* eval.c (rb_call0): must not clear ruby_current_node, or

  backtrace cannot be genetated.

* intern.h (ruby_yyparse): rather than yyparse().

* parse.y (yylex): nextc() returns -1 at end of input, not 0.

* parse.y (newline_node): reduce deplicated newline node.

* parse.y (literal_concat): get rid of warning.

* parse.y (new_evstr): fixed junk code.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2884 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

5 files changed, 35 insertions, 26 deletions

diff --git a/ChangeLog b/ChangeLog
index 8e7830bf89..816a14176f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+Mon Sep 23 23:22:43 2002  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* eval.c (rb_call0): must not clear ruby_current_node, or
+	  backtrace cannot be genetated.
+
+	* intern.h (ruby_yyparse): rather than yyparse().
+
+	* parse.y (yylex): nextc() returns -1 at end of input, not 0.
+
+	* parse.y (newline_node): reduce deplicated newline node.
+
+	* parse.y (literal_concat): get rid of warning.
+
+	* parse.y (new_evstr): fixed junk code.
+
 Mon Sep 23 19:57:52 2002  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 	* configure.in (RUBY_MINGW32): new macro. check for the MinGW
diff --git a/eval.c b/eval.c
index 1a9b77c541..fad145124b 100644
--- a/eval.c
+++ b/eval.c
@@ -4501,21 +4501,18 @@ rb_call0(klass, recv, id, oid, argc, argv, body, nosuper)
 	    }
 	    if (trace_func) {
 		int state;
-		NODE *volatile node = ruby_current_node;
 
 		call_trace_func("c-call", ruby_current_node, recv, id, klass);
-		ruby_current_node = 0;
 		PUSH_TAG(PROT_FUNC);
 		if ((state = EXEC_TAG()) == 0) {
 		    result = call_cfunc(body->nd_cfnc, recv, len, argc, argv);
 		}
 		POP_TAG();
-		ruby_current_node = node;
+		ruby_current_node = ruby_frame->node;
 		call_trace_func("c-return", ruby_current_node, recv, id, klass);
 		if (state) JUMP_TAG(state);
 	    }
 	    else {
-		ruby_current_node = 0;
 		result = call_cfunc(body->nd_cfnc, recv, len, argc, argv);
 	    }
 	}
diff --git a/intern.h b/intern.h
index 84a92b3db5..0543dc5de9 100644
--- a/intern.h
+++ b/intern.h
@@ -287,7 +287,7 @@ double rb_str_to_dbl _((VALUE, int));
 /* parse.y */
 EXTERN int   ruby_sourceline;
 EXTERN char *ruby_sourcefile;
-int yyparse _((void));
+int ruby_yyparse _((void));
 ID rb_id_attrset _((ID));
 void rb_parser_append_print _((void));
 void rb_parser_while_loop _((int, int));
diff --git a/parse.y b/parse.y
index d38e5e7d0c..4c2655492c 100644
--- a/parse.y
+++ b/parse.y
@@ -3555,7 +3555,7 @@ yylex()
 			    if (!ISXDIGIT(c)) break;
 			    nondigit = 0;
 			    tokadd(c);
-			} while (c = nextc());
+			} while ((c = nextc()) != -1);
 		    }
 		    pushback(c);
 		    tokfix();
@@ -3579,7 +3579,7 @@ yylex()
 			    if (c != '0' && c != '1') break;
 			    nondigit = 0;
 			    tokadd(c);
-			} while (c = nextc());
+			} while ((c = nextc()) != -1);
 		    }
 		    pushback(c);
 		    tokfix();
@@ -3603,7 +3603,7 @@ yylex()
 			    if (!ISDIGIT(c)) break;
 			    nondigit = 0;
 			    tokadd(c);
-			} while (c = nextc());
+			} while ((c = nextc()) != -1);
 		    }
 		    pushback(c);
 		    tokfix();
@@ -3637,7 +3637,7 @@ yylex()
 			if (c < '0' || c > '7') break;
 			nondigit = 0;
 			tokadd(c);
-		    } while (c = nextc());
+		    } while ((c = nextc()) != -1);
 		    if (toklen() > start) {
 			pushback(c);
 			tokfix();
@@ -4147,7 +4147,7 @@ yylex()
 	    else {
 		if (lex_state == EXPR_FNAME) {
 		    if ((c = nextc()) == '=' && !peek('~') && !peek('>') &&
-			(!peek('=') || lex_p + 1 < lex_pend && lex_p[1] == '>')) {
+			(!peek('=') || (lex_p + 1 < lex_pend && lex_p[1] == '>'))) {
 			result = tIDENTIFIER;
 			tokadd(c);
 		    }
@@ -4258,6 +4258,7 @@ newline_node(node)
 {
     NODE *nl = 0;
     if (node) {
+	if (nd_type(node) == NODE_NEWLINE) return node;
         nl = NEW_NEWLINE(node);
         fixpos(nl, node);
         nl->nd_nth = nd_line(node);
@@ -4397,7 +4398,7 @@ literal_concat(head, tail)
 	else {
 	    list_append(head, tail);
 	}
-	return head;
+	break;
 
       case NODE_DSTR:
 	if (htype == NODE_STR) {
@@ -4411,39 +4412,35 @@ literal_concat(head, tail)
 	    tail->nd_head = NEW_STR(tail->nd_lit);
 	    list_concat(head, tail);
 	}
-	return head;
+	break;
 
       case NODE_EVSTR:
 	if (htype == NODE_STR) {
 	    nd_set_type(head, NODE_DSTR);
 	}
 	list_append(head, tail);
-	return head;
+	break;
     }
+    return head;
 }
 
 static NODE *
 new_evstr(node)
     NODE *node;
 {
-    NODE *n;
+    NODE *head = node;
 
+  again:
     if (node) {
 	switch (nd_type(node)) {
 	  case NODE_STR: case NODE_DSTR: case NODE_EVSTR:
 	    return node;
-	  case NODE_BLOCK:
-	    for (n = node; n->nd_next; n = n->nd_next) {
-		NODE *h = n->nd_head;
-		enum node_type t;
-		if (!h) continue;
-		if (t != NODE_STR && t != NODE_LIT) goto evstr;
-	    }
-	    return n->nd_head;
+	  case NODE_NEWLINE:
+	    node = node->nd_next;
+	    goto again;
 	}
     }
-  evstr:
-    return NEW_EVSTR(node);
+    return NEW_EVSTR(head);
 }
 
 static NODE *
diff --git a/version.h b/version.h
index 8ab88359d0..af636a5fbc 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
 #define RUBY_VERSION "1.7.3"
-#define RUBY_RELEASE_DATE "2002-09-22"
+#define RUBY_RELEASE_DATE "2002-09-23"
 #define RUBY_VERSION_CODE 173
-#define RUBY_RELEASE_CODE 20020922
+#define RUBY_RELEASE_CODE 20020923