-/*
- PROJECT: FlowerSoft C++ library
- FILE : string-convert.cc
-
---*/
-
-
-#include <assert.h>
-#include <limits.h>
-#include "libc-extension.hh"
-#include "string.hh"
-#include "string-convert.hh"
-
-/**
- a safe length for stringconversion buffers
-
- worst case would be %f printing HUGE (or 1/HUGE), which is approx
- 2e318, this number would have approx 318 zero's in its string.
-
- Should enlarge buff dynamically.
- @see
- man 3 snprintf
- */
-static const int STRING_BUFFER_LEN=1024;
-
-String
-String_convert::bin2hex_str( String bin_str )
-{
- String str;
- Byte const* byte_c_l = bin_str.byte_c_l();
- for ( int i = 0; i < bin_str.length_i(); i++ ) {
- str += (char)nibble2hex_byte( *byte_c_l >> 4 );
- str += (char)nibble2hex_byte( *byte_c_l++ );
- }
- return str;
-}
-
-int
-String_convert::bin2_i( String bin_str )
-{
- assert( bin_str.length_i() <= 4 );
-
- int result_i = 0;
- for ( int i = 0; i < bin_str.length_i(); i++ ) {
- result_i <<= 8;
- result_i += (Byte)bin_str[ i ];
- }
- return result_i;
-}
-
-// breendet imp from String
-int
-String_convert::dec2_i( String dec_str )
-{
- if ( !dec_str.length_i() )
- return 0;
-
- long l = 0;
- int conv = sscanf( dec_str.ch_c_l(), "%ld", &l );
- assert( conv );
-
- return (int)l;
-}
-
-String
-String_convert::i64_str( I64 i64, char const* fmt)
-{
- char buffer[STRING_BUFFER_LEN];
- snprintf(buffer, STRING_BUFFER_LEN,
- (fmt ? fmt : "%Ld"), i64 ); // assume radix 10
- return String(buffer);
-
-}
-// breendet imp from String
-double
-String_convert::dec2_f( String dec_str )
-{
- if ( !dec_str.length_i() )
- return 0;
- double d = 0;
- int conv = sscanf( dec_str.ch_c_l(), "%lf", &d );
- assert( conv );
- return d;
-}
-
-int
-String_convert::hex2bin_i( String hex_str, String& bin_str_r )
-{
- if ( hex_str.length_i() % 2 )
- hex_str = "0" + hex_str;
-
- bin_str_r = "";
- Byte const* byte_c_l= hex_str.byte_c_l();
- int i = 0;
- while ( i < hex_str.length_i() ) {
- int high_i = hex2nibble_i( *byte_c_l++ );
- int low_i = hex2nibble_i( *byte_c_l++ );
- if ( high_i < 0 || low_i < 0 )
- return 1; // illegal char
- bin_str_r += String( (char)( high_i << 4 | low_i ), 1 );
- i += 2;
- }
- return 0;
-}
-
-String
-String_convert::hex2bin_str( String hex_str )
-{
- String str;
-// silly, asserts should alway be "on"!
-// assert( !hex2bin_i( hex_str, str ) );
- int error_i = hex2bin_i( hex_str, str );
- assert( !error_i );
- return str;
-}
-
-int
-String_convert::hex2nibble_i( Byte byte )
-{
- if ( byte >= '0' && byte <= '9' )
- return byte - '0';
- if ( byte >= 'A' && byte <= 'F' )
- return byte - 'A' + 10;
- if ( byte >= 'a' && byte <= 'f')
- return byte - 'a' + 10;
- return -1;
-}
-
-// stupido. Should use int_str()
-String
-String_convert::i2dec_str( int i, int length_i, char ch )
-{
- char fill_ch = ch;
- if ( fill_ch)
- fill_ch = '0';
-
- // ugh
- String dec_str( i );
-
- // ugh
- return String( fill_ch, length_i - dec_str.length_i() ) + dec_str;
-}
-
-
-// stupido. Should use int_str()
-String
-String_convert::u2hex_str( unsigned u, int length_i, char fill_ch )
-{
- String str;
- if ( !u )
- str = "0";
-
-#if 1 // both go...
- while ( u ) {
- str = String( (char)( ( u % 16 )["0123456789abcdef"] ) ) + str;
- u /= 16;
- }
-#else
- str += int_str( u, "%x" );
-#endif
-
- str = String( fill_ch, length_i - str.length_i() ) + str;
- while ( ( str.length_i() > length_i ) && ( str[ 0 ] == 'f' ) )
- str = str.mid_str( 2, INT_MAX );
-
- return str;
-}
-
-String
-String_convert::i2hex_str( int i, int length_i, char fill_ch )
-{
- return u2hex_str( (unsigned)i, length_i, fill_ch );
-}
-
-Byte
-String_convert::nibble2hex_byte( Byte byte )
-{
- if ( ( byte & 0x0f ) <= 9 )
- return ( byte & 0x0f ) + '0';
- else
- return ( byte & 0x0f ) - 10 + 'a';
-}
-/**
- Convert an integer to a string
-
- @param
- #fmt# is a printf style format, default assumes "%d" as format.
- */
-String
-String_convert::int_str(int i, char const* fmt)
-{
- char buffer[STRING_BUFFER_LEN];
- snprintf(buffer, STRING_BUFFER_LEN,
- (fmt ? fmt : "%d"), i ); // assume radix 10
- return String(buffer);
-}
-
-/**
- Convert a double to a string.
-
- @param #fmt# is a printf style format, default assumes "%lf" as format
- */
-String
-String_convert::double_str(double f, char const* fmt)
-{
- char buf[STRING_BUFFER_LEN];
-
- snprintf(buf, STRING_BUFFER_LEN, fmt ? fmt : "%f", f);
- return buf;
-}
-
-/**
- Make a string from a single character.
-
- @param
- #n# is a repetition count, default value is 1
- */
-String
-String_convert::char_str(char c, int n)
-{
- n = n >= 0 ? n : 0;
- char* ch_p = new char[ n ];
- memset( ch_p, c, n );
- String s((Byte*)ch_p, n);
- delete ch_p;
- return s;
-}
-
-String
-String_convert::rational_str(Rational r)
-{
- char * n = Itoa(r.numerator()); // LEAK????
-
- String s = n;
- if (r.denominator() != 1) {
- char * d = Itoa(r.denominator());
- s += String( '/' ) + String(d);
- //delete d;
- }
-/* delete n;
- */
- return s;
-}
-
-String
-String_convert::pointer_str(const void *l)
-{
- I64 i64 = (I64)l;
- return String_convert::i64_str(i64, "0x%0Lx");
-}
projects / lilypond.git / commitdiff
