git.saurik.com Git - apt.git/blame_incremental

0 / 113 ( 0%)

Commit	Line	Data
	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	// $Id: cmndline.h,v 1.7 1999/10/31 06:32:28 jgg Exp $
	4	/* ######################################################################
	5
	6	Command Line Class - Sophisticated command line parser
	7
	8	This class provides a unified command line parser/option handliner/
	9	configuration mechanism. It allows the caller to specify the option
	10	set and map the option set into the configuration class or other
	11	special functioning.
	12
	13	Filenames are stripped from the option stream and put into their
	14	own array.
	15
	16	The argument descriptor array can be initialized as:
	17
	18	CommandLine::Args Args[] =
	19	{{'q',"quiet","apt::get::quiet",CommandLine::IntLevel},
	20	{0,0,0,0}};
	21
	22	The flags mean,
	23	HasArg - Means the argument has a value
	24	IntLevel - Means the argument is an integer level indication, the
	25	following -qqqq (+3) -q5 (=5) -q=5 (=5) are valid
	26	Boolean - Means it is true/false or yes/no.
	27	-d (true) --no-d (false) --yes-d (true)
	28	--long (true) --no-long (false) --yes-long (true)
	29	-d=yes (true) -d=no (false) Words like enable, disable,
	30	true false, yes no and on off are recognized in logical
	31	places.
	32	InvBoolean - Same as boolean but the case with no specified sense
	33	(first case) is set to false.
	34	ConfigFile - Means this flag should be interprited as the name of
	35	a config file to read in at this point in option processing.
	36	Implies HasArg.
	37	ArbItem - Means the item is an arbitrary configuration string of
	38	the form item=value, where item is passed directly
	39	to the configuration class.
	40	The default, if the flags are 0 is to use Boolean
	41
	42	##################################################################### */
	43	/}}}/
	44	#ifndef PKGLIB_CMNDLINE_H
	45	#define PKGLIB_CMNDLINE_H
	46
	47	#ifndef APT_8_CLEANER_HEADERS
	48	#include <apt-pkg/configuration.h>
	49	#endif
	50
	51	class Configuration;
	52
	53	class CommandLine
	54	{
	55	public:
	56	struct Args;
	57	struct Dispatch;
	58
	59	protected:
	60
	61	Args *ArgList;
	62	Configuration *Conf;
	63	bool HandleOpt(int &I,int argc,const char *argv[],
	64	const char &Opt,Args A,bool PreceedeMatch = false);
	65	void static SaveInConfig(unsigned int const &argc, char const * const * const argv);
	66
	67	public:
	68
	69	enum AFlags
	70	{
	71	HasArg = (1 << 0),
	72	IntLevel = (1 << 1),
	73	Boolean = (1 << 2),
	74	InvBoolean = (1 << 3),
	75	ConfigFile = (1 << 4) \| HasArg,
	76	ArbItem = (1 << 5) \| HasArg
	77	};
	78
	79	const char **FileList;
	80
	81	bool Parse(int argc,const char **argv);
	82	void ShowHelp();
	83	unsigned int FileSize() const;
	84	bool DispatchArg(Dispatch *List,bool NoMatch = true);
	85
	86	static char const * GetCommand(Dispatch const * const Map,
	87	unsigned int const argc, char const * const * const argv);
	88
	89	static CommandLine::Args MakeArgs(char ShortOpt, char const *LongOpt,
	90	char const *ConfName, unsigned long Flags);
	91
	92	CommandLine(Args AList,Configuration Conf);
	93	~CommandLine();
	94	};
	95
	96	struct CommandLine::Args
	97	{
	98	char ShortOpt;
	99	const char *LongOpt;
	100	const char *ConfName;
	101	unsigned long Flags;
	102
	103	inline bool end() {return ShortOpt == 0 && LongOpt == 0;};
	104	inline bool IsBoolean() {return Flags == 0 \|\| (Flags & (Boolean\|InvBoolean)) != 0;};
	105	};
	106
	107	struct CommandLine::Dispatch
	108	{
	109	const char *Match;
	110	bool (*Handler)(CommandLine &);
	111	};
	112
	113	#endif