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22742: parameter padding uses string lengths unless (m) flag set

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22743: restrict sh "- [args]" -> "-xv [-- args]" hack to sh mode
This commit is contained in:
Peter Stephenson 2006-09-20 09:22:34 +00:00
parent 1554b81053
commit 2bfad02a94
6 changed files with 110 additions and 39 deletions
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4
Doc/Zsh/builtins.yo
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@ -1160,6 +1160,10 @@ positional parameters will be unset.
If no arguments and no `tt(-)tt(-)' are given, then the names and values of
all parameters are printed on the standard output. If the only argument is
`tt(PLUS())', the names of all parameters are printed.
For historical reasons, `tt(set -)' is treated as `tt(set +xv)'
and `tt(set -) var(args)' as `tt(set +xv --) var(args)' when in
any other emulation mode than zsh's native mode.
)
module(setcap)(zsh/cap)
findex(setopt)

22
Doc/Zsh/expn.yo
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@ -869,11 +869,23 @@ var(string1) and var(string2) are given, tt(string2) is inserted
once directly to the left of each word, truncated if necessary, before
var(string1) is used to produce any remaining padding.
If the tt(MULTIBYTE) option is in effect, screen character widths will
be used for the calculation of padding; otherwise individual bytes are
treat as occupying one unit of width. Control characters are always
assumed to be one unit wide; this allows the mechanism to be used
for generating repetitions of control characters.
If the tt(MULTIBYTE) option is in effect, the flag tt(m) may also
be given, in which case widths will be used for the calculation of
padding; otherwise individual multibyte characters are treated as occupying
one unit of width.
IF the tt(MULTIBYTE) option is not in effect, each byte in the string is
treated as occupying one unit of width.
Control characters are always assumed to be one unit wide; this allows the
mechanism to be used for generating repetitions of control characters.
)
item(tt(m))(
Only useful together with tt(l) and tt(r) when the tt(MULTIBYTE) option
is in effect. Use the character width reported by the system in
calculating the how much of the string it occupies. Most printable
characters have a width of one unit, however certain Asian character sets
and certain special effects use wider characters.
)
item(tt(r:)var(expr)tt(::)var(string1)tt(::)var(string2)tt(:))(
As tt(l), but pad the words on the right and insert var(string2)