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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: configuration.cc,v 1.28 2004/04/30 04:00:15 mdz 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.
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/error.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/macros.h>
#include <ctype.h>
#include <regex.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <algorithm>
#include <string>
#include <vector>
#include <fstream>
#include <apti18n.h>
using namespace std;
/*}}}*/
Configuration *_config = new Configuration;
// Configuration::Configuration - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
Configuration::Configuration() : ToFree(true)
{
Root = new Item;
}
Configuration::Configuration(const Item *Root) : Root((Item *)Root), ToFree(false)
{
}
/*}}}*/
// Configuration::~Configuration - Destructor /*{{{*/
// ---------------------------------------------------------------------
/* */
Configuration::~Configuration()
{
if (ToFree == false)
return;
Item *Top = Root;
for (; Top != 0;)
{
if (Top->Child != 0)
{
Top = Top->Child;
continue;
}
while (Top != 0 && Top->Next == 0)
{
Item *Parent = Top->Parent;
delete Top;
Top = Parent;
}
if (Top != 0)
{
Item *Next = Top->Next;
delete Top;
Top = Next;
}
}
}
/*}}}*/
// 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 const &Len,bool const &Create)
{
int Res = 1;
Item *I = Head->Child;
Item **Last = &Head->Child;
// Empty strings match nothing. They are used for lists.
if (Len != 0)
{
for (; I != 0; Last = &I->Next, I = I->Next)
if ((Res = stringcasecmp(I->Tag,S,S + Len)) == 0)
break;
}
else
for (; I != 0; Last = &I->Next, I = I->Next);
if (Res == 0)
return I;
if (Create == false)
return 0;
I = new Item;
I->Tag.assign(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 const &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;
}
}
// This must be a trailing ::, we create unique items in a list
if (End - Start == 0)
{
if (Create == false)
return 0;
}
Itm = Lookup(Itm,Start,End - Start,Create);
return Itm;
}
/*}}}*/
// Configuration::Find - Find a value /*{{{*/
// ---------------------------------------------------------------------
/* */
string Configuration::Find(const char *Name,const char *Default) const
{
const Item *Itm = Lookup(Name);
if (Itm == 0 || Itm->Value.empty() == true)
{
if (Default == 0)
return "";
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) const
{
const Item *RootItem = Lookup("RootDir");
std::string result = (RootItem == 0) ? "" : RootItem->Value;
if(result.empty() == false && result[result.size() - 1] != '/')
result.push_back('/');
const Item *Itm = Lookup(Name);
if (Itm == 0 || Itm->Value.empty() == true)
{
if (Default != 0)
result.append(Default);
}
else
{
string val = Itm->Value;
while (Itm->Parent != 0)
{
if (Itm->Parent->Value.empty() == true)
{
Itm = Itm->Parent;
continue;
}
// Absolute
if (val.length() >= 1 && val[0] == '/')
{
if (val.compare(0, 9, "/dev/null") == 0)
val.erase(9);
break;
}
// ~/foo or ./foo
if (val.length() >= 2 && (val[0] == '~' || val[0] == '.') && val[1] == '/')
break;
// ../foo
if (val.length() >= 3 && val[0] == '.' && val[1] == '.' && val[2] == '/')
break;
if (Itm->Parent->Value.end()[-1] != '/')
val.insert(0, "/");
val.insert(0, Itm->Parent->Value);
Itm = Itm->Parent;
}
result.append(val);
}
// do some normalisation by removing // and /./ from the path
size_t found = string::npos;
while ((found = result.find("/./")) != string::npos)
result.replace(found, 3, "/");
while ((found = result.find("//")) != string::npos)
result.replace(found, 2, "/");
return result;
}
/*}}}*/
// 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) const
{
string Res = FindFile(Name,Default);
if (Res.end()[-1] != '/')
{
size_t const found = Res.rfind("/dev/null");
if (found != string::npos && found == Res.size() - 9)
return Res; // /dev/null returning
return Res + '/';
}
return Res;
}
/*}}}*/
// Configuration::FindVector - Find a vector of values /*{{{*/
// ---------------------------------------------------------------------
/* Returns a vector of config values under the given item */
#if APT_PKG_ABI < 413
vector<string> Configuration::FindVector(const char *Name) const
{
return FindVector(Name, "");
}
#endif
vector<string> Configuration::FindVector(const char *Name, std::string const &Default, bool const Keys) const
{
vector<string> Vec;
const Item *Top = Lookup(Name);
if (Top == NULL)
return VectorizeString(Default, ',');
if (Top->Value.empty() == false)
return VectorizeString(Top->Value, ',');
Item *I = Top->Child;
while(I != NULL)
{
Vec.push_back(Keys ? I->Tag : I->Value);
I = I->Next;
}
if (Vec.empty() == true)
return VectorizeString(Default, ',');
return Vec;
}
/*}}}*/
// Configuration::FindI - Find an integer value /*{{{*/
// ---------------------------------------------------------------------
/* */
int Configuration::FindI(const char *Name,int const &Default) const
{
const Item *Itm = Lookup(Name);
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 const &Default) const
{
const Item *Itm = Lookup(Name);
if (Itm == 0 || Itm->Value.empty() == true)
return Default;
return StringToBool(Itm->Value,Default);
}
/*}}}*/
// Configuration::FindAny - Find an arbitrary type /*{{{*/
// ---------------------------------------------------------------------
/* a key suffix of /f, /d, /b or /i calls Find{File,Dir,B,I} */
string Configuration::FindAny(const char *Name,const char *Default) const
{
string key = Name;
char type = 0;
if (key.size() > 2 && key.end()[-2] == '/')
{
type = key.end()[-1];
key.resize(key.size() - 2);
}
switch (type)
{
// file
case 'f':
return FindFile(key.c_str(), Default);
// directory
case 'd':
return FindDir(key.c_str(), Default);
// bool
case 'b':
return FindB(key, Default) ? "true" : "false";
// int
case 'i':
{
char buf[16];
snprintf(buf, sizeof(buf)-1, "%d", FindI(key, Default ? atoi(Default) : 0 ));
return buf;
}
}
// fallback
return Find(Name, Default);
}
/*}}}*/
// Configuration::CndSet - Conditinal Set a value /*{{{*/
// ---------------------------------------------------------------------
/* This will not overwrite */
void Configuration::CndSet(const char *Name,const string &Value)
{
Item *Itm = Lookup(Name,true);
if (Itm == 0)
return;
if (Itm->Value.empty() == true)
Itm->Value = Value;
}
/*}}}*/
// Configuration::Set - Set an integer value /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::CndSet(const char *Name,int const Value)
{
Item *Itm = Lookup(Name,true);
if (Itm == 0 || Itm->Value.empty() == false)
return;
char S[300];
snprintf(S,sizeof(S),"%i",Value);
Itm->Value = S;
}
/*}}}*/
// Configuration::Set - Set a value /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Set(const char *Name,const 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 const &Value)
{
Item *Itm = Lookup(Name,true);
if (Itm == 0)
return;
char S[300];
snprintf(S,sizeof(S),"%i",Value);
Itm->Value = S;
}
/*}}}*/
// Configuration::Clear - Clear an single value from a list /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Clear(string const &Name, int const &Value)
{
char S[300];
snprintf(S,sizeof(S),"%i",Value);
Clear(Name, S);
}
/*}}}*/
// Configuration::Clear - Clear an single value from a list /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Clear(string const &Name, string const &Value)
{
Item *Top = Lookup(Name.c_str(),false);
if (Top == 0 || Top->Child == 0)
return;
Item *Tmp, *Prev, *I;
Prev = I = Top->Child;
while(I != NULL)
{
if(I->Value == Value)
{
Tmp = I;
// was first element, point parent to new first element
if(Top->Child == Tmp)
Top->Child = I->Next;
I = I->Next;
Prev->Next = I;
delete Tmp;
} else {
Prev = I;
I = I->Next;
}
}
}
/*}}}*/
// Configuration::Clear - Clear everything /*{{{*/
// ---------------------------------------------------------------------
void Configuration::Clear()
{
const Configuration::Item *Top = Tree(0);
while( Top != 0 )
{
Clear(Top->FullTag());
Top = Top->Next;
}
}
/*}}}*/
// Configuration::Clear - Clear an entire tree /*{{{*/
// ---------------------------------------------------------------------
/* */
void Configuration::Clear(string const &Name)
{
Item *Top = Lookup(Name.c_str(),false);
if (Top == 0)
return;
Top->Value.clear();
Item *Stop = Top;
Top = Top->Child;
Stop->Child = 0;
for (; Top != 0;)
{
if (Top->Child != 0)
{
Top = Top->Child;
continue;
}
while (Top != 0 && Top->Next == 0)
{
Item *Tmp = Top;
Top = Top->Parent;
delete Tmp;
if (Top == Stop)
return;
}
Item *Tmp = Top;
if (Top != 0)
Top = Top->Next;
delete Tmp;
}
}
/*}}}*/
// Configuration::Exists - Returns true if the Name exists /*{{{*/
// ---------------------------------------------------------------------
/* */
bool Configuration::Exists(const char *Name) const
{
const Item *Itm = Lookup(Name);
if (Itm == 0)
return false;
return true;
}
/*}}}*/
// Configuration::ExistsAny - Returns true if the Name, possibly /*{{{*/
// ---------------------------------------------------------------------
/* qualified by /[fdbi] exists */
bool Configuration::ExistsAny(const char *Name) const
{
string key = Name;
if (key.size() > 2 && key.end()[-2] == '/')
{
if (key.find_first_of("fdbi",key.size()-1) < key.size())
{
key.resize(key.size() - 2);
if (Exists(key.c_str()))
return true;
}
else
{
_error->Warning(_("Unrecognized type abbreviation: '%c'"), key.end()[-3]);
}
}
return Exists(Name);
}
/*}}}*/
// Configuration::Dump - Dump the config /*{{{*/
// ---------------------------------------------------------------------
/* Dump the entire configuration space */
void Configuration::Dump(ostream& str)
{
Dump(str, NULL, "%f \"%v\";\n", true);
}
void Configuration::Dump(ostream& str, char const * const root,
char const * const formatstr, bool const emptyValue)
{
const Configuration::Item* Top = Tree(root);
if (Top == 0)
return;
const Configuration::Item* const Root = (root == NULL) ? NULL : Top;
std::vector<std::string> const format = VectorizeString(formatstr, '%');
/* Write out all of the configuration directives by walking the
configuration tree */
do {
if (emptyValue == true || Top->Value.empty() == emptyValue)
{
std::vector<std::string>::const_iterator f = format.begin();
str << *f;
for (++f; f != format.end(); ++f)
{
if (f->empty() == true)
{
++f;
str << '%' << *f;
continue;
}
char const type = (*f)[0];
if (type == 'f')
str << Top->FullTag();
else if (type == 't')
str << Top->Tag;
else if (type == 'v')
str << Top->Value;
else if (type == 'F')
str << QuoteString(Top->FullTag(), "=\"\n");
else if (type == 'T')
str << QuoteString(Top->Tag, "=\"\n");
else if (type == 'V')
str << QuoteString(Top->Value, "=\"\n");
else if (type == 'n')
str << "\n";
else if (type == 'N')
str << "\t";
else
str << '%' << type;
str << f->c_str() + 1;
}
}
if (Top->Child != 0)
{
Top = Top->Child;
continue;
}
while (Top != 0 && Top->Next == 0)
Top = Top->Parent;
if (Top != 0)
Top = Top->Next;
if (Root != NULL)
{
const Configuration::Item* I = Top;
while(I != 0)
{
if (I == Root)
break;
else
I = I->Parent;
}
if (I == 0)
break;
}
} while (Top != 0);
}
/*}}}*/
// Configuration::Item::FullTag - Return the fully scoped tag /*{{{*/
// ---------------------------------------------------------------------
/* Stop sets an optional max recursion depth if this item is being viewed as
part of a sub tree. */
string Configuration::Item::FullTag(const Item *Stop) const
{
if (Parent == 0 || Parent->Parent == 0 || Parent == Stop)
return Tag;
return Parent->FullTag(Stop) + "::" + 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.
Sectional config files are like bind's named.conf where there are
sections like 'zone "foo.org" { .. };' This causes each section to be
added in with a tag like "zone::foo.org" instead of being split
tag/value. AsSectional enables Sectional parsing.*/
bool ReadConfigFile(Configuration &Conf,const string &FName,bool const &AsSectional,
unsigned const &Depth)
{
// Open the stream for reading
ifstream F(FName.c_str(),ios::in);
if (F.fail() == true)
return _error->Errno("ifstream::ifstream",_("Opening configuration file %s"),FName.c_str());
string LineBuffer;
string Stack[100];
unsigned int StackPos = 0;
// Parser state
string ParentTag;
int CurLine = 0;
bool InComment = false;
while (F.eof() == false)
{
// The raw input line.
std::string Input;
// The input line with comments stripped.
std::string Fragment;
// Grab the next line of F and place it in Input.
do
{
char *Buffer = new char[1024];
F.clear();
F.getline(Buffer,sizeof(Buffer) / 2);
Input += Buffer;
delete[] Buffer;
}
while (F.fail() && !F.eof());
// Expand tabs in the input line and remove leading and trailing
// whitespace.
{
const int BufferSize = Input.size() * 8 + 1;
char *Buffer = new char[BufferSize];
try
{
memcpy(Buffer, Input.c_str(), Input.size() + 1);
_strtabexpand(Buffer, BufferSize);
_strstrip(Buffer);
Input = Buffer;
}
catch(...)
{
delete[] Buffer;
throw;
}
delete[] Buffer;
}
CurLine++;
// Now strip comments; if the whole line is contained in a
// comment, skip this line.
// The first meaningful character in the current fragment; will
// be adjusted below as we remove bytes from the front.
std::string::const_iterator Start = Input.begin();
// The last meaningful character in the current fragment.
std::string::const_iterator End = Input.end();
// Multi line comment
if (InComment == true)
{
for (std::string::const_iterator I = Start;
I != End; ++I)
{
if (*I == '*' && I + 1 != End && I[1] == '/')
{
Start = I + 2;
InComment = false;
break;
}
}
if (InComment == true)
continue;
}
// Discard single line comments
bool InQuote = false;
for (std::string::const_iterator I = Start;
I != End; ++I)
{
if (*I == '"')
InQuote = !InQuote;
if (InQuote == true)
continue;
if ((*I == '/' && I + 1 != End && I[1] == '/') ||
(*I == '#' && strcmp(string(I,I+6).c_str(),"#clear") != 0 &&
strcmp(string(I,I+8).c_str(),"#include") != 0))
{
End = I;
break;
}
}
// Look for multi line comments and build up the
// fragment.
Fragment.reserve(End - Start);
InQuote = false;
for (std::string::const_iterator I = Start;
I != End; ++I)
{
if (*I == '"')
InQuote = !InQuote;
if (InQuote == true)
Fragment.push_back(*I);
else if (*I == '/' && I + 1 != End && I[1] == '*')
{
InComment = true;
for (std::string::const_iterator J = I;
J != End; ++J)
{
if (*J == '*' && J + 1 != End && J[1] == '/')
{
// Pretend we just finished walking over the
// comment, and don't add anything to the output
// fragment.
I = J + 1;
InComment = false;
break;
}
}
if (InComment == true)
break;
}
else
Fragment.push_back(*I);
}
// Skip blank lines.
if (Fragment.empty())
continue;
// The line has actual content; interpret what it means.
InQuote = false;
Start = Fragment.begin();
End = Fragment.end();
for (std::string::const_iterator I = Start;
I != End; ++I)
{
if (*I == '"')
InQuote = !InQuote;
if (InQuote == false && (*I == '{' || *I == ';' || *I == '}'))
{
// Put the last fragment into the buffer
std::string::const_iterator NonWhitespaceStart = Start;
std::string::const_iterator NonWhitespaceStop = I;
for (; NonWhitespaceStart != I && isspace(*NonWhitespaceStart) != 0; ++NonWhitespaceStart)
;
for (; NonWhitespaceStop != NonWhitespaceStart && isspace(NonWhitespaceStop[-1]) != 0; --NonWhitespaceStop)
;
if (LineBuffer.empty() == false && NonWhitespaceStop - NonWhitespaceStart != 0)
LineBuffer += ' ';
LineBuffer += string(NonWhitespaceStart, NonWhitespaceStop);
// Drop this from the input string, saving the character
// that terminated the construct we just closed. (i.e., a
// brace or a semicolon)
char TermChar = *I;
Start = I + 1;
// Syntax Error
if (TermChar == '{' && LineBuffer.empty() == true)
return _error->Error(_("Syntax error %s:%u: Block starts with no name."),FName.c_str(),CurLine);
// No string on this line
if (LineBuffer.empty() == true)
{
if (TermChar == '}')
{
if (StackPos == 0)
ParentTag = string();
else
ParentTag = Stack[--StackPos];
}
continue;
}
// Parse off the tag
string Tag;
const char *Pos = LineBuffer.c_str();
if (ParseQuoteWord(Pos,Tag) == false)
return _error->Error(_("Syntax error %s:%u: Malformed tag"),FName.c_str(),CurLine);
// Parse off the word
string Word;
bool NoWord = false;
if (ParseCWord(Pos,Word) == false &&
ParseQuoteWord(Pos,Word) == false)
{
if (TermChar != '{')
{
Word = Tag;
Tag = "";
}
else
NoWord = true;
}
if (strlen(Pos) != 0)
return _error->Error(_("Syntax error %s:%u: Extra junk after value"),FName.c_str(),CurLine);
// Go down a level
if (TermChar == '{')
{
if (StackPos < sizeof(Stack)/sizeof(std::string))
Stack[StackPos++] = ParentTag;
/* Make sectional tags incorperate the section into the
tag string */
if (AsSectional == true && Word.empty() == false)
{
Tag += "::" ;
Tag += Word;
Word = "";
}
if (ParentTag.empty() == true)
ParentTag = Tag;
else
ParentTag += string("::") + Tag;
Tag = string();
}
// Generate the item name
string Item;
if (ParentTag.empty() == true)
Item = Tag;
else
{
if (TermChar != '{' || Tag.empty() == false)
Item = ParentTag + "::" + Tag;
else
Item = ParentTag;
}
// Specials
if (Tag.length() >= 1 && Tag[0] == '#')
{
if (ParentTag.empty() == false)
return _error->Error(_("Syntax error %s:%u: Directives can only be done at the top level"),FName.c_str(),CurLine);
Tag.erase(Tag.begin());
if (Tag == "clear")
Conf.Clear(Word);
else if (Tag == "include")
{
if (Depth > 10)
return _error->Error(_("Syntax error %s:%u: Too many nested includes"),FName.c_str(),CurLine);
if (Word.length() > 2 && Word.end()[-1] == '/')
{
if (ReadConfigDir(Conf,Word,AsSectional,Depth+1) == false)
return _error->Error(_("Syntax error %s:%u: Included from here"),FName.c_str(),CurLine);
}
else
{
if (ReadConfigFile(Conf,Word,AsSectional,Depth+1) == false)
return _error->Error(_("Syntax error %s:%u: Included from here"),FName.c_str(),CurLine);
}
}
else
return _error->Error(_("Syntax error %s:%u: Unsupported directive '%s'"),FName.c_str(),CurLine,Tag.c_str());
}
else if (Tag.empty() == true && NoWord == false && Word == "#clear")
return _error->Error(_("Syntax error %s:%u: clear directive requires an option tree as argument"),FName.c_str(),CurLine);
else
{
// Set the item in the configuration class
if (NoWord == false)
Conf.Set(Item,Word);
}
// Empty the buffer
LineBuffer.clear();
// Move up a tag, but only if there is no bit to parse
if (TermChar == '}')
{
if (StackPos == 0)
ParentTag.clear();
else
ParentTag = Stack[--StackPos];
}
}
}
// Store the remaining text, if any, in the current line buffer.
// NB: could change this to use string-based operations; I'm
// using strstrip now to ensure backwards compatibility.
// -- dburrows 2008-04-01
{
char *Buffer = new char[End - Start + 1];
try
{
std::copy(Start, End, Buffer);
Buffer[End - Start] = '\0';
const char *Stripd = _strstrip(Buffer);
if (*Stripd != 0 && LineBuffer.empty() == false)
LineBuffer += " ";
LineBuffer += Stripd;
}
catch(...)
{
delete[] Buffer;
throw;
}
delete[] Buffer;
}
}
if (LineBuffer.empty() == false)
return _error->Error(_("Syntax error %s:%u: Extra junk at end of file"),FName.c_str(),CurLine);
return true;
}
/*}}}*/
// ReadConfigDir - Read a directory of config files /*{{{*/
// ---------------------------------------------------------------------
/* */
bool ReadConfigDir(Configuration &Conf,const string &Dir,
bool const &AsSectional, unsigned const &Depth)
{
vector<string> const List = GetListOfFilesInDir(Dir, "conf", true, true);
// Read the files
for (vector<string>::const_iterator I = List.begin(); I != List.end(); ++I)
if (ReadConfigFile(Conf,*I,AsSectional,Depth) == false)
return false;
return true;
}
/*}}}*/
// MatchAgainstConfig Constructor /*{{{*/
Configuration::MatchAgainstConfig::MatchAgainstConfig(char const * Config)
{
std::vector<std::string> const strings = _config->FindVector(Config);
for (std::vector<std::string>::const_iterator s = strings.begin();
s != strings.end(); ++s)
{
regex_t *p = new regex_t;
if (regcomp(p, s->c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB) == 0)
patterns.push_back(p);
else
{
regfree(p);
delete p;
_error->Warning("Invalid regular expression '%s' in configuration "
"option '%s' will be ignored.",
s->c_str(), Config);
continue;
}
}
if (strings.empty() == true)
patterns.push_back(NULL);
}
/*}}}*/
// MatchAgainstConfig Destructor /*{{{*/
Configuration::MatchAgainstConfig::~MatchAgainstConfig()
{
clearPatterns();
}
void Configuration::MatchAgainstConfig::clearPatterns()
{
for(std::vector<regex_t *>::const_iterator p = patterns.begin();
p != patterns.end(); ++p)
{
if (*p == NULL) continue;
regfree(*p);
delete *p;
}
patterns.clear();
}
/*}}}*/
// MatchAgainstConfig::Match - returns true if a pattern matches /*{{{*/
bool Configuration::MatchAgainstConfig::Match(char const * str) const
{
for(std::vector<regex_t *>::const_iterator p = patterns.begin();
p != patterns.end(); ++p)
if (*p != NULL && regexec(*p, str, 0, 0, 0) == 0)
return true;
return false;
}
/*}}}*/