campo-sirio/cb/source/s4str.cpp
alex af15e0698b Codebase
git-svn-id: svn://10.65.10.50/trunk@4679 c028cbd2-c16b-5b4b-a496-9718f37d4682
1997-06-16 13:01:08 +00:00

750 lines
14 KiB
C++
Executable File

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