diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -864,6 +864,12 @@ or one of the related options. A file argument consisting of a single .code - means to read the standard input instead of opening a file. +Specifying standard input as a source with an explicit +.code - +argument is unnecessary. If no data source arguments are present, then +\*(TX scans standard input by default. This was not true in versions of \*(TX +prior to 171; see the COMPATIBILITY section. + .PP \*(TX begins by reading the script. In the case of the \*(TX pattern language, the entire query is scanned, internalized and then begins executing, if it is @@ -52657,6 +52663,18 @@ of these version values, the described behaviors are provided if is given an argument which is equal or lower. For instance .code "-C 103" selects the behaviors described below for version 105, but not those for 102. +.IP 170 +A value of 170 or lower disables the behavior that \*(TX scans standard input +when no input sources are specified on the command line. Standard input must +be requested explicitly using the +.code - +argument. This is how it was in all versions of \*(TX up to 170. +Some programs may behave differently because of this. Specifically, programs +which do not take any arguments, and do not select an input source using the +.code @(next) +directive, or suppress the use of an input source using +.codn "@(next nil)" , +may now accidentally read from standard input. .IP 165 A value of 165 restores the following behaviors, which changed starting in 166. There was a in Lisp evaluation support of the \*(TX pattern language. |