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Introduce basic line input mode
This commit is contained in:
Martin Lund
parent
d60363a64c
commit
4801816357
8 changed files with 135 additions and 17 deletions
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@ -90,7 +90,7 @@ Options:
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--line-pulse-duration <duration> Set line pulse duration
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-n, --no-autoconnect Disable automatic connect
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-e, --local-echo Enable local echo
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--input-mode normal|hex Select input mode (default: normal)
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--input-mode normal|hex|line Select input mode (default: normal)
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--output-mode normal|hex Select output mode (default: normal)
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-t, --timestamp Enable line timestamp
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--timestamp-format <format> Set timestamp format (default: 24hour)
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7
TODO
7
TODO
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@ -26,10 +26,11 @@
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Time is in ms.
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* Line mode feature
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* Advanced line mode
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Only send line when pressing enter. Maybe even add readline support so one
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can use all the readline editing feature before sending the line.
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Current line mode only support backspace editing. Would be nice with arrow
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key navigation left/right and insert/overwrite support. Also history browsing
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pressing up/down.
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* Support for interaction using simple autoresponse strings
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15
man/tio.1.in
15
man/tio.1.in
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@ -191,11 +191,18 @@ If defining more than one flag, the flags must be comma separated.
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.RE
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.TP
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.BR " \-\-input\-mode " normal|hex
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.BR " \-\-input\-mode " normal|hex|line
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Set input mode. In hex input mode bytes can be sent by typing the
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\fBtwo-character hexadecimal\fR representation of the 1 byte value, e.g.: to
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send \fI0xA\fR you must type \fI0a\fR or \fI0A\fR.
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Set input mode.
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In normal mode input characters are sent immediately as they are typed.
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In hex input mode bytes can be sent by typing the \fBtwo-character
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hexadecimal\fR representation of the 1 byte value, e.g.: to send \fI0xA\fR you
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must type \fI0a\fR or \fI0A\fR.
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In line input mode input characters are sent when you press enter. The only
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editing feature supported in this mode is backspace.
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Default value is "normal".
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@ -131,7 +131,7 @@ _tio()
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return 0
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;;
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--input-mode)
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COMPREPLY=( $(compgen -W "normal hex" -- ${cur}) )
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COMPREPLY=( $(compgen -W "normal hex line" -- ${cur}) )
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return 0
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;;
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--output-mode)
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@ -126,7 +126,7 @@ void print_help(char *argv[])
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printf(" --line-pulse-duration <duration> Set line pulse duration\n");
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printf(" -n, --no-autoconnect Disable automatic connect\n");
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printf(" -e, --local-echo Enable local echo\n");
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printf(" --input-mode normal|hex Select input mode (default: normal)\n");
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printf(" --input-mode normal|hex|line Select input mode (default: normal)\n");
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printf(" --output-mode normal|hex Select output mode (default: normal)\n");
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printf(" -t, --timestamp Enable line timestamp\n");
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printf(" --timestamp-format <format> Set timestamp format (default: 24hour)\n");
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@ -226,6 +226,10 @@ input_mode_t input_mode_option_parse(const char *arg)
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{
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return INPUT_MODE_HEX;
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}
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else if (strcmp("line", arg) == 0)
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{
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return INPUT_MODE_LINE;
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}
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else
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{
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tio_error_printf("Invalid input mode option");
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@ -258,6 +262,8 @@ const char *input_mode_by_string(input_mode_t mode)
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return "normal";
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case INPUT_MODE_HEX:
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return "hex";
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case INPUT_MODE_LINE:
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return "line";
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case INPUT_MODE_END:
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break;
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}
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@ -34,6 +34,7 @@ typedef enum
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{
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INPUT_MODE_NORMAL,
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INPUT_MODE_HEX,
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INPUT_MODE_LINE,
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INPUT_MODE_END,
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} input_mode_t;
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@ -31,11 +31,13 @@ char ansi_format[30];
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void print_hex(char c)
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{
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print_tainted = true;
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printf("%02x ", (unsigned char) c);
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}
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void print_normal(char c)
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{
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print_tainted = true;
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putchar(c);
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}
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109
src/tty.c
109
src/tty.c
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@ -195,8 +195,6 @@ static void optional_local_echo(char c)
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{
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log_putc(c);
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}
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print_tainted_set();
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}
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inline static bool is_valid_hex(char c)
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@ -887,6 +885,11 @@ void handle_command_sequence(char input_char, char *output_char, bool *forward)
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tio_printf("Switched to hex input mode");
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break;
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case INPUT_MODE_LINE:
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option.input_mode = INPUT_MODE_LINE;
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tio_printf("Switched to line input mode");
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break;
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case INPUT_MODE_END:
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option.input_mode = INPUT_MODE_NORMAL;
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tio_printf("Switched to normal input mode");
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@ -1531,11 +1534,14 @@ int tty_connect(void)
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fd_set rdfs; /* Read file descriptor set */
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int maxfd; /* Maximum file descriptor used */
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char input_char, output_char;
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char input_buffer[BUFSIZ];
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char input_buffer[BUFSIZ] = {};
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char line_buffer[BUFSIZ] = {};
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static bool first = true;
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int status;
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bool next_timestamp = false;
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char* now = NULL;
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unsigned int line_index = 0;
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static char previous_char[2] = {};
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/* Open tty device */
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device_fd = open(option.tty_device, O_RDWR | O_NOCTTY | O_NONBLOCK);
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@ -1805,13 +1811,108 @@ int tty_connect(void)
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/* Handle commands */
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handle_command_sequence(input_char, &output_char, &forward);
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if ((option.input_mode == INPUT_MODE_HEX) && (forward))
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if (forward)
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{
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switch (option.input_mode)
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{
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case INPUT_MODE_HEX:
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if (!is_valid_hex(input_char))
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{
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tio_warning_printf("Invalid hex character: '%d' (0x%02x)", input_char, input_char);
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forward = false;
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}
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break;
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case INPUT_MODE_LINE:
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switch (input_char)
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{
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case 27: // Escape
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forward = false;
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break;
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case '[':
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if (previous_char[0] == 27)
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{
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forward = false;
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}
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break;
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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if ((previous_char[1] == 27) && (previous_char[0] == '['))
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{
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// Handle arrow keys
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switch (input_char)
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{
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case 'A': // Up arrow
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// Ignore
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break;
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case 'B': // Down arrow
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// Ignore
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break;
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case 'C': // Right arrow
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// Ignore
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break;
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case 'D': // Left arrow
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// Ignore
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break;
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}
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forward = false;
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}
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break;
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case '\b':
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case 127: // Backspace
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if (line_index)
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{
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if ((option.output_mode == OUTPUT_MODE_HEX) && (option.local_echo))
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{
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printf("\b\b\b \b\b\b"); // Destructive backspace
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}
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else
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{
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printf("\b \b"); // Destructive backspace
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}
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line_index--;
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}
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forward = false;
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break;
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case 13: // Carriage return
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// Write buffered line to tty device
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tty_write(device_fd, line_buffer, line_index);
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tty_write(device_fd, "\r", 1);
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optional_local_echo('\r');
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tty_sync(device_fd);
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putchar('\r');
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putchar('\n');
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line_index = 0;
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forward = false;
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break;
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default:
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if (line_index < BUFSIZ)
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{
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line_buffer[line_index++] = input_char;
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}
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else
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{
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tio_error_print("Input exceeds maximum line length. Truncating.");
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forward = false;
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}
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}
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// Save 2 latest stdin input characters
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previous_char[1] = previous_char[0];
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previous_char[0] = input_char;
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break;
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default:
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break;
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}
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}
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}
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