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-rw-r--r--sprintf.c655
1 files changed, 0 insertions, 655 deletions
diff --git a/sprintf.c b/sprintf.c
deleted file mode 100644
index 2355a65f9c..0000000000
--- a/sprintf.c
+++ /dev/null
@@ -1,655 +0,0 @@
-/**********************************************************************
-
- sprintf.c -
-
- $Author$
- $Date$
- created at: Fri Oct 15 10:39:26 JST 1993
-
- Copyright (C) 1993-2001 Yukihiro Matsumoto
- Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
- Copyright (C) 2000 Information-technology Promotion Agency, Japan
-
-**********************************************************************/
-
-#include "ruby.h"
-#include <ctype.h>
-#include <math.h>
-
-#define BIT_DIGITS(N) (((N)*146)/485 + 1) /* log2(10) =~ 146/485 */
-
-static void fmt_setup _((char*,int,int,int,int));
-
-static char*
-remove_sign_bits(str, base)
- char *str;
- int base;
-{
- char *s, *t, *end;
-
- s = t = str;
- end = str + strlen(str);
-
- if (base == 16) {
- x_retry:
- switch (*t) {
- case 'c': case 'C':
- *t = '4';
- break;
- case 'd': case 'D':
- *t = '5';
- break;
- case 'e': case 'E':
- *t = '2';
- break;
- case 'f': case 'F':
- if (t[1] > '8') {
- t++;
- goto x_retry;
- }
- *t = '1';
- break;
- case '1':
- case '3':
- case '7':
- if (t[1] > '8') {
- t++;
- goto x_retry;
- }
- break;
- }
- switch (*t) {
- case '1': *t = 'f'; break;
- case '2': *t = 'e'; break;
- case '3': *t = 'f'; break;
- case '4': *t = 'c'; break;
- case '5': *t = 'd'; break;
- case '6': *t = 'e'; break;
- case '7': *t = 'f'; break;
- }
- }
- else if (base == 8) {
- o_retry:
- switch (*t) {
- case '6':
- *t = '2';
- break;
- case '7':
- if (t[1] > '3') {
- t++;
- goto o_retry;
- }
- *t = '1';
- break;
- case '1':
- case '3':
- if (t[1] > '3') {
- t++;
- goto o_retry;
- }
- break;
- }
- switch (*t) {
- case '1': *t = '7'; break;
- case '2': *t = '6'; break;
- case '3': *t = '7'; break;
- }
- }
- else if (base == 2) {
- while (t<end && *t == '1') t++;
- t--;
- }
- while (*t) *s++ = *t++;
- *s = '\0';
-
- return str;
-}
-
-#define FNONE 0
-#define FSHARP 1
-#define FMINUS 2
-#define FPLUS 4
-#define FZERO 8
-#define FSPACE 16
-#define FWIDTH 32
-#define FPREC 64
-
-#define CHECK(l) {\
- while (blen + (l) >= bsiz) {\
- REALLOC_N(buf, char, bsiz*2);\
- bsiz*=2;\
- }\
-}
-
-#define PUSH(s, l) { \
- CHECK(l);\
- memcpy(&buf[blen], s, l);\
- blen += (l);\
-}
-
-#define GETARG() \
- ((nextarg >= argc) ? (rb_raise(rb_eArgError, "too few argument."), 0) : argv[nextarg++])
-
-#define GETASTER(val) { \
- t = p++; \
- n = 0; \
- for (; p < end && ISDIGIT(*p); p++) { \
- n = 10 * n + (*p - '0'); \
- } \
- if (p >= end) { \
- rb_raise(rb_eArgError, "malformed format string - %%*[0-9]"); \
- } \
- if (*p == '$') { \
- int curarg = nextarg; \
- nextarg = n; \
- tmp = GETARG(); \
- nextarg = curarg; \
- } \
- else { \
- tmp = GETARG(); \
- p = t; \
- } \
- val = NUM2INT(tmp); \
-}
-
-VALUE
-rb_f_sprintf(argc, argv)
- int argc;
- VALUE *argv;
-{
- VALUE fmt;
- char *buf, *p, *end;
- int blen, bsiz;
- VALUE result;
-
- int width, prec, flags = FNONE;
- int nextarg = 0;
- int tainted = 0;
- VALUE tmp;
- VALUE str;
-
- fmt = GETARG();
- if (OBJ_TAINTED(fmt)) tainted = 1;
- StringValue(fmt);
- p = RSTRING(fmt)->ptr;
- end = p + RSTRING(fmt)->len;
- blen = 0;
- bsiz = 120;
- buf = ALLOC_N(char, bsiz);
-
- for (; p < end; p++) {
- char *t;
- int n;
-
- for (t = p; t < end && *t != '%'; t++) ;
- PUSH(p, t - p);
- if (t >= end) {
- /* end of fmt string */
- goto sprint_exit;
- }
- p = t + 1; /* skip `%' */
-
- width = prec = -1;
- retry:
- switch (*p) {
- default:
- if (ISPRINT(*p))
- rb_raise(rb_eArgError, "malformed format string - %%%c", *p);
- else
- rb_raise(rb_eArgError, "malformed format string");
- break;
-
- case ' ':
- flags |= FSPACE;
- p++;
- goto retry;
-
- case '#':
- flags |= FSHARP;
- p++;
- goto retry;
-
- case '+':
- flags |= FPLUS;
- p++;
- goto retry;
-
- case '-':
- flags |= FMINUS;
- p++;
- goto retry;
-
- case '0':
- flags |= FZERO;
- p++;
- goto retry;
-
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- n = 0;
- for (; p < end && ISDIGIT(*p); p++) {
- n = 10 * n + (*p - '0');
- }
- if (p >= end) {
- rb_raise(rb_eArgError, "malformed format string - %%[0-9]");
- }
- if (*p == '$') {
- nextarg = n;
- p++;
- goto retry;
- }
- width = n;
- flags |= FWIDTH;
- goto retry;
-
- case '*':
- if (flags & FWIDTH) {
- rb_raise(rb_eArgError, "width given twice");
- }
-
- flags |= FWIDTH;
- GETASTER(width);
- if (width < 0) {
- flags |= FMINUS;
- width = -width;
- }
- p++;
- goto retry;
-
- case '.':
- if (flags & FPREC) {
- rb_raise(rb_eArgError, "precision given twice");
- }
- flags |= FPREC;
-
- prec = 0;
- p++;
- if (*p == '*') {
- GETASTER(prec);
- if (prec < 0) { /* ignore negative precision */
- flags &= ~FPREC;
- }
- p++;
- goto retry;
- }
-
- for (; p < end && ISDIGIT(*p); p++) {
- prec = 10 * prec + (*p - '0');
- }
- if (p >= end) {
- rb_raise(rb_eArgError, "malformed format string - %%.[0-9]");
- }
- goto retry;
-
- case '\n':
- p--;
- case '\0':
- case '%':
- if (flags != FNONE) {
- rb_raise(rb_eArgError, "illegal format character - %%");
- }
- PUSH("%", 1);
- break;
-
- case 'c':
- {
- VALUE val = GETARG();
- char c;
-
- if (!(flags & FMINUS))
- while (--width > 0)
- PUSH(" ", 1);
- c = NUM2INT(val) & 0xff;
- PUSH(&c, 1);
- while (--width > 0)
- PUSH(" ", 1);
- }
- break;
-
- case 's':
- {
- VALUE arg = GETARG();
- int len;
-
- str = rb_obj_as_string(arg);
- if (OBJ_TAINTED(str)) tainted = 1;
- len = RSTRING(str)->len;
- if (flags&FPREC) {
- if (prec < len) {
- len = prec;
- }
- }
- if (flags&FWIDTH) {
- if (width > len) {
- CHECK(width);
- width -= len;
- if (!(flags&FMINUS)) {
- while (width--) {
- buf[blen++] = ' ';
- }
- }
- memcpy(&buf[blen], RSTRING(str)->ptr, len);
- blen += len;
- if (flags&FMINUS) {
- while (width--) {
- buf[blen++] = ' ';
- }
- }
- break;
- }
- }
- PUSH(RSTRING(str)->ptr, len);
- }
- break;
-
- case 'd':
- case 'i':
- case 'o':
- case 'x':
- case 'X':
- case 'b':
- case 'B':
- case 'u':
- {
- volatile VALUE val = GETARG();
- char fbuf[32], nbuf[64], *s, *t;
- char *prefix = 0;
- int sign = 0;
- char sc = 0;
- long v;
- int base, bignum = 0;
- int len, pos;
-
- switch (*p) {
- case 'd':
- case 'i':
- sign = 1; break;
- case 'o':
- case 'x':
- case 'X':
- case 'b':
- case 'B':
- case 'u':
- default:
- if (flags&(FPLUS|FSPACE)) sign = 1;
- break;
- }
- if (flags & FSHARP) {
- if (*p == 'o') prefix = "0";
- else if (*p == 'x') prefix = "0x";
- else if (*p == 'X') prefix = "0X";
- else if (*p == 'b') prefix = "0b";
- else if (*p == 'B') prefix = "0B";
- if (prefix) {
- width -= strlen(prefix);
- }
- }
-
- bin_retry:
- switch (TYPE(val)) {
- case T_FLOAT:
- val = rb_dbl2big(RFLOAT(val)->value);
- if (FIXNUM_P(val)) goto bin_retry;
- bignum = 1;
- break;
- case T_STRING:
- val = rb_str_to_inum(val, 0, Qtrue);
- goto bin_retry;
- case T_BIGNUM:
- bignum = 1;
- break;
- default:
- v = NUM2LONG(val);
- break;
- case T_FIXNUM:
- v = FIX2LONG(val);
- break;
- }
-
- if (*p == 'u' || *p == 'd' || *p == 'i') base = 10;
- else if (*p == 'x' || *p == 'X') base = 16;
- else if (*p == 'o') base = 8;
- else if (*p == 'b' || *p == 'B') base = 2;
- if (!bignum) {
- if (base == 2) {
- val = rb_int2big(v);
- goto bin_retry;
- }
- if (sign) {
- char c = *p;
- if (c == 'i') c = 'd'; /* %d and %i are identical */
- if (v < 0) {
- v = -v;
- sc = '-';
- width--;
- }
- else if (flags & FPLUS) {
- sc = '+';
- width--;
- }
- else if (flags & FSPACE) {
- sc = ' ';
- width--;
- }
- sprintf(fbuf, "%%l%c", c);
- sprintf(nbuf, fbuf, v);
- s = nbuf;
- goto format_integer;
- }
- s = nbuf;
- if (v < 0) {
- strcpy(s, "..");
- s += 2;
- }
- sprintf(fbuf, "%%l%c", *p);
- sprintf(s, fbuf, v);
- if (v < 0) {
- char d = 0;
-
- remove_sign_bits(s, base);
- switch (base) {
- case 16:
- d = 'f';
- break;
- case 8:
- d = '7'; break;
- }
- if (d && *s != d) {
- memmove(s+1, s, strlen(s)+1);
- *s = d;
- }
- }
- s = nbuf;
- goto format_integer;
- }
-
- if (sign) {
- val = rb_big2str(val, base);
- s = RSTRING(val)->ptr;
- if (s[0] == '-') {
- s++;
- sc = '-';
- width--;
- }
- else if (flags & FPLUS) {
- sc = '+';
- width--;
- }
- else if (flags & FSPACE) {
- sc = ' ';
- width--;
- }
- goto format_integer;
- }
- if (!RBIGNUM(val)->sign) {
- val = rb_big_clone(val);
- rb_big_2comp(val);
- }
- val = rb_big2str(val, base);
- s = RSTRING(val)->ptr;
- if (*s == '-') {
- remove_sign_bits(++s, base);
- val = rb_str_new(0, 3+strlen(s));
- t = RSTRING(val)->ptr;
- strcpy(t, "..");
- t += 2;
- switch (base) {
- case 16:
- if (s[0] != 'f') strcpy(t++, "f"); break;
- case 8:
- if (s[0] != '7') strcpy(t++, "7"); break;
- }
- strcpy(t, s);
- bignum = 2;
- }
- s = RSTRING(val)->ptr;
-
- format_integer:
- pos = -1;
- len = strlen(s);
-
- if (*p == 'X') {
- char *pp = s;
- while (*pp) {
- *pp = toupper(*pp);
- pp++;
- }
- }
- if (prec < len) prec = len;
- width -= prec;
- if (!(flags&(FZERO|FMINUS)) && s[0] != '.') {
- CHECK(width);
- while (width-->0) {
- buf[blen++] = ' ';
- }
- }
- if (sc) PUSH(&sc, 1);
- if (prefix) {
- int plen = strlen(prefix);
- PUSH(prefix, plen);
- if (pos) pos += plen;
- }
- if (!(flags & FMINUS)) {
- char c = ' ';
-
- if (s[0] == '.') {
- c = '.';
- if ((flags & FPREC) && prec > len) {
- pos = blen;
- }
- else {
- pos = blen + 2;
- }
- }
- else if (flags & FZERO) c = '0';
- CHECK(width);
- while (width-->0) {
- buf[blen++] = c;
- }
- }
- CHECK(prec - len);
- while (len < prec--) {
- buf[blen++] = s[0]=='.'?'.':'0';
- }
- PUSH(s, len);
- CHECK(width);
- while (width-->0) {
- buf[blen++] = ' ';
- }
- if (pos >= 0 && buf[pos] == '.') {
- char c = '.';
-
- switch (base) {
- case 16:
- if (*p == 'X') c = 'F';
- else c = 'f';
- break;
- case 8:
- c = '7'; break;
- case 2:
- c = '1'; break;
- }
- s = &buf[pos];
- while (*s && *s == '.') {
- *s++ = c;
- }
- }
- }
- break;
-
- case 'f':
- case 'g':
- case 'G':
- case 'e':
- case 'E':
- {
- VALUE val = GETARG();
- double fval;
- int i, need = 6;
- char fbuf[32];
-
- fval = RFLOAT(rb_Float(val))->value;
- fmt_setup(fbuf, *p, flags, width, prec);
- need = 0;
- if (*p != 'e' && *p != 'E') {
- i = INT_MIN;
- frexp(fval, &i);
- if (i > 0)
- need = BIT_DIGITS(i);
- }
- need += (flags&FPREC) ? prec : 6;
- if ((flags&FWIDTH) && need < width)
- need = width;
- need += 20;
-
- CHECK(need);
- sprintf(&buf[blen], fbuf, fval);
- blen += strlen(&buf[blen]);
- }
- break;
- }
- flags = FNONE;
- }
-
- sprint_exit:
-#if 0
- /* XXX - We cannot validiate the number of arguments because
- * the format string may contain `n$'-style argument selector.
- */
- if (RTEST(ruby_verbose) && nextarg < argc) {
- rb_raise(rb_eArgError, "too many argument for format string");
- }
-#endif
- result = rb_str_new(buf, blen);
- free(buf);
-
- if (tainted) OBJ_TAINT(result);
- return result;
-}
-
-static void
-fmt_setup(buf, c, flags, width, prec)
- char *buf;
- int c;
- int flags, width, prec;
-{
- *buf++ = '%';
- if (flags & FSHARP) *buf++ = '#';
- if (flags & FPLUS) *buf++ = '+';
- if (flags & FMINUS) *buf++ = '-';
- if (flags & FZERO) *buf++ = '0';
- if (flags & FSPACE) *buf++ = ' ';
-
- if (flags & FWIDTH) {
- sprintf(buf, "%d", width);
- buf += strlen(buf);
- }
-
- if (flags & FPREC) {
- sprintf(buf, ".%d", prec);
- buf += strlen(buf);
- }
-
- *buf++ = c;
- *buf = '\0';
-}
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