750 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			750 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C++
		
	
	
		
			Executable File
		
	
	
	
	
| /* s4str.cpp/cxx (c)Copyright Sequiter Software Inc., 1988-1996.  All rights reserved. */
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| 
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| #include "d4all.hpp"
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| #ifdef __TURBOC__
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|    #pragma hdrstop
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| #endif  /* __TUROBC__ */
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| 
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| #include <ctype.h>
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| 
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| 
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| #ifdef S4DLL
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|    static char v4buffer[257] ;
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| #else
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|    extern char v4buffer[257] ;
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| #endif
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| 
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| #ifdef E4DEBUG
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| /* Ensure the strings do not overlap */
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| void s4asser_no_overlap( Str4& s1, Str4& s2 )
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| {
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|    if ( s1.maximum() == 0  ||  s2.maximum() == 0 )  return ;
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| 
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|    unsigned s1_end_pos =  s1.maximum()-1 ;
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|    unsigned s2_end_pos =  s2.maximum()-1 ;
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| 
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|    long  s1_ptr =  long( s1.ptr() ) ;
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|    long  s2_ptr =  long( s2.ptr() ) ;
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| 
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|    if ( s1_ptr == 0  ||  s2_ptr == 0 )
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|       error4( 0, e4parm_null, E61038 ) ;
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| 
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|    long  s1_end_ptr =  s1_ptr + s1_end_pos ;
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|    long  s2_end_ptr =  s2_ptr + s2_end_pos ;
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| 
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|    if ( s1_ptr     >= s2_ptr  && s1_ptr     <= s2_end_ptr      ||
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|         s1_end_ptr >= s2_ptr  && s1_end_ptr <= s2_end_ptr      ||
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|         s2_ptr     >= s1_ptr  && s2_ptr     <= s1_end_ptr      ||
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|         s2_end_ptr >= s1_ptr  && s2_end_ptr <= s1_end_ptr )
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|       error4( 0, e4parm_null, E61038 ) ;
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| //    e4severe( e4parm, "Overlapping Strings Detected" ) ;
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| }
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| #endif
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| 
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| //Tag4 Index4::tag( char *name )
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| //{
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| //   return Tag4( index->data, name ) ;
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| //}
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| 
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| Str4::operator char()
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| {
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|    if ( len() < 1 || ptr() == 0 )  return 0 ;
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|    return  *ptr() ;
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| }
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| 
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| Str4::operator double()
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 )
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|          error4( 0, e4parm_null, E61002 ) ;
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|    #endif
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|    #ifdef __TURBOC__
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|       double d ;
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|       c4atod2( ptr(), len(), &d ) ;
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|       return d ;
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|    #else
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|      return c4atod( ptr(), len()) ;
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|    #endif
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| }
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| 
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| Str4::operator int()
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| {
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|    char *p =  ptr() ;
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|    #ifdef E4PARM_HIGH
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|       if( p == 0 )
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|          error4( 0, e4parm_null, E61003 ) ;
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|    #endif
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|    int i =  len() ;
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|    int   r =  (int) c4atol( p,i ) ;
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|    return r ;
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| }
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| 
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| Str4::operator long()
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 )
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|          error4( 0, e4parm_null, E61004 ) ;
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|    #endif
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|    return c4atol( ptr(), len()) ;
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| }
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| 
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| int Str4::operator==( Str4& s )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 || s.ptr() == 0 )
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|          error4( 0, e4parm_null, E61005 ) ;
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|    #endif
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|    unsigned l =  len() ;
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|    if ( l != s.len() )  return 0 ;
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| 
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|    if ( memcmp( ptr(), s.ptr(), l) == 0 )
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|       return 1 ;
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|    else
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|       return 0 ;
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| }
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| 
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| int Str4::operator< ( Str4& s )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 || s.ptr() == 0 )
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|          error4( 0, e4parm_null, E61006 ) ;
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|    #endif
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|    unsigned cmp_len ;
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|    int      result ;
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|    unsigned l1 =  len() ;
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|    unsigned l2 =  s.len() ;
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| 
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|    cmp_len =  (l1<l2) ? l1 : l2 ;
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|    result =  memcmp( ptr(), s.ptr(), cmp_len ) ;
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|    if ( result == 0 )  return  l1 < l2 ;
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|    return result < 0 ;
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| }
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| 
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| int Str4::operator> ( Str4& s )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 || s.ptr() == 0 )
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|          error4( 0, e4parm_null, E61008 ) ;
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|    #endif
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|    unsigned cmp_len ;
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|    int      result ;
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|    unsigned l1 =  len() ;
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|    unsigned l2 =  s.len() ;
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| 
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|    cmp_len =  (l1<l2) ? l1 : l2 ;
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|    result =  memcmp( ptr(), s.ptr(), cmp_len ) ;
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|    if ( result == 0 )  return  l1 > l2 ;
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|    return result > 0 ;
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| }
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| 
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| char& Str4::operator[] ( int index )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( index > (int)len() )
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|          error4( 0, e4parm, E61010 ) ;
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|    #endif
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|    return ptr()[index] ;
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| }
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| 
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| int Str4::add( Str4& str_from )
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| {
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|    return insert( str_from, len() ) ;
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| }
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| 
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| int Str4::add( char *ptr )
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| {
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|    Str4ptr p( ptr ) ;
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|    return insert( p, len() ) ;
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| }
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| 
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| int Str4::at( Str4& search_str )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 || search_str.ptr() == 0 )
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|          error4( 0, e4parm_null, E61015 ) ;
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|    #endif
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|    unsigned len_search =  search_str.len() ;
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|    if ( len_search == 0 )  return 0 ;
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| 
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|    unsigned str_len  =  len() ;
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|    if ( str_len < len_search )  return -1 ;
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| 
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|    unsigned last_try =  str_len - len_search ;
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|    char *str_ptr =  ptr() ;
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|    char *search_ptr =  search_str.ptr() ;
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| 
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|    for ( unsigned i = 0; i <= last_try; i++ )
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|       if ( str_ptr[i]  == *search_ptr )
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|       {
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|         unsigned j ;
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|          for ( j = 1; j < len_search; j++ )
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|             if ( str_ptr[i+j] != search_ptr[j] )  break ;
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|          if ( j >= len_search )  return int(i) ;
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|       }
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| 
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|    return -1 ;
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| }
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| 
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| int Str4::insert( Str4& str_from, unsigned pos )
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| {
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|    #ifdef E4DEBUG
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|       s4asser_no_overlap( *this, str_from ) ;
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success )
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|          return error4( 0, e4lock, E61022 ) ;
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|    #endif
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| 
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|    changed() ;
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| 
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|    unsigned  start_to_len =  len() ;
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|    #ifdef E4DEBUG
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|       if ( pos > start_to_len )
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|          error4( 0, e4parm, E61022 ) ;
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|    #endif
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|    unsigned  move_len =  start_to_len-pos ;
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| 
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|    unsigned  from_len =  str_from.len() ;
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|    long      want_to_len =  long(start_to_len) +from_len ;
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|    int rc ;
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|    if ( want_to_len > UINT_MAX )
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|       rc =  -1 ;
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|    else
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|       rc =  setLen( unsigned(want_to_len) ) ;
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| 
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|    unsigned to_len = len() ;
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| 
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|    if ( rc != 0 )
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|    {
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|       #ifdef E4DEBUG
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|          if ( to_len < start_to_len )
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|             error4( 0, e4info, E61022 ) ;
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|       #endif
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|       move_len  -=  unsigned( want_to_len - to_len ) ;
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| 
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|       unsigned space_avail =  to_len-pos ;
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|       if ( space_avail < from_len ) from_len =  space_avail ;
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|    }
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| 
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|    char *to_ptr =  ptr() ;
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|    char *to_pos =  to_ptr+pos ;
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|    memmove( to_pos+from_len, to_pos, move_len ) ;
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|    memcpy( to_pos, str_from.ptr(), from_len ) ;
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| 
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|    if ( to_len < maximum() )
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|       to_ptr[to_len] =  0 ;
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|    return rc ;
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| }
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| 
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| int Str4::assign( const char *from_ptr )
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| {
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|    return assign( from_ptr, strlen(from_ptr) ) ;
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| }
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| 
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| int Str4::assign( const char *from_ptr,const unsigned from_len )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( from_ptr == 0 )
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|          error4( 0, e4parm_null, E61012 ) ;
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|    #endif
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|    #ifdef E4DEBUG
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|       Str4len str(from_ptr, from_len) ;
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|       s4asser_no_overlap( *this, str ) ;
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success )
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|          return error4( 0, e4lock, E61012 ) ;
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|    #endif
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| 
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|    changed() ;
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| 
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|    int rc = setLen( from_len ) ;
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|    unsigned to_len, curLen ;
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|    to_len =  curLen =  len() ;
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|    if ( to_len >= from_len )
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|    {
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|       set( ' ' ) ;
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|       to_len =  from_len ;
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|       rc = r4success;
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|    }
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| 
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|    char *p = ptr() ;
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|    memcpy( p, from_ptr, to_len ) ;
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|    if ( curLen < maximum() )  p[curLen] =  0 ;
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|    return rc ;
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| }
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| 
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| int Str4::assign(const Str4& str_from )
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| {
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|    const char *t=str_from.ptr1();
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|    const int tl=str_from.len1();
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|    return assign(t,tl);
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|    //   return assign( str_from.ptr(), str_from.len() ) ;
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| }
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| 
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| void Str4::assignDouble( double d, int new_len, int dec )
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| {
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|    char *p =  ptr() ;
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| 
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|    #ifdef E4PARM_HIGH
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|       if( p == 0 ){
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|         error4( 0, e4parm_null, E61013 ) ;
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|         return;
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|         }
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success ){
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|           error4( 0, e4lock, E61013 ) ;
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|           return;
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|           }
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|    #endif
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| 
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|    changed() ;
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| 
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|    if ( new_len >= 0 )
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|       setLen( new_len ) ;
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| 
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|    unsigned l = len() ;
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| 
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|    if ( dec < 0 )  dec =  decimals() ;
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|    c4dtoa45( d, p, l, dec ) ;
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|    if ( l < maximum() )
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|       p[l] =  r4success ;
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| }
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| 
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| void Str4::assignLong( long lval, int new_len, int zeros_in_front )
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| {
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|    char *p =  ptr() ;
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| 
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|    #ifdef E4PARM_HIGH
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|       if( p == 0 ){
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|          error4( 0, e4parm_null, E61014 ) ;
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|          return;
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|          }
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success ){
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|          error4( 0, e4lock, E61014 ) ;
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|          return;
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|          }
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|    #endif
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| 
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|    changed() ;
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| 
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|    if ( new_len >= 0 )
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|       setLen(new_len) ;
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| 
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|    int l = (int) len() ;
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| 
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|    if ( zeros_in_front )
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|       c4ltoa45( lval, p, -l ) ;
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|    else
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|       c4ltoa45( lval, p, l ) ;
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| 
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|    if ( l < (int)maximum() )
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|       p[l] =  0 ;
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| }
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| 
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| int Str4::encode( char *from, char *t_to, char *t_from )
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| {
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|    #ifdef E4DEBUG
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|       s4asser_no_overlap( *this, Str4len( from, (unsigned) strlen(t_from)) ) ;
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success )
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|          return error4( 0, e4lock, E61019 ) ;
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|    #endif
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| 
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|    changed() ;
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| 
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|    if( len() < strlen( t_to ) )
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|    {
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|       if( setLen( strlen( t_to)) < 0 )
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|          return -1;
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|    }
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|    c4encode( ptr(), from, t_to, t_from ) ;
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|    return 0 ;
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| }
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| 
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| char *Str4::endPtr()
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 ){
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|          error4( 0, e4parm_null, E61020 ) ;
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|          return NULL;
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|          }
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|    #endif
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| 
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|    unsigned pos =  len() ;
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|    if ( pos == 0 ) return 0 ;
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|    pos-- ;
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|    return ptr()+pos ;
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| }
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| 
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| char *Date4::format( char *pict ) const
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| {
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|    #ifdef E4PARM_HIGH
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|       if( pict== 0 ){
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|          error4( 0, e4parm_null, E61115 ) ;
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|          return NULL;
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|          }
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|    #endif
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| 
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|    date4format( ptr1(), v4buffer, pict ) ;
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|    return v4buffer ;
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| }
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| 
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| const Str4len Str4::left( unsigned want_len ) const
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| {
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|    return substr( 0, want_len ) ;
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| }
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| 
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| unsigned Str4::len()
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| {
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|    if ( ptr() == 0 ) return 0 ;
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|    return strlen(ptr()) ;
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| }
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| 
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| unsigned Str4::len1() const
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| {
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|    if ( ptr1() == 0 ) return 0 ;
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|    return (unsigned const)strlen(ptr1()) ;
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| }
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| void Str4::lower()
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 )
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|          error4( 0, e4parm_null, E61025 ) ;
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success )
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|          error4( 0, e4lock, E61025 ) ;
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|    #endif
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| 
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|    changed() ;
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|    #ifdef S4WINDOWS
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|       #ifdef S4ANSI
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|          AnsiLower( ptr( ) ) ;
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|       #else
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|       unsigned str_len = len() ;
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|       char    *str_ptr =  ptr() ;
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|       for ( unsigned i = 0; i < str_len; i++ )
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|          str_ptr[i] =  tolower( str_ptr[i] ) ;
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|       #endif
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|    #else
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|       unsigned str_len = len() ;
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|       char    *str_ptr =  ptr() ;
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|       for ( unsigned i = 0; i < str_len; i++ )
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|          str_ptr[i] =  tolower( str_ptr[i] ) ;
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|    #endif
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|    return ;
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| }
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| 
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| unsigned Str4::ncpy( char *to, unsigned to_len )
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| {
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|    unsigned l = len() ;
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| 
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|    if ( to_len <= l )
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|    {
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|       if ( to_len-- > 0 )
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|       {
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|          memcpy( to, ptr(), to_len ) ;
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|          to[to_len] =  0 ;
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|          return to_len ;
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|       }
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|       return (unsigned) 0 ;
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|    }
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|    else
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|    {
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|       memcpy( to, ptr(), l ) ;
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|       to[l] =  0 ;
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|       return l ;
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|    }
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| }
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| 
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| int  Str4::replace( Str4& str, unsigned pos )
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| {
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|    #ifdef E4DEBUG
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|       s4asser_no_overlap( *this, str ) ;
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success )
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|          return error4( 0, e4lock, E61028 ) ;
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|    #endif
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| 
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|    changed() ;
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| 
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|    unsigned curLen =  len() ;
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|    #ifdef E4DEBUG
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|       if ( pos > curLen )
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|          return error4( 0, e4parm, E61028 ) ;
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|    #endif
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|    unsigned copy_len =  str.len() ;
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|    long to_final_len =  long(copy_len) + pos ;
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|    int rc = r4success ;
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|    if ( to_final_len > UINT_MAX )
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|       rc =  -1 ;
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|    else
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|    {
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|       if ( to_final_len > (long)curLen )
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|       {
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|          rc =  setLen( unsigned(to_final_len) ) ;
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|          curLen =  len() ;
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|       }
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|    }
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|    if ( rc < 0 )
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|       copy_len =  curLen - pos ;
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| 
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|    char *p = ptr() ;
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|    memcpy( p+pos, str.ptr(), copy_len ) ;
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|    if ( curLen < maximum() )  p[curLen] =  0 ;
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|    return rc ;
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| }
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| 
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| const Str4len Str4::right( unsigned want_len ) const
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| {
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|    unsigned curLen =  len1() ;
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|    if ( want_len > curLen )  want_len =  curLen ;
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|    return substr( curLen - want_len, want_len ) ;
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| }
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| 
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| 
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| void Str4::set( int chr_value )
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 ){
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|          error4( 0, e4parm_null, E61030 ) ;
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|          return;
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|          }
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|    #endif
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| 
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|    #ifndef S4OFF_ENFORCE_LOCK
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|       if( lockCheck( ) != r4success ){
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|          error4( 0, e4lock, E61030 ) ;
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|          return;
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|          }
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|    #endif
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| 
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|    changed() ;
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| 
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|    unsigned l =  len() ;
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|    char *p =  ptr() ;
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|    memset( p, chr_value, l ) ;
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|    if ( l < maximum() )  p[l] =  0 ;
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|    return ;
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| }
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| 
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| const char *Str4::str()
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| {
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|    ncpy( v4buffer, sizeof(v4buffer) ) ;
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|    return v4buffer ;
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| }
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| 
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| void Str4::trim()
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| {
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|    #ifdef E4PARM_HIGH
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|       if( ptr() == 0 ){
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|           error4( 0, e4parm_null, E61035 ) ;
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|           return;
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|           }
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|    #endif
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| 
 | |
|    #ifndef S4OFF_ENFORCE_LOCK
 | |
|       if( lockCheck( ) != r4success ){
 | |
|          error4( 0, e4lock, E61035 ) ;
 | |
|          return;
 | |
|          }
 | |
|    #endif
 | |
| 
 | |
|    changed() ;
 | |
| 
 | |
|    char *p =  ptr() ;
 | |
|    for ( unsigned i = len();; )
 | |
|    {
 | |
|       if ( i == 0 )  break ;
 | |
|       i-- ;
 | |
| 
 | |
|       if ( p[i] == ' ' || p[i] == 0 )
 | |
|          p[i] =  0 ;
 | |
|       else
 | |
|       {
 | |
|          setLen(i+1) ;
 | |
|          return ;
 | |
|       }
 | |
|    }
 | |
|    setLen(0) ;
 | |
|    return ;
 | |
| }
 | |
| 
 | |
| #ifdef S4USE_TRUE
 | |
| int Str4::true()
 | |
| #else
 | |
| int Str4::isTrue()
 | |
| #endif
 | |
| {
 | |
|    #ifdef E4PARM_HIGH
 | |
|       if( ptr() == 0 )
 | |
|          return error4( 0, e4parm_null, E61035 ) ;
 | |
|    #endif
 | |
| 
 | |
|    char ch =  char(*this) ;
 | |
|    if ( ch == 'Y' || ch == 'y' || ch == 'T' || ch == 't' )
 | |
|       return 1 ;
 | |
|    else
 | |
|       return 0 ;
 | |
| }
 | |
| 
 | |
| void Str4::upper()
 | |
| {
 | |
|    #ifdef E4PARM_HIGH
 | |
|       if( ptr() == 0 ){
 | |
|          error4( 0, e4parm_null, E61037 ) ;
 | |
|          return;
 | |
|          }
 | |
|    #endif
 | |
| 
 | |
|    #ifndef S4OFF_ENFORCE_LOCK
 | |
|       if( lockCheck( ) != r4success ){
 | |
|          error4( 0, e4lock, E61037 ) ;
 | |
|          return;
 | |
|          }
 | |
|    #endif
 | |
| 
 | |
|    changed() ;
 | |
|    #ifdef S4WINDOWS
 | |
|       #ifdef S4ANSI
 | |
|          AnsiUpper( ptr( ) ) ;
 | |
|       #else
 | |
|       unsigned str_len = len() ;
 | |
|       char    *str_ptr =  ptr() ;
 | |
|       for ( unsigned i = 0; i < str_len; i++ )
 | |
|          str_ptr[i] =  toupper( str_ptr[i] ) ;
 | |
|       #endif
 | |
|    #else
 | |
|       unsigned str_len = len() ;
 | |
|       char    *str_ptr =  ptr() ;
 | |
|       for ( unsigned i = 0; i < str_len; i++ )
 | |
|          str_ptr[i] =  toupper( str_ptr[i] ) ;
 | |
|    #endif
 | |
|    return ;
 | |
| }
 | |
| 
 | |
| const Str4len Str4::substr( unsigned pos, unsigned result_len ) const
 | |
| {
 | |
|    const char *t;
 | |
|    Str4len nil(0,0);
 | |
|    #ifdef E4PARM_HIGH
 | |
|       if( ptr1() == 0 ){
 | |
|          error4( 0, e4parm_null, E61034 ) ;
 | |
|          return nil;
 | |
|          }
 | |
|    #endif
 | |
|    unsigned my_len =  len1() ;
 | |
| 
 | |
|    if ( (unsigned long)pos + result_len > (unsigned long)my_len )
 | |
|    {
 | |
|       if ( pos > my_len )
 | |
|          result_len =  0 ;
 | |
|       else
 | |
|          result_len =  my_len - pos ;
 | |
|    }
 | |
|    t=ptr1()+pos;
 | |
|    return Str4len( t, result_len ) ;
 | |
| }
 | |
| 
 | |
| Str4large::Str4large()
 | |
| {
 | |
|    curLen = 0;
 | |
|    buf[0] = 0;
 | |
|    buf[255] = 0;
 | |
| }
 | |
| 
 | |
| Str4large::Str4large( char *p )
 | |
| {
 | |
|    curLen = 0;
 | |
|    buf[255] = 0;
 | |
|    assign(p);
 | |
| }
 | |
| 
 | |
| Str4large::Str4large( Str4 &s )
 | |
| {
 | |
|    curLen = 0;
 | |
|    buf[255] = 0;
 | |
|    assign(s);
 | |
| }
 | |
| 
 | |
| int Str4max::setLen( unsigned new_len )
 | |
| {
 | |
|    if ( new_len <= maxLen )
 | |
|    {
 | |
|       curLen =  new_len ;
 | |
|       if ( curLen < maxLen )
 | |
|          p[curLen] =  0 ;
 | |
|       return 0 ;
 | |
|    }
 | |
|    if ( setMax( new_len )  < 0 )
 | |
|    {
 | |
|       setMax( maxLen ) ;
 | |
|       return -1 ;
 | |
|    }
 | |
|    return setLen( new_len ) ;
 | |
| }
 | |
| 
 | |
| int  Str4ten::setLen( unsigned new_len )
 | |
| {
 | |
|    if ( new_len <= 10 )
 | |
|    {
 | |
|       curLen =  new_len ;
 | |
|       buf[curLen] = 0 ;
 | |
|       return 0 ;
 | |
|    }
 | |
|    setLen( 10 ) ;
 | |
|    return -1 ;
 | |
| }
 | |
| 
 | |
| int Str4large::setLen( unsigned new_len )
 | |
| {
 | |
|    if ( new_len <= 255 )
 | |
|    {
 | |
|       curLen =  new_len ;
 | |
|       buf[curLen] = 0 ;
 | |
|       return 0 ;
 | |
|    }
 | |
|    setLen( 255 ) ;
 | |
|    return -1 ;
 | |
| }
 | |
| 
 | |
| Str4char::Str4char( char ch )
 | |
| {
 | |
|    c = ch ;
 | |
| }
 | |
| 
 | |
| Date4::Date4()
 | |
| {
 | |
|    set( ' ' ) ;
 | |
|    dt[8] = 0 ;
 | |
| }
 | |
| 
 | |
| Date4::Date4( long l )
 | |
| {
 | |
|    date4assign(dt, l) ;
 | |
|    dt[8] = 0 ;
 | |
| }
 | |
| 
 | |
| Date4::Date4( const char *p )
 | |
| {
 | |
|    u4ncpy( dt, p, sizeof(dt) ) ;
 | |
| }
 | |
| 
 | |
| Date4::Date4(char *p,char *pict )
 | |
| {
 | |
|    date4init( dt, p, pict ) ;
 | |
| }
 |