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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: configuration.cc,v 1.10 1998/11/05 07:21:43 jgg Exp $
/* ######################################################################

   Configuration Class
   
   This class provides a configuration file and command line parser
   for a tree-oriented configuration environment. All runtime configuration
   is stored in here.
   
   ##################################################################### */
									/*}}}*/
// Include files							/*{{{*/
#ifdef __GNUG__
#pragma implementation "apt-pkg/configuration.h"
#endif
#include <apt-pkg/configuration.h>
#include <apt-pkg/error.h>
#include <strutl.h>

#include <stdio.h>
#include <fstream.h>
									/*}}}*/

Configuration *_config = new Configuration;

// Configuration::Configuration - Constructor				/*{{{*/
// ---------------------------------------------------------------------
/* */
Configuration::Configuration()
{
   Root = new Item;
}
									/*}}}*/
// Configuration::Lookup - Lookup a single item				/*{{{*/
// ---------------------------------------------------------------------
/* This will lookup a single item by name below another item. It is a 
   helper function for the main lookup function */
Configuration::Item *Configuration::Lookup(Item *Head,const char *S,
					   unsigned long Len,bool Create)
{
   int Res = 1;
   Item *I = Head->Child;
   Item **Last = &Head->Child;
   for (; I != 0; Last = &I->Next, I = I->Next)
      if ((Res = stringcasecmp(I->Tag.begin(),I->Tag.end(),S,S + Len)) == 0)
	 break;
   
   if (Res == 0)
      return I;
   if (Create == false)
      return 0;
   
   I = new Item;
   I->Tag = string(S,Len);
   I->Next = *Last;
   I->Parent = Head;
   *Last = I;
   return I;
}
									/*}}}*/
// Configuration::Lookup - Lookup a fully scoped item			/*{{{*/
// ---------------------------------------------------------------------
/* This performs a fully scoped lookup of a given name, possibly creating
   new items */
Configuration::Item *Configuration::Lookup(const char *Name,bool Create)
{
   if (Name == 0)
      return Root->Child;
   
   const char *Start = Name;
   const char *End = Start + strlen(Name);
   const char *TagEnd = Name;
   Item *Itm = Root;
   for (; End - TagEnd > 2; TagEnd++)
   {
      if (TagEnd[0] == ':' && TagEnd[1] == ':')
      {
	 Itm = Lookup(Itm,Start,TagEnd - Start,Create);
	 if (Itm == 0)
	    return 0;
	 TagEnd = Start = TagEnd + 2;	 
      }
   }   

   Itm = Lookup(Itm,Start,End - Start,Create);
   return Itm;
}
									/*}}}*/
// Configuration::Find - Find a value					/*{{{*/
// ---------------------------------------------------------------------
/* */
string Configuration::Find(const char *Name,const char *Default)
{
   Item *Itm = Lookup(Name,false);
   if (Itm == 0 || Itm->Value.empty() == true)
   {
      if (Default == 0)
	 return string();
      else
	 return Default;
   }
   
   return Itm->Value;
}
									/*}}}*/
// Configuration::FindFile - Find a Filename				/*{{{*/
// ---------------------------------------------------------------------
/* Directories are stored as the base dir in the Parent node and the
   sub directory in sub nodes with the final node being the end filename
 */
string Configuration::FindFile(const char *Name,const char *Default)
{
   Item *Itm = Lookup(Name,false);
   if (Itm == 0 || Itm->Value.empty() == true)
   {
      if (Default == 0)
	 return string();
      else
	 return Default;
   }
   
   // Absolute path
   if (Itm->Value[0] == '/' || Itm->Parent == 0)
      return Itm->Value;
   
   // ./ is also considered absolute as is anything with ~ in it
   if (Itm->Value[0] != 0 && 
       ((Itm->Value[0] == '.' && Itm->Value[1] == '/') ||
	(Itm->Value[0] == '~' && Itm->Value[1] == '/')))
      return Itm->Value;
   
   if (Itm->Parent->Value.end()[-1] == '/')
      return Itm->Parent->Value + Itm->Value;
   else
      return Itm->Parent->Value + '/' + Itm->Value;
}
									/*}}}*/
// Configuration::FindDir - Find a directory name			/*{{{*/
// ---------------------------------------------------------------------
/* This is like findfile execept the result is terminated in a / */
string Configuration::FindDir(const char *Name,const char *Default)
{
   string Res = FindFile(Name,Default);
   if (Res.end()[-1] != '/')
      return Res + '/';
   return Res;
}
									/*}}}*/
// Configuration::FindI - Find an integer value				/*{{{*/
// ---------------------------------------------------------------------
/* */
int Configuration::FindI(const char *Name,int Default)
{
   Item *Itm = Lookup(Name,false);
   if (Itm == 0 || Itm->Value.empty() == true)
      return Default;
   
   char *End;
   int Res = strtol(Itm->Value.c_str(),&End,0);
   if (End == Itm->Value.c_str())
      return Default;
   
   return Res;
}
									/*}}}*/
// Configuration::FindB - Find a boolean type				/*{{{*/
// ---------------------------------------------------------------------
/* */
bool Configuration::FindB(const char *Name,bool Default)
{
   Item *Itm = Lookup(Name,false);
   if (Itm == 0 || Itm->Value.empty() == true)
      return Default;
   
   return StringToBool(Itm->Value,Default);
}
									/*}}}*/
// Configuration::Set - Set a value					/*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Set(const char *Name,string Value)
{
   Item *Itm = Lookup(Name,true);
   if (Itm == 0)
      return;
   Itm->Value = Value;
}
									/*}}}*/
// Configuration::Set - Set an integer value				/*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Set(const char *Name,int Value)
{
   Item *Itm = Lookup(Name,true);
   if (Itm == 0)
      return;
   char S[300];
   snprintf(S,sizeof(S),"%i",Value);
   Itm->Value = S;
}
									/*}}}*/
// Configuration::Exists - Returns true if the Name exists		/*{{{*/
// ---------------------------------------------------------------------
/* */
bool Configuration::Exists(const char *Name)
{
   Item *Itm = Lookup(Name,false);
   if (Itm == 0)
      return false;
   return true;
}
									/*}}}*/
// Configuration::Dump - Dump the config				/*{{{*/
// ---------------------------------------------------------------------
/* Dump the entire configuration space */
void Configuration::Dump()
{
   /* Write out all of the configuration directives by walking the 
      configuration tree */
   const Configuration::Item *Top = _config->Tree(0);
   for (; Top != 0;)
   {
      clog << Top->FullTag() << " \"" << Top->Value << "\";" << endl;
      
      if (Top->Child != 0)
      {
	 Top = Top->Child;
	 continue;
      }
      
      while (Top != 0 && Top->Next == 0)
	 Top = Top->Parent;
      if (Top != 0)
	 Top = Top->Next;
   }   
}
									/*}}}*/

// Configuration::Item::FullTag - Return the fully scoped tag		/*{{{*/
// ---------------------------------------------------------------------
/* */
string Configuration::Item::FullTag() const
{
   if (Parent == 0 || Parent->Parent == 0)
      return Tag;
   return Parent->FullTag() + "::" + Tag;
}
									/*}}}*/

// ReadConfigFile - Read a configuration file				/*{{{*/
// ---------------------------------------------------------------------
/* The configuration format is very much like the named.conf format
   used in bind8, in fact this routine can parse most named.conf files. */
bool ReadConfigFile(Configuration &Conf,string FName)
{
   // Open the stream for reading
   ifstream F(FName.c_str(),ios::in | ios::nocreate);
   if (!F != 0)
      return _error->Errno("ifstream::ifstream","Opening configuration file %s",FName.c_str());
   
   char Buffer[300];
   string LineBuffer;
   
   // Parser state
   string ParentTag;
   
   int CurLine = 0;
   bool InComment = false;
   while (F.eof() == false)
   {
      F.getline(Buffer,sizeof(Buffer));
      CurLine++;
      _strtabexpand(Buffer,sizeof(Buffer));
      _strstrip(Buffer);

      // Multi line comment
      if (InComment == true)
      {
	 for (const char *I = Buffer; *I != 0; I++)
	 {
	    if (*I == '*' && I[1] == '/')
	    {
	       memmove(Buffer,I+2,strlen(I+2) + 1);
	       InComment = false;
	       break;
	    }	    
	 }
	 if (InComment == true)
	    continue;
      }
      
      // Discard single line comments
      bool InQuote = false;
      for (char *I = Buffer; *I != 0; I++)
      {
	 if (*I == '"')
	    InQuote = !InQuote;
	 if (InQuote == true)
	    continue;
	 
	 if (*I == '/' && I[1] == '/')
         {
	    *I = 0;
	    break;
	 }
      }
      
      // Look for multi line comments
      for (char *I = Buffer; *I != 0; I++)
      {
	 if (*I == '"')
	    InQuote = !InQuote;
	 if (InQuote == true)
	    continue;
	 
	 if (*I == '/' && I[1] == '*')
         {
	    InComment = true;
	    for (char *J = Buffer; *J != 0; J++)
	    {
	       if (*J == '*' && J[1] == '/')
	       {
		  memmove(I,J+2,strlen(J+2) + 1);
		  InComment = false;
		  break;
	       }	       
	    }
	    
	    if (InComment == true)
	    {
	       *I = 0;
	       break;
	    }	    
	 }
      }
      
      // Blank
      if (Buffer[0] == 0)
	 continue;
      
      // We now have a valid line fragment
      for (char *I = Buffer; *I != 0;)
      {
	 if (*I == '{' || *I == ';' || *I == '}')
	 {
	    // Put the last fragement into the buffer
	    char *Start = Buffer;
	    char *Stop = I;
	    for (; Start != I && isspace(*Start) != 0; Start++);
	    for (; Stop != Start && isspace(Stop[-1]) != 0; Stop--);
	    if (LineBuffer.empty() == false && Stop - Start != 0)
	       LineBuffer += ' ';
	    LineBuffer += string(Start,Stop - Start);
	    
	    // Remove the fragment
	    char TermChar = *I;
	    memmove(Buffer,I + 1,strlen(I + 1) + 1);
	    I = Buffer;

	    // Move up a tag
	    if (TermChar == '}')
	    {
	       string::size_type Pos = ParentTag.rfind("::");
	       if (Pos == string::npos)
		  ParentTag = string();
	       else
		  ParentTag = string(ParentTag,0,Pos);
	    }
	    
	    // Syntax Error
	    if (TermChar == '{' && LineBuffer.empty() == true)
	       return _error->Error("Syntax error %s:%u: Block starts with no name.",FName.c_str(),CurLine);
	    
	    if (LineBuffer.empty() == true)
	       continue;

	    // Parse off the tag
	    string::size_type Pos = LineBuffer.find(' ');
	    if (Pos == string::npos)
	    {
	       if (TermChar == '{')
		  Pos = LineBuffer.length();
	       else
		  return _error->Error("Syntax error %s:%u: Tag with no value",FName.c_str(),CurLine);
	    }
	    
	    string Tag = string(LineBuffer,0,Pos);

	    // Go down a level
	    if (TermChar == '{')
	    {
	       if (ParentTag.empty() == true)
		  ParentTag = Tag;
	       else
		  ParentTag += string("::") + Tag;
	       Tag = string();
	    }

	    // We dont have a value to set
	    if (Pos == LineBuffer.length())
	    {
	       LineBuffer = string();
	       continue;
	    }
	    
	    // Parse off the word
	    string Word;
	    if (ParseCWord(LineBuffer.c_str()+Pos,Word) == false)
	       return _error->Error("Syntax error %s:%u: Malformed value",FName.c_str(),CurLine);
	    
	    // Generate the item name
	    string Item;
	    if (ParentTag.empty() == true)
	       Item = Tag;
	    else
	    {
	       if (Tag.empty() == true)
		  Item = ParentTag;
	       else
		  Item = ParentTag + "::" + Tag;
	    }
	    
	    // Set the item in the configuration class
	    Conf.Set(Item,Word);
			    
	    // Empty the buffer
	    LineBuffer = string();
	 }
	 else
	    I++;
      }

      // Store the fragment
      const char *Stripd = _strstrip(Buffer);
      if (*Stripd != 0 && LineBuffer.empty() == false)
	 LineBuffer += " ";
      LineBuffer += Stripd;
   }
   
   return true;
}
									/*}}}*/
Commit	Line	Data
6c139d6e AL	1	// -- mode: cpp; mode: fold --
6c139d6e AL	2	// Description /{{{/
bfd22fc0	3	// $Id: configuration.cc,v 1.10 1998/11/05 07:21:43 jgg Exp $
6c139d6e AL	4	/* ######################################################################
	5
	6	Configuration Class
	7
	8	This class provides a configuration file and command line parser
	9	for a tree-oriented configuration environment. All runtime configuration
	10	is stored in here.
	11
	12	##################################################################### */
	13	/}}}/
	14	// Include files /{{{/
	15	#ifdef __GNUG__
094a497d	16	#pragma implementation "apt-pkg/configuration.h"
6c139d6e	17	#endif
094a497d	18	#include <apt-pkg/configuration.h>
08e8f724	19	#include <apt-pkg/error.h>
6c139d6e AL	20	#include <strutl.h>
	21
	22	#include <stdio.h>
08e8f724	23	#include <fstream.h>
6c139d6e	24	/}}}/
9c14e3d6 AL	25
9c14e3d6 AL	26	Configuration *_config = new Configuration;
6c139d6e AL	27
	28	// Configuration::Configuration - Constructor /{{{/
	29	// ---------------------------------------------------------------------
	30	/* */
	31	Configuration::Configuration()
	32	{
	33	Root = new Item;
	34	}
	35	/}}}/
0a8a80e5	36	// Configuration::Lookup - Lookup a single item /{{{/
6c139d6e AL	37	// ---------------------------------------------------------------------
	38	/* This will lookup a single item by name below another item. It is a
	39	helper function for the main lookup function */
	40	Configuration::Item Configuration::Lookup(Item Head,const char *S,
	41	unsigned long Len,bool Create)
	42	{
	43	int Res = 1;
	44	Item *I = Head->Child;
	45	Item **Last = &Head->Child;
	46	for (; I != 0; Last = &I->Next, I = I->Next)
9c14e3d6	47	if ((Res = stringcasecmp(I->Tag.begin(),I->Tag.end(),S,S + Len)) == 0)
6c139d6e	48	break;
9c14e3d6	49
6c139d6e AL	50	if (Res == 0)
	51	return I;
	52	if (Create == false)
	53	return 0;
	54
	55	I = new Item;
9c14e3d6	56	I->Tag = string(S,Len);
6c139d6e	57	I->Next = *Last;
9c14e3d6	58	I->Parent = Head;
6c139d6e AL	59	*Last = I;
	60	return I;
	61	}
	62	/}}}/
	63	// Configuration::Lookup - Lookup a fully scoped item /{{{/
	64	// ---------------------------------------------------------------------
	65	/* This performs a fully scoped lookup of a given name, possibly creating
	66	new items */
	67	Configuration::Item Configuration::Lookup(const char Name,bool Create)
	68	{
0a8a80e5 AL	69	if (Name == 0)
	70	return Root->Child;
	71
6c139d6e AL	72	const char *Start = Name;
	73	const char *End = Start + strlen(Name);
	74	const char *TagEnd = Name;
	75	Item *Itm = Root;
	76	for (; End - TagEnd > 2; TagEnd++)
	77	{
	78	if (TagEnd[0] == ':' && TagEnd[1] == ':')
	79	{
	80	Itm = Lookup(Itm,Start,TagEnd - Start,Create);
	81	if (Itm == 0)
	82	return 0;
	83	TagEnd = Start = TagEnd + 2;
	84	}
	85	}
	86
	87	Itm = Lookup(Itm,Start,End - Start,Create);
6c139d6e AL	88	return Itm;
	89	}
	90	/}}}/
	91	// Configuration::Find - Find a value /{{{/
	92	// ---------------------------------------------------------------------
	93	/* */
	94	string Configuration::Find(const char Name,const char Default)
	95	{
	96	Item *Itm = Lookup(Name,false);
	97	if (Itm == 0 \|\| Itm->Value.empty() == true)
9c14e3d6 AL	98	{
	99	if (Default == 0)
	100	return string();
	101	else
	102	return Default;
	103	}
	104
6c139d6e AL	105	return Itm->Value;
	106	}
	107	/}}}/
3b5421b4	108	// Configuration::FindFile - Find a Filename /{{{/
9c14e3d6 AL	109	// ---------------------------------------------------------------------
9c14e3d6 AL	110	/* Directories are stored as the base dir in the Parent node and the
3b5421b4	111	sub directory in sub nodes with the final node being the end filename
9c14e3d6	112	*/
3b5421b4	113	string Configuration::FindFile(const char Name,const char Default)
9c14e3d6 AL	114	{
	115	Item *Itm = Lookup(Name,false);
	116	if (Itm == 0 \|\| Itm->Value.empty() == true)
	117	{
	118	if (Default == 0)
	119	return string();
	120	else
	121	return Default;
	122	}
	123
0a8e3465	124	// Absolute path
9c14e3d6 AL	125	if (Itm->Value[0] == '/' \|\| Itm->Parent == 0)
9c14e3d6 AL	126	return Itm->Value;
0a8e3465 AL	127
	128	// ./ is also considered absolute as is anything with ~ in it
	129	if (Itm->Value[0] != 0 &&
	130	((Itm->Value[0] == '.' && Itm->Value[1] == '/') \|\|
	131	(Itm->Value[0] == '~' && Itm->Value[1] == '/')))
	132	return Itm->Value;
	133
9c14e3d6 AL	134	if (Itm->Parent->Value.end()[-1] == '/')
	135	return Itm->Parent->Value + Itm->Value;
	136	else
	137	return Itm->Parent->Value + '/' + Itm->Value;
	138	}
	139	/}}}/
3b5421b4 AL	140	// Configuration::FindDir - Find a directory name /{{{/
	141	// ---------------------------------------------------------------------
	142	/* This is like findfile execept the result is terminated in a / */
	143	string Configuration::FindDir(const char Name,const char Default)
	144	{
	145	string Res = FindFile(Name,Default);
	146	if (Res.end()[-1] != '/')
	147	return Res + '/';
	148	return Res;
	149	}
	150	/}}}/
6c139d6e AL	151	// Configuration::FindI - Find an integer value /{{{/
	152	// ---------------------------------------------------------------------
	153	/* */
	154	int Configuration::FindI(const char *Name,int Default)
	155	{
	156	Item *Itm = Lookup(Name,false);
	157	if (Itm == 0 \|\| Itm->Value.empty() == true)
	158	return Default;
	159
	160	char *End;
	161	int Res = strtol(Itm->Value.c_str(),&End,0);
	162	if (End == Itm->Value.c_str())
	163	return Default;
	164
08e8f724 AL	165	return Res;
	166	}
	167	/}}}/
	168	// Configuration::FindB - Find a boolean type /{{{/
	169	// ---------------------------------------------------------------------
	170	/* */
	171	bool Configuration::FindB(const char *Name,bool Default)
	172	{
	173	Item *Itm = Lookup(Name,false);
	174	if (Itm == 0 \|\| Itm->Value.empty() == true)
	175	return Default;
	176
3b5421b4	177	return StringToBool(Itm->Value,Default);
6c139d6e AL	178	}
	179	/}}}/
	180	// Configuration::Set - Set a value /{{{/
	181	// ---------------------------------------------------------------------
	182	/* */
	183	void Configuration::Set(const char *Name,string Value)
	184	{
	185	Item *Itm = Lookup(Name,true);
	186	if (Itm == 0)
	187	return;
	188	Itm->Value = Value;
	189	}
	190	/}}}/
	191	// Configuration::Set - Set an integer value /{{{/
	192	// ---------------------------------------------------------------------
	193	/* */
	194	void Configuration::Set(const char *Name,int Value)
	195	{
	196	Item *Itm = Lookup(Name,true);
	197	if (Itm == 0)
	198	return;
	199	char S[300];
	200	snprintf(S,sizeof(S),"%i",Value);
	201	Itm->Value = S;
	202	}
	203	/}}}/
08e8f724 AL	204	// Configuration::Exists - Returns true if the Name exists /{{{/
	205	// ---------------------------------------------------------------------
	206	/* */
	207	bool Configuration::Exists(const char *Name)
	208	{
	209	Item *Itm = Lookup(Name,false);
	210	if (Itm == 0)
	211	return false;
	212	return true;
	213	}
	214	/}}}/
93bf083d AL	215	// Configuration::Dump - Dump the config /{{{/
	216	// ---------------------------------------------------------------------
	217	/* Dump the entire configuration space */
	218	void Configuration::Dump()
	219	{
	220	/* Write out all of the configuration directives by walking the
	221	configuration tree */
	222	const Configuration::Item *Top = _config->Tree(0);
	223	for (; Top != 0;)
	224	{
	225	clog << Top->FullTag() << " \"" << Top->Value << "\";" << endl;
	226
	227	if (Top->Child != 0)
	228	{
	229	Top = Top->Child;
	230	continue;
	231	}
	232
	233	while (Top != 0 && Top->Next == 0)
	234	Top = Top->Parent;
	235	if (Top != 0)
	236	Top = Top->Next;
	237	}
	238	}
	239	/}}}/
08e8f724	240
0a8a80e5 AL	241	// Configuration::Item::FullTag - Return the fully scoped tag /{{{/
	242	// ---------------------------------------------------------------------
	243	/* */
	244	string Configuration::Item::FullTag() const
	245	{
	246	if (Parent == 0 \|\| Parent->Parent == 0)
	247	return Tag;
	248	return Parent->FullTag() + "::" + Tag;
	249	}
	250	/}}}/
	251
08e8f724 AL	252	// ReadConfigFile - Read a configuration file /{{{/
	253	// ---------------------------------------------------------------------
	254	/* The configuration format is very much like the named.conf format
	255	used in bind8, in fact this routine can parse most named.conf files. */
	256	bool ReadConfigFile(Configuration &Conf,string FName)
	257	{
	258	// Open the stream for reading
	259	ifstream F(FName.c_str(),ios::in \| ios::nocreate);
	260	if (!F != 0)
	261	return _error->Errno("ifstream::ifstream","Opening configuration file %s",FName.c_str());
	262
	263	char Buffer[300];
	264	string LineBuffer;
	265
	266	// Parser state
	267	string ParentTag;
	268
	269	int CurLine = 0;
	270	bool InComment = false;
	271	while (F.eof() == false)
	272	{
	273	F.getline(Buffer,sizeof(Buffer));
	274	CurLine++;
	275	_strtabexpand(Buffer,sizeof(Buffer));
	276	_strstrip(Buffer);
	277
	278	// Multi line comment
	279	if (InComment == true)
	280	{
	281	for (const char I = Buffer; I != 0; I++)
	282	{
	283	if (I == '' && I[1] == '/')
	284	{
	285	memmove(Buffer,I+2,strlen(I+2) + 1);
	286	InComment = false;
	287	break;
	288	}
	289	}
	290	if (InComment == true)
	291	continue;
	292	}
	293
	294	// Discard single line comments
bfd22fc0	295	bool InQuote = false;
08e8f724 AL	296	for (char I = Buffer; I != 0; I++)
08e8f724 AL	297	{
bfd22fc0 AL	298	if (*I == '"')
	299	InQuote = !InQuote;
	300	if (InQuote == true)
	301	continue;
	302
08e8f724 AL	303	if (*I == '/' && I[1] == '/')
	304	{
	305	*I = 0;
	306	break;
	307	}
	308	}
	309
	310	// Look for multi line comments
	311	for (char I = Buffer; I != 0; I++)
	312	{
bfd22fc0 AL	313	if (*I == '"')
	314	InQuote = !InQuote;
	315	if (InQuote == true)
	316	continue;
	317
08e8f724 AL	318	if (I == '/' && I[1] == '')
	319	{
	320	InComment = true;
	321	for (char J = Buffer; J != 0; J++)
	322	{
	323	if (J == '' && J[1] == '/')
	324	{
	325	memmove(I,J+2,strlen(J+2) + 1);
	326	InComment = false;
	327	break;
	328	}
	329	}
	330
	331	if (InComment == true)
	332	{
	333	*I = 0;
	334	break;
	335	}
	336	}
	337	}
	338
	339	// Blank
	340	if (Buffer[0] == 0)
	341	continue;
	342
	343	// We now have a valid line fragment
	344	for (char I = Buffer; I != 0;)
	345	{
	346	if (I == '{' \|\| I == ';' \|\| *I == '}')
	347	{
	348	// Put the last fragement into the buffer
	349	char *Start = Buffer;
	350	char *Stop = I;
	351	for (; Start != I && isspace(*Start) != 0; Start++);
	352	for (; Stop != Start && isspace(Stop[-1]) != 0; Stop--);
	353	if (LineBuffer.empty() == false && Stop - Start != 0)
	354	LineBuffer += ' ';
	355	LineBuffer += string(Start,Stop - Start);
	356
	357	// Remove the fragment
	358	char TermChar = *I;
	359	memmove(Buffer,I + 1,strlen(I + 1) + 1);
	360	I = Buffer;
	361
	362	// Move up a tag
	363	if (TermChar == '}')
	364	{
	365	string::size_type Pos = ParentTag.rfind("::");
	366	if (Pos == string::npos)
	367	ParentTag = string();
	368	else
	369	ParentTag = string(ParentTag,0,Pos);
	370	}
	371
	372	// Syntax Error
	373	if (TermChar == '{' && LineBuffer.empty() == true)
	374	return _error->Error("Syntax error %s:%u: Block starts with no name.",FName.c_str(),CurLine);
	375
	376	if (LineBuffer.empty() == true)
	377	continue;
	378
	379	// Parse off the tag
	380	string::size_type Pos = LineBuffer.find(' ');
	381	if (Pos == string::npos)
382	{
383	if (TermChar == '{')
384	Pos = LineBuffer.length();
385	else
386	return _error->Error("Syntax error %s:%u: Tag with no value",FName.c_str(),CurLine);
387	}
388
389	string Tag = string(LineBuffer,0,Pos);
390
391	// Go down a level
392	if (TermChar == '{')
393	{
394	if (ParentTag.empty() == true)
395	ParentTag = Tag;
396	else
397	ParentTag += string("::") + Tag;
398	Tag = string();
399	}
400
401	// We dont have a value to set
402	if (Pos == LineBuffer.length())
403	{
404	LineBuffer = string();
405	continue;
406	}
407
408	// Parse off the word
409	string Word;
410	if (ParseCWord(LineBuffer.c_str()+Pos,Word) == false)
411	return _error->Error("Syntax error %s:%u: Malformed value",FName.c_str(),CurLine);
bfd22fc0	412
08e8f724 AL	413	// Generate the item name
	414	string Item;
	415	if (ParentTag.empty() == true)
	416	Item = Tag;
	417	else
	418	{
	419	if (Tag.empty() == true)
	420	Item = ParentTag;
	421	else
	422	Item = ParentTag + "::" + Tag;
	423	}
	424
	425	// Set the item in the configuration class
	426	Conf.Set(Item,Word);
	427
	428	// Empty the buffer
	429	LineBuffer = string();
	430	}
	431	else
	432	I++;
	433	}
	434
	435	// Store the fragment
	436	const char *Stripd = _strstrip(Buffer);
	437	if (*Stripd != 0 && LineBuffer.empty() == false)
	438	LineBuffer += " ";
	439	LineBuffer += Stripd;
	440	}
	441
	442	return true;
	443	}
	444	/}}}/