616 lines
9.5 KiB
C
616 lines
9.5 KiB
C
#include "config.h"
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#include <ctype.h>
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#include "f2c.h"
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#include "fio.h"
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extern int f__cursor;
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#undef abs
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#undef min
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#undef max
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#include <stdlib.h>
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#include "fmt.h"
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#include "fp.h"
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static int
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rd_Z (Uint * n, int w, ftnlen len)
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{
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long x[9];
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char *s, *s0, *s1, *se, *t;
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int ch, i, w1, w2;
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static char hex[256];
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static int one = 1;
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int bad = 0;
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if (!hex['0'])
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{
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s = "0123456789";
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while (ch = *s++)
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hex[ch] = ch - '0' + 1;
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s = "ABCDEF";
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while (ch = *s++)
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hex[ch] = hex[ch + 'a' - 'A'] = ch - 'A' + 11;
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}
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s = s0 = (char *) x;
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s1 = (char *) &x[4];
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se = (char *) &x[8];
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if (len > 4 * (ftnlen) sizeof (long))
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return errno = 117;
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while (w)
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{
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GET (ch);
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if (ch == ',' || ch == '\n')
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break;
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w--;
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if (ch > ' ')
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{
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if (!hex[ch & 0xff])
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bad++;
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*s++ = ch;
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if (s == se)
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{
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/* discard excess characters */
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for (t = s0, s = s1; t < s1;)
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*t++ = *s++;
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s = s1;
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}
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}
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}
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if (bad)
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return errno = 115;
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w = (int) len;
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w1 = s - s0;
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w2 = w1 + 1 >> 1;
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t = (char *) n;
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if (*(char *) &one)
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{
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/* little endian */
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t += w - 1;
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i = -1;
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}
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else
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i = 1;
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for (; w > w2; t += i, --w)
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*t = 0;
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if (!w)
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return 0;
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if (w < w2)
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s0 = s - (w << 1);
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else if (w1 & 1)
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{
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*t = hex[*s0++ & 0xff] - 1;
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if (!--w)
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return 0;
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t += i;
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}
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do
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{
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*t = hex[*s0 & 0xff] - 1 << 4 | hex[s0[1] & 0xff] - 1;
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t += i;
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s0 += 2;
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}
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while (--w);
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return 0;
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}
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static int
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rd_I (Uint * n, int w, ftnlen len, register int base)
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{
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int ch, sign;
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longint x = 0;
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if (w <= 0)
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goto have_x;
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for (;;)
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{
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GET (ch);
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if (ch != ' ')
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break;
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if (!--w)
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goto have_x;
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}
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sign = 0;
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switch (ch)
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{
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case ',':
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case '\n':
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w = 0;
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goto have_x;
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case '-':
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sign = 1;
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case '+':
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break;
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default:
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if (ch >= '0' && ch <= '9')
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{
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x = ch - '0';
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break;
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}
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goto have_x;
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}
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while (--w)
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{
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GET (ch);
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if (ch >= '0' && ch <= '9')
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{
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x = x * base + ch - '0';
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continue;
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}
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if (ch != ' ')
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{
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if (ch == '\n' || ch == ',')
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w = 0;
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break;
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}
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if (f__cblank)
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x *= base;
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}
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if (sign)
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x = -x;
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have_x:
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if (len == sizeof (integer))
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n->il = x;
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else if (len == sizeof (char))
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n->ic = (char) x;
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#ifdef Allow_TYQUAD
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else if (len == sizeof (longint))
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n->ili = x;
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#endif
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else
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n->is = (short) x;
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if (w)
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{
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while (--w)
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GET (ch);
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return errno = 115;
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}
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return 0;
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}
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static int
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rd_L (ftnint * n, int w, ftnlen len)
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{
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int ch, dot, lv;
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if (w <= 0)
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goto bad;
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for (;;)
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{
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GET (ch);
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--w;
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if (ch != ' ')
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break;
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if (!w)
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goto bad;
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}
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dot = 0;
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retry:
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switch (ch)
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{
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case '.':
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if (dot++ || !w)
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goto bad;
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GET (ch);
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--w;
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goto retry;
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case 't':
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case 'T':
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lv = 1;
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break;
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case 'f':
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case 'F':
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lv = 0;
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break;
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default:
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bad:
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for (; w > 0; --w)
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GET (ch);
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/* no break */
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case ',':
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case '\n':
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return errno = 116;
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}
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/* The switch statement that was here
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didn't cut it: It broke down for targets
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where sizeof(char) == sizeof(short). */
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if (len == sizeof (char))
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*(char *) n = (char) lv;
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else if (len == sizeof (short))
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*(short *) n = (short) lv;
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else
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*n = lv;
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while (w-- > 0)
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{
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GET (ch);
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if (ch == ',' || ch == '\n')
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break;
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}
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return 0;
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}
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static int
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rd_F (ufloat * p, int w, int d, ftnlen len)
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{
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char s[FMAX + EXPMAXDIGS + 4];
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register int ch;
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register char *sp, *spe, *sp1;
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double x;
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int scale1, se;
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long e, exp;
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sp1 = sp = s;
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spe = sp + FMAX;
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exp = -d;
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x = 0.;
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do
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{
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GET (ch);
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w--;
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}
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while (ch == ' ' && w);
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switch (ch)
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{
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case '-':
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*sp++ = ch;
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sp1++;
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spe++;
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case '+':
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if (!w)
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goto zero;
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--w;
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GET (ch);
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}
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while (ch == ' ')
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{
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blankdrop:
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if (!w--)
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goto zero;
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GET (ch);
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}
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while (ch == '0')
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{
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if (!w--)
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goto zero;
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GET (ch);
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}
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if (ch == ' ' && f__cblank)
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goto blankdrop;
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scale1 = f__scale;
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while (isdigit (ch))
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{
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digloop1:
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if (sp < spe)
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*sp++ = ch;
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else
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++exp;
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digloop1e:
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if (!w--)
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goto done;
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GET (ch);
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}
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if (ch == ' ')
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{
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if (f__cblank)
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{
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ch = '0';
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goto digloop1;
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}
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goto digloop1e;
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}
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if (ch == '.')
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{
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exp += d;
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if (!w--)
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goto done;
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GET (ch);
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if (sp == sp1)
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{ /* no digits yet */
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while (ch == '0')
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{
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skip01:
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--exp;
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skip0:
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if (!w--)
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goto done;
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GET (ch);
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}
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if (ch == ' ')
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{
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if (f__cblank)
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goto skip01;
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goto skip0;
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}
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}
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while (isdigit (ch))
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{
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digloop2:
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if (sp < spe)
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{
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*sp++ = ch;
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--exp;
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}
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digloop2e:
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if (!w--)
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goto done;
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GET (ch);
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}
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if (ch == ' ')
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{
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if (f__cblank)
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{
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ch = '0';
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goto digloop2;
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}
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goto digloop2e;
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}
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}
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switch (ch)
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{
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default:
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break;
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case '-':
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se = 1;
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goto signonly;
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case '+':
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se = 0;
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goto signonly;
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case 'e':
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case 'E':
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case 'd':
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case 'D':
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if (!w--)
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goto bad;
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GET (ch);
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while (ch == ' ')
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{
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if (!w--)
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goto bad;
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GET (ch);
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}
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se = 0;
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switch (ch)
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{
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case '-':
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se = 1;
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case '+':
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signonly:
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if (!w--)
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goto bad;
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GET (ch);
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}
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while (ch == ' ')
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{
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if (!w--)
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goto bad;
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GET (ch);
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}
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if (!isdigit (ch))
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goto bad;
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e = ch - '0';
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for (;;)
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{
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if (!w--)
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{
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ch = '\n';
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break;
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}
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GET (ch);
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if (!isdigit (ch))
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{
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if (ch == ' ')
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{
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if (f__cblank)
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ch = '0';
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else
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continue;
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}
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else
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break;
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}
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e = 10 * e + ch - '0';
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if (e > EXPMAX && sp > sp1)
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goto bad;
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}
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if (se)
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exp -= e;
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else
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exp += e;
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scale1 = 0;
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}
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switch (ch)
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{
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case '\n':
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case ',':
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break;
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default:
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bad:
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return (errno = 115);
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}
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done:
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if (sp > sp1)
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{
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while (*--sp == '0')
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++exp;
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if (exp -= scale1)
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sprintf (sp + 1, "e%ld", exp);
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else
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sp[1] = 0;
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x = atof (s);
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}
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zero:
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if (len == sizeof (real))
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p->pf = x;
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else
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p->pd = x;
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return (0);
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}
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static int
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rd_A (char *p, ftnlen len)
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{
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int i, ch;
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for (i = 0; i < len; i++)
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{
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GET (ch);
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*p++ = VAL (ch);
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}
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return (0);
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}
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static int
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rd_AW (char *p, int w, ftnlen len)
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{
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int i, ch;
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if (w >= len)
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{
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for (i = 0; i < w - len; i++)
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GET (ch);
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for (i = 0; i < len; i++)
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{
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GET (ch);
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*p++ = VAL (ch);
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}
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return (0);
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}
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for (i = 0; i < w; i++)
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{
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GET (ch);
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*p++ = VAL (ch);
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}
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for (i = 0; i < len - w; i++)
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*p++ = ' ';
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return (0);
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}
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static int
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rd_H (int n, char *s)
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{
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int i, ch;
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for (i = 0; i < n; i++)
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if ((ch = (*f__getn) ()) < 0)
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return (ch);
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else
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*s++ = ch == '\n' ? ' ' : ch;
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return (1);
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}
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static int
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rd_POS (char *s)
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{
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char quote;
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int ch;
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quote = *s++;
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for (; *s; s++)
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if (*s == quote && *(s + 1) != quote)
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break;
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else if ((ch = (*f__getn) ()) < 0)
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return (ch);
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else
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*s = ch == '\n' ? ' ' : ch;
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return (1);
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}
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int
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rd_ed (struct syl * p, char *ptr, ftnlen len)
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{
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int ch;
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for (; f__cursor > 0; f__cursor--)
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if ((ch = (*f__getn) ()) < 0)
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return (ch);
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if (f__cursor < 0)
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{
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if (f__recpos + f__cursor < 0) /*err(elist->cierr,110,"fmt") */
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f__cursor = -f__recpos; /* is this in the standard? */
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if (f__external == 0)
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{
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extern char *f__icptr;
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f__icptr += f__cursor;
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}
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else if (f__curunit && f__curunit->useek)
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FSEEK (f__cf, (off_t) f__cursor, SEEK_CUR);
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else
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err (f__elist->cierr, 106, "fmt");
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f__recpos += f__cursor;
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f__cursor = 0;
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}
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switch (p->op)
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{
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default:
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fprintf (stderr, "rd_ed, unexpected code: %d\n", p->op);
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sig_die (f__fmtbuf, 1);
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case IM:
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case I:
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ch = rd_I ((Uint *) ptr, p->p1, len, 10);
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break;
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/* O and OM don't work right for character, double, complex, */
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/* or doublecomplex, and they differ from Fortran 90 in */
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/* showing a minus sign for negative values. */
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case OM:
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case O:
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ch = rd_I ((Uint *) ptr, p->p1, len, 8);
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break;
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case L:
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ch = rd_L ((ftnint *) ptr, p->p1, len);
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break;
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case A:
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ch = rd_A (ptr, len);
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break;
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case AW:
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ch = rd_AW (ptr, p->p1, len);
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break;
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case E:
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case EE:
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case D:
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case G:
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case GE:
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case F:
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ch = rd_F ((ufloat *) ptr, p->p1, p->p2.i[0], len);
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break;
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/* Z and ZM assume 8-bit bytes. */
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case ZM:
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case Z:
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ch = rd_Z ((Uint *) ptr, p->p1, len);
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break;
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}
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if (ch == 0)
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return (ch);
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else if (ch == EOF)
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return (EOF);
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if (f__cf)
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clearerr (f__cf);
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return (errno);
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}
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int
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rd_ned (struct syl * p)
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{
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switch (p->op)
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{
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default:
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fprintf (stderr, "rd_ned, unexpected code: %d\n", p->op);
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sig_die (f__fmtbuf, 1);
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case APOS:
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return (rd_POS (p->p2.s));
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case H:
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return (rd_H (p->p1, p->p2.s));
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case SLASH:
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return ((*f__donewrec) ());
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case TR:
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case X:
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f__cursor += p->p1;
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return (1);
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case T:
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f__cursor = p->p1 - f__recpos - 1;
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return (1);
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case TL:
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f__cursor -= p->p1;
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if (f__cursor < -f__recpos) /* TL1000, 1X */
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f__cursor = -f__recpos;
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return (1);
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}
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}
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