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@@ -62,21 +62,23 @@ namespace {
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     }
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 #endif
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-    if (! expr::compute_amount(expr, amount, xact))
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-      throw new parse_error("Amount expression failed to compute");
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+    if (expr) {
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+      if (! expr::compute_amount(expr, amount, xact))
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+	throw new parse_error("Amount expression failed to compute");
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 #if 0
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-    if (expr->kind == expr::node_t::VALUE) {
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-      expr = NULL;
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-    } else {
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-      DEBUG_IF("ledger.textual.parse") {
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-	std::cout << "Value expression tree:" << std::endl;
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-	ledger::dump_value_expr(std::cout, expr.get());
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+      if (expr->kind == expr::node_t::VALUE) {
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+	expr = NULL;
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+      } else {
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+	DEBUG_IF("ledger.textual.parse") {
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+	  std::cout << "Value expression tree:" << std::endl;
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+	  ledger::dump_value_expr(std::cout, expr.get());
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+	}
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       }
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-    }
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 #else
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-    expr = value_expr();
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+      expr = value_expr();
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 #endif
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+    }
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     DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
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     "The transaction amount is " << xact->amount);
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@@ -178,12 +180,16 @@ transaction_t * parse_transaction(char * line, account_t * account,
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         EXPR_PARSE_NO_REDUCE);
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       saw_amount = true;
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-      xact->amount.reduce();
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-      DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
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-	    "Reduced amount is " << xact->amount);
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+      if (! xact->amount.is_null()) {
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+	xact->amount.reduce();
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+	DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
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+	      "Reduced amount is " << xact->amount);
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+      }
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-      unsigned long end = (long)in.tellg();
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-      xact->amount_expr.expr_str = string(line, beg, end - beg);
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+      if (xact->amount_expr) {
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+	unsigned long end = (long)in.tellg();
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+	xact->amount_expr.expr_str = string(line, beg, end - beg);
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+      }
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     }
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     catch (error * err) {
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       err_desc = "While parsing transaction amount:";

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@@ -794,7 +794,7 @@ public:
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   }
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   operator bool() const throw() {
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-    return ptr != NULL;
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+    return ptr.get() != NULL;
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   }
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   operator string() const throw() {
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     return expr_str;