1 /* 2 Redistribution and use in source and binary forms, with or without 3 modification, are permitted provided that the following conditions are met: 4 5 * Redistributions of source code must retain the above copyright 6 notice, this list of conditions and the following disclaimer. 7 8 * Redistributions in binary form must reproduce the above copyright 9 notice, this list of conditions and the following disclaimer in the 10 documentation and/or other materials provided with the distribution. 11 12 * Neither the name of "The Computer Language Benchmarks Game" nor the 13 name of "The Computer Language Shootout Benchmarks" nor the names of 14 its contributors may be used to endorse or promote products derived 15 from this software without specific prior written permission. 16 17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * The Computer Language Benchmarks Game 32 * http://shootout.alioth.debian.org 33 * 34 * contributed by Bob W 35 */ 36 37 #include <stdio.h> 38 #include <stdlib.h> 39 40 #define JBFSIZE 82 // line input buffer size 41 #define QBFSIZE 5200 // output buffer initial size 42 #define Z16 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" 43 #define V32 "\0TVGH\0\0CD\0\0M\0KN\0\0\0YSA\0BW\0R\0\0\0\0\0\0" 44 #define VALL Z16 Z16 Z16 Z16 V32 V32 Z16 Z16 Z16 Z16 Z16 Z16 Z16 Z16 45 46 int errex(char *s, int n) { // error message+value, return 1 47 fprintf(stderr,"\n*** Error: %s [%d]!\n", s, n); 48 return 1; 49 } 50 51 int main () { // ***** main ***** 52 char *pj, *pq, *pr; // buffer pointers: inp,out,/out 53 char *jjj = malloc(JBFSIZE); // allocate input line buffer 54 char *qqq = malloc(QBFSIZE); // output buffer (dyn. size) 55 char *pqstop = qqq+QBFSIZE; // end-of-buffer pointer 56 char xtab[256] = VALL; // char conversion table 57 58 if (!jjj || !qqq) 59 return errex("Buffer allocation", !jjj + !qqq); 60 pj = fgets(jjj,JBFSIZE,stdin); // fetch 1st line 61 if (!pj) 62 return errex("No input data",0); 63 if (*jjj != '>') 64 return errex("1st char not '>'", 0); 65 66 while (pj) { // MAIN LOOP: process data 67 fputs(jjj, stdout); // output ID line 68 69 for (pq=qqq+1, pr=pqstop; ; pq++) { // LOOP: fill output buffer 70 pj = fgets(jjj, JBFSIZE, stdin); // get line from stdin 71 if (!pj || (*jjj=='>')) break; // EOF or new ID line 72 if (pr <= (pq+61)) { // need to resize buffer 73 char *newstop = pqstop + 12777888; 74 char *newptr = realloc(qqq, newstop-qqq); 75 if (!newptr) 76 return errex("Out of memory", 0); 77 if (newptr != qqq) { // new base: adj. pointers 78 size_t x = newptr-qqq; // offset for pointer update 79 pq+=x; pr+=x; qqq+=x; 80 newstop+=x; pqstop+=x; 81 } 82 pr = __builtin_memmove(newstop-(pqstop-pr), pr, pqstop-pr); 83 pqstop = newstop; // buffer resize complete 84 } 85 while (*pj) { // LOOP: conv. & revert line 86 char c = xtab[(unsigned char)(*pj++)]; 87 if (c) // conversion valid 88 *(--pr) = c; 89 } 90 } 91 92 for (pq = qqq; pr<pqstop; ) { // LOOP: format output 93 size_t x = (pqstop-pr)<60 ? pqstop-pr : 60; 94 __builtin_memmove(pq,pr,x); // move line to free space 95 pr+=x; pq+=x; *(pq++) = 0xA; // adjust pointers, add LF 96 } 97 fwrite(qqq, 1, pq-qqq, stdout); // output converted data 98 } 99 return 0; 100 } 101
