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Fix bug with quoting buffers containing NUL when backslashing escapes.
This bug was exposed by the other changes in this patch.
(quotearg_n_options): New arg ARGSIZE.
All callers changed.
(quoting_options_from_style): New function.
(quotearg_n_style): Use it.
(quotearg_n_style_mem): New function.
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(SIZE_MAX, UINT_MAX): New macros.
(quotearg_n_options): Abort if N is negative.
Avoid overflow check on hosts where size_t is 64 bits and int
is 32 bits, as overflow is impossible there.
Fix off-by-one typo that caused unnecessary reallocation.
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Remove workaround macros for hosts that have mbrtowc but not
mbstate_t, as we now insist on proper declarations for both
before using mbrtowc.
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slot vector a constant, since it might get modified.
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buffer, so that the caller can always quote one small
component of a "memory exhausted" message in slot 0.
From a suggestion by Jim Meyering.
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so that mbstate_t is always defined.
Do not inspect MB_LEN_MAX, since it's incorrectly defined to
be 1 in at least one GCC installation, and this configuration
error is likely to be common. Ignoring MB_LEN_MAX hurts
performance on hosts that have mbrtowc but have only unibyte
locales, but I assume these hosts are rare.
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<wchar.h>: Include only if HAVE_MBRTOWC && 1 < MB_LEN_MAX.
(MB_CUR_MAX): Redefine to 1 if ! (HAVE_MBRTOWC && 1 < MB_LEN_MAX).
(quotearg_buffer_restyled): If a unibyte locale, don't bother to
invoke multibyte primitives.
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Use defined mbstate_t, not HAVE_MBSTATE_T_OBJECT,
to decide whether to define the BeOS workaround macro;
this adjusts to the change to AC_MBSTATE_T.
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quotearg_buffer_restyled): Add support for
clocale_quoting_style. Undo previous change to
locale_quoting_style behavior, and undo the "{LEFT QUOTATION MARK}"
and "{RIGHT QUOTATION MARK}" msgids.
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newer, ISO-style fonts. See:
http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
Instead, quote "like this" by default. Let the translator
tailor the locale-specific quoting behavior by providing
translations for {LEFT QUOTATION MARK} and {RIGHT QUOTATION MARK}.
(N_): New macro.
(gettext_default): New function.
(quotearg_buffer_restyled): Use
gettext_default ("{LEFT QUOTATION MARK}", "\"") for left quote, and
gettext_default ("{RIGHT QUOTATION MARK}", "\"") for right quote.
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HAVE_MBRTOWC is set. Required at least for irix-5.6, which lacks mbrtowc.
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(iswprint): Use ISPRINT when substituting our own mbrtowc.
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for Solaris 2.5.
(mbrtowc, mbstate_t): Define substitutes if
HAVE_MBRTOWC && HAVE_WCHAR_H && !HAVE_MBSTATE_T_OBJECT.
(iswprint): Define to 1 if !defined iswprint && !HAVE_ISWPRINT,
not if ! (HAVE_MBRTOWC && HAVE_WCHAR_H).
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(quotearg_buffer_restyled): Use it.
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inclusion of wctype.h to work around solaris2.6 namespace pollution.
(ISPRINT): Likewise.
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alert, backslash, formfeed, and vertical tab unnecessarily in
shell quoting style.
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(ISGRAPH): Remove.
(ISPRINT): New macro.
(<wchar.h>): Include if HAVE_MBRTOWC && HAVE_WCHAR_H.
(isprint, mbrtowc, mbsinit, mbstate_t): New macros,
defined if ! (HAVE_MBRTOWC && HAVE_WCHAR_H).
(quotearg_buffer_restyled): New function, with most of the old
quotearg_buffer's contents.
Major rewrite to support multibyte characters.
(quotearg_buffer): Now just calls quotearg_buffer_restyled.
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(_): New macro.
(quoting_style_args, quoting_style_v, quotearg_buffer): Add support
for locale_quoting_style, using _("`") and _("'") for open and close
quote symbols.
Do not quote spaces in escape_quoting_style.
(quotearg_n_style, quotearg_style): New functions.
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Don't quote spaces if C quoting style.
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(and hence that of the local `n1', too) to `int' at Paul's request.
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unsigned int, not just int.
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Suggestion from Paul Eggert.
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(quotearg_n): Change type of 1st parameter from int to unsigned int.
(quotearg_n_options): Likewise.
From Akim Demaille.
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From Bruno Haible.
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