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Annotation of OpenXM/src/kan96xx/Kan/ext.c, Revision 1.39

1.39    ! takayama    1: /* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.38 2005/07/03 11:08:53 ohara Exp $ */
1.1       maekawa     2: #include <stdio.h>
1.38      ohara       3: #include <string.h>
1.1       maekawa     4: #include <sys/types.h>
                      5: #include <sys/stat.h>
                      6: #include <fcntl.h>
                      7: #include <stdlib.h>
                      8: #include <unistd.h>
                      9: #include <sys/wait.h>
                     10: #include "datatype.h"
                     11: #include "stackm.h"
                     12: #include "extern.h"
                     13: #include "extern2.h"
                     14: #include <signal.h>
                     15: #include "plugin.h"
1.17      takayama   16: #include "kclass.h"
1.10      takayama   17: #include <ctype.h>
1.22      takayama   18: #include <errno.h>
1.30      takayama   19: #include <regex.h>
1.15      takayama   20: #include "ox_pathfinder.h"
1.1       maekawa    21:
1.23      takayama   22: extern int Quiet;
1.14      takayama   23: extern char **environ;
1.39    ! takayama   24: extern char *MsgSourceTrace;
1.14      takayama   25:
1.1       maekawa    26: #define MYCP_SIZE 100
                     27: static int Mychildren[MYCP_SIZE];
                     28: static int Mycp = 0;
1.26      takayama   29: static int Verbose_mywait = 0;
1.1       maekawa    30: static void mywait() {
                     31:   int status;
                     32:   int pid;
                     33:   int i,j;
1.20      takayama   34:   /* signal(SIGCHLD,SIG_IGN); */
1.1       maekawa    35:   pid = wait(&status);
1.26      takayama   36:   if ((!Quiet) && (Verbose_mywait)) fprintf(stderr,"Child process %d is exiting.\n",pid);
1.1       maekawa    37:   for (i=0; i<Mycp; i++) {
                     38:     if (Mychildren[i]  == pid) {
                     39:       for (j=i; j<Mycp-1; j++) {
1.5       takayama   40:         Mychildren[j] = Mychildren[j+1];
1.1       maekawa    41:       }
                     42:       if (Mycp > 0) Mycp--;
                     43:     }
                     44:   }
                     45:   signal(SIGCHLD,mywait);
                     46: }
                     47:
                     48: #define SIZE_OF_ENVSTACK 5
1.9       takayama   49: #if defined(__CYGWIN__)
                     50: #define JMP_BUF sigjmp_buf
                     51: #else
                     52: #define JMP_BUF jmp_buf
                     53: #endif
                     54: static JMP_BUF EnvStack[SIZE_OF_ENVSTACK];
1.1       maekawa    55: static int Envp = 0;
1.9       takayama   56: static void pushEnv(JMP_BUF jb) {
1.1       maekawa    57:   if (Envp < SIZE_OF_ENVSTACK) {
                     58:     *(EnvStack[Envp]) = *jb;
                     59:     Envp++;
                     60:   }else{
                     61:     fprintf(stderr,"Overflow of  EnvStack.\n");
                     62:     exit(2);
                     63:   }
                     64: }
1.9       takayama   65: static void popEnv(JMP_BUF jbp) {
1.1       maekawa    66:   if (Envp <= 0) {
                     67:     fprintf(stderr,"Underflow of EnvStack.\n");
                     68:     exit(3);
                     69:   }else{
                     70:     Envp--;
                     71:     *jbp = *EnvStack[Envp];
                     72:   }
                     73: }
                     74:
                     75: static char *ext_generateUniqueFileName(char *s)
                     76: {
                     77:   char *t;
                     78:   int i;
                     79:   struct stat statbuf;
                     80:   t = (char *)sGC_malloc(sizeof(char)*strlen(s)+4+2);
                     81:   for (i=0; i<1000; i++) {
                     82:     /* Give up if we failed for 1000 names. */
                     83:     sprintf(t,"%s.%d",s,i);
                     84:     /* if (phc_overwrite) return(t); */
                     85:     if (stat(t,&statbuf) < 0) {
                     86:       return(t);
                     87:     }
                     88:   }
                     89:   errorKan1("%s\n","ext_generateUniqueFileName: could not generate a unique file name. Exhausted all the names.");
                     90:   return(NULL);
                     91: }
                     92:
1.30      takayama   93: static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag);
                     94:
1.1       maekawa    95: struct object Kextension(struct object obj)
                     96: {
                     97:   char *key;
                     98:   int size;
1.36      takayama   99:   struct object keyo = OINIT;
1.1       maekawa   100:   struct object rob = NullObject;
1.36      takayama  101:   struct object obj1 = OINIT;
                    102:   struct object obj2 = OINIT;
                    103:   struct object obj3 = OINIT;
                    104:   struct object obj4 = OINIT;
1.13      takayama  105:   int m,i,pid, uid;
1.1       maekawa   106:   int argListc, fdListc;
                    107:   char *abc;
                    108:   char *abc2;
                    109:   extern struct context *CurrentContextp;
1.9       takayama  110: #if (__CYGWIN__)
                    111:   extern sigjmp_buf EnvOfStackMachine;
                    112: #else
1.1       maekawa   113:   extern jmp_buf EnvOfStackMachine;
1.9       takayama  114: #endif
1.1       maekawa   115:   extern void ctrlC();
                    116:   extern int SigIgn;
                    117:   extern int DebugCMO;
                    118:   extern int OXprintMessage;
                    119:   struct stat buf;
                    120:   char **argv;
                    121:   FILE *fp;
1.3       takayama  122:   void (*oldsig)();
                    123:   extern SecureMode;
1.27      takayama  124:   extern char *UD_str;
                    125:   extern int UD_attr;
1.1       maekawa   126:
                    127:   if (obj.tag != Sarray) errorKan1("%s\n","Kextension(): The argument must be an array.");
                    128:   size = getoaSize(obj);
                    129:   if (size < 1) errorKan1("%s\n","Kextension(): Empty array.");
                    130:   keyo = getoa(obj,0);
                    131:   if (keyo.tag != Sdollar) errorKan1("%s\n","Kextension(): No key word.");
                    132:   key = KopString(keyo);
                    133:
                    134:   /* branch by they key word. */
                    135:   if (strcmp(key,"parse")==0) {
                    136:     if (size != 2) errorKan1("%s\n","[(parse)  string] extension.");
                    137:     obj1 = getoa(obj,1);
                    138:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(parse)  string] extension");
                    139:
                    140:     pushEnv(EnvOfStackMachine);
                    141:     m = KSexecuteString(obj1.lc.str);
                    142:     /* This is critical area. If you catch ctrl-c here, program crashes. */
                    143:     oldsig = signal(SIGINT,SIG_IGN);
                    144:     popEnv(EnvOfStackMachine);
                    145:     /* OK! We passed the critical area. */
                    146:     signal(SIGINT,oldsig);
                    147:     rob = KpoInteger(m);
                    148:   }else if (strcmp(key,"getpid") == 0) {
                    149:     rob = KpoInteger( (int) getpid() );
                    150:   }else if (strcmp(key,"flush") == 0) {
                    151:     /* fflush(NULL); */
                    152:     fflush(stdout);
                    153:     rob.tag = Snull;
                    154:   }else if (strcmp(key,"chattrs")==0) {
                    155:     if (size != 2) errorKan1("%s\n","[(chattrs)  num] extension.");
                    156:     obj1 = getoa(obj,1);
                    157:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattrs)  num] extension.");
                    158:     m = KopInteger(obj1);
1.28      takayama  159:        /* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
                    160:           errorKan1("%s\n","The number must be 0, 1 or 2.");*/
1.1       maekawa   161:     putUserDictionary2((char *)NULL,0,0,m | SET_ATTR_FOR_ALL_WORDS,
1.31      takayama  162:                        CurrentContextp->userDictionary);
                    163:   }else if (strcmp(key,"or_attrs")==0) {
                    164:     if (size != 2) errorKan1("%s\n","[(or_attrs)  num] extension.");
                    165:     obj1 = getoa(obj,1);
                    166:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attrs)  num] extension.");
                    167:     m = KopInteger(obj1);
                    168:     putUserDictionary2((char *)NULL,0,0,m | OR_ATTR_FOR_ALL_WORDS,
1.5       takayama  169:                        CurrentContextp->userDictionary);
1.1       maekawa   170:   }else if (strcmp(key,"keywords")==0) {
                    171:     if (size != 1) errorKan1("%s\n","[(keywords)] extension.");
                    172:     rob = showSystemDictionary(1);
                    173:     /*  }else if (strcmp(key,"fork0")==0) {
1.5       takayama  174:         if (size != 2) errorKan1("%s\n","[(fork0) sss] extension.");
                    175:         m = fork();
                    176:         if (m>0) { rob = KpoInteger(m); }
                    177:         else {
                    178:         system(KopString(getoa(obj,1))); exit(0);
                    179:         } */
                    180:   }else if (strcmp(key,"defaultPolyRing")==0) {
                    181:     if (size != 2) errorKan1("%s\n","[(defaultPolyRing) n] extension.");
                    182:     rob = KdefaultPolyRing(getoa(obj,1));
                    183:   }else if (strcmp(key,"getenv")==0) {
                    184:     if (size != 2) errorKan1("%s\n","[(getenv) envstr] extension.");
                    185:     obj1 = getoa(obj,1);
                    186:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(getenv) envstr] extension");
                    187:     abc = getenv(KopString(obj1));
1.10      takayama  188: #if defined(__CYGWIN__)
                    189:     if (abc == NULL) {
1.11      takayama  190:          abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(KopString(obj1))+2));
1.10      takayama  191:       strcpy(abc2,KopString(obj1));
                    192:          for (i=0; i<strlen(abc2); i++) {
                    193:                abc2[i] = toupper(abc2[i]);
                    194:          }
                    195:       abc = getenv(abc2);
                    196:     }
                    197: #endif
1.5       takayama  198:     if (abc == NULL) {
                    199:       rob = NullObject;
                    200:     }else{
                    201:       abc2 = (char *)sGC_malloc(sizeof(char)*(strlen(abc)+2));
                    202:       strcpy(abc2,abc);
                    203:       rob = KpoString(abc2);
                    204:     }
                    205:   }else if (strcmp(key,"stat")==0) {
                    206:     if (size != 2) errorKan1("%s\n","[(stat) fname] extension.");
                    207:     obj1 = getoa(obj,1);
                    208:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(stat) fname] extension ; string fname.");
                    209:     m = stat(KopString(obj1),&buf);
                    210:     rob = newObjectArray(2);
                    211:     if (m == -1) {
                    212:       /* fail */
                    213:       obj2 = NullObject;
                    214:       putoa(rob,0,obj2);
                    215:       obj3 = newObjectArray(2);
                    216:       putoa(obj3,0,KpoString("error no"));
                    217:       putoa(obj3,1,KpoInteger(errno));
                    218:       putoa(rob,1,obj3);
                    219:     }else{
                    220:       /* success */
                    221:       putoa(rob,0,KpoInteger(0));
                    222:       obj3 = newObjectArray(1);
                    223:       putoa(obj3,0,KpoInteger((int) buf.st_size));
                    224:       putoa(rob,1,obj3); /* We have not yet read buf fully */
                    225:     }
1.32      takayama  226:   }else if (strcmp(key,"gethostname")==0) {
                    227:     abc = (char *)sGC_malloc(sizeof(char)*1024);
                    228:     if (gethostname(abc,1023) < 0) {
                    229:          errorKan1("%s\n","hostname could not be obtained.");
                    230:        }
                    231:        rob = KpoString(abc);
1.5       takayama  232:   }else if (strcmp(key,"forkExec")==0) {
                    233:     if (size != 4) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension.");
                    234:     obj1 = getoa(obj,1);
1.14      takayama  235:        if (obj1.tag == Sdollar) {
                    236:          obj1 = KstringToArgv(obj1);
                    237:        }
1.5       takayama  238:     if (obj1.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array argList.");
1.14      takayama  239:        obj2 = getoa(obj,2);
1.5       takayama  240:     if (obj2.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array fdList.");
                    241:     obj3 = getoa(obj,3);
                    242:     if (obj3.tag != Sinteger) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. integer sigblock.");
1.7       takayama  243:     m = KopInteger(obj3);  /* m&1 : block ctrl-C. */
1.5       takayama  244:     argListc = getoaSize(obj1);
                    245:     fdListc =  getoaSize(obj2);
1.6       takayama  246:     if ((pid = fork()) > 0) {
1.5       takayama  247:       /* parent */
1.7       takayama  248:       if (m&2) {
1.6       takayama  249:          /* Do not call singal to turn around a trouble on cygwin. BUG. */
                    250:       }else{
                    251:          signal(SIGCHLD,mywait); /* to kill Zombie */
                    252:       }
                    253:       Mychildren[Mycp++] = pid;
1.5       takayama  254:       if (Mycp >= MYCP_SIZE-1) {
                    255:         errorKan1("%s\n","Child process table is full.\n");
                    256:         Mycp = 0;
                    257:       }
1.6       takayama  258:       rob = KpoInteger(pid);
1.5       takayama  259:       /* Done */
                    260:     }else{
                    261:       /* Child */
                    262:       for (i=0; i<fdListc; i++) {
                    263:         /* close the specified files */
                    264:         close(KopInteger(getoa(obj2,i)));
1.1       maekawa   265:       }
1.5       takayama  266:       /* execl */
1.7       takayama  267:       if (m&1) {
1.5       takayama  268:         {
                    269:           sigset_t sss;
                    270:           sigemptyset(&sss);
                    271:           sigaddset(&sss,SIGINT);
                    272:           sigprocmask(SIG_BLOCK,&sss,NULL);
                    273:         }
1.1       maekawa   274:       }
1.5       takayama  275:       argv = (char **) sGC_malloc(sizeof(char *)*(argListc+1));
                    276:       if (argv == NULL) {
                    277:         fprintf(stderr," no more momory. forkExec --- exiting.\n");
                    278:         _exit(10);
1.1       maekawa   279:       }
1.5       takayama  280:       for (i=0; i<argListc; i++) {
                    281:         argv[i] = KopString(getoa(obj1,i));
                    282:         argv[i+1] = NULL;
1.7       takayama  283:       }
                    284:
                    285:       if (m&4) {
                    286:        fprintf(stderr,"execv %s\n",argv[0]);
                    287:        sleep(5);
                    288:         fprintf(stderr,">>>\n");
1.1       maekawa   289:       }
1.14      takayama  290:       execve(argv[0],argv,environ);
1.5       takayama  291:       /* This place will never be reached unless execv fails. */
                    292:       fprintf(stderr,"forkExec fails: ");
                    293:       for (i=0; i<argListc; i++) {
                    294:         fprintf(stderr,"%s ",argv[i]);
                    295:       }
                    296:       fprintf(stderr,"\nExiting, but staying as Zombie.\n");
                    297:       _exit(10);
                    298:     }
                    299:   }else if (strcmp(key,"getchild")==0) {
                    300:     if (size != 1) errorKan1("%s\n","[(getchild)] extension.");
                    301:     rob = newObjectArray(Mycp);
                    302:     for (i=0; i<Mycp; i++) {
                    303:       putoa(rob,i,KpoInteger(Mychildren[i]));
1.1       maekawa   304:     }
1.5       takayama  305:   }else if (strcmp(key,"getUniqueFileName")==0) {
                    306:     if (size != 2) errorKan1("%s\n","[(getUniqueFileName) path] extension.");
                    307:     obj1 = getoa(obj,1);
                    308:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(getUniqueFileName) path] extension. path must be a string.");
                    309:     rob = KpoString(ext_generateUniqueFileName(KopString(obj1)));
                    310:   }else if (strcmp(key,"outputObjectToFile")==0) {
                    311:     if (size != 3) errorKan1("%s\n","[(outputObjectToFile) path obj] extension.");
                    312:     obj1 = getoa(obj,1);
                    313:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(outputObjectToFile) path obj] extension. path must be a string.");
                    314:     obj2 = getoa(obj,2);
                    315:     fp = fopen(KopString(obj1),"w");
                    316:     if (fp == NULL) errorKan1("%s\n","[(outputObjectToFile) path object] extension : could not open the path.");
                    317:     printObject(obj2,0,fp);
                    318:     fclose(fp);
                    319:     rob = NullObject;
1.35      takayama  320:   }else if (strcmp(key,"getAttributeList")==0) {
                    321:     if (size != 2) errorKan1("%s\n","[(getAttributeList) ob] extension rob");
                    322:     rob = KgetAttributeList(getoa(obj,1));
1.37      takayama  323:   }else if (strcmp(key,"setAttributeList")==0) {
                    324:     if (size != 3) errorKan1("%s\n","[(setAttributeList) ob attrlist] extension rob");
                    325:     rob = KsetAttributeList(getoa(obj,1), getoa(obj,2));
1.35      takayama  326:   }else if (strcmp(key,"getAttribute")==0) {
                    327:     if (size != 3) errorKan1("%s\n","[(getAttribute) ob key] extension rob");
                    328:     rob = KgetAttribute(getoa(obj,1),getoa(obj,2));
1.37      takayama  329:   }else if (strcmp(key,"setAttribute")==0) {
                    330:     if (size != 4) errorKan1("%s\n","[(setAttributeList) ob key value] extension rob");
                    331:     rob = KsetAttribute(getoa(obj,1), getoa(obj,2),getoa(obj,3));
1.5       takayama  332:   }else if (strcmp(key,"hilbert")==0) {
                    333:     if (size != 3) errorKan1("%s\n","[(hilbert) obgb obvlist] extension.");
                    334:     rob = hilberto(getoa(obj,1),getoa(obj,2));
1.13      takayama  335:   }else if (strcmp(key,"nobody") == 0) {
                    336:       uid = getuid();
                    337:          if (uid == 0) {
                    338: #define NOBODY 65534
                    339:                /* If I'm a super user, then change uid to nobody. */
                    340:                if (setuid(NOBODY) != 0) {
                    341:                  fprintf(stderr,"Failed to change uid to nobody (%d)\n",NOBODY);
                    342:                  exit(10);
                    343:                }
                    344:                fprintf(stderr,"uid is changed to nobody (%d).\n",NOBODY);
                    345:                rob.tag = Snull;
                    346:          }
1.5       takayama  347:   }else if (strcmp(key,"chattr")==0) {
                    348:     if (size != 3) errorKan1("%s\n","[(chattr)  num symbol] extension.");
                    349:     obj1 = getoa(obj,1);
                    350:     obj2 = getoa(obj,2);
                    351:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattr)  num symbol] extension.");
                    352:     if (obj2.tag != Sstring)  errorKan1("%s\n","[(chattr)  num symbol] extension.");
                    353:     m = KopInteger(obj1);
1.28      takayama  354:        /* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
                    355:           errorKan1("%s\n","The number must be 0, 1 or 2.");*/
1.29      takayama  356:     putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
                    357:                        m,CurrentContextp->userDictionary);
                    358:   }else if (strcmp(key,"or_attr")==0) {
                    359:     if (size != 3) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
                    360:     obj1 = getoa(obj,1);
                    361:     obj2 = getoa(obj,2);
                    362:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
                    363:     if (obj2.tag != Sstring)  errorKan1("%s\n","[(or_attr)  num symbol] extension.");
                    364:     m = KopInteger(obj1);
                    365:     rob = KfindUserDictionary(obj2.lc.str);
                    366:     if (rob.tag != NoObject.tag) {
                    367:       if (strcmp(UD_str,obj2.lc.str) == 0) {
                    368:         m |= UD_attr;
                    369:       }else errorKan1("%s\n","or_attr: internal error.");
                    370:     }
                    371:     rob = KpoInteger(m);
1.5       takayama  372:     putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
                    373:                        m,CurrentContextp->userDictionary);
1.27      takayama  374:   }else if (strcmp(key,"getattr")==0) {
                    375:     if (size != 2) errorKan1("%s\n","[(getattr) symbol] extension.");
                    376:     obj1 = getoa(obj,1);
                    377:     if (obj1.tag != Sstring)  errorKan1("%s\n","[(getattr) symbol] extension.");
                    378:     rob = KfindUserDictionary(obj1.lc.str);
                    379:        if (rob.tag != NoObject.tag) {
                    380:          if (strcmp(UD_str,obj1.lc.str) == 0) {
                    381:                rob = KpoInteger(UD_attr);
                    382:          }else errorKan1("%s\n","getattr: internal error.");
                    383:        }else rob = NullObject;
1.15      takayama  384:   }else if (strcmp(key,"getServerEnv")==0) {
                    385:     if (size != 2) errorKan1("%s\n","[(getServerEnv) serverName] extension.");
                    386:     obj1 = getoa(obj,1);
                    387:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(getServerEnv) serverName] extension.");
                    388:     {
                    389:       char **se; int ii; int nn;
                    390:       se = getServerEnv(KopString(obj1));
                    391:       if (se == NULL) {
                    392:         debugServerEnv(KopString(obj1));
                    393:         rob = NullObject;
                    394:       }else{
                    395:         for (ii=0,nn=0; se[ii] != NULL; ii++) nn++;
                    396:         rob = newObjectArray(nn);
                    397:         for (ii=0; ii<nn; ii++) {
                    398:           putoa(rob,ii,KpoString(se[ii]));
                    399:         }
                    400:       }
                    401:     }
1.33      takayama  402:   }else if (strcmp(key,"read")==0) {
                    403:     if (size != 3) errorKan1("%s\n","[(read) fd size] extension.");
                    404:     obj1 = getoa(obj,1);
                    405:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. fd must be an integer.");
                    406:     obj2 = getoa(obj,2);
                    407:     if (obj2.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. size must be an integer.");
                    408:     {
                    409:       int total, n, fd;
                    410:       char *s; char *s0;
                    411:       fd = KopInteger(obj1);
                    412:       total = KopInteger(obj2);
                    413:       if (total <= 0) errorKan1("%s\n","[(read) ...]; negative size has not yet been implemented.");
                    414:       /* Return a string. todo: implement SbyteArray case. */
                    415:       s0 = s = (char *) sGC_malloc(total+1);
                    416:       if (s0 == NULL) errorKan1("%s\n","[(read) ...]; no more memory.");
                    417:       while (total >0) {
                    418:         n = read(fd, s, total);
                    419:         if (n < 0) { perror("read"); errorKan1("%s\n","[(read) ...]; read error.");}
                    420:         s[n] = 0;
                    421:         total -= n;  s = &(s[n]);
                    422:       }
                    423:       rob = KpoString(s0);
                    424:     }
1.12      takayama  425:   }else if (strcmp(key,"regionMatches")==0) {
                    426:     if (size != 3) errorKan1("%s\n","[(regionMatches) str strArray] extension.");
                    427:     obj1 = getoa(obj,1);
                    428:     if (obj1.tag != Sdollar) errorKan1("%s\n","[(regionMatches) str strArray] extension. str must be a string.");
                    429:        obj2 = getoa(obj,2);
                    430:     if (obj2.tag != Sarray) errorKan1("%s\n","[(regionMatches) str strArray] extension. strArray must be an array.");
                    431:     rob = KregionMatches(obj1,obj2);
1.16      takayama  432:   }else if (strcmp(key,"newVector")==0) {
                    433:     if (size != 2) errorKan1("%s\n","[(newVector) m] extension.");
                    434:     obj1 = getoa(obj,1);
                    435:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(newVector) m] extension. m must be an integer.");
                    436:     rob = newObjectArray(KopInteger(obj1));
                    437:   }else if (strcmp(key,"newMatrix")==0) {
                    438:     if (size != 3) errorKan1("%s\n","[(newMatrix) m n] extension.");
                    439:     obj1 = getoa(obj,1);
                    440:     if (obj1.tag != Sinteger) errorKan1("%s\n","[(newMatrix) m n] extension. m must be an integer.");
                    441:        obj2 = getoa(obj,2);
                    442:     if (obj2.tag != Sinteger) errorKan1("%s\n","[(newMatrix) m n] extension. n must be an integer.");
                    443:     rob = newObjectArray(KopInteger(obj1));
                    444:        for (i=0; i<KopInteger(obj1); i++) {
                    445:       putoa(rob,i,newObjectArray(KopInteger(obj2)));
                    446:        }
1.21      takayama  447:   }else if (strcmp(key,"ooPower")==0) {
                    448:     if (size != 3) errorKan1("%s\n","[(ooPower) a b] extension.");
                    449:     obj1 = getoa(obj,1);
                    450:        obj2 = getoa(obj,2);
                    451:     rob = KooPower(obj1,obj2);
1.25      takayama  452:   }else if (strcmp(key,"Krest")==0) {
                    453:     if (size != 2) errorKan1("%s\n","[(Krest) a] extension b");
                    454:     obj1 = getoa(obj,1);
                    455:     rob = Krest(obj1);
                    456:   }else if (strcmp(key,"Kjoin")==0) {
                    457:     if (size != 3) errorKan1("%s\n","[(Kjoin) a b] extension c");
                    458:     obj1 = getoa(obj,1);
                    459:        obj2 = getoa(obj,2);
                    460:     rob = Kjoin(obj1,obj2);
1.8       takayama  461:   }else if (strcmp(key,"ostype")==0) {
                    462:     rob = newObjectArray(1);
                    463:     /* Hard encode the OS type. */
                    464: #if defined(__CYGWIN__)
                    465:     putoa(rob,0,KpoString("windows"));
                    466: #else
                    467:     putoa(rob,0,KpoString("unix"));
                    468: #endif
1.24      takayama  469:   }else if (strcmp(key,"traceClearStack")==0) {
                    470:     traceClearStack();
                    471:     rob = NullObject;
                    472:   }else if (strcmp(key,"traceShowStack")==0) {
                    473:     char *ssst;
                    474:     ssst = traceShowStack();
1.39    ! takayama  475:     if (ssst != NULL) {
        !           476:       rob = KpoString(ssst);
        !           477:     }else{
        !           478:       rob = NullObject;
        !           479:     }
        !           480:   }else if (strcmp(key,"traceShowScannerBuf")==0) {
        !           481:     char *ssst;
        !           482:     ssst = MsgSourceTrace;
1.24      takayama  483:     if (ssst != NULL) {
                    484:       rob = KpoString(ssst);
                    485:     }else{
                    486:       rob = NullObject;
                    487:     }
1.30      takayama  488:   }else if (strcmp(key,"regexec")==0) {
                    489:     if ((size != 3) && (size != 4)) errorKan1("%s\n","[(regexec) reg strArray flag(optional)] extension b");
                    490:     obj1 = getoa(obj,1);
                    491:     if (obj1.tag != Sdollar) errorKan1("%s\n","regexec, the first argument should be a string (regular expression).");
                    492:     obj2 = getoa(obj,2);
                    493:     if (obj2.tag != Sarray) errorKan1("%s\n","regexec, the second argument should be an array of a string.");
                    494:     if (size == 3) obj3 = newObjectArray(0);
                    495:     else obj3 = getoa(obj,3);
                    496:     rob = oregexec(obj1,obj2,obj3);
1.34      takayama  497:   }else if (strcmp(key,"unlink")==0) {
                    498:     if (size != 2) errorKan1("%s\n","[(unlink) filename] extension b");
                    499:     obj1 = getoa(obj,1);
                    500:     if (obj1.tag != Sdollar) errorKan1("%s\n","unlink, the first argument should be a string (filename).");
                    501:     rob = KpoInteger(oxDeleteFile(KopString(obj1)));
1.5       takayama  502:   }
1.1       maekawa   503: #include "plugin.hh"
1.17      takayama  504: #include "Kclass/tree.hh"
1.1       maekawa   505:   else{
1.33      takayama  506:        fprintf(stderr,"key=%s; ",key);
                    507:     errorKan1("%s\n","Unknown key for extension.");
1.1       maekawa   508:   }
                    509:
                    510:
                    511:   return(rob);
1.12      takayama  512: }
                    513:
                    514: struct object KregionMatches(struct object sobj, struct object keyArray)
                    515: {
1.36      takayama  516:   struct object rob = OINIT;
1.12      takayama  517:   int n,i,j,m,keyn;
                    518:   char *s,*key;
                    519:   rob = newObjectArray(3);
                    520:   getoa(rob,0) = KpoInteger(-1);
                    521:   getoa(rob,1) = NullObject;
                    522:   getoa(rob,2) = NullObject;
                    523:
                    524:   if (sobj.tag != Sdollar) return rob;
                    525:   if (keyArray.tag != Sarray) return rob;
                    526:   n = getoaSize(keyArray);
                    527:   for (i=0; i<n; i++) {
                    528:        if (getoa(keyArray,i).tag != Sdollar) { return rob; }
                    529:   }
                    530:
                    531:   s = KopString(sobj);
                    532:   m = strlen(s);
                    533:
                    534:   for (i=0; i<n; i++) {
                    535:        key = KopString(getoa(keyArray,i));
                    536:        keyn = strlen(key);
                    537:        for (j=0; j<m; j++) {
                    538:          if (strncmp(&(s[j]),key,keyn) == 0) {
                    539:                getoa(rob,0) = KpoInteger(j);
                    540:                getoa(rob,1) = KpoString(key);
                    541:                getoa(rob,2) = KpoInteger(i);
                    542:                return rob;
                    543:          }
                    544:        }
                    545:   }
                    546:   return rob;
1.1       maekawa   547: }
                    548:
1.30      takayama  549: static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag) {
1.36      takayama  550:   struct object rob = OINIT;
                    551:   struct object ob = OINIT;
1.30      takayama  552:   int n,i,j,m,keyn,cflag,eflag,er;
                    553:   char *regex;
                    554:   regex_t preg;
                    555:   char *s;
                    556:   char *mbuf; int mbufSize;
                    557: #define REGMATCH_SIZE 100
                    558:   regmatch_t pmatch[100]; size_t nmatch;
                    559:   int size;
                    560:
                    561:   nmatch = (size_t) REGMATCH_SIZE;
                    562:   rob = newObjectArray(0);
                    563:   mbufSize = 1024;
                    564:
                    565:   if (oregex.tag != Sdollar) return rob;
                    566:   if (ostrArray.tag != Sarray) return rob;
                    567:   n = getoaSize(ostrArray);
                    568:   for (i=0; i<n; i++) {
                    569:     if (getoa(ostrArray,i).tag != Sdollar) { return rob; }
                    570:   }
                    571:   if (oflag.tag != Sarray) errorKan1("%s\n","oregexec: oflag should be an array of integers.");
                    572:   cflag = eflag = 0;
                    573:   oflag = Kto_int32(oflag);
                    574:   for (i=0; i<getoaSize(oflag); i++) {
                    575:     ob = getoa(oflag,i);
                    576:     if (ob.tag != Sinteger) errorKan1("%s\n","oregexec: oflag is not an array of integers.");
                    577:     if (i == 0) cflag = KopInteger(ob);
                    578:     if (i == 1) eflag = KopInteger(ob);
                    579:   }
                    580:
                    581:   regex = KopString(oregex);
                    582:   if (er=regcomp(&preg,regex,cflag)) {
                    583:     mbuf = (char *) sGC_malloc(mbufSize);
                    584:     if (mbuf == NULL) errorKan1("%s\n","No more memory.");
                    585:     regerror(er,&preg,mbuf,mbufSize-1);
                    586:     errorKan1("regcomp error: %s\n",mbuf);
                    587:   }
                    588:
                    589:   size = 0; /* We should use list instead of counting the size. */
                    590:   for (i=0; i<n; i++) {
                    591:     s = KopString(getoa(ostrArray,i));
                    592:     er=regexec(&preg,s,nmatch,pmatch,eflag);
                    593:     if ((er != 0) && (er != REG_NOMATCH)) {
                    594:       mbuf = (char *) sGC_malloc(mbufSize);
                    595:       if (mbuf == NULL) errorKan1("%s\n","No more memory.");
                    596:       regerror(er,&preg,mbuf,mbufSize-1);
                    597:       errorKan1("regcomp error: %s\n",mbuf);
                    598:     }
                    599:     if (er == 0) size++;
                    600:   }
                    601:
                    602:   rob = newObjectArray(size);
                    603:   size = 0;
                    604:   for (i=0; i<n; i++) {
                    605:     s = KopString(getoa(ostrArray,i));
                    606:     er=regexec(&preg,s,nmatch,pmatch,eflag);
                    607:     if ((er != 0) && (er != REG_NOMATCH)) {
                    608:       mbuf = (char *) sGC_malloc(mbufSize);
                    609:       if (mbuf == NULL) errorKan1("%s\n","No more memory.");
                    610:       regerror(er,&preg,mbuf,mbufSize-1);
                    611:       errorKan1("regcomp error: %s\n",mbuf);
                    612:     }
                    613:     if (er == 0) {
                    614:       ob = newObjectArray(3);
                    615:       putoa(ob,0,KpoString(s));
                    616:       /* temporary */
                    617:       putoa(ob,1,KpoInteger((int) (pmatch[0].rm_so)));
                    618:       putoa(ob,2,KpoInteger((int) (pmatch[0].rm_eo)));
                    619:       putoa(rob,size,ob);
                    620:       size++;
                    621:     }
                    622:   }
                    623:   regfree(&preg);
                    624:   return rob;
                    625: }

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