diff options
| author | Kaz Kylheku <kaz@kylheku.com> | 2017-02-26 20:29:37 -0800 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2017-02-26 20:29:37 -0800 |
| commit | f4f0ac8e53dda991a47b018ad1bbfbff47e541fa (patch) | |
| tree | f1b9a4926654caf02499a88afd4c6940a8ff1c7f /txr.1 | |
| parent | 93b63a18346d62fd68aae5802b9439f7964043a2 (diff) | |
| download | txr-f4f0ac8e53dda991a47b018ad1bbfbff47e541fa.tar.gz txr-f4f0ac8e53dda991a47b018ad1bbfbff47e541fa.tar.bz2 txr-f4f0ac8e53dda991a47b018ad1bbfbff47e541fa.zip | |
doc: horizontal trailer.
* txr.1: Add missing documentation of the existence of
horizontal @(trailer) syntax.
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 26 |
1 files changed, 26 insertions, 0 deletions
@@ -3908,6 +3908,32 @@ cause .code @(collect) to match partially overlapping regions. +Trailer can be used in vertical context: + +.cblk +.mets @(trailer) +.mets < directives +.mets ... +.cble + +or horizontal: + +.cblk +.mets @(trailer) < directives ... +.cble + +A vertical +.code trailer +prevents the vertical input position from +advancing as it is matched by +.metn directives , +whereas a horizontal +.code trailer +prevents the horizontal position from advancing. In other words, +.code trailer +performs matching without consuming the input, providing a +look-ahead mechanism. + Example: .cblk |