diff options
Diffstat (limited to 'Doc/Zsh')
| -rw-r--r-- | Doc/Zsh/tcpsys.yo | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Doc/Zsh/tcpsys.yo b/Doc/Zsh/tcpsys.yo index c94a15c0b..a8a77e2f9 100644 --- a/Doc/Zsh/tcpsys.yo +++ b/Doc/Zsh/tcpsys.yo @@ -506,6 +506,11 @@ zmanref(zshzle) ifnzman(\ noderef(Zle Builtins) ). + +While active, the function sets the parameter tt(TCP_HANDLER_ACTIVE) to 1. +This allows shell code called internally (for example, by setting +tt(tcp_on_read)) to tell if is being called when the shell is otherwise +idle at the editor prompt. ) findex(tcp_output) item(tt(tcp_output [ -q ] -P) var(prompt) tt(-F) var(fd) tt(-S) var(sess))( @@ -571,6 +576,12 @@ if matched in tt(tcp_output), will cause the line not to be printed to standard output. The patterns should be defined as described for the arguments to tt(tcp_expect). Output of line to log files is not affected. ) +vindex(TCP_HANDLER_ACTIVE) +item(tt(TCP_HANDLER_ACTIVE))( +Scalar. Set to 1 within tt(tcp_fd_handler) to indicate to functions +called recursively that they have been called during an editor session. +Otherwise unset. +) vindex(TCP_LINE) item(tt(TCP_LINE))( The last line read by tt(tcp_read), and hence also tt(tcp_expect). @@ -691,6 +702,13 @@ tt(tcp_read) (which includes lines read by tt(tcp_expect)) is compared against the pattern. If the line matches, the command given in the key is called with two arguments: the name of the session from which the line was read, and the line itself. + +If any function called to handle a line returns a non-zero status, the +line is not output. Thus a tt(tcp_on_read) handler containing only +the instruction `tt(return 1)' can be used to suppress output of +particular lines (see, however, tt(tcp_filter) above). However, the line +is still stored in tt(TCP_LINE) and tt(tcp_lines); this occurs after all +tt(tcp_on_read) processing. ) enditem() |