parse.y: should allow newline after `...`.

include/mruby/compile.h

@@ -56,7 +56,7 @@ enum mrb_lex_state_enum {
   EXPR_ENDFN,                 /* ditto, and unbound braces. */
   EXPR_ARG,                   /* newline significant, +/- is an operator. */
   EXPR_CMDARG,                /* newline significant, +/- is an operator. */
-  EXPR_MID,                   /* newline significant, +/- is an operator. */
+  EXPR_MID,                   /* newline significant, +/- is a sign. */
   EXPR_FNAME,                 /* ignore newline, no reserved words. */
   EXPR_DOT,                   /* right after '.' or '::', no reserved words. */
   EXPR_CLASS,                 /* immediate after 'class', no here document. */

mrbgems/mruby-compiler/core/parse.y

@@ -5693,7 +5693,7 @@ parser_yylex(parser_state *p)
   case '.':
     {
       int is_beg = IS_BEG();
-      p->lstate = EXPR_BEG;
+      p->lstate = EXPR_MID;
       if ((c = nextc(p)) == '.') {
         if ((c = nextc(p)) == '.') {
           return is_beg ? tBDOT3 : tDOT3;
@@ -5702,6 +5702,7 @@ parser_yylex(parser_state *p)
         return is_beg ? tBDOT2 : tDOT2;
       }
       pushback(p, c);
+      p->lstate = EXPR_BEG;
       if (c >= 0 && ISDIGIT(c)) {
         yyerror(p, "no .<digit> floating literal anymore; put 0 before dot");
       }

mrbgems/mruby-compiler/core/y.tab.c

@@ -11916,7 +11916,7 @@ parser_yylex(parser_state *p)
   case '.':
     {
       int is_beg = IS_BEG();
-      p->lstate = EXPR_BEG;
+      p->lstate = EXPR_MID;
       if ((c = nextc(p)) == '.') {
         if ((c = nextc(p)) == '.') {
           return is_beg ? tBDOT3 : tDOT3;
@@ -11925,6 +11925,7 @@ parser_yylex(parser_state *p)
         return is_beg ? tBDOT2 : tDOT2;
       }
       pushback(p, c);
+      p->lstate = EXPR_BEG;
       if (c >= 0 && ISDIGIT(c)) {
         yyerror(p, "no .<digit> floating literal anymore; put 0 before dot");
       }