npo-ledger-cli/rounding/precision.patch

From fbc6213a8b06829f8c891acea6c3f550759634d9 Mon Sep 17 00:00:00 2001
From: tripun <tripun@gmail.com>
Date: Thu, 19 Jun 2014 22:08:19 +0530
Subject: [PATCH 1/2] added sub directive precision

---
 src/textual.cc | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/textual.cc b/src/textual.cc
index 8f37a56..bbae04e 100644
--- a/src/textual.cc
+++ b/src/textual.cc
@@ -163,6 +163,7 @@ namespace {
     void commodity_format_directive(commodity_t& comm, string format);
     void commodity_nomarket_directive(commodity_t& comm);
     void commodity_default_directive(commodity_t& comm);
+    void commodity_precision_directive(commodity_t& comm,string precise);
 
     void default_commodity_directive(char * line);
 
@@ -1096,6 +1097,8 @@ void instance_t::commodity_directive(char * line)
         commodity_default_directive(*commodity);
       else if (keyword == "note")
         commodity->set_note(string(b));
+      else if (keyword == "precision")
+        commodity_precision_directive(*commodity,b);
     }
   }
 }
@@ -1130,7 +1133,12 @@ void instance_t::commodity_default_directive(commodity_t& comm)
 {
   commodity_pool_t::current_pool->default_commodity = &comm;
 }
-
+void instance_t::commodity_precision_directive(commodity_t& comm,string precise)
+{
+  trim(precise);
+  uint8_t _precision_level=boost::lexical_cast<uint8_t>(precise);
+  DEBUG("option.names","precision directive called ");
+}
 void instance_t::tag_directive(char * line)
 {
   char * p = skip_ws(line);
-- 
1.8.3.2


From 3aec85e790120661bd906a235b16abbb41fecf18 Mon Sep 17 00:00:00 2001
From: tripun <tripun@gmail.com>
Date: Fri, 27 Jun 2014 17:43:11 +0530
Subject: [PATCH 2/2] added precision feature

---
 src/amount.cc   |  9 ++++++---
 src/commodity.h | 11 ++++++++++-
 src/textual.cc  |  5 +++--
 3 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/src/amount.cc b/src/amount.cc
index 7bf4dfc..7581a5d 100644
--- a/src/amount.cc
+++ b/src/amount.cc
@@ -487,7 +487,6 @@ amount_t& amount_t::operator-=(const amount_t& amt)
 amount_t& amount_t::multiply(const amount_t& amt, bool ignore_commodity)
 {
   VERIFY(amt.valid());
-
   if (! quantity || ! amt.quantity) {
     if (quantity)
       throw_(amount_error, _("Cannot multiply an amount by an uninitialized amount"));
@@ -511,7 +510,6 @@ amount_t& amount_t::multiply(const amount_t& amt, bool ignore_commodity)
     if (quantity->prec > comm_prec + extend_by_digits)
       quantity->prec = static_cast<precision_t>(comm_prec + extend_by_digits);
   }
-
   return *this;
 }
 
@@ -595,7 +593,6 @@ amount_t::precision_t amount_t::display_precision() const
            _("Cannot determine display precision of an uninitialized amount"));
 
   commodity_t& comm(commodity());
-
   if (comm && ! keep_precision())
     return comm.precision();
   else
@@ -628,6 +625,12 @@ void amount_t::in_place_round()
   else if (! keep_precision())
     return;
 
+   if(this->has_commodity())
+   {
+   commodity_t &comm=this->commodity();
+   if(comm.has_flags(COMMODITY_SET_CUSTOM_PRECISION))
+        in_place_roundto(comm.custom_precision());
+   }
   _dup();
   set_keep_precision(false);
 }
diff --git a/src/commodity.h b/src/commodity.h
index 80945fe..0e8e430 100644
--- a/src/commodity.h
+++ b/src/commodity.h
@@ -108,10 +108,13 @@ protected:
 #define COMMODITY_SAW_ANN_PRICE_FLOAT    0x400
 #define COMMODITY_SAW_ANN_PRICE_FIXATED  0x800
 #define COMMODITY_STYLE_TIME_COLON       0x1000
+#define COMMODITY_SET_CUSTOM_PRECISION   0X2000
+
 
     string                symbol;
     optional<std::size_t> graph_index;
     amount_t::precision_t precision;
+    int_least16_t custom_precision;
     optional<string>      name;
     optional<string>      note;
     optional<amount_t>    smaller;
@@ -132,7 +135,7 @@ protected:
         (commodity_t::decimal_comma_by_default ?
          static_cast<uint_least16_t>(COMMODITY_STYLE_DECIMAL_COMMA) :
          static_cast<uint_least16_t>(COMMODITY_STYLE_DEFAULTS)),
-        symbol(_symbol), precision(0) {
+        symbol(_symbol), precision(0),custom_precision(0) {
       TRACE_CTOR(commodity_t::base_t, "const string&");
     }
     virtual ~base_t() {
@@ -247,9 +250,15 @@ public:
   amount_t::precision_t precision() const {
     return base->precision;
   }
+  int_least16_t custom_precision() const {
+    return base->custom_precision;
+  }
   void set_precision(amount_t::precision_t arg) {
     base->precision = arg;
   }
+  void set_custom_precision(int_least16_t arg) {
+    base->custom_precision = arg;
+  }
 
   optional<amount_t> smaller() const {
     return base->smaller;
diff --git a/src/textual.cc b/src/textual.cc
index bbae04e..434b02a 100644
--- a/src/textual.cc
+++ b/src/textual.cc
@@ -1136,8 +1136,9 @@ void instance_t::commodity_default_directive(commodity_t& comm)
 void instance_t::commodity_precision_directive(commodity_t& comm,string precise)
 {
   trim(precise);
-  uint8_t _precision_level=boost::lexical_cast<uint8_t>(precise);
-  DEBUG("option.names","precision directive called ");
+  int_least16_t _precision_level=boost::lexical_cast<int_least16_t>(precise);
+  comm.set_custom_precision(_precision_level);
+  comm.add_flags(COMMODITY_SET_CUSTOM_PRECISION);
 }
 void instance_t::tag_directive(char * line)
 {
-- 
1.8.3.2