Many changes.

1 files changed, 313 insertions, 0 deletions

diff --git a/src/driver/session.cc b/src/driver/session.cc
new file mode 100644
index 00000000..71f5f349
--- /dev/null
+++ b/src/driver/session.cc
@@ -0,0 +1,313 @@
+/*
+ * Copyright (c) 2003-2007, John Wiegley.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of New Artisans LLC nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "session.h"
+
+namespace ledger {
+
+session_t * session_t::current = NULL;
+
+#if 0
+boost::mutex session_t::session_mutex;
+#endif
+
+static void initialize();
+static void shutdown();
+
+void set_session_context(session_t * session)
+{
+#if 0
+  session_t::session_mutex.lock();
+#endif
+
+  if (session && ! session_t::current) {
+    initialize();
+  }
+  else if (! session && session_t::current) {
+    shutdown();
+#if 0
+    session_t::session_mutex.unlock();
+#endif
+  }
+
+  session_t::current = session;
+}
+
+void release_session_context()
+{
+#if 0
+  session_t::session_mutex.unlock();
+#endif
+}
+
+session_t::session_t()
+  : symbol_scope_t(),
+
+    register_format
+    ("%((//entry)%{date} %-.20{payee}"
+     "%((./xact)%32|%-22{abbrev(account, 22)} %12.67t %12.80T\n))"),
+    wide_register_format
+    ("%D  %-.35P %-.38A %22.108t %!22.132T\n%/"
+     "%48|%-.38A %22.108t %!22.132T\n"),
+    print_format
+#if 1
+    ("%(/%(/%{date} %-.20{payee}\n%(:    %-34{account}  %12t\n)\n))"),
+#else
+    ("\n%d %Y%C%P\n    %-34W  %12o%n\n%/    %-34W  %12o%n\n"),
+#endif
+    balance_format
+    ("%(/%(//%20t  %{\"  \" * rdepth}%{rname}\n))--------------------\n%20t\n"),
+    equity_format
+
+    ("%((/)%{ftime(now, date_format)} %-.20{\"Opening Balance\"}\n%((.//account[value != 0])    %-34{fullname}  %12{value}\n)\n)"),
+    plot_amount_format
+    ("%D %(@S(@t))\n"),
+    plot_total_format
+    ("%D %(@S(@T))\n"),
+    write_hdr_format
+    ("%d %Y%C%P\n"),
+    write_xact_format
+    ("    %-34W  %12o%n\n"),
+    prices_format
+    ("%[%Y/%m/%d %H:%M:%S %Z]   %-10A %12t %12T\n"),
+    pricesdb_format
+    ("P %[%Y/%m/%d %H:%M:%S] %A %t\n"),
+
+    pricing_leeway(24 * 3600),
+
+    download_quotes(false),
+    use_cache(false),
+    cache_dirty(false),
+
+    now(now),
+
+    elision_style(ABBREVIATE),
+    abbrev_length(2),
+
+    ansi_codes(false),
+    ansi_invert(false)
+{
+  TRACE_CTOR(session_t, "xml::xpath_t::scope_t&");
+}
+
+std::size_t session_t::read_journal(std::istream&   in,
+				    const path&     pathname,
+				    xml::builder_t& builder)
+{
+#if 0
+  if (! master)
+    master = journal->master;
+#endif
+
+  foreach (parser_t& parser, parsers)
+    if (parser.test(in))
+      return parser.parse(in, pathname, builder);
+
+  return 0;
+}
+
+std::size_t session_t::read_journal(const path&     pathname,
+				    xml::builder_t& builder)
+{
+#if 0
+  journal->sources.push_back(pathname);
+#endif
+
+  if (! exists(pathname))
+    throw_(std::logic_error, "Cannot read file" << pathname);
+
+  ifstream stream(pathname);
+  return read_journal(stream, pathname, builder);
+}
+
+void session_t::read_init()
+{
+  if (! init_file)
+    return;
+
+  if (! exists(*init_file))
+    throw_(std::logic_error, "Cannot read init file" << *init_file);
+
+  ifstream init(*init_file);
+
+  // jww (2006-09-15): Read initialization options here!
+}
+
+std::size_t session_t::read_data(xml::builder_t& builder,
+				 journal_t *	 journal,
+				 const string&	 master_account)
+{
+  if (data_file.empty())
+    throw_(parse_error, "No journal file was specified (please use -f)");
+
+  TRACE_START(parser, 1, "Parsing journal file");
+
+  std::size_t entry_count = 0;
+
+  DEBUG("ledger.cache", "3. use_cache = " << use_cache);
+
+  if (use_cache && cache_file) {
+    DEBUG("ledger.cache", "using_cache " << cache_file->string());
+    cache_dirty = true;
+    if (exists(*cache_file)) {
+      scoped_variable<optional<path> >
+	save_price_db(journal->price_db, price_db);
+
+      entry_count += read_journal(*cache_file, builder);
+      if (entry_count > 0)
+	cache_dirty = false;
+    }
+  }
+
+  if (entry_count == 0) {
+    account_t * acct = NULL;
+    if (! master_account.empty())
+      acct = journal->find_account(master_account);
+
+    journal->price_db = price_db;
+    if (journal->price_db && exists(*journal->price_db)) {
+      if (read_journal(*journal->price_db, builder)) {
+	throw_(parse_error, "Entries not allowed in price history file");
+      } else {
+	DEBUG("ledger.cache",
+	      "read price database " << journal->price_db->string());
+	journal->sources.pop_back();
+      }
+    }
+
+    DEBUG("ledger.cache", "rejected cache, parsing " << data_file.string());
+    if (data_file == "-") {
+      use_cache = false;
+      journal->sources.push_back("<stdin>");
+      entry_count += read_journal(std::cin, "<stdin>", builder);
+    }
+    else if (exists(data_file)) {
+      entry_count += read_journal(data_file, builder);
+      if (journal->price_db)
+	journal->sources.push_back(*journal->price_db);
+    }
+  }
+
+  VERIFY(journal->valid());
+
+  TRACE_STOP(parser, 1);
+
+  return entry_count;
+}
+
+#if 0
+optional<value_t>
+session_t::resolve(const string& name, xml::xpath_t::scope_t& locals)
+{
+  const char * p = name.c_str();
+  switch (*p) {
+  case 'd':
+#if 0
+    if (name == "date_format") {
+      // jww (2007-04-18): What to do here?
+      return value_t(moment_t::output_format, true);
+    }
+#endif
+    break;
+
+  case 'n':
+    switch (*++p) {
+    case 'o':
+      if (name == "now")
+	return value_t(now);
+      break;
+    }
+    break;
+
+  case 'r':
+    if (name == "register_format")
+      return value_t(register_format, true);
+    break;
+  }
+  return xml::xpath_t::scope_t::resolve(name, locals);
+}
+#endif
+
+xml::xpath_t::ptr_op_t session_t::lookup(const string& name)
+{
+  const char * p = name.c_str();
+  switch (*p) {
+  case 'o':
+    if (std::strncmp(p, "option_", 7) == 0) {
+      p = p + 7;
+      switch (*p) {
+      case 'd':
+	if (std::strcmp(p, "debug_") == 0)
+	  return MAKE_FUNCTOR(session_t::option_debug_);
+	break;
+
+      case 'f':
+	if ((*(p + 1) == '_' && ! *(p + 2)) ||
+	    std::strcmp(p, "file_") == 0)
+	  return MAKE_FUNCTOR(session_t::option_file_);
+	break;
+
+      case 't':
+	if (std::strcmp(p, "trace_") == 0)
+	  return MAKE_FUNCTOR(session_t::option_trace_);
+	break;
+
+      case 'v':
+	if (! *(p + 1) || std::strcmp(p, "verbose") == 0)
+	  return MAKE_FUNCTOR(session_t::option_verbose);
+	else if (std::strcmp(p, "verify") == 0)
+	  return MAKE_FUNCTOR(session_t::option_verify);
+	break;
+      }
+    }
+    break;
+  }
+
+  return xml::xpath_t::symbol_scope_t::lookup(name);
+}
+
+// jww (2007-04-26): All of Ledger should be accessed through a
+// session_t object
+static void initialize()
+{
+  amount_t::initialize();
+  value_t::initialize();
+  xml::xpath_t::initialize();
+}
+
+static void shutdown()
+{
+  xml::xpath_t::shutdown();
+  value_t::shutdown();
+  amount_t::shutdown();
+}
+
+} // namespace ledger