dtdocbook: merge dtinfogen into dtdocbook.

cde/programs/dtdocbook/infolib/OL_DataExpr.yy

@@ -0,0 +1,103 @@
+/* $XConsortium: OL_DataExpr.y /main/2 1996/11/11 11:51:54 drk $ */
+%{
+#include <stdio.h>
+#include "ExprList.h"
+#include "Expression.h"
+#include "ContentType.h"
+
+extern int yylex();
+extern void yyerror( const char *str );
+
+extern ContentType *CurrentContentPtr;
+
+%}
+
+%union {
+  int        name;
+  char       *string;
+  OL_Expression *eptr;
+}
+
+%token <name>      Reference
+%token <name>      Id
+%token <string>    Literal
+%token Content
+%token Concat
+%token Attr
+%token FirstOf
+
+%type  <eptr>     Expr
+%type  <eptr>     ExprList
+
+%start ValList
+
+%%
+
+ValList : ExprList
+              {
+		CurrentContentPtr->init($1);
+	      }
+          ;
+
+ExprList  : Expr
+              {
+		$$ = $1;
+	      }
+           | Expr ',' ExprList
+              {
+		$1->next = $3;
+		$$ = $1;
+	      }
+           ;
+
+Expr : Id
+         {
+	   OL_Expression *expr = new OL_Expression( GENERIC_ID, $1);
+	   $$ = expr;
+	 }
+
+     | Content
+         {
+	   OL_Expression *expr = new OL_Expression( CONTENT );
+	   $$ = expr;
+	 }
+
+     | Concat '(' ExprList ')'
+         {
+	   ExprList   *elist = new ExprList( $3 );
+	   OL_Expression *expr = new OL_Expression( CONCAT, -1, elist);
+	   $$ = expr;
+	 }
+     | Attr '(' Id ')'
+         {
+	   OL_Expression *expr = new OL_Expression( REFERENCE, $3);
+	   $$ = expr;
+	 }
+     | FirstOf '(' ExprList ')'
+         {
+	   ExprList *elist = new ExprList ( $3 );
+	   OL_Expression *expr = new OL_Expression( FIRSTOF, -1, elist );
+	   $$ = expr;
+	 }
+
+     | Literal
+         {
+	   OL_Expression *expr = new OL_Expression( LITERAL, -1, $1 );
+	   $$ = expr;
+	 }
+
+     | Reference
+         {
+	   OL_Expression *expr = new OL_Expression( REFERENCE, $1 );
+	   $$ = expr;
+	 }
+  
+     ;
+
+
+%%	
+
+
+  
+
+