diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/game/bg_lib.c | 91 |
1 files changed, 80 insertions, 11 deletions
diff --git a/src/game/bg_lib.c b/src/game/bg_lib.c index 237a99da..9b4f390e 100644 --- a/src/game/bg_lib.c +++ b/src/game/bg_lib.c @@ -1607,13 +1607,55 @@ double fabs( double x ) return x < 0 ? -x : x; } +unsigned int _hextoi( const char **stringPtr ) +{ + unsigned int value; + int c; + int i; + const char *string; + + string = *stringPtr; + + // skip whitespace + while( *string <= ' ' ) + { + if( !*string ) + return 0; + string++; + } + + value = 0; + i = 0; + while( i++ < 8 && ( c = *string++ ) ) + { + if ( c >= '0' && c <= '9' ) + { + value = value * 16 + c - '0'; + continue; + } + else if ( c >= 'a' && c <= 'f' ) + { + value = value * 16 + 10 + c - 'a'; + continue; + } + else if ( c >= 'A' && c <= 'F' ) + { + value = value * 16 + 10 + c - 'A'; + continue; + } + else + break; + } + *stringPtr = string; + return value; +} //========================================================= #define ALT 0x00000001 /* alternate form */ -#define HEXPREFIX 0x00000002 /* add 0x or 0X prefix */ +#define HEX 0x00000002 /* hexadecimal */ #define LADJUST 0x00000004 /* left adjustment */ #define LONGDBL 0x00000008 /* long double */ #define LONGINT 0x00000010 /* long integer */ @@ -1630,22 +1672,40 @@ void AddInt( char **buf_p, int val, int width, int flags ) { char text[ 32 ]; int digits; - int signedVal; char *buf; digits = 0; - signedVal = val; - if( val < 0 ) - val = -val; - do + if( flags & HEX ) { - text[ digits++ ] = '0' + val % 10; - val /= 10; - } while( val ); + char c; + int n = 0; - if( signedVal < 0 ) - text[ digits++ ] = '-'; + while( n < 32 ) + { + c = "0123456789abcdef"[ ( val >> n ) & 0xF ]; + n += 4; + if( c == '0' && !digits ) + continue; + text[ digits++ ] = c; + } + text[ digits ] = '\0'; + } + else + { + int signedVal = val; + + if( val < 0 ) + val = -val; + do + { + text[ digits++ ] = '0' + val % 10; + val /= 10; + } while( val ); + + if( signedVal < 0 ) + text[ digits++ ] = '-'; + } buf = *buf_p; @@ -1902,6 +1962,12 @@ reswitch: AddVec3_t( &buf_p, (vec_t *)*arg, width, prec ); arg++; break; + + case 'x': + flags |= HEX; + AddInt( &buf_p, *arg, width, prec ); + arg++; + break; case '%': *buf_p++ = ch; @@ -1951,6 +2017,9 @@ int sscanf( const char *buffer, const char *fmt, ... ) case 'f': *(float *)*arg = _atof( &buffer ); break; + case 'x': + **arg = _hextoi( &buffer ); + break; } arg++; |