| Commit message (Collapse) | Author | Age | Files | Lines |
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* stdlib/optimize.tl (basic-blocks peephole-block): When we match a
branching instruction, including jend, we know that's the end of the
basic block. So there is no need to splice the (rest insns) into
the output; let's get rid of that. On the other hand, there is also no
need to have a specific pattern match for the end of the list such
as ((jmp @label)). This costs extra cycles to validate. Let's
consistently match these basic-block terminating instructions using
prefix patterns like ((jmp @label) . @nil)).
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* quips.tl: New quip.
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This specifies the environment to be used for executing
programs.
* stream.c (open_subprocess, run): Check *child-env* variable and if
other than t, then install the environment before execvp.
In the spawn-based version of run, we save and restore the
environment around the spawn call, if *child-env* is in
effect.
* sysif.c (child_env_s): New symbol variable.
(exec_wrap): If *child-env* is other than t, then save the
environment in a list, and install the specified environment
before calling execvp. If that function returns, restore the
environbment.
* sysif.h (child_env_s): Declared.
(child_env): New macro.
* tests/018/process.tl: New tests.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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Using this new function together with env, it's now possible
to save the set of environment variables, clobber it to a
specified set (possibly empty) and then restore it.
Useful for improved security in running child processes.
* lib.[ch] (chk_substrdup_utf8): New function.
* sysif.c (replace_env): New function.
(sysif_init): Register replace-env intrinsic.
* sysif.h (replace_env): Declared.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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The various accessibility functions like path-writable-to-me
should use the real credentials, the same way that the
POSIX access function does. This makes them much more useful
and secure in setuid programs, since they answer the question
"does the underlying user, without these elevated privileges,
have this access".
* stdlib/path-test.tl (path-mine-p): Use getuid, not geteuid.
(path-my-group-p): Use getgid, not getegid.
(sys:path-access, path-private-to-me,
path-strictly-private-to-me): Use getuid, getgid and
rename euid variable to uid.
* txr.1: Updated.
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The new function:
- just returns the name if it contains path name components.
- returns nil if the name is "." or "..".
- tests for existence only, not permission to execute.
* lisplib.c (path_test_set_entries): Do not auto-load path-test
module on the path-search symbol, since it is no longer implemented
there.
* stdlib/path-test.tl (path-search): Function removed.
* stream.c (path_var_sep_char): New global variable.
(path_search): New function.
(detect_path_separators): Also set path_var_sep_char to semicolon
on Cygnal.
(stream-init): Register path-search intrinsic here now.
* stream.h (path_var_sep_char, path_search): Declared.
* tests/018/path-test.tl: New tests.
* txr.1: Documentation revised for path-search.
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* lisplib.c (arith_each_instantiate, arith_each_set_entries): New
functions.
(each_prod_set_entries): Add sum-each-prod, sum-each-prod*,
mul-each-prod and mul-each-prod* as autoload triggers for
each-prod.tl, where those macros are now defined.
(lisplib_init): Register autoloading of arith-each.tl via the
two new functions.
* stdlib/arith-each.tl: New file.
* stdlib/each-prod.tl (sys:expand-each-prod*): Handle sum-each-prod* and
mul-each-prod* in the same way, by mapping to their parallel binding
counterparts.
(sys:expand-arith-each-prod): New function.
(sym-each-prod, mul-each-prod, sum-each-prod*, mul-each-prod*): New
macros.
* tests/016/arith.tl: New tests.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* Makefile (psquare.o): New object file.
* arith.c (psq_ops): New static structure.
(quant_fun): New static function.
(quantile): New function.
(arith_init): Register quantile intrinsic.
* arith.h (quantile): Declared.
* psquare.c, psquare.h: New files.
* tests/016/arith.tl: New tests.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* stdlib/compiler.tl (compiler comp-fun-form): Reduce
single-argument logior and logand calls to just the argument.
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* stdlib/defset.tl (set-mask, clear-mask): New update macros.
* stdlib/optimize.tl (calc-liveness): Use the new macros.
* stdlib/socket.tl (sys:str-inaddr-net-impl, str-in6addr-net):
Same.
* stdlib/termios.tl (set-iflags, set-oflags, set-cflags,
set-lflags, clear-iflags, clear-oflags, clear-cflags,
clear-lflags): Same.
* lisplib.c (defset_set_entries): Add set-mask and clear-mask
to autoload symbols for defset.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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At optimization level 2 or higher, an issue occurs whereby
code generation exhibits instabilities. The same code is
compiled slightly differently (but not incorrectly) depending
on irrelevant circumstances, due to some different registers
being used.
* stdlib/compiler.tl (compiler eliminate-frame): Do not free
the newly allocated t-registers inside a dohash loop.
We have a separate list of them in order; just hand that off
to free-tregs. The dohash loop is not ordered, because it
traverses a hash, which is keyed by object identities; i.e.
machine addresses assigned by memory allocation.
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The new sock-opt and sock-set-opt functions are wrappers around
getsockopt and setsockopt, respectively.
All POSIX socket options are registered. Platform-specific
options may be added in the future.
* ffi.c (sock_opt, sock_set_opt): New functions.
(ffi_init): Register sock-opt, sock-set-opt, sol-socket,
ipproto-ip, ipproto-ipv6, ipproto-tcp, ipproto-udp,
so-acceptconn, so-broadcast, so-debug, so-dontroute, so-error,
so-keepalive, so-linger, so-oobinline, so-rcvbuf, so-rcvlowat,
so-rcvtimeo, so-reuseaddr, so-sndbuf, so-sndlowat, so-sndtimeo,
so-type, ipv6-join-group, ipv6-leave-group, ipv6-multicast-hops,
ipv6-multicast-if, ipv6-multicast-loop, ipv6-unicast-hops,
ipv6-v6only, tcp-nodelay.
* lisplib.c (sock_set_entries): Add sock-opt and sock-set-opt.
* stdlib/socket.tl (sock-opt): Define as syntactic place.
* tests/014/socket-misc.tl: New cases, for sock-opt.
(set-and-get): New macro.
* txr.1: Documented. Also, mention that sock-bind enables
so-reuseaddr.
* stdlib/doc-syms.tl: Updated.
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* stdlib/socket.tl (sock-peer): Remove excess apostrophe in
getter.
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* stdlib/match.tl (match-pat-error, match-error): New functions.
(match, match-ecase): Generate more compact code which just
calls match-pat-error rather than throwf, and doesn't contain any string
literals.
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Basic idea: when we throw an exception that pertains to a
system error which has an errno code, we can stick the errno
into the memory area of the character string, into the wchar_t
that immediately follows the null terminator. We can do this
because strings track their actual allocation size.
A pair of setter/getter functions to set and retrieve this
value are provided, and all functions in the code which can
set such a code are updated to do so, simply by calling the
newly added uw_ethrowf that drop-in replaces for uw_throwf.
* lib.[ch] (string_set_code, string_get_code): New functions.
* unwind.[ch] (uw_ethrowf): New function.
* eval.c (eval_init): Register string-set-code and
string-get-code intrinsics.
* ftw.c (ftw_wrap): Switch to uw_ethrowf.
* parser.c (open_txr_file): Likewise.
* socket.c (dgram_overflow): Store the ENOBUFS error in errno,
and use uw_ethrowf instead uw_throwf.
(dgram_get_byte_callback, dgram_flush, sock_bind, to_connect,
open_sockfd, sock_connect, sock_listen, sock_accept,
sock_shutdown, sock_timeout, socketpair_wrap): Switch to
uw_ethrowf.
* stream.c (dev_null_get_fd, stdio_maybe_read_error,
stdio_maybe_error, stdio_close, pipe_close, open_directory,
open_file, open_fileno, open_tail, fds_subst,
open_subprocess, open_command, remove_path, rename_path,
tmpfile_wrap, mkdtemp_wrap, mkstemp_wrap): Switch to uw_ethrowf.
* sysif.c (mkdir_wrap, ensure_dir, chdir_wrap, getcwd_wrap,
rmdir_wrap, mknod_wrap, mkfifo_wrap, chmod_wrap, do_chown,
symlink_wrap, link_wrap, readlink_wrap, close_wrap, val
exec_wrap, stat_impl, do_utimes, pipe_wrap, poll_wrap,
getgroups_wrap, setuid_wrap, seteuid_wrap, setgid_wrap,
setegid_wrap, setgroups_wrap, getresuid_wrap, setresuid_wrap,
setresgid_wrap, crypt_wrap, uname_wrap, opendir_wrap,
getrlimit_wrap, setrlimit_wrap): Likewise.
* termios.c (tcgetattr_wrap, tcsetattr_wrap, tcsendbreak_wrap,
tcdrain_wrap, tcflush_wrap, tcflow_wrap): Likewise.
* tests/018/errno.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* eval.c (eval_init): Register string-finish intrinsic.
* lib.c (string_finish): New function.
* lib.h (string_finish): Declared.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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A number of functions take an argument which is a ffi type.
Typically, this argument is produced using by a
ffi-type-compile call which is produced by the ffi macro. But
this ffi-type-compile call is invoked at run time, each time
such a function is called. A solution for this is to have the
ffi macro hoist the compilation to load time.
* stdlib/ffi.tl (ffi): Add load-time wrapping to generated
expression.
* txr.1: Updated correspondence between (ffi ...) form and
equivalent (ffi-type-compile form).
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* ffi.c: Include <sys/socket.h> if we HAVE_SOCKETS.
(ffi_init_extra_types): Initialize socklen-t type if we
HAVE_SOCKETS.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* eval.c (me_push_after_load, me_pop_after_load): New static
functions.
(eval_init): Register push-after-load and pop-after-load
intrinsic macros.
* tests/019/load-hook.tl: Tests for correct expansion.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* eval.c (eval_init): Register delcons intrinsic.
* lib.[ch] (delcons): New function.
* tests/010/cons.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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*load-hooks* lets a .txr, .tl or .tlo file specify actions to be taken
when the loading of that file completes, whether normally or via
an exception. They are also honored by process exit.
For instance, with this, we can have a Lisp file that behaves like
a script which cleans up after itself (e.g. removing temporary files)
even if it is not run as a stand-alone program, but invoked
via (load ...). Because it's not a stand-alone program, it cannot
simply use the at-exit-call mechanism. The unwind-protect operator could
be used, but it's inconvenient because it protects a single form.
The *load-hooks* feature in effect protects all the top level forms of a
load, similarly to unwind-protect. Also, unwind-protect does not
guard against a process exit. (However, *load-hooks* does not guard
against an abnormal exit, only normal termination).
* eval.c (load_hooks_s): New symbol variable.
(run_load_hooks): New function.
(run_load_hooks_atexit): New static function.
(load): bind *load-hooks* to nil around load. Implement
the hooks processing via run_load_hooks, taking care to pass the
load-time dynamic environment that has already been undone.
(eval_init): Initialize load_hooks_s and register the *load-hooks*
variable. Register run_load_hooks_atexit with atexit, so the
current value of *load-hooks* is processed on process exit.
* eval.h (load_hooks_s, run_load_hooks): Declared.
* match.c (v_load): Similar changes as in load.
* txr.c (txr_main): Run the load hooks with run_load_hooks immediately
after processing the .txr or .tl file, before entering the listener.
* tests/019/load-hook.tl: New directory and file
* tests/load-hook.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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The open-compile-streams function was calling trim-right with the
arguments in the wrong order, resulting in an output path equal
to the suffix of the input path.
Regression introduced in 8d8fee2e506806d9c117b17432ef3a5ec0d6f457.
* stdlib/compiler.tl (open-compile-streams): Swap in-path and
suff arguments in trim-right call.
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* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
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They were forgotten in commit 1fb6f6691d5b6fb6b037bb14073694f651f2b9fc.
* stdlib/ffi.tl (carray-sub, sub-buf): Remove binding which
ensures the new value is evaluated only once (defset does this
already).
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* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
* txr.vim, tl.vim: Regenerated.
* protsym.c: Likewise.
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* rand.c (random_buf): New function.
(rand-init): random-buf intrinsic registered.
* rand.h (random_buf): Declared.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* configure: configure test for mmap depositing HAVE_MMAP into
config.h.
* ffi.c (struct carray): Subject to HAVE_MMAP, new mm_len
member which keeps track of the size of an underlying mapping
so that we can unmap it, as well as peform operations like
msync on it.
(make_carray): Initialize mm_len to 0.
(MAP_GROWSDOWN, MAP_LOCKED, MAP_NORESERVE, MAP_POPULATE,
MAP_NONBLOCK, MAP_STACK, MAP_HUGETLB, MAP_SHARED, MAP_PRIVATE,
MAP_FIXED, MAP_ANON, MAP_HUGE_SHIFT, MAP_HUGE_MASK, PROT_READ,
PROT_WRITE, PROT_EXEC, PROT_NONE, PROT_GROWSDOWN,
PROT_GROWSUP, MADV_NORMAL, MADV_RANDOM, MADV_SEQUENTIAL,
MADV_WILLNEED, MADV_DONTNEED, MADV_FREE, MADV_REMOVE,
MADV_DONTFORK, MADV_DOFORK, MADV_MERGEABLE, MADV_UNMERGEABLE,
MADV_HUGEPAGE, MADV_NOHUGEPAGE, MADV_DONTDUMP, MADV_DODUMP,
MADV_WIPEONFORK, MADV_KEEPONFORK, MADV_HWPOISON, MS_ASYNC,
MS_SYNC, MS_INVALIDATE): #define as 0 if missing.
(carray_munmap_op): New static function.
(carray_mmap_ops): New static structure.
(mmap_wrap, munmap_wrap): New functions.
(mmap_op): New static function.
(mprotect_wrap, madvise_wrap, msync_wrap): New functions.
(ffi_init): Register mmap, munmap, mprotect, madvise and msync
as well as numerous integer variables: map-growsdown,
map-locked, map-noreserve, map-populate, map-nonblock,
map-stack, map-hugetlb, map-shared, map-private, map-fixed,
map-anon, map-huge-shift, map-huge-mask, prot-read,
prot-write, prot-exec, prot-none, prot-growsdown,
prot-growsup, madv-normal, madv-random, madv-sequential,
madv-willneed, madv-dontneed, madv-free, madv-remove,
madv-dontfork, madv-dofork, madv-mergeable, madv-unmergeable,
madv-hugepage, madv-nohugepage, madv-dontdump, madv-dodump,
madv-wipeonfork, madv-keeponfork, madv-hwpoison, ms-async,
ms-sync, ms-invalidate, page-size.
* ffi.h (mmap_wrap, munmap_wrap, mprotect_wrap madvise_wrap,
msync_wrap): Declared.
* tests/017/mmap.tl: New file.
* txr.1: Documented.
* stdlib/doc-syms.tl: Updated.
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* stdlib/match.tl (must-match): Renamed to just match.
It's just when-match without the "when".
(must-match-case): Renamed to match-ecase, consistent
with the case -> ecase naming scheme.
* lisplib.c (match_set_entries): Names updated here.
* tests/011/patmatch.tl: Test cases updated.
* txr.1: Names updated here.
* stdlib/doc-syms.tl: Updated.
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Even prior to discovering the recent defect in deffi, which
was caused by a missing case in caseql, combined with poor
testing, I was already thinking about adding ecase macros.
The introduction of must-match and must-match-case also shows
my motivation. That deffi bug convinced me to take action
and implement these.
* eval.c (case_error_s) New symbol variable.
(me_ecase): New static function.
(eval_init): Register new intrinsic macros ecaseq, ecaseql,
ecasequal, ecaseq*, ecaseql* and ecasequal*.
Intern case-error and initialize case_error_s.
* txr.1: Documented. Also updated Exception Hierarchy diagram
with match-error and case-error.
* stdlib/doc-syms.tl: Updated.
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* stdlib/ffi.c (sys:analyze-argtypes): Add missing fallback case in
filtering loop. This wouldn't have happened if we had a ecaseql macro,
and used it. Or if we had coverage of this in tests.
* tests/017/variadic.tl, tests/017/variadic.expected: New files.
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* Makefile, alloca.h, args.c, args.h, arith.c, arith.h, buf.c,
buf.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h,
combi.c, combi.h, debug.c, debug.h, eval.c, eval.h, ffi.c,
ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c,
glob.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c,
lib.h, lisplib.c, lisplib.h, match.c, match.h, parser.c,
parser.h, parser.l, parser.y, rand.c, rand.h, regex.c,
regex.h, signal.c, signal.h, socket.c, socket.h,
stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl,
stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl,
stdlib/copy-file.tl, stdlib/debugger.tl, stdlib/defset.tl,
stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl,
stdlib/except.tl, stdlib/ffi.tl, stdlib/getopts.tl,
stdlib/getput.tl, stdlib/hash.tl, stdlib/ifa.tl,
stdlib/keyparams.tl, stdlib/match.tl, stdlib/op.tl,
stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl,
stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl,
stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl,
stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl,
stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl,
stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl,
stdlib/with-resources.tl, stdlib/with-stream.tl,
stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h,
strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h,
termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.c,
txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h:
License reformatted.
* lex.yy.c.shipped, y.tab.c.shipped, y.tab.h.shipped: Updated.
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Paul A. Patience noted that the canonname_s variable is not
used in the C code. This indicates that the AI_CANONNAME
functionality of getaddrinfo isn't implemented. Let's do that.
* stdlib/socket.tl (sockaddr): New slot, canonname.
(addrinfo): Default canonname to nil, not 0, since it is
a string that may be absent.
* socket.c (getaddrinfo_wrap): If the first address object has
a non-null ai_canonname and it was requested via the flags,
then stick that name into every returned structure.
* txr.1: Documented.
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* RELNOTES: Fix various minor issues and stylistic issues.
* configure: Remove repeated word and add missing word.
* txr.1: Fix various minor, not-so-minor and stylistic issues.
In particular, struct-from-args was misspelled in the .mets line and
open-subprocess was missing from the .coNP line.
* stdlib/doc-syms.tl: Updated.
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* lisplib.c (match_set_entries): Intern the match-error symbol.
Register autoloads for must-match and must-match-case.
* stdlib/match.tl (match-error): Register exception symbol, as subtype
of match-error.
(must-match, must-match-case): New macros.
* tests/011/patmatch.tl: Test cases.
* txr.1: Documented.
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* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
* txr.vim, tl.vim: Regenerated.
* protsym.c: Likewise.
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We extend the matching context structures to keep track of the
underlying stream from which lines are being taken via the lazy list.
Then the implementation of the @(eof) directive, when it hits the eof
condition, can use this stream to gain access to the termination status.
* match.c (match_line_ctx, match_files_ctx): New member, stream.
(ml_all): Take stream argument and initialize new member.
(h_call, do_match_line): Pass stream argument to h_call.
(mf_all, mf_file_data): Take stream argument and initialize new member.
(mf_from_ml): Propagate stream from line context to file context.
(freeform_prepare, v_next_impl, match_filter, match_fun, extract): Pass
stream argument where now needed.
(v_eof): Implement termination status binding via the stream stored
in the context.
(open_data_source): Store stream in match files context.
* tests/010/eof-status.txr: New file.
* tests/010/eof-status.expected: New file.
* Makefile (tst/tests/010/eof-status.ok): -B option for new test.
* txr.1: Documented eof directive, argument and all.
* stdlib/doc-syms.tl: Updated.
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* stdlib/struct.tl (sys:new-expander): If the argument of
new* or lnew* is dwim, then treat that as an expression,
rather than as a boa-style construction.
* tests/012/oop.tl: Tests for new* focusing on this issue.
* txr.1: Documented.
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* txr.1: Fix code -> codn.
* stdlib/doc-syms.tl: Updated.
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* stdlib/quips.tl (sys:%quips%): New entry.
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* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
* txr.vim, tl.vim: Regenerated.
* protsym.c: Likewise.
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* stdlib/op.tl (sys:op-meta-p): Return an extended Boolean value: a true
result is an integer indicating the depth of the variable.
For instance @1 is depth 0, @@1 is depth 1 and so on.
(sys:find-parent): New function.
(sys:op-alpha-rename): When processing a nested meta, do not
set the nested flag in the immediate parent. Use find-parent to go up to
the correct level to which the meta belongs and set the flag there.
* tests/012/op.tl: New test cases which depend on this.
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* stdlib/op.tl (sys:op-meta-p): Rename expr argument to exp. The symbol
is not causing an issue here, but it's good to rename it for consistency
with sys:op-rec-p and to thwart future problems.
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* stdlib/op.tl (sys:op-rec-p): Test for both the variable @rec
and the expresson @(rec ...). Also, the expr argument of the function is
renamed to exp because it causes a problem, due to that symbol,
sys:expr, being the meta indicator.
(sys:op-ensure-rec): Remove one test for (sys:var usr:rec), since
sys:op-rec-p does it. Convert one equal-test to a call to sys:op-rec-p.
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The June 30 09e70c914ca83b5c7405aa633864db49f27efa05,
subject "op: refactor do handling", introduced a regression
breaking the tags.tl program. An implicit argument
gets inserted twice:
[[(do op list @1)] 'x] -> (x x) ;; incorrect/weird
This was spotted by Paul A. Patience while working on
extending tags.tl for Emacs.
It's not exactly a regression because the original
behavior is not documented or tested, and has issues;
we simply cannot roll back the commit; a proper
fix is required.
How the above call is now supposed to work is that:
- the @1 parameter belongs to the op, not to the do.
- the do therefore has no explicitly given parameters
of its own.
- therefore the do inserts its parameter.
In other words (do op list @1) is formally equivalent
to (do op list @1 @@1).
Both levels of function indirection require an
argument:
[[(do op list @1) 'x] 'y] -> (y x)
[[(do op list @1 @@1) 'x] 'y] -> (y x)
* stdlib/op.tl (sys:op-ctx): The structure gets a new slot,
nested, which is a flag indicating whether unprocessed nested
metas occur. This is critically needed because the
sys:op-alpha-rename passes which are called with
do-nested-metas being false do not insert nested metas into
the gens list; they transform them and leave them in the
syntax. Yet we must make decisions based on their presence.
Conretely, we must be able to tell that (do op list @@1)
has a meta against the outer (do ...), while we are just
processing the do.
(sys:op-alpha-rename): When replacing a nested meta syntax
with the macro invocation, we set the nested flag of the
parent context true.
(sys:op-expand): Bring back the do-gen; we need it. We cannot
simply insert @1 into the syntax, because that is not
lexically transparent. If we add @1 to (do op ...) then that
@1 is interpreted as belonging to the op, not to the do.
We must also check the new Boolean flag nested to properly
detect whether we have metas, including unexpanded nested
metas.
* tests/012/op.tl: New test cases combining (do op ...).
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* stdlib/doc-syms.tl: Updated.
* sysif.c (rlim_s, cur_s, max_s): New symbol variables.
(rlim_st): New variable.
(getrlimit_wrap, setrlimit_wrap): New functions.
(sysif_init): gc-protect rlim-st. Initialize symbol
vsariables. Create rlim struct type. Register getrlimit and
setrlimit intrinsics. Register variables rlim-saved-max,
rlim-saved-cur, rlim-infinity, rlimit-core, rlimit-cpu,
rlimit-data, rlimit-fsize, rlimit-nofile, rlimit-stack and
rlimit-as.
* txr.1: Documented under new Unix Resource Limits section.
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* RELNOTES: Updated.
* configure (txr_ver): Bumped version.
* stdlib/ver.tl (lib-version): Bumped.
* txr.1: Bumped version and date.
* txr.vim, tl.vim: Regenerated.
* protsym.c: Likewise.
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* stdlib/compiler.tl (open-compile-streams): If in-path end in
a path separator character, throw an error.
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* stdlib/doc-lookup.tl (open-url): Treat empty BROWSER variable
as if it were unset (i.e., ignore it). Otherwise the doc
function silently fails rather than falling back to alternative
URL-opening methods.
* txr.1: Documented.
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