1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.16 |
static const char RCSid[] = "$Id: loadvars.c,v 2.15 2015/05/22 14:44:11 greg 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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*/ |
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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 |
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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 |
2.15 |
loadvars( /* load variables into vv from file */ |
24 |
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char *rfname |
25 |
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) |
26 |
greg |
2.1 |
{ |
27 |
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FILE *fp; |
28 |
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char buf[512]; |
29 |
greg |
2.15 |
char *cp; |
30 |
greg |
2.1 |
|
31 |
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if (rfname == NULL) |
32 |
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fp = stdin; |
33 |
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else if ((fp = fopen(rfname, "r")) == NULL) { |
34 |
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perror(rfname); |
35 |
greg |
2.5 |
quit(1); |
36 |
greg |
2.1 |
} |
37 |
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while (fgetline(buf, sizeof(buf), fp) != NULL) { |
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for (cp = buf; *cp; cp++) { |
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switch (*cp) { |
40 |
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case '\\': |
41 |
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*cp++ = NOCHAR; |
42 |
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continue; |
43 |
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case '#': |
44 |
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*cp = '\0'; |
45 |
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break; |
46 |
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default: |
47 |
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continue; |
48 |
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} |
49 |
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break; |
50 |
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} |
51 |
greg |
2.6 |
if (setvariable(buf, matchvar) < 0) { |
52 |
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fprintf(stderr, "%s: unknown variable: %s\n", |
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rfname, buf); |
54 |
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quit(1); |
55 |
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} |
56 |
greg |
2.1 |
} |
57 |
greg |
2.16 |
if (fp != stdin) |
58 |
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fclose(fp); |
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greg |
2.1 |
} |
60 |
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61 |
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62 |
greg |
2.6 |
int |
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greg |
2.15 |
setvariable( /* assign variable according to string */ |
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char *ass, |
65 |
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VARIABLE *(*mv)(char*) |
66 |
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) |
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greg |
2.1 |
{ |
68 |
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char varname[32]; |
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int n; |
70 |
greg |
2.15 |
char *cp; |
71 |
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VARIABLE *vp; |
72 |
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int i; |
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greg |
2.1 |
|
74 |
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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++; |
80 |
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*cp = '\0'; |
81 |
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if (!varname[0]) |
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greg |
2.6 |
return(0); /* no variable name! */ |
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greg |
2.1 |
/* trim value */ |
84 |
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while (isspace(*ass) || *ass == '=') |
85 |
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ass++; |
86 |
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for (n = strlen(ass); n > 0; n--) |
87 |
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if (!isspace(ass[n-1])) |
88 |
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break; |
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greg |
2.6 |
if (!n) |
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return(0); /* no assignment */ |
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greg |
2.1 |
/* match variable from list */ |
92 |
greg |
2.6 |
vp = (*mv)(varname); |
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if (vp == NULL) |
94 |
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return(-1); |
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greg |
2.1 |
/* assign new value */ |
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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++) |
100 |
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; |
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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); |
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greg |
2.1 |
} else |
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greg |
2.9 |
vp->value = (char *)malloc(n+1); |
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greg |
2.1 |
if (vp->value == NULL) { |
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perror(progname); |
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greg |
2.5 |
quit(1); |
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greg |
2.1 |
} |
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cp = vp->value+i; /* copy value, squeezing spaces */ |
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*cp = *ass; |
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for (i = 1; i <= n; i++) { |
112 |
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if (ass[i] == NOCHAR) |
113 |
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continue; |
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if (isspace(*cp)) |
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while (isspace(ass[i])) |
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i++; |
117 |
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*++cp = ass[i]; |
118 |
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} |
119 |
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if (isspace(*cp)) /* remove trailing space */ |
120 |
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*cp = '\0'; |
121 |
greg |
2.6 |
return(++vp->nass); |
122 |
greg |
2.1 |
} |
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VARIABLE * |
126 |
greg |
2.15 |
matchvar( /* match a variable by its name */ |
127 |
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char *nam |
128 |
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) |
129 |
greg |
2.1 |
{ |
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int n = strlen(nam); |
131 |
greg |
2.15 |
int i; |
132 |
greg |
2.1 |
|
133 |
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for (i = 0; i < NVARS; i++) |
134 |
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if (n >= vv[i].nick && !strncmp(nam, vv[i].name, n)) |
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return(vv+i); |
136 |
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return(NULL); |
137 |
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} |
138 |
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139 |
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140 |
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char * |
141 |
greg |
2.15 |
nvalue( /* return nth variable value */ |
142 |
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int vn, |
143 |
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int n |
144 |
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) |
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greg |
2.1 |
{ |
146 |
greg |
2.15 |
char *cp; |
147 |
greg |
2.1 |
|
148 |
schorsch |
2.13 |
if ((vval(vn) == NULL) | (n < 0) | (n >= vdef(vn))) |
149 |
greg |
2.1 |
return(NULL); |
150 |
greg |
2.2 |
cp = vval(vn); |
151 |
greg |
2.1 |
while (n--) |
152 |
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while (*cp++) |
153 |
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; |
154 |
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return(cp); |
155 |
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} |
156 |
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157 |
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158 |
greg |
2.9 |
void |
159 |
greg |
2.15 |
checkvalues(void) /* check assignments */ |
160 |
greg |
2.1 |
{ |
161 |
greg |
2.15 |
int i; |
162 |
greg |
2.1 |
|
163 |
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for (i = 0; i < NVARS; i++) |
164 |
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if (vv[i].fixval != NULL) |
165 |
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(*vv[i].fixval)(vv+i); |
166 |
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} |
167 |
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168 |
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169 |
greg |
2.9 |
void |
170 |
greg |
2.15 |
onevalue( /* only one assignment for this variable */ |
171 |
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VARIABLE *vp |
172 |
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) |
173 |
greg |
2.1 |
{ |
174 |
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if (vp->nass < 2) |
175 |
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return; |
176 |
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if (!nowarn) |
177 |
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fprintf(stderr, |
178 |
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"%s: warning - multiple assignment of variable '%s'\n", |
179 |
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progname, vp->name); |
180 |
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do |
181 |
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vp->value += strlen(vp->value)+1; |
182 |
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while (--vp->nass > 1); |
183 |
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} |
184 |
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185 |
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186 |
greg |
2.9 |
void |
187 |
greg |
2.15 |
catvalues( /* concatenate variable values */ |
188 |
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VARIABLE *vp |
189 |
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) |
190 |
greg |
2.1 |
{ |
191 |
greg |
2.15 |
char *cp; |
192 |
greg |
2.1 |
|
193 |
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if (vp->nass < 2) |
194 |
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return; |
195 |
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for (cp = vp->value; vp->nass > 1; vp->nass--) { |
196 |
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while (*cp) |
197 |
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cp++; |
198 |
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*cp++ = ' '; |
199 |
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} |
200 |
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} |
201 |
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202 |
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203 |
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int |
204 |
greg |
2.15 |
badmatch( /* case insensitive truncated comparison */ |
205 |
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char *tv, |
206 |
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char *cv |
207 |
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) |
208 |
greg |
2.1 |
{ |
209 |
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if (!*tv) return(1); /* null string cannot match */ |
210 |
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do |
211 |
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if (UPPER(*tv) != *cv++) |
212 |
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return(1); |
213 |
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while (*++tv); |
214 |
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return(0); /* OK */ |
215 |
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} |
216 |
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217 |
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218 |
greg |
2.9 |
void |
219 |
greg |
2.15 |
boolvalue( /* check boolean for legal values */ |
220 |
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VARIABLE *vp |
221 |
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) |
222 |
greg |
2.1 |
{ |
223 |
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if (!vp->nass) return; |
224 |
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onevalue(vp); |
225 |
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switch (UPPER(vp->value[0])) { |
226 |
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case 'T': |
227 |
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if (badmatch(vp->value, "TRUE")) break; |
228 |
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return; |
229 |
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case 'F': |
230 |
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if (badmatch(vp->value, "FALSE")) break; |
231 |
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return; |
232 |
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} |
233 |
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fprintf(stderr, "%s: illegal value for boolean variable '%s'\n", |
234 |
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progname, vp->name); |
235 |
greg |
2.5 |
quit(1); |
236 |
greg |
2.1 |
} |
237 |
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238 |
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|
239 |
greg |
2.9 |
void |
240 |
greg |
2.15 |
qualvalue( /* check qualitative var. for legal values */ |
241 |
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VARIABLE *vp |
242 |
|
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) |
243 |
greg |
2.1 |
{ |
244 |
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if (!vp->nass) return; |
245 |
|
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onevalue(vp); |
246 |
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switch (UPPER(vp->value[0])) { |
247 |
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case 'L': |
248 |
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if (badmatch(vp->value, "LOW")) break; |
249 |
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return; |
250 |
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case 'M': |
251 |
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if (badmatch(vp->value, "MEDIUM")) break; |
252 |
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return; |
253 |
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case 'H': |
254 |
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if (badmatch(vp->value, "HIGH")) break; |
255 |
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return; |
256 |
|
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} |
257 |
|
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fprintf(stderr, "%s: illegal value for qualitative variable '%s'\n", |
258 |
|
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progname, vp->name); |
259 |
greg |
2.5 |
quit(1); |
260 |
greg |
2.1 |
} |
261 |
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|
262 |
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|
263 |
greg |
2.9 |
void |
264 |
greg |
2.15 |
intvalue( /* check integer variable for legal values */ |
265 |
|
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VARIABLE *vp |
266 |
|
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) |
267 |
greg |
2.1 |
{ |
268 |
|
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if (!vp->nass) return; |
269 |
|
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onevalue(vp); |
270 |
|
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if (isint(vp->value)) return; |
271 |
|
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fprintf(stderr, "%s: illegal value for integer variable '%s'\n", |
272 |
|
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progname, vp->name); |
273 |
greg |
2.5 |
quit(1); |
274 |
greg |
2.1 |
} |
275 |
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|
276 |
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|
277 |
greg |
2.9 |
void |
278 |
greg |
2.15 |
fltvalue( /* check float variable for legal values */ |
279 |
|
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VARIABLE *vp |
280 |
|
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) |
281 |
greg |
2.1 |
{ |
282 |
|
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if (!vp->nass) return; |
283 |
|
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onevalue(vp); |
284 |
|
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if (isflt(vp->value)) return; |
285 |
|
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fprintf(stderr, "%s: illegal value for real variable '%s'\n", |
286 |
|
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progname, vp->name); |
287 |
greg |
2.5 |
quit(1); |
288 |
greg |
2.1 |
} |
289 |
|
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|
290 |
|
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|
291 |
greg |
2.9 |
void |
292 |
greg |
2.15 |
printvars( /* print variable values */ |
293 |
|
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FILE *fp |
294 |
|
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) |
295 |
greg |
2.1 |
{ |
296 |
|
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int i, j, k, clipline; |
297 |
greg |
2.15 |
char *cp; |
298 |
greg |
2.1 |
|
299 |
|
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for (i = 0; i < NVARS; i++) /* print each variable */ |
300 |
|
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for (j = 0; j < vdef(i); j++) { /* print each assignment */ |
301 |
|
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fputs(vnam(i), fp); |
302 |
|
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fputs("= ", fp); |
303 |
gwlarson |
2.8 |
k = clipline = ( vv[i].fixval == catvalues ? 64 : 236 ) |
304 |
greg |
2.1 |
- strlen(vnam(i)) ; |
305 |
greg |
2.2 |
cp = nvalue(i, j); |
306 |
greg |
2.1 |
while (*cp) { |
307 |
|
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putc(*cp++, fp); |
308 |
|
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if (--k <= 0) { /* line too long */ |
309 |
|
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while (*cp && !isspace(*cp)) |
310 |
gwlarson |
2.7 |
fputc(*cp++, fp); /* finish this word */ |
311 |
greg |
2.1 |
if (*cp) { /* start new line */ |
312 |
gwlarson |
2.7 |
if (vv[i].fixval == catvalues) { |
313 |
|
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fputc('\n', fp); |
314 |
|
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fputs(vnam(i), fp); |
315 |
|
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fputc('=', fp); |
316 |
|
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} else |
317 |
|
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fputs(" \\\n", fp); |
318 |
greg |
2.1 |
k = clipline; |
319 |
|
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} |
320 |
|
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} |
321 |
|
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} |
322 |
gwlarson |
2.7 |
fputc('\n', fp); |
323 |
greg |
2.1 |
} |
324 |
|
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fflush(fp); |
325 |
|
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} |