diff options
Diffstat (limited to 'doc/gets.n')
| -rw-r--r-- | doc/gets.n | 16 |
1 files changed, 8 insertions, 8 deletions
@@ -5,10 +5,8 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: gets.n,v 1.6 2004/10/27 12:53:22 dkf Exp $ -'\" -.so man.macros .TH gets n 7.5 Tcl "Tcl Built-In Commands" +.so man.macros .BS '\" Note: do not modify the .SH NAME line immediately below! .SH NAME @@ -23,13 +21,11 @@ This command reads the next line from \fIchannelId\fR, returns everything in the line up to (but not including) the end-of-line character(s), and discards the end-of-line character(s). .PP -.VS \fIChannelId\fR must be an identifier for an open channel such as the Tcl standard input channel (\fBstdin\fR), the return value from an invocation of \fBopen\fR or \fBsocket\fR, or the result of a channel creation command provided by a Tcl extension. The channel must have been opened for input. -.VE .PP If \fIvarName\fR is omitted the line is returned as the result of the command. @@ -39,12 +35,12 @@ returned. .PP If end of file occurs while scanning for an end of line, the command returns whatever input is available up to the end of file. -If \fIchannelId\fR is in nonblocking mode and there is not a full +If \fIchannelId\fR is in non-blocking mode and there is not a full line of input available, the command returns an empty string and does not consume any input. If \fIvarName\fR is specified and an empty string is returned in \fIvarName\fR because of end-of-file or because of insufficient -data in nonblocking mode, then the return count is -1. +data in non-blocking mode, then the return count is -1. Note that if \fIvarName\fR is not specified then the end-of-file and no-full-line-available cases can produce the same results as if there were an input line consisting @@ -68,4 +64,8 @@ close $chan file(n), eof(n), fblocked(n), Tcl_StandardChannels(3) .SH KEYWORDS -blocking, channel, end of file, end of line, line, nonblocking, read +blocking, channel, end of file, end of line, line, non-blocking, read +'\" Local Variables: +'\" mode: nroff +'\" fill-column: 78 +'\" End: |