Segregated symbols into 5 separate namespaces

The different namespaces are:

  Function      Value expression functions, which receive a "context"
  Option        Command-line options
  Precommand    Commands which are invoked before reading the journal
  Command       Commands which are invoked after reading the journal
  Directive     Directives that occur at column 0 in a data file

This greatly eases the ability for Python uses to add intercept hooks to
change how the basic Ledger module functions.  An example of what should
be possible soon:

  import ledger

  def my_foo_handler(value):
      print "--foo received:", value

  ledger.add_handler(ledger.Option, "foo=", my_foo_handler)

1 files changed, 0 insertions, 24 deletions

diff --git a/src/option.h b/src/option.h
index 7e2e0629..c9903c03 100644
--- a/src/option.h
+++ b/src/option.h
@@ -283,30 +283,6 @@ inline bool is_eq(const char * p, const char * n) {
   }							\
   END(name)
 
-#define OPT_PREFIX "opt_"
-#define OPT_PREFIX_LEN 4
-
-#define WANT_OPT()					\
-  (std::strncmp(p, OPT_PREFIX, OPT_PREFIX_LEN) == 0)
-
-#define PRECMD_PREFIX "precmd_"
-#define PRECMD_PREFIX_LEN 7
-
-#define WANT_PRECMD()					\
-  (std::strncmp(p, PRECMD_PREFIX, PRECMD_PREFIX_LEN) == 0)
-
-#define CMD_PREFIX "cmd_"
-#define CMD_PREFIX_LEN 4
-
-#define WANT_CMD()					\
-  (std::strncmp(p, CMD_PREFIX, CMD_PREFIX_LEN) == 0)
-
-#define DIR_PREFIX "dir_"
-#define DIR_PREFIX_LEN 4
-
-#define WANT_DIR()					\
-  (std::strncmp(p, DIR_PREFIX, DIR_PREFIX_LEN) == 0)
-
 bool process_option(const string& whence, const string& name, scope_t& scope,
 		    const char * arg, const string& varname);