Update tcsgrep.
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7af0b35bb1
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c20ca12750
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@ -64,6 +64,7 @@ struct tcsgrep_ctx {
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int limit;
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bool purge_long_seqs;
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bool verbose;
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bool not_tty;
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};
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static inline void
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@ -84,6 +85,28 @@ parse_int(char const *str, int *dest)
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return true;
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}
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static inline void
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print_char(int ch)
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{
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static char const *ascii_table[] = {
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"NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
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"BS", "HT", "LF", "VT", "FF", "CR", "SO", "SI",
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"DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB",
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"CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US"
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};
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if (ch == ' ') {
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printf(" SP");
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} else if (isprint(ch)) {
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printf(" %c", ch);
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} else if (ch == 0x7f) {
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printf(" DEL");
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} else if (!iscntrl(ch)) {
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printf(" \\x%02x", ch);
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} else {
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printf(" %s", ascii_table[ch]);
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}
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}
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static void
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print_generic_seq(char const *header, union ctlseqs_value *result, bool newline)
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{
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@ -91,16 +114,7 @@ print_generic_seq(char const *header, union ctlseqs_value *result, bool newline)
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char const *seq = result[1].str;
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printf("%s %zu", header, length);
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for (size_t idx = 0; idx < length; ++idx) {
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char ch = seq[idx];
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if (ch == ' ') {
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printf(" SP");
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} if (isprint(ch)) {
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printf(" %c", ch);
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} else if (ch == 0x1b) {
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printf(" ESC");
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} else {
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printf(" \\x%02x", ch);
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}
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print_char((unsigned)seq[idx]);
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}
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if (newline) {
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printf("\n");
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@ -143,8 +157,6 @@ main(int argc, char **argv)
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.prog_name = argv[0],
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.timeout = -1,
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.limit = 4096,
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.purge_long_seqs = false,
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.verbose = false,
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};
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int opt;
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@ -374,15 +386,10 @@ main(int argc, char **argv)
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return 1;
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}
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if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) {
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print_error(&ctx, "not a tty");
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return false;
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}
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struct termios old_termios;
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if (tcgetattr(STDIN_FILENO, &old_termios) != 0) {
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print_error(&ctx, "failed to get terminal attributes");
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return 1;
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}
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ctx.not_tty = true;
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} else {
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struct termios new_termios = old_termios;
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new_termios.c_cc[VMIN] = 0;
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new_termios.c_cc[VTIME] = 0;
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@ -391,6 +398,7 @@ main(int argc, char **argv)
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print_error(&ctx, "failed to set terminal attributes");
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return 1;
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}
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}
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int status = 0;
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while (true) {
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@ -409,7 +417,7 @@ main(int argc, char **argv)
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break;
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case CTLSEQS_EOF:
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printf("EOF\n");
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break;
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goto terminate;
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case CTLSEQS_PARTIAL:
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if (ctx.verbose) {
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print_generic_seq("PARTIAL", result, true);
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@ -429,7 +437,7 @@ main(int argc, char **argv)
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}
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case CTLSEQS_NOSEQ:
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print_generic_seq("NOSEQ", result, true);
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if (result[1].str[0] == 0x03) {
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if (result[1].str[0] == 0x04) {
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goto terminate;
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}
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break;
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@ -440,9 +448,10 @@ main(int argc, char **argv)
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}
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terminate:
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free(patterns);
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ctlseqs_matcher_free(matcher);
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ctlseqs_reader_free(reader);
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if (!ctx.not_tty) {
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tcsetattr(STDIN_FILENO, TCSANOW, &old_termios);
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}
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return status;
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}
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