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Version 042
Features
- Access to environment via @(next :env)
- New @(gather) directive for matching out-of-order material.
- Horizontal functions:
- TXR can now parse grammars.
- Variable syntax allows capture of text spanned by function calls:
e.g. @{var (func x y)}: text spanned by (func x y) goes into var.
- Horizontal modes for numerous directives such as @(bind), @(local), ...
- Lisp-style bindings output.
- Interactive breakpoint/step debugger added.
This is an experimental prototype, but already quite useful.
- Directives following a variable match have searching semantics now,
as do function calls. @a@(foo) will scan for a match for @(foo),
and the text skipped over is captured by a.
- New :resolve keyword in @(some) directive allowing conflicting
variable bindings to be set in separate clauses and resolved.
- deffilter is more powerful: arguments are evaluated so filters can
be computed by the query.
Bugs
- Horizontal @(some) directive hooked in.
- @(freeform) with no data fails to match instead of throwing strange error.
- Setting non-local variables from a function works now.
- Stability fix: several long-time uninitialized variable bugs found,
and some faulty object initialization orders.
Internal
- New infrastructure for matching location info to source forms.
Location info (currently just the line number) is associated with
source forms via a weak hash table.
- Character literals are now Lispy (hash-backslash syntax), based on Scheme.
- Added quote, unquote and splicing syntax similar to Lisp. Not used
for anything yet.
- Improved Valgrind integration: more accurate, timely detection of
uninitialized fields in heap objects.
Misc.
- A TXR syntax highlighting file for the Vim editor exists
now. See the txr.vim file.
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