| 1 |
greg |
1.1 |
#ifndef lint
|
| 2 |
schorsch |
1.8 |
static const char RCSid[] = "$Id: rcalc.c,v 1.7 2003/07/27 22:12:01 schorsch Exp $";
|
| 3 |
greg |
1.1 |
#endif
|
| 4 |
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/*
|
| 5 |
|
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* rcalc.c - record calculator program.
|
| 6 |
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*
|
| 7 |
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* 9/11/87
|
| 8 |
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*/
|
| 9 |
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|
| 10 |
schorsch |
1.5 |
#include <stdlib.h>
|
| 11 |
greg |
1.1 |
#include <stdio.h>
|
| 12 |
schorsch |
1.5 |
#include <string.h>
|
| 13 |
greg |
1.1 |
#include <math.h>
|
| 14 |
|
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#include <ctype.h>
|
| 15 |
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|
| 16 |
schorsch |
1.5 |
#include "platform.h"
|
| 17 |
greg |
1.1 |
#include "calcomp.h"
|
| 18 |
schorsch |
1.7 |
#include "rterror.h"
|
| 19 |
greg |
1.1 |
|
| 20 |
|
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#define isnum(c) (isdigit(c) || (c)=='-' || (c)=='.' \
|
| 21 |
|
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|| (c)=='+' || (c)=='e' || (c)=='E')
|
| 22 |
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|
| 23 |
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#define isblnk(c) (igneol ? isspace(c) : (c)==' '||(c)=='\t')
|
| 24 |
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| 25 |
|
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#define INBSIZ 4096 /* longest record */
|
| 26 |
|
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#define MAXCOL 32 /* number of columns recorded */
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| 27 |
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|
| 28 |
|
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/* field type specifications */
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| 29 |
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#define F_NUL 0 /* empty */
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| 30 |
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#define F_TYP 0x7000 /* mask for type */
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| 31 |
|
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#define F_WID 0x0fff /* mask for width */
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| 32 |
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#define T_LIT 0x1000 /* string literal */
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| 33 |
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#define T_STR 0x2000 /* string variable */
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| 34 |
|
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#define T_NUM 0x3000 /* numeric value */
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| 35 |
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|
| 36 |
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struct strvar { /* string variable */
|
| 37 |
|
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char *name;
|
| 38 |
|
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char *val;
|
| 39 |
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char *preset;
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| 40 |
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struct strvar *next;
|
| 41 |
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};
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| 42 |
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| 43 |
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struct field { /* record format structure */
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| 44 |
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int type; /* type of field (& width) */
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| 45 |
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union {
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| 46 |
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char *sl; /* string literal */
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| 47 |
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struct strvar *sv; /* string variable */
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| 48 |
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char *nv; /* numeric variable */
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| 49 |
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EPNODE *ne; /* numeric expression */
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| 50 |
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} f; /* field contents */
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| 51 |
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struct field *next; /* next field in record */
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| 52 |
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};
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| 53 |
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| 54 |
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#define savqstr(s) strcpy(emalloc(strlen(s)+1),s)
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| 55 |
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#define freqstr(s) efree(s)
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| 56 |
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|
| 57 |
schorsch |
1.5 |
static void scaninp(void), advinp(void), resetinp(void);
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| 58 |
|
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static void putrec(void), putout(void), nbsynch(void);
|
| 59 |
|
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static int getrec(void);
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| 60 |
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static void execute(char *file);
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| 61 |
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static void initinp(FILE *fp);
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| 62 |
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static void svpreset(char *eqn);
|
| 63 |
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static void readfmt(char *spec, int output);
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| 64 |
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static int readfield(char **pp);
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| 65 |
|
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static int getfield(struct field *f);
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| 66 |
|
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static void chanset(int n, double v);
|
| 67 |
|
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static void bchanset(int n, double v);
|
| 68 |
|
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static struct strvar* getsvar(char *svname);
|
| 69 |
greg |
1.1 |
|
| 70 |
|
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struct field *inpfmt = NULL; /* input record format */
|
| 71 |
|
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struct field *outfmt = NULL; /* output record structure */
|
| 72 |
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struct strvar *svhead = NULL; /* string variables */
|
| 73 |
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|
| 74 |
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int blnkeq = 1; /* blanks compare equal? */
|
| 75 |
|
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int igneol = 0; /* ignore end of line? */
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| 76 |
|
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char sepchar = '\t'; /* input/output separator */
|
| 77 |
|
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int noinput = 0; /* no input records? */
|
| 78 |
greg |
1.3 |
int nbicols = 0; /* number of binary input columns */
|
| 79 |
|
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int bocols = 0; /* produce binary output columns */
|
| 80 |
greg |
1.1 |
char inpbuf[INBSIZ]; /* input buffer */
|
| 81 |
|
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double colval[MAXCOL]; /* input column values */
|
| 82 |
|
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unsigned long colflg = 0; /* column retrieved flags */
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| 83 |
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int colpos; /* output column position */
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| 84 |
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| 85 |
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int nowarn = 0; /* non-fatal diagnostic output */
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| 86 |
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int unbuff = 0; /* unbuffered output (flush each record) */
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| 87 |
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|
| 88 |
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struct {
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| 89 |
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FILE *fin; /* input file */
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| 90 |
|
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int chr; /* next character */
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| 91 |
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char *beg; /* home position */
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| 92 |
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char *pos; /* scan position */
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| 93 |
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char *end; /* read position */
|
| 94 |
|
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} ipb; /* circular lookahead buffer */
|
| 95 |
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| 96 |
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| 97 |
schorsch |
1.5 |
int
|
| 98 |
|
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main(
|
| 99 |
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int argc,
|
| 100 |
|
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char *argv[]
|
| 101 |
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)
|
| 102 |
greg |
1.1 |
{
|
| 103 |
|
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int i;
|
| 104 |
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|
| 105 |
greg |
1.2 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_OUTCHAN|E_RCONST;
|
| 106 |
|
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esupport &= ~(E_REDEFW);
|
| 107 |
greg |
1.1 |
|
| 108 |
|
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#ifdef BIGGERLIB
|
| 109 |
|
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biggerlib();
|
| 110 |
|
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#endif
|
| 111 |
|
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varset("PI", ':', 3.14159265358979323846);
|
| 112 |
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| 113 |
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for (i = 1; i < argc && argv[i][0] == '-'; i++)
|
| 114 |
|
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switch (argv[i][1]) {
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| 115 |
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case 'b':
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| 116 |
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blnkeq = !blnkeq;
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| 117 |
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break;
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| 118 |
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case 'l':
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| 119 |
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igneol = !igneol;
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| 120 |
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break;
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| 121 |
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case 't':
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| 122 |
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sepchar = argv[i][2];
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| 123 |
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break;
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| 124 |
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case 's':
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| 125 |
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svpreset(argv[++i]);
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| 126 |
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break;
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| 127 |
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case 'f':
|
| 128 |
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fcompile(argv[++i]);
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| 129 |
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break;
|
| 130 |
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case 'e':
|
| 131 |
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scompile(argv[++i], NULL, 0);
|
| 132 |
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break;
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| 133 |
|
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case 'n':
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| 134 |
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noinput = 1;
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| 135 |
|
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break;
|
| 136 |
|
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case 'i':
|
| 137 |
greg |
1.3 |
switch (argv[i][2]) {
|
| 138 |
|
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case '\0':
|
| 139 |
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nbicols = 0;
|
| 140 |
|
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readfmt(argv[++i], 0);
|
| 141 |
|
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break;
|
| 142 |
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case 'a':
|
| 143 |
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nbicols = 0;
|
| 144 |
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break;
|
| 145 |
|
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case 'd':
|
| 146 |
|
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if (isdigit(argv[i][3]))
|
| 147 |
|
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nbicols = atoi(argv[i]+3);
|
| 148 |
|
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else
|
| 149 |
|
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nbicols = 1;
|
| 150 |
|
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break;
|
| 151 |
|
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case 'f':
|
| 152 |
|
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if (isdigit(argv[i][3]))
|
| 153 |
|
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nbicols = -atoi(argv[i]+3);
|
| 154 |
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else
|
| 155 |
|
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nbicols = -1;
|
| 156 |
|
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break;
|
| 157 |
|
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default:
|
| 158 |
|
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goto userr;
|
| 159 |
|
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}
|
| 160 |
greg |
1.1 |
break;
|
| 161 |
|
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case 'o':
|
| 162 |
greg |
1.3 |
switch (argv[i][2]) {
|
| 163 |
|
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case '\0':
|
| 164 |
|
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bocols = 0;
|
| 165 |
|
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readfmt(argv[++i], 1);
|
| 166 |
|
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break;
|
| 167 |
|
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case 'a':
|
| 168 |
|
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bocols = 0;
|
| 169 |
|
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break;
|
| 170 |
|
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case 'd':
|
| 171 |
|
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bocols = 1;
|
| 172 |
|
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break;
|
| 173 |
|
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case 'f':
|
| 174 |
|
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bocols = -1;
|
| 175 |
|
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break;
|
| 176 |
|
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}
|
| 177 |
greg |
1.1 |
break;
|
| 178 |
|
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case 'w':
|
| 179 |
|
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nowarn = !nowarn;
|
| 180 |
|
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break;
|
| 181 |
|
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case 'u':
|
| 182 |
|
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unbuff = !unbuff;
|
| 183 |
|
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break;
|
| 184 |
greg |
1.3 |
default:;
|
| 185 |
|
|
userr:
|
| 186 |
greg |
1.1 |
eputs("Usage: ");
|
| 187 |
|
|
eputs(argv[0]);
|
| 188 |
|
|
eputs(" [-b][-l][-n][-w][-u][-tS][-s svar=sval][-e expr][-f source][-i infmt][-o outfmt] [file]\n");
|
| 189 |
|
|
quit(1);
|
| 190 |
|
|
}
|
| 191 |
|
|
|
| 192 |
|
|
if (noinput) { /* produce a single output record */
|
| 193 |
|
|
eclock++;
|
| 194 |
|
|
putout();
|
| 195 |
|
|
quit(0);
|
| 196 |
|
|
}
|
| 197 |
|
|
|
| 198 |
|
|
if (blnkeq) /* for efficiency */
|
| 199 |
|
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nbsynch();
|
| 200 |
|
|
|
| 201 |
|
|
if (i == argc) /* from stdin */
|
| 202 |
|
|
execute(NULL);
|
| 203 |
|
|
else /* from one or more files */
|
| 204 |
|
|
for ( ; i < argc; i++)
|
| 205 |
|
|
execute(argv[i]);
|
| 206 |
|
|
|
| 207 |
|
|
quit(0);
|
| 208 |
|
|
}
|
| 209 |
|
|
|
| 210 |
|
|
|
| 211 |
schorsch |
1.5 |
static void
|
| 212 |
|
|
nbsynch(void) /* non-blank starting synch character */
|
| 213 |
greg |
1.1 |
{
|
| 214 |
|
|
if (inpfmt == NULL || (inpfmt->type & F_TYP) != T_LIT)
|
| 215 |
|
|
return;
|
| 216 |
|
|
while (isblnk(*inpfmt->f.sl))
|
| 217 |
|
|
inpfmt->f.sl++;
|
| 218 |
|
|
if (!*inpfmt->f.sl)
|
| 219 |
|
|
inpfmt = inpfmt->next;
|
| 220 |
|
|
}
|
| 221 |
|
|
|
| 222 |
|
|
|
| 223 |
greg |
1.3 |
int
|
| 224 |
schorsch |
1.5 |
getinputrec( /* get next input record */
|
| 225 |
|
|
FILE *fp
|
| 226 |
|
|
)
|
| 227 |
greg |
1.3 |
{
|
| 228 |
|
|
if (inpfmt != NULL)
|
| 229 |
|
|
return(getrec());
|
| 230 |
|
|
if (nbicols > 0)
|
| 231 |
|
|
return(fread(inpbuf, sizeof(double),
|
| 232 |
|
|
nbicols, fp) == nbicols);
|
| 233 |
|
|
if (nbicols < 0)
|
| 234 |
|
|
return(fread(inpbuf, sizeof(float),
|
| 235 |
|
|
-nbicols, fp) == -nbicols);
|
| 236 |
|
|
return(fgets(inpbuf, INBSIZ, fp) != NULL);
|
| 237 |
|
|
}
|
| 238 |
|
|
|
| 239 |
|
|
|
| 240 |
schorsch |
1.5 |
static void
|
| 241 |
|
|
execute( /* process a file */
|
| 242 |
|
|
char *file
|
| 243 |
|
|
)
|
| 244 |
greg |
1.1 |
{
|
| 245 |
|
|
int conditional = vardefined("cond");
|
| 246 |
|
|
long nrecs = 0;
|
| 247 |
|
|
long nout = 0;
|
| 248 |
|
|
FILE *fp;
|
| 249 |
|
|
|
| 250 |
|
|
if (file == NULL)
|
| 251 |
|
|
fp = stdin;
|
| 252 |
|
|
else if ((fp = fopen(file, "r")) == NULL) {
|
| 253 |
|
|
eputs(file);
|
| 254 |
|
|
eputs(": cannot open\n");
|
| 255 |
|
|
quit(1);
|
| 256 |
|
|
}
|
| 257 |
|
|
if (inpfmt != NULL)
|
| 258 |
|
|
initinp(fp);
|
| 259 |
greg |
1.3 |
|
| 260 |
|
|
while (getinputrec(fp)) {
|
| 261 |
greg |
1.1 |
varset("recno", '=', (double)++nrecs);
|
| 262 |
|
|
colflg = 0;
|
| 263 |
|
|
eclock++;
|
| 264 |
|
|
if (!conditional || varvalue("cond") > 0.0) {
|
| 265 |
|
|
varset("outno", '=', (double)++nout);
|
| 266 |
|
|
putout();
|
| 267 |
|
|
}
|
| 268 |
|
|
}
|
| 269 |
|
|
fclose(fp);
|
| 270 |
|
|
}
|
| 271 |
|
|
|
| 272 |
|
|
|
| 273 |
schorsch |
1.5 |
static void
|
| 274 |
|
|
putout(void) /* produce an output record */
|
| 275 |
greg |
1.1 |
{
|
| 276 |
|
|
|
| 277 |
|
|
colpos = 0;
|
| 278 |
|
|
if (outfmt != NULL)
|
| 279 |
|
|
putrec();
|
| 280 |
greg |
1.3 |
else if (bocols)
|
| 281 |
|
|
chanout(bchanset);
|
| 282 |
greg |
1.1 |
else
|
| 283 |
|
|
chanout(chanset);
|
| 284 |
greg |
1.4 |
if (colpos && !bocols)
|
| 285 |
greg |
1.1 |
putchar('\n');
|
| 286 |
|
|
if (unbuff)
|
| 287 |
|
|
fflush(stdout);
|
| 288 |
|
|
}
|
| 289 |
|
|
|
| 290 |
|
|
|
| 291 |
|
|
double
|
| 292 |
schorsch |
1.5 |
chanvalue( /* return value for column n */
|
| 293 |
|
|
int n
|
| 294 |
|
|
)
|
| 295 |
greg |
1.1 |
{
|
| 296 |
|
|
int i;
|
| 297 |
|
|
register char *cp;
|
| 298 |
|
|
|
| 299 |
|
|
if (noinput || inpfmt != NULL) {
|
| 300 |
|
|
eputs("no column input\n");
|
| 301 |
|
|
quit(1);
|
| 302 |
|
|
}
|
| 303 |
|
|
if (n < 1) {
|
| 304 |
|
|
eputs("illegal channel number\n");
|
| 305 |
|
|
quit(1);
|
| 306 |
|
|
}
|
| 307 |
greg |
1.3 |
if (nbicols > 0) {
|
| 308 |
|
|
if (n > nbicols)
|
| 309 |
|
|
return(0.0);
|
| 310 |
|
|
cp = inpbuf + (n-1)*sizeof(double);
|
| 311 |
|
|
return(*(double *)cp);
|
| 312 |
|
|
}
|
| 313 |
|
|
if (nbicols < 0) {
|
| 314 |
|
|
if (n > -nbicols)
|
| 315 |
|
|
return(0.0);
|
| 316 |
|
|
cp = inpbuf + (n-1)*sizeof(float);
|
| 317 |
|
|
return(*(float *)cp);
|
| 318 |
|
|
}
|
| 319 |
greg |
1.1 |
if (n <= MAXCOL && colflg & 1L<<(n-1))
|
| 320 |
|
|
return(colval[n-1]);
|
| 321 |
|
|
|
| 322 |
|
|
cp = inpbuf;
|
| 323 |
|
|
for (i = 1; i < n; i++)
|
| 324 |
|
|
if (blnkeq && isspace(sepchar)) {
|
| 325 |
|
|
while (isspace(*cp))
|
| 326 |
|
|
cp++;
|
| 327 |
|
|
while (*cp && !isspace(*cp))
|
| 328 |
|
|
cp++;
|
| 329 |
|
|
} else
|
| 330 |
|
|
while (*cp && *cp++ != sepchar)
|
| 331 |
|
|
;
|
| 332 |
|
|
|
| 333 |
|
|
while (isspace(*cp)) /* some atof()'s don't like tabs */
|
| 334 |
|
|
cp++;
|
| 335 |
|
|
|
| 336 |
|
|
if (n <= MAXCOL) {
|
| 337 |
|
|
colflg |= 1L<<(n-1);
|
| 338 |
|
|
return(colval[n-1] = atof(cp));
|
| 339 |
|
|
} else
|
| 340 |
|
|
return(atof(cp));
|
| 341 |
|
|
}
|
| 342 |
|
|
|
| 343 |
|
|
|
| 344 |
greg |
1.3 |
void
|
| 345 |
schorsch |
1.5 |
chanset( /* output column n */
|
| 346 |
|
|
int n,
|
| 347 |
|
|
double v
|
| 348 |
|
|
)
|
| 349 |
greg |
1.1 |
{
|
| 350 |
|
|
if (colpos == 0) /* no leading separator */
|
| 351 |
|
|
colpos = 1;
|
| 352 |
|
|
while (colpos < n) {
|
| 353 |
|
|
putchar(sepchar);
|
| 354 |
|
|
colpos++;
|
| 355 |
|
|
}
|
| 356 |
|
|
printf("%.9g", v);
|
| 357 |
greg |
1.3 |
}
|
| 358 |
|
|
|
| 359 |
|
|
|
| 360 |
|
|
void
|
| 361 |
schorsch |
1.5 |
bchanset( /* output binary channel n */
|
| 362 |
|
|
int n,
|
| 363 |
|
|
double v
|
| 364 |
|
|
)
|
| 365 |
greg |
1.3 |
{
|
| 366 |
|
|
static char zerobuf[sizeof(double)];
|
| 367 |
|
|
|
| 368 |
|
|
while (++colpos < n)
|
| 369 |
|
|
fwrite(zerobuf,
|
| 370 |
|
|
bocols>0 ? sizeof(double) : sizeof(float),
|
| 371 |
|
|
1, stdout);
|
| 372 |
|
|
if (bocols > 0)
|
| 373 |
|
|
fwrite(&v, sizeof(double), 1, stdout);
|
| 374 |
|
|
else {
|
| 375 |
|
|
float fval = v;
|
| 376 |
|
|
fwrite(&fval, sizeof(float), 1, stdout);
|
| 377 |
|
|
}
|
| 378 |
greg |
1.1 |
}
|
| 379 |
|
|
|
| 380 |
|
|
|
| 381 |
schorsch |
1.5 |
static void
|
| 382 |
|
|
readfmt( /* read record format */
|
| 383 |
|
|
char *spec,
|
| 384 |
|
|
int output
|
| 385 |
|
|
)
|
| 386 |
greg |
1.1 |
{
|
| 387 |
|
|
int fd;
|
| 388 |
|
|
char *inptr;
|
| 389 |
|
|
struct field fmt;
|
| 390 |
|
|
int res;
|
| 391 |
|
|
register struct field *f;
|
| 392 |
|
|
/* check for inline format */
|
| 393 |
|
|
for (inptr = spec; *inptr; inptr++)
|
| 394 |
|
|
if (*inptr == '$')
|
| 395 |
|
|
break;
|
| 396 |
|
|
if (*inptr) /* inline */
|
| 397 |
|
|
inptr = spec;
|
| 398 |
|
|
else { /* from file */
|
| 399 |
|
|
if ((fd = open(spec, 0)) == -1) {
|
| 400 |
|
|
eputs(spec);
|
| 401 |
|
|
eputs(": cannot open\n");
|
| 402 |
|
|
quit(1);
|
| 403 |
|
|
}
|
| 404 |
|
|
res = read(fd, inpbuf+1, INBSIZ-1);
|
| 405 |
|
|
if (res <= 0 || res >= INBSIZ-1) {
|
| 406 |
|
|
eputs(spec);
|
| 407 |
|
|
if (res < 0)
|
| 408 |
|
|
eputs(": read error\n");
|
| 409 |
|
|
else if (res == 0)
|
| 410 |
|
|
eputs(": empty file\n");
|
| 411 |
|
|
else if (res >= INBSIZ-1)
|
| 412 |
|
|
eputs(": format too long\n");
|
| 413 |
|
|
quit(1);
|
| 414 |
|
|
}
|
| 415 |
|
|
close(fd);
|
| 416 |
|
|
(inptr=inpbuf+1)[res] = '\0';
|
| 417 |
|
|
}
|
| 418 |
|
|
f = &fmt; /* get fields */
|
| 419 |
|
|
while ((res = readfield(&inptr)) != F_NUL) {
|
| 420 |
|
|
f->next = (struct field *)emalloc(sizeof(struct field));
|
| 421 |
|
|
f = f->next;
|
| 422 |
|
|
f->type = res;
|
| 423 |
|
|
switch (res & F_TYP) {
|
| 424 |
|
|
case T_LIT:
|
| 425 |
|
|
f->f.sl = savqstr(inpbuf);
|
| 426 |
|
|
break;
|
| 427 |
|
|
case T_STR:
|
| 428 |
|
|
f->f.sv = getsvar(inpbuf);
|
| 429 |
|
|
break;
|
| 430 |
|
|
case T_NUM:
|
| 431 |
|
|
if (output)
|
| 432 |
|
|
f->f.ne = eparse(inpbuf);
|
| 433 |
|
|
else
|
| 434 |
|
|
f->f.nv = savestr(inpbuf);
|
| 435 |
|
|
break;
|
| 436 |
|
|
}
|
| 437 |
|
|
/* add final newline if necessary */
|
| 438 |
|
|
if (!igneol && *inptr == '\0' && inptr[-1] != '\n')
|
| 439 |
|
|
inptr = "\n";
|
| 440 |
|
|
}
|
| 441 |
|
|
f->next = NULL;
|
| 442 |
|
|
if (output)
|
| 443 |
|
|
outfmt = fmt.next;
|
| 444 |
|
|
else
|
| 445 |
|
|
inpfmt = fmt.next;
|
| 446 |
|
|
}
|
| 447 |
|
|
|
| 448 |
|
|
|
| 449 |
schorsch |
1.5 |
static int
|
| 450 |
|
|
readfield( /* get next field in format */
|
| 451 |
|
|
register char **pp
|
| 452 |
|
|
)
|
| 453 |
greg |
1.1 |
{
|
| 454 |
|
|
int type = F_NUL;
|
| 455 |
|
|
int width = 0;
|
| 456 |
|
|
register char *cp;
|
| 457 |
|
|
|
| 458 |
|
|
cp = inpbuf;
|
| 459 |
|
|
while (cp < &inpbuf[INBSIZ-1] && **pp != '\0') {
|
| 460 |
|
|
width++;
|
| 461 |
|
|
switch (type) {
|
| 462 |
|
|
case F_NUL:
|
| 463 |
|
|
if (**pp == '$') {
|
| 464 |
|
|
(*pp)++;
|
| 465 |
|
|
width++;
|
| 466 |
|
|
if (**pp == '{') {
|
| 467 |
|
|
type = T_NUM;
|
| 468 |
|
|
(*pp)++;
|
| 469 |
|
|
continue;
|
| 470 |
|
|
} else if (**pp == '(') {
|
| 471 |
|
|
type = T_STR;
|
| 472 |
|
|
(*pp)++;
|
| 473 |
|
|
continue;
|
| 474 |
|
|
} else if (**pp != '$') {
|
| 475 |
|
|
eputs("format error\n");
|
| 476 |
|
|
quit(1);
|
| 477 |
|
|
}
|
| 478 |
|
|
width--;
|
| 479 |
|
|
}
|
| 480 |
|
|
type = T_LIT;
|
| 481 |
|
|
*cp++ = *(*pp)++;
|
| 482 |
|
|
continue;
|
| 483 |
|
|
case T_LIT:
|
| 484 |
|
|
if (**pp == '$') {
|
| 485 |
|
|
width--;
|
| 486 |
|
|
break;
|
| 487 |
|
|
}
|
| 488 |
|
|
*cp++ = *(*pp)++;
|
| 489 |
|
|
continue;
|
| 490 |
|
|
case T_NUM:
|
| 491 |
|
|
if (**pp == '}') {
|
| 492 |
|
|
(*pp)++;
|
| 493 |
|
|
break;
|
| 494 |
|
|
}
|
| 495 |
|
|
if (!isspace(**pp))
|
| 496 |
|
|
*cp++ = **pp;
|
| 497 |
|
|
(*pp)++;
|
| 498 |
|
|
continue;
|
| 499 |
|
|
case T_STR:
|
| 500 |
|
|
if (**pp == ')') {
|
| 501 |
|
|
(*pp)++;
|
| 502 |
|
|
break;
|
| 503 |
|
|
}
|
| 504 |
|
|
if (!isspace(**pp))
|
| 505 |
|
|
*cp++ = **pp;
|
| 506 |
|
|
(*pp)++;
|
| 507 |
|
|
continue;
|
| 508 |
|
|
}
|
| 509 |
|
|
break;
|
| 510 |
|
|
}
|
| 511 |
|
|
*cp = '\0';
|
| 512 |
|
|
return(type | width);
|
| 513 |
|
|
}
|
| 514 |
|
|
|
| 515 |
|
|
|
| 516 |
|
|
struct strvar *
|
| 517 |
schorsch |
1.5 |
getsvar( /* get string variable */
|
| 518 |
|
|
char *svname
|
| 519 |
|
|
)
|
| 520 |
greg |
1.1 |
{
|
| 521 |
|
|
register struct strvar *sv;
|
| 522 |
|
|
|
| 523 |
|
|
for (sv = svhead; sv != NULL; sv = sv->next)
|
| 524 |
|
|
if (!strcmp(sv->name, svname))
|
| 525 |
|
|
return(sv);
|
| 526 |
|
|
sv = (struct strvar *)emalloc(sizeof(struct strvar));
|
| 527 |
|
|
sv->name = savqstr(svname);
|
| 528 |
|
|
sv->val = sv->preset = NULL;
|
| 529 |
|
|
sv->next = svhead;
|
| 530 |
|
|
svhead = sv;
|
| 531 |
|
|
return(sv);
|
| 532 |
|
|
}
|
| 533 |
|
|
|
| 534 |
|
|
|
| 535 |
schorsch |
1.5 |
static void
|
| 536 |
|
|
svpreset( /* preset a string variable */
|
| 537 |
|
|
char *eqn
|
| 538 |
|
|
)
|
| 539 |
greg |
1.1 |
{
|
| 540 |
|
|
register struct strvar *sv;
|
| 541 |
|
|
register char *val;
|
| 542 |
|
|
|
| 543 |
|
|
for (val = eqn; *val != '='; val++)
|
| 544 |
|
|
if (!*val)
|
| 545 |
|
|
return;
|
| 546 |
|
|
*val++ = '\0';
|
| 547 |
|
|
sv = getsvar(eqn);
|
| 548 |
|
|
if (sv->preset != NULL)
|
| 549 |
|
|
freqstr(sv->preset);
|
| 550 |
|
|
if (sv->val != NULL)
|
| 551 |
|
|
freqstr(sv->val);
|
| 552 |
|
|
sv->val = sv->preset = savqstr(val);
|
| 553 |
|
|
*--val = '=';
|
| 554 |
|
|
}
|
| 555 |
|
|
|
| 556 |
|
|
|
| 557 |
schorsch |
1.5 |
static void
|
| 558 |
|
|
clearrec(void) /* clear input record variables */
|
| 559 |
greg |
1.1 |
{
|
| 560 |
|
|
register struct field *f;
|
| 561 |
|
|
|
| 562 |
|
|
for (f = inpfmt; f != NULL; f = f->next)
|
| 563 |
|
|
switch (f->type & F_TYP) {
|
| 564 |
|
|
case T_NUM:
|
| 565 |
|
|
dremove(f->f.nv);
|
| 566 |
|
|
break;
|
| 567 |
|
|
case T_STR:
|
| 568 |
|
|
if (f->f.sv->val != f->f.sv->preset) {
|
| 569 |
|
|
freqstr(f->f.sv->val);
|
| 570 |
|
|
f->f.sv->val = f->f.sv->preset;
|
| 571 |
|
|
}
|
| 572 |
|
|
break;
|
| 573 |
|
|
}
|
| 574 |
|
|
}
|
| 575 |
|
|
|
| 576 |
|
|
|
| 577 |
schorsch |
1.5 |
static int
|
| 578 |
|
|
getrec(void) /* get next record from file */
|
| 579 |
greg |
1.1 |
{
|
| 580 |
|
|
int eatline;
|
| 581 |
|
|
register struct field *f;
|
| 582 |
|
|
|
| 583 |
|
|
while (ipb.chr != EOF) {
|
| 584 |
|
|
eatline = !igneol && ipb.chr != '\n';
|
| 585 |
|
|
if (blnkeq) /* beware of nbsynch() */
|
| 586 |
|
|
while (isblnk(ipb.chr))
|
| 587 |
|
|
scaninp();
|
| 588 |
|
|
clearrec(); /* start with fresh record */
|
| 589 |
|
|
for (f = inpfmt; f != NULL; f = f->next)
|
| 590 |
|
|
if (getfield(f) == -1)
|
| 591 |
|
|
break;
|
| 592 |
|
|
if (f == NULL) {
|
| 593 |
|
|
advinp();
|
| 594 |
|
|
return(1);
|
| 595 |
|
|
}
|
| 596 |
|
|
resetinp();
|
| 597 |
|
|
if (eatline) { /* eat rest of line */
|
| 598 |
|
|
while (ipb.chr != '\n') {
|
| 599 |
|
|
if (ipb.chr == EOF)
|
| 600 |
|
|
return(0);
|
| 601 |
|
|
scaninp();
|
| 602 |
|
|
}
|
| 603 |
|
|
scaninp();
|
| 604 |
|
|
advinp();
|
| 605 |
|
|
}
|
| 606 |
|
|
}
|
| 607 |
|
|
return(0);
|
| 608 |
|
|
}
|
| 609 |
|
|
|
| 610 |
|
|
|
| 611 |
schorsch |
1.5 |
static int
|
| 612 |
|
|
getfield( /* get next field */
|
| 613 |
|
|
register struct field *f
|
| 614 |
|
|
)
|
| 615 |
greg |
1.1 |
{
|
| 616 |
schorsch |
1.6 |
static char buf[RMAXWORD+1]; /* no recursion! */
|
| 617 |
greg |
1.1 |
int delim, inword;
|
| 618 |
|
|
double d;
|
| 619 |
|
|
char *np;
|
| 620 |
|
|
register char *cp;
|
| 621 |
|
|
|
| 622 |
|
|
switch (f->type & F_TYP) {
|
| 623 |
|
|
case T_LIT:
|
| 624 |
|
|
cp = f->f.sl;
|
| 625 |
|
|
do {
|
| 626 |
|
|
if (blnkeq && isblnk(*cp)) {
|
| 627 |
|
|
if (!isblnk(ipb.chr))
|
| 628 |
|
|
return(-1);
|
| 629 |
|
|
do
|
| 630 |
|
|
cp++;
|
| 631 |
|
|
while (isblnk(*cp));
|
| 632 |
|
|
do
|
| 633 |
|
|
scaninp();
|
| 634 |
|
|
while (isblnk(ipb.chr));
|
| 635 |
|
|
} else if (*cp == ipb.chr) {
|
| 636 |
|
|
cp++;
|
| 637 |
|
|
scaninp();
|
| 638 |
|
|
} else
|
| 639 |
|
|
return(-1);
|
| 640 |
|
|
} while (*cp);
|
| 641 |
|
|
return(0);
|
| 642 |
|
|
case T_STR:
|
| 643 |
|
|
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT)
|
| 644 |
|
|
delim = EOF;
|
| 645 |
|
|
else
|
| 646 |
|
|
delim = f->next->f.sl[0];
|
| 647 |
|
|
cp = buf;
|
| 648 |
|
|
do {
|
| 649 |
|
|
if (ipb.chr == EOF)
|
| 650 |
|
|
inword = 0;
|
| 651 |
|
|
else if (blnkeq && delim != EOF)
|
| 652 |
|
|
inword = isblnk(delim) ?
|
| 653 |
|
|
!isblnk(ipb.chr)
|
| 654 |
|
|
: ipb.chr != delim;
|
| 655 |
|
|
else
|
| 656 |
|
|
inword = cp-buf < (f->type & F_WID);
|
| 657 |
|
|
if (inword) {
|
| 658 |
|
|
*cp++ = ipb.chr;
|
| 659 |
|
|
scaninp();
|
| 660 |
|
|
}
|
| 661 |
schorsch |
1.6 |
} while (inword && cp < &buf[RMAXWORD]);
|
| 662 |
greg |
1.1 |
*cp = '\0';
|
| 663 |
|
|
if (f->f.sv->val == NULL)
|
| 664 |
|
|
f->f.sv->val = savqstr(buf); /* first setting */
|
| 665 |
|
|
else if (strcmp(f->f.sv->val, buf))
|
| 666 |
|
|
return(-1); /* doesn't match! */
|
| 667 |
|
|
return(0);
|
| 668 |
|
|
case T_NUM:
|
| 669 |
|
|
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT)
|
| 670 |
|
|
delim = EOF;
|
| 671 |
|
|
else
|
| 672 |
|
|
delim = f->next->f.sl[0];
|
| 673 |
|
|
np = NULL;
|
| 674 |
|
|
cp = buf;
|
| 675 |
|
|
do {
|
| 676 |
|
|
if (!((np==NULL&&isblnk(ipb.chr)) || isnum(ipb.chr)))
|
| 677 |
|
|
inword = 0;
|
| 678 |
|
|
else if (blnkeq && delim != EOF)
|
| 679 |
|
|
inword = isblnk(delim) ?
|
| 680 |
|
|
!isblnk(ipb.chr)
|
| 681 |
|
|
: ipb.chr != delim;
|
| 682 |
|
|
else
|
| 683 |
|
|
inword = cp-buf < (f->type & F_WID);
|
| 684 |
|
|
if (inword) {
|
| 685 |
|
|
if (np==NULL && !isblnk(ipb.chr))
|
| 686 |
|
|
np = cp;
|
| 687 |
|
|
*cp++ = ipb.chr;
|
| 688 |
|
|
scaninp();
|
| 689 |
|
|
}
|
| 690 |
schorsch |
1.6 |
} while (inword && cp < &buf[RMAXWORD]);
|
| 691 |
greg |
1.1 |
*cp = '\0';
|
| 692 |
|
|
d = np==NULL ? 0. : atof(np);
|
| 693 |
|
|
if (!vardefined(f->f.nv))
|
| 694 |
|
|
varset(f->f.nv, '=', d); /* first setting */
|
| 695 |
|
|
else if ((d = (varvalue(f->f.nv)-d)/(d==0.?1.:d)) > .001
|
| 696 |
|
|
|| d < -.001)
|
| 697 |
|
|
return(-1); /* doesn't match! */
|
| 698 |
|
|
return(0);
|
| 699 |
|
|
}
|
| 700 |
schorsch |
1.5 |
return -1; /* pro forma return */
|
| 701 |
greg |
1.1 |
}
|
| 702 |
|
|
|
| 703 |
|
|
|
| 704 |
schorsch |
1.5 |
static void
|
| 705 |
|
|
putrec(void) /* output a record */
|
| 706 |
greg |
1.1 |
{
|
| 707 |
|
|
char fmt[32];
|
| 708 |
|
|
register int n;
|
| 709 |
|
|
register struct field *f;
|
| 710 |
|
|
int adlast, adnext;
|
| 711 |
|
|
|
| 712 |
|
|
adlast = 0;
|
| 713 |
|
|
for (f = outfmt; f != NULL; f = f->next) {
|
| 714 |
|
|
adnext = blnkeq &&
|
| 715 |
|
|
f->next != NULL &&
|
| 716 |
|
|
!( (f->next->type&F_TYP) == T_LIT &&
|
| 717 |
|
|
f->next->f.sl[0] == ' ' );
|
| 718 |
|
|
switch (f->type & F_TYP) {
|
| 719 |
|
|
case T_LIT:
|
| 720 |
|
|
fputs(f->f.sl, stdout);
|
| 721 |
|
|
adlast = f->f.sl[(f->type&F_WID)-1] != ' ';
|
| 722 |
|
|
break;
|
| 723 |
|
|
case T_STR:
|
| 724 |
|
|
if (f->f.sv->val == NULL) {
|
| 725 |
|
|
eputs(f->f.sv->name);
|
| 726 |
|
|
eputs(": undefined string\n");
|
| 727 |
|
|
quit(1);
|
| 728 |
|
|
}
|
| 729 |
|
|
n = (int)(f->type & F_WID) - strlen(f->f.sv->val);
|
| 730 |
|
|
if (adlast)
|
| 731 |
|
|
fputs(f->f.sv->val, stdout);
|
| 732 |
|
|
if (!(adlast && adnext))
|
| 733 |
|
|
while (n-- > 0)
|
| 734 |
|
|
putchar(' ');
|
| 735 |
|
|
if (!adlast)
|
| 736 |
|
|
fputs(f->f.sv->val, stdout);
|
| 737 |
|
|
adlast = 1;
|
| 738 |
|
|
break;
|
| 739 |
|
|
case T_NUM:
|
| 740 |
|
|
n = f->type & F_WID;
|
| 741 |
|
|
if (adlast && adnext)
|
| 742 |
|
|
strcpy(fmt, "%g");
|
| 743 |
|
|
else if (adlast)
|
| 744 |
|
|
sprintf(fmt, "%%-%dg", n);
|
| 745 |
|
|
else
|
| 746 |
|
|
sprintf(fmt, "%%%dg", n);
|
| 747 |
|
|
printf(fmt, evalue(f->f.ne));
|
| 748 |
|
|
adlast = 1;
|
| 749 |
|
|
break;
|
| 750 |
|
|
}
|
| 751 |
|
|
}
|
| 752 |
|
|
}
|
| 753 |
|
|
|
| 754 |
|
|
|
| 755 |
schorsch |
1.5 |
static void
|
| 756 |
|
|
initinp(FILE *fp) /* prepare lookahead buffer */
|
| 757 |
|
|
|
| 758 |
greg |
1.1 |
{
|
| 759 |
|
|
ipb.fin = fp;
|
| 760 |
|
|
ipb.beg = ipb.end = inpbuf;
|
| 761 |
|
|
ipb.pos = inpbuf-1; /* position before beginning */
|
| 762 |
|
|
ipb.chr = '\0';
|
| 763 |
|
|
scaninp();
|
| 764 |
|
|
}
|
| 765 |
|
|
|
| 766 |
|
|
|
| 767 |
schorsch |
1.5 |
static void
|
| 768 |
|
|
scaninp(void) /* scan next character */
|
| 769 |
greg |
1.1 |
{
|
| 770 |
|
|
if (ipb.chr == EOF)
|
| 771 |
|
|
return;
|
| 772 |
|
|
if (++ipb.pos >= &inpbuf[INBSIZ])
|
| 773 |
|
|
ipb.pos = inpbuf;
|
| 774 |
|
|
if (ipb.pos == ipb.end) { /* new character */
|
| 775 |
|
|
if ((ipb.chr = getc(ipb.fin)) != EOF) {
|
| 776 |
|
|
*ipb.end = ipb.chr;
|
| 777 |
|
|
if (++ipb.end >= &inpbuf[INBSIZ])
|
| 778 |
|
|
ipb.end = inpbuf;
|
| 779 |
|
|
if (ipb.end == ipb.beg)
|
| 780 |
|
|
ipb.beg = NULL;
|
| 781 |
|
|
}
|
| 782 |
|
|
} else
|
| 783 |
|
|
ipb.chr = *ipb.pos;
|
| 784 |
|
|
}
|
| 785 |
|
|
|
| 786 |
|
|
|
| 787 |
schorsch |
1.5 |
static void
|
| 788 |
|
|
advinp(void) /* move home to current position */
|
| 789 |
greg |
1.1 |
{
|
| 790 |
|
|
ipb.beg = ipb.pos;
|
| 791 |
|
|
}
|
| 792 |
|
|
|
| 793 |
|
|
|
| 794 |
schorsch |
1.5 |
static void
|
| 795 |
|
|
resetinp(void) /* rewind position and advance 1 */
|
| 796 |
greg |
1.1 |
{
|
| 797 |
|
|
if (ipb.beg == NULL) /* full */
|
| 798 |
|
|
ipb.beg = ipb.end;
|
| 799 |
|
|
ipb.pos = ipb.beg;
|
| 800 |
|
|
ipb.chr = *ipb.pos;
|
| 801 |
|
|
if (++ipb.beg >= &inpbuf[INBSIZ])
|
| 802 |
|
|
ipb.beg = inpbuf;
|
| 803 |
|
|
scaninp();
|
| 804 |
|
|
}
|
| 805 |
|
|
|
| 806 |
|
|
|
| 807 |
|
|
void
|
| 808 |
schorsch |
1.5 |
eputs(char *msg)
|
| 809 |
greg |
1.1 |
{
|
| 810 |
|
|
fputs(msg, stderr);
|
| 811 |
|
|
}
|
| 812 |
|
|
|
| 813 |
|
|
|
| 814 |
|
|
void
|
| 815 |
schorsch |
1.5 |
wputs(char *msg)
|
| 816 |
greg |
1.1 |
{
|
| 817 |
|
|
if (!nowarn)
|
| 818 |
|
|
eputs(msg);
|
| 819 |
|
|
}
|
| 820 |
|
|
|
| 821 |
|
|
|
| 822 |
|
|
void
|
| 823 |
schorsch |
1.5 |
quit(int code)
|
| 824 |
greg |
1.1 |
{
|
| 825 |
|
|
exit(code);
|
| 826 |
|
|
}
|
