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1.1 root 1: #include <stdio.h>
2: #include "def.h"
3: #include "4.def.h"
4: #include "3.def.h"
5:
6: outrat(v,tab,tabfirst)
7: VERT v;
8: int tab; /* number of tabs to indent */
9: LOGICAL tabfirst; /* FALSE if doing IF of ELSE IF */
10: {
11: LOGICAL ndcomma;
12: VERT w;
13: int type,i;
14: type = NTYPE(v);
15: if (hascom[type])
16: prcom(v);
17: if (!LABEL(v) && type == FMTVX)
18: {
19: OUTSTR("#following unreferenced format statement commented out\n");
20: OUTSTR("#");
21: }
22: if (LABEL(v) && type != ITERVX)
23: {
24: ASSERT(tabfirst, outrat);
25: prlab(LABEL(v),tab);
26: }
27: else if (tabfirst && type != DUMVX && type != ITERVX)
28: TABOVER(tab);
29:
30: switch(type)
31: {
32: case DUMVX:
33: newlevel(v,0,tab,YESTAB);
34: break;
35: case GOVX:
36: OUTSTR("go to ");
37: OUTNUM(LABEL(ARC(v,0)));
38: OUTSTR("\n");
39: break;
40: case STOPVX:
41: if (progtype != blockdata)
42: OUTSTR("stop\n");
43: break;
44: case RETVX:
45: OUTSTR("return\n");
46: break;
47: case BRKVX:
48: if (!levbrk)
49: {
50: ASSERT(LEVEL(v) == 1,outrat);
51: OUTSTR("break\n");
52: }
53: else
54: {
55: OUTSTR("break ");
56: OUTNUM(LEVEL(v));
57: OUTSTR("\n");
58: }
59: break;
60: case NXTVX:
61: if (!levnxt)
62: {
63: ASSERT(LEVEL(v) == 1,outrat);
64: OUTSTR("next\n");
65: }
66: else
67: {
68: OUTSTR("next ");
69: OUTNUM(LEVEL(v));
70: OUTSTR("\n");
71: }
72: break;
73: case ASGOVX:
74: case COMPVX:
75: OUTSTR("goto ");
76: if (type == ASGOVX)
77: {
78: OUTSTR(EXP(v));
79: OUTSTR(",");
80: }
81: OUTSTR("(");
82: for (i = ARCNUM(v)-1; i >=0; --i) /* arcs were stored backward */
83: {
84: OUTNUM(LABEL(ARC(v,i)));
85: if (i > 0) OUTSTR(",");
86: }
87: OUTSTR(")");
88: if (type == COMPVX)
89: {
90: OUTSTR(",");
91: OUTSTR(EXP(v));
92: }
93: OUTSTR("\n");
94: break;
95: case ASVX:
96: OUTSTR("assign ");
97: OUTNUM(LABEL(LABREF(v)));
98: OUTSTR(" to ");
99: OUTSTR(EXP(v));
100: OUTSTR("\n");
101: break;
102: case IFVX:
103: OUTSTR("IF");
104: prpred(v,TRUE);
105: if (IFTHEN(v))
106: newlevel(v,THEN,tab+1,YESTAB);
107: else
108: {
109: newlevel(v,THEN,tab+1,YESTAB);
110: TABOVER(tab);
111: OUTSTR("ELSE ");
112: w = LCHILD(v,ELSE);
113: ASSERT(DEFINED(w),outrat);
114: if (NTYPE(w) == IFVX && !LABEL(w) && !DEFINED(RSIB(w)) &&
115: !HASBRACE(v,ELSE) )
116: newlevel(v,ELSE,tab,NOTAB);
117: else
118: newlevel(v,ELSE,tab+1,YESTAB);
119: }
120: break;
121: case ITERVX:
122: newlevel(v,0,tab,YESTAB);
123: ASSERT(DEFINED(NXT(v)),outrat);
124: if (LABEL(NXT(v)))
125: {
126: prlab(LABEL(NXT(v)),tab);
127: OUTSTR("continue\n");
128: }
129: break;
130: case DOVX:
131: OUTSTR("DO ");
132: OUTSTR(INC(v));
133: newlevel(v,0,tab+1,YESTAB);
134: break;
135: case LOOPVX:
136: case UNTVX:
137: OUTSTR("REPEAT");
138: newlevel(v,0,tab+1,YESTAB);
139: if (type == UNTVX)
140: {
141: TABOVER(tab+1);
142: OUTSTR("UNTIL");
143: ASSERT(DEFINED(ARC(v,0)),outrat);
144: prpred(LPRED(ARC(v,0)),TRUE);
145: OUTSTR("\n");
146: }
147: break;
148: case WHIVX:
149: OUTSTR("WHILE");
150: ASSERT(DEFINED(ARC(v,0)),outrat);
151: ASSERT(DEFINED(LPRED(ARC(v,0))),outrat);
152: prpred(LPRED(ARC(v,0)),TRUE);
153: newlevel(v,0,tab+1,YESTAB);
154: break;
155: case STLNVX:
156: case FMTVX:
157: prstln(v,tab);
158: break;
159: case SWCHVX:
160: OUTSTR("SWITCH");
161: if (DEFINED(EXP(v)))
162: {
163: OUTSTR("(");
164: OUTSTR(EXP(v));
165: OUTSTR(")");
166: }
167: newlevel(v,0,tab+1,YESTAB);
168: break;
169: case ICASVX:
170: case ACASVX:
171: OUTSTR("CASE ");
172: if (type == ACASVX)
173: prpred(v,FALSE);
174: else
175: OUTSTR(EXP(v));
176: OUTSTR(":\n");
177: newlevel(v,0,tab+1,YESTAB);
178: if (type == ACASVX &&DEFINED(LCHILD(v,ELSE)))
179: {
180: TABOVER(tab);
181: OUTSTR("DEFAULT:\n");
182: newlevel(v,1,tab+1,YESTAB);
183: }
184: break;
185: case IOVX:
186: OUTSTR(PRERW(v));
187: ndcomma = FALSE;
188: if (DEFINED(FMTREF(v)))
189: {
190: OUTNUM(LABEL(FMTREF(v)));
191: ndcomma = TRUE;
192: }
193: if (DEFINED(ARC(v,ENDEQ)))
194: {
195: if (ndcomma)
196: OUTSTR(",");
197: OUTSTR("end = ");
198: OUTNUM(LABEL(ARC(v,ENDEQ)));
199: ndcomma = TRUE;
200: }
201: if (DEFINED(ARC(v,ERREQ)))
202: {
203: if (ndcomma)
204: OUTSTR(",");
205: OUTSTR("err = ");
206: OUTNUM(LABEL(ARC(v,ERREQ)));
207: ndcomma = TRUE;
208: }
209: OUTSTR(POSTRW(v));
210: OUTSTR("\n");
211: break;
212: }
213: }
214:
215:
216: newlevel(v,ch,tab,tabfirst)
217: VERT v;
218: int ch; /* number of lchild of v being processed */
219: int tab; /* number of tabs to indent */
220: LOGICAL tabfirst; /* same as for outrat */
221: {
222: LOGICAL addbrace;
223: VERT w;
224: if (NTYPE(v) == ACASVX || NTYPE(v) == ICASVX)
225: addbrace = FALSE;
226: else
227: addbrace = HASBRACE(v,ch);
228: ASSERT(tabfirst || !addbrace,newlevel);
229: if (addbrace)
230: OUTSTR(" {");
231: if(tabfirst && NTYPE(v)!=ITERVX && NTYPE(v)!=DUMVX) OUTSTR("\n");
232: for (w = LCHILD(v,ch); DEFINED(w); w = RSIB(w))
233: outrat(w,tab,tabfirst);
234: if (addbrace)
235: {
236: TABOVER(tab);
237: OUTSTR("}\n");
238: }
239: }
240:
241:
242:
243:
244:
245: prpred(v,addpar)
246: VERT v;
247: LOGICAL addpar;
248: {
249: if (addpar)
250: OUTSTR("(");
251: if (NEG(v)) OUTSTR("!(");
252: OUTSTR(PRED(v));
253: if (NEG(v)) OUTSTR(")");
254: if (addpar)
255: OUTSTR(")");
256: }
257:
258: prlab(n,tab)
259: int n,tab;
260: {
261: TABOVER(tab);
262: OUTSTR("~");
263: OUTNUM(n);
264: OUTSTR(" ");
265: }
266:
267: prstln(v,tab)
268: VERT v;
269: int tab;
270: {
271: ASSERT(NTYPE(v) == STLNVX || NTYPE(v) == FMTVX,prstln);
272: if (!ONDISK(v))
273: {
274: OUTSTR(BEGCODE(v));
275: OUTSTR("\n");
276: }
277: else
278: {
279: empseek(BEGCODE(v));
280: prcode(ONDISK(v),tab);
281: }
282: }
283:
284: prcom(v)
285: VERT v;
286: {
287: if (DEFINED(BEGCOM(v)))
288: {
289: empseek(BEGCOM(v));
290: comprint();
291: }
292: }
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