The terminals that can overstrike include printing terminals, storage tubes (all obsolete nowadays), and many bit-map displays. `eo' Flag whose presence means that outputting a space erases a character position even If a reviewer makes significant contributions to improving a paper, may he/she suggest becoming a coauthor? This is used for terminals that expect cursor positions in origin 1. Most of the strings start with ESC represented as `\E'. this content
If you can not find a local reseller, please purchase from our online store. The function tputs strips off and decodes the padding spec, outputs the rest of the string, and then outputs the appropriate padding. parm -= 2 * (parm % 16); Sending Display Commands with Parameters The termcap library functions tparam and tgoto serve as the analog of printf for terminal string parameters. [email protected]:/etc/asterisk# asterisk -r Cannot read termcap database; using dumb terminal settings.
All display terminals except a few very obsolete ones support `cm', so it is acceptable for an application program to refuse to operate on terminals lacking `cm'. `ho' String of commands However, the definition of termcap clearly says that nlines is always the number of lines affected, even in this case, where it is always 1. The referring description can cancel out a capability without specifying any new value for it by means of a special trick. Mysterious creeper-like explosions Determine maximum frequency of input signal to make system LTI Prepared for Yet Another Simple Rebus?
Each defined capability has by convention a particular kind of value; for example, `li' always has a numeric value and `cm' always a string value. Some terminals have a special line that is used only as a status line. You can determine that size with strlen on the buffer you provided to tgetent. Every terminal has a certain amount of buffering capacity to remember output characters that cannot be processed yet, but too many slow commands in a row can cause the buffer to
See section Terminal Type Name Conventions, for information on how to choose terminal type names. Each capability has a two-letter name, such as `cm' for "cursor motion string" or `li' for "number of display lines". To include a colon in the string, you must write `\072'. https://www.howtoforge.com/community/threads/if-termcap-is-obsolete-why-does-asterisk-configure-require-it.17780/ ecsd, Nov 28, 2007 #1 falko Super Moderator ISPConfig Developer What happens when you leave out --without-termcap?
But I also strongly recommend that Asterisk reviews its makefiles and GETS RID OF the requirement for things that CANNOT BE FOUND. Using `%b' more than once, you can back up any number of parameters, and you can refer to each parameter any number of times. `%>c1c2' Conditionally increment the next parameter. Obsolete; look at `le' instead. `nl' Obsolete capability which is a string that can either be used to move the cursor down or to scroll. Do not send this command if the kernel's terminal modes say that the kernel is expanding tabs into spaces. `bt' String of commands to move the cursor left to the previous
Finally, outfun is a function (such as fputchar) that is called to output each character. For one thing, all letters should be in lower case. Cannot Read Termcap Database Python But you can simply find and correct it.After some searching on Google, I change the line in asterisk.conf to "astrundir => /var/run/asterisk", which solved the startup problem. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed
What now? http://knowaretech.com/cannot-read/asp-net-cannot-read-configuration-file.html But one question remains. Do not attempt to move past any edge of the screen with these commands; the effect of trying that is undefined. The effect of erase or scrolling commands also depends on the terminal.
See section Performing Padding with tputs. Are 14 and 21 the only "interesting" numbers? The standard suffix `-am' stands for "automatic margins". have a peek at these guys A pointer into this vector determines the next parameter to be processed.
Please visit the Quick Support to have your first level support from OpenVox. Note that `xt' also has implications for standout mode (see section Standout and Appearance Modes). If you plan to use the relative cursor motion commands in an application program, you must know what the starting cursor position is.
In fact, the wrap occurs when the following graphic character is received by the terminal, before the character is placed on the screen. A terminal description starts with one or more names for the terminal type. After the terminal type names come the terminal capabilities, separated by colons and with a colon after the last one. String capabilities that are display commands may require numeric parameters (see section Filling In Parameters).
They automatically use the description found by the most recent call to tgetent. The number of padding characters needed for an operation depends on the line speed. For example, on BSD 4.3 systems, the system call ioctl with code TIOCGWINSZ will tell you the current screen size. check my blog Once you have found the proper terminal description with tgetent (see section Finding a Terminal Description: tgetent), your application program must interrogate it for various terminal capabilities.
The original parameter-encoding function is tgoto, which is preferable for cursor motion. See section Sending Display Commands with Parameters, for information on UP and BC. Check you paths. My manager said I spend too much time on Stack Exchange.
These sequences control the actions of tparam and tgoto. The string value will often contain digits at the front to specify padding (see section Padding) and/or `%'-sequences within to specify how to encode parameters (see section Filling In Parameters). Alternatively, if these two variables are both zero, the feature of avoiding nulls, tabs and newlines is turned off. This does the job if the terminal throws away null characters without using up space in the buffer (which most terminals do).
There is no way to determine how much space is needed for a single string, and no way for you to prevent or handle overflow of the area you have provided. For the `cm' capability, since tgoto has a special feature to avoid problems with null characters, tabs and newlines on certain old terminal types that use `%.' encoding for that capability. Best Regards.