X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=x2p%2Fwalk.c;h=de1263fc16bfb4b02eea79389e81ce191e33f777;hb=9f10b7978c0f0158c4689058d5599a8d2c5e52da;hp=4d5f1d3a5e636645bb4361485965f20bdb1353e3;hpb=3f939f220e50adb6f28f2dd14f06461c7cebfe14;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/x2p/walk.c b/x2p/walk.c
index 4d5f1d3..de1263f 100644
--- a/x2p/walk.c
+++ b/x2p/walk.c
@@ -1,11 +1,10 @@
-/* $RCSfile: walk.c,v $$Revision: 4.1 $$Date: 92/08/07 18:29:31 $
+/*    walk.c
  *
- *    Copyright (c) 1991-2001, Larry Wall
+ *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1997, 1998, 1999,
+ *    2000, 2001, 2002, 2005 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
- *
- * $Log:	walk.c,v $
  */
 
 #include "EXTERN.h"
@@ -34,15 +33,14 @@ static void tab ( STR *str, int lvl );
 
 int prewalk ( int numit, int level, int node, int *numericptr );
 STR * walk ( int useval, int level, int node, int *numericptr, int minprec );
-
+#ifdef NETWARE
+char *savestr(char *str);
+char *cpytill(register char *to, register char *from, register int delim);
+char *instr(char *big, char *little);
+#endif
 
 STR *
 walk(int useval, int level, register int node, int *numericptr, int minprec)
-           
-          
-                  
-                
-            			/* minimum precedence without parens */
 {
     register int len;
     register STR *str;
@@ -52,7 +50,7 @@ walk(int useval, int level, register int node, int *numericptr, int minprec)
     STR *tmp2str;
     STR *tmp3str;
     char *t;
-    char *d, *s = 0;
+    char *d, *s;
     int numarg;
     int numeric = FALSE;
     STR *fstr;
@@ -254,7 +252,7 @@ sub Pick {\n\
 	}
 	*d = '\0';
 	for (d=tokenbuf; *d; d++)
-	    *d += 128;
+           *d += (char)128;
 	str_cat(str,tokenbuf);
 	str_free(tmpstr);
 	str_cat(str,"/");
@@ -655,13 +653,11 @@ sub Pick {\n\
 	str_cat(str,", ");
 	str_scat(str,fstr=walk(1,level,ops[node+2].ival,&numarg,P_COMMA+1));
 	str_free(fstr);
-	str_cat(str,", ");
 	if (len == 3) {
+	    str_cat(str,", ");
 	    str_scat(str,fstr=walk(1,level,ops[node+3].ival,&numarg,P_COMMA+1));
 	    str_free(fstr);
 	}
-	else
-	    str_cat(str,"999999");
 	str_cat(str,")");
 	break;
     case OSTRING:
@@ -670,7 +666,7 @@ sub Pick {\n\
 	break;
     case OSPLIT:
 	str = str_new(0);
-	limit = ", 9999)";
+	limit = ", -1)";
 	numeric = 1;
 	tmpstr = walk(1,level,ops[node+2].ival,&numarg,P_MIN);
 	if (useval)
@@ -822,11 +818,8 @@ sub Pick {\n\
 	str_cat(str,")");
 	break;
     case OGSUB:
-    case OSUB:
-	if (type == OGSUB)
-	    s = "g";
-	else
-	    s = "";
+    case OSUB: {
+	int gsub = type == OGSUB ? 1 : 0;
 	str = str_new(0);
 	tmpstr = str_new(0);
 	i = 0;
@@ -849,13 +842,14 @@ sub Pick {\n\
 	    tmp2str=walk(1,level,ops[ops[node+2].ival+1].ival,&numarg,P_MIN);
 	    for (t = tmp2str->str_ptr, d=tokenbuf; *t; d++,t++) {
 		if (*t == '&')
-		    *d++ = '$' + 128;
+                   *d++ = '$' + (char)128;
 		else if (*t == '$')
-		    *d++ = '\\' + 128;
+                   *d++ = '\\' + (char)128;
 		*d = *t + 128;
 	    }
 	    *d = '\0';
 	    str_set(tmp2str,tokenbuf);
+	    s = (char *) (gsub ? "/g" : "/");
 	}
 	else {
 	    tmp2str=walk(1,level,ops[node+2].ival,&numarg,P_MIN);
@@ -863,9 +857,10 @@ sub Pick {\n\
 	    str_scat(tmp3str,tmp2str);
 	    str_cat(tmp3str,").'\"') =~ s/&/\\$&/g, ");
 	    str_set(tmp2str,"eval $s_");
-	    s = (char*)(*s == 'g' ? "ge" : "e");
+	    s = (char *) (gsub ? "/ge" : "/e");
 	    i++;
 	}
+	str_cat(tmp2str,s);
 	type = ops[ops[node+1].ival].ival;
 	len = type >> 8;
 	type &= 255;
@@ -877,8 +872,6 @@ sub Pick {\n\
 	    str_scat(str,tmpstr);
 	    str_scat(str,fstr);
 	    str_scat(str,tmp2str);
-	    str_cat(str,"/");
-	    str_cat(str,s);
 	}
 	else if ((type == OFLD && !split_to_array) || (type == OVAR && len == 1)) {
 	    if (useval && i)
@@ -889,8 +882,6 @@ sub Pick {\n\
 	    str_scat(str,fstr);
 	    str_cat(str,"/");
 	    str_scat(str,tmp2str);
-	    str_cat(str,"/");
-	    str_cat(str,s);
 	}
 	else {
 	    i++;
@@ -903,8 +894,6 @@ sub Pick {\n\
 	    str_scat(str,tmpstr);
 	    str_cat(str,"/$s/");
 	    str_scat(str,tmp2str);
-	    str_cat(str,"/");
-	    str_cat(str,s);
 	}
 	if (useval && i)
 	    str_cat(str,")");
@@ -913,7 +902,7 @@ sub Pick {\n\
 	str_free(tmp2str);
 	str_free(tmp3str);
 	numeric = 1;
-	break;
+	break; }
     case ONUM:
 	str = walk(1,level,ops[node+1].ival,&numarg,P_MIN);
 	numeric = 1;
@@ -931,7 +920,7 @@ sub Pick {\n\
 		case '\\': case '"': case 'n': case 't': case '$':
 		    break;
 		default:	/* hide this from perl */
-		    *d++ = '\\' + 128;
+                   *d++ = '\\' + (char)128;
 		}
 	    }
 	    *d = *t + 128;
@@ -1008,7 +997,7 @@ sub Pick {\n\
 		    strcpy(tokenbuf,"]");
 		else
 		    strcpy(tokenbuf,"}");
-		*tokenbuf += 128;
+               *tokenbuf += (char)128;
 		str_cat(str,tokenbuf);
 	    }
 	}
@@ -1060,7 +1049,7 @@ sub Pick {\n\
 	str_set(str,";");
 	tmpstr = walk(0,level,ops[node+1].ival,&numarg,P_MIN);
 	for (s = tmpstr->str_ptr; *s && *s != '\n'; s++)
-	    *s += 128;
+           *s += (char)128;
 	str_scat(str,tmpstr);
 	str_free(tmpstr);
 	tab(str,level);
@@ -1069,7 +1058,7 @@ sub Pick {\n\
 	str = str_new(0);
 	tmpstr = walk(0,level,ops[node+1].ival,&numarg,P_MIN);
 	for (s = tmpstr->str_ptr; *s && *s != '\n'; s++)
-	    *s += 128;
+           *s += (char)128;
 	str_scat(str,tmpstr);
 	str_free(tmpstr);
 	tab(str,level);
@@ -1619,13 +1608,13 @@ emit_split(register STR *str, int level)
 	str_cat(str,tokenbuf);
     }
     if (const_FS) {
-	sprintf(tokenbuf," = split(/[%c\\n]/, $_, 9999);\n",const_FS);
+	sprintf(tokenbuf," = split(/[%c\\n]/, $_, -1);\n",const_FS);
 	str_cat(str,tokenbuf);
     }
     else if (saw_FS)
-	str_cat(str," = split($FS, $_, 9999);\n");
+	str_cat(str," = split($FS, $_, -1);\n");
     else
-	str_cat(str," = split(' ', $_, 9999);\n");
+	str_cat(str," = split(' ', $_, -1);\n");
     tab(str,level);
 }