/*
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of "The Computer Language Benchmarks Game" nor the
name of "The Computer Language Shootout Benchmarks" nor the names of
its contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
/*
* The Computer Language Benchmarks Game
* http://shootout.alioth.debian.org
*
* contributed by Bob W
*/
#include <stdio.h>
#include <stdlib.h>
#define JBFSIZE 82 // line input buffer size
#define QBFSIZE 5200 // output buffer initial size
#define Z16 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
#define V32 "\0TVGH\0\0CD\0\0M\0KN\0\0\0YSA\0BW\0R\0\0\0\0\0\0"
#define VALL Z16 Z16 Z16 Z16 V32 V32 Z16 Z16 Z16 Z16 Z16 Z16 Z16 Z16
int errex(char *s, int n) { // error message+value, return 1
fprintf(stderr,"\n*** Error: %s [%d]!\n", s, n);
return 1;
}
int main () { // ***** main *****
char *pj, *pq, *pr; // buffer pointers: inp,out,/out
char *jjj = malloc(JBFSIZE); // allocate input line buffer
char *qqq = malloc(QBFSIZE); // output buffer (dyn. size)
char *pqstop = qqq+QBFSIZE; // end-of-buffer pointer
char xtab[256] = VALL; // char conversion table
if (!jjj || !qqq)
return errex("Buffer allocation", !jjj + !qqq);
pj = fgets(jjj,JBFSIZE,stdin); // fetch 1st line
if (!pj)
return errex("No input data",0);
if (*jjj != '>')
return errex("1st char not '>'", 0);
while (pj) { // MAIN LOOP: process data
fputs(jjj, stdout); // output ID line
for (pq=qqq+1, pr=pqstop; ; pq++) { // LOOP: fill output buffer
pj = fgets(jjj, JBFSIZE, stdin); // get line from stdin
if (!pj || (*jjj=='>')) break; // EOF or new ID line
if (pr <= (pq+61)) { // need to resize buffer
char *newstop = pqstop + 12777888;
char *newptr = realloc(qqq, newstop-qqq);
if (!newptr)
return errex("Out of memory", 0);
if (newptr != qqq) { // new base: adj. pointers
size_t x = newptr-qqq; // offset for pointer update
pq+=x; pr+=x; qqq+=x;
newstop+=x; pqstop+=x;
}
pr = __builtin_memmove(newstop-(pqstop-pr), pr, pqstop-pr);
pqstop = newstop; // buffer resize complete
}
while (*pj) { // LOOP: conv. & revert line
char c = xtab[(unsigned char)(*pj++)];
if (c) // conversion valid
*(--pr) = c;
}
}
for (pq = qqq; pr<pqstop; ) { // LOOP: format output
size_t x = (pqstop-pr)<60 ? pqstop-pr : 60;
__builtin_memmove(pq,pr,x); // move line to free space
pr+=x; pq+=x; *(pq++) = 0xA; // adjust pointers, add LF
}
fwrite(qqq, 1, pq-qqq, stdout); // output converted data
}
return 0;
}