1 |
greg |
1.1 |
#ifndef lint |
2 |
greg |
1.17 |
static const char RCSid[] = "$Id: rcalc.c,v 1.16 2004/12/10 05:52:14 greg 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 |
schorsch |
1.11 |
#include <fcntl.h> |
12 |
greg |
1.1 |
#include <stdio.h> |
13 |
schorsch |
1.5 |
#include <string.h> |
14 |
greg |
1.1 |
#include <math.h> |
15 |
|
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#include <ctype.h> |
16 |
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|
17 |
schorsch |
1.5 |
#include "platform.h" |
18 |
schorsch |
1.12 |
#include "rterror.h" |
19 |
|
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#include "rtmisc.h" |
20 |
|
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#include "rtio.h" |
21 |
greg |
1.1 |
#include "calcomp.h" |
22 |
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|
23 |
|
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#define isnum(c) (isdigit(c) || (c)=='-' || (c)=='.' \ |
24 |
|
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|| (c)=='+' || (c)=='e' || (c)=='E') |
25 |
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|
26 |
|
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#define isblnk(c) (igneol ? isspace(c) : (c)==' '||(c)=='\t') |
27 |
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|
28 |
greg |
1.16 |
#define INBSIZ 16384 /* longest record */ |
29 |
greg |
1.1 |
#define MAXCOL 32 /* number of columns recorded */ |
30 |
|
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|
31 |
|
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/* field type specifications */ |
32 |
|
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#define F_NUL 0 /* empty */ |
33 |
|
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#define F_TYP 0x7000 /* mask for type */ |
34 |
|
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#define F_WID 0x0fff /* mask for width */ |
35 |
|
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#define T_LIT 0x1000 /* string literal */ |
36 |
|
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#define T_STR 0x2000 /* string variable */ |
37 |
|
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#define T_NUM 0x3000 /* numeric value */ |
38 |
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|
39 |
|
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struct strvar { /* string variable */ |
40 |
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char *name; |
41 |
|
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char *val; |
42 |
|
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char *preset; |
43 |
|
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struct strvar *next; |
44 |
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}; |
45 |
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|
46 |
|
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struct field { /* record format structure */ |
47 |
|
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int type; /* type of field (& width) */ |
48 |
|
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union { |
49 |
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char *sl; /* string literal */ |
50 |
|
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struct strvar *sv; /* string variable */ |
51 |
|
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char *nv; /* numeric variable */ |
52 |
|
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EPNODE *ne; /* numeric expression */ |
53 |
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} f; /* field contents */ |
54 |
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struct field *next; /* next field in record */ |
55 |
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}; |
56 |
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57 |
|
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#define savqstr(s) strcpy(emalloc(strlen(s)+1),s) |
58 |
|
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#define freqstr(s) efree(s) |
59 |
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|
60 |
greg |
1.10 |
static int getinputrec(FILE *fp); |
61 |
schorsch |
1.5 |
static void scaninp(void), advinp(void), resetinp(void); |
62 |
|
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static void putrec(void), putout(void), nbsynch(void); |
63 |
|
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static int getrec(void); |
64 |
|
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static void execute(char *file); |
65 |
|
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static void initinp(FILE *fp); |
66 |
|
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static void svpreset(char *eqn); |
67 |
|
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static void readfmt(char *spec, int output); |
68 |
|
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static int readfield(char **pp); |
69 |
|
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static int getfield(struct field *f); |
70 |
|
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static void chanset(int n, double v); |
71 |
|
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static void bchanset(int n, double v); |
72 |
|
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static struct strvar* getsvar(char *svname); |
73 |
greg |
1.10 |
static double l_in(char *); |
74 |
greg |
1.1 |
|
75 |
|
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struct field *inpfmt = NULL; /* input record format */ |
76 |
|
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struct field *outfmt = NULL; /* output record structure */ |
77 |
|
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struct strvar *svhead = NULL; /* string variables */ |
78 |
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|
79 |
|
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int blnkeq = 1; /* blanks compare equal? */ |
80 |
|
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int igneol = 0; /* ignore end of line? */ |
81 |
greg |
1.13 |
int passive = 0; /* passive mode (transmit unmatched input) */ |
82 |
greg |
1.1 |
char sepchar = '\t'; /* input/output separator */ |
83 |
|
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int noinput = 0; /* no input records? */ |
84 |
greg |
1.3 |
int nbicols = 0; /* number of binary input columns */ |
85 |
|
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int bocols = 0; /* produce binary output columns */ |
86 |
greg |
1.1 |
char inpbuf[INBSIZ]; /* input buffer */ |
87 |
|
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double colval[MAXCOL]; /* input column values */ |
88 |
|
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unsigned long colflg = 0; /* column retrieved flags */ |
89 |
|
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int colpos; /* output column position */ |
90 |
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|
91 |
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int nowarn = 0; /* non-fatal diagnostic output */ |
92 |
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int unbuff = 0; /* unbuffered output (flush each record) */ |
93 |
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|
94 |
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struct { |
95 |
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FILE *fin; /* input file */ |
96 |
|
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int chr; /* next character */ |
97 |
|
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char *beg; /* home position */ |
98 |
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char *pos; /* scan position */ |
99 |
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char *end; /* read position */ |
100 |
|
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} ipb; /* circular lookahead buffer */ |
101 |
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102 |
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|
103 |
schorsch |
1.5 |
int |
104 |
|
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main( |
105 |
|
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int argc, |
106 |
|
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char *argv[] |
107 |
|
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) |
108 |
greg |
1.1 |
{ |
109 |
|
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int i; |
110 |
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|
111 |
greg |
1.2 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_OUTCHAN|E_RCONST; |
112 |
|
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esupport &= ~(E_REDEFW); |
113 |
greg |
1.1 |
|
114 |
|
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#ifdef BIGGERLIB |
115 |
|
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biggerlib(); |
116 |
|
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#endif |
117 |
|
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varset("PI", ':', 3.14159265358979323846); |
118 |
greg |
1.10 |
funset("in", 1, '=', &l_in); |
119 |
greg |
1.1 |
|
120 |
|
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
121 |
|
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switch (argv[i][1]) { |
122 |
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case 'b': |
123 |
|
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blnkeq = !blnkeq; |
124 |
|
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break; |
125 |
|
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case 'l': |
126 |
|
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igneol = !igneol; |
127 |
|
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break; |
128 |
greg |
1.13 |
case 'p': |
129 |
|
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passive = !passive; |
130 |
|
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break; |
131 |
greg |
1.1 |
case 't': |
132 |
|
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sepchar = argv[i][2]; |
133 |
|
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break; |
134 |
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case 's': |
135 |
|
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svpreset(argv[++i]); |
136 |
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break; |
137 |
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case 'f': |
138 |
|
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fcompile(argv[++i]); |
139 |
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break; |
140 |
|
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case 'e': |
141 |
|
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scompile(argv[++i], NULL, 0); |
142 |
|
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break; |
143 |
|
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case 'n': |
144 |
|
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noinput = 1; |
145 |
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break; |
146 |
|
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case 'i': |
147 |
greg |
1.3 |
switch (argv[i][2]) { |
148 |
|
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case '\0': |
149 |
|
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nbicols = 0; |
150 |
|
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readfmt(argv[++i], 0); |
151 |
|
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break; |
152 |
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case 'a': |
153 |
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nbicols = 0; |
154 |
|
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break; |
155 |
|
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case 'd': |
156 |
|
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if (isdigit(argv[i][3])) |
157 |
|
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nbicols = atoi(argv[i]+3); |
158 |
|
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else |
159 |
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nbicols = 1; |
160 |
greg |
1.9 |
if (nbicols*sizeof(double) > INBSIZ) { |
161 |
|
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eputs(argv[0]); |
162 |
|
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eputs(": too many input columns\n"); |
163 |
|
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quit(1); |
164 |
|
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} |
165 |
greg |
1.3 |
break; |
166 |
|
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case 'f': |
167 |
|
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if (isdigit(argv[i][3])) |
168 |
|
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nbicols = -atoi(argv[i]+3); |
169 |
|
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else |
170 |
|
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nbicols = -1; |
171 |
greg |
1.9 |
if (-nbicols*sizeof(float) > INBSIZ) { |
172 |
|
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eputs(argv[0]); |
173 |
|
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eputs(": too many input columns\n"); |
174 |
|
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quit(1); |
175 |
|
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} |
176 |
greg |
1.3 |
break; |
177 |
|
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default: |
178 |
|
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goto userr; |
179 |
|
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} |
180 |
greg |
1.1 |
break; |
181 |
|
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case 'o': |
182 |
greg |
1.3 |
switch (argv[i][2]) { |
183 |
|
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case '\0': |
184 |
|
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bocols = 0; |
185 |
|
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readfmt(argv[++i], 1); |
186 |
|
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break; |
187 |
|
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case 'a': |
188 |
|
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bocols = 0; |
189 |
|
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break; |
190 |
|
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case 'd': |
191 |
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bocols = 1; |
192 |
|
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break; |
193 |
|
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case 'f': |
194 |
|
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bocols = -1; |
195 |
|
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break; |
196 |
|
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} |
197 |
greg |
1.1 |
break; |
198 |
|
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case 'w': |
199 |
|
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nowarn = !nowarn; |
200 |
|
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break; |
201 |
|
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case 'u': |
202 |
|
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unbuff = !unbuff; |
203 |
|
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break; |
204 |
greg |
1.3 |
default:; |
205 |
|
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userr: |
206 |
greg |
1.1 |
eputs("Usage: "); |
207 |
|
|
eputs(argv[0]); |
208 |
greg |
1.13 |
eputs(" [-b][-l][-n][-p][-w][-u][-tS][-s svar=sval][-e expr][-f source][-i infmt][-o outfmt] [file]\n"); |
209 |
greg |
1.1 |
quit(1); |
210 |
|
|
} |
211 |
|
|
|
212 |
|
|
if (noinput) { /* produce a single output record */ |
213 |
greg |
1.17 |
if (i < argc) { |
214 |
|
|
eputs(argv[0]); |
215 |
|
|
eputs(": file argument(s) incompatible with -n\n"); |
216 |
|
|
quit(1); |
217 |
|
|
} |
218 |
greg |
1.1 |
eclock++; |
219 |
|
|
putout(); |
220 |
|
|
quit(0); |
221 |
|
|
} |
222 |
|
|
|
223 |
|
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if (blnkeq) /* for efficiency */ |
224 |
|
|
nbsynch(); |
225 |
|
|
|
226 |
|
|
if (i == argc) /* from stdin */ |
227 |
|
|
execute(NULL); |
228 |
|
|
else /* from one or more files */ |
229 |
|
|
for ( ; i < argc; i++) |
230 |
|
|
execute(argv[i]); |
231 |
|
|
|
232 |
|
|
quit(0); |
233 |
schorsch |
1.11 |
return 0; /* pro forma return */ |
234 |
greg |
1.1 |
} |
235 |
|
|
|
236 |
|
|
|
237 |
schorsch |
1.5 |
static void |
238 |
|
|
nbsynch(void) /* non-blank starting synch character */ |
239 |
greg |
1.1 |
{ |
240 |
|
|
if (inpfmt == NULL || (inpfmt->type & F_TYP) != T_LIT) |
241 |
|
|
return; |
242 |
|
|
while (isblnk(*inpfmt->f.sl)) |
243 |
|
|
inpfmt->f.sl++; |
244 |
|
|
if (!*inpfmt->f.sl) |
245 |
|
|
inpfmt = inpfmt->next; |
246 |
|
|
} |
247 |
|
|
|
248 |
|
|
|
249 |
greg |
1.10 |
static int |
250 |
schorsch |
1.5 |
getinputrec( /* get next input record */ |
251 |
|
|
FILE *fp |
252 |
|
|
) |
253 |
greg |
1.3 |
{ |
254 |
|
|
if (inpfmt != NULL) |
255 |
|
|
return(getrec()); |
256 |
|
|
if (nbicols > 0) |
257 |
|
|
return(fread(inpbuf, sizeof(double), |
258 |
|
|
nbicols, fp) == nbicols); |
259 |
|
|
if (nbicols < 0) |
260 |
|
|
return(fread(inpbuf, sizeof(float), |
261 |
|
|
-nbicols, fp) == -nbicols); |
262 |
|
|
return(fgets(inpbuf, INBSIZ, fp) != NULL); |
263 |
|
|
} |
264 |
|
|
|
265 |
|
|
|
266 |
schorsch |
1.5 |
static void |
267 |
|
|
execute( /* process a file */ |
268 |
|
|
char *file |
269 |
|
|
) |
270 |
greg |
1.1 |
{ |
271 |
|
|
int conditional = vardefined("cond"); |
272 |
|
|
long nrecs = 0; |
273 |
|
|
long nout = 0; |
274 |
|
|
FILE *fp; |
275 |
|
|
|
276 |
|
|
if (file == NULL) |
277 |
|
|
fp = stdin; |
278 |
|
|
else if ((fp = fopen(file, "r")) == NULL) { |
279 |
|
|
eputs(file); |
280 |
|
|
eputs(": cannot open\n"); |
281 |
|
|
quit(1); |
282 |
|
|
} |
283 |
|
|
if (inpfmt != NULL) |
284 |
|
|
initinp(fp); |
285 |
greg |
1.3 |
|
286 |
|
|
while (getinputrec(fp)) { |
287 |
greg |
1.1 |
varset("recno", '=', (double)++nrecs); |
288 |
|
|
colflg = 0; |
289 |
|
|
eclock++; |
290 |
|
|
if (!conditional || varvalue("cond") > 0.0) { |
291 |
|
|
varset("outno", '=', (double)++nout); |
292 |
|
|
putout(); |
293 |
|
|
} |
294 |
|
|
} |
295 |
|
|
fclose(fp); |
296 |
|
|
} |
297 |
|
|
|
298 |
|
|
|
299 |
schorsch |
1.5 |
static void |
300 |
|
|
putout(void) /* produce an output record */ |
301 |
greg |
1.1 |
{ |
302 |
|
|
|
303 |
|
|
colpos = 0; |
304 |
|
|
if (outfmt != NULL) |
305 |
|
|
putrec(); |
306 |
greg |
1.3 |
else if (bocols) |
307 |
|
|
chanout(bchanset); |
308 |
greg |
1.1 |
else |
309 |
|
|
chanout(chanset); |
310 |
greg |
1.4 |
if (colpos && !bocols) |
311 |
greg |
1.1 |
putchar('\n'); |
312 |
|
|
if (unbuff) |
313 |
|
|
fflush(stdout); |
314 |
|
|
} |
315 |
|
|
|
316 |
greg |
1.10 |
|
317 |
|
|
static double |
318 |
|
|
l_in(char *funame) /* function call for $channel */ |
319 |
|
|
{ |
320 |
|
|
int n; |
321 |
|
|
register char *cp; |
322 |
|
|
/* get argument as integer */ |
323 |
|
|
n = (int)(argument(1) + .5); |
324 |
|
|
if (n != 0) /* return channel value */ |
325 |
|
|
return(chanvalue(n)); |
326 |
|
|
/* determine number of channels */ |
327 |
|
|
if (noinput || inpfmt != NULL) |
328 |
|
|
return(0); |
329 |
|
|
if (nbicols > 0) |
330 |
|
|
return(nbicols); |
331 |
|
|
if (nbicols < 0) |
332 |
|
|
return(-nbicols); |
333 |
|
|
cp = inpbuf; /* need to count */ |
334 |
|
|
for (n = 0; *cp; ) |
335 |
|
|
if (blnkeq && isspace(sepchar)) { |
336 |
|
|
while (isspace(*cp)) |
337 |
|
|
cp++; |
338 |
|
|
n += *cp != '\0'; |
339 |
|
|
while (*cp && !isspace(*cp)) |
340 |
|
|
cp++; |
341 |
|
|
} else { |
342 |
|
|
n += *cp != '\n'; |
343 |
|
|
while (*cp && *cp++ != sepchar) |
344 |
|
|
; |
345 |
|
|
} |
346 |
|
|
return(n); |
347 |
|
|
} |
348 |
greg |
1.1 |
|
349 |
|
|
double |
350 |
schorsch |
1.5 |
chanvalue( /* return value for column n */ |
351 |
|
|
int n |
352 |
|
|
) |
353 |
greg |
1.1 |
{ |
354 |
|
|
int i; |
355 |
|
|
register char *cp; |
356 |
|
|
|
357 |
|
|
if (noinput || inpfmt != NULL) { |
358 |
|
|
eputs("no column input\n"); |
359 |
|
|
quit(1); |
360 |
|
|
} |
361 |
|
|
if (n < 1) { |
362 |
|
|
eputs("illegal channel number\n"); |
363 |
|
|
quit(1); |
364 |
|
|
} |
365 |
greg |
1.3 |
if (nbicols > 0) { |
366 |
|
|
if (n > nbicols) |
367 |
|
|
return(0.0); |
368 |
|
|
cp = inpbuf + (n-1)*sizeof(double); |
369 |
|
|
return(*(double *)cp); |
370 |
|
|
} |
371 |
|
|
if (nbicols < 0) { |
372 |
|
|
if (n > -nbicols) |
373 |
|
|
return(0.0); |
374 |
|
|
cp = inpbuf + (n-1)*sizeof(float); |
375 |
|
|
return(*(float *)cp); |
376 |
|
|
} |
377 |
greg |
1.1 |
if (n <= MAXCOL && colflg & 1L<<(n-1)) |
378 |
|
|
return(colval[n-1]); |
379 |
|
|
|
380 |
|
|
cp = inpbuf; |
381 |
|
|
for (i = 1; i < n; i++) |
382 |
|
|
if (blnkeq && isspace(sepchar)) { |
383 |
|
|
while (isspace(*cp)) |
384 |
|
|
cp++; |
385 |
|
|
while (*cp && !isspace(*cp)) |
386 |
|
|
cp++; |
387 |
|
|
} else |
388 |
|
|
while (*cp && *cp++ != sepchar) |
389 |
|
|
; |
390 |
|
|
|
391 |
|
|
while (isspace(*cp)) /* some atof()'s don't like tabs */ |
392 |
|
|
cp++; |
393 |
|
|
|
394 |
|
|
if (n <= MAXCOL) { |
395 |
|
|
colflg |= 1L<<(n-1); |
396 |
|
|
return(colval[n-1] = atof(cp)); |
397 |
|
|
} else |
398 |
|
|
return(atof(cp)); |
399 |
|
|
} |
400 |
|
|
|
401 |
|
|
|
402 |
greg |
1.3 |
void |
403 |
schorsch |
1.5 |
chanset( /* output column n */ |
404 |
|
|
int n, |
405 |
|
|
double v |
406 |
|
|
) |
407 |
greg |
1.1 |
{ |
408 |
|
|
if (colpos == 0) /* no leading separator */ |
409 |
|
|
colpos = 1; |
410 |
|
|
while (colpos < n) { |
411 |
|
|
putchar(sepchar); |
412 |
|
|
colpos++; |
413 |
|
|
} |
414 |
|
|
printf("%.9g", v); |
415 |
greg |
1.3 |
} |
416 |
|
|
|
417 |
|
|
|
418 |
|
|
void |
419 |
schorsch |
1.5 |
bchanset( /* output binary channel n */ |
420 |
|
|
int n, |
421 |
|
|
double v |
422 |
|
|
) |
423 |
greg |
1.3 |
{ |
424 |
|
|
static char zerobuf[sizeof(double)]; |
425 |
|
|
|
426 |
|
|
while (++colpos < n) |
427 |
|
|
fwrite(zerobuf, |
428 |
|
|
bocols>0 ? sizeof(double) : sizeof(float), |
429 |
|
|
1, stdout); |
430 |
|
|
if (bocols > 0) |
431 |
|
|
fwrite(&v, sizeof(double), 1, stdout); |
432 |
|
|
else { |
433 |
|
|
float fval = v; |
434 |
|
|
fwrite(&fval, sizeof(float), 1, stdout); |
435 |
|
|
} |
436 |
greg |
1.1 |
} |
437 |
|
|
|
438 |
|
|
|
439 |
schorsch |
1.5 |
static void |
440 |
|
|
readfmt( /* read record format */ |
441 |
|
|
char *spec, |
442 |
|
|
int output |
443 |
|
|
) |
444 |
greg |
1.1 |
{ |
445 |
|
|
int fd; |
446 |
|
|
char *inptr; |
447 |
|
|
struct field fmt; |
448 |
|
|
int res; |
449 |
|
|
register struct field *f; |
450 |
|
|
/* check for inline format */ |
451 |
|
|
for (inptr = spec; *inptr; inptr++) |
452 |
|
|
if (*inptr == '$') |
453 |
|
|
break; |
454 |
|
|
if (*inptr) /* inline */ |
455 |
|
|
inptr = spec; |
456 |
|
|
else { /* from file */ |
457 |
|
|
if ((fd = open(spec, 0)) == -1) { |
458 |
|
|
eputs(spec); |
459 |
|
|
eputs(": cannot open\n"); |
460 |
|
|
quit(1); |
461 |
|
|
} |
462 |
greg |
1.14 |
res = read(fd, inpbuf+2, INBSIZ-2); |
463 |
greg |
1.1 |
if (res <= 0 || res >= INBSIZ-1) { |
464 |
|
|
eputs(spec); |
465 |
|
|
if (res < 0) |
466 |
|
|
eputs(": read error\n"); |
467 |
|
|
else if (res == 0) |
468 |
|
|
eputs(": empty file\n"); |
469 |
|
|
else if (res >= INBSIZ-1) |
470 |
|
|
eputs(": format too long\n"); |
471 |
|
|
quit(1); |
472 |
|
|
} |
473 |
|
|
close(fd); |
474 |
greg |
1.14 |
(inptr=inpbuf+2)[res] = '\0'; |
475 |
greg |
1.1 |
} |
476 |
|
|
f = &fmt; /* get fields */ |
477 |
|
|
while ((res = readfield(&inptr)) != F_NUL) { |
478 |
|
|
f->next = (struct field *)emalloc(sizeof(struct field)); |
479 |
|
|
f = f->next; |
480 |
|
|
f->type = res; |
481 |
|
|
switch (res & F_TYP) { |
482 |
|
|
case T_LIT: |
483 |
|
|
f->f.sl = savqstr(inpbuf); |
484 |
|
|
break; |
485 |
|
|
case T_STR: |
486 |
|
|
f->f.sv = getsvar(inpbuf); |
487 |
|
|
break; |
488 |
|
|
case T_NUM: |
489 |
|
|
if (output) |
490 |
|
|
f->f.ne = eparse(inpbuf); |
491 |
|
|
else |
492 |
|
|
f->f.nv = savestr(inpbuf); |
493 |
|
|
break; |
494 |
|
|
} |
495 |
|
|
/* add final newline if necessary */ |
496 |
|
|
if (!igneol && *inptr == '\0' && inptr[-1] != '\n') |
497 |
|
|
inptr = "\n"; |
498 |
|
|
} |
499 |
|
|
f->next = NULL; |
500 |
|
|
if (output) |
501 |
|
|
outfmt = fmt.next; |
502 |
|
|
else |
503 |
|
|
inpfmt = fmt.next; |
504 |
|
|
} |
505 |
|
|
|
506 |
|
|
|
507 |
schorsch |
1.5 |
static int |
508 |
|
|
readfield( /* get next field in format */ |
509 |
|
|
register char **pp |
510 |
|
|
) |
511 |
greg |
1.1 |
{ |
512 |
|
|
int type = F_NUL; |
513 |
|
|
int width = 0; |
514 |
|
|
register char *cp; |
515 |
|
|
|
516 |
|
|
cp = inpbuf; |
517 |
|
|
while (cp < &inpbuf[INBSIZ-1] && **pp != '\0') { |
518 |
|
|
width++; |
519 |
|
|
switch (type) { |
520 |
|
|
case F_NUL: |
521 |
|
|
if (**pp == '$') { |
522 |
|
|
(*pp)++; |
523 |
|
|
width++; |
524 |
|
|
if (**pp == '{') { |
525 |
|
|
type = T_NUM; |
526 |
|
|
(*pp)++; |
527 |
|
|
continue; |
528 |
|
|
} else if (**pp == '(') { |
529 |
|
|
type = T_STR; |
530 |
|
|
(*pp)++; |
531 |
|
|
continue; |
532 |
|
|
} else if (**pp != '$') { |
533 |
|
|
eputs("format error\n"); |
534 |
|
|
quit(1); |
535 |
|
|
} |
536 |
|
|
width--; |
537 |
|
|
} |
538 |
|
|
type = T_LIT; |
539 |
|
|
*cp++ = *(*pp)++; |
540 |
|
|
continue; |
541 |
|
|
case T_LIT: |
542 |
|
|
if (**pp == '$') { |
543 |
|
|
width--; |
544 |
|
|
break; |
545 |
|
|
} |
546 |
|
|
*cp++ = *(*pp)++; |
547 |
|
|
continue; |
548 |
|
|
case T_NUM: |
549 |
|
|
if (**pp == '}') { |
550 |
|
|
(*pp)++; |
551 |
|
|
break; |
552 |
|
|
} |
553 |
|
|
if (!isspace(**pp)) |
554 |
|
|
*cp++ = **pp; |
555 |
|
|
(*pp)++; |
556 |
|
|
continue; |
557 |
|
|
case T_STR: |
558 |
|
|
if (**pp == ')') { |
559 |
|
|
(*pp)++; |
560 |
|
|
break; |
561 |
|
|
} |
562 |
|
|
if (!isspace(**pp)) |
563 |
|
|
*cp++ = **pp; |
564 |
|
|
(*pp)++; |
565 |
|
|
continue; |
566 |
|
|
} |
567 |
|
|
break; |
568 |
|
|
} |
569 |
|
|
*cp = '\0'; |
570 |
|
|
return(type | width); |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
|
574 |
|
|
struct strvar * |
575 |
schorsch |
1.5 |
getsvar( /* get string variable */ |
576 |
|
|
char *svname |
577 |
|
|
) |
578 |
greg |
1.1 |
{ |
579 |
|
|
register struct strvar *sv; |
580 |
|
|
|
581 |
|
|
for (sv = svhead; sv != NULL; sv = sv->next) |
582 |
|
|
if (!strcmp(sv->name, svname)) |
583 |
|
|
return(sv); |
584 |
|
|
sv = (struct strvar *)emalloc(sizeof(struct strvar)); |
585 |
|
|
sv->name = savqstr(svname); |
586 |
|
|
sv->val = sv->preset = NULL; |
587 |
|
|
sv->next = svhead; |
588 |
|
|
svhead = sv; |
589 |
|
|
return(sv); |
590 |
|
|
} |
591 |
|
|
|
592 |
|
|
|
593 |
schorsch |
1.5 |
static void |
594 |
|
|
svpreset( /* preset a string variable */ |
595 |
|
|
char *eqn |
596 |
|
|
) |
597 |
greg |
1.1 |
{ |
598 |
|
|
register struct strvar *sv; |
599 |
|
|
register char *val; |
600 |
|
|
|
601 |
|
|
for (val = eqn; *val != '='; val++) |
602 |
|
|
if (!*val) |
603 |
|
|
return; |
604 |
|
|
*val++ = '\0'; |
605 |
|
|
sv = getsvar(eqn); |
606 |
|
|
if (sv->preset != NULL) |
607 |
|
|
freqstr(sv->preset); |
608 |
|
|
if (sv->val != NULL) |
609 |
|
|
freqstr(sv->val); |
610 |
|
|
sv->val = sv->preset = savqstr(val); |
611 |
|
|
*--val = '='; |
612 |
|
|
} |
613 |
|
|
|
614 |
|
|
|
615 |
schorsch |
1.5 |
static void |
616 |
|
|
clearrec(void) /* clear input record variables */ |
617 |
greg |
1.1 |
{ |
618 |
|
|
register struct field *f; |
619 |
|
|
|
620 |
|
|
for (f = inpfmt; f != NULL; f = f->next) |
621 |
|
|
switch (f->type & F_TYP) { |
622 |
|
|
case T_NUM: |
623 |
|
|
dremove(f->f.nv); |
624 |
|
|
break; |
625 |
|
|
case T_STR: |
626 |
|
|
if (f->f.sv->val != f->f.sv->preset) { |
627 |
|
|
freqstr(f->f.sv->val); |
628 |
|
|
f->f.sv->val = f->f.sv->preset; |
629 |
|
|
} |
630 |
|
|
break; |
631 |
|
|
} |
632 |
|
|
} |
633 |
|
|
|
634 |
|
|
|
635 |
schorsch |
1.5 |
static int |
636 |
greg |
1.13 |
getrec(void) /* get next record from file */ |
637 |
greg |
1.1 |
{ |
638 |
|
|
int eatline; |
639 |
|
|
register struct field *f; |
640 |
greg |
1.14 |
|
641 |
greg |
1.1 |
while (ipb.chr != EOF) { |
642 |
|
|
if (blnkeq) /* beware of nbsynch() */ |
643 |
|
|
while (isblnk(ipb.chr)) |
644 |
greg |
1.13 |
resetinp(); |
645 |
greg |
1.15 |
eatline = (!igneol && ipb.chr != '\n'); |
646 |
greg |
1.1 |
clearrec(); /* start with fresh record */ |
647 |
|
|
for (f = inpfmt; f != NULL; f = f->next) |
648 |
|
|
if (getfield(f) == -1) |
649 |
|
|
break; |
650 |
|
|
if (f == NULL) { |
651 |
greg |
1.13 |
advinp(); /* got one! */ |
652 |
greg |
1.1 |
return(1); |
653 |
|
|
} |
654 |
greg |
1.13 |
resetinp(); /* eat false start */ |
655 |
greg |
1.1 |
if (eatline) { /* eat rest of line */ |
656 |
|
|
while (ipb.chr != '\n') { |
657 |
|
|
if (ipb.chr == EOF) |
658 |
|
|
return(0); |
659 |
greg |
1.13 |
resetinp(); |
660 |
greg |
1.1 |
} |
661 |
greg |
1.13 |
resetinp(); |
662 |
greg |
1.1 |
} |
663 |
|
|
} |
664 |
|
|
return(0); |
665 |
|
|
} |
666 |
|
|
|
667 |
|
|
|
668 |
schorsch |
1.5 |
static int |
669 |
|
|
getfield( /* get next field */ |
670 |
|
|
register struct field *f |
671 |
|
|
) |
672 |
greg |
1.1 |
{ |
673 |
schorsch |
1.6 |
static char buf[RMAXWORD+1]; /* no recursion! */ |
674 |
greg |
1.1 |
int delim, inword; |
675 |
|
|
double d; |
676 |
|
|
char *np; |
677 |
|
|
register char *cp; |
678 |
|
|
|
679 |
|
|
switch (f->type & F_TYP) { |
680 |
|
|
case T_LIT: |
681 |
|
|
cp = f->f.sl; |
682 |
|
|
do { |
683 |
|
|
if (blnkeq && isblnk(*cp)) { |
684 |
|
|
if (!isblnk(ipb.chr)) |
685 |
|
|
return(-1); |
686 |
|
|
do |
687 |
|
|
cp++; |
688 |
|
|
while (isblnk(*cp)); |
689 |
|
|
do |
690 |
|
|
scaninp(); |
691 |
|
|
while (isblnk(ipb.chr)); |
692 |
|
|
} else if (*cp == ipb.chr) { |
693 |
|
|
cp++; |
694 |
|
|
scaninp(); |
695 |
|
|
} else |
696 |
|
|
return(-1); |
697 |
|
|
} while (*cp); |
698 |
|
|
return(0); |
699 |
|
|
case T_STR: |
700 |
|
|
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
701 |
|
|
delim = EOF; |
702 |
|
|
else |
703 |
|
|
delim = f->next->f.sl[0]; |
704 |
|
|
cp = buf; |
705 |
|
|
do { |
706 |
greg |
1.9 |
if (ipb.chr == EOF || ipb.chr == '\n') |
707 |
greg |
1.1 |
inword = 0; |
708 |
|
|
else if (blnkeq && delim != EOF) |
709 |
|
|
inword = isblnk(delim) ? |
710 |
|
|
!isblnk(ipb.chr) |
711 |
|
|
: ipb.chr != delim; |
712 |
|
|
else |
713 |
|
|
inword = cp-buf < (f->type & F_WID); |
714 |
|
|
if (inword) { |
715 |
|
|
*cp++ = ipb.chr; |
716 |
|
|
scaninp(); |
717 |
|
|
} |
718 |
schorsch |
1.6 |
} while (inword && cp < &buf[RMAXWORD]); |
719 |
greg |
1.1 |
*cp = '\0'; |
720 |
|
|
if (f->f.sv->val == NULL) |
721 |
|
|
f->f.sv->val = savqstr(buf); /* first setting */ |
722 |
|
|
else if (strcmp(f->f.sv->val, buf)) |
723 |
|
|
return(-1); /* doesn't match! */ |
724 |
|
|
return(0); |
725 |
|
|
case T_NUM: |
726 |
|
|
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
727 |
|
|
delim = EOF; |
728 |
|
|
else |
729 |
|
|
delim = f->next->f.sl[0]; |
730 |
|
|
np = NULL; |
731 |
|
|
cp = buf; |
732 |
|
|
do { |
733 |
|
|
if (!((np==NULL&&isblnk(ipb.chr)) || isnum(ipb.chr))) |
734 |
|
|
inword = 0; |
735 |
|
|
else if (blnkeq && delim != EOF) |
736 |
|
|
inword = isblnk(delim) ? |
737 |
|
|
!isblnk(ipb.chr) |
738 |
|
|
: ipb.chr != delim; |
739 |
|
|
else |
740 |
|
|
inword = cp-buf < (f->type & F_WID); |
741 |
|
|
if (inword) { |
742 |
|
|
if (np==NULL && !isblnk(ipb.chr)) |
743 |
|
|
np = cp; |
744 |
|
|
*cp++ = ipb.chr; |
745 |
|
|
scaninp(); |
746 |
|
|
} |
747 |
schorsch |
1.6 |
} while (inword && cp < &buf[RMAXWORD]); |
748 |
greg |
1.1 |
*cp = '\0'; |
749 |
|
|
d = np==NULL ? 0. : atof(np); |
750 |
|
|
if (!vardefined(f->f.nv)) |
751 |
|
|
varset(f->f.nv, '=', d); /* first setting */ |
752 |
|
|
else if ((d = (varvalue(f->f.nv)-d)/(d==0.?1.:d)) > .001 |
753 |
|
|
|| d < -.001) |
754 |
|
|
return(-1); /* doesn't match! */ |
755 |
|
|
return(0); |
756 |
|
|
} |
757 |
schorsch |
1.5 |
return -1; /* pro forma return */ |
758 |
greg |
1.1 |
} |
759 |
|
|
|
760 |
|
|
|
761 |
schorsch |
1.5 |
static void |
762 |
|
|
putrec(void) /* output a record */ |
763 |
greg |
1.1 |
{ |
764 |
|
|
char fmt[32]; |
765 |
|
|
register int n; |
766 |
|
|
register struct field *f; |
767 |
|
|
int adlast, adnext; |
768 |
|
|
|
769 |
|
|
adlast = 0; |
770 |
|
|
for (f = outfmt; f != NULL; f = f->next) { |
771 |
|
|
adnext = blnkeq && |
772 |
|
|
f->next != NULL && |
773 |
|
|
!( (f->next->type&F_TYP) == T_LIT && |
774 |
|
|
f->next->f.sl[0] == ' ' ); |
775 |
|
|
switch (f->type & F_TYP) { |
776 |
|
|
case T_LIT: |
777 |
|
|
fputs(f->f.sl, stdout); |
778 |
|
|
adlast = f->f.sl[(f->type&F_WID)-1] != ' '; |
779 |
|
|
break; |
780 |
|
|
case T_STR: |
781 |
|
|
if (f->f.sv->val == NULL) { |
782 |
|
|
eputs(f->f.sv->name); |
783 |
|
|
eputs(": undefined string\n"); |
784 |
|
|
quit(1); |
785 |
|
|
} |
786 |
|
|
n = (int)(f->type & F_WID) - strlen(f->f.sv->val); |
787 |
|
|
if (adlast) |
788 |
|
|
fputs(f->f.sv->val, stdout); |
789 |
|
|
if (!(adlast && adnext)) |
790 |
|
|
while (n-- > 0) |
791 |
|
|
putchar(' '); |
792 |
|
|
if (!adlast) |
793 |
|
|
fputs(f->f.sv->val, stdout); |
794 |
|
|
adlast = 1; |
795 |
|
|
break; |
796 |
|
|
case T_NUM: |
797 |
|
|
n = f->type & F_WID; |
798 |
|
|
if (adlast && adnext) |
799 |
|
|
strcpy(fmt, "%g"); |
800 |
|
|
else if (adlast) |
801 |
|
|
sprintf(fmt, "%%-%dg", n); |
802 |
|
|
else |
803 |
|
|
sprintf(fmt, "%%%dg", n); |
804 |
|
|
printf(fmt, evalue(f->f.ne)); |
805 |
|
|
adlast = 1; |
806 |
|
|
break; |
807 |
|
|
} |
808 |
|
|
} |
809 |
|
|
} |
810 |
|
|
|
811 |
|
|
|
812 |
schorsch |
1.5 |
static void |
813 |
|
|
initinp(FILE *fp) /* prepare lookahead buffer */ |
814 |
|
|
|
815 |
greg |
1.1 |
{ |
816 |
|
|
ipb.fin = fp; |
817 |
|
|
ipb.beg = ipb.end = inpbuf; |
818 |
|
|
ipb.pos = inpbuf-1; /* position before beginning */ |
819 |
|
|
ipb.chr = '\0'; |
820 |
|
|
scaninp(); |
821 |
|
|
} |
822 |
|
|
|
823 |
|
|
|
824 |
schorsch |
1.5 |
static void |
825 |
|
|
scaninp(void) /* scan next character */ |
826 |
greg |
1.1 |
{ |
827 |
|
|
if (ipb.chr == EOF) |
828 |
|
|
return; |
829 |
|
|
if (++ipb.pos >= &inpbuf[INBSIZ]) |
830 |
|
|
ipb.pos = inpbuf; |
831 |
|
|
if (ipb.pos == ipb.end) { /* new character */ |
832 |
|
|
if ((ipb.chr = getc(ipb.fin)) != EOF) { |
833 |
|
|
*ipb.end = ipb.chr; |
834 |
|
|
if (++ipb.end >= &inpbuf[INBSIZ]) |
835 |
|
|
ipb.end = inpbuf; |
836 |
|
|
if (ipb.end == ipb.beg) |
837 |
|
|
ipb.beg = NULL; |
838 |
|
|
} |
839 |
|
|
} else |
840 |
|
|
ipb.chr = *ipb.pos; |
841 |
|
|
} |
842 |
|
|
|
843 |
|
|
|
844 |
schorsch |
1.5 |
static void |
845 |
|
|
advinp(void) /* move home to current position */ |
846 |
greg |
1.1 |
{ |
847 |
|
|
ipb.beg = ipb.pos; |
848 |
|
|
} |
849 |
|
|
|
850 |
|
|
|
851 |
schorsch |
1.5 |
static void |
852 |
|
|
resetinp(void) /* rewind position and advance 1 */ |
853 |
greg |
1.1 |
{ |
854 |
|
|
if (ipb.beg == NULL) /* full */ |
855 |
|
|
ipb.beg = ipb.end; |
856 |
|
|
ipb.pos = ipb.beg; |
857 |
|
|
ipb.chr = *ipb.pos; |
858 |
greg |
1.13 |
if (passive) /* transmit unmatched character? */ |
859 |
|
|
fputc(ipb.chr, stdout); |
860 |
greg |
1.1 |
if (++ipb.beg >= &inpbuf[INBSIZ]) |
861 |
|
|
ipb.beg = inpbuf; |
862 |
|
|
scaninp(); |
863 |
|
|
} |
864 |
|
|
|
865 |
|
|
|
866 |
|
|
void |
867 |
schorsch |
1.5 |
eputs(char *msg) |
868 |
greg |
1.1 |
{ |
869 |
|
|
fputs(msg, stderr); |
870 |
|
|
} |
871 |
|
|
|
872 |
|
|
|
873 |
|
|
void |
874 |
schorsch |
1.5 |
wputs(char *msg) |
875 |
greg |
1.1 |
{ |
876 |
|
|
if (!nowarn) |
877 |
|
|
eputs(msg); |
878 |
|
|
} |
879 |
|
|
|
880 |
|
|
|
881 |
|
|
void |
882 |
schorsch |
1.5 |
quit(int code) |
883 |
greg |
1.1 |
{ |
884 |
|
|
exit(code); |
885 |
|
|
} |