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#include <stdio.h>
#include <stdlib.h>
#include "mystdlib.h"
#define HUGEBLOCK (1024*1024*256)
#define ZIP_FIELD 3
#define STREET_FIELD 5
int rt_strcmp( uint8_t *a, uint8_t *b ) {
while( ( *a != '\n' ) && ( *b != '\n' ) && ( *a == *b ) ) ++a, ++b;
if( *a == *b ) return 0;
return -1;
}
size_t rt_strcpy( uint8_t *dest, uint8_t *src ) {
uint8_t *d = dest;
while( *src != '\n' )
*dest++ = *src++;
*dest++ = '\n';
return dest - d;
}
size_t rt_strlen( uint8_t *str ) {
uint8_t *s = str;
while( *str++ != '\n' );
return str - s;
}
int main( int argc, char **argv ) {
MAP file = map_file( argv[1], 1 );
uint8_t *out, *in;
size_t last = 3, off = 0, out_off = 0;
int start, end, copy;
(void)argc;
out = malloc( HUGEBLOCK );
if( !file || !out )
exit(1);
in = file->addr;
start = 10 * ( in[off] - '0' ) + in[off+1] - '0';
end = start - 1;
while( off < file->size ) {
int issue = 10 * ( in[off] - '0' ) + in[off+1] - '0';
off += 3;
copy = 1;
// fprintf( stderr, "issue: %02d start %02d end %02d last %08d off %08d", issue, start, end, last, off );
switch ( rt_strcmp( in + last, in + off ) ) {
case 1:
last = off;
case 0:
case 2:
if (issue == end + 1 ) copy = 0, end++;
if (issue == end ) copy = 0;
break;
default:
break;
}
// fprintf( stderr, " copy: %d\n", copy );
if( copy) {
out_off += sprintf( (char*)out + out_off, "%02d%02d\a", start, end );
out_off += rt_strcpy( out + out_off, in + last );
start = issue; end = issue;
last = off;
}
off += rt_strlen( in + off );
if( out_off + 8192 * 2 > HUGEBLOCK ) {
(void)fwrite( out, out_off, 1, stdout );
out_off = 0;
}
}
return 0;
}
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