===================================================================
RCS file: /home/cvs/OpenXM/src/kan96xx/Kan/ext.c,v
retrieving revision 1.21
retrieving revision 1.34
diff -u -p -r1.21 -r1.34
--- OpenXM/src/kan96xx/Kan/ext.c	2003/12/06 02:49:22	1.21
+++ OpenXM/src/kan96xx/Kan/ext.c	2004/12/21 03:25:04	1.34
@@ -1,4 +1,4 @@
-/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.20 2003/12/04 07:49:24 takayama Exp $ */
+/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.33 2004/11/23 01:37:47 takayama Exp $ */
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -14,20 +14,24 @@
 #include "plugin.h"
 #include "kclass.h"
 #include <ctype.h>
+#include <errno.h>
+#include <regex.h>
 #include "ox_pathfinder.h"
 
+extern int Quiet;
 extern char **environ;
 
 #define MYCP_SIZE 100
 static int Mychildren[MYCP_SIZE];
 static int Mycp = 0;
+static int Verbose_mywait = 0;
 static void mywait() {
   int status;
   int pid;
   int i,j;
   /* signal(SIGCHLD,SIG_IGN); */
   pid = wait(&status);
-  fprintf(stderr,"Child process %d is exiting.\n",pid);
+  if ((!Quiet) && (Verbose_mywait)) fprintf(stderr,"Child process %d is exiting.\n",pid);
   for (i=0; i<Mycp; i++) {
     if (Mychildren[i]  == pid) {
       for (j=i; j<Mycp-1; j++) {
@@ -84,6 +88,8 @@ static char *ext_generateUniqueFileName(char *s)
   return(NULL);
 }
 
+static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag);
+
 struct object Kextension(struct object obj)
 {
   char *key;
@@ -103,7 +109,6 @@ struct object Kextension(struct object obj)
 #endif
   extern void ctrlC();
   extern int SigIgn;
-  extern errno;
   extern int DebugCMO;
   extern int OXprintMessage;
   struct stat buf;
@@ -111,6 +116,8 @@ struct object Kextension(struct object obj)
   FILE *fp;
   void (*oldsig)();
   extern SecureMode;
+  extern char *UD_str;
+  extern int UD_attr;
 
   if (obj.tag != Sarray) errorKan1("%s\n","Kextension(): The argument must be an array.");
   size = getoaSize(obj);
@@ -144,10 +151,17 @@ struct object Kextension(struct object obj)
     obj1 = getoa(obj,1);
     if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattrs)  num] extension.");
     m = KopInteger(obj1);
-    if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))
-      errorKan1("%s\n","The number must be 0, 1 or 2.");
+	/* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
+	   errorKan1("%s\n","The number must be 0, 1 or 2.");*/
     putUserDictionary2((char *)NULL,0,0,m | SET_ATTR_FOR_ALL_WORDS,
                        CurrentContextp->userDictionary);
+  }else if (strcmp(key,"or_attrs")==0) {
+    if (size != 2) errorKan1("%s\n","[(or_attrs)  num] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attrs)  num] extension.");
+    m = KopInteger(obj1);
+    putUserDictionary2((char *)NULL,0,0,m | OR_ATTR_FOR_ALL_WORDS,
+                       CurrentContextp->userDictionary);
   }else if (strcmp(key,"keywords")==0) {
     if (size != 1) errorKan1("%s\n","[(keywords)] extension.");
     rob = showSystemDictionary(1);
@@ -204,6 +218,12 @@ struct object Kextension(struct object obj)
       putoa(obj3,0,KpoInteger((int) buf.st_size));
       putoa(rob,1,obj3); /* We have not yet read buf fully */
     }
+  }else if (strcmp(key,"gethostname")==0) {
+    abc = (char *)sGC_malloc(sizeof(char)*1024);
+    if (gethostname(abc,1023) < 0) {
+	  errorKan1("%s\n","hostname could not be obtained.");
+	}
+	rob = KpoString(abc);
   }else if (strcmp(key,"forkExec")==0) {
     if (size != 4) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension.");
     obj1 = getoa(obj,1);
@@ -314,10 +334,36 @@ struct object Kextension(struct object obj)
     if (obj1.tag != Sinteger) errorKan1("%s\n","[(chattr)  num symbol] extension.");
     if (obj2.tag != Sstring)  errorKan1("%s\n","[(chattr)  num symbol] extension.");
     m = KopInteger(obj1);
-    if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT))
-      errorKan1("%s\n","The number must be 0, 1 or 2.");
+	/* if (!( m == 0 || m == PROTECT || m == ABSOLUTE_PROTECT || m == ATTR_INFIX))
+	   errorKan1("%s\n","The number must be 0, 1 or 2.");*/
     putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
                        m,CurrentContextp->userDictionary);
+  }else if (strcmp(key,"or_attr")==0) {
+    if (size != 3) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    obj1 = getoa(obj,1);
+    obj2 = getoa(obj,2);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    if (obj2.tag != Sstring)  errorKan1("%s\n","[(or_attr)  num symbol] extension.");
+    m = KopInteger(obj1);
+    rob = KfindUserDictionary(obj2.lc.str);
+    if (rob.tag != NoObject.tag) {
+      if (strcmp(UD_str,obj2.lc.str) == 0) {
+        m |= UD_attr;
+      }else errorKan1("%s\n","or_attr: internal error.");
+    }
+    rob = KpoInteger(m);
+    putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
+                       m,CurrentContextp->userDictionary);
+  }else if (strcmp(key,"getattr")==0) {
+    if (size != 2) errorKan1("%s\n","[(getattr) symbol] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sstring)  errorKan1("%s\n","[(getattr) symbol] extension.");
+    rob = KfindUserDictionary(obj1.lc.str);
+	if (rob.tag != NoObject.tag) {
+	  if (strcmp(UD_str,obj1.lc.str) == 0) {
+		rob = KpoInteger(UD_attr);
+	  }else errorKan1("%s\n","getattr: internal error.");
+	}else rob = NullObject;
   }else if (strcmp(key,"getServerEnv")==0) {
     if (size != 2) errorKan1("%s\n","[(getServerEnv) serverName] extension.");
     obj1 = getoa(obj,1);
@@ -336,6 +382,29 @@ struct object Kextension(struct object obj)
         }
       }
     }
+  }else if (strcmp(key,"read")==0) {
+    if (size != 3) errorKan1("%s\n","[(read) fd size] extension.");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. fd must be an integer.");
+    obj2 = getoa(obj,2);
+    if (obj2.tag != Sinteger) errorKan1("%s\n","[(read) fd size] extension. size must be an integer.");
+    {
+      int total, n, fd;
+      char *s; char *s0;
+      fd = KopInteger(obj1);
+      total = KopInteger(obj2);
+      if (total <= 0) errorKan1("%s\n","[(read) ...]; negative size has not yet been implemented.");
+      /* Return a string. todo: implement SbyteArray case. */
+      s0 = s = (char *) sGC_malloc(total+1);
+      if (s0 == NULL) errorKan1("%s\n","[(read) ...]; no more memory."); 
+      while (total >0) {
+        n = read(fd, s, total);
+        if (n < 0) { perror("read"); errorKan1("%s\n","[(read) ...]; read error.");}
+        s[n] = 0;
+        total -= n;  s = &(s[n]);
+      }
+      rob = KpoString(s0);
+    }
   }else if (strcmp(key,"regionMatches")==0) {
     if (size != 3) errorKan1("%s\n","[(regionMatches) str strArray] extension.");
     obj1 = getoa(obj,1);
@@ -363,6 +432,15 @@ struct object Kextension(struct object obj)
     obj1 = getoa(obj,1);
 	obj2 = getoa(obj,2);
     rob = KooPower(obj1,obj2);
+  }else if (strcmp(key,"Krest")==0) {
+    if (size != 2) errorKan1("%s\n","[(Krest) a] extension b");
+    obj1 = getoa(obj,1);
+    rob = Krest(obj1);
+  }else if (strcmp(key,"Kjoin")==0) {
+    if (size != 3) errorKan1("%s\n","[(Kjoin) a b] extension c");
+    obj1 = getoa(obj,1);
+	obj2 = getoa(obj,2);
+    rob = Kjoin(obj1,obj2);
   }else if (strcmp(key,"ostype")==0) {
     rob = newObjectArray(1);
     /* Hard encode the OS type. */
@@ -371,11 +449,37 @@ struct object Kextension(struct object obj)
 #else
     putoa(rob,0,KpoString("unix"));
 #endif
+  }else if (strcmp(key,"traceClearStack")==0) {
+    traceClearStack();
+    rob = NullObject;
+  }else if (strcmp(key,"traceShowStack")==0) {
+    char *ssst;
+    ssst = traceShowStack();
+    if (ssst != NULL) {
+      rob = KpoString(ssst);
+    }else{
+      rob = NullObject;
+    }
+  }else if (strcmp(key,"regexec")==0) {
+    if ((size != 3) && (size != 4)) errorKan1("%s\n","[(regexec) reg strArray flag(optional)] extension b");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sdollar) errorKan1("%s\n","regexec, the first argument should be a string (regular expression).");
+    obj2 = getoa(obj,2); 
+    if (obj2.tag != Sarray) errorKan1("%s\n","regexec, the second argument should be an array of a string.");
+    if (size == 3) obj3 = newObjectArray(0);
+    else obj3 = getoa(obj,3);
+    rob = oregexec(obj1,obj2,obj3);
+  }else if (strcmp(key,"unlink")==0) {
+    if (size != 2) errorKan1("%s\n","[(unlink) filename] extension b");
+    obj1 = getoa(obj,1);
+    if (obj1.tag != Sdollar) errorKan1("%s\n","unlink, the first argument should be a string (filename).");
+    rob = KpoInteger(oxDeleteFile(KopString(obj1)));
   }
 #include "plugin.hh"
 #include "Kclass/tree.hh"
   else{
-    errorKan1("%s\n","Unknown tag for extension.");
+	fprintf(stderr,"key=%s; ",key);
+    errorKan1("%s\n","Unknown key for extension.");
   }
 
 
@@ -417,3 +521,80 @@ struct object KregionMatches(struct object sobj, struc
   return rob;
 }
 
+static struct object oregexec(struct object oregex,struct object ostrArray,struct object oflag) {
+  struct object rob;
+  struct object ob;
+  int n,i,j,m,keyn,cflag,eflag,er;
+  char *regex;
+  regex_t preg;
+  char *s;
+  char *mbuf; int mbufSize;
+#define REGMATCH_SIZE 100
+  regmatch_t pmatch[100]; size_t nmatch;
+  int size;
+
+  nmatch = (size_t) REGMATCH_SIZE;
+  rob = newObjectArray(0);
+  mbufSize = 1024;
+
+  if (oregex.tag != Sdollar) return rob;
+  if (ostrArray.tag != Sarray) return rob;
+  n = getoaSize(ostrArray);
+  for (i=0; i<n; i++) {
+    if (getoa(ostrArray,i).tag != Sdollar) { return rob; }
+  }
+  if (oflag.tag != Sarray) errorKan1("%s\n","oregexec: oflag should be an array of integers.");
+  cflag = eflag = 0;
+  oflag = Kto_int32(oflag);
+  for (i=0; i<getoaSize(oflag); i++) {
+    ob = getoa(oflag,i);
+    if (ob.tag != Sinteger) errorKan1("%s\n","oregexec: oflag is not an array of integers.");
+    if (i == 0) cflag = KopInteger(ob);
+    if (i == 1) eflag = KopInteger(ob);
+  }
+
+  regex = KopString(oregex);
+  if (er=regcomp(&preg,regex,cflag)) {
+    mbuf = (char *) sGC_malloc(mbufSize);
+    if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+    regerror(er,&preg,mbuf,mbufSize-1);
+    errorKan1("regcomp error: %s\n",mbuf);
+  }
+
+  size = 0; /* We should use list instead of counting the size. */
+  for (i=0; i<n; i++) {
+    s = KopString(getoa(ostrArray,i));
+    er=regexec(&preg,s,nmatch,pmatch,eflag);
+    if ((er != 0) && (er != REG_NOMATCH)) { 
+      mbuf = (char *) sGC_malloc(mbufSize);
+      if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+      regerror(er,&preg,mbuf,mbufSize-1);
+      errorKan1("regcomp error: %s\n",mbuf);
+    }
+    if (er == 0) size++;
+  }
+
+  rob = newObjectArray(size);
+  size = 0;
+  for (i=0; i<n; i++) {
+    s = KopString(getoa(ostrArray,i));
+    er=regexec(&preg,s,nmatch,pmatch,eflag);
+    if ((er != 0) && (er != REG_NOMATCH)) { 
+      mbuf = (char *) sGC_malloc(mbufSize);
+      if (mbuf == NULL) errorKan1("%s\n","No more memory.");
+      regerror(er,&preg,mbuf,mbufSize-1);
+      errorKan1("regcomp error: %s\n",mbuf);
+    }
+    if (er == 0) {
+      ob = newObjectArray(3);
+      putoa(ob,0,KpoString(s));
+      /* temporary */
+      putoa(ob,1,KpoInteger((int) (pmatch[0].rm_so)));
+      putoa(ob,2,KpoInteger((int) (pmatch[0].rm_eo)));
+      putoa(rob,size,ob);
+      size++;
+    }
+  }
+  regfree(&preg);
+  return rob;
+}