Commit | Line | Data |
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f3338623 MH |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | #include "ex.h" | |
3 | #include "ex_temp.h" | |
4 | ||
5 | /* | |
6 | * Set command. | |
7 | */ | |
8 | char optname[ONMSZ]; | |
9 | ||
10 | set() | |
11 | { | |
12 | register char *cp; | |
13 | register struct option *op; | |
14 | register int c; | |
15 | bool no; | |
887e3e0d | 16 | extern short ospeed; |
f3338623 MH |
17 | |
18 | setnoaddr(); | |
19 | if (skipend()) { | |
20 | if (peekchar() != EOF) | |
21 | ignchar(); | |
22 | propts(); | |
23 | return; | |
24 | } | |
25 | do { | |
26 | cp = optname; | |
27 | do { | |
28 | if (cp < &optname[ONMSZ - 2]) | |
29 | *cp++ = getchar(); | |
887e3e0d | 30 | } while (isalnum(peekchar())); |
f3338623 MH |
31 | *cp = 0; |
32 | cp = optname; | |
33 | if (eq("all", cp)) { | |
34 | if (inopen) | |
35 | pofix(); | |
36 | prall(); | |
37 | goto next; | |
38 | } | |
39 | no = 0; | |
40 | if (cp[0] == 'n' && cp[1] == 'o') { | |
41 | cp += 2; | |
42 | no++; | |
43 | } | |
887e3e0d MH |
44 | /* Implement w300, w1200, and w9600 specially */ |
45 | if (eq(cp, "w300")) { | |
46 | if (ospeed >= B1200) { | |
47 | dontset: | |
48 | ignore(getchar()); /* = */ | |
49 | ignore(getnum()); /* value */ | |
50 | continue; | |
51 | } | |
52 | cp = "window"; | |
53 | } else if (eq(cp, "w1200")) { | |
54 | if (ospeed < B1200 || ospeed >= B2400) | |
55 | goto dontset; | |
56 | cp = "window"; | |
57 | } else if (eq(cp, "w9600")) { | |
58 | if (ospeed < B2400) | |
59 | goto dontset; | |
60 | cp = "window"; | |
61 | } | |
f3338623 MH |
62 | for (op = options; op < &options[NOPTS]; op++) |
63 | if (eq(op->oname, cp) || op->oabbrev && eq(op->oabbrev, cp)) | |
64 | break; | |
65 | if (op->oname == 0) | |
66 | serror("%s: No such option@- 'set all' gives all option values", cp); | |
67 | c = skipwh(); | |
68 | if (peekchar() == '?') { | |
69 | ignchar(); | |
70 | printone: | |
71 | propt(op); | |
72 | noonl(); | |
73 | goto next; | |
74 | } | |
75 | if (op->otype == ONOFF) { | |
76 | op->ovalue = 1 - no; | |
d266c416 MH |
77 | if (op == &options[PROMPT]) |
78 | oprompt = 1 - no; | |
f3338623 MH |
79 | goto next; |
80 | } | |
81 | if (no) | |
82 | serror("Option %s is not a toggle", op->oname); | |
83 | if (c != 0 || setend()) | |
84 | goto printone; | |
85 | if (getchar() != '=') | |
86 | serror("Missing =@in assignment to option %s", op->oname); | |
87 | switch (op->otype) { | |
88 | ||
89 | case NUMERIC: | |
90 | if (!isdigit(peekchar())) | |
887e3e0d | 91 | error("Digits required@after ="); |
f3338623 MH |
92 | op->ovalue = getnum(); |
93 | if (value(TABSTOP) <= 0) | |
94 | value(TABSTOP) = TABS; | |
887e3e0d MH |
95 | if (op == &options[WINDOW]) |
96 | vsetsiz(value(WINDOW)); | |
f3338623 MH |
97 | break; |
98 | ||
99 | case STRING: | |
100 | case OTERM: | |
101 | cp = optname; | |
102 | while (!setend()) { | |
103 | if (cp >= &optname[ONMSZ]) | |
104 | error("String too long@in option assignment"); | |
105 | /* adb change: allow whitepace in strings */ | |
106 | if( (*cp = getchar()) == '\\') | |
107 | if( peekchar() != EOF) | |
108 | *cp = getchar(); | |
109 | cp++; | |
110 | } | |
111 | *cp = 0; | |
112 | if (op->otype == OTERM) { | |
113 | /* | |
114 | * At first glance it seems like we shouldn't care if the terminal type | |
115 | * is changed inside visual mode, as long as we assume the screen is | |
116 | * a mess and redraw it. However, it's a much harder problem than that. | |
117 | * If you happen to change from 1 crt to another that both have the same | |
118 | * size screen, it's OK. But if the screen size if different, the stuff | |
119 | * that gets initialized in vop() will be wrong. This could be overcome | |
120 | * by redoing the initialization, e.g. making the first 90% of vop into | |
121 | * a subroutine. However, the most useful case is where you forgot to do | |
122 | * a setenv before you went into the editor and it thinks you're on a dumb | |
123 | * terminal. Ex treats this like hardcopy and goes into HARDOPEN mode. | |
124 | * This loses because the first part of vop calls oop in this case. | |
125 | * The problem is so hard I gave up. I'm not saying it can't be done, | |
126 | * but I am saying it probably isn't worth the effort. | |
127 | */ | |
128 | if (inopen) | |
129 | error("Can't change type of terminal from within open/visual"); | |
130 | setterm(optname); | |
131 | } else { | |
132 | CP(op->osvalue, optname); | |
133 | op->odefault = 1; | |
134 | } | |
135 | break; | |
136 | } | |
137 | next: | |
138 | flush(); | |
139 | } while (!skipend()); | |
140 | eol(); | |
141 | } | |
142 | ||
143 | setend() | |
144 | { | |
145 | ||
146 | return (iswhite(peekchar()) || endcmd(peekchar())); | |
147 | } | |
148 | ||
149 | prall() | |
150 | { | |
151 | register int incr = (NOPTS + 2) / 3; | |
152 | register int rows = incr; | |
153 | register struct option *op = options; | |
154 | ||
155 | for (; rows; rows--, op++) { | |
156 | propt(op); | |
157 | tab(24); | |
158 | propt(&op[incr]); | |
159 | if (&op[2*incr] < &options[NOPTS]) { | |
160 | tab(56); | |
161 | propt(&op[2 * incr]); | |
162 | } | |
163 | putNFL(); | |
164 | } | |
165 | } | |
166 | ||
167 | propts() | |
168 | { | |
169 | register struct option *op; | |
170 | ||
171 | for (op = options; op < &options[NOPTS]; op++) { | |
172 | #ifdef V6 | |
173 | if (op == &options[TERM]) | |
174 | #else | |
175 | if (op == &options[TTYTYPE]) | |
176 | #endif | |
177 | continue; | |
178 | switch (op->otype) { | |
179 | ||
180 | case ONOFF: | |
181 | case NUMERIC: | |
182 | if (op->ovalue == op->odefault) | |
183 | continue; | |
184 | break; | |
185 | ||
186 | case STRING: | |
187 | if (op->odefault == 0) | |
188 | continue; | |
189 | break; | |
190 | } | |
191 | propt(op); | |
192 | putchar(' '); | |
193 | } | |
194 | noonl(); | |
195 | flush(); | |
196 | } | |
197 | ||
198 | propt(op) | |
199 | register struct option *op; | |
200 | { | |
201 | register char *name; | |
202 | ||
203 | name = op->oname; | |
204 | ||
205 | switch (op->otype) { | |
206 | ||
207 | case ONOFF: | |
208 | printf("%s%s", op->ovalue ? "" : "no", name); | |
209 | break; | |
210 | ||
211 | case NUMERIC: | |
212 | printf("%s=%d", name, op->ovalue); | |
213 | break; | |
214 | ||
215 | case STRING: | |
216 | case OTERM: | |
217 | printf("%s=%s", name, op->osvalue); | |
218 | break; | |
219 | } | |
220 | } |