From 7409b050bee226fb7bb0b89a10d9c206d8797d70 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Wed, 23 Jul 2008 19:40:01 -0400
Subject: More fixes to restore parsing capability.

---
 textual.cc | 36 +++++++++++++++++++++---------------
 valexpr.h  |  2 +-
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/textual.cc b/textual.cc
index 2d3bff0a..f89da45f 100644
--- a/textual.cc
+++ b/textual.cc
@@ -62,21 +62,23 @@ namespace {
     }
 #endif
 
-    if (! expr::compute_amount(expr, amount, xact))
-      throw new parse_error("Amount expression failed to compute");
+    if (expr) {
+      if (! expr::compute_amount(expr, amount, xact))
+	throw new parse_error("Amount expression failed to compute");
 
 #if 0
-    if (expr->kind == expr::node_t::VALUE) {
-      expr = NULL;
-    } else {
-      DEBUG_IF("ledger.textual.parse") {
-	std::cout << "Value expression tree:" << std::endl;
-	ledger::dump_value_expr(std::cout, expr.get());
+      if (expr->kind == expr::node_t::VALUE) {
+	expr = NULL;
+      } else {
+	DEBUG_IF("ledger.textual.parse") {
+	  std::cout << "Value expression tree:" << std::endl;
+	  ledger::dump_value_expr(std::cout, expr.get());
+	}
       }
-    }
 #else
-    expr = value_expr();
+      expr = value_expr();
 #endif
+    }
 
     DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
 	  "The transaction amount is " << xact->amount);
@@ -178,12 +180,16 @@ transaction_t * parse_transaction(char * line, account_t * account,
 			  EXPR_PARSE_NO_REDUCE);
       saw_amount = true;
 
-      xact->amount.reduce();
-      DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
-	    "Reduced amount is " << xact->amount);
+      if (! xact->amount.is_null()) {
+	xact->amount.reduce();
+	DEBUG("ledger.textual.parse", "line " << linenum << ": " <<
+	      "Reduced amount is " << xact->amount);
+      }
 
-      unsigned long end = (long)in.tellg();
-      xact->amount_expr.expr_str = string(line, beg, end - beg);
+      if (xact->amount_expr) {
+	unsigned long end = (long)in.tellg();
+	xact->amount_expr.expr_str = string(line, beg, end - beg);
+      }
     }
     catch (error * err) {
       err_desc = "While parsing transaction amount:";
diff --git a/valexpr.h b/valexpr.h
index 45f44b2e..c5796b88 100644
--- a/valexpr.h
+++ b/valexpr.h
@@ -794,7 +794,7 @@ public:
   }
 
   operator bool() const throw() {
-    return ptr != NULL;
+    return ptr.get() != NULL;
   }
   operator string() const throw() {
     return expr_str;
-- 
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