koi2alt.c revision 33088
1/* 2 * Copyright (C) 1993-98 by Andrey A. Chernov, Moscow, Russia. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* 28 * KOI8-R -> CP866 conversion filter (Russian character sets) 29 */ 30 31#include <sys/types.h> 32#include <signal.h> 33#include <stdio.h> 34#include <unistd.h> 35 36int length = 66; 37int lines; 38 39char *koi2alt[] = { 40/* 0 1 2 3 4 5 6 7 */ 41/* 8 9 A B C D E F */ 42/* 8 */ "\xc4","\xb3","\xda","\xbf","\xc0","\xd9","\xc3","\xb4", 43 "\xc2","\xc1","\xc5","\xdf","\xdc","\xdb","\xdd","\xde", 44/* 9 */ "\xb0","\xb1","\xb2","\xb3","\xfe","\xf9","\xfb","-\b~", 45 "<\b_",">\b_","\xff","\xb3","\xf8","2\b-","\xfa",":\b-", 46/* A */ "\xcd","\xba","\xd5","\xf1","\xd6","\xc9","\xb8","\xb7", 47 "\xbb","\xd4","\xd3","\xc8","\xbe","\xbd","\xbc","\xc6", 48/* B */ "\xc7","\xcc","\xb5","\xf0","\xb6","\xb9","\xd1","\xd2", 49 "\xcb","\xcf","\xd0","\xca","\xd8","\xd7","\xce","c\b_", 50/* C */ "\xee","\xa0","\xa1","\xe6","\xa4","\xa5","\xe4","\xa3", 51 "\xe5","\xa8","\xa9","\xaa","\xab","\xac","\xad","\xae", 52/* D */ "\xaf","\xef","\xe0","\xe1","\xe2","\xe3","\xa6","\xa2", 53 "\xec","\xeb","\xa7","\xe8","\xed","\xe9","\xe7","\xea", 54/* E */ "\x9e","\x80","\x81","\x96","\x84","\x85","\x94","\x83", 55 "\x95","\x88","\x89","\x8a","\x8b","\x8c","\x8d","\x8e", 56/* F */ "\x8f","\x9f","\x90","\x91","\x92","\x93","\x86","\x82", 57 "\x9c","\x9b","\x87","\x98","\x9d","\x99","\x97","\x9a" 58}; 59 60int main(int argc, char *argv[]) 61{ 62 int c, i; 63 char *cp; 64 65 while (--argc) { 66 if (*(cp = *++argv) == '-') { 67 switch (*++cp) { 68 case 'l': 69 if ((i = atoi(++cp)) > 0) 70 length = i; 71 break; 72 } 73 } 74 } 75 76 while ((c = getchar()) != EOF) { 77 if (c == '\031') { 78 if ((c = getchar()) == '\1') { 79 lines = 0; 80 fflush(stdout); 81 kill(getpid(), SIGSTOP); 82 continue; 83 } else { 84 ungetc(c, stdin); 85 c = '\031'; 86 } 87 } else if (c & 0x80) { 88 fputs(koi2alt[c & 0x7F], stdout); 89 continue; 90 } else if (c == '\n') 91 lines++; 92 else if (c == '\f') 93 lines = length; 94 putchar(c); 95 if (lines >= length) { 96 lines = 0; 97 fflush(stdout); 98 } 99 } 100 return 0; 101} 102