/* 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; }