Commit | Line | Data |
---|---|---|
299f2784 MH |
1 | /* Copyright (c) 1981 Regents of the University of California */ |
2 | static char *sccsid = "@(#)ex_set.c 7.1 %G%"; | |
f3338623 MH |
3 | #include "ex.h" |
4 | #include "ex_temp.h" | |
1f4630fd | 5 | #include "ex_tty.h" |
f3338623 MH |
6 | |
7 | /* | |
8 | * Set command. | |
9 | */ | |
10 | char optname[ONMSZ]; | |
11 | ||
12 | set() | |
13 | { | |
14 | register char *cp; | |
15 | register struct option *op; | |
16 | register int c; | |
17 | bool no; | |
887e3e0d | 18 | extern short ospeed; |
f3338623 MH |
19 | |
20 | setnoaddr(); | |
21 | if (skipend()) { | |
22 | if (peekchar() != EOF) | |
23 | ignchar(); | |
24 | propts(); | |
25 | return; | |
26 | } | |
27 | do { | |
28 | cp = optname; | |
29 | do { | |
30 | if (cp < &optname[ONMSZ - 2]) | |
31 | *cp++ = getchar(); | |
887e3e0d | 32 | } while (isalnum(peekchar())); |
f3338623 MH |
33 | *cp = 0; |
34 | cp = optname; | |
35 | if (eq("all", cp)) { | |
36 | if (inopen) | |
37 | pofix(); | |
38 | prall(); | |
39 | goto next; | |
40 | } | |
41 | no = 0; | |
42 | if (cp[0] == 'n' && cp[1] == 'o') { | |
43 | cp += 2; | |
44 | no++; | |
45 | } | |
887e3e0d MH |
46 | /* Implement w300, w1200, and w9600 specially */ |
47 | if (eq(cp, "w300")) { | |
48 | if (ospeed >= B1200) { | |
49 | dontset: | |
50 | ignore(getchar()); /* = */ | |
51 | ignore(getnum()); /* value */ | |
52 | continue; | |
53 | } | |
54 | cp = "window"; | |
55 | } else if (eq(cp, "w1200")) { | |
56 | if (ospeed < B1200 || ospeed >= B2400) | |
57 | goto dontset; | |
58 | cp = "window"; | |
59 | } else if (eq(cp, "w9600")) { | |
60 | if (ospeed < B2400) | |
61 | goto dontset; | |
62 | cp = "window"; | |
63 | } | |
f3338623 MH |
64 | for (op = options; op < &options[NOPTS]; op++) |
65 | if (eq(op->oname, cp) || op->oabbrev && eq(op->oabbrev, cp)) | |
66 | break; | |
67 | if (op->oname == 0) | |
68 | serror("%s: No such option@- 'set all' gives all option values", cp); | |
69 | c = skipwh(); | |
70 | if (peekchar() == '?') { | |
71 | ignchar(); | |
72 | printone: | |
73 | propt(op); | |
74 | noonl(); | |
75 | goto next; | |
76 | } | |
77 | if (op->otype == ONOFF) { | |
78 | op->ovalue = 1 - no; | |
d266c416 MH |
79 | if (op == &options[PROMPT]) |
80 | oprompt = 1 - no; | |
f3338623 MH |
81 | goto next; |
82 | } | |
83 | if (no) | |
84 | serror("Option %s is not a toggle", op->oname); | |
85 | if (c != 0 || setend()) | |
86 | goto printone; | |
87 | if (getchar() != '=') | |
88 | serror("Missing =@in assignment to option %s", op->oname); | |
89 | switch (op->otype) { | |
90 | ||
91 | case NUMERIC: | |
92 | if (!isdigit(peekchar())) | |
887e3e0d | 93 | error("Digits required@after ="); |
f3338623 MH |
94 | op->ovalue = getnum(); |
95 | if (value(TABSTOP) <= 0) | |
96 | value(TABSTOP) = TABS; | |
ff59773d MH |
97 | if (op == &options[WINDOW]) { |
98 | if (value(WINDOW) >= LINES) | |
99 | value(WINDOW) = LINES-1; | |
887e3e0d | 100 | vsetsiz(value(WINDOW)); |
ff59773d | 101 | } |
f3338623 MH |
102 | break; |
103 | ||
104 | case STRING: | |
105 | case OTERM: | |
106 | cp = optname; | |
107 | while (!setend()) { | |
108 | if (cp >= &optname[ONMSZ]) | |
109 | error("String too long@in option assignment"); | |
110 | /* adb change: allow whitepace in strings */ | |
111 | if( (*cp = getchar()) == '\\') | |
112 | if( peekchar() != EOF) | |
113 | *cp = getchar(); | |
114 | cp++; | |
115 | } | |
116 | *cp = 0; | |
117 | if (op->otype == OTERM) { | |
118 | /* | |
119 | * At first glance it seems like we shouldn't care if the terminal type | |
120 | * is changed inside visual mode, as long as we assume the screen is | |
121 | * a mess and redraw it. However, it's a much harder problem than that. | |
122 | * If you happen to change from 1 crt to another that both have the same | |
123 | * size screen, it's OK. But if the screen size if different, the stuff | |
124 | * that gets initialized in vop() will be wrong. This could be overcome | |
125 | * by redoing the initialization, e.g. making the first 90% of vop into | |
126 | * a subroutine. However, the most useful case is where you forgot to do | |
127 | * a setenv before you went into the editor and it thinks you're on a dumb | |
128 | * terminal. Ex treats this like hardcopy and goes into HARDOPEN mode. | |
129 | * This loses because the first part of vop calls oop in this case. | |
130 | * The problem is so hard I gave up. I'm not saying it can't be done, | |
131 | * but I am saying it probably isn't worth the effort. | |
132 | */ | |
133 | if (inopen) | |
134 | error("Can't change type of terminal from within open/visual"); | |
135 | setterm(optname); | |
136 | } else { | |
137 | CP(op->osvalue, optname); | |
138 | op->odefault = 1; | |
139 | } | |
140 | break; | |
141 | } | |
142 | next: | |
143 | flush(); | |
144 | } while (!skipend()); | |
145 | eol(); | |
146 | } | |
147 | ||
148 | setend() | |
149 | { | |
150 | ||
151 | return (iswhite(peekchar()) || endcmd(peekchar())); | |
152 | } | |
153 | ||
154 | prall() | |
155 | { | |
156 | register int incr = (NOPTS + 2) / 3; | |
157 | register int rows = incr; | |
158 | register struct option *op = options; | |
159 | ||
160 | for (; rows; rows--, op++) { | |
161 | propt(op); | |
162 | tab(24); | |
163 | propt(&op[incr]); | |
164 | if (&op[2*incr] < &options[NOPTS]) { | |
165 | tab(56); | |
166 | propt(&op[2 * incr]); | |
167 | } | |
168 | putNFL(); | |
169 | } | |
170 | } | |
171 | ||
172 | propts() | |
173 | { | |
174 | register struct option *op; | |
175 | ||
176 | for (op = options; op < &options[NOPTS]; op++) { | |
177 | #ifdef V6 | |
178 | if (op == &options[TERM]) | |
179 | #else | |
180 | if (op == &options[TTYTYPE]) | |
181 | #endif | |
182 | continue; | |
183 | switch (op->otype) { | |
184 | ||
185 | case ONOFF: | |
186 | case NUMERIC: | |
187 | if (op->ovalue == op->odefault) | |
188 | continue; | |
189 | break; | |
190 | ||
191 | case STRING: | |
192 | if (op->odefault == 0) | |
193 | continue; | |
194 | break; | |
195 | } | |
196 | propt(op); | |
197 | putchar(' '); | |
198 | } | |
199 | noonl(); | |
200 | flush(); | |
201 | } | |
202 | ||
203 | propt(op) | |
204 | register struct option *op; | |
205 | { | |
206 | register char *name; | |
207 | ||
208 | name = op->oname; | |
209 | ||
210 | switch (op->otype) { | |
211 | ||
212 | case ONOFF: | |
213 | printf("%s%s", op->ovalue ? "" : "no", name); | |
214 | break; | |
215 | ||
216 | case NUMERIC: | |
217 | printf("%s=%d", name, op->ovalue); | |
218 | break; | |
219 | ||
220 | case STRING: | |
221 | case OTERM: | |
222 | printf("%s=%s", name, op->osvalue); | |
223 | break; | |
224 | } | |
225 | } |