
     53 int          __ifmt(Fmt *f);
     54 int          __isInf(double d, int sign);
     55 int          __isNaN(double d);
     56 int          __needsep(int *ndig, char **grouping);
     57 int          __needsquotes(char *s, int *quotelenp);
     58 int          __percentfmt(Fmt *f);
     59 void         __quotesetup(char *s, Rune *r, int nin, int nout, Quoteinfo *q, int sharp, int runesout);
     60 int          __quotestrfmt(int runesin, Fmt *f);
     61 int          __rfmtpad(Fmt *f, int n);
     62 int          __runefmt(Fmt *f);
     63 int          __runeneedsquotes(Rune *r, int *quotelenp);
     64 int          __runesfmt(Fmt *f);
     65 int          __strfmt(Fmt *f);
     66 
     67 #define FMTCHAR(f, t, s, c)\
     68 	do{\
     69 	if(t + 1 > (char*)s){\
     70 		t = __fmtflush(f, t, 1);\
     71 		if(t != nil)\
     72 			s = f->stop;\
     73 		else\
     74 			return -1;\
     75 	}\
     76 	*t++ = c;\
     77 	}while(0)
     78 
     79 #define FMTRCHAR(f, t, s, c)\
     80 	do{\
     81 	if(t + 1 > (Rune*)s){\
     82 		t = __fmtflush(f, t, sizeof(Rune));\
     83 		if(t != nil)\
     84 			s = f->stop;\
     85 		else\
     86 			return -1;\
     87 	}\
     88 	*t++ = c;\
     89 	}while(0)
     90 
     91 #define FMTRUNE(f, t, s, r)\
     92 	do{\
     93 	Rune _rune;\
     94 	int _runelen;\
     95 	if(t + UTFmax > (char*)s && t + (_runelen = runelen(r)) > (char*)s){\
     96 		t = __fmtflush(f, t, _runelen);\
     97 		if(t != nil)\
     98 			s = f->stop;\
     99 		else\
    100 			return -1;\
    101 	}\
    102 	if(r < Runeself)\
    103 		*t++ = r;\
    104 	else{\
    105 		_rune = r;\
    106 		t += runetochar(t, &_rune);\
    107 	}\
    108 	}while(0)
    109 
    110 #ifndef va_copy
    111 #	define va_copy(a,b) (a) = (b)
    112 #endif
    113