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These two default aliases are useful on interactive shells. In scripts, they interfere with possible function or command names. As of this commit, these final two default aliases are only loaded for interactive shells, leaving zero default aliases for scripts. This completes the project to get rid of misguided default aliases. src/cmd/ksh93/include/shtable.h, src/cmd/ksh93/data/aliases.c: src/cmd/ksh93/sh/init.c: - Add empty alias table shtab_noaliases[] for scripts. - Rename inittree() to sh_inittree() and make it external. - nv_init(), sh_reinit(): Initialise empty alias tree for scripts. src/cmd/ksh93/sh/main.c: sh_main(): - If interactive, reinitialise alias tree for interactive shells. src/cmd/ksh93/tests/alias.sh: - To test default alias removal, launch shell with -i.
63 lines
2.8 KiB
Text
63 lines
2.8 KiB
Text
TODO for AT&T ksh93, 93u+m bugfix branch
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______
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Fix regression test failures:
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- On FreeBSD, there is a test failure in [[ -N file ]] in bracket.sh.
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- On OpenBSD, there are 15 locale-related test failures in variables.sh.
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______
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Fix build system:
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- ksh does not currently build on NetBSD, AIX, Solaris, or QNX.
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- Reimport the removed nmake. It is necessary for changes in Makefiles
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to take effect. The machine-generated Mamfiles are now used as a fallback,
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but they are not meant to be edited by hand.
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______
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Fix currently known bugs affecting shell scripting. These are identified by
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their modernish IDs. For exact details, see code/comments in:
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https://github.com/modernish/modernish/tree/0.16/lib/modernish/cap/
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- BUG_BRACQUOT: shell quoting within bracket patterns has no effect. This
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bug means the '-' retains it special meaning of 'character range', and an
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initial ! (and, on some shells, ^) retains the meaning of negation, even
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in quoted strings within bracket patterns, including quoted variables.
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- BUG_CMDEXPAN: if the 'command' command results from an expansion, it acts
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like 'command -v', showing the path of the command instead of executing it.
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For example:
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v=command; "$v" ls
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or
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set -- command ls; "$@"
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don't work.
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See also: https://github.com/att/ast/issues/963
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- BUG_CMDSPEXIT: preceding a "special builtin"[*] (other than 'eval', 'exec',
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'return' or 'exit') with 'command' does not always stop it from exiting
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the shell if the builtin encounters error.
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[*] https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_14
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- BUG_CSUBSTDO: If standard output (file descriptor 1) is closed before
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entering a $(command substitution), and any other file descriptors are
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redirected within the command substitution, commands such as 'echo' will
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not work within the command substitution, acting as if standard output is
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still closed.
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- BUG_IFSGLOBS: In glob pattern matching (as in case or parameter
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substitution with # and %), if IFS starts with ? or * and the "$*"
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parameter expansion inserts any IFS separator characters, those characters
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are erroneously interpreted as wildcards when quoted "$*" is used as the
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glob pattern.
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- BUG_LOOPRET2: If a 'return' command is given without a status argument
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within the set of conditional commands in a 'while' or 'until' loop (i.e.,
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between 'while'/'until' and 'do'), the exit status passed down from the
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previous command is ignored and the function returns with status 0
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instead.
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- BUG_MULTIBIFS: We're on a UTF-8 locale and the shell supports UTF-8
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characters in general (i.e. we don't have WRN_MULTIBYTE) – however, using
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multi-byte characters as IFS field delimiters still doesn't work. For
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example, "$*" joins positional parameters on the first byte of IFS instead
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of the first character.
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