68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
/*
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* t2inc.c
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* Copyright (C) 2007 acastro <acastro@slump>
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*
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* Distributed under terms of the MIT license.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <errno.h>
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#define MAX_W 70
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int
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main(int argc, char **argv)
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{
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(void) argc; /* unused */
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(void) argv; /* unused */
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int c = 0;
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int w = 0;
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putchar('"');
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while ((c = getchar()) != EOF) {
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/* skip whitespace */
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if ((c != ' ') && isspace(c)) continue;
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/* take care of long lines */
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if (w++ >= MAX_W) {
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printf("\"\n\"");
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w = 0;
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}
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/* escape non-printable characters */
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if (!isprint(c)) {
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printf("\\x%02x", c);
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continue;
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}
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#define C(_m, _p) case _m : printf(_p); break
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switch (c) {
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C('\\', "\\\\"); /* backslashes */
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C('"' , "\\\""); /* double quotes */
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default:
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putchar(c);
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}
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}
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printf("\"\n");
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/* check whether an error was produced */
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if (ferror(stdout)) {
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fprintf(stderr, "%s: error writing output, %s\n", argv[0], strerror(errno));
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fflush(stderr);
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exit(EXIT_FAILURE);
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}
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if ((c == EOF) && ferror(stdin)) {
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fprintf(stderr, "%s: error reading input, %s\n", argv[0], strerror(errno));
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fflush(stderr);
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exit(EXIT_FAILURE);
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}
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return EXIT_SUCCESS;
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}
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