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Diffstat (limited to 'RELNOTES')
| -rw-r--r-- | RELNOTES | 69 |
1 files changed, 69 insertions, 0 deletions
@@ -1,3 +1,72 @@ + TXR 86 + 2014-03-16 + + + Features + + - Exposed the implementation of tries to user code. + + - New functions: html-encode, html-decode. + + - New prof operator and pprof macro for simple profiling: time spent and memory + allocated over the evaluation of an expression. + + - New functions sh and run for running system commands. + + - If available, sigaltstack is used when the program registers a handler for + the SIGSEGV signal, allowing TXR programs to catch stack exhaustion and + recover by throwing an exception. + + - New syntactic sugar in the pattern language: @(if)/@(elif)/@(else)/@(end), + which works by transformation to a pattern involving @(cases) and @(require). + + - The @(empty) directive which plays a role in @(output) blocks has a new meaning + in the pattern language for denoting an explicit empty match. + + Bugs + + - Fixed severe performance problem with regex on long strings, caused by feeding + characters to the regex machine past the point that it is clear it will not + accept any more. + + - Fixed broken horizontal matching under @(freeform) on long lines, due to bugs + in the handling of the memory-saving optimization which consumes the prefix of + the lazy string as scanning progresses. + + - Fixed breakage in sub-str over lazy strings. + + - Fixed possible crash in @(trailer) directive. + + - Fixed memory leaks on open-process: one that happened on every call, and one on + failure of the fork function. + + - Fixed pipe-close deadlocks occurring in code that opens numerous pipes; solved + by setting the close-on-exec flag on the pipe descriptors. + + - Fixed faulty argument defaulting logic in the functions: iffi, regex-parse, + lisp-parse, regex-compile and Windows version of open-process. + + - Fixed regression in the random number module, causing the random function to + ignore the seeded random state passed in as an argument, and rely on the global one. + + - Fixed a bug in a rarely used form of the backslash line continuation. + + - Fixed buggy argument quoting in Windows version of open-process. + + - The gc on/off state is now saved and restored as part of unwinding, so if + code that turned off gc throws an exception, gc will be turned back on + at the catch site. + + - Fixed incorrect calculation of malloc upper and lower boundaries, affecting + the correctness of generational garbage collection. + + - In open process, if fdopen fails, kill the process more gently with SIGINT + and SIGTERM rather than SIGKILL, and wait on it. + + - Syntax fix. @^a is not meta applied to the symbol ^a, but rather meta quasiquote a. + + + TXR 85 2014-03-07 |