libzypp  17.25.2
String.h
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1 /*---------------------------------------------------------------------\
2 | ____ _ __ __ ___ |
3 | |__ / \ / / . \ . \ |
4 | / / \ V /| _/ _/ |
5 | / /__ | | | | | | |
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  inline std::string && asString( std::string && t )
140  { return std::move(t); }
141 
142  inline std::string asString( const char * t )
143  { return t == nullptr ? std::string() : t; }
144 
145  inline std::string asString( char * t )
146  { return t == nullptr ? std::string() : t; }
147 
148  template<class Tp>
149  inline std::string asString( const Tp &t )
150  { return t.asString(); }
151 
152  template<class Tp>
153  inline std::string asString( const intrusive_ptr<Tp> &p )
154  { return p->asString(); }
155 
156  template<class Tp>
157  inline std::string asString( const weak_ptr<Tp> &p )
158  { return p->asString(); }
159 
160  template<>
161  inline std::string asString( const bool &t )
162  { return t ? "true" : "false"; }
163 
165 
166  std::string form( const char * format, ... )
167  __attribute__ ((format (printf, 1, 2)));
168 
170 
174  std::string strerror( int errno_r );
175 
177 
187  struct SafeBuf
188  {
189  char * _buf;
190  SafeBuf() : _buf( 0 ) {}
191  ~SafeBuf() { if ( _buf ) free( _buf ); }
192  std::string asString() const
193  { return _buf ? std::string(_buf) : std::string(); }
194  };
195 
208  struct Str
209  {
210  template<class Tp>
211  Str & operator<<( Tp && val )
212  { _str << std::forward<Tp>(val); return *this; }
213 
214  Str & operator<<( std::ostream& (*iomanip)( std::ostream& ) )
215  { _str << iomanip; return *this; }
216 
217  operator std::string() const { return _str.str(); }
218  std::string asString() const { return _str.str(); }
219  std::string str() const { return _str.str(); }
220 
221  const std::ostream & stream() const { return _str; }
222  std::ostream & stream() { return _str; }
223 
224  void clear() { _str.str( std::string() ); }
225 
226  private:
227  std::ostringstream _str;
228  };
229 
231  inline std::ostream & operator<<( std::ostream & str, const Str & obj )
232  { return str << obj.str(); }
233 
249  struct Format
250  {
251  Format() { _fmter.exceptions( boost::io::no_error_bits ); }
252  Format( const std::string & format_r ) : Format() { _fmter.parse( format_r ); }
253 
254  template<class Tp>
255  Format & operator%( Tp && arg )
256  { _fmter % std::forward<Tp>(arg); return *this; }
257 
258  operator std::string() const { return _fmter.str(); }
259  std::string asString() const { return _fmter.str(); }
260  std::string str() const { return _fmter.str(); }
261 
262  const boost::format & fmter() const { return _fmter; }
263  boost::format & fmter() { return _fmter; }
264 
265  protected:
266  boost::format _fmter;
267  };
268 
270  inline std::ostream & operator<<( std::ostream & str, const Format & obj )
271  { return str << obj.fmter(); }
272 
286  inline std::string numstring( char n, int w = 0 ) { return form( "%*hhd", w, n ); }
287  inline std::string numstring( unsigned char n, int w = 0 ) { return form( "%*hhu", w, n ); }
288  inline std::string numstring( short n, int w = 0 ) { return form( "%*hd", w, n ); }
289  inline std::string numstring( unsigned short n, int w = 0 ) { return form( "%*hu", w, n ); }
290  inline std::string numstring( int n, int w = 0 ) { return form( "%*d", w, n ); }
291  inline std::string numstring( unsigned n, int w = 0 ) { return form( "%*u", w, n ); }
292  inline std::string numstring( long n, int w = 0 ) { return form( "%*ld", w, n ); }
293  inline std::string numstring( unsigned long n, int w = 0 ) { return form( "%*lu", w, n ); }
294  inline std::string numstring( long long n, int w = 0 ) { return form( "%*lld", w, n ); }
295  inline std::string numstring( unsigned long long n, int w = 0 ) { return form( "%*llu", w, n ); }
296 
297  template<> inline std::string asString( const char & t ) { return numstring( t ); }
298  template<> inline std::string asString( const unsigned char & t ) { return numstring( t ); }
299  template<> inline std::string asString( const short & t ) { return numstring( t ); }
300  template<> inline std::string asString( const unsigned short & t ) { return numstring( t ); }
301  template<> inline std::string asString( const int & t ) { return numstring( t ); }
302  template<> inline std::string asString( const unsigned & t ) { return numstring( t ); }
303  template<> inline std::string asString( const long & t ) { return numstring( t ); }
304  template<> inline std::string asString( const unsigned long & t ) { return numstring( t ); }
305  template<> inline std::string asString( const long long & t ) { return numstring( t ); }
306  template<> inline std::string asString( const unsigned long long & t ) { return numstring( t ); }
308 
310 
321  inline std::string hexstring( char n, int w = 4 ) { return form( "%#0*hhx", w, n ); }
322  inline std::string hexstring( unsigned char n, int w = 4 ) { return form( "%#0*hhx", w, n ); }
323  inline std::string hexstring( short n, int w = 10 ){ return form( "%#0*hx", w, n ); }
324  inline std::string hexstring( unsigned short n, int w = 10 ){ return form( "%#0*hx", w, n ); }
325  inline std::string hexstring( int n, int w = 10 ){ return form( "%#0*x", w, n ); }
326  inline std::string hexstring( unsigned n, int w = 10 ){ return form( "%#0*x", w, n ); }
327  inline std::string hexstring( long n, int w = 10 ){ return form( "%#0*lx", w, n ); }
328  inline std::string hexstring( unsigned long n, int w = 10 ){ return form( "%#0*lx", w, n ); }
329  inline std::string hexstring( long long n, int w = 0 ) { return form( "%#0*llx", w, n ); }
330  inline std::string hexstring( unsigned long long n, int w = 0 ) { return form( "%#0*llx", w, n ); }
332 
334 
345  inline std::string octstring( char n, int w = 4 ) { return form( "%#0*hho", w, n ); }
346  inline std::string octstring( unsigned char n, int w = 4 ) { return form( "%#0*hho", w, n ); }
347  inline std::string octstring( short n, int w = 5 ) { return form( "%#0*ho", w, n ); }
348  inline std::string octstring( unsigned short n, int w = 5 ) { return form( "%#0*ho", w, n ); }
349  inline std::string octstring( int n, int w = 5 ) { return form( "%#0*o", w, n ); }
350  inline std::string octstring( unsigned n, int w = 5 ) { return form( "%#0*o", w, n ); }
351  inline std::string octstring( long n, int w = 5 ) { return form( "%#0*lo", w, n ); }
352  inline std::string octstring( unsigned long n, int w = 5 ) { return form( "%#0*lo", w, n ); }
353  inline std::string octstring( long long n, int w = 0 ) { return form( "%#0*llo", w, n ); }
354  inline std::string octstring( unsigned long long n, int w = 0 ) { return form( "%#0*llo", w, n ); }
356 
357 
359 
360  template <typename TInt>
361  std::string binstring( TInt val_r )
362  {
363  constexpr unsigned bits = sizeof(TInt)*8;
364  std::string ret( bits, ' ' );
365  TInt bit = 1;
366  for ( unsigned pos = bits; pos > 0; )
367  { --pos; ret[pos] = ((val_r & bit)?'1':'0'); bit = bit<<1; }
368  return ret;
369  }
370 
372 
381  template<typename TInt>
382  TInt strtonum( const C_Str & str );
383 
384  template<>
385  inline short strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
386  template<>
387  inline int strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
388  template<>
389  inline long strtonum( const C_Str & str ) { return ::strtol ( str, NULL, 0 ); }
390  template<>
391  inline long long strtonum( const C_Str & str ) { return ::strtoll ( str, NULL, 0 ); }
392 
393  template<>
394  inline unsigned short strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
395  template<>
396  inline unsigned strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
397  template<>
398  inline unsigned long strtonum( const C_Str & str ) { return ::strtoul ( str, NULL, 0 ); }
399  template<>
400  inline unsigned long long strtonum( const C_Str & str ) { return ::strtoull( str, NULL, 0 ); }
401 
407  template<typename TInt>
408  inline TInt strtonum( const C_Str & str, TInt & i )
409  { return i = strtonum<TInt>( str ); }
411 
413 
417  bool strToTrue( const C_Str & str );
418 
420  bool strToFalse( const C_Str & str );
421 
426  inline bool strToBool( const C_Str & str, bool default_r )
427  { return( default_r ? strToFalse( str ) : strToTrue( str ) ); }
428 
433  inline bool strToBoolNodefault( const C_Str & str, bool & return_r )
434  {
435  if ( strToTrue( str ) ) return (return_r = true);
436  if ( !strToFalse( str ) ) return (return_r = false);
437  return return_r;
438  }
439 
441  TriBool strToTriBool( const C_Str & str );
442 
444 
448  std::string gsub( const std::string & str_r, const std::string & from_r, const std::string & to_r );
449 
452  std::string gsubFun( const std::string & str_r, const std::string & from_r, function<std::string()> to_r );
453 
458  std::string & replaceAll( std::string & str_r, const std::string & from_r, const std::string & to_r );
459 
462  std::string & replaceAllFun( std::string & str_r, const std::string & from_r, function<std::string()> to_r );
463 
476  inline std::string gapify( std::string inp_r, std::string::size_type gap_r = 1, char gapchar = ' ' )
477  {
478  if ( gap_r && inp_r.size() > gap_r )
479  {
480  inp_r.reserve( inp_r.size() + (inp_r.size()-1)/gap_r );
481  for ( std::string::size_type pos = gap_r; pos < inp_r.size(); pos += gap_r+1 )
482  inp_r.insert( pos, 1, gapchar );
483  }
484  return inp_r;
485  }
486 
488 
493  enum Trim {
494  NO_TRIM = 0x00,
495  L_TRIM = 0x01,
496  R_TRIM = 0x02,
497  TRIM = (L_TRIM|R_TRIM)
498  };
499 
500  std::string trim( const std::string & s, const Trim trim_r = TRIM );
501  std::string trim( std::string && s, const Trim trim_r = TRIM );
502 
503  inline std::string ltrim( const std::string & s )
504  { return trim( s, L_TRIM ); }
505  inline std::string ltrim( std::string && s )
506  { return trim( std::move(s), L_TRIM ); }
507 
508  inline std::string rtrim( const std::string & s )
509  { return trim( s, R_TRIM ); }
510  inline std::string rtrim( std::string && s )
511  { return trim( std::move(s), R_TRIM ); }
513 
515 
526  template<class TOutputIterator>
527  unsigned split( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = " \t", const Trim trim_r = NO_TRIM )
528  {
529  const char * beg = line_r;
530  const char * cur = beg;
531  // skip leading sepchars
532  while ( *cur && ::strchr( sepchars_r, *cur ) )
533  ++cur;
534  unsigned ret = 0;
535  for ( beg = cur; *beg; beg = cur, ++result_r, ++ret )
536  {
537  // skip non sepchars
538  while( *cur && !::strchr( sepchars_r, *cur ) )
539  ++cur;
540  // build string
541  *result_r = trim( std::string( beg, cur-beg ), trim_r );
542  // skip sepchars
543  while ( *cur && ::strchr( sepchars_r, *cur ) )
544  ++cur;
545  }
546  return ret;
547  }
548 
549  template<class TOutputIterator>
550  unsigned split( const C_Str & line_r, TOutputIterator result_r, const Trim trim_r )
551  { return split( line_r, result_r, " \t", trim_r ); }
552 
553 
590  template<class TOutputIterator>
591  unsigned splitEscaped( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = " \t", bool withEmpty = false)
592  {
593  const char * beg = line_r;
594  const char * cur = beg;
595  unsigned ret = 0;
596 
597  // skip leading sepchars
598  while ( *cur && ::strchr( sepchars_r, *cur ) )
599  {
600  ++cur;
601  if (withEmpty)
602  {
603  *result_r = "";
604  ++ret;
605  }
606  }
607 
608  // there were only sepchars in the string
609  if (!*cur && withEmpty)
610  {
611  *result_r = "";
612  return ++ret;
613  }
614 
615  // after the leading sepchars
616  enum class Quote { None, Slash, Single, Double, DoubleSlash };
617  std::vector<char> buf;
618  Quote quoting = Quote::None;
619  for ( beg = cur; *beg; beg = cur, ++result_r, ++ret )
620  {
621  // read next value until unquoted sepchar
622  buf.clear();
623  quoting = Quote::None;
624  do {
625  switch ( quoting )
626  {
627  case Quote::None:
628  switch ( *cur )
629  {
630  case '\\': quoting = Quote::Slash; break;
631  case '\'': quoting = Quote::Single; break;
632  case '"': quoting = Quote::Double; break;
633  default: buf.push_back( *cur ); break;
634  }
635  break;
636 
637  case Quote::Slash:
638  buf.push_back( *cur );
639  quoting = Quote::None;
640  break;
641 
642  case Quote::Single:
643  switch ( *cur )
644  {
645  case '\'': quoting = Quote::None; break;
646  default: buf.push_back( *cur ); break;
647  }
648  break;
649 
650  case Quote::Double:
651  switch ( *cur )
652  {
653  case '\"': quoting = Quote::None; break;
654  case '\\': quoting = Quote::DoubleSlash; break;
655  default: buf.push_back( *cur ); break;
656  }
657  break;
658 
659  case Quote::DoubleSlash:
660  switch ( *cur )
661  {
662  case '\"': /*fallthrough*/
663  case '\\': buf.push_back( *cur ); break;
664  default:
665  buf.push_back( '\\' );
666  buf.push_back( *cur );
667  break;
668  }
669  quoting = Quote::Double;
670  break;
671  }
672  ++cur;
673  } while ( *cur && ( quoting != Quote::None || !::strchr( sepchars_r, *cur ) ) );
674  *result_r = std::string( buf.begin(), buf.end() );
675 
676 
677  // skip sepchars
678  if ( *cur && ::strchr( sepchars_r, *cur ) )
679  ++cur;
680  while ( *cur && ::strchr( sepchars_r, *cur ) )
681  {
682  ++cur;
683  if (withEmpty)
684  {
685  *result_r = "";
686  ++ret;
687  }
688  }
689  // the last was a separator => one more field
690  if ( !*cur && withEmpty && ::strchr( sepchars_r, *(cur-1) ) )
691  {
692  *result_r = "";
693  ++ret;
694  }
695  }
696  return ret;
697  }
698 
720  template<class TOutputIterator>
721  unsigned splitFields( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = ":" )
722  {
723  const char * beg = line_r;
724  const char * cur = beg;
725  unsigned ret = 0;
726  for ( beg = cur; *beg; beg = cur, ++result_r )
727  {
728  // skip non sepchars
729  while( *cur && !::strchr( sepchars_r, *cur ) )
730  {
731  if ( *cur == '\\' && *(cur+1) )
732  ++cur;
733  ++cur;
734  }
735  // build string
736  *result_r = std::string( beg, cur-beg );
737  ++ret;
738  // skip sepchar
739  if ( *cur )
740  {
741  ++cur;
742  if ( ! *cur ) // ending with sepchar
743  {
744  *result_r = std::string(); // add final empty field
745  ++ret;
746  break;
747  }
748  }
749  }
750  return ret;
751  }
752 
759  template<class TOutputIterator>
760  unsigned splitFieldsEscaped( const C_Str & line_r, TOutputIterator result_r, const C_Str & sepchars_r = ":" )
761  {
762  return splitEscaped( line_r, result_r, sepchars_r, true /* withEmpty */ );
763  }
764 
766 
768 
771  template <class TIterator>
772  std::string join( TIterator begin, TIterator end, const C_Str & sep_r = " " )
773  {
774  std::string res;
775  for ( TIterator iter = begin; iter != end; ++ iter )
776  {
777  if ( iter != begin )
778  res += sep_r;
779  res += asString(*iter);
780  }
781  return res;
782  }
783 
785  template <class TContainer>
786  std::string join( const TContainer & cont_r, const C_Str & sep_r = " " )
787  { return join( cont_r.begin(), cont_r.end(), sep_r ); }
788 
793  template <class TIterator>
794  std::string joinEscaped( TIterator begin, TIterator end, const char sep_r = ' ' )
795  {
796  std::vector<char> buf;
797  for ( TIterator iter = begin; iter != end; ++ iter )
798  {
799  if ( iter != begin )
800  buf.push_back( sep_r );
801 
802  if ( iter->empty() )
803  {
804  // empty string goes ""
805  buf.push_back( '"' );
806  buf.push_back( '"' );
807  }
808  else
809  {
810  std::string toadd( asString(*iter) );
811  for_( ch, toadd.begin(), toadd.end() )
812  {
813  switch ( *ch )
814  {
815  case '"':
816  case '\'':
817  case '\\':
818  buf.push_back( '\\' );
819  buf.push_back( *ch );
820  break;
821  default:
822  if ( *ch == sep_r )
823  buf.push_back( '\\' );
824  buf.push_back( *ch );
825  }
826  }
827  }
828  }
829  return std::string( buf.begin(), buf.end() );
830  }
832 
833 
835 
841  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, const std::string & indent_r = " ", unsigned maxWitdh_r = 0 )
842  {
843  if ( maxWitdh_r )
844  {
845  if ( indent_r.size() >= maxWitdh_r )
846  maxWitdh_r = 0; // nonsense: indent larger than line witdh
847  else
848  maxWitdh_r -= indent_r.size();
849  }
850  unsigned width = 0;
851  for ( const char * e = text_r.c_str(), * s = e; *e; s = ++e )
852  {
853  for ( ; *e && *e != '\n'; ++e ) ;/*searching*/
854  width = e-s;
855  if ( maxWitdh_r && width > maxWitdh_r )
856  {
857  // must break line
858  width = maxWitdh_r;
859  for ( e = s+width; e > s && *e != ' '; --e ) ;/*searching*/
860  if ( e > s )
861  width = e-s; // on a ' ', replaced by '\n'
862  else
863  e = s+width-1; // cut line;
864  }
865  str << indent_r;
866  str.write( s, width );
867  str << "\n";
868  if ( !*e ) // on '\0'
869  break;
870  }
871  return str;
872  }
874  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, unsigned indent_r, char indentch_r = ' ', unsigned maxWitdh_r = 0 )
875  { return printIndented( str, text_r, std::string( indent_r, indentch_r ), maxWitdh_r ); }
877  inline std::ostream & printIndented( std::ostream & str, const std::string & text_r, unsigned indent_r, unsigned maxWitdh_r, char indentch_r = ' ' )
878  { return printIndented( str, text_r, std::string( indent_r, indentch_r ), maxWitdh_r ); }
879 
883  inline std::ostream & autoPrefix( std::ostream & str, const std::string & text_r, function<std::string(const char*, const char*)> fnc_r )
884  {
885  for ( const char * e = text_r.c_str(); *e; ++e )
886  {
887  const char * s = e;
888  for ( ; *e && *e != '\n'; ++e ) /*searching*/;
889  str << fnc_r( s, e );
890  str.write( s, e-s );
891  str << "\n";
892  if ( !*e ) // on '\0'
893  break;
894  }
895  return str;
896  }
898  inline std::ostream & autoPrefix0( std::ostream & str, const std::string & text_r, function<std::string()> fnc_r )
899  {
900  auto wrap = [&fnc_r]( const char*, const char* )-> std::string {
901  return fnc_r();
902  };
903  return autoPrefix( str, text_r, wrap );
904  }
906 
915  std::string escape( const C_Str & str_r, const char c = ' ' );
916 
918  inline void appendEscaped( std::string & str_r, const C_Str & next_r, const char sep_r = ' ' )
919  {
920  if ( ! str_r.empty() )
921  str_r += sep_r;
922  if ( next_r.empty() )
923  str_r += "\"\"";
924  else
925  str_r += escape( next_r, sep_r );
926  }
927 
929  std::string bEscape( std::string str_r, const C_Str & special_r );
930 
932  std::string rxEscapeStr( std::string str_r );
933 
935  std::string rxEscapeGlob( std::string str_r );
936 
938 
940 
950  std::string hexencode( const C_Str & str_r );
952  std::string hexdecode( const C_Str & str_r );
954 
961  std::string toLower( const std::string & s );
962  std::string toLower( std::string && s );
964  inline std::string toLower( const char * s )
965  { return( s ? toLower( std::string(s) ) : std::string() ); }
966 
970  std::string toUpper( const std::string & s );
971  std::string toUpper( std::string && s );
973  inline std::string toUpper( const char * s )
974  { return( s ? toUpper( std::string(s) ) : std::string() ); }
976 
977 
980  inline int compareCI( const C_Str & lhs, const C_Str & rhs )
981  { return ::strcasecmp( lhs, rhs ); }
983 
987  inline bool contains( const C_Str & str_r, const C_Str & val_r )
988  { return ::strstr( str_r, val_r ); }
990  inline bool containsCI( const C_Str & str_r, const C_Str & val_r )
991  { return ::strcasestr( str_r, val_r ); }
993 
994  std::string stripFirstWord( std::string & line, const bool ltrim_first = true );
995 
996  std::string stripLastWord( std::string & line, const bool rtrim_first = true );
997 
1001  std::string getline( std::istream & str, bool trim = false );
1002 
1006  std::string getline( std::istream & str, const Trim trim_r );
1007 
1015  std::string receiveUpTo( std::istream & str, const char delim_r, bool returnDelim_r = false );
1016 
1018 
1023  inline bool hasPrefix( const C_Str & str_r, const C_Str & prefix_r )
1024  { return( ::strncmp( str_r, prefix_r, prefix_r.size() ) == 0 ); }
1026  inline bool hasPrefixCI( const C_Str & str_r, const C_Str & prefix_r )
1027  { return( ::strncasecmp( str_r, prefix_r, prefix_r.size() ) == 0 ); }
1028 
1030  inline std::string stripPrefix( const C_Str & str_r, const C_Str & prefix_r )
1031  { return( hasPrefix( str_r, prefix_r ) ? str_r + prefix_r.size() : str_r.c_str() ); }
1033  inline std::string stripPrefixCI( const C_Str & str_r, const C_Str & prefix_r )
1034  { return( hasPrefixCI( str_r, prefix_r ) ? str_r + prefix_r.size() : str_r.c_str() ); }
1035 
1037  inline bool hasSuffix( const C_Str & str_r, const C_Str & suffix_r )
1038  { return( str_r.size() >= suffix_r.size() && ::strncmp( str_r + str_r.size() - suffix_r.size() , suffix_r, suffix_r.size() ) == 0 ); }
1040  inline bool hasSuffixCI( const C_Str & str_r, const C_Str & suffix_r )
1041  { return( str_r.size() >= suffix_r.size() && ::strncasecmp( str_r + str_r.size() - suffix_r.size() , suffix_r, suffix_r.size() ) == 0 ); }
1042 
1044  inline std::string stripSuffix( const C_Str & str_r, const C_Str & suffix_r )
1045  {
1046  if ( hasSuffix( str_r, suffix_r ) )
1047  return std::string( str_r, str_r.size() - suffix_r.size() );
1048  return str_r.c_str();
1049  }
1051  inline std::string stripSuffixCI( const C_Str & str_r, const C_Str & suffix_r )
1052  {
1053  if ( hasSuffixCI( str_r, suffix_r ) )
1054  return std::string( str_r, str_r.size() - suffix_r.size() );
1055  return str_r.c_str();
1056  }
1057 
1059  inline std::string::size_type commonPrefix( const C_Str & lhs, const C_Str & rhs )
1060  {
1061  const char * lp = lhs.c_str();
1062  const char * rp = rhs.c_str();
1063  std::string::size_type ret = 0;
1064  while ( *lp == *rp && *lp != '\0' )
1065  { ++lp, ++rp, ++ret; }
1066  return ret;
1067  }
1069  inline std::string::size_type commonPrefixCI( const C_Str & lhs, const C_Str & rhs )
1070  {
1071  const char * lp = lhs.c_str();
1072  const char * rp = rhs.c_str();
1073  std::string::size_type ret = 0;
1074  while ( tolower(*lp) == tolower(*rp) && *lp != '\0' )
1075  { ++lp, ++rp, ++ret; }
1076  return ret;
1077  }
1078 
1079 
1081  inline bool startsWith( const C_Str & str_r, const C_Str & prefix_r )
1082  { return hasPrefix( str_r, prefix_r ); }
1084  inline bool startsWithCI( const C_Str & str_r, const C_Str & prefix_r )
1085  { return hasPrefixCI( str_r, prefix_r ); }
1086 
1088  inline bool endsWith( const C_Str & str_r, const C_Str & prefix_r )
1089  { return hasSuffix( str_r, prefix_r ); }
1091  inline bool endsWithCI( const C_Str & str_r, const C_Str & prefix_r )
1092  { return hasSuffixCI( str_r, prefix_r ); }
1094  } // namespace str
1096 
1097  // drag into zypp:: namespace
1098  using str::asString;
1099 
1100 } // namespace zypp
1102 #endif // ZYPP_BASE_STRING_H
zypp::str::startsWithCI
bool startsWithCI(const C_Str &str_r, const C_Str &prefix_r)
Definition: String.h:1084
zypp::str::octstring
std::string octstring(char n, int w=4)
Definition: String.h:345
zypp::str::commonPrefix
std::string::size_type commonPrefix(const C_Str &lhs, const C_Str &rhs)
Return size of the common prefix of lhs and rhs.
Definition: String.h:1059
zypp::str::startsWith
bool startsWith(const C_Str &str_r, const C_Str &prefix_r)
alias for hasPrefix
Definition: String.h:1081
zypp::str::strToTriBool
TriBool strToTriBool(const C_Str &str)
Parse str into a bool if it's a legal true or false string; else indterminate.
Definition: String.cc:93
zypp::str::Format::Format
Format(const std::string &format_r)
Definition: String.h:252
zypp::str::containsCI
bool containsCI(const C_Str &str_r, const C_Str &val_r)
Locate substring case insensitive.
Definition: String.h:990
zypp::str::hexstring
std::string hexstring(char n, int w=4)
Definition: String.h:321
zypp::str::gsubFun
std::string gsubFun(const std::string &str_r, const std::string &from_r, function< std::string()> to_r)
Definition: String.cc:347
zypp::str::splitFieldsEscaped
unsigned splitFieldsEscaped(const C_Str &line_r, TOutputIterator result_r, const C_Str &sepchars_r=":")
Split line_r into fields handling also escaped separators.
Definition: String.h:760
zypp::str::SafeBuf::asString
std::string asString() const
Definition: String.h:192
zypp::str::gsub
std::string gsub(const std::string &str_r, const std::string &from_r, const std::string &to_r)
Return a string with all occurrences of from_r replaced with to_r.
Definition: String.cc:324
zypp::C_Str::operator<<
std::ostream & operator<<(std::ostream &str, const C_Str &obj)
Stream output.
Definition: String.h:121
zypp::asUserString
std::string asUserString(const Tp &val_r)
Request a human readable (translated) string representation of Tp [Tp.asUserString()] Classes may imp...
Definition: String.h:40
zypp::C_Str::size_type
std::string::size_type size_type
Definition: String.h:93
zypp::C_Str::C_Str
C_Str()
Definition: String.h:96
zypp::str::joinEscaped
std::string joinEscaped(TIterator begin, TIterator end, const char sep_r=' ')
Join strings using separator sep_r, quoting or escaping the values.
Definition: String.h:794
zypp::str::stripSuffixCI
std::string stripSuffixCI(const C_Str &str_r, const C_Str &suffix_r)
Definition: String.h:1051
zypp::str::Format::asString
std::string asString() const
Definition: String.h:259
zypp::str::binstring
std::string binstring(TInt val_r)
String representation of number as bit-string with leading '0's.
Definition: String.h:361
zypp::str::Format::operator%
Format & operator%(Tp &&arg)
Definition: String.h:255
zypp::str::strToTrue
bool strToTrue(const C_Str &str)
Parsing boolean from string.
Definition: String.cc:63
zypp::str::receiveUpTo
std::string receiveUpTo(std::istream &str, const char delim_r, bool returnDelim_r)
Return stream content up to the next ocurrence of delim_r or EOF delim_r, if found,...
Definition: String.cc:488
zypp::str::Format::fmter
boost::format & fmter()
Definition: String.h:263
zypp::str::strToBool
bool strToBool(const C_Str &str, bool default_r)
Parse str into a bool depending on the default value.
Definition: String.h:426
zypp::str::Trim
Trim
To define how to trim.
Definition: String.h:493
zypp::str::autoPrefix0
std::ostream & autoPrefix0(std::ostream &str, const std::string &text_r, function< std::string()> fnc_r)
Definition: String.h:898
boost
Boost libraries.
PtrTypes.h
zypp::str::strerror
std::string strerror(int errno_r)
Return string describing the error_r code.
Definition: String.cc:53
zypp::str::TRIM
@ TRIM
Definition: String.h:497
zypp::str::hexencode
std::string hexencode(const C_Str &str_r)
Encode all characters other than [a-zA-Z0-9] as XX.
Definition: String.cc:124
zypp::str::Str::str
std::string str() const
Definition: String.h:219
zypp::str::split
unsigned split(const C_Str &line_r, TOutputIterator result_r, const C_Str &sepchars_r=" \t", const Trim trim_r=NO_TRIM)
Split line_r into words.
Definition: String.h:527
zypp::C_Str::isNull
bool isNull() const
Definition: String.h:103
zypp::str::Str::stream
const std::ostream & stream() const
Definition: String.h:221
zypp::str::Format::fmter
const boost::format & fmter() const
Definition: String.h:262
zypp::str::NO_TRIM
@ NO_TRIM
Definition: String.h:494
zypp::str::SafeBuf::_buf
char * _buf
Definition: String.h:189
zypp::str::gapify
std::string gapify(std::string inp_r, std::string::size_type gap_r=1, char gapchar=' ')
Enhance readability: insert gaps at regular distance.
Definition: String.h:476
zypp::str::R_TRIM
@ R_TRIM
Definition: String.h:496
zypp::str::SafeBuf::~SafeBuf
~SafeBuf()
Definition: String.h:191
zypp::str::bEscape
std::string bEscape(std::string str_r, const C_Str &special_r)
Return str_r with '\'-escaped chars occurring in special_r (and '\').
Definition: String.cc:394
zypp::str::Format::operator<<
std::ostream & operator<<(std::ostream &str, const Format &obj)
Stream output.
Definition: String.h:270
zypp::str::Str::operator<<
std::ostream & operator<<(std::ostream &str, const Str &obj)
Stream output.
Definition: String.h:231
zypp::str::contains
bool contains(const C_Str &str_r, const C_Str &val_r)
Locate substring case sensitive.
Definition: String.h:987
zypp::str::rtrim
std::string rtrim(const std::string &s)
Definition: String.h:508
zypp::str::ltrim
std::string ltrim(const std::string &s)
Definition: String.h:503
zypp::str::Format::Format
Format()
Definition: String.h:251
zypp::str::replaceAll
std::string & replaceAll(std::string &str_r, const std::string &from_r, const std::string &to_r)
Replace all occurrences of from_r with to_r in str_r (inplace).
Definition: String.cc:330
zypp::C_Str::empty
bool empty() const
Definition: String.h:104
zypp::str::appendEscaped
void appendEscaped(std::string &str_r, const C_Str &next_r, const char sep_r=' ')
Escape next_r and append it to str_r using separator sep_r.
Definition: String.h:918
zypp::C_Str::C_Str
C_Str(const char *c_str_r)
Definition: String.h:98
zypp::str::form
std::string form(const char *format,...) __attribute__((format(printf
Printf style construction of std::string.
Definition: String.cc:36
zypp::str::splitEscaped
unsigned splitEscaped(const C_Str &line_r, TOutputIterator result_r, const C_Str &sepchars_r=" \t", bool withEmpty=false)
Split line_r into words with respect to escape delimeters.
Definition: String.h:591
zypp::str::strToBoolNodefault
bool strToBoolNodefault(const C_Str &str, bool &return_r)
Parse str into a bool if it's a legal true or false string.
Definition: String.h:433
zypp::str::commonPrefixCI
std::string::size_type commonPrefixCI(const C_Str &lhs, const C_Str &rhs)
Definition: String.h:1069
zypp::str::replaceAllFun
std::string & replaceAllFun(std::string &str_r, const std::string &from_r, function< std::string()> to_r)
Definition: String.cc:353
zypp
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:2
zypp::str::numstring
std::string numstring(char n, int w=0)
Definition: String.h:286
zypp::str::join
std::string join(TIterator begin, TIterator end, const C_Str &sep_r=" ")
Join strings using separator sep_r (defaults to BLANK).
Definition: String.h:772
zypp::str::stripFirstWord
std::string stripFirstWord(std::string &line, const bool ltrim_first)
Definition: String.cc:263
zypp::str::escape
std::string escape(const C_Str &str_r, const char sep_r)
Escape desired character c using a backslash.
Definition: String.cc:371
zypp::str::toLower
std::string toLower(const std::string &s)
Return lowercase version of s.
Definition: String.cc:177
zypp::C_Str::C_Str
C_Str(char *c_str_r)
Definition: String.h:97
zypp::str::rxEscapeGlob
std::string rxEscapeGlob(std::string str_r)
Escape GLOB str_r for use in a regex (not anchored by "^" or "$").
Definition: String.cc:420
zypp::str::compareCI
int compareCI(const C_Str &lhs, const C_Str &rhs)
Definition: String.h:980
zypp::str::Str::stream
std::ostream & stream()
Definition: String.h:222
zypp::C_Str
Convenience char* constructible from std::string and char*, it maps (char*)0 to an empty string.
Definition: String.h:91
zypp::str::Str
Convenient building of std::string via std::ostringstream Basically a std::ostringstream autoconverti...
Definition: String.h:209
zypp::str::rxEscapeStr
std::string rxEscapeStr(std::string str_r)
Escape plain STRING str_r for use in a regex (not anchored by "^" or "$").
Definition: String.cc:415
zypp::str::Str::_str
std::ostringstream _str
Definition: String.h:227
zypp::str::Str::asString
std::string asString() const
Definition: String.h:218
zypp::str::hasPrefixCI
bool hasPrefixCI(const C_Str &str_r, const C_Str &prefix_r)
Definition: String.h:1026
zypp::str::hasSuffix
bool hasSuffix(const C_Str &str_r, const C_Str &suffix_r)
Return whether str_r has suffix suffix_r.
Definition: String.h:1037
zypp::str::Format::str
std::string str() const
Definition: String.h:260
zypp::str::getline
std::string getline(std::istream &str, const Trim trim_r)
Return stream content up to (but not returning) the next newline.
Definition: String.cc:478
zypp::str::SafeBuf::SafeBuf
SafeBuf()
Definition: String.h:190
zypp::str::stripLastWord
std::string stripLastWord(std::string &line, const bool rtrim_first)
Definition: String.cc:296
zypp::str::stripPrefix
std::string stripPrefix(const C_Str &str_r, const C_Str &prefix_r)
Strip a prefix_r from str_r and return the resulting string.
Definition: String.h:1030
zypp::str::hasSuffixCI
bool hasSuffixCI(const C_Str &str_r, const C_Str &suffix_r)
Definition: String.h:1040
zypp::str::strToFalse
bool strToFalse(const C_Str &str)
Return false if str is 0, false, no, off, never.
Definition: String.cc:81
zypp::str::splitFields
unsigned splitFields(const C_Str &line_r, TOutputIterator result_r, const C_Str &sepchars_r=":")
Split line_r into fields.
Definition: String.h:721
zypp::str::stripSuffix
std::string stripSuffix(const C_Str &str_r, const C_Str &suffix_r)
Strip a suffix_r from str_r and return the resulting string.
Definition: String.h:1044
zypp::str::endsWith
bool endsWith(const C_Str &str_r, const C_Str &prefix_r)
alias for hasSuffix
Definition: String.h:1088
std
Definition: Arch.h:348
for_
#define for_(IT, BEG, END)
Convenient for-loops using iterator.
Definition: Easy.h:28
zypp::str::Str::operator<<
Str & operator<<(std::ostream &(*iomanip)(std::ostream &))
Definition: String.h:214
zypp::C_Str::C_Str
C_Str(const boost::string_ref &str_r)
Definition: String.h:100
zypp::str::asString
const std::string & asString(const std::string &t)
Global asString() that works with std::string too.
Definition: String.h:136
zypp::C_Str::size
size_type size() const
Definition: String.h:105
Function.h
zypp::C_Str::_sze
size_type _sze
Definition: String.h:117
zypp::str::endsWithCI
bool endsWithCI(const C_Str &str_r, const C_Str &prefix_r)
Definition: String.h:1091
zypp::sat::detail::size_type
SolvableIdType size_type
Definition: PoolMember.h:126
zypp::str::L_TRIM
@ L_TRIM
Definition: String.h:495
zypp::str::stripPrefixCI
std::string stripPrefixCI(const C_Str &str_r, const C_Str &prefix_r)
Definition: String.h:1033
zypp::str::autoPrefix
std::ostream & autoPrefix(std::ostream &str, const std::string &text_r, function< std::string(const char *, const char *)> fnc_r)
Prefix lines by string computed by function taking line begin/end [std::string(const char*,...
Definition: String.h:883
zypp::str::hexdecode
std::string hexdecode(const C_Str &str_r)
Decode hexencoded XX sequences.
Definition: String.cc:145
zypp::C_Str::_val
const char *const _val
Definition: String.h:116
zypp::str::Format
Convenient building of std::string with boost::format.
Definition: String.h:250
str
String related utilities and Regular expression matching.
zypp::str::toUpper
std::string toUpper(const std::string &s)
Return uppercase version of s.
Definition: String.cc:200
zypp::str::Str::operator<<
Str & operator<<(Tp &&val)
Definition: String.h:211
Easy.h
zypp::TriBool
boost::logic::tribool TriBool
3-state boolean logic (true, false and indeterminate).
Definition: String.h:30
zypp::str::hasPrefix
bool hasPrefix(const C_Str &str_r, const C_Str &prefix_r)
Return whether str_r has prefix prefix_r.
Definition: String.h:1023
zypp::str::Str::clear
void clear()
Definition: String.h:224
zypp::C_Str::C_Str
C_Str(const std::string &str_r)
Definition: String.h:99
zypp::str::trim
std::string trim(const std::string &s, const Trim trim_r)
Definition: String.cc:223
zypp::str::printIndented
std::ostream & printIndented(std::ostream &str, const std::string &text_r, const std::string &indent_r=" ", unsigned maxWitdh_r=0)
Indent by string [" "] optionally wrap.
Definition: String.h:841
zypp::str::SafeBuf
Assert free called for allocated char *.
Definition: String.h:188
zypp::str::strtonum
TInt strtonum(const C_Str &str)
Parsing numbers from string.
Definition: String.h:385
zypp::str::Format::_fmter
boost::format _fmter
Definition: String.h:266
zypp::C_Str::c_str
const char * c_str() const
Definition: String.h:113