option.h File Reference

Basic type and macros for handling command-line options. More...

#include "scope.h"

Include dependency graph for option.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	ledger::option_error
class	ledger::option_t< T >

Namespaces
namespace	ledger

Macros
#define	BEGIN(type, name)    struct name ## option_t : public option_t<type>
#define	COPY_OPT(name, other)   name ## handler(other.name ## handler)
#define	CTOR(type, name)    name ## option_t() : option_t<type>(#name)
#define	CTOR_(type, name, base)    name ## option_t() : option_t<type>(#name), base
#define	DECL1(type, name, vartype, var, value)
#define	DO()   virtual void handler_thunk(const optional<string>& whence)
#define	DO_(var)
#define	END(name)   name ## handler
#define	HANDLED(name)   HANDLER(name)
#define	HANDLER(name)   name ## handler
#define	MAKE_OPT_FUNCTOR(type, x)    expr_t::op_t::wrap_functor(bind(&option_t<type>::operator(), x, _1))
#define	MAKE_OPT_HANDLER(type, x)    expr_t::op_t::wrap_functor(bind(&option_t<type>::handler, x, _1))
#define	OPT(name)
#define	OPT_(name)
#define	OPT_ALT(name, alt)
#define	OPT_CH(name)
#define	OPTION(type, name)
#define	OPTION_(type, name, body)
#define	OPTION__(type, name, body)
#define	OTHER(name)

Functions
bool	ledger::is_eq (const char *p, const char *n)
strings_list	ledger::process_arguments (strings_list args, scope_t &scope)
void	ledger::process_environment (const char **envp, const string &tag, scope_t &scope)
bool	ledger::process_option (const string &whence, const string &name, scope_t &scope, const char *arg, const string &varname)

Detailed Description

Basic type and macros for handling command-line options.

Author

John Wiegley

Definition in file option.h.

Macro Definition Documentation

BEGIN

#define BEGIN	(		type,
			name )    struct name ## option_t : public option_t<type>

Definition at line 207 of file option.h.

COPY_OPT

#define COPY_OPT	(		name,
			other )   name ## handler(other.name ## handler)

Definition at line 224 of file option.h.

CTOR

#define CTOR	(		type,
			name )    name ## option_t() : option_t<type>(#name)

Definition at line 210 of file option.h.

CTOR_

#define CTOR_	(		type,
			name,
			base )    name ## option_t() : option_t<type>(#name), base

Definition at line 212 of file option.h.

DECL1

#define DECL1	(		type,
			name,
			vartype,
			var,
			value )

Value:

  vartype var ;                                         \
  name ## option_t() : option_t<type>(#name), var value

Definition at line 214 of file option.h.

DO

#define DO

(

)

virtual void handler_thunk(const optional<string>& whence)

Definition at line 218 of file option.h.

DO_

#define DO_

(

var

)

Value:

                                             virtual void handler_thunk(const optional<string>& whence, \
                                             const string& var)

Definition at line 219 of file option.h.

END

#define END

(

name

)

name ## handler

Definition at line 222 of file option.h.

HANDLED

#define HANDLED

(

name

)

HANDLER(name)

Definition at line 264 of file option.h.

Referenced by ledger::report_t::report_format(), and ledger::report_t::what_to_keep().

HANDLER

#define HANDLER

(

name

)

name ## handler

Definition at line 263 of file option.h.

Referenced by ledger::report_t::report_format(), ledger::report_t::report_options(), and ledger::session_t::report_options().

MAKE_OPT_FUNCTOR

#define MAKE_OPT_FUNCTOR	(		type,
			x )    expr_t::op_t::wrap_functor(bind(&option_t<type>::operator(), x, _1))

Definition at line 229 of file option.h.

MAKE_OPT_HANDLER

#define MAKE_OPT_HANDLER	(		type,
			x )    expr_t::op_t::wrap_functor(bind(&option_t<type>::handler, x, _1))

Definition at line 226 of file option.h.

OPT

#define OPT

(

name

)

Value:

  if (is_eq(p, #name))                                                  \
    return ((name ## handler).parent = this, &(name ## handler))

Definition at line 242 of file option.h.

OPT_

#define OPT_

(

name

)

Value:

  if (! *(p + 1) ||                                                     \
      ((name ## handler).wants_arg &&                                   \
       *(p + 1) == '_' && ! *(p + 2)) ||                                \
      is_eq(p, #name))                                                  \
    return ((name ## handler).parent = this, &(name ## handler))

Definition at line 250 of file option.h.

OPT_ALT

#define OPT_ALT	(		name,
			alt )

Value:

  if (is_eq(p, #name) || is_eq(p, #alt))                                \
    return ((name ## handler).parent = this, &(name ## handler))

Definition at line 246 of file option.h.

OPT_CH

#define OPT_CH

(

name

)

Value:

  if (! *(p + 1) ||                                                     \
      ((name ## handler).wants_arg &&                                   \
       *(p + 1) == '_' && ! *(p + 2)))                                  \
    return ((name ## handler).parent = this, &(name ## handler))

Definition at line 257 of file option.h.

OPTION

#define OPTION	(		type,
			name )

Value:

  BEGIN(type, name)                                     \
  {                                                     \
    CTOR(type, name) {}                                 \
  }                                                     \
  END(name)

Definition at line 266 of file option.h.

OPTION_

#define OPTION_	(		type,
			name,
			body )

Value:

  BEGIN(type, name)                                     \
  {                                                     \
    CTOR(type, name) {}                                 \
    body                                                \
  }                                                     \
  END(name)

Definition at line 273 of file option.h.

OPTION__

#define OPTION__	(		type,
			name,
			body )

Value:

  BEGIN(type, name)                                     \
  {                                                     \
    body                                                \
  }                                                     \
  END(name)

Definition at line 281 of file option.h.

OTHER

#define OTHER

(

name

)

Value:

  parent->HANDLER(name).parent = parent;        \
  parent->HANDLER(name)

Definition at line 288 of file option.h.