![]() ![]() That means that the previous comments on how the, , and keys behave on a standard terminal may not apply in all cases. It is up to software to translate and remap the keypresses. On a PC the keyboard hardware generates scancodes so that every keypress (and release) can be detected. The reasons is received as meta- is because I've checked "Send Alt as Meta" in Terminal.app settings. Whereas + generates an ASCII SOH (start of header) character. Without the modifier key, a low-case a character would be generated. The modifier key can generate a unique character code based on the type key.įor instance + generates an upper-case A character. Note that (contrary to your assumptions), a modifier key does not necessarily prepend characters to form an escape sequence. When I press these keys, the program thinks I'm pressing +, instead The plus sign, +, as used in this notation indicates the key combination, and does not indicate a key that should be typed or pressed as a keystroke for this combination. press and release) the, and then release the. The notation means that you should hold down the, type (i.e. The notation used for describing such a combination of keys is: + These keys generate an alternate character code when combined with another key. The, , and keys do not generate any characters (by themselves). Key concepts about standard terminal keyboards: These are "bindings" between keystrokes and. I'm wondering now what sequence should be sent when + is pressed instead. This answer points out that sometimes it's necessary to enforce Mac's Terminal.app to send correct escape sequences, and precisely as \033[5~, which it's what is already happening on my machine. ![]() The two-byte code for the key is 0x0 0x49 or decimal 0 73.ĭo you understand what [5~ may refer to, then? The key is not a modifier key, and should not be kept "pressed". I'm wondering whether MacOS caught that key combination and did send something else to my terminal, like that +. I indeed did "hold down the key, type the key, and then release the key". If the program responds as if you are "pressing + ,", then you apparently did something else. So did you hold down the key, type the key, and then release the key? You seem to be misunderstanding the required keystrokes and which keys generate characters. So, I'm not sure what's going on in this website as well. Strangely, seems to be encoded as 0 73, and not the expected [5~. Here the whole list of ANSI escape sequences can be found. I'm sitting on a Mac, using Terminal.app, ssh-ing into a CentOS, connected to a tmux session, running WeeChat in one window. + is escaped incorrectly (?) as meta-meta2-5~.+ is escaped incorrectly as meta-, (should be meta-meta2-5~).(I cannot simply keep pressed and hit a few s. Now (hold on for such strange behaviour), if I press, this guy is received as meta! So, to scroll up a few lines I can press + a few times. ![]() (Typing +, is also received as meta-, so it is my understanding that corresponds to meta here.) The reasons is received as meta- is because I've checked "Send Alt as Meta" in Terminal.app settings. Typing + is received as meta-, instead of meta-meta2-5~. (So, it is my understanding that meta2 is [.) This works fine and represents the escape sequence: [5~. In my terminal, typing is received as meta2-5~. When I press these keys, the program thinks I'm pressing +, instead. O "2" prints ANSI color attributes as well.To scroll a few lines up in WeeChat one is supposed to press +. Inverse and blink) as VT100-style control sequences. O "1" prints the normal set of attributes (bold, underline, Highlighting codes but your printer may not handle these. A real DEC VTxxx terminal will print the underline, Specifies whether to print graphic attributes along with the Given as an empty string, the printer is disabled.Īnd printAttributes (class PrintAttributes) When the first MC (Media Copy) command is initiated. Specifies a shell command to which xterm-dev will open a pipe Unlike your test-program, those escape sequences are printed line-by-line, rather than jumping around the screen.įrom the manual, the relevant resources are printerCommand (class PrinterCommand) You can configure it to print to a file, and use escape sequences for the colors and video attributes which are on the screen. However, some terminal programs allow you to print the screen contents. Yes and no: as a rule, terminal programs do not provide a way to retrieve the contents of the screen, e.g., in response to an escape sequence, because allowing that is considered insecure (if you happen to run a program that does this without your knowledge).
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