Moved the pre-commands to their own file, and created new "args" command.

1 files changed, 167 insertions, 0 deletions

diff --git a/src/precmd.cc b/src/precmd.cc
new file mode 100644
index 00000000..535526b1
--- /dev/null
+++ b/src/precmd.cc
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2003-2009, 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 "precmd.h"
+#include "report.h"
+
+namespace ledger {
+
+value_t parse_command(call_scope_t& args)
+{
+  var_t<string> arg(args, 0);
+
+  if (! arg) {
+    throw std::logic_error("Usage: parse TEXT");
+    return 1L;
+  }
+
+  report_t& report(find_scope<report_t>(args));
+  std::ostream& out(report.output_stream);
+
+  out << "--- Input text ---" << std::endl;
+  out << *arg << std::endl;
+
+  out << std::endl << "--- Text as parsed ---" << std::endl;
+  expr_t expr(*arg);
+  expr.print(out);
+  out << std::endl;
+
+  out << std::endl << "--- Expression tree ---" << std::endl;
+  expr.dump(out);
+
+  expr.compile(args);
+  out << std::endl << "--- Compiled tree ---" << std::endl;
+  expr.dump(out);
+
+  out << std::endl << "--- Calculated value ---" << std::endl;
+  value_t result(expr.calc(args));
+  result.print(out);
+  out << std::endl;
+
+  out << std::endl << "--- Calculated value as XML ---" << std::endl;
+  result.write_xml(out);
+
+  return 0L;
+}
+
+value_t eval_command(call_scope_t& args)
+{
+  var_t<string> arg(args, 0);
+
+  if (! arg) {
+    throw std::logic_error("Usage: eval TEXT");
+    return 1L;
+  }
+
+  report_t& report(find_scope<report_t>(args));
+  std::ostream& out(report.output_stream);
+
+  expr_t expr(*arg);
+  out << expr.calc(args).strip_annotations() << std::endl;
+  return 0L;
+}
+
+value_t format_command(call_scope_t& args)
+{
+  var_t<string> arg(args, 0);
+
+  if (! arg) {
+    throw std::logic_error("Usage: format TEXT");
+    return 1L;
+  }
+
+  report_t& report(find_scope<report_t>(args));
+  std::ostream& out(report.output_stream);
+
+  format_t fmt(*arg);
+  fmt.dump(out);
+
+  return 0L;
+}
+
+value_t period_command(call_scope_t& args)
+{
+  var_t<string> arg(args, 0);
+
+  if (! arg) {
+    throw std::logic_error("Usage: period TEXT");
+    return 1L;
+  }
+
+  report_t& report(find_scope<report_t>(args));
+  std::ostream& out(report.output_stream);
+
+  interval_t interval(*arg);
+
+  if (! is_valid(interval.begin)) {
+    out << "Time period has no beginning." << std::endl;
+  } else {
+    out << "begin: " << format_date(interval.begin) << std::endl;
+    out << "  end: " << format_date(interval.end) << std::endl;
+    out << std::endl;
+
+    date_t date = interval.first();
+
+    for (int i = 0; i < 20; i++) {
+      out << std::right;
+      out.width(2);
+
+      out << i << ": " << format_date(date) << std::endl;
+
+      date = interval.increment(date);
+      if (is_valid(interval.end) && date >= interval.end)
+	break;
+    }
+  }
+  return 0L;
+}
+
+value_t args_command(call_scope_t& args)
+{
+  report_t& report(find_scope<report_t>(args));
+  std::ostream& out(report.output_stream);
+
+  value_t::sequence_t::const_iterator begin = args.value().begin();
+  value_t::sequence_t::const_iterator end   = args.value().end();
+
+  out << "--- Input arguments ---" << std::endl;
+  args.value().print(out);
+  out << std::endl << std::endl;
+
+  string predicate = args_to_predicate_expr(begin, end);
+
+  call_scope_t sub_args(static_cast<scope_t&>(args));
+  sub_args.push_back(string_value(predicate));
+
+  return parse_command(sub_args);
+}
+
+} // namespace ledger