1 |
greg |
2.1 |
#ifndef lint |
2 |
schorsch |
2.14 |
static const char RCSid[] = "$Id: loadvars.c,v 2.13 2003/07/27 22:12:01 schorsch Exp $"; |
3 |
greg |
2.1 |
#endif |
4 |
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/* |
5 |
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* Routines for loading and checking variables from file. |
6 |
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*/ |
7 |
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8 |
greg |
2.10 |
#include "copyright.h" |
9 |
greg |
2.9 |
|
10 |
greg |
2.1 |
#include <stdio.h> |
11 |
greg |
2.9 |
#include <stdlib.h> |
12 |
greg |
2.1 |
#include <ctype.h> |
13 |
schorsch |
2.12 |
|
14 |
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#include "standard.h" |
15 |
greg |
2.1 |
#include "vars.h" |
16 |
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17 |
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#define NOCHAR 127 /* constant for character to delete */ |
18 |
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19 |
greg |
2.4 |
extern char *fgetline(); |
20 |
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21 |
greg |
2.1 |
|
22 |
greg |
2.9 |
void |
23 |
greg |
2.1 |
loadvars(rfname) /* load variables into vv from file */ |
24 |
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char *rfname; |
25 |
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{ |
26 |
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FILE *fp; |
27 |
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char buf[512]; |
28 |
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register char *cp; |
29 |
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30 |
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if (rfname == NULL) |
31 |
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fp = stdin; |
32 |
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else if ((fp = fopen(rfname, "r")) == NULL) { |
33 |
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perror(rfname); |
34 |
greg |
2.5 |
quit(1); |
35 |
greg |
2.1 |
} |
36 |
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while (fgetline(buf, sizeof(buf), fp) != NULL) { |
37 |
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for (cp = buf; *cp; cp++) { |
38 |
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switch (*cp) { |
39 |
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case '\\': |
40 |
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*cp++ = NOCHAR; |
41 |
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continue; |
42 |
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case '#': |
43 |
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*cp = '\0'; |
44 |
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break; |
45 |
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default: |
46 |
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continue; |
47 |
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} |
48 |
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break; |
49 |
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} |
50 |
greg |
2.6 |
if (setvariable(buf, matchvar) < 0) { |
51 |
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fprintf(stderr, "%s: unknown variable: %s\n", |
52 |
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rfname, buf); |
53 |
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quit(1); |
54 |
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} |
55 |
greg |
2.1 |
} |
56 |
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fclose(fp); |
57 |
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} |
58 |
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59 |
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60 |
greg |
2.6 |
int |
61 |
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setvariable(ass, mv) /* assign variable according to string */ |
62 |
greg |
2.1 |
register char *ass; |
63 |
schorsch |
2.14 |
VARIABLE *(*mv)(char*); |
64 |
greg |
2.1 |
{ |
65 |
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char varname[32]; |
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int n; |
67 |
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register char *cp; |
68 |
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register VARIABLE *vp; |
69 |
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register int i; |
70 |
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71 |
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while (isspace(*ass)) /* skip leading space */ |
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ass++; |
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cp = varname; /* extract name */ |
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while (cp < varname+sizeof(varname)-1 |
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&& *ass && !isspace(*ass) && *ass != '=') |
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*cp++ = *ass++; |
77 |
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*cp = '\0'; |
78 |
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if (!varname[0]) |
79 |
greg |
2.6 |
return(0); /* no variable name! */ |
80 |
greg |
2.1 |
/* trim value */ |
81 |
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while (isspace(*ass) || *ass == '=') |
82 |
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ass++; |
83 |
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for (n = strlen(ass); n > 0; n--) |
84 |
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if (!isspace(ass[n-1])) |
85 |
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break; |
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greg |
2.6 |
if (!n) |
87 |
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return(0); /* no assignment */ |
88 |
greg |
2.1 |
/* match variable from list */ |
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greg |
2.6 |
vp = (*mv)(varname); |
90 |
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if (vp == NULL) |
91 |
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return(-1); |
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greg |
2.1 |
/* assign new value */ |
93 |
schorsch |
2.13 |
if ( (i = vp->nass) ) { |
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greg |
2.1 |
cp = vp->value; |
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while (i--) |
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while (*cp++) |
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; |
98 |
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i = cp - vp->value; |
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greg |
2.11 |
vp->value = (char *)realloc((void *)vp->value, i+n+1); |
100 |
greg |
2.1 |
} else |
101 |
greg |
2.9 |
vp->value = (char *)malloc(n+1); |
102 |
greg |
2.1 |
if (vp->value == NULL) { |
103 |
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perror(progname); |
104 |
greg |
2.5 |
quit(1); |
105 |
greg |
2.1 |
} |
106 |
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cp = vp->value+i; /* copy value, squeezing spaces */ |
107 |
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*cp = *ass; |
108 |
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for (i = 1; i <= n; i++) { |
109 |
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if (ass[i] == NOCHAR) |
110 |
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continue; |
111 |
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if (isspace(*cp)) |
112 |
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while (isspace(ass[i])) |
113 |
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i++; |
114 |
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*++cp = ass[i]; |
115 |
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} |
116 |
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if (isspace(*cp)) /* remove trailing space */ |
117 |
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*cp = '\0'; |
118 |
greg |
2.6 |
return(++vp->nass); |
119 |
greg |
2.1 |
} |
120 |
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121 |
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122 |
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VARIABLE * |
123 |
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matchvar(nam) /* match a variable by its name */ |
124 |
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char *nam; |
125 |
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{ |
126 |
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int n = strlen(nam); |
127 |
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register int i; |
128 |
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129 |
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for (i = 0; i < NVARS; i++) |
130 |
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if (n >= vv[i].nick && !strncmp(nam, vv[i].name, n)) |
131 |
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return(vv+i); |
132 |
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return(NULL); |
133 |
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} |
134 |
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135 |
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136 |
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char * |
137 |
greg |
2.2 |
nvalue(vn, n) /* return nth variable value */ |
138 |
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register int vn; |
139 |
greg |
2.1 |
register int n; |
140 |
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{ |
141 |
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register char *cp; |
142 |
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143 |
schorsch |
2.13 |
if ((vval(vn) == NULL) | (n < 0) | (n >= vdef(vn))) |
144 |
greg |
2.1 |
return(NULL); |
145 |
greg |
2.2 |
cp = vval(vn); |
146 |
greg |
2.1 |
while (n--) |
147 |
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while (*cp++) |
148 |
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; |
149 |
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return(cp); |
150 |
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} |
151 |
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152 |
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153 |
greg |
2.9 |
void |
154 |
greg |
2.1 |
checkvalues() /* check assignments */ |
155 |
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{ |
156 |
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register int i; |
157 |
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158 |
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for (i = 0; i < NVARS; i++) |
159 |
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if (vv[i].fixval != NULL) |
160 |
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(*vv[i].fixval)(vv+i); |
161 |
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} |
162 |
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163 |
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164 |
greg |
2.9 |
void |
165 |
greg |
2.1 |
onevalue(vp) /* only one assignment for this variable */ |
166 |
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register VARIABLE *vp; |
167 |
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{ |
168 |
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if (vp->nass < 2) |
169 |
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return; |
170 |
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if (!nowarn) |
171 |
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fprintf(stderr, |
172 |
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"%s: warning - multiple assignment of variable '%s'\n", |
173 |
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progname, vp->name); |
174 |
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do |
175 |
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vp->value += strlen(vp->value)+1; |
176 |
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while (--vp->nass > 1); |
177 |
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} |
178 |
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179 |
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180 |
greg |
2.9 |
void |
181 |
greg |
2.1 |
catvalues(vp) /* concatenate variable values */ |
182 |
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register VARIABLE *vp; |
183 |
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{ |
184 |
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register char *cp; |
185 |
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186 |
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if (vp->nass < 2) |
187 |
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return; |
188 |
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for (cp = vp->value; vp->nass > 1; vp->nass--) { |
189 |
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while (*cp) |
190 |
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cp++; |
191 |
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*cp++ = ' '; |
192 |
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} |
193 |
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} |
194 |
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195 |
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196 |
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int |
197 |
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badmatch(tv, cv) /* case insensitive truncated comparison */ |
198 |
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register char *tv, *cv; |
199 |
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{ |
200 |
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if (!*tv) return(1); /* null string cannot match */ |
201 |
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do |
202 |
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if (UPPER(*tv) != *cv++) |
203 |
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return(1); |
204 |
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while (*++tv); |
205 |
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return(0); /* OK */ |
206 |
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} |
207 |
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208 |
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209 |
greg |
2.9 |
void |
210 |
greg |
2.1 |
boolvalue(vp) /* check boolean for legal values */ |
211 |
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register VARIABLE *vp; |
212 |
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{ |
213 |
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if (!vp->nass) return; |
214 |
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onevalue(vp); |
215 |
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switch (UPPER(vp->value[0])) { |
216 |
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case 'T': |
217 |
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if (badmatch(vp->value, "TRUE")) break; |
218 |
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return; |
219 |
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case 'F': |
220 |
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if (badmatch(vp->value, "FALSE")) break; |
221 |
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return; |
222 |
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} |
223 |
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fprintf(stderr, "%s: illegal value for boolean variable '%s'\n", |
224 |
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progname, vp->name); |
225 |
greg |
2.5 |
quit(1); |
226 |
greg |
2.1 |
} |
227 |
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228 |
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229 |
greg |
2.9 |
void |
230 |
greg |
2.1 |
qualvalue(vp) /* check qualitative var. for legal values */ |
231 |
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register VARIABLE *vp; |
232 |
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{ |
233 |
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if (!vp->nass) return; |
234 |
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onevalue(vp); |
235 |
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switch (UPPER(vp->value[0])) { |
236 |
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case 'L': |
237 |
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if (badmatch(vp->value, "LOW")) break; |
238 |
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return; |
239 |
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case 'M': |
240 |
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if (badmatch(vp->value, "MEDIUM")) break; |
241 |
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return; |
242 |
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case 'H': |
243 |
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if (badmatch(vp->value, "HIGH")) break; |
244 |
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return; |
245 |
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} |
246 |
|
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fprintf(stderr, "%s: illegal value for qualitative variable '%s'\n", |
247 |
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progname, vp->name); |
248 |
greg |
2.5 |
quit(1); |
249 |
greg |
2.1 |
} |
250 |
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251 |
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|
252 |
greg |
2.9 |
void |
253 |
greg |
2.1 |
intvalue(vp) /* check integer variable for legal values */ |
254 |
|
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register VARIABLE *vp; |
255 |
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{ |
256 |
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if (!vp->nass) return; |
257 |
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onevalue(vp); |
258 |
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if (isint(vp->value)) return; |
259 |
|
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fprintf(stderr, "%s: illegal value for integer variable '%s'\n", |
260 |
|
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progname, vp->name); |
261 |
greg |
2.5 |
quit(1); |
262 |
greg |
2.1 |
} |
263 |
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|
264 |
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|
265 |
greg |
2.9 |
void |
266 |
greg |
2.1 |
fltvalue(vp) /* check float variable for legal values */ |
267 |
|
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register VARIABLE *vp; |
268 |
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{ |
269 |
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if (!vp->nass) return; |
270 |
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onevalue(vp); |
271 |
|
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if (isflt(vp->value)) return; |
272 |
|
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fprintf(stderr, "%s: illegal value for real variable '%s'\n", |
273 |
|
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progname, vp->name); |
274 |
greg |
2.5 |
quit(1); |
275 |
greg |
2.1 |
} |
276 |
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277 |
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|
278 |
greg |
2.9 |
void |
279 |
greg |
2.1 |
printvars(fp) /* print variable values */ |
280 |
|
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register FILE *fp; |
281 |
|
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{ |
282 |
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int i, j, k, clipline; |
283 |
|
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register char *cp; |
284 |
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|
285 |
|
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for (i = 0; i < NVARS; i++) /* print each variable */ |
286 |
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for (j = 0; j < vdef(i); j++) { /* print each assignment */ |
287 |
|
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fputs(vnam(i), fp); |
288 |
|
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fputs("= ", fp); |
289 |
gwlarson |
2.8 |
k = clipline = ( vv[i].fixval == catvalues ? 64 : 236 ) |
290 |
greg |
2.1 |
- strlen(vnam(i)) ; |
291 |
greg |
2.2 |
cp = nvalue(i, j); |
292 |
greg |
2.1 |
while (*cp) { |
293 |
|
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putc(*cp++, fp); |
294 |
|
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if (--k <= 0) { /* line too long */ |
295 |
|
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while (*cp && !isspace(*cp)) |
296 |
gwlarson |
2.7 |
fputc(*cp++, fp); /* finish this word */ |
297 |
greg |
2.1 |
if (*cp) { /* start new line */ |
298 |
gwlarson |
2.7 |
if (vv[i].fixval == catvalues) { |
299 |
|
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fputc('\n', fp); |
300 |
|
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fputs(vnam(i), fp); |
301 |
|
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fputc('=', fp); |
302 |
|
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} else |
303 |
|
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fputs(" \\\n", fp); |
304 |
greg |
2.1 |
k = clipline; |
305 |
|
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} |
306 |
|
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} |
307 |
|
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} |
308 |
gwlarson |
2.7 |
fputc('\n', fp); |
309 |
greg |
2.1 |
} |
310 |
|
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fflush(fp); |
311 |
|
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} |