1 /* Copyright (c) 2002-2006 Lucent Technologies; see LICENSE */ 2 3 /* 4 * dofmt -- format to a buffer 5 * the number of characters formatted is returned, 6 * or -1 if there was an error. 7 * if the buffer is ever filled, flush is called. 8 * it should reset the buffer and return whether formatting should continue. 9 */ 10 11 typedef int (*Fmts)(Fmt*); 12 13 typedef struct Quoteinfo Quoteinfo; 14 struct Quoteinfo 15 { 16 int quoted; /* if set, string must be quoted */ 17 int nrunesin; /* number of input runes that can be accepted */ 18 int nbytesin; /* number of input bytes that can be accepted */ 19 int nrunesout; /* number of runes that will be generated */ 20 int nbytesout; /* number of bytes that will be generated */ 21 }; 22 23 /* Edit .+1,/^$/ |cfn |grep -v static | grep __ */ 24 double __Inf(int sign); 25 double __NaN(void); 26 int __badfmt(Fmt *f); 27 int __charfmt(Fmt *f); 28 int __countfmt(Fmt *f); 29 int __efgfmt(Fmt *fmt); 30 int __errfmt(Fmt *f); 31 int __flagfmt(Fmt *f); 32 int __fmtFdFlush(Fmt *f); 33 int __fmtcpy(Fmt *f, const void *vm, int n, int sz); 34 void* __fmtdispatch(Fmt *f, void *fmt, int isrunes); 35 void * __fmtflush(Fmt *f, void *t, int len); 36 void __fmtlock(void); 37 int __fmtpad(Fmt *f, int n); 38 double __fmtpow10(int n); 39 int __fmtrcpy(Fmt *f, const void *vm, int n); 40 void __fmtunlock(void); 41 int __ifmt(Fmt *f); 42 int __isInf(double d, int sign); 43 int __isNaN(double d); 44 int __needsep(int*, char**); 45 int __needsquotes(char *s, int *quotelenp); 46 int __percentfmt(Fmt *f); 47 void __quotesetup(char *s, Rune *r, int nin, int nout, Quoteinfo *q, int sharp, int runesout); 48 int __quotestrfmt(int runesin, Fmt *f); 49 int __rfmtpad(Fmt *f, int n); 50 int __runefmt(Fmt *f); 51 int __runeneedsquotes(Rune *r, int *quotelenp); 52 int __runesfmt(Fmt *f); 53 int __strfmt(Fmt *f); 54 55 #define FMTCHAR(f, t, s, c)\ 56 do{\ 57 if(t + 1 > (char*)s){\ 58 t = (char*)__fmtflush(f, t, 1);\ 59 if(t != nil)\ 60 s = (char*)f->stop;\ 61 else\ 62 return -1;\ 63 }\ 64 *t++ = c;\ 65 }while(0) 66 67 #define FMTRCHAR(f, t, s, c)\ 68 do{\ 69 if(t + 1 > (Rune*)s){\ 70 t = (Rune*)__fmtflush(f, t, sizeof(Rune));\ 71 if(t != nil)\ 72 s = (Rune*)f->stop;\ 73 else\ 74 return -1;\ 75 }\ 76 *t++ = c;\ 77 }while(0) 78 79 #define FMTRUNE(f, t, s, r)\ 80 do{\ 81 Rune _rune;\ 82 int _runelen;\ 83 if(t + UTFmax > (char*)s && t + (_runelen = runelen(r)) > (char*)s){\ 84 t = (char*)__fmtflush(f, t, _runelen);\ 85 if(t != nil)\ 86 s = (char*)f->stop;\ 87 else\ 88 return -1;\ 89 }\ 90 if(r < Runeself)\ 91 *t++ = r;\ 92 else{\ 93 _rune = r;\ 94 t += runetochar(t, &_rune);\ 95 }\ 96 }while(0) 97 98 #ifdef va_copy 99 # define VA_COPY(a,b) va_copy(a,b) 100 # define VA_END(a) va_end(a) 101 #else 102 # define VA_COPY(a,b) (a) = (b) 103 # define VA_END(a) 104 #endif 105 106