diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -10593,6 +10593,25 @@ if .code abc matches. +If +.code throw +is used to generate an exception derived from type +.code error +and that exception is not handled, \*(TX will issue diagnostics on the +.code *stderr* +stream and terminate. If an exception derived from +.code warning +is not handled, \*(TX will generate diagnostics on the +.code *stderr* +stream, after which control returns to the +.code throw +directive, and proceeds with the next directive. +If an exception not derived from +.code error +is thrown, control returns to the +.code throw +directive and proceeds with the next directive. + .dir defex The @@ -10856,6 +10875,25 @@ followed by a successful match for .strn "d@x" , or else an exception is thrown. +If the exception is not handled, and is derived from +.code error +then \*(TX issues diagnostics on the +.code *stderr* +stream and terminates. If the exception is derived from +.code warning +and not handled, \*(TX issues a diagnostic on +.code *stderr* +after which control returns to the +.code assert +directive. Control silently returns to the +.code assert +directive if an exception of any other kind is not handled. + +When control returns to +.code assert +due to an unhandled exception, it behaves like a failed match, +similarly to the require directive. + .SH* TXR LISP The \*(TX language contains an embedded Lisp dialect called \*(TL. |