Fix jaw-dropping bug introduced on 2009-11-15, first affecting

the 022 release.

Efficient string literal objects (tag bits 11) were introduced on that
day.

The null_string object was changed to a literal, and that object is
efficiently returned by some string manipulation functions in cases
when it is obvious that the result is an empty string.

However, the LIT type code was not added to a switch statement in
the variable matching code, which continued to recognize only the
type STR as a string, to this day.

A test case for this is

    echo ":x" | ./txr -c "@x:@x" -

which results in an "unsupported object in spec" error.

* match.c (h_var): Use stringp to test for string rather than
type(..) == STR. Add LIT and LSTR to the switch statement
so that literals an lazy strings are handled if they occur.
(do_output_line): Add LIT and LSTR to switch.

0 files changed, 0 insertions, 0 deletions