[apt.git] / apt-pkg / contrib / cmndline.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: cmndline.cc,v 1.15 2003/02/10 01:40:58 doogie Exp $
/* ######################################################################

   Command Line Class - Sophisticated command line parser
   
   This source is placed in the Public Domain, do with it what you will
   It was originally written by Jason Gunthorpe <jgg@debian.org>.
   
   ##################################################################### */
									/*}}}*/
// Include files							/*{{{*/
#include<config.h>

#include <apt-pkg/configuration.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>

#include <apti18n.h>
									/*}}}*/
using namespace std;

// CommandLine::CommandLine - Constructor				/*{{{*/
// ---------------------------------------------------------------------
/* */
CommandLine::CommandLine(Args *AList,Configuration *Conf) : ArgList(AList), 
                                 Conf(Conf), FileList(0)
{
}
									/*}}}*/
// CommandLine::~CommandLine - Destructor				/*{{{*/
// ---------------------------------------------------------------------
/* */
CommandLine::~CommandLine()
{
   delete [] FileList;
}
									/*}}}*/
// CommandLine::GetCommand - return the first non-option word		/*{{{*/
char const * CommandLine::GetCommand(Dispatch const * const Map,
      unsigned int const argc, char const * const * const argv)
{
   // if there is a -- on the line there must be the word we search for around it
   // as -- marks the end of the options, just not sure if the command can be
   // considered an option or not, so accept both
   for (size_t i = 1; i < argc; ++i)
   {
      if (strcmp(argv[i], "--") != 0)
	 continue;
      ++i;
      if (i < argc)
	 for (size_t j = 0; Map[j].Match != NULL; ++j)
	    if (strcmp(argv[i], Map[j].Match) == 0)
	       return Map[j].Match;
      i -= 2;
      if (i != 0)
	 for (size_t j = 0; Map[j].Match != NULL; ++j)
	    if (strcmp(argv[i], Map[j].Match) == 0)
	       return Map[j].Match;
      return NULL;
   }
   // no --, so search for the first word matching a command
   // FIXME: How like is it that an option parameter will be also a valid Match ?
   for (size_t i = 1; i < argc; ++i)
   {
      if (*(argv[i]) == '-')
	 continue;
      for (size_t j = 0; Map[j].Match != NULL; ++j)
	 if (strcmp(argv[i], Map[j].Match) == 0)
	    return Map[j].Match;
   }
   return NULL;
}
									/*}}}*/
// CommandLine::Parse - Main action member				/*{{{*/
// ---------------------------------------------------------------------
/* */
bool CommandLine::Parse(int argc,const char **argv)
{
   delete [] FileList;
   FileList = new const char *[argc];
   const char **Files = FileList;
   int I;
   for (I = 1; I != argc; I++)
   {
      const char *Opt = argv[I];
      
      // It is not an option
      if (*Opt != '-')
      {
	 *Files++ = Opt;
	 continue;
      }
      
      Opt++;
      
      // Double dash signifies the end of option processing
      if (*Opt == '-' && Opt[1] == 0)
      {
	 I++;
	 break;
      }
      
      // Single dash is a short option
      if (*Opt != '-')
      {
	 // Iterate over each letter
	 while (*Opt != 0)
	 {	    
	    // Search for the option
	    Args *A;
	    for (A = ArgList; A->end() == false && A->ShortOpt != *Opt; A++);
	    if (A->end() == true)
	       return _error->Error(_("Command line option '%c' [from %s] is not known."),*Opt,argv[I]);

	    if (HandleOpt(I,argc,argv,Opt,A) == false)
	       return false;
	    if (*Opt != 0)
	       Opt++;	       
	 }
	 continue;
      }
      
      Opt++;

      // Match up to a = against the list
      Args *A;
      const char *OptEnd = strchrnul(Opt, '=');
      for (A = ArgList; A->end() == false &&
	   (A->LongOpt == 0 || stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
	   ++A);
      
      // Failed, look for a word after the first - (no-foo)
      bool PreceedMatch = false;
      if (A->end() == true)
      {
         Opt = (const char*) memchr(Opt, '-', OptEnd - Opt);
	 if (Opt == NULL)
	    return _error->Error(_("Command line option %s is not understood"),argv[I]);
	 Opt++;
	 
	 for (A = ArgList; A->end() == false &&
	      (A->LongOpt == 0 || stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
	      ++A);

	 // Failed again..
	 if (A->end() == true && OptEnd - Opt != 1)
	    return _error->Error(_("Command line option %s is not understood"),argv[I]);

	 // The option could be a single letter option prefixed by a no-..
	 if (A->end() == true)
	 {
	    for (A = ArgList; A->end() == false && A->ShortOpt != *Opt; A++);
	    
	    if (A->end() == true)
	       return _error->Error(_("Command line option %s is not understood"),argv[I]);
	 }
	 
	 // The option is not boolean
	 if (A->IsBoolean() == false)
	    return _error->Error(_("Command line option %s is not boolean"),argv[I]);
	 PreceedMatch = true;
      }
      
      // Deal with it.
      OptEnd--;
      if (HandleOpt(I,argc,argv,OptEnd,A,PreceedMatch) == false)
	 return false;
   }
   
   // Copy any remaining file names over
   for (; I != argc; I++)
      *Files++ = argv[I];
   *Files = 0;

   SaveInConfig(argc, argv);

   return true;
}
									/*}}}*/
// CommandLine::HandleOpt - Handle a single option including all flags	/*{{{*/
// ---------------------------------------------------------------------
/* This is a helper function for parser, it looks at a given argument
   and looks for specific patterns in the string, it gets tokanized
   -ruffly- like -*[yes|true|enable]-(o|longopt)[=][ ][argument] */
bool CommandLine::HandleOpt(int &I,int argc,const char *argv[],
			    const char *&Opt,Args *A,bool PreceedMatch)
{
   const char *Argument = 0;
   bool CertainArg = false;
   int IncI = 0;

   /* Determine the possible location of an option or 0 if their is
      no option */
   if (Opt[1] == 0 || (Opt[1] == '=' && Opt[2] == 0))
   {
      if (I + 1 < argc && argv[I+1][0] != '-')
	 Argument = argv[I+1];
      
      // Equals was specified but we fell off the end!
      if (Opt[1] == '=' && Argument == 0)
	 return _error->Error(_("Option %s requires an argument."),argv[I]);
      if (Opt[1] == '=')
	 CertainArg = true;
	 
      IncI = 1;
   }
   else
   {
      if (Opt[1] == '=')
      {
	 CertainArg = true;
	 Argument = Opt + 2;
      }      
      else
	 Argument = Opt + 1;
   }
   
   // Option is an argument set
   if ((A->Flags & HasArg) == HasArg)
   {
      if (Argument == 0)
	 return _error->Error(_("Option %s requires an argument."),argv[I]);
      Opt += strlen(Opt);
      I += IncI;
      
      // Parse a configuration file
      if ((A->Flags & ConfigFile) == ConfigFile)
	 return ReadConfigFile(*Conf,Argument);

      // Arbitrary item specification
      if ((A->Flags & ArbItem) == ArbItem)
      {
	 const char *J = strchr(Argument, '=');
	 if (J == NULL)
	    return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);

	 // = is trailing
	 if (J[1] == 0)
	 {
	    if (I+1 >= argc)
	       return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);
	    Conf->Set(string(Argument,J-Argument),string(argv[I++ +1]));
	 }
	 else
	    Conf->Set(string(Argument,J-Argument),string(J+1));
	 
	 return true;
      }
      
      const char *I = strchrnul(A->ConfName, ' ');
      if (*I == ' ')
	 Conf->Set(string(A->ConfName,0,I-A->ConfName),string(I+1) + Argument);
      else
	 Conf->Set(A->ConfName,string(I) + Argument);
	 
      return true;
   }
   
   // Option is an integer level
   if ((A->Flags & IntLevel) == IntLevel)
   {
      // There might be an argument
      if (Argument != 0)
      {
	 char *EndPtr;
	 unsigned long Value = strtol(Argument,&EndPtr,10);
	 
	 // Conversion failed and the argument was specified with an =s
	 if (EndPtr == Argument && CertainArg == true)
	    return _error->Error(_("Option %s requires an integer argument, not '%s'"),argv[I],Argument);

	 // Conversion was ok, set the value and return
	 if (EndPtr != 0 && EndPtr != Argument && *EndPtr == 0)
	 {
	    Conf->Set(A->ConfName,Value);
	    Opt += strlen(Opt);
	    I += IncI;
	    return true;
	 }	 
      }      
      
      // Increase the level
      Conf->Set(A->ConfName,Conf->FindI(A->ConfName)+1);
      return true;
   }
  
   // Option is a boolean
   int Sense = -1;  // -1 is unspecified, 0 is yes 1 is no

   // Look for an argument.
   while (1)
   {
      // Look at preceding text
      char Buffer[300];
      if (Argument == 0)
      {
	 if (PreceedMatch == false)
	    break;
	 
	 if (strlen(argv[I]) >= sizeof(Buffer))
	    return _error->Error(_("Option '%s' is too long"),argv[I]);

	 // Skip the leading dash
	 const char *J = argv[I];
	 for (; *J != 0 && *J == '-'; J++);

	 const char *JEnd = strchr(J, '-');
	 if (JEnd != NULL)
	 {
	    strncpy(Buffer,J,JEnd - J);
	    Buffer[JEnd - J] = 0;
	    Argument = Buffer;
	    CertainArg = true;
	 }	 
	 else
	    break;
      }

      // Check for boolean
      Sense = StringToBool(Argument);
      if (Sense >= 0)
      {
	 // Eat the argument	 
	 if (Argument != Buffer)
	 {
	    Opt += strlen(Opt);
	    I += IncI;
	 }	 
	 break;
      }

      if (CertainArg == true)
	 return _error->Error(_("Sense %s is not understood, try true or false."),Argument);
      
      Argument = 0;
   }
      
   // Indeterminate sense depends on the flag
   if (Sense == -1)
   {
      if ((A->Flags & InvBoolean) == InvBoolean)
	 Sense = 0;
      else
	 Sense = 1;
   }
   
   Conf->Set(A->ConfName,Sense);
   return true;
}
									/*}}}*/
// CommandLine::FileSize - Count the number of filenames		/*{{{*/
// ---------------------------------------------------------------------
/* */
unsigned int CommandLine::FileSize() const
{
   unsigned int Count = 0;
   for (const char **I = FileList; I != 0 && *I != 0; I++)
      Count++;
   return Count;
}
									/*}}}*/
// CommandLine::DispatchArg - Do something with the first arg		/*{{{*/
// ---------------------------------------------------------------------
/* */
bool CommandLine::DispatchArg(Dispatch *Map,bool NoMatch)
{
   int I;
   for (I = 0; Map[I].Match != 0; I++)
   {
      if (strcmp(FileList[0],Map[I].Match) == 0)
      {
	 bool Res = Map[I].Handler(*this);
	 if (Res == false && _error->PendingError() == false)
	    _error->Error("Handler silently failed");
	 return Res;
      }
   }
   
   // No matching name
   if (Map[I].Match == 0)
   {
      if (NoMatch == true)
	 _error->Error(_("Invalid operation %s"),FileList[0]);
   }
   
   return false;
}
									/*}}}*/
// CommandLine::SaveInConfig - for output later in a logfile or so	/*{{{*/
// ---------------------------------------------------------------------
/* We save the commandline here to have it around later for e.g. logging.
   It feels a bit like a hack here and isn't bulletproof, but it is better
   than nothing after all. */
void CommandLine::SaveInConfig(unsigned int const &argc, char const * const * const argv)
{
   char cmdline[100 + argc * 50];
   memset(cmdline, 0, sizeof(cmdline));
   unsigned int length = 0;
   bool lastWasOption = false;
   bool closeQuote = false;
   for (unsigned int i = 0; i < argc && length < sizeof(cmdline); ++i, ++length)
   {
      for (unsigned int j = 0; argv[i][j] != '\0' && length < sizeof(cmdline)-1; ++j, ++length)
      {
	 cmdline[length] = argv[i][j];
	 if (lastWasOption == true && argv[i][j] == '=')
	 {
	    // That is possibly an option: Quote it if it includes spaces,
	    // the benefit is that this will eliminate also most false positives
	    const char* c = strchr(&argv[i][j+1], ' ');
	    if (c == NULL) continue;
	    cmdline[++length] = '"';
	    closeQuote = true;
	 }
      }
      if (closeQuote == true)
	 cmdline[length++] = '"';
      // Problem: detects also --hello
      if (cmdline[length-1] == 'o')
	 lastWasOption = true;
      cmdline[length] = ' ';
   }
   cmdline[--length] = '\0';
   _config->Set("CommandLine::AsString", cmdline);
}
									/*}}}*/
CommandLine::Args CommandLine::MakeArgs(char ShortOpt, char const *LongOpt, char const *ConfName, unsigned long Flags)/*{{{*/
{
   /* In theory, this should be a constructor for CommandLine::Args instead,
      but this breaks compatibility as gcc thinks this is a c++11 initializer_list */
   CommandLine::Args arg;
   arg.ShortOpt = ShortOpt;
   arg.LongOpt = LongOpt;
   arg.ConfName = ConfName;
   arg.Flags = Flags;
   return arg;
}
									/*}}}*/
Commit	Line	Data
08e8f724 AL	1	// -- mode: cpp; mode: fold --
08e8f724 AL	2	// Description /{{{/
bac2e715	3	// $Id: cmndline.cc,v 1.15 2003/02/10 01:40:58 doogie Exp $
08e8f724 AL	4	/* ######################################################################
	5
	6	Command Line Class - Sophisticated command line parser
	7
7da2b375 AL	8	This source is placed in the Public Domain, do with it what you will
	9	It was originally written by Jason Gunthorpe <jgg@debian.org>.
	10
08e8f724 AL	11	##################################################################### */
	12	/}}}/
	13	// Include files /{{{/
ea542140 DK	14	#include<config.h>
ea542140 DK	15
472ff00e	16	#include <apt-pkg/configuration.h>
08e8f724 AL	17	#include <apt-pkg/cmndline.h>
08e8f724 AL	18	#include <apt-pkg/error.h>
cdcc6d34	19	#include <apt-pkg/strutl.h>
b2e465d6	20
ea542140	21	#include <apti18n.h>
08e8f724	22	/}}}/
584e4558	23	using namespace std;
08e8f724 AL	24
	25	// CommandLine::CommandLine - Constructor /{{{/
	26	// ---------------------------------------------------------------------
	27	/* */
	28	CommandLine::CommandLine(Args AList,Configuration Conf) : ArgList(AList),
	29	Conf(Conf), FileList(0)
	30	{
e1b74f61 AL	31	}
	32	/}}}/
	33	// CommandLine::~CommandLine - Destructor /{{{/
	34	// ---------------------------------------------------------------------
	35	/* */
	36	CommandLine::~CommandLine()
	37	{
	38	delete [] FileList;
08e8f724 AL	39	}
08e8f724 AL	40	/}}}/
b9179170 MV	41	// CommandLine::GetCommand - return the first non-option word /{{{/
	42	char const * CommandLine::GetCommand(Dispatch const * const Map,
	43	unsigned int const argc, char const * const * const argv)
	44	{
	45	// if there is a -- on the line there must be the word we search for around it
	46	// as -- marks the end of the options, just not sure if the command can be
	47	// considered an option or not, so accept both
	48	for (size_t i = 1; i < argc; ++i)
	49	{
	50	if (strcmp(argv[i], "--") != 0)
	51	continue;
	52	++i;
	53	if (i < argc)
	54	for (size_t j = 0; Map[j].Match != NULL; ++j)
	55	if (strcmp(argv[i], Map[j].Match) == 0)
	56	return Map[j].Match;
	57	i -= 2;
	58	if (i != 0)
	59	for (size_t j = 0; Map[j].Match != NULL; ++j)
	60	if (strcmp(argv[i], Map[j].Match) == 0)
	61	return Map[j].Match;
	62	return NULL;
	63	}
	64	// no --, so search for the first word matching a command
	65	// FIXME: How like is it that an option parameter will be also a valid Match ?
	66	for (size_t i = 1; i < argc; ++i)
	67	{
	68	if (*(argv[i]) == '-')
	69	continue;
	70	for (size_t j = 0; Map[j].Match != NULL; ++j)
	71	if (strcmp(argv[i], Map[j].Match) == 0)
	72	return Map[j].Match;
	73	}
	74	return NULL;
	75	}
	76	/}}}/
08e8f724 AL	77	// CommandLine::Parse - Main action member /{{{/
	78	// ---------------------------------------------------------------------
	79	/* */
	80	bool CommandLine::Parse(int argc,const char **argv)
	81	{
e1b74f61	82	delete [] FileList;
08e8f724 AL	83	FileList = new const char *[argc];
	84	const char **Files = FileList;
	85	int I;
	86	for (I = 1; I != argc; I++)
	87	{
	88	const char *Opt = argv[I];
	89
	90	// It is not an option
	91	if (*Opt != '-')
	92	{
	93	*Files++ = Opt;
	94	continue;
	95	}
	96
	97	Opt++;
	98
	99	// Double dash signifies the end of option processing
	100	if (*Opt == '-' && Opt[1] == 0)
343bd48e AL	101	{
343bd48e AL	102	I++;
08e8f724	103	break;
343bd48e	104	}
08e8f724 AL	105
	106	// Single dash is a short option
	107	if (*Opt != '-')
	108	{
	109	// Iterate over each letter
	110	while (*Opt != 0)
	111	{
	112	// Search for the option
	113	Args *A;
	114	for (A = ArgList; A->end() == false && A->ShortOpt != *Opt; A++);
	115	if (A->end() == true)
b2e465d6	116	return _error->Error(_("Command line option '%c' [from %s] is not known."),*Opt,argv[I]);
08e8f724 AL	117
	118	if (HandleOpt(I,argc,argv,Opt,A) == false)
	119	return false;
	120	if (*Opt != 0)
	121	Opt++;
	122	}
	123	continue;
	124	}
	125
	126	Opt++;
	127
	128	// Match up to a = against the list
08e8f724	129	Args *A;
404528bd	130	const char *OptEnd = strchrnul(Opt, '=');
ae2be086 DH	131	for (A = ArgList; A->end() == false &&
	132	(A->LongOpt == 0 \|\| stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
	133	++A);
08e8f724 AL	134
08e8f724 AL	135	// Failed, look for a word after the first - (no-foo)
0d47bd08	136	bool PreceedMatch = false;
08e8f724 AL	137	if (A->end() == true)
08e8f724 AL	138	{
404528bd DK	139	Opt = (const char*) memchr(Opt, '-', OptEnd - Opt);
404528bd DK	140	if (Opt == NULL)
b2e465d6	141	return _error->Error(_("Command line option %s is not understood"),argv[I]);
08e8f724 AL	142	Opt++;
	143
	144	for (A = ArgList; A->end() == false &&
7a6d9076 DK	145	(A->LongOpt == 0 \|\| stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
7a6d9076 DK	146	++A);
08e8f724 AL	147
	148	// Failed again..
	149	if (A->end() == true && OptEnd - Opt != 1)
b2e465d6	150	return _error->Error(_("Command line option %s is not understood"),argv[I]);
0d47bd08	151
08e8f724	152	// The option could be a single letter option prefixed by a no-..
08e8f724	153	if (A->end() == true)
0d47bd08 AL	154	{
	155	for (A = ArgList; A->end() == false && A->ShortOpt != *Opt; A++);
	156
	157	if (A->end() == true)
b2e465d6	158	return _error->Error(_("Command line option %s is not understood"),argv[I]);
0d47bd08	159	}
e1b74f61 AL	160
	161	// The option is not boolean
	162	if (A->IsBoolean() == false)
b2e465d6	163	return _error->Error(_("Command line option %s is not boolean"),argv[I]);
0d47bd08	164	PreceedMatch = true;
08e8f724 AL	165	}
	166
	167	// Deal with it.
	168	OptEnd--;
0d47bd08	169	if (HandleOpt(I,argc,argv,OptEnd,A,PreceedMatch) == false)
08e8f724 AL	170	return false;
	171	}
	172
	173	// Copy any remaining file names over
	174	for (; I != argc; I++)
	175	*Files++ = argv[I];
	176	*Files = 0;
2bb25574 DK	177
	178	SaveInConfig(argc, argv);
	179
08e8f724 AL	180	return true;
	181	}
	182	/}}}/
	183	// CommandLine::HandleOpt - Handle a single option including all flags /{{{/
	184	// ---------------------------------------------------------------------
	185	/* This is a helper function for parser, it looks at a given argument
	186	and looks for specific patterns in the string, it gets tokanized
	187	-ruffly- like -[yes\|true\|enable]-(o\|longopt)[=][ ][argument] /
	188	bool CommandLine::HandleOpt(int &I,int argc,const char *argv[],
0d47bd08	189	const char &Opt,Args A,bool PreceedMatch)
08e8f724 AL	190	{
	191	const char *Argument = 0;
	192	bool CertainArg = false;
	193	int IncI = 0;
	194
	195	/* Determine the possible location of an option or 0 if their is
	196	no option */
	197	if (Opt[1] == 0 \|\| (Opt[1] == '=' && Opt[2] == 0))
	198	{
	199	if (I + 1 < argc && argv[I+1][0] != '-')
	200	Argument = argv[I+1];
	201
	202	// Equals was specified but we fell off the end!
	203	if (Opt[1] == '=' && Argument == 0)
b2e465d6	204	return _error->Error(_("Option %s requires an argument."),argv[I]);
08e8f724 AL	205	if (Opt[1] == '=')
	206	CertainArg = true;
	207
	208	IncI = 1;
	209	}
	210	else
	211	{
	212	if (Opt[1] == '=')
	213	{
	214	CertainArg = true;
	215	Argument = Opt + 2;
	216	}
	217	else
	218	Argument = Opt + 1;
	219	}
0d47bd08	220
08e8f724 AL	221	// Option is an argument set
	222	if ((A->Flags & HasArg) == HasArg)
	223	{
	224	if (Argument == 0)
b2e465d6	225	return _error->Error(_("Option %s requires an argument."),argv[I]);
08e8f724 AL	226	Opt += strlen(Opt);
	227	I += IncI;
	228
	229	// Parse a configuration file
	230	if ((A->Flags & ConfigFile) == ConfigFile)
	231	return ReadConfigFile(*Conf,Argument);
e1b74f61	232
0da8987a	233	// Arbitrary item specification
e1b74f61 AL	234	if ((A->Flags & ArbItem) == ArbItem)
e1b74f61 AL	235	{
404528bd DK	236	const char *J = strchr(Argument, '=');
404528bd DK	237	if (J == NULL)
bac2e715	238	return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);
e1b74f61	239
7e798dd7 AL	240	// = is trailing
	241	if (J[1] == 0)
	242	{
	243	if (I+1 >= argc)
bac2e715	244	return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);
7e798dd7 AL	245	Conf->Set(string(Argument,J-Argument),string(argv[I++ +1]));
	246	}
	247	else
	248	Conf->Set(string(Argument,J-Argument),string(J+1));
e1b74f61 AL	249
	250	return true;
	251	}
08e8f724	252
404528bd	253	const char *I = strchrnul(A->ConfName, ' ');
7f25bdff AL	254	if (*I == ' ')
	255	Conf->Set(string(A->ConfName,0,I-A->ConfName),string(I+1) + Argument);
	256	else
	257	Conf->Set(A->ConfName,string(I) + Argument);
	258
08e8f724 AL	259	return true;
	260	}
	261
	262	// Option is an integer level
	263	if ((A->Flags & IntLevel) == IntLevel)
	264	{
	265	// There might be an argument
	266	if (Argument != 0)
	267	{
	268	char *EndPtr;
	269	unsigned long Value = strtol(Argument,&EndPtr,10);
	270
	271	// Conversion failed and the argument was specified with an =s
	272	if (EndPtr == Argument && CertainArg == true)
b2e465d6	273	return _error->Error(_("Option %s requires an integer argument, not '%s'"),argv[I],Argument);
08e8f724 AL	274
08e8f724 AL	275	// Conversion was ok, set the value and return
9435cc9b	276	if (EndPtr != 0 && EndPtr != Argument && *EndPtr == 0)
08e8f724 AL	277	{
	278	Conf->Set(A->ConfName,Value);
	279	Opt += strlen(Opt);
	280	I += IncI;
	281	return true;
	282	}
	283	}
	284
	285	// Increase the level
	286	Conf->Set(A->ConfName,Conf->FindI(A->ConfName)+1);
	287	return true;
	288	}
	289
	290	// Option is a boolean
	291	int Sense = -1; // -1 is unspecified, 0 is yes 1 is no
	292
	293	// Look for an argument.
	294	while (1)
	295	{
1e3f4083	296	// Look at preceding text
08e8f724 AL	297	char Buffer[300];
	298	if (Argument == 0)
	299	{
0d47bd08 AL	300	if (PreceedMatch == false)
	301	break;
	302
08e8f724	303	if (strlen(argv[I]) >= sizeof(Buffer))
b2e465d6	304	return _error->Error(_("Option '%s' is too long"),argv[I]);
0d47bd08 AL	305
0d47bd08 AL	306	// Skip the leading dash
08e8f724 AL	307	const char *J = argv[I];
08e8f724 AL	308	for (; J != 0 && J == '-'; J++);
404528bd DK	309
	310	const char *JEnd = strchr(J, '-');
	311	if (JEnd != NULL)
08e8f724 AL	312	{
	313	strncpy(Buffer,J,JEnd - J);
	314	Buffer[JEnd - J] = 0;
	315	Argument = Buffer;
	316	CertainArg = true;
	317	}
	318	else
	319	break;
	320	}
	321
3b5421b4 AL	322	// Check for boolean
	323	Sense = StringToBool(Argument);
	324	if (Sense >= 0)
08e8f724	325	{
08e8f724 AL	326	// Eat the argument
	327	if (Argument != Buffer)
	328	{
	329	Opt += strlen(Opt);
	330	I += IncI;
	331	}
	332	break;
	333	}
	334
08e8f724	335	if (CertainArg == true)
b2e465d6	336	return _error->Error(_("Sense %s is not understood, try true or false."),Argument);
08e8f724 AL	337
	338	Argument = 0;
	339	}
	340
	341	// Indeterminate sense depends on the flag
	342	if (Sense == -1)
	343	{
	344	if ((A->Flags & InvBoolean) == InvBoolean)
	345	Sense = 0;
	346	else
	347	Sense = 1;
	348	}
	349
	350	Conf->Set(A->ConfName,Sense);
	351	return true;
	352	}
	353	/}}}/
bc4af0b9	354	// CommandLine::FileSize - Count the number of filenames /{{{/
e1b74f61 AL	355	// ---------------------------------------------------------------------
	356	/* */
	357	unsigned int CommandLine::FileSize() const
	358	{
	359	unsigned int Count = 0;
	360	for (const char *I = FileList; I != 0 && I != 0; I++)
	361	Count++;
	362	return Count;
	363	}
	364	/}}}/
bc4af0b9 AL	365	// CommandLine::DispatchArg - Do something with the first arg /{{{/
	366	// ---------------------------------------------------------------------
	367	/* */
b0b4efb9	368	bool CommandLine::DispatchArg(Dispatch *Map,bool NoMatch)
bc4af0b9 AL	369	{
	370	int I;
	371	for (I = 0; Map[I].Match != 0; I++)
	372	{
	373	if (strcmp(FileList[0],Map[I].Match) == 0)
	374	{
	375	bool Res = Map[I].Handler(*this);
	376	if (Res == false && _error->PendingError() == false)
	377	_error->Error("Handler silently failed");
	378	return Res;
	379	}
	380	}
	381
	382	// No matching name
	383	if (Map[I].Match == 0)
b0b4efb9 AL	384	{
b0b4efb9 AL	385	if (NoMatch == true)
b2e465d6	386	_error->Error(_("Invalid operation %s"),FileList[0]);
b0b4efb9 AL	387	}
b0b4efb9 AL	388
bc4af0b9 AL	389	return false;
	390	}
	391	/}}}/
2bb25574 DK	392	// CommandLine::SaveInConfig - for output later in a logfile or so /{{{/
	393	// ---------------------------------------------------------------------
	394	/* We save the commandline here to have it around later for e.g. logging.
	395	It feels a bit like a hack here and isn't bulletproof, but it is better
	396	than nothing after all. */
	397	void CommandLine::SaveInConfig(unsigned int const &argc, char const * const * const argv)
	398	{
093e9f5d	399	char cmdline[100 + argc * 50];
70e0c168	400	memset(cmdline, 0, sizeof(cmdline));
2bb25574 DK	401	unsigned int length = 0;
	402	bool lastWasOption = false;
	403	bool closeQuote = false;
093e9f5d	404	for (unsigned int i = 0; i < argc && length < sizeof(cmdline); ++i, ++length)
2bb25574 DK	405	{
	406	for (unsigned int j = 0; argv[i][j] != '\0' && length < sizeof(cmdline)-1; ++j, ++length)
	407	{
	408	cmdline[length] = argv[i][j];
	409	if (lastWasOption == true && argv[i][j] == '=')
	410	{
	411	// That is possibly an option: Quote it if it includes spaces,
	412	// the benefit is that this will eliminate also most false positives
404528bd DK	413	const char* c = strchr(&argv[i][j+1], ' ');
404528bd DK	414	if (c == NULL) continue;
2bb25574 DK	415	cmdline[++length] = '"';
	416	closeQuote = true;
	417	}
	418	}
	419	if (closeQuote == true)
	420	cmdline[length++] = '"';
	421	// Problem: detects also --hello
	422	if (cmdline[length-1] == 'o')
	423	lastWasOption = true;
	424	cmdline[length] = ' ';
	425	}
	426	cmdline[--length] = '\0';
	427	_config->Set("CommandLine::AsString", cmdline);
	428	}
	429	/}}}/
b9179170 MV	430	CommandLine::Args CommandLine::MakeArgs(char ShortOpt, char const LongOpt, char const ConfName, unsigned long Flags)/{{{/
	431	{
	432	/* In theory, this should be a constructor for CommandLine::Args instead,
	433	but this breaks compatibility as gcc thinks this is a c++11 initializer_list */
	434	CommandLine::Args arg;
	435	arg.ShortOpt = ShortOpt;
	436	arg.LongOpt = LongOpt;
	437	arg.ConfName = ConfName;
	438	arg.Flags = Flags;
	439	return arg;
	440	}
	441	/}}}/