bug fix, broken vdb() vph()

ChangeLog

@@ -1,3 +1,29 @@
+2012-01-08  Robert Larice
+ * src/frontend/parse-bison.y :
+  bug fix, broken vdb() vph()
+
+  see
+    plot vdb(1) vr(2) vi(3) vm(4) vp(5) no works - ID: 3470791
+    http://sourceforge.net/tracker/?func=detail&atid=423915&group_id=38962&aid=3470791
+
+  revert:
+     2011-08-20  Robert Larice
+       the i() and v() function application have special semantics
+
+  which was meant to fix a problem, when loading a rawfile and trying
+    to access a vector with name "i(vdd)"
+  yet broke the internal user defined functions
+    vdb(x)  -->   db(v(x))
+    ...
+
+  in short
+     load file
+     plot i(vdd)
+  won't work. but
+     load file
+     plot "i(vdd)"
+  will work
+
 2012-01-08  Robert Larice
  * src/frontend/numparam/xpressn.c ,
  * src/maths/poly/polyfit.c :

src/frontend/parse-bison.y

@@ -78,7 +78,7 @@
  *   manifests my expectation, and will issue a `warning' when not met
  */
 
-%expect 3
+%expect 2
 
 %token <num>  TOK_NUM
 %token <str>  TOK_STR
@@ -147,18 +147,6 @@ exp:
   | '-' exp  %prec NEG                { $$ = mkunode(PT_OP_UMINUS, $2); }
   | '~' exp                           { $$ = mkunode(PT_OP_NOT, $2); }
 
-  | TOK_STR '(' TOK_STR ')'           {
-      char c = tolower($1[0]);
-      if((c == 'i' || c == 'v') && $1[1] == '\0') {
-          char buf[BSIZE_SP];
-          sprintf(buf, "%s(%s)", $1, $3);
-          $$ = mksnode(buf);
-      } else {
-          $$ = mkfnode($1, mksnode($3));
-      }
-      if(!$$) YYABORT;
-  }
-
   | TOK_STR '(' exp ')'               { $$ = mkfnode($1, $3); if(!$$) YYABORT; }
 
   | exp '=' exp                       { $$ = mkbnode(PT_OP_EQ, $1, $3); }