Commit | Line | Data |
---|---|---|
6c66202d BJ |
1 | static char *sccsid = "@(#)cb.c 4.1 (Berkeley) %G%"; |
2 | #include <stdio.h> | |
3 | int slevel[10]; | |
4 | int clevel = 0; | |
5 | int spflg[20][10]; | |
6 | int sind[20][10]; | |
7 | int siflev[10]; | |
8 | int sifflg[10]; | |
9 | int iflev = 0; | |
10 | int ifflg = -1; | |
11 | int level = 0; | |
12 | int ind[10] = { | |
13 | 0,0,0,0,0,0,0,0,0,0 }; | |
14 | int eflg = 0; | |
15 | int paren = 0; | |
16 | int pflg[10] = { | |
17 | 0,0,0,0,0,0,0,0,0,0 }; | |
18 | char lchar; | |
19 | char pchar; | |
20 | int aflg = 0; | |
21 | int ct; | |
22 | int stabs[20][10]; | |
23 | int qflg = 0; | |
24 | char *wif[] = { | |
25 | "if",0}; | |
26 | char *welse[] = { | |
27 | "else",0}; | |
28 | char *wfor[] = { | |
29 | "for",0}; | |
30 | char *wds[] = { | |
31 | "case","default",0}; | |
32 | int j = 0; | |
33 | char string[200]; | |
34 | char cc; | |
35 | int sflg = 1; | |
36 | int peek = -1; | |
37 | int tabs = 0; | |
38 | int lastchar; | |
39 | int c; | |
40 | main(argc,argv) int argc; | |
41 | char argv[]; | |
42 | { | |
43 | while((c = getch()) != EOF){ | |
44 | switch(c){ | |
45 | case ' ': | |
46 | case '\t': | |
47 | if(lookup(welse) == 1){ | |
48 | gotelse(); | |
49 | if(sflg == 0 || j > 0)string[j++] = c; | |
50 | puts(); | |
51 | sflg = 0; | |
52 | continue; | |
53 | } | |
54 | if(sflg == 0 || j > 0)string[j++] = c; | |
55 | continue; | |
56 | case '\n': | |
57 | if((eflg = lookup(welse)) == 1)gotelse(); | |
58 | puts(); | |
59 | printf("\n"); | |
60 | sflg = 1; | |
61 | if(eflg == 1){ | |
62 | pflg[level]++; | |
63 | tabs++; | |
64 | } | |
65 | else | |
66 | if(pchar == lchar) | |
67 | aflg = 1; | |
68 | continue; | |
69 | case '{': | |
70 | if(lookup(welse) == 1)gotelse(); | |
71 | siflev[clevel] = iflev; | |
72 | sifflg[clevel] = ifflg; | |
73 | iflev = ifflg = 0; | |
74 | clevel++; | |
75 | if(sflg == 1 && pflg[level] != 0){ | |
76 | pflg[level]--; | |
77 | tabs--; | |
78 | } | |
79 | string[j++] = c; | |
80 | puts(); | |
81 | getnl(); | |
82 | puts(); | |
83 | printf("\n"); | |
84 | tabs++; | |
85 | sflg = 1; | |
86 | if(pflg[level] > 0){ | |
87 | ind[level] = 1; | |
88 | level++; | |
89 | slevel[level] = clevel; | |
90 | } | |
91 | continue; | |
92 | case '}': | |
93 | clevel--; | |
94 | if((iflev = siflev[clevel]-1) < 0)iflev = 0; | |
95 | ifflg = sifflg[clevel]; | |
96 | if(pflg[level] >0 && ind[level] == 0){ | |
97 | tabs -= pflg[level]; | |
98 | pflg[level] = 0; | |
99 | } | |
100 | puts(); | |
101 | tabs--; | |
102 | ptabs(); | |
103 | if((peek = getch()) == ';'){ | |
104 | printf("%c;",c); | |
105 | peek = -1; | |
106 | } | |
107 | else printf("%c",c); | |
108 | getnl(); | |
109 | puts(); | |
110 | printf("\n"); | |
111 | sflg = 1; | |
112 | if(clevel < slevel[level])if(level > 0)level--; | |
113 | if(ind[level] != 0){ | |
114 | tabs -= pflg[level]; | |
115 | pflg[level] = 0; | |
116 | ind[level] = 0; | |
117 | } | |
118 | continue; | |
119 | case '"': | |
120 | case '\'': | |
121 | string[j++] = c; | |
122 | while((cc = getch()) != c){ | |
123 | string[j++] = cc; | |
124 | if(cc == '\\'){ | |
125 | string[j++] = getch(); | |
126 | } | |
127 | if(cc == '\n'){ | |
128 | puts(); | |
129 | sflg = 1; | |
130 | } | |
131 | } | |
132 | string[j++] = cc; | |
133 | if(getnl() == 1){ | |
134 | lchar = cc; | |
135 | peek = '\n'; | |
136 | } | |
137 | continue; | |
138 | case ';': | |
139 | string[j++] = c; | |
140 | puts(); | |
141 | if(pflg[level] > 0 && ind[level] == 0){ | |
142 | tabs -= pflg[level]; | |
143 | pflg[level] = 0; | |
144 | } | |
145 | getnl(); | |
146 | puts(); | |
147 | printf("\n"); | |
148 | sflg = 1; | |
149 | if(iflev > 0) | |
150 | if(ifflg == 1){iflev--; | |
151 | ifflg = 0; | |
152 | } | |
153 | else iflev = 0; | |
154 | continue; | |
155 | case '\\': | |
156 | string[j++] = c; | |
157 | string[j++] = getch(); | |
158 | continue; | |
159 | case '?': | |
160 | qflg = 1; | |
161 | string[j++] = c; | |
162 | continue; | |
163 | case ':': | |
164 | string[j++] = c; | |
165 | if(qflg == 1){ | |
166 | qflg = 0; | |
167 | continue; | |
168 | } | |
169 | if(lookup(wds) == 0){ | |
170 | sflg = 0; | |
171 | puts(); | |
172 | } | |
173 | else{ | |
174 | tabs--; | |
175 | puts(); | |
176 | tabs++; | |
177 | } | |
178 | if((peek = getch()) == ';'){ | |
179 | printf(";"); | |
180 | peek = -1; | |
181 | } | |
182 | getnl(); | |
183 | puts(); | |
184 | printf("\n"); | |
185 | sflg = 1; | |
186 | continue; | |
187 | case '/': | |
188 | string[j++] = c; | |
189 | if((peek = getch()) != '*')continue; | |
190 | string[j++] = peek; | |
191 | peek = -1; | |
192 | comment(); | |
193 | continue; | |
194 | case ')': | |
195 | paren--; | |
196 | string[j++] = c; | |
197 | puts(); | |
198 | if(getnl() == 1){ | |
199 | peek = '\n'; | |
200 | if(paren != 0)aflg = 1; | |
201 | else if(tabs > 0){ | |
202 | pflg[level]++; | |
203 | tabs++; | |
204 | ind[level] = 0; | |
205 | } | |
206 | } | |
207 | continue; | |
208 | case '#': | |
209 | string[j++] = c; | |
210 | while((cc = getch()) != '\n')string[j++] = cc; | |
211 | string[j++] = cc; | |
212 | sflg = 0; | |
213 | puts(); | |
214 | sflg = 1; | |
215 | continue; | |
216 | case '(': | |
217 | string[j++] = c; | |
218 | paren++; | |
219 | if(lookup(wfor) == 1){ | |
220 | while((c = gets()) != ';'); | |
221 | ct=0; | |
222 | cont: | |
223 | while((c = gets()) != ')'){ | |
224 | if(c == '(') ct++; | |
225 | } | |
226 | if(ct != 0){ | |
227 | ct--; | |
228 | goto cont; | |
229 | } | |
230 | paren--; | |
231 | puts(); | |
232 | if(getnl() == 1){ | |
233 | peek = '\n'; | |
234 | pflg[level]++; | |
235 | tabs++; | |
236 | ind[level] = 0; | |
237 | } | |
238 | continue; | |
239 | } | |
240 | if(lookup(wif) == 1){ | |
241 | puts(); | |
242 | stabs[clevel][iflev] = tabs; | |
243 | spflg[clevel][iflev] = pflg[level]; | |
244 | sind[clevel][iflev] = ind[level]; | |
245 | iflev++; | |
246 | ifflg = 1; | |
247 | } | |
248 | continue; | |
249 | default: | |
250 | string[j++] = c; | |
251 | if(c != ',')lchar = c; | |
252 | } | |
253 | } | |
254 | } | |
255 | ptabs(){ | |
256 | int i; | |
257 | for(i=0; i < tabs; i++)printf("\t"); | |
258 | } | |
259 | getch(){ | |
260 | if(peek < 0 && lastchar != ' ' && lastchar != '\t')pchar = lastchar; | |
261 | lastchar = (peek<0) ? getc(stdin):peek; | |
262 | peek = -1; | |
263 | return(lastchar); | |
264 | } | |
265 | puts(){ | |
266 | if(j > 0){ | |
267 | if(sflg != 0){ | |
268 | ptabs(); | |
269 | sflg = 0; | |
270 | if(aflg == 1){ | |
271 | aflg = 0; | |
272 | if(tabs > 0)printf(" "); | |
273 | } | |
274 | } | |
275 | string[j] = '\0'; | |
276 | printf("%s",string); | |
277 | j = 0; | |
278 | } | |
279 | else{ | |
280 | if(sflg != 0){ | |
281 | sflg = 0; | |
282 | aflg = 0; | |
283 | } | |
284 | } | |
285 | } | |
286 | lookup(tab) | |
287 | char *tab[]; | |
288 | { | |
289 | char r; | |
290 | int l,kk,k,i; | |
291 | if(j < 1)return(0); | |
292 | kk=0; | |
293 | while(string[kk] == ' ')kk++; | |
294 | for(i=0; tab[i] != 0; i++){ | |
295 | l=0; | |
296 | for(k=kk;(r = tab[i][l++]) == string[k] && r != '\0';k++); | |
297 | if(r == '\0' && (string[k] < 'a' || string[k] > 'z' || k >= j))return(1); | |
298 | } | |
299 | return(0); | |
300 | } | |
301 | gets(){ | |
302 | char ch; | |
303 | beg: | |
304 | if((ch = string[j++] = getch()) == '\\'){ | |
305 | string[j++] = getch(); | |
306 | goto beg; | |
307 | } | |
308 | if(ch == '\'' || ch == '"'){ | |
309 | while((cc = string[j++] = getch()) != ch)if(cc == '\\')string[j++] = getch(); | |
310 | goto beg; | |
311 | } | |
312 | if(ch == '\n'){ | |
313 | puts(); | |
314 | aflg = 1; | |
315 | goto beg; | |
316 | } | |
317 | else return(ch); | |
318 | } | |
319 | gotelse(){ | |
320 | tabs = stabs[clevel][iflev]; | |
321 | pflg[level] = spflg[clevel][iflev]; | |
322 | ind[level] = sind[clevel][iflev]; | |
323 | ifflg = 1; | |
324 | } | |
325 | getnl(){ | |
326 | while((peek = getch()) == '\t' || peek == ' '){ | |
327 | string[j++] = peek; | |
328 | peek = -1; | |
329 | } | |
330 | if((peek = getch()) == '/'){ | |
331 | peek = -1; | |
332 | if((peek = getch()) == '*'){ | |
333 | string[j++] = '/'; | |
334 | string[j++] = '*'; | |
335 | peek = -1; | |
336 | comment(); | |
337 | } | |
338 | else string[j++] = '/'; | |
339 | } | |
340 | if((peek = getch()) == '\n'){ | |
341 | peek = -1; | |
342 | return(1); | |
343 | } | |
344 | return(0); | |
345 | } | |
346 | comment(){ | |
347 | rep: | |
348 | while((c = string[j++] = getch()) != '*') | |
349 | if(c == '\n'){ | |
350 | puts(); | |
351 | sflg = 1; | |
352 | } | |
353 | gotstar: | |
354 | if((c = string[j++] = getch()) != '/'){ | |
355 | if(c == '*')goto gotstar; | |
356 | goto rep; | |
357 | } | |
358 | } |