libzypp  17.14.0
String.h
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1 /*---------------------------------------------------------------------\
2 | ____ _ __ __ ___ |
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6 | /_____||_| |_| |_| |
7 | |
8 \---------------------------------------------------------------------*/
12 #ifndef ZYPP_BASE_STRING_H
13 #define ZYPP_BASE_STRING_H
14 
15 #include <cstring>
16 
17 #include <iosfwd>
18 #include <vector>
19 #include <string>
20 #include <sstream>
21 #include <boost/format.hpp>
22 #include <boost/utility/string_ref.hpp>
23 
24 #include "zypp/base/Easy.h"
25 #include "zypp/base/PtrTypes.h"
26 #include "zypp/base/Function.h"
27 
29 namespace boost { namespace logic { class tribool; } }
30 namespace zypp { typedef boost::logic::tribool TriBool; }
32 
34 namespace zypp
35 {
39  template <class Tp>
40  std::string asUserString( const Tp & val_r )
41  { return val_r.asUserString(); }
42 
43 }// namespace zypp
45 
47 namespace zypp
48 {
49 
90  class C_Str
91  {
92  public:
93  typedef std::string::size_type size_type;
94 
95  public:
96  C_Str() : _val( 0 ), _sze( 0 ) {}
97  C_Str( char * c_str_r ) : _val( c_str_r ), _sze( std::string::npos ) {}
98  C_Str( const char * c_str_r ) : _val( c_str_r ), _sze( std::string::npos ) {}
99  C_Str( const std::string & str_r ) : _val( str_r.c_str() ), _sze( str_r.size() ) {}
100  C_Str( const boost::string_ref & str_r ) : _val( str_r.data() ), _sze( str_r.size() ) {}
101 
102  public:
103  bool isNull() const { return !_val; }
104  bool empty() const { return !(_val && *_val); }
105  size_type size() const
106  {
107  if ( _sze == std::string::npos )
108  { _sze = _val ? ::strlen( _val ) : 0; }
109  return _sze;
110  };
111 
112  operator const char *() const { return c_str(); }
113  const char * c_str() const { return _val ? _val : ""; }
114 
115  private:
116  const char *const _val;
117  mutable size_type _sze;
118  };
119 
121  inline std::ostream & operator<<( std::ostream & str, const C_Str & obj )
122  { return str << obj.c_str(); }
123 
125 
129  namespace str
130  {
131 
133 
136  inline const std::string & asString( const std::string & t )
137  { return t; }
138 
139 #ifndef SWIG // Swig treats it as syntax error
140  inline std::string && asString( std::string && t )
141  { return std::move(t); }
142 #endif
143 
144  inline std::string asString( const char * t )
145  { return t == nullptr ? std::string() : t; }
146 
147  inline std::string asString( char * t )
148  { return t == nullptr ? std::string() : t; }
149 
150  template<class Tp>
151  inline std::string asString( const Tp &t )
152  { return t.asString(); }
153 
154  template<class Tp>
155  inline std::string asString( const intrusive_ptr<Tp> &p )
156  { return p->asString(); }
157 
158  template<class Tp>
159  inline std::string asString( const weak_ptr<Tp> &p )
160  { return p->asString(); }
161 
162  template<>
163  inline std::string asString( const bool &t )
164  { return t ? "true" : "false"; }
165 
167 
168  std::string form( const char * format, ... )
169  __attribute__ ((format (printf, 1, 2)));
170 
172 
176  std::string strerror( int errno_r );
177 
179 
189  struct SafeBuf
190  {
191  char * _buf;
192  SafeBuf() : _buf( 0 ) {}
193  ~SafeBuf() { if ( _buf ) free( _buf ); }
194  std::string asString() const
195  { return _buf ? std::string(_buf) : std::string(); }
196  };
197 
210  struct Str
211  {
212  template<class Tp>
213  Str & operator<<( Tp && val )
214  { _str << std::forward<Tp>(val); return *this; }
215 
216  Str & operator<<( std::ostream& (*iomanip)( std::ostream& ) )
217  { _str << iomanip; return *this; }
218 
219  operator std::string() const { return _str.str(); }
220  std::string asString() const { return _str.str(); }
221  std::string str() const { return _str.str(); }
222 
223  const std::ostream & stream() const { return _str; }
224  std::ostream & stream() { return _str; }
225 
226  void clear() { _str.str( std::string() ); }
227 
228  private:
229  std::ostringstream _str;
230  };
231 
233  inline std::ostream & operator<<( std::ostream & str, const Str & obj )
234  { return str << obj.str(); }
235 
251  struct Format
252  {
253  Format() { _fmter.exceptions( boost::io::no_error_bits ); }
254  Format( const std::string & format_r ) : Format() { _fmter.parse( format_r ); }
255 
256  template<class Tp>
257  Format & operator%( Tp && arg )
258  { _fmter % std::forward<Tp>(arg); return *this; }
259 
260  operator std::string() const { return _fmter.str(); }
261  std::string asString() const { return _fmter.str(); }
262  std::string str() const { return _fmter.str(); }
263 
264  const boost::format & fmter() const { return _fmter; }
265  boost::format & fmter() { return _fmter; }
266 
267  protected:
268  boost::format _fmter;
269  };
270 
272  inline std::ostream & operator<<( std::ostream & str, const Format & obj )
273  { return str << obj.fmter(); }
274 
288  inline std::string numstring( char n, int w = 0 ) { return form( "%*hhd", w, n ); }
289  inline std::string numstring( unsigned char n, int w = 0 ) { return form( "%*hhu", w, n ); }
290  inline std::string numstring( short n, int w = 0 ) { return form( "%*hd", w, n ); }
291  inline std::string numstring( unsigned short n, int w = 0 ) { return form( "%*hu", w, n ); }
292  inline std::string numstring( int n, int w = 0 ) { return form( "%*d", w, n ); }
293  inline std::string numstring( unsigned n, int w = 0 ) { return form( "%*u", w, n ); }
294  inline std::string numstring( long n, int w = 0 ) { return form( "%*ld", w, n ); }
295  inline std::string numstring( unsigned long n, int w = 0 ) { return form( "%*lu", w, n ); }
296  inline std::string numstring( long long n, int w = 0 ) { return form( "%*lld", w, n ); }
297  inline std::string numstring( unsigned long long n, int w = 0 ) { return form( "%*llu", w, n ); }
298 
299  template<> inline std::string asString( const char & t ) { return numstring( t ); }
300  template<> inline std::string asString( const unsigned char & t ) { return numstring( t ); }
301  template<> inline std::string asString( const short & t ) { return numstring( t ); }
302  template<> inline std::string asString( const unsigned short & t ) { return numstring( t ); }
303  template<> inline std::string asString( const int & t ) { return numstring( t ); }
304  template<> inline std::string asString( const unsigned & t ) { return numstring( t ); }
305  template<> inline std::string asString( const long & t ) { return numstring( t ); }
306  template<> inline std::string asString( const unsigned long & t ) { return numstring( t ); }
307  template<> inline std::string asString( const long long & t ) { return numstring( t ); }
308  template<> inline std::string asString( const unsigned long long & t ) { return numstring( t ); }
310 
312 
323  inline std::string hexstring( char n, int w = 4 ) { return form( "%#0*hhx", w, n ); }
324  inline std::string hexstring( unsigned char n, int w = 4 ) { return form( "%#0*hhx", w, n ); }
325  inline std::string hexstring( short n, int w = 10 ){ return form( "%#0*hx", w, n ); }
326  inline std::string hexstring( unsigned short n, int w = 10 ){ return form( "%#0*hx", w, n ); }
327  inline std::string hexstring( int n, int w = 10 ){ return form( "%#0*x", w, n ); }
328  inline std::string hexstring( unsigned n, int w = 10 ){ return form( "%#0*x", w, n ); }
329  inline std::string hexstring( long n, int w = 10 ){ return form( "%#0*lx", w, n ); }
330  inline std::string hexstring( unsigned long n, int w = 10 ){ return form( "%#0*lx", w, n ); }
331  inline std::string hexstring( long long n, int w = 0 ) { return form( "%#0*llx", w, n ); }
332  inline std::string hexstring( unsigned long long n, int w = 0 ) { return form( "%#0*llx", w, n ); }
334 
336 
347  inline std::string octstring( char n, int w = 4 ) { return form( "%#0*hho", w, n ); }
348  inline std::string octstring( unsigned char n, int w = 4 ) { return form( "%#0*hho", w, n ); }
349  inline std::string octstring( short n, int w = 5 ) { return form( "%#0*ho", w, n ); }
350  inline std::string octstring( unsigned short n, int w = 5 ) { return form( "%#0*ho", w, n ); }
351  inline std::string octstring( int n, int w = 5 ) { return form( "%#0*o", w, n ); }
352  inline std::string octstring( unsigned n, int w = 5 ) { return form( "%#0*o", w, n ); }
353  inline std::string octstring( long n, int w = 5 ) { return form( "%#0*lo", w, n ); }
354  inline std::string octstring( unsigned long n, int w = 5 ) { return form( "%#0*lo", w, n ); }
355  inline std::string octstring( long long n, int w = 0 ) { return form( "%#0*llo", w, n ); }
356  inline std::string octstring( unsigned long long n, int w = 0 ) { return form( "%#0*llo", w, n ); }
358 
359 
361 
362  template <typename TInt>
363  std::string binstring( TInt val_r )
364  {
365  constexpr unsigned bits = sizeof(TInt)*8;
366  std::string ret( bits, ' ' );
367  TInt bit = 1;
368  for ( unsigned pos = bits; pos > 0; )
369  { --pos; ret[pos] = ((val_r & bit)?'1':'0'); bit = bit<<1; }
370  return ret;
371  }
372 
374 
383  template<typename TInt>
384  TInt strtonum( const C_Str & str );
385 
386  template<>
387  inline short strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
388  template<>
389  inline int strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
390  template<>
391  inline long strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
392  template<>
393  inline long long strtonum( const C_Str & str ) { return ::strtoll ( str, NULL, 0 ); }
394 
395  template<>
396  inline unsigned short strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
397  template<>
398  inline unsigned strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
399  template<>
400  inline unsigned long strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
401  template<>
402  inline unsigned long long strtonum( const C_Str & str ) { return ::strtoull( str, NULL, 0 ); }
403 
409  template<typename TInt>
410  inline TInt strtonum( const C_Str & str, TInt & i )
411  { return i = strtonum<TInt>( str ); }
413 
415 
419  bool strToTrue( const C_Str & str );
420 
422  bool strToFalse( const C_Str & str );
423 
428  inline bool strToBool( const C_Str & str, bool default_r )
429  { return( default_r ? strToFalse( str ) : strToTrue( str ) ); }
430 
435  inline bool strToBoolNodefault( const C_Str & str, bool & return_r )
436  {
437  if ( strToTrue( str ) ) return (return_r = true);
438  if ( !strToFalse( str ) ) return (return_r = false);
439  return return_r;
440  }
441 
443  TriBool strToTriBool( const C_Str & str );
444 
446 
450  std::string gsub( const std::string & str_r, const std::string & from_r, const std::string & to_r );
451 
454  std::string gsubFun( const std::string & str_r, const std::string & from_r, function<std::string()> to_r );
455 
460  std::string & replaceAll( std::string & str_r, const std::string & from_r, const std::string & to_r );
461 
464  std::string & replaceAllFun( std::string & str_r, const std::string & from_r, function<std::string()> to_r );
465 
478  inline std::string gapify( std::string inp_r, std::string::size_type gap_r = 1, char gapchar = ' ' )
479  {
480  if ( gap_r && inp_r.size() > gap_r )
481  {
482  inp_r.reserve( inp_r.size() + (inp_r.size()-1)/gap_r );
483  for ( std::string::size_type pos = gap_r; pos < inp_r.size(); pos += gap_r+1 )
484  inp_r.insert( pos, 1, gapchar );
485  }
486  return inp_r;
487  }
488 
490 
501  template<class TOutputIterator>
502  unsigned split( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = " \t" )
503  {
504  const char * beg = line_r;
505  const char * cur = beg;
506  // skip leading sepchars
507  while ( *cur && ::strchr( sepchars_r, *cur ) )
508  ++cur;
509  unsigned ret = 0;
510  for ( beg = cur; *beg; beg = cur, ++result_r, ++ret )
511  {
512  // skip non sepchars
513  while( *cur && !::strchr( sepchars_r, *cur ) )
514  ++cur;
515  // build string
516  *result_r = std::string( beg, cur-beg );
517  // skip sepchars
518  while ( *cur && ::strchr( sepchars_r, *cur ) )
519  ++cur;
520  }
521  return ret;
522  }
523 
560  template<class TOutputIterator>
561  unsigned splitEscaped( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = " \t", bool withEmpty = false)
562  {
563  const char * beg = line_r;
564  const char * cur = beg;
565  unsigned ret = 0;
566 
567  // skip leading sepchars
568  while ( *cur && ::strchr( sepchars_r, *cur ) )
569  {
570  ++cur;
571  if (withEmpty)
572  {
573  *result_r = "";
574  ++ret;
575  }
576  }
577 
578  // there were only sepchars in the string
579  if (!*cur && withEmpty)
580  {
581  *result_r = "";
582  return ++ret;
583  }
584 
585  // after the leading sepchars
586  enum class Quote { None, Slash, Single, Double, DoubleSlash };
587  std::vector<char> buf;
588  Quote quoting = Quote::None;
589  for ( beg = cur; *beg; beg = cur, ++result_r, ++ret )
590  {
591  // read next value until unquoted sepchar
592  buf.clear();
593  quoting = Quote::None;
594  do {
595  switch ( quoting )
596  {
597  case Quote::None:
598  switch ( *cur )
599  {
600  case '\\': quoting = Quote::Slash; break;
601  case '\'': quoting = Quote::Single; break;
602  case '"': quoting = Quote::Double; break;
603  default: buf.push_back( *cur ); break;
604  }
605  break;
606 
607  case Quote::Slash:
608  buf.push_back( *cur );
609  quoting = Quote::None;
610  break;
611 
612  case Quote::Single:
613  switch ( *cur )
614  {
615  case '\'': quoting = Quote::None; break;
616  default: buf.push_back( *cur ); break;
617  }
618  break;
619 
620  case Quote::Double:
621  switch ( *cur )
622  {
623  case '\"': quoting = Quote::None; break;
624  case '\\': quoting = Quote::DoubleSlash; break;
625  default: buf.push_back( *cur ); break;
626  }
627  break;
628 
629  case Quote::DoubleSlash:
630  switch ( *cur )
631  {
632  case '\"': /*fallthrough*/
633  case '\\': buf.push_back( *cur ); break;
634  default:
635  buf.push_back( '\\' );
636  buf.push_back( *cur );
637  break;
638  }
639  quoting = Quote::Double;
640  break;
641  }
642  ++cur;
643  } while ( *cur && ( quoting != Quote::None || !::strchr( sepchars_r, *cur ) ) );
644  *result_r = std::string( buf.begin(), buf.end() );
645 
646 
647  // skip sepchars
648  if ( *cur && ::strchr( sepchars_r, *cur ) )
649  ++cur;
650  while ( *cur && ::strchr( sepchars_r, *cur ) )
651  {
652  ++cur;
653  if (withEmpty)
654  {
655  *result_r = "";
656  ++ret;
657  }
658  }
659  // the last was a separator => one more field
660  if ( !*cur && withEmpty && ::strchr( sepchars_r, *(cur-1) ) )
661  {
662  *result_r = "";
663  ++ret;
664  }
665  }
666  return ret;
667  }
668 
690  template<class TOutputIterator>
691  unsigned splitFields( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = ":" )
692  {
693  const char * beg = line_r;
694  const char * cur = beg;
695  unsigned ret = 0;
696  for ( beg = cur; *beg; beg = cur, ++result_r )
697  {
698  // skip non sepchars
699  while( *cur && !::strchr( sepchars_r, *cur ) )
700  {
701  if ( *cur == '\\' && *(cur+1) )
702  ++cur;
703  ++cur;
704  }
705  // build string
706  *result_r = std::string( beg, cur-beg );
707  ++ret;
708  // skip sepchar
709  if ( *cur )
710  {
711  ++cur;
712  if ( ! *cur ) // ending with sepchar
713  {
714  *result_r = std::string(); // add final empty field
715  ++ret;
716  break;
717  }
718  }
719  }
720  return ret;
721  }
722 
729  template<class TOutputIterator>
730  unsigned splitFieldsEscaped( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = ":" )
731  {
732  return splitEscaped( line_r, result_r, sepchars_r, true /* withEmpty */ );
733  }
734 
736 
738 
741  template <class TIterator>
742  std::string join( TIterator begin, TIterator end, const C_Str & sep_r = " " )
743  {
744  std::string res;
745  for ( TIterator iter = begin; iter != end; ++ iter )
746  {
747  if ( iter != begin )
748  res += sep_r;
749  res += asString(*iter);
750  }
751  return res;
752  }
753 
755  template <class TContainer>
756  std::string join( const TContainer & cont_r, const C_Str & sep_r = " " )
757  { return join( cont_r.begin(), cont_r.end(), sep_r ); }
758 
763  template <class TIterator>
764  std::string joinEscaped( TIterator begin, TIterator end, const char sep_r = ' ' )
765  {
766  std::vector<char> buf;
767  for ( TIterator iter = begin; iter != end; ++ iter )
768  {
769  if ( iter != begin )
770  buf.push_back( sep_r );
771 
772  if ( iter->empty() )
773  {
774  // empty string goes ""
775  buf.push_back( '"' );
776  buf.push_back( '"' );
777  }
778  else
779  {
780  std::string toadd( asString(*iter) );
781  for_( ch, toadd.begin(), toadd.end() )
782  {
783  switch ( *ch )
784  {
785  case '"':
786  case '\'':
787  case '\\':
788  buf.push_back( '\\' );
789  buf.push_back( *ch );
790  break;
791  default:
792  if ( *ch == sep_r )
793  buf.push_back( '\\' );
794  buf.push_back( *ch );
795  }
796  }
797  }
798  }
799  return std::string( buf.begin(), buf.end() );
800  }
802 
803 
805 
811  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, const std::string & indent_r = " ", unsigned maxWitdh_r = 0 )
812  {
813  if ( maxWitdh_r )
814  {
815  if ( indent_r.size() >= maxWitdh_r )
816  maxWitdh_r = 0; // nonsense: indent larger than line witdh
817  else
818  maxWitdh_r -= indent_r.size();
819  }
820  unsigned width = 0;
821  for ( const char * e = text_r.c_str(), * s = e; *e; s = ++e )
822  {
823  for ( ; *e && *e != '\n'; ++e ) ;/*searching*/
824  width = e-s;
825  if ( maxWitdh_r && width > maxWitdh_r )
826  {
827  // must break line
828  width = maxWitdh_r;
829  for ( e = s+width; e > s && *e != ' '; --e ) ;/*searching*/
830  if ( e > s )
831  width = e-s; // on a ' ', replaced by '\n'
832  else
833  e = s+width-1; // cut line;
834  }
835  str << indent_r;
836  str.write( s, width );
837  str << "\n";
838  if ( !*e ) // on '\0'
839  break;
840  }
841  return str;
842  }
844  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, unsigned indent_r, char indentch_r = ' ', unsigned maxWitdh_r = 0 )
845  { return printIndented( str, text_r, std::string( indent_r, indentch_r ), maxWitdh_r ); }
847  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, unsigned indent_r, unsigned maxWitdh_r, char indentch_r = ' ' )
848  { return printIndented( str, text_r, std::string( indent_r, indentch_r ), maxWitdh_r ); }
849 
853  inline std::ostream & autoPrefix( std::ostream & str, const std::string & text_r, function<std::string(const char*, const char*)> fnc_r )
854  {
855  for ( const char * e = text_r.c_str(); *e; ++e )
856  {
857  const char * s = e;
858  for ( ; *e && *e != '\n'; ++e ) /*searching*/;
859  str << fnc_r( s, e );
860  str.write( s, e-s );
861  str << "\n";
862  if ( !*e ) // on '\0'
863  break;
864  }
865  return str;
866  }
868  inline std::ostream & autoPrefix0( std::ostream & str, const std::string & text_r, function<std::string()> fnc_r )
869  {
870  auto wrap = [&fnc_r]( const char*, const char* )-> std::string {
871  return fnc_r();
872  };
873  return autoPrefix( str, text_r, wrap );
874  }
876 
877 
885  std::string escape( const C_Str & str_r, const char c = ' ' );
886 
888  inline void appendEscaped( std::string & str_r, const C_Str & next_r, const char sep_r = ' ' )
889  {
890  if ( ! str_r.empty() )
891  str_r += sep_r;
892  if ( next_r.empty() )
893  str_r += "\"\"";
894  else
895  str_r += escape( next_r, sep_r );
896  }
897 
899  std::string bEscape( std::string str_r, const C_Str & special_r );
900 
902  std::string rxEscapeStr( std::string str_r );
903 
905  std::string rxEscapeGlob( std::string str_r );
906 
908 
910 
911 
912 
920  std::string hexencode( const C_Str & str_r );
922  std::string hexdecode( const C_Str & str_r );
924 
925 
931  std::string toLower( const std::string & s );
932  std::string toLower( std::string && s );
934  inline std::string toLower( const char * s )
935  { return( s ? toLower( std::string(s) ) : std::string() ); }
936 
940  std::string toUpper( const std::string & s );
941  std::string toUpper( std::string && s );
943  inline std::string toUpper( const char * s )
944  { return( s ? toUpper( std::string(s) ) : std::string() ); }
946 
947 
950  inline int compareCI( const C_Str & lhs, const C_Str & rhs )
951  { return ::strcasecmp( lhs, rhs ); }
953 
957  inline bool contains( const C_Str & str_r, const C_Str & val_r )
958  { return ::strstr( str_r, val_r ); }
960  inline bool containsCI( const C_Str & str_r, const C_Str & val_r )
961  { return ::strcasestr( str_r, val_r ); }
963 
965 
970  enum Trim {
971  NO_TRIM = 0x00,
972  L_TRIM = 0x01,
973  R_TRIM = 0x02,
974  TRIM = (L_TRIM|R_TRIM)
975  };
976 
977  std::string trim( const std::string & s, const Trim trim_r = TRIM );
978  std::string trim( std::string && s, const Trim trim_r = TRIM );
979 
980  inline std::string ltrim( const std::string & s )
981  { return trim( s, L_TRIM ); }
982  inline std::string ltrim( std::string && s )
983  { return trim( std::move(s), L_TRIM ); }
984 
985  inline std::string rtrim( const std::string & s )
986  { return trim( s, R_TRIM ); }
987  inline std::string rtrim( std::string && s )
988  { return trim( std::move(s), R_TRIM ); }
990 
991  std::string stripFirstWord( std::string & line, const bool ltrim_first = true );
992 
993  std::string stripLastWord( std::string & line, const bool rtrim_first = true );
994 
998  std::string getline( std::istream & str, bool trim = false );
999 
1003  std::string getline( std::istream & str, const Trim trim_r );
1004 
1012  std::string receiveUpTo( std::istream & str, const char delim_r, bool returnDelim_r = false );
1013 
1015 
1020  inline bool hasPrefix( const C_Str & str_r, const C_Str & prefix_r )
1021  { return( ::strncmp( str_r, prefix_r, prefix_r.size() ) == 0 ); }
1023  inline bool hasPrefixCI( const C_Str & str_r, const C_Str & prefix_r )
1024  { return( ::strncasecmp( str_r, prefix_r, prefix_r.size() ) == 0 ); }
1025 
1027  inline std::string stripPrefix( const C_Str & str_r, const C_Str & prefix_r )
1028  { return( hasPrefix( str_r, prefix_r ) ? str_r + prefix_r.size() : str_r.c_str() ); }
1030  inline std::string stripPrefixCI( const C_Str & str_r, const C_Str & prefix_r )
1031  { return( hasPrefixCI( str_r, prefix_r ) ? str_r + prefix_r.size() : str_r.c_str() ); }
1032 
1034  inline bool hasSuffix( const C_Str & str_r, const C_Str & suffix_r )
1035  { return( str_r.size() >= suffix_r.size() && ::strncmp( str_r + str_r.size() - suffix_r.size() , suffix_r, suffix_r.size() ) == 0 ); }
1037  inline bool hasSuffixCI( const C_Str & str_r, const C_Str & suffix_r )
1038  { return( str_r.size() >= suffix_r.size() && ::strncasecmp( str_r + str_r.size() - suffix_r.size() , suffix_r, suffix_r.size() ) == 0 ); }
1039 
1041  inline std::string stripSuffix( const C_Str & str_r, const C_Str & suffix_r )
1042  {
1043  if ( hasSuffix( str_r, suffix_r ) )
1044  return std::string( str_r, str_r.size() - suffix_r.size() );
1045  return str_r.c_str();
1046  }
1048  inline std::string stripSuffixCI( const C_Str & str_r, const C_Str & suffix_r )
1049  {
1050  if ( hasSuffixCI( str_r, suffix_r ) )
1051  return std::string( str_r, str_r.size() - suffix_r.size() );
1052  return str_r.c_str();
1053  }
1054 
1056  inline std::string::size_type commonPrefix( const C_Str & lhs, const C_Str & rhs )
1057  {
1058  const char * lp = lhs.c_str();
1059  const char * rp = rhs.c_str();
1060  std::string::size_type ret = 0;
1061  while ( *lp == *rp && *lp != '\0' )
1062  { ++lp, ++rp, ++ret; }
1063  return ret;
1064  }
1066  inline std::string::size_type commonPrefixCI( const C_Str & lhs, const C_Str & rhs )
1067  {
1068  const char * lp = lhs.c_str();
1069  const char * rp = rhs.c_str();
1070  std::string::size_type ret = 0;
1071  while ( tolower(*lp) == tolower(*rp) && *lp != '\0' )
1072  { ++lp, ++rp, ++ret; }
1073  return ret;
1074  }
1075 
1076 
1078  inline bool startsWith( const C_Str & str_r, const C_Str & prefix_r )
1079  { return hasPrefix( str_r, prefix_r ); }
1081  inline bool startsWithCI( const C_Str & str_r, const C_Str & prefix_r )
1082  { return hasPrefixCI( str_r, prefix_r ); }
1083 
1085  inline bool endsWith( const C_Str & str_r, const C_Str & prefix_r )
1086  { return hasSuffix( str_r, prefix_r ); }
1088  inline bool endsWithCI( const C_Str & str_r, const C_Str & prefix_r )
1089  { return hasSuffixCI( str_r, prefix_r ); }
1091  } // namespace str
1093 
1094  // drag into zypp:: namespace
1095  using str::asString;
1096 
1097 } // namespace zypp
1099 #endif // ZYPP_BASE_STRING_H