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* New path-equal function.Kaz Kylheku2021-10-101-0/+18
| | | | | | | | | | * lisplib.c (copy_file_set_entries): Add path-equal to autoload symbols. * stdlib/copy-file.tl (path-equal): New function. * tests/018/path-equal.tl: New file. * txr.1: Documented.
* cygwin: environment-related fixes.Kaz Kylheku2021-10-051-13/+14
| | | | | | | * stream.c (run): replace_env takes only one argument. * tests/018/process.tl: *child-env* tests are reporting some extra environment variables on Windows; let's just disable them.
* New variable: *child-env*.Kaz Kylheku2021-09-261-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* path-search: rewrite in C with saner semantics.Kaz Kylheku2021-09-251-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* exceptions: hack to store errno in string object.Kaz Kylheku2021-09-071-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* format: bug: sign not reset before each conversion.Kaz Kylheku2021-08-161-0/+4
| | | | | | | | | | | | | | | | | | For instance, this bad output is produced: (pic "+0####.## <<<<<" 123 1) -> "+00123.00 +1 " The second argument should not have any leading + sign. * stream.c (formatv): For each new conversion specifier introduced by ~, reset the sign variable to zero also. That's the semantic change here, occluded by the fact that I'm rearranging the declaration of the variables, adding comments, and condensing the assignments while also getting them into the same order as the declarations, in order that this sort of bug does not creep in in the future, should another such variable be added. * tests/018/format.tl: Adding correct version of above test case.
* tests: support BSD flavors loosely, not just OpenBSD.Kaz Kylheku2021-08-131-1/+1
| | | | | | | | | | | | * tests/common.tl (os-symbol): Look for the substring BSD in the system name, and map to symbol :bsd. Do not produce the :openbsd symbol. * tests/014/socket-basic.tl: Refer to :bsd, not :openbsd. * tests/017/glob-carray.tl: Likewise. * tests/018/chmod.tl: Likewise.
* pure-rel-path-p: add tests.Kaz Kylheku2021-07-221-0/+23
| | | | * tests/018/path.tl: New tests.
* paths: new tests.Kaz Kylheku2021-07-151-0/+46
| | | | | * tests/018/path.tl: test coverage for abs-path-p and portable-abs-path-p.
* tests: guix fixes.Kaz Kylheku2021-07-132-1/+7
| | | | | | | | | | | | | | | | * tests/002/query-1.txr: Skip test if an executable /bin/sh doesn't exist, rather than the bogus reasons. * tests/010/json.tl: Change the condition for the command-put-json tests: not whether cat is found in the search path but whether /bin/sh exists and is executable. * tests/017/realpath.tl: Also quit if /usr/bin doesn't exist. * tests/018/path-test.tl: Exit succesfully if /bin/sh does not exist. Revert the earlier change. * tests/018/process.tl: Quit if no executable /bin/sh exists.
* tests: weaken condition in path search for sh.Kaz Kylheku2021-07-121-1/+1
| | | | | | | * tests/018/path-test.tl: In the Guix build environment, the shell might be found at a path not ending in bin. Let's ust test for ending in /bin. Reported and investigated by Paul A. Patience.
* New function: add-suffix.Kaz Kylheku2021-07-101-0/+19
| | | | | | | | | | | * stream.c, stream.h (add_suffix): New function. (stream_init): add-suffix intrinsic registered. * tests/018/path.tl: Tests. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* New functions: trim-short-suffix, trim-long-suffix.Kaz Kylheku2021-07-101-0/+48
| | | | | | | | | | | | | | | * lib.c, lib.h (chk_substrdup): New function. * stream.c, stream.h (trim_short_suffix, trim_long_suffix): New functions. (stream_init): trim-short-suffix and trim-long-suffix intrinsics registered. * tests/018/path.tl: New tests. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* suffix functions: new test cases.Kaz Kylheku2021-07-101-1/+3
| | | | | * tests/018/path.tl: New cases covering dotted name situation, which is not a suffix, but can have a suffix.
* tests: fix malformed chmod.tl.Paul A. Patience2021-07-051-11/+11
| | | | | | * tests/018/chmod.tl (os): Fix final parentheses of defvarl form accidentally encompassing the rest of the source file. Replace tabs with spaces.
* path-search: fix test for sh not being in /bin.Kaz Kylheku2021-07-041-1/+1
| | | | | * tests/018/path-test.tl: Check that the result of a path-search for "sh" only ends in "/bin/sh", not that it is precisely "/bin/sh".
* suffix functions: ignore trailing slashes.Kaz Kylheku2021-07-031-2/+16
| | | | | | | | | | | | | | | | Another requirements tweak to short-suffix and long-suffix: ignore one or more trailing slashes, instead of just one. This harmonizes with base-name, which does same, that requirement being copies from the POSIX basename utility. * stream.c (short_suffix, long_suffix): If sl points to a trailing slash which is the start of a suffix that consists of nothing but trailing slashes, then we pretend it isn't there. * tests/018/path.tl: Adjusted two existing test cases, and added more. * txr.1: Documented.
* path-cat: becomes variadic.Kaz Kylheku2021-06-291-0/+32
| | | | | | | | | | | | | * stream.c (path_vcat): New static function. (stream_init): Register path-cat instrinsic to path_vcat rather than path_cat. * tests/018/path.tl: path-cat tests: all examples from documentation, plus others. * txr.1: Documented existing behaviors that were not clear, like when inputs are empty. Documented new variadic semantics. Examples added.
* New function: path-search.Kaz Kylheku2021-06-291-0/+15
| | | | | | | | | | | | * lisplib.c (path_test_set_entries): Autoload on path-search. * stdlib/path-test.tl (path-search): New function. * tests/018/path-test.tl: New file. * txr.1: Documented. * stdlib/doc-lookup.tl: Updated.
* base-name: bug with empty string suffix.Kaz Kylheku2021-06-261-0/+28
| | | | | | | | * stream.c (base_name): We must check for a zero length suffix, otherwise sub(base, zero, neg(length(suff))) produces an empty string. * tests/018/path.tl: Test cases for base-name.
* suffix functions: requirements change.Kaz Kylheku2021-06-261-22/+22
| | | | | | | | | | | | | | | | | The short-suffix and long-suffix functions will now return the suffix including the leading period. This was a suggestion from user Paul A. Patience, which is a good requirement. Since these functions were newly introduced just the last release, I'm not going to provide backwards compatibility switching for them. * stream.c (short_suffix, long_suffix): Duplicate the suffix starting at the dot, not dot + 1. * tests/018/path.tl: Test cases updated. * txr.1: Documentation updated.
* suffix functions: leading dot is not delimiterKaz Kylheku2021-06-261-13/+23
| | | | | | | | | | * stream.c (short_suffix, long_suffix): Do not treat the starting dot of the last componet as a suffix delimiter. * tests/018/path.tl: Test cases edited to reflect requirements change; new tests added. * txr.1: Updated.
* short-suffix, long-suffix: no match across slash.Kaz Kylheku2021-06-221-0/+26
| | | | | | | | | | | * stream.c (short_suffix, long_suffix): Take path separator characters into account; the suffix must not span across separators. The trailing separator must also not appear in the suffix. * tests/018/path.tl: Test cases added. * txr.1: Redocumented.
* New functions: long-suffix, short-suffix.Kaz Kylheku2021-06-221-0/+34
| | | | | | | | | | | | | | * stream.c (short_suffix, long_suffix): New functions. (stream_init): short-suffix and long-suffix intrinsics registered. * stream.c (short_suffix, long_suffix): Declared. * tests/018/path.tl: New file. * txr.1: Documented. * share/txr/stdlib/doc-syms.tl: Updated.
* subprocesses: cygwin fixes.Kaz Kylheku2021-06-201-3/+9
| | | | | | | | | | | | | | * stream.c (fds_subst, fds_swizzle, fds_restore): These functions are used on Cygwin by some functions that are based on spawn, and so must be avaiable. * tests/018/process.tl: Two fixes here. Firstly, the 1>&1 redirection in one of the tests should be 1>&2 on all platforms. That a temporary edit left behind from massaging the tests and the code. Secondly, some weird results are observed on Cygwin. The communication with the child sees an extra carriage return and space sneak in. I'm just codifying this as Cygwin's way of passing the test case; it's likely unfixable at the application level.
* subprocesses: a few test cases.Kaz Kylheku2021-06-201-0/+18
| | | | * tests/018/process.tl: New file.
* format: revise numeric handling.Kaz Kylheku2021-06-141-5/+96
| | | | | | | | | | | | | | | | | | | | | | | There are a number of issues, such as left adjustment not working and such. This needs a better treatment from the requirements level, through to a set of test cases. * stream.c (max, min): Macros macros added, in their usual form. (vformat_num): Implement new rules which suppress the zero and space characters used in place of a sign if they overflow the field width. (formatv): Clamp integer precision field to width - 1 for integers, for consistency with floating-point handling. For floating-point values under ~a and ~s, do not force the second stage precision to width - 1; only clamp it if it is greater. * format.tl: Numerous new tests. * txr.1: Significant redocumenting of this area. The handling of numbers is described as a two stage process, clarifying the changing role of "precision" in the two stages.
* format: new precision - character for zero.Kaz Kylheku2021-06-141-0/+5
| | | | | | | | | | | * stream.c (formatv): The - precision option character produces a "sign" that is a zero. If this is used with leading zeros, it will avoid generating a space. The requirements can use improvement here, but one step at a time. * tests/018/format.tl: Some tests. * txr.1: Documented.
* pic: support quasiliteral as format string.Kaz Kylheku2021-06-111-0/+5
| | | | | | | | | | | | * share/txr/stdlib/pic.tl (pic): Refactor string compilation code into local function which has access to the overall argument list. Recognize the quasiliteral case and translate by compiling all the string parts, then forming a recombined quasiliteral where the compiled parts are substituted. * tests/018/format.tl: test case for this. * txr.1: Documented.
* pic: allow trailing exclamation.Kaz Kylheku2021-06-111-0/+5
| | | | | | | | | | * share/txr/stdlib/pic.tl (expand-pic-num, expand-pic, pic): Allow ### to be followed by a single !. This is not counted toward the field width. * tests/018/format.tl: Cover with some tests. * txr.1: Doc updated.
* pic: clarification and tests.Kaz Kylheku2021-06-111-0/+6
| | | | | | | | * tests/018/format.tl: Add tests which combine overflow flagging with +/-. The space generated by - contributes to overflow. * txr.1: Clarify overflow issue in documentation.
* pic: test cases and fixes.Kaz Kylheku2021-06-111-0/+88
| | | | | | | | | | | | | | | | | | * share/txr/stdlib/pic.tl (expand-pic-num): Bug: when a field overflows, the (rest ...) call truncates the leftmost digit. A failing test case is (pic "#.#" 12) which produces "2.0" instead of "12.0". Firstly, we only need that logic at all in the zero padding case. When the number is positive, we stick in the + request, so we are sure to get a + character. The rest call then predictably chops off the + rather than a digit. (pic-join-opt): Fix two bugs here in the string-string combine case: using s2 instead of s1, and not splicing in rest. (expand-pic, pic): Implement tightening for escape sequences. If ~ is not followed by anything, or not followed by the documented characters for escaping, it is erroneous. * format.tl: Battery of new tests.
* format: ~x/~X specifiers support buffers.Kaz Kylheku2021-05-041-0/+29
| | | | | | | | | | | | | * buf.c (buf_hex): New function. * buf.h (buf_hex): Declared. * stream.c (formatv): Support printing of buffers in hex via temporary buffer containing hex characters, similarly to how bignums are handled. * tests/018/format.tl: New file, providing some coverage over new and affected code.
* rel-path: bugfixes.Kaz Kylheku2021-05-031-1/+6
| | | | | | | | | | | | | | | * share/txr/stdlib/copy-file.tl: When removing .. components, a dotdot must only cancel preceding non-dotdot. We must check not only that the out stack is not empty but that the top element isn't dotdot. Also, eliminate empty components, like the documentation says. Lastly, we must check for the impossible cases, when the from path uses .. components that are impossible to navigate backwards to form a relative path. * tests/018/rel-path.tl: Test cases added. * txr.1: Updated with additional descriptions, fixes and examples.
* New function: rel-path.Kaz Kylheku2021-05-031-0/+17
| | | | | | | | | | | | | * lisplib.c (copy_file_set_entries): Add rel-path as autoload trigger for copy-file module. * share/txr/stdlib/copy-file.tl (rel-path): New function. * tests/018/rel-path.tl: New file. * txr.1: Documented. * share/txr/stdlib/doc-syms.tl: Updated.
* openbsd: fix tests.Kaz Kylheku2021-04-201-27/+28
| | | | | | | | | | | | | | | | | | | * tests/014/socket-basic.tl (%iters%): Also reduce to 2000 on OpenBSD, to avoid the default limit on UDP datagram size. * tests/017/glob-carray.tl: Use the BSD-style struct glob-t on OpenBSD also. * tests/017/glob-zarray.tl: Likewise. * tests/018/chmod.tl (os): New global variable. (test-sticky): s-isvtx not allowed for non-root user on OpenBSD, so we falsify this variable. * tests/common.tl (os-symbol): Add OpenBSD case, producing :openbsd keyword symbol. (libc): Let's just use (dlopen nil) for any platform that isn't Cygwin or Cygnal.
* tests: implicitly generate empty .expected files.Kaz Kylheku2021-04-121-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Makefile (%.expected): New implicit rule. Whenever a test requires a .expected file, if it is missing, we create an empty one. This file will be treated as an intermediate by GNU Make, which means that it will be deleted when make terminates. * tests/012/compile.tl: Some of the .tl files no longer have an .expected file, so we have to test for that in the catenating logic. * tests/008/call-2.expected, * tests/008/no-stdin-hang.expected, * tests/011/macros-3.expected, * tests/011/patmatch.expected, * tests/012/aseq.expected, * tests/012/ashwin.expected, * tests/012/compile.tl, * tests/012/cont.expected, * tests/012/defset.expected, * tests/012/ifa.expected, * tests/012/oop-seq.expected, * tests/012/parse.expected, * tests/012/quasi.expected, * tests/012/quine.expected, * tests/012/seq.expected, * tests/012/struct.expected, * tests/012/stslot.expected, * tests/014/dgram-stream.expected, * tests/014/in6addr-str.expected, * tests/014/inaddr-str.expected, * tests/014/socket-basic.expected, * tests/015/awk-fconv.expected, * tests/015/split.expected, * tests/015/trim.expected, * tests/016/arith.expected, * tests/016/ud-arith.expected, * tests/017/ffi-misc.expected, * tests/018/chmod.expected: Empty file deleted.
* chmod: disable some chmod tests on Cygwin.Kaz Kylheku2020-12-241-21/+26
| | | | | | | * tests/018/chmod.tl: Certain chmod test cases no longer work on Cygwin. The issue is the chmod system call. It produces completely nonsensical results in some cases. We disable these test cases on Cygwin.
* chmod tests: avoid sticky bit when not available.Kaz Kylheku2020-02-101-18/+25
| | | | | | | | | | | | | On Solaris, we can't set the sticky bit on a non-directory without special privilege. Let's detect whether we can set the sticky bit on our test object. If we can't, then we avoid executing tests that involve the sticky bit. * tests/018/chmod.tl (test-sticky): New variable. (cht): If test-sticky is false, only run the test if none of the inputs contain a 't'.
* chmod tests: use macro.Kaz Kylheku2020-02-101-3/+3
| | | | | | * tests/018/chmod.tl (mode-bits): Change body to correct quasiquote. (cht): Use previously unreferenced mode-bits macro.
* chmod: ugo perms sees effects from same clause.Kaz Kylheku2020-02-081-0/+1
| | | | | | | | | This is Coreutils chmod behavior. * sysif.c (chmod_wrap): Sample cmode into oldm at the start of every assigment before punching the masked hole into cmode. * tests/018/chmod.tl: Breaking test case added.
* chmod: ugo must refer to unaltered perms.Kaz Kylheku2020-02-081-0/+5
| | | | | | | | | | | | | | | | | | | Within the same clause, permissions given by ugo must refer to the unaltered permissions, before the target bits were masked out, otherwise self-assignment like o=o just clears the permissions. The other self-referential perm is X: it checks for existing x permissions. That works with the current value. * sysif.c (chmod_wrap): Keep the old permissions in a new loop variable called oldm. The u, g and o perms refer to oldm rather than to the updated value in cmode. When we hit a comma, we update oldm to the current value. The code for this is now in one place with a goto. * tests/018/chmod.tl: New test case that fails in the absence of this fix. Test cases confirming that X refers to the current permissions.
* chmod: bug handling comma after right hand ugo.Kaz Kylheku2020-02-071-0/+1
| | | | | | | | | | | | * sysif.c (chmod_wrap): The chm_comma state is transitioned to after seeing a right hand side u, g or o. These do not combine with other letters, so ch_comma expects a comma after which a new permission clause we start,. Therefore the srcm and who variables must be rest. It's also a good idea to continue the loop. * tests/018/chmod.tl: New test case which exposed the above issue.
* chmod: setuid/setgid bit bugfix and new tests.Kaz Kyheku2020-02-071-5/+6
| | | | | | | | | | | | | | | | | | * sysif.c (chmod_wrap): Again, related to the = operator, we must not punch a hole in the suid and sgid bits for all non-directory objects. This was based on a misinterpretation of some coreutils documentation, and doesn't match the actual behavior. Rather, if the owner is a target (including implicitly) then we mask out suid; and if the group owner is a targe, then we mask out sgid. Thus when we are doing a permission set not targetting the owner we don't touch suid, and similarly for the group owner and setgid. * tests/018/chmod.tl: Failed test diagnostics now identify which mode string was used. Some existing tests involving the suid/sgid bits have to be revised because this commit reflects a correction in the requirements. One new test is added.
* chmod: bugfix and new tests.Kaz Kyheku2020-02-071-0/+7
| | | | | | | | | | | | * sysif.c (chmod_wrap): When processing set (=), only punch a hole in the target permission area once per clause, so as not to clobber previously set modes. We do this by checking for the chm_perm state. Whenever '=' is processed, the state machine enters into that state; when any permission letter is then processed, it transitions out of that state. This gets the "u=rwsx" test to pass. * tests/018/chmod.tl: New tests.
* New tests for chmod.Kaz Kyheku2020-02-072-0/+34
The chmod fixes in the previous several commits were caught by this. * Makefile (tst/tests/018/chmod.ok): Set up TXR_ARGS for this test to give it the location of the temporary file to use as the object for testing permissions. (tst/tests/018): Disable TXR_DBG_OPTS for new directory. * tests/018/chmod.tl: New file. * tests/018/chmod.expected: Likewise. * tests/perm.tl: Likewise.
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