| 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 | } |