mirror of
https://github.com/0intro/wmii
synced 2024-11-28 00:29:37 +03:00
[9libs] Sync with plan9port.
This commit is contained in:
Kris Maglione
parent
63d4079b8a
commit
ccb962b2ea
@ -27,10 +27,22 @@ struct Fmt{
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void *farg; /* to make flush a closure */
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int nfmt; /* num chars formatted so far */
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va_list args; /* args passed to dofmt */
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int r; /* % format Rune */
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Rune r; /* % format Rune */
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int width;
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int prec;
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unsigned long flags;
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char *decimal; /* decimal point; cannot be "" */
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/* For %'d */
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char *thousands; /* separator for thousands */
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/*
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* Each char is an integer indicating #digits before next separator. Values:
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* \xFF: no more grouping (or \x7F; defined to be CHAR_MAX in POSIX)
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* \x00: repeat previous indefinitely
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* \x**: count that many
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*/
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char *grouping; /* descriptor of separator placement */
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};
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enum{
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@ -40,7 +52,8 @@ enum{
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FmtSharp = FmtPrec << 1,
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FmtSpace = FmtSharp << 1,
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FmtSign = FmtSpace << 1,
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FmtZero = FmtSign << 1,
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FmtApost = FmtSign << 1,
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FmtZero = FmtApost << 1,
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FmtUnsigned = FmtZero << 1,
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FmtShort = FmtUnsigned << 1,
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FmtLong = FmtShort << 1,
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@ -121,6 +134,7 @@ double fmtcharstod(int(*f)(void*), void*);
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int fmtfdflush(Fmt*);
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int fmtfdinit(Fmt*, int fd, char *buf, int size);
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int fmtinstall(int, int (*f)(Fmt*));
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void fmtlocaleinit(Fmt*, char *decimal, char *thousands, char *grouping);
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int fmtprint(Fmt*, const char*, ...);
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int fmtrune(Fmt*, int);
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int fmtrunestrcpy(Fmt*, Rune*);
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@ -28,10 +28,6 @@ enum {
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GInvert = 1<<0,
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};
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enum {
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Runemax = (1 << (sizeof(Rune) * 8)) - 1,
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};
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#define utf8locale() (!strcmp(nl_langinfo(CODESET), "UTF-8"))
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#ifdef VARARGCK
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@ -1,14 +1,15 @@
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#ifndef _UTF_H_
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#define _UTF_H_ 1
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typedef unsigned short Rune; /* 16 bits */
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typedef unsigned int Rune; /* 32 bits */
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enum
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{
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UTFmax = 3, /* maximum bytes per rune */
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UTFmax = 4, /* maximum bytes per rune */
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Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */
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Runeself = 0x80, /* rune and UTF sequences are the same (<) */
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Runeerror = 0xFFFD, /* decoding error in UTF */
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Runemax = 0x10FFFF /* maximum rune value */
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};
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/* Edit .+1,/^$/ | cfn $PLAN9/src/lib9/utf/?*.c | grep -v static |grep -v __ */
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@ -19,7 +20,7 @@ int islowerrune(Rune);
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int isspacerune(Rune);
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int istitlerune(Rune);
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int isupperrune(Rune);
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int runelen(Rune);
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int runelen(long);
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int runenlen(const Rune*, int);
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Rune* runestrcat(Rune*, const Rune*);
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Rune* runestrchr(const Rune*, Rune);
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@ -7,7 +7,7 @@ Bgetrune(Biobuf *bp)
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{
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int c, i;
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Rune rune;
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char str[4];
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char str[UTFmax];
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c = Bgetc(bp);
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if(c < Runeself) { /* one char */
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@ -123,13 +123,13 @@ Bopen(const char *name, int mode)
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return 0;
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case OREAD:
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f = open(name, OREAD);
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f = open(name, mode);
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if(f < 0)
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return 0;
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break;
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case OWRITE:
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f = creat(name, 0666);
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f = creat(name, mode);
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if(f < 0)
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return 0;
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}
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@ -6,7 +6,7 @@ int
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Bputrune(Biobuf *bp, long c)
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{
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Rune rune;
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char str[4];
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char str[UTFmax];
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int n;
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rune = c;
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@ -29,8 +29,11 @@ Bvprint(Biobuf *bp, const char *fmt, va_list arg)
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f.flush = fmtBflush;
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f.farg = bp;
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f.nfmt = 0;
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fmtlocaleinit(&f, nil, nil, nil);
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n = fmtvprint(&f, fmt, arg);
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bp->ocount = (char*)f.to - (char*)f.stop;
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if(n == 0)
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n = f.nfmt;
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return n;
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}
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@ -17,6 +17,7 @@ OBJ=\
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fmt\
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fmtfd\
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fmtfdflush\
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fmtlocale\
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fmtlock\
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fmtprint\
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fmtquote\
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@ -139,8 +139,10 @@ __fmtcpy(Fmt *f, const void *vm, int n, int sz)
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m = (char*)vm;
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me = m + sz;
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w = f->width;
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fl = f->flags;
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w = 0;
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if(fl & FmtWidth)
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w = f->width;
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if((fl & FmtPrec) && n > f->prec)
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n = f->prec;
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if(f->runes){
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@ -194,8 +196,10 @@ __fmtrcpy(Fmt *f, const void *vm, int n)
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int w;
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m = (Rune*)vm;
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w = f->width;
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fl = f->flags;
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w = 0;
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if(fl & FmtWidth)
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w = f->width;
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if((fl & FmtPrec) && n > f->prec)
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n = f->prec;
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if(f->runes){
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@ -324,10 +328,14 @@ __percentfmt(Fmt *f)
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int
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__ifmt(Fmt *f)
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{
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char buf[70], *p, *conv;
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char buf[140], *p, *conv;
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/* 140: for 64 bits of binary + 3-byte sep every 4 digits */
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uvlong vu;
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ulong u;
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int neg, base, i, n, fl, w, isv;
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int ndig, len, excess, bytelen;
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char *grouping;
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char *thousands;
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neg = 0;
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fl = f->flags;
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@ -366,21 +374,25 @@ __ifmt(Fmt *f)
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u = va_arg(f->args, int);
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}
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conv = "0123456789abcdef";
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grouping = "\4"; /* for hex, octal etc. (undefined by spec but nice) */
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thousands = f->thousands;
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switch(f->r){
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case 'd':
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case 'i':
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case 'u':
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base = 10;
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break;
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case 'x':
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base = 16;
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grouping = f->grouping;
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break;
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case 'X':
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base = 16;
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conv = "0123456789ABCDEF";
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/* fall through */
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case 'x':
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base = 16;
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thousands = ":";
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break;
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case 'b':
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base = 2;
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thousands = ":";
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break;
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case 'o':
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base = 8;
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@ -398,7 +410,11 @@ __ifmt(Fmt *f)
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}
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}
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p = buf + sizeof buf - 1;
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n = 0;
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n = 0; /* in runes */
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excess = 0; /* number of bytes > number runes */
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ndig = 0;
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len = utflen(thousands);
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bytelen = strlen(thousands);
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if(isv){
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while(vu){
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i = vu % base;
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@ -407,6 +423,12 @@ __ifmt(Fmt *f)
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*p-- = ',';
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n++;
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}
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if((fl & FmtApost) && __needsep(&ndig, &grouping)){
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n += len;
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excess += bytelen - len;
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p -= bytelen;
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memmove(p+1, thousands, bytelen);
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}
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*p-- = conv[i];
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n++;
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}
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@ -418,16 +440,47 @@ __ifmt(Fmt *f)
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*p-- = ',';
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n++;
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}
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if((fl & FmtApost) && __needsep(&ndig, &grouping)){
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n += len;
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excess += bytelen - len;
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p -= bytelen;
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memmove(p+1, thousands, bytelen);
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}
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*p-- = conv[i];
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n++;
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}
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}
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if(n == 0){
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/*
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* "The result of converting a zero value with
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* a precision of zero is no characters." - ANSI
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*
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* "For o conversion, # increases the precision, if and only if
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* necessary, to force the first digit of the result to be a zero
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* (if the value and precision are both 0, a single 0 is printed)." - ANSI
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*/
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if(!(fl & FmtPrec) || f->prec != 0 || (f->r == 'o' && (fl & FmtSharp))){
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*p-- = '0';
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n = 1;
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if(fl & FmtApost)
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__needsep(&ndig, &grouping);
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}
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/*
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* Zero values don't get 0x.
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*/
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if(f->r == 'x' || f->r == 'X')
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fl &= ~FmtSharp;
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}
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for(w = f->prec; n < w && p > buf+3; n++){
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if((fl & FmtApost) && __needsep(&ndig, &grouping)){
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n += len;
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excess += bytelen - len;
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p -= bytelen;
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memmove(p+1, thousands, bytelen);
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}
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for(w = f->prec; n < w && p > buf+3; n++)
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*p-- = '0';
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}
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if(neg || (fl & (FmtSign|FmtSpace)))
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n++;
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if(fl & FmtSharp){
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@ -441,9 +494,19 @@ __ifmt(Fmt *f)
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}
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}
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if((fl & FmtZero) && !(fl & (FmtLeft|FmtPrec))){
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for(w = f->width; n < w && p > buf+3; n++)
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w = 0;
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if(fl & FmtWidth)
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w = f->width;
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for(; n < w && p > buf+3; n++){
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if((fl & FmtApost) && __needsep(&ndig, &grouping)){
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n += len;
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excess += bytelen - len;
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p -= bytelen;
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memmove(p+1, thousands, bytelen);
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}
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*p-- = '0';
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f->width = 0;
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}
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f->flags &= ~FmtWidth;
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}
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if(fl & FmtSharp){
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if(base == 16)
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@ -458,7 +521,7 @@ __ifmt(Fmt *f)
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else if(fl & FmtSpace)
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*p-- = ' ';
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f->flags &= ~FmtPrec;
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return __fmtcpy(f, p + 1, n, n);
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return __fmtcpy(f, p + 1, n, n + excess);
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}
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int
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@ -499,6 +562,9 @@ __flagfmt(Fmt *f)
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case '#':
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f->flags |= FmtSharp;
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break;
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case '\'':
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f->flags |= FmtApost;
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break;
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case ' ':
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f->flags |= FmtSpace;
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break;
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@ -526,12 +592,13 @@ __flagfmt(Fmt *f)
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int
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__badfmt(Fmt *f)
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{
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char x[3];
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char x[2+UTFmax];
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int n;
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x[0] = '%';
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x[1] = f->r;
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x[2] = '%';
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f->prec = 3;
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__fmtcpy(f, (const void*)x, 3, 3);
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n = 1 + runetochar(x+1, &f->r);
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x[n++] = '%';
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f->prec = n;
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__fmtcpy(f, (const void*)x, n, n);
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return 0;
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}
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@ -19,6 +19,7 @@
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/* format the output into f->to and return the number of characters fmted */
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/* BUG: THIS FILE IS NOT UPDATED TO THE NEW SPEC */
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int
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dorfmt(Fmt *f, const Rune *fmt)
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{
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@ -30,8 +31,8 @@ dorfmt(Fmt *f, const Rune *fmt)
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nfmt = f->nfmt;
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for(;;){
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if(f->runes){
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rt = f->to;
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rs = f->stop;
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rt = (Rune*)f->to;
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rs = (Rune*)f->stop;
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while((r = *fmt++) && r != '%'){
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FMTRCHAR(f, rt, rs, r);
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}
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@ -41,8 +42,8 @@ dorfmt(Fmt *f, const Rune *fmt)
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return f->nfmt - nfmt;
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f->stop = rs;
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}else{
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t = f->to;
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s = f->stop;
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t = (char*)f->to;
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s = (char*)f->stop;
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while((r = *fmt++) && r != '%'){
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FMTRUNE(f, t, f->stop, r);
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}
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@ -53,8 +54,9 @@ dorfmt(Fmt *f, const Rune *fmt)
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f->stop = s;
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}
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fmt = __fmtdispatch(f, (Rune*)fmt, 1);
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fmt = (Rune*)__fmtdispatch(f, (Rune*)fmt, 1);
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if(fmt == nil)
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return -1;
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}
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return 0; /* not reached */
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}
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@ -18,8 +18,10 @@
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#include <stdlib.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include <fmt.h>
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#include <assert.h>
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#include "plan9.h"
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#include "fmt.h"
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#include "fmtdef.h"
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enum
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@ -52,7 +54,7 @@ static double pows10[] =
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1e140, 1e141, 1e142, 1e143, 1e144, 1e145, 1e146, 1e147, 1e148, 1e149,
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1e150, 1e151, 1e152, 1e153, 1e154, 1e155, 1e156, 1e157, 1e158, 1e159,
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};
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#define npows10 ((int)(sizeof(pows10)/sizeof(pows10[0])))
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#define pow10(x) fmtpow10(x)
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static double
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@ -63,330 +65,615 @@ pow10(int n)
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neg = 0;
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if(n < 0){
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if(n < DBL_MIN_10_EXP){
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return 0.;
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}
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neg = 1;
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n = -n;
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}else if(n > DBL_MAX_10_EXP){
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return HUGE_VAL;
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}
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if(n < (int)(sizeof(pows10)/sizeof(pows10[0])))
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if(n < npows10)
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d = pows10[n];
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else{
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d = pows10[sizeof(pows10)/sizeof(pows10[0]) - 1];
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d = pows10[npows10-1];
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for(;;){
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n -= sizeof(pows10)/sizeof(pows10[0]) - 1;
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if(n < (int)(sizeof(pows10)/sizeof(pows10[0]))){
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n -= npows10 - 1;
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if(n < npows10){
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d *= pows10[n];
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break;
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}
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d *= pows10[sizeof(pows10)/sizeof(pows10[0]) - 1];
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d *= pows10[npows10 - 1];
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}
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}
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if(neg){
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if(neg)
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return 1./d;
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}
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return d;
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}
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/*
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* add 1 to the decimal integer string a of length n.
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* if 99999 overflows into 10000, return 1 to tell caller
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* to move the virtual decimal point.
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*/
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static int
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xadd(char *a, int n, int v)
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xadd1(char *a, int n)
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{
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char *b;
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int c;
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if(n < 0 || n >= NSIGNIF)
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if(n < 0 || n > NSIGNIF)
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return 0;
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for(b = a+n; b >= a; b--) {
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c = *b + v;
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for(b = a+n-1; b >= a; b--) {
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c = *b + 1;
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if(c <= '9') {
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*b = c;
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return 0;
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}
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*b = '0';
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v = 1;
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}
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*a = '1'; /* overflow adding */
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/*
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* need to overflow adding digit.
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* shift number down and insert 1 at beginning.
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* decimal is known to be 0s or we wouldn't
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* have gotten this far. (e.g., 99999+1 => 00000)
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*/
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a[0] = '1';
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return 1;
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}
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/*
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* subtract 1 from the decimal integer string a.
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* if 10000 underflows into 09999, make it 99999
|
||||
* and return 1 to tell caller to move the virtual
|
||||
* decimal point. this way, xsub1 is inverse of xadd1.
|
||||
*/
|
||||
static int
|
||||
xsub(char *a, int n, int v)
|
||||
xsub1(char *a, int n)
|
||||
{
|
||||
char *b;
|
||||
int c;
|
||||
|
||||
for(b = a+n; b >= a; b--) {
|
||||
c = *b - v;
|
||||
if(n < 0 || n > NSIGNIF)
|
||||
return 0;
|
||||
for(b = a+n-1; b >= a; b--) {
|
||||
c = *b - 1;
|
||||
if(c >= '0') {
|
||||
if(c == '0' && b == a) {
|
||||
/*
|
||||
* just zeroed the top digit; shift everyone up.
|
||||
* decimal is known to be 9s or we wouldn't
|
||||
* have gotten this far. (e.g., 10000-1 => 09999)
|
||||
*/
|
||||
*b = '9';
|
||||
return 1;
|
||||
}
|
||||
*b = c;
|
||||
return 0;
|
||||
}
|
||||
*b = '9';
|
||||
v = 1;
|
||||
}
|
||||
*a = '9'; /* underflow subtracting */
|
||||
return 1;
|
||||
/*
|
||||
* can't get here. the number a is always normalized
|
||||
* so that it has a nonzero first digit.
|
||||
*/
|
||||
abort();
|
||||
}
|
||||
|
||||
/*
|
||||
* format exponent like sprintf(p, "e%+02d", e)
|
||||
*/
|
||||
static void
|
||||
xdtoa(Fmt *fmt, char *s2, double f)
|
||||
xfmtexp(char *p, int e, int ucase)
|
||||
{
|
||||
char s1[NSIGNIF+10];
|
||||
double g, h;
|
||||
int e, d, i, n;
|
||||
int c1, c2, c3, c4, ucase, sign, chr, prec;
|
||||
char se[9];
|
||||
int i;
|
||||
|
||||
prec = FDEFLT;
|
||||
if(fmt->flags & FmtPrec)
|
||||
prec = fmt->prec;
|
||||
if(prec > FDIGIT)
|
||||
prec = FDIGIT;
|
||||
if(__isNaN(f)) {
|
||||
strcpy(s2, "NaN");
|
||||
return;
|
||||
*p++ = ucase ? 'E' : 'e';
|
||||
if(e < 0) {
|
||||
*p++ = '-';
|
||||
e = -e;
|
||||
} else
|
||||
*p++ = '+';
|
||||
i = 0;
|
||||
while(e) {
|
||||
se[i++] = e % 10 + '0';
|
||||
e /= 10;
|
||||
}
|
||||
if(__isInf(f, 1)) {
|
||||
strcpy(s2, "+Inf");
|
||||
return;
|
||||
while(i < 2)
|
||||
se[i++] = '0';
|
||||
while(i > 0)
|
||||
*p++ = se[--i];
|
||||
*p++ = '\0';
|
||||
}
|
||||
if(__isInf(f, -1)) {
|
||||
strcpy(s2, "-Inf");
|
||||
return;
|
||||
}
|
||||
sign = 0;
|
||||
|
||||
/*
|
||||
* compute decimal integer m, exp such that:
|
||||
* f = m*10^exp
|
||||
* m is as short as possible with losing exactness
|
||||
* assumes special cases (NaN, +Inf, -Inf) have been handled.
|
||||
*/
|
||||
static void
|
||||
xdtoa(double f, char *s, int *exp, int *neg, int *ns)
|
||||
{
|
||||
int c, d, e2, e, ee, i, ndigit, oerrno;
|
||||
char tmp[NSIGNIF+10];
|
||||
double g;
|
||||
|
||||
oerrno = errno; /* in case strtod smashes errno */
|
||||
|
||||
/*
|
||||
* make f non-negative.
|
||||
*/
|
||||
*neg = 0;
|
||||
if(f < 0) {
|
||||
f = -f;
|
||||
sign++;
|
||||
}
|
||||
ucase = 0;
|
||||
chr = fmt->r;
|
||||
if(isupper(chr)) {
|
||||
ucase = 1;
|
||||
chr = tolower(chr);
|
||||
*neg = 1;
|
||||
}
|
||||
|
||||
e = 0;
|
||||
g = f;
|
||||
if(g != 0) {
|
||||
frexp(f, &e);
|
||||
e = e * .301029995664;
|
||||
if(e >= -150 && e <= +150) {
|
||||
d = 0;
|
||||
h = f;
|
||||
} else {
|
||||
d = e/2;
|
||||
h = f * pow10(-d);
|
||||
/*
|
||||
* must handle zero specially.
|
||||
*/
|
||||
if(f == 0){
|
||||
*exp = 0;
|
||||
s[0] = '0';
|
||||
s[1] = '\0';
|
||||
*ns = 1;
|
||||
return;
|
||||
}
|
||||
g = h * pow10(d-e);
|
||||
|
||||
/*
|
||||
* find g,e such that f = g*10^e.
|
||||
* guess 10-exponent using 2-exponent, then fine tune.
|
||||
*/
|
||||
frexp(f, &e2);
|
||||
e = (int)(e2 * .301029995664);
|
||||
g = f * pow10(-e);
|
||||
while(g < 1) {
|
||||
e--;
|
||||
g = h * pow10(d-e);
|
||||
g = f * pow10(-e);
|
||||
}
|
||||
while(g >= 10) {
|
||||
e++;
|
||||
g = h * pow10(d-e);
|
||||
}
|
||||
g = f * pow10(-e);
|
||||
}
|
||||
|
||||
/*
|
||||
* convert NSIGNIF digits and convert
|
||||
* back to get accuracy.
|
||||
* convert NSIGNIF digits as a first approximation.
|
||||
*/
|
||||
for(i=0; i<NSIGNIF; i++) {
|
||||
d = g;
|
||||
s1[i] = d + '0';
|
||||
d = (int)g;
|
||||
s[i] = d+'0';
|
||||
g = (g-d) * 10;
|
||||
}
|
||||
s1[i] = 0;
|
||||
s[i] = 0;
|
||||
|
||||
/*
|
||||
* try decimal rounding to eliminate 9s
|
||||
* adjust e because s is 314159... not 3.14159...
|
||||
*/
|
||||
c2 = prec + 1;
|
||||
if(chr == 'f')
|
||||
c2 += e;
|
||||
if(c2 >= NSIGNIF-2) {
|
||||
strcpy(s2, s1);
|
||||
d = e;
|
||||
s1[NSIGNIF-2] = '0';
|
||||
s1[NSIGNIF-1] = '0';
|
||||
sprint(s1+NSIGNIF, "e%d", e-NSIGNIF+1);
|
||||
g = strtod(s1, nil);
|
||||
if(g == f)
|
||||
goto found;
|
||||
if(xadd(s1, NSIGNIF-3, 1)) {
|
||||
e++;
|
||||
sprint(s1+NSIGNIF, "e%d", e-NSIGNIF+1);
|
||||
}
|
||||
g = strtod(s1, nil);
|
||||
if(g == f)
|
||||
goto found;
|
||||
strcpy(s1, s2);
|
||||
e = d;
|
||||
}
|
||||
e -= NSIGNIF-1;
|
||||
xfmtexp(s+NSIGNIF, e, 0);
|
||||
|
||||
/*
|
||||
* convert back so s1 gets exact answer
|
||||
* adjust conversion until strtod(s) == f exactly.
|
||||
*/
|
||||
for(;;) {
|
||||
sprint(s1+NSIGNIF, "e%d", e-NSIGNIF+1);
|
||||
g = strtod(s1, nil);
|
||||
for(i=0; i<10; i++) {
|
||||
g = fmtstrtod(s, nil);
|
||||
if(f > g) {
|
||||
if(xadd(s1, NSIGNIF-1, 1))
|
||||
if(xadd1(s, NSIGNIF)) {
|
||||
/* gained a digit */
|
||||
e--;
|
||||
xfmtexp(s+NSIGNIF, e, 0);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
if(f < g) {
|
||||
if(xsub(s1, NSIGNIF-1, 1))
|
||||
if(xsub1(s, NSIGNIF)) {
|
||||
/* lost a digit */
|
||||
e++;
|
||||
xfmtexp(s+NSIGNIF, e, 0);
|
||||
}
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
found:
|
||||
/*
|
||||
* sign
|
||||
* play with the decimal to try to simplify.
|
||||
*/
|
||||
d = 0;
|
||||
i = 0;
|
||||
if(sign)
|
||||
s2[d++] = '-';
|
||||
else if(fmt->flags & FmtSign)
|
||||
s2[d++] = '+';
|
||||
else if(fmt->flags & FmtSpace)
|
||||
s2[d++] = ' ';
|
||||
|
||||
/*
|
||||
* copy into final place
|
||||
* c1 digits of leading '0'
|
||||
* c2 digits from conversion
|
||||
* c3 digits of trailing '0'
|
||||
* c4 digits after '.'
|
||||
* bump last few digits up to 9 if we can
|
||||
*/
|
||||
c1 = 0;
|
||||
c2 = prec + 1;
|
||||
c3 = 0;
|
||||
c4 = prec;
|
||||
switch(chr) {
|
||||
default:
|
||||
if(xadd(s1, c2, 5))
|
||||
e++;
|
||||
for(i=NSIGNIF-1; i>=NSIGNIF-3; i--) {
|
||||
c = s[i];
|
||||
if(c != '9') {
|
||||
s[i] = '9';
|
||||
g = fmtstrtod(s, nil);
|
||||
if(g != f) {
|
||||
s[i] = c;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* add 1 in hopes of turning 9s to 0s
|
||||
*/
|
||||
if(s[NSIGNIF-1] == '9') {
|
||||
strcpy(tmp, s);
|
||||
ee = e;
|
||||
if(xadd1(tmp, NSIGNIF)) {
|
||||
ee--;
|
||||
xfmtexp(tmp+NSIGNIF, ee, 0);
|
||||
}
|
||||
g = fmtstrtod(tmp, nil);
|
||||
if(g == f) {
|
||||
strcpy(s, tmp);
|
||||
e = ee;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* bump last few digits down to 0 as we can.
|
||||
*/
|
||||
for(i=NSIGNIF-1; i>=NSIGNIF-3; i--) {
|
||||
c = s[i];
|
||||
if(c != '0') {
|
||||
s[i] = '0';
|
||||
g = fmtstrtod(s, nil);
|
||||
if(g != f) {
|
||||
s[i] = c;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* remove trailing zeros.
|
||||
*/
|
||||
ndigit = NSIGNIF;
|
||||
while(ndigit > 1 && s[ndigit-1] == '0'){
|
||||
e++;
|
||||
--ndigit;
|
||||
}
|
||||
s[ndigit] = 0;
|
||||
*exp = e;
|
||||
*ns = ndigit;
|
||||
errno = oerrno;
|
||||
}
|
||||
|
||||
#ifdef PLAN9PORT
|
||||
static char *special[] = { "NaN", "NaN", "+Inf", "+Inf", "-Inf", "-Inf" };
|
||||
#else
|
||||
static char *special[] = { "nan", "NAN", "inf", "INF", "-inf", "-INF" };
|
||||
#endif
|
||||
|
||||
int
|
||||
__efgfmt(Fmt *fmt)
|
||||
{
|
||||
char buf[NSIGNIF+10], *dot, *digits, *p, *s, suf[10], *t;
|
||||
double f;
|
||||
int c, chr, dotwid, e, exp, fl, ndigits, neg, newndigits;
|
||||
int pad, point, prec, realchr, sign, sufwid, ucase, wid, z1, z2;
|
||||
Rune r, *rs, *rt;
|
||||
|
||||
if(fmt->flags&FmtLong)
|
||||
f = va_arg(fmt->args, long double);
|
||||
else
|
||||
f = va_arg(fmt->args, double);
|
||||
|
||||
/*
|
||||
* extract formatting flags
|
||||
*/
|
||||
fl = fmt->flags;
|
||||
fmt->flags = 0;
|
||||
prec = FDEFLT;
|
||||
if(fl & FmtPrec)
|
||||
prec = fmt->prec;
|
||||
chr = fmt->r;
|
||||
ucase = 0;
|
||||
switch(chr) {
|
||||
case 'A':
|
||||
case 'E':
|
||||
case 'F':
|
||||
case 'G':
|
||||
chr += 'a'-'A';
|
||||
ucase = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* pick off special numbers.
|
||||
*/
|
||||
if(__isNaN(f)) {
|
||||
s = special[0+ucase];
|
||||
special:
|
||||
fmt->flags = fl & (FmtWidth|FmtLeft);
|
||||
return __fmtcpy(fmt, s, strlen(s), strlen(s));
|
||||
}
|
||||
if(__isInf(f, 1)) {
|
||||
s = special[2+ucase];
|
||||
goto special;
|
||||
}
|
||||
if(__isInf(f, -1)) {
|
||||
s = special[4+ucase];
|
||||
goto special;
|
||||
}
|
||||
|
||||
/*
|
||||
* get exact representation.
|
||||
*/
|
||||
digits = buf;
|
||||
xdtoa(f, digits, &exp, &neg, &ndigits);
|
||||
|
||||
/*
|
||||
* get locale's decimal point.
|
||||
*/
|
||||
dot = fmt->decimal;
|
||||
if(dot == nil)
|
||||
dot = ".";
|
||||
dotwid = utflen(dot);
|
||||
|
||||
/*
|
||||
* now the formatting fun begins.
|
||||
* compute parameters for actual fmt:
|
||||
*
|
||||
* pad: number of spaces to insert before/after field.
|
||||
* z1: number of zeros to insert before digits
|
||||
* z2: number of zeros to insert after digits
|
||||
* point: number of digits to print before decimal point
|
||||
* ndigits: number of digits to use from digits[]
|
||||
* suf: trailing suffix, like "e-5"
|
||||
*/
|
||||
realchr = chr;
|
||||
switch(chr){
|
||||
case 'g':
|
||||
/*
|
||||
* decide on 'e' of 'f' style convers
|
||||
* convert to at most prec significant digits. (prec=0 means 1)
|
||||
*/
|
||||
if(xadd(s1, c2, 5))
|
||||
e++;
|
||||
if(e >= -5 && e <= prec) {
|
||||
c1 = -e - 1;
|
||||
c4 = prec - e;
|
||||
chr = 'h'; // flag for 'f' style
|
||||
if(prec == 0)
|
||||
prec = 1;
|
||||
if(ndigits > prec) {
|
||||
if(digits[prec] >= '5' && xadd1(digits, prec))
|
||||
exp++;
|
||||
exp += ndigits-prec;
|
||||
ndigits = prec;
|
||||
}
|
||||
|
||||
/*
|
||||
* extra rules for %g (implemented below):
|
||||
* trailing zeros removed after decimal unless FmtSharp.
|
||||
* decimal point only if digit follows.
|
||||
*/
|
||||
|
||||
/* fall through to %e */
|
||||
default:
|
||||
case 'e':
|
||||
/*
|
||||
* one significant digit before decimal, no leading zeros.
|
||||
*/
|
||||
point = 1;
|
||||
z1 = 0;
|
||||
|
||||
/*
|
||||
* decimal point is after ndigits digits right now.
|
||||
* slide to be after first.
|
||||
*/
|
||||
e = exp + (ndigits-1);
|
||||
|
||||
/*
|
||||
* if this is %g, check exponent and convert prec
|
||||
*/
|
||||
if(realchr == 'g') {
|
||||
if(-4 <= e && e < prec)
|
||||
goto casef;
|
||||
prec--; /* one digit before decimal; rest after */
|
||||
}
|
||||
|
||||
/*
|
||||
* compute trailing zero padding or truncate digits.
|
||||
*/
|
||||
if(1+prec >= ndigits)
|
||||
z2 = 1+prec - ndigits;
|
||||
else {
|
||||
/*
|
||||
* truncate digits
|
||||
*/
|
||||
assert(realchr != 'g');
|
||||
newndigits = 1+prec;
|
||||
if(digits[newndigits] >= '5' && xadd1(digits, newndigits)) {
|
||||
/*
|
||||
* had 999e4, now have 100e5
|
||||
*/
|
||||
e++;
|
||||
}
|
||||
ndigits = newndigits;
|
||||
z2 = 0;
|
||||
}
|
||||
xfmtexp(suf, e, ucase);
|
||||
sufwid = strlen(suf);
|
||||
break;
|
||||
|
||||
casef:
|
||||
case 'f':
|
||||
if(xadd(s1, c2+e, 5))
|
||||
e++;
|
||||
c1 = -e;
|
||||
if(c1 > prec)
|
||||
c1 = c2;
|
||||
c2 += e;
|
||||
/*
|
||||
* determine where digits go with respect to decimal point
|
||||
*/
|
||||
if(ndigits+exp > 0) {
|
||||
point = ndigits+exp;
|
||||
z1 = 0;
|
||||
} else {
|
||||
point = 1;
|
||||
z1 = 1 + -(ndigits+exp);
|
||||
}
|
||||
|
||||
/*
|
||||
* %g specifies prec = number of significant digits
|
||||
* convert to number of digits after decimal point
|
||||
*/
|
||||
if(realchr == 'g')
|
||||
prec += z1 - point;
|
||||
|
||||
/*
|
||||
* compute trailing zero padding or truncate digits.
|
||||
*/
|
||||
if(point+prec >= z1+ndigits)
|
||||
z2 = point+prec - (z1+ndigits);
|
||||
else {
|
||||
/*
|
||||
* truncate digits
|
||||
*/
|
||||
assert(realchr != 'g');
|
||||
newndigits = point+prec - z1;
|
||||
if(newndigits < 0) {
|
||||
z1 += newndigits;
|
||||
newndigits = 0;
|
||||
} else if(newndigits == 0) {
|
||||
/* perhaps round up */
|
||||
if(digits[0] >= '5'){
|
||||
digits[0] = '1';
|
||||
newndigits = 1;
|
||||
goto newdigit;
|
||||
}
|
||||
} else if(digits[newndigits] >= '5' && xadd1(digits, newndigits)) {
|
||||
/*
|
||||
* digits was 999, is now 100; make it 1000
|
||||
*/
|
||||
digits[newndigits++] = '0';
|
||||
newdigit:
|
||||
/*
|
||||
* account for new digit
|
||||
*/
|
||||
if(z1) /* 0.099 => 0.100 or 0.99 => 1.00*/
|
||||
z1--;
|
||||
else /* 9.99 => 10.00 */
|
||||
point++;
|
||||
}
|
||||
z2 = 0;
|
||||
ndigits = newndigits;
|
||||
}
|
||||
sufwid = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* clean up c1 c2 and c3
|
||||
* if %g is given without FmtSharp, remove trailing zeros.
|
||||
* must do after truncation, so that e.g. print %.3g 1.001
|
||||
* produces 1, not 1.00. sorry, but them's the rules.
|
||||
*/
|
||||
if(c1 < 0)
|
||||
c1 = 0;
|
||||
if(c2 < 0)
|
||||
c2 = 0;
|
||||
if(c2 > NSIGNIF) {
|
||||
c3 = c2-NSIGNIF;
|
||||
c2 = NSIGNIF;
|
||||
if(realchr == 'g' && !(fl & FmtSharp)) {
|
||||
if(z1+ndigits+z2 >= point) {
|
||||
if(z1+ndigits < point)
|
||||
z2 = point - (z1+ndigits);
|
||||
else{
|
||||
z2 = 0;
|
||||
while(z1+ndigits > point && digits[ndigits-1] == '0')
|
||||
ndigits--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* copy digits
|
||||
* compute width of all digits and decimal point and suffix if any
|
||||
*/
|
||||
while(c1 > 0) {
|
||||
if(c1+c2+c3 == c4)
|
||||
s2[d++] = '.';
|
||||
s2[d++] = '0';
|
||||
c1--;
|
||||
}
|
||||
while(c2 > 0) {
|
||||
if(c2+c3 == c4)
|
||||
s2[d++] = '.';
|
||||
s2[d++] = s1[i++];
|
||||
c2--;
|
||||
}
|
||||
while(c3 > 0) {
|
||||
if(c3 == c4)
|
||||
s2[d++] = '.';
|
||||
s2[d++] = '0';
|
||||
c3--;
|
||||
}
|
||||
|
||||
/*
|
||||
* strip trailing '0' on g conv
|
||||
*/
|
||||
if(fmt->flags & FmtSharp) {
|
||||
if(0 == c4)
|
||||
s2[d++] = '.';
|
||||
} else
|
||||
if(chr == 'g' || chr == 'h') {
|
||||
for(n=d-1; n>=0; n--)
|
||||
if(s2[n] != '0')
|
||||
break;
|
||||
for(i=n; i>=0; i--)
|
||||
if(s2[i] == '.') {
|
||||
d = n;
|
||||
if(i != n)
|
||||
d++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if(chr == 'e' || chr == 'g') {
|
||||
if(ucase)
|
||||
s2[d++] = 'E';
|
||||
wid = z1+ndigits+z2;
|
||||
if(wid > point)
|
||||
wid += dotwid;
|
||||
else if(wid == point){
|
||||
if(fl & FmtSharp)
|
||||
wid += dotwid;
|
||||
else
|
||||
s2[d++] = 'e';
|
||||
c1 = e;
|
||||
if(c1 < 0) {
|
||||
s2[d++] = '-';
|
||||
c1 = -c1;
|
||||
} else
|
||||
s2[d++] = '+';
|
||||
if(c1 >= 100) {
|
||||
s2[d++] = c1/100 + '0';
|
||||
c1 = c1%100;
|
||||
point++; /* do not print any decimal point */
|
||||
}
|
||||
s2[d++] = c1/10 + '0';
|
||||
s2[d++] = c1%10 + '0';
|
||||
}
|
||||
s2[d] = 0;
|
||||
wid += sufwid;
|
||||
|
||||
/*
|
||||
* determine sign
|
||||
*/
|
||||
sign = 0;
|
||||
if(neg)
|
||||
sign = '-';
|
||||
else if(fl & FmtSign)
|
||||
sign = '+';
|
||||
else if(fl & FmtSpace)
|
||||
sign = ' ';
|
||||
if(sign)
|
||||
wid++;
|
||||
|
||||
/*
|
||||
* compute padding
|
||||
*/
|
||||
pad = 0;
|
||||
if((fl & FmtWidth) && fmt->width > wid)
|
||||
pad = fmt->width - wid;
|
||||
if(pad && !(fl & FmtLeft) && (fl & FmtZero)){
|
||||
z1 += pad;
|
||||
point += pad;
|
||||
pad = 0;
|
||||
}
|
||||
|
||||
static int
|
||||
floatfmt(Fmt *fmt, double f)
|
||||
{
|
||||
char s[FDIGIT+10];
|
||||
|
||||
xdtoa(fmt, s, f);
|
||||
fmt->flags &= FmtWidth|FmtLeft;
|
||||
__fmtcpy(fmt, s, strlen(s), strlen(s));
|
||||
/*
|
||||
* format the actual field. too bad about doing this twice.
|
||||
*/
|
||||
if(fmt->runes){
|
||||
if(pad && !(fl & FmtLeft) && __rfmtpad(fmt, pad) < 0)
|
||||
return -1;
|
||||
rt = (Rune*)fmt->to;
|
||||
rs = (Rune*)fmt->stop;
|
||||
if(sign)
|
||||
FMTRCHAR(fmt, rt, rs, sign);
|
||||
while(z1>0 || ndigits>0 || z2>0) {
|
||||
if(z1 > 0){
|
||||
z1--;
|
||||
c = '0';
|
||||
}else if(ndigits > 0){
|
||||
ndigits--;
|
||||
c = *digits++;
|
||||
}else{
|
||||
z2--;
|
||||
c = '0';
|
||||
}
|
||||
FMTRCHAR(fmt, rt, rs, c);
|
||||
if(--point == 0) {
|
||||
for(p = dot; *p; ){
|
||||
p += chartorune(&r, p);
|
||||
FMTRCHAR(fmt, rt, rs, r);
|
||||
}
|
||||
}
|
||||
}
|
||||
fmt->nfmt += rt - (Rune*)fmt->to;
|
||||
fmt->to = rt;
|
||||
if(sufwid && __fmtcpy(fmt, suf, sufwid, sufwid) < 0)
|
||||
return -1;
|
||||
if(pad && (fl & FmtLeft) && __rfmtpad(fmt, pad) < 0)
|
||||
return -1;
|
||||
}else{
|
||||
if(pad && !(fl & FmtLeft) && __fmtpad(fmt, pad) < 0)
|
||||
return -1;
|
||||
t = (char*)fmt->to;
|
||||
s = (char*)fmt->stop;
|
||||
if(sign)
|
||||
FMTCHAR(fmt, t, s, sign);
|
||||
while(z1>0 || ndigits>0 || z2>0) {
|
||||
if(z1 > 0){
|
||||
z1--;
|
||||
c = '0';
|
||||
}else if(ndigits > 0){
|
||||
ndigits--;
|
||||
c = *digits++;
|
||||
}else{
|
||||
z2--;
|
||||
c = '0';
|
||||
}
|
||||
FMTCHAR(fmt, t, s, c);
|
||||
if(--point == 0)
|
||||
for(p=dot; *p; p++)
|
||||
FMTCHAR(fmt, t, s, *p);
|
||||
}
|
||||
fmt->nfmt += t - (char*)fmt->to;
|
||||
fmt->to = t;
|
||||
if(sufwid && __fmtcpy(fmt, suf, sufwid, sufwid) < 0)
|
||||
return -1;
|
||||
if(pad && (fl & FmtLeft) && __fmtpad(fmt, pad) < 0)
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
__efgfmt(Fmt *f)
|
||||
{
|
||||
double d;
|
||||
|
||||
d = va_arg(f->args, double);
|
||||
return floatfmt(f, d);
|
||||
}
|
||||
|
||||
@ -40,6 +40,7 @@ static Convfmt knownfmt[] = {
|
||||
' ', __flagfmt,
|
||||
'#', __flagfmt,
|
||||
'%', __percentfmt,
|
||||
'\'', __flagfmt,
|
||||
'+', __flagfmt,
|
||||
',', __flagfmt,
|
||||
'-', __flagfmt,
|
||||
|
||||
@ -53,6 +53,7 @@ void __fmtunlock(void);
|
||||
int __ifmt(Fmt *f);
|
||||
int __isInf(double d, int sign);
|
||||
int __isNaN(double d);
|
||||
int __needsep(int *ndig, char **grouping);
|
||||
int __needsquotes(char *s, int *quotelenp);
|
||||
int __percentfmt(Fmt *f);
|
||||
void __quotesetup(char *s, Rune *r, int nin, int nout, Quoteinfo *q, int sharp, int runesout);
|
||||
|
||||
@ -41,6 +41,8 @@ fmtfdinit(Fmt *f, int fd, char *buf, int size)
|
||||
f->stop = buf + size;
|
||||
f->flush = __fmtFdFlush;
|
||||
f->farg = (void*)(uintptr_t)fd;
|
||||
f->flags = 0;
|
||||
f->nfmt = 0;
|
||||
fmtlocaleinit(f, nil, nil, nil);
|
||||
return 0;
|
||||
}
|
||||
|
||||
55
lib/libfmt/fmtlocale.c
Normal file
55
lib/libfmt/fmtlocale.c
Normal file
@ -0,0 +1,55 @@
|
||||
/* Copyright (c) 2004 Google Inc.; see LICENSE */
|
||||
|
||||
#include <stdarg.h>
|
||||
#include <string.h>
|
||||
#include "plan9.h"
|
||||
#include "fmt.h"
|
||||
#include "fmtdef.h"
|
||||
|
||||
/*
|
||||
* Fill in the internationalization stuff in the State structure.
|
||||
* For nil arguments, provide the sensible defaults:
|
||||
* decimal is a period
|
||||
* thousands separator is a comma
|
||||
* thousands are marked every three digits
|
||||
*/
|
||||
void
|
||||
fmtlocaleinit(Fmt *f, char *decimal, char *thousands, char *grouping)
|
||||
{
|
||||
if(decimal == nil || decimal[0] == '\0')
|
||||
decimal = ".";
|
||||
if(thousands == nil)
|
||||
thousands = ",";
|
||||
if(grouping == nil)
|
||||
grouping = "\3";
|
||||
f->decimal = decimal;
|
||||
f->thousands = thousands;
|
||||
f->grouping = grouping;
|
||||
}
|
||||
|
||||
/*
|
||||
* We are about to emit a digit in e.g. %'d. If that digit would
|
||||
* overflow a thousands (e.g.) grouping, tell the caller to emit
|
||||
* the thousands separator. Always advance the digit counter
|
||||
* and pointer into the grouping descriptor.
|
||||
*/
|
||||
int
|
||||
__needsep(int *ndig, char **grouping)
|
||||
{
|
||||
int group;
|
||||
|
||||
(*ndig)++;
|
||||
group = *(unsigned char*)*grouping;
|
||||
/* CHAR_MAX means no further grouping. \0 means we got the empty string */
|
||||
if(group == 0xFF || group == 0x7f || group == 0x00)
|
||||
return 0;
|
||||
if(*ndig > group){
|
||||
/* if we're at end of string, continue with this grouping; else advance */
|
||||
if((*grouping)[1] != '\0')
|
||||
(*grouping)++;
|
||||
*ndig = 1;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -120,8 +120,10 @@ qstrfmt(char *sin, Rune *rin, Quoteinfo *q, Fmt *f)
|
||||
rm = rin;
|
||||
rme = rm + q->nrunesin;
|
||||
|
||||
w = f->width;
|
||||
fl = f->flags;
|
||||
w = 0;
|
||||
if(fl & FmtWidth)
|
||||
w = f->width;
|
||||
if(f->runes){
|
||||
if(!(fl & FmtLeft) && __rfmtpad(f, w - q->nrunesout) < 0)
|
||||
return -1;
|
||||
@ -209,7 +211,7 @@ __quotestrfmt(int runesin, Fmt *f)
|
||||
outlen = (char*)f->stop - (char*)f->to;
|
||||
|
||||
__quotesetup(s, r, nin, outlen, &q, f->flags&FmtSharp, f->runes);
|
||||
//print("bytes in %d bytes out %d runes in %d runesout %d\n", q.nbytesin, q.nbytesout, q.nrunesin, q.nrunesout);
|
||||
/*print("bytes in %d bytes out %d runes in %d runesout %d\n", q.nbytesin, q.nbytesout, q.nrunesin, q.nrunesout); */
|
||||
|
||||
if(runesin){
|
||||
if(!q.quoted)
|
||||
|
||||
@ -23,5 +23,6 @@ fmtstrflush(Fmt *f)
|
||||
if(f->start == nil)
|
||||
return nil;
|
||||
*(char*)f->to = '\0';
|
||||
f->to = f->start;
|
||||
return (char*)f->start;
|
||||
}
|
||||
|
||||
@ -6,58 +6,67 @@
|
||||
*/
|
||||
|
||||
#include "plan9.h"
|
||||
#include <assert.h>
|
||||
#include "fmt.h"
|
||||
#include "fmtdef.h"
|
||||
|
||||
#if defined (__APPLE__) || (__powerpc__)
|
||||
#define _NEEDLL
|
||||
#endif
|
||||
|
||||
static uvlong uvnan = ((uvlong)0x7FF00000<<32)|0x00000001;
|
||||
static uvlong uvinf = ((uvlong)0x7FF00000<<32)|0x00000000;
|
||||
static uvlong uvneginf = ((uvlong)0xFFF00000<<32)|0x00000000;
|
||||
|
||||
/* gcc sees through the obvious casts. */
|
||||
static uvlong
|
||||
d2u(double d)
|
||||
{
|
||||
union {
|
||||
uvlong v;
|
||||
double d;
|
||||
} u;
|
||||
assert(sizeof(u.d) == sizeof(u.v));
|
||||
u.d = d;
|
||||
return u.v;
|
||||
}
|
||||
|
||||
static double
|
||||
u2d(uvlong v)
|
||||
{
|
||||
union {
|
||||
uvlong v;
|
||||
double d;
|
||||
} u;
|
||||
assert(sizeof(u.d) == sizeof(u.v));
|
||||
u.v = v;
|
||||
return u.d;
|
||||
}
|
||||
|
||||
double
|
||||
__NaN(void)
|
||||
{
|
||||
uvlong *p;
|
||||
|
||||
/* gcc complains about "return *(double*)&uvnan;" */
|
||||
p = &uvnan;
|
||||
return *(double*)p;
|
||||
return u2d(uvnan);
|
||||
}
|
||||
|
||||
int
|
||||
__isNaN(double d)
|
||||
{
|
||||
uvlong x;
|
||||
double *p;
|
||||
|
||||
p = &d;
|
||||
x = *(uvlong*)p;
|
||||
return (ulong)(x>>32)==0x7FF00000 && !__isInf(d, 0);
|
||||
x = d2u(d);
|
||||
/* IEEE 754: exponent bits 0x7FF and non-zero mantissa */
|
||||
return (x&uvinf) == uvinf && (x&~uvneginf) != 0;
|
||||
}
|
||||
|
||||
double
|
||||
__Inf(int sign)
|
||||
{
|
||||
uvlong *p;
|
||||
|
||||
if(sign < 0)
|
||||
p = &uvinf;
|
||||
else
|
||||
p = &uvneginf;
|
||||
return *(double*)p;
|
||||
return u2d(sign < 0 ? uvneginf : uvinf);
|
||||
}
|
||||
|
||||
int
|
||||
__isInf(double d, int sign)
|
||||
{
|
||||
uvlong x;
|
||||
double *p;
|
||||
|
||||
p = &d;
|
||||
x = *(uvlong*)p;
|
||||
x = d2u(d);
|
||||
if(sign == 0)
|
||||
return x==uvinf || x==uvneginf;
|
||||
else if(sign > 0)
|
||||
|
||||
@ -23,5 +23,6 @@ runefmtstrflush(Fmt *f)
|
||||
if(f->start == nil)
|
||||
return nil;
|
||||
*(Rune*)f->to = '\0';
|
||||
f->to = f->start;
|
||||
return f->start;
|
||||
}
|
||||
|
||||
@ -32,6 +32,7 @@ runevseprint(Rune *buf, Rune *e, const char *fmt, va_list args)
|
||||
f.farg = nil;
|
||||
f.nfmt = 0;
|
||||
va_copy(f.args,args);
|
||||
fmtlocaleinit(&f, nil, nil, nil);
|
||||
dofmt(&f, fmt);
|
||||
va_end(f.args);
|
||||
*(Rune*)f.to = '\0';
|
||||
|
||||
@ -63,6 +63,7 @@ runefmtstrinit(Fmt *f)
|
||||
f->flush = runeFmtStrFlush;
|
||||
f->farg = (void*)(uintptr_t)n;
|
||||
f->nfmt = 0;
|
||||
fmtlocaleinit(f, nil, nil, nil);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -32,6 +32,7 @@ runevsnprint(Rune *buf, int len, const char *fmt, va_list args)
|
||||
f.farg = nil;
|
||||
f.nfmt = 0;
|
||||
va_copy(f.args,args);
|
||||
fmtlocaleinit(&f, nil, nil, nil);
|
||||
dofmt(&f, fmt);
|
||||
va_end(f.args);
|
||||
*(Rune*)f.to = '\0';
|
||||
|
||||
@ -26,8 +26,11 @@ sprint(char *buf, const char *fmt, ...)
|
||||
/*
|
||||
* on PowerPC, the stack is near the top of memory, so
|
||||
* we must be sure not to overflow a 32-bit pointer.
|
||||
*
|
||||
* careful! gcc-4.2 assumes buf+len < buf can never be true and
|
||||
* optimizes the test away. casting to uintptr works around this bug.
|
||||
*/
|
||||
if(buf+len < buf)
|
||||
if((uintptr_t)buf+len < (uintptr_t)buf)
|
||||
len = -(uintptr_t)buf-1;
|
||||
|
||||
va_start(args, fmt);
|
||||
|
||||
@ -67,7 +67,7 @@ enum
|
||||
S4, /* _+#.# #S4 eS5 */
|
||||
S5, /* _+#.#e +S6 #S7 */
|
||||
S6, /* _+#.#e+ #S7 */
|
||||
S7, /* _+#.#e+# #S7 */
|
||||
S7 /* _+#.#e+# #S7 */
|
||||
};
|
||||
|
||||
static int xcmp(char*, char*);
|
||||
@ -239,7 +239,7 @@ fmtstrtod(const char *as, char **aas)
|
||||
/* close approx by naive conversion */
|
||||
mid[0] = 0;
|
||||
mid[1] = 1;
|
||||
for(i=0; c=a[i]; i++) {
|
||||
for(i=0; (c=a[i]) != '\0'; i++) {
|
||||
mid[0] = mid[0]*10 + (c-'0');
|
||||
mid[1] = mid[1]*10;
|
||||
if(i >= 8)
|
||||
@ -521,7 +521,7 @@ xcmp(char *a, char *b)
|
||||
{
|
||||
int c1, c2;
|
||||
|
||||
while(c1 = *b++) {
|
||||
while((c1 = *b++) != '\0') {
|
||||
c2 = *a++;
|
||||
if(isupper(c2))
|
||||
c2 = tolower(c2);
|
||||
|
||||
@ -40,5 +40,24 @@ main(int argc, char *argv[])
|
||||
print("%d\n", 23);
|
||||
print("%i\n", 23);
|
||||
print("%0.10d\n", 12345);
|
||||
|
||||
/* test %4$d formats */
|
||||
print("%3$d %4$06d %2$d %1$d\n", 444, 333, 111, 222);
|
||||
print("%3$d %4$06d %2$d %1$d\n", 444, 333, 111, 222);
|
||||
print("%3$d %4$*5$06d %2$d %1$d\n", 444, 333, 111, 222, 20);
|
||||
print("%3$hd %4$*5$06d %2$d %1$d\n", 444, 333, (short)111, 222, 20);
|
||||
print("%3$lld %4$*5$06d %2$d %1$d\n", 444, 333, 111LL, 222, 20);
|
||||
|
||||
/* test %'d formats */
|
||||
print("%'d %'d %'d\n", 1, 2222, 33333333);
|
||||
print("%'019d\n", 0);
|
||||
print("%08d %08d %08d\n", 1, 2222, 33333333);
|
||||
print("%'08d %'08d %'08d\n", 1, 2222, 33333333);
|
||||
print("%'x %'X %'b\n", 0x11111111, 0xabcd1234, 12345);
|
||||
print("%'lld %'lld %'lld\n", 1LL, 222222222LL, 3333333333333LL);
|
||||
print("%019lld %019lld %019lld\n", 1LL, 222222222LL, 3333333333333LL);
|
||||
print("%'019lld %'019lld %'019lld\n", 1LL, 222222222LL, 3333333333333LL);
|
||||
print("%'020lld %'020lld %'020lld\n", 1LL, 222222222LL, 3333333333333LL);
|
||||
print("%'llx %'llX %'llb\n", 0x111111111111LL, 0xabcd12345678LL, 112342345LL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -31,6 +31,7 @@ vseprint(char *buf, char *e, const char *fmt, va_list args)
|
||||
f.farg = nil;
|
||||
f.nfmt = 0;
|
||||
va_copy(f.args,args);
|
||||
fmtlocaleinit(&f, nil, nil, nil);
|
||||
dofmt(&f, fmt);
|
||||
va_end(f.args);
|
||||
*(char*)f.to = '\0';
|
||||
|
||||
@ -63,6 +63,7 @@ fmtstrinit(Fmt *f)
|
||||
f->flush = fmtStrFlush;
|
||||
f->farg = (void*)(uintptr_t)n;
|
||||
f->nfmt = 0;
|
||||
fmtlocaleinit(f, nil, nil, nil);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
@ -32,6 +32,7 @@ vsnprint(char *buf, int len, const char *fmt, va_list args)
|
||||
f.farg = nil;
|
||||
f.nfmt = 0;
|
||||
va_copy(f.args,args);
|
||||
fmtlocaleinit(&f, nil, nil, nil);
|
||||
dofmt(&f, fmt);
|
||||
va_end(f.args);
|
||||
*(char*)f.to = '\0';
|
||||
|
||||
@ -25,6 +25,7 @@ rregexec1(Reprog *progp, /* program to run */
|
||||
Relist* tle; /* ends of this and next list */
|
||||
Relist* nle;
|
||||
int match;
|
||||
Rune *p;
|
||||
|
||||
match = 0;
|
||||
checkstart = j->startchar;
|
||||
@ -44,20 +45,18 @@ rregexec1(Reprog *progp, /* program to run */
|
||||
if(checkstart) {
|
||||
switch(j->starttype) {
|
||||
case RUNE:
|
||||
while(*s != j->startchar) {
|
||||
if(*s == 0 || s == j->reol)
|
||||
p = runestrchr(s, j->startchar);
|
||||
if(p == 0 || p == j->reol)
|
||||
return match;
|
||||
s++;
|
||||
}
|
||||
s = p;
|
||||
break;
|
||||
case BOL:
|
||||
if(s == bol)
|
||||
break;
|
||||
while(*s != '\n') {
|
||||
if(*s == 0 || s == j->reol)
|
||||
p = runestrchr(s, '\n');
|
||||
if(p == 0 || s == j->reol)
|
||||
return match;
|
||||
s++;
|
||||
}
|
||||
s = p+1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
@ -23,27 +23,30 @@ enum
|
||||
Bit2 = 5,
|
||||
Bit3 = 4,
|
||||
Bit4 = 3,
|
||||
Bit5 = 2,
|
||||
|
||||
T1 = ((1<<(Bit1+1))-1) ^ 0xFF, /* 0000 0000 */
|
||||
Tx = ((1<<(Bitx+1))-1) ^ 0xFF, /* 1000 0000 */
|
||||
T2 = ((1<<(Bit2+1))-1) ^ 0xFF, /* 1100 0000 */
|
||||
T3 = ((1<<(Bit3+1))-1) ^ 0xFF, /* 1110 0000 */
|
||||
T4 = ((1<<(Bit4+1))-1) ^ 0xFF, /* 1111 0000 */
|
||||
T5 = ((1<<(Bit5+1))-1) ^ 0xFF, /* 1111 1000 */
|
||||
|
||||
Rune1 = (1<<(Bit1+0*Bitx))-1, /* 0000 0000 0111 1111 */
|
||||
Rune2 = (1<<(Bit2+1*Bitx))-1, /* 0000 0111 1111 1111 */
|
||||
Rune3 = (1<<(Bit3+2*Bitx))-1, /* 1111 1111 1111 1111 */
|
||||
Rune1 = (1<<(Bit1+0*Bitx))-1, /* 0000 0000 0000 0000 0111 1111 */
|
||||
Rune2 = (1<<(Bit2+1*Bitx))-1, /* 0000 0000 0000 0111 1111 1111 */
|
||||
Rune3 = (1<<(Bit3+2*Bitx))-1, /* 0000 0000 1111 1111 1111 1111 */
|
||||
Rune4 = (1<<(Bit4+3*Bitx))-1, /* 0011 1111 1111 1111 1111 1111 */
|
||||
|
||||
Maskx = (1<<Bitx)-1, /* 0011 1111 */
|
||||
Testx = Maskx ^ 0xFF, /* 1100 0000 */
|
||||
|
||||
Bad = Runeerror,
|
||||
Bad = Runeerror
|
||||
};
|
||||
|
||||
int
|
||||
chartorune(Rune *rune, const char *str)
|
||||
{
|
||||
int c, c1, c2;
|
||||
int c, c1, c2, c3;
|
||||
long l;
|
||||
|
||||
/*
|
||||
@ -88,6 +91,25 @@ chartorune(Rune *rune, const char *str)
|
||||
return 3;
|
||||
}
|
||||
|
||||
/*
|
||||
* four character sequence
|
||||
* 10000-10FFFF => T4 Tx Tx Tx
|
||||
*/
|
||||
if(UTFmax >= 4) {
|
||||
c3 = *(uchar*)(str+3) ^ Tx;
|
||||
if(c3 & Testx)
|
||||
goto bad;
|
||||
if(c < T5) {
|
||||
l = ((((((c << Bitx) | c1) << Bitx) | c2) << Bitx) | c3) & Rune4;
|
||||
if(l <= Rune3)
|
||||
goto bad;
|
||||
if(l > Runemax)
|
||||
goto bad;
|
||||
*rune = l;
|
||||
return 4;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* bad decoding
|
||||
*/
|
||||
@ -113,7 +135,7 @@ runetochar(char *str, const Rune *rune)
|
||||
|
||||
/*
|
||||
* two character sequence
|
||||
* 0080-07FF => T2 Tx
|
||||
* 00080-007FF => T2 Tx
|
||||
*/
|
||||
if(c <= Rune2) {
|
||||
str[0] = T2 | (c >> 1*Bitx);
|
||||
@ -123,20 +145,36 @@ runetochar(char *str, const Rune *rune)
|
||||
|
||||
/*
|
||||
* three character sequence
|
||||
* 0800-FFFF => T3 Tx Tx
|
||||
* 00800-0FFFF => T3 Tx Tx
|
||||
*/
|
||||
if(c > Runemax)
|
||||
c = Runeerror;
|
||||
if(c <= Rune3) {
|
||||
str[0] = T3 | (c >> 2*Bitx);
|
||||
str[1] = Tx | ((c >> 1*Bitx) & Maskx);
|
||||
str[2] = Tx | (c & Maskx);
|
||||
return 3;
|
||||
}
|
||||
|
||||
/*
|
||||
* four character sequence
|
||||
* 010000-1FFFFF => T4 Tx Tx Tx
|
||||
*/
|
||||
str[0] = T4 | (c >> 3*Bitx);
|
||||
str[1] = Tx | ((c >> 2*Bitx) & Maskx);
|
||||
str[2] = Tx | ((c >> 1*Bitx) & Maskx);
|
||||
str[3] = Tx | (c & Maskx);
|
||||
return 4;
|
||||
}
|
||||
|
||||
int
|
||||
runelen(Rune c)
|
||||
runelen(long c)
|
||||
{
|
||||
Rune rune;
|
||||
char str[10];
|
||||
|
||||
return runetochar(str, &c);
|
||||
rune = c;
|
||||
return runetochar(str, &rune);
|
||||
}
|
||||
|
||||
int
|
||||
@ -153,7 +191,10 @@ runenlen(const Rune *r, int nrune)
|
||||
if(c <= Rune2)
|
||||
nb += 2;
|
||||
else
|
||||
if(c <= Rune3 || c > Runemax)
|
||||
nb += 3;
|
||||
else
|
||||
nb += 4;
|
||||
}
|
||||
return nb;
|
||||
}
|
||||
@ -163,13 +204,14 @@ fullrune(const char *str, int n)
|
||||
{
|
||||
int c;
|
||||
|
||||
if(n > 0) {
|
||||
if(n <= 0)
|
||||
return 0;
|
||||
c = *(uchar*)str;
|
||||
if(c < Tx)
|
||||
return 1;
|
||||
if(n > 1)
|
||||
if(c < T3 || n > 2)
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
if(c < T3)
|
||||
return n >= 2;
|
||||
if(UTFmax == 3 || c < T4)
|
||||
return n >= 3;
|
||||
return n >= 4;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user