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Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -49312,6 +49312,24 @@ 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 156 +After version 156, a bug was fixed in the macro expander for +.codn caseq , +.code caseql +and +.codn casequal . +Selecting a compatibility value of 156 or less restores the buggy +behavior. The bug was that single-atom case keys were undergoing +evaluation. For instance +.code "(caseql x (a 0))" +would arrange for the evaluation of +.code a +as a variable, rather than treating it as the symbol +.code a +itself. Beside using the compatibility mechanism, a workaround is to +use a list of keys, exemplified by a rewrite of the foregoing +expression to +.codn "(caseql x ((a) 0))" . .IP 155 After version 155, the .code tok-str |