diff options
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 |