a bit more refactoring

Makefile.am

@@ -1,8 +1,8 @@
 lib_LTLIBRARIES = libledger.la
 libledger_la_CXXFLAGS =
-libledger_la_SOURCES = amount.cc balance.cc value.cc autoxact.cc \
-	binary.cc config.cc datetime.cc format.cc journal.cc option.cc \
-	parser.cc qif.cc quotes.cc textual.cc valexpr.cc walk.cc
+libledger_la_SOURCES = amount.cc autoxact.cc balance.cc binary.cc \
+	config.cc datetime.cc derive.cc format.cc journal.cc option.cc \
+	parser.cc qif.cc quotes.cc textual.cc valexpr.cc value.cc walk.cc
 if READ_GNUCASH
 libledger_la_SOURCES += gnucash.cc
 endif

derive.cc

@@ -0,0 +1,147 @@
+#include "derive.h"
+#include "datetime.h"
+#include "valexpr.h"
+#include "error.h"
+
+namespace ledger {
+
+entry_t * derive_new_entry(journal_t& journal,
+			   strings_list::iterator i,
+			   strings_list::iterator end)
+{
+  std::auto_ptr<entry_t> added(new entry_t);
+
+  entry_t * matching = NULL;
+
+  if (! parse_date((*i).c_str(), &added->date))
+    throw error("Bad date passed to 'entry'");
+
+  if (++i == end)
+    throw error("Too few arguments to 'entry'");
+
+  mask_t regexp(*i++);
+
+  for (entries_list::reverse_iterator j = journal.entries.rbegin();
+       j != journal.entries.rend();
+       j++)
+    if (regexp.match((*j)->payee)) {
+      matching = *j;
+      break;
+    }
+
+  added->payee = matching ? matching->payee : regexp.pattern;
+
+  if (i == end)
+    throw error("Too few arguments to 'entry'");
+
+  if ((*i)[0] == '-' || std::isdigit((*i)[0])) {
+    if (! matching)
+      throw error("Could not determine the account to draw from");
+
+    transaction_t * m_xact, * xact, * first;
+    m_xact = matching->transactions.front();
+
+    first = xact = new transaction_t(m_xact->account, amount_t(*i++));
+    added->add_transaction(xact);
+
+    if (xact->amount.commodity().symbol.empty())
+      xact->amount.set_commodity(m_xact->amount.commodity());
+
+    m_xact = matching->transactions.back();
+
+    xact = new transaction_t(m_xact->account, - first->amount);
+    added->add_transaction(xact);
+
+    if (i != end) {
+      account_t * acct = journal.find_account_re(*i);
+      if (! acct)
+	acct = journal.find_account(*i);
+      if (acct)
+	added->transactions.back()->account = acct;
+    }
+  } else {
+    while (i != end) {
+      std::string&  re_pat(*i++);
+      account_t *   acct  = NULL;
+      commodity_t * cmdty = NULL;
+
+      if (matching) {
+	mask_t acct_regex(re_pat);
+
+	for (transactions_list::const_iterator x
+	       = matching->transactions.begin();
+	     x != matching->transactions.end();
+	     x++) {
+	  if (acct_regex.match((*x)->account->fullname())) {
+	    acct  = (*x)->account;
+	    cmdty = &(*x)->amount.commodity();
+	    break;
+	  }
+	}
+      }
+
+      if (! acct) {
+	acct = journal.find_account_re(re_pat);
+	if (acct && acct->transactions.size() > 0)
+	  cmdty = &acct->transactions.back()->amount.commodity();
+      }
+
+      if (! acct)
+	acct = journal.find_account(re_pat);
+
+      if (i == end) {
+	added->add_transaction(new transaction_t(acct));
+	goto done;
+      }
+
+      transaction_t * xact = new transaction_t(acct, amount_t(*i++));
+      if (! xact->amount.commodity())
+	xact->amount.set_commodity(*cmdty);
+
+      added->add_transaction(xact);
+    }
+
+    if (! matching) {
+      throw error("Could not determine the account to draw from");
+    } else {
+      transaction_t * xact
+	= new transaction_t(matching->transactions.back()->account);
+      added->add_transaction(xact);
+    }
+  }
+
+ done:
+  if (! run_hooks(journal.entry_finalize_hooks, *added))
+    return NULL;
+
+  return added.release();
+}
+
+} // namespace ledger
+
+#ifdef USE_BOOST_PYTHON
+
+#include <boost/python.hpp>
+#include <boost/python/detail/api_placeholder.hpp>
+
+using namespace boost::python;
+using namespace ledger;
+
+entry_t * py_derive_new_entry(journal_t& journal, list args)
+{
+  strings_list strs;
+
+  int l = len(args);
+  for (int i = 0; i < l; i++)
+    strs.push_back(extract<std::string>(args[i]));
+
+  return derive_new_entry(journal, strs.begin(), strs.end());
+}
+
+void export_derive()
+{
+  def("derive_new_entry", py_derive_new_entry,
+      return_value_policy<manage_new_object>());
+}
+
+#endif // USE_BOOST_PYTHON

derive.h

@@ -0,0 +1,14 @@
+#ifndef _DERIVE_H
+#define _DERIVE_H
+
+#include "journal.h"
+
+namespace ledger {
+
+entry_t * derive_new_entry(journal_t& journal,
+			   strings_list::iterator begin,
+			   strings_list::iterator end);
+
+} // namespace ledger
+
+#endif // _DERIVE_H

journal.cc

@@ -426,117 +426,6 @@ bool journal_t::remove_entry(entry_t * entry)
   return true;
 }
 
-entry_t * journal_t::derive_entry(strings_list::iterator i,
-				  strings_list::iterator end)
-{
-  std::auto_ptr<entry_t> added(new entry_t);
-
-  entry_t * matching = NULL;
-
-  if (! parse_date((*i).c_str(), &added->date))
-    throw error("Bad date passed to 'entry'");
-
-  if (++i == end)
-    throw error("Too few arguments to 'entry'");
-
-  mask_t regexp(*i++);
-
-  for (entries_list::reverse_iterator j = entries.rbegin();
-       j != entries.rend();
-       j++)
-    if (regexp.match((*j)->payee)) {
-      matching = *j;
-      break;
-    }
-
-  added->payee = matching ? matching->payee : regexp.pattern;
-
-  if (i == end)
-    throw error("Too few arguments to 'entry'");
-
-  if ((*i)[0] == '-' || std::isdigit((*i)[0])) {
-    if (! matching)
-      throw error("Could not determine the account to draw from");
-
-    transaction_t * m_xact, * xact, * first;
-    m_xact = matching->transactions.front();
-
-    first = xact = new transaction_t(m_xact->account, amount_t(*i++));
-    added->add_transaction(xact);
-
-    if (xact->amount.commodity().symbol.empty())
-      xact->amount.set_commodity(m_xact->amount.commodity());
-
-    m_xact = matching->transactions.back();
-
-    xact = new transaction_t(m_xact->account, - first->amount);
-    added->add_transaction(xact);
-
-    if (i != end) {
-      account_t * acct = find_account_re(*i);
-      if (! acct)
-	acct = find_account(*i);
-      if (acct)
-	added->transactions.back()->account = acct;
-    }
-  } else {
-    while (i != end) {
-      std::string&  re_pat(*i++);
-      account_t *   acct  = NULL;
-      commodity_t * cmdty = NULL;
-
-      if (matching) {
-	mask_t acct_regex(re_pat);
-
-	for (transactions_list::const_iterator x
-	       = matching->transactions.begin();
-	     x != matching->transactions.end();
-	     x++) {
-	  if (acct_regex.match((*x)->account->fullname())) {
-	    acct  = (*x)->account;
-	    cmdty = &(*x)->amount.commodity();
-	    break;
-	  }
-	}
-      }
-
-      if (! acct) {
-	acct = find_account_re(re_pat);
-	if (acct && acct->transactions.size() > 0)
-	  cmdty = &acct->transactions.back()->amount.commodity();
-      }
-
-      if (! acct)
-	acct = find_account(re_pat);
-
-      if (i == end) {
-	added->add_transaction(new transaction_t(acct));
-	goto done;
-      }
-
-      transaction_t * xact = new transaction_t(acct, amount_t(*i++));
-      if (! xact->amount.commodity())
-	xact->amount.set_commodity(*cmdty);
-
-      added->add_transaction(xact);
-    }
-
-    if (! matching) {
-      throw error("Could not determine the account to draw from");
-    } else {
-      transaction_t * xact
-	= new transaction_t(matching->transactions.back()->account);
-      added->add_transaction(xact);
-    }
-  }
-
- done:
-  if (! run_hooks(entry_finalize_hooks, *added))
-    return NULL;
-
-  return added.release();
-}
-
 bool journal_t::valid() const
 {
   if (! master->valid())
@@ -798,8 +687,6 @@ void export_journal()
     .def("remove_entry_finalize_hook", py_remove_entry_finalize_hook)
     .def("run_entry_finalize_hooks", py_run_entry_finalize_hooks)
 #endif
-    .def("derive_entry", &journal_t::derive_entry,
-	 return_value_policy<manage_new_object>())
 
     .def("valid", &journal_t::valid)
     ;

journal.h

@@ -251,9 +251,6 @@ class journal_t
   bool add_entry(entry_t * entry);
   bool remove_entry(entry_t * entry);
 
-  entry_t * derive_entry(strings_list::iterator begin,
-			 strings_list::iterator end);
-
   bool valid() const;
 };
 

ledger.h

@@ -29,6 +29,9 @@
 #include <textual.h>
 #include <autoxact.h>
 #include <binary.h>
+#ifdef READ_GNUCASH
+#include <gnucash.h>
+#endif
 #include <qif.h>
 
 #include <error.h>

main.cc

@@ -11,6 +11,7 @@
 #include "format.h"
 #include "walk.h"
 #include "quotes.h"
+#include "derive.h"
 #include "option.h"
 #include "config.h"
 #include "debug.h"
@@ -239,7 +240,7 @@ int parse_and_report(int argc, char * argv[], char * envp[])
 
   std::auto_ptr<entry_t> new_entry;
   if (command == "e") {
-    new_entry.reset(journal->derive_entry(arg, args.end()));
+    new_entry.reset(derive_new_entry(*journal, arg, args.end()));
     if (! new_entry.get())
       return 1;
   }

main.py

@@ -118,7 +118,7 @@ config.process_options(command, args);
 
 new_entry = None
 if command == "e":
-    new_entry = journal.derive_entry (args)
+    new_entry = derive_new_entry (journal, args)
     if new_entry is None:
 	sys.exit (1)
 

python.cc

@@ -29,6 +29,7 @@ void export_format();
 void export_valexpr();
 void export_datetime();
 void export_autoxact();
+void export_derive();
 
 void initialize_ledger_for_python()
 {
@@ -50,6 +51,7 @@ void initialize_ledger_for_python()
   export_valexpr();
   export_datetime();
   export_autoxact();
+  export_derive();
 
   module_initialized = true;
 }