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Update from Gnulib

Browse Source 
This incorporates:
2019-08-25 intprops.h, verify.h: port better to clang
2019-08-21 New strip-trailing-space option for srclist-update
* .gitattributes: Remove doc/misc/texinfo.tex special case,
which is no longer needed now that Gnulib trims blank-at-eol.
* build-aux/install-sh, doc/misc/texinfo.tex, lib/intprops.h:
* lib/regex_internal.c, lib/verify.h: Copy from Gnulib.
This commit is contained in:
Paul Eggert 2019-09-02 12:37:52 -07:00
parent 7c37b17b3d
commit fda015e7b8
6 changed files with 208 additions and 158 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
.gitattributes vendored
View File

@ -31,9 +31,6 @@ test/manual/etags/html-src/algrthms.html whitespace=cr-at-eol
# The todo-mode file format includes trailing whitespace.
*.tod[aorty] -whitespace=blank-at-eol
# The upstream maintainer does not want to remove trailing whitespace.
doc/misc/texinfo.tex -whitespace=blank-at-eol
# Some files should not be treated as text when diffing or merging.
*.cur binary
*.gpg binary

13
build-aux/install-sh
View File

@ -451,7 +451,18 @@ do
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
(umask $cp_umask &&
{ test -z "$stripcmd" || {
# Create $dsttmp read-write so that cp doesn't create it read-only,
# which would cause strip to fail.
if test -z "$doit"; then
: >"$dsttmp" # No need to fork-exec 'touch'.
else
$doit touch "$dsttmp"
fi
}
} &&
$doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#

220
doc/misc/texinfo.tex
View File

@ -1,9 +1,9 @@
% texinfo.tex -- TeX macros to handle Texinfo files.
%
%
% Load plain if necessary, i.e., if running under initex.
\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
%
\def\texinfoversion{2019-06-01.23}
\def\texinfoversion{2019-08-18.20}
%
% Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc.
%
@ -218,7 +218,7 @@
% @errormsg{MSG}. Do the index-like expansions on MSG, but if things
% aren't perfect, it's not the end of the world, being an error message,
% after all.
%
%
\def\errormsg{\begingroup \indexnofonts \doerrormsg}
\def\doerrormsg#1{\errmessage{#1}}
@ -323,9 +323,9 @@
% the output routine. The saved contents are valid until we actually
% \shipout a page.
%
% (We used to run a short output routine to actually set \topmark and
% \firstmark to the right values, but if this was called with an empty page
% containing whatsits for writing index entries, the whatsits would be thrown
% (We used to run a short output routine to actually set \topmark and
% \firstmark to the right values, but if this was called with an empty page
% containing whatsits for writing index entries, the whatsits would be thrown
% away and the index auxiliary file would remain empty.)
%
\newtoks\savedtopmark
@ -365,7 +365,7 @@
\let\thischapterheading\thischapter
\else
% \thischapterheading is the same as \thischapter except it is blank
% for the first page of a chapter. This is to prevent the chapter name
% for the first page of a chapter. This is to prevent the chapter name
% being shown twice.
\def\thischapterheading{}%
\fi
@ -448,7 +448,7 @@
}%
}
% First remove any @comment, then any @c comment. Pass the result on to
% First remove any @comment, then any @c comment. Pass the result on to
% \argcheckspaces.
\def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm}
\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm}
@ -1137,7 +1137,7 @@
% for display in the outlines, and in other places. Thus, we have to
% double any backslashes. Otherwise, a name like "\node" will be
% interpreted as a newline (\n), followed by o, d, e. Not good.
%
%
% See http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html and
% related messages. The final outcome is that it is up to the TeX user
% to double the backslashes and otherwise make the string valid, so
@ -1442,7 +1442,7 @@
% their "best" equivalent, based on the @documentencoding. Too
% much work for too little return. Just use the ASCII equivalents
% we use for the index sort strings.
%
%
\indexnofonts
\setupdatafile
% We can have normal brace characters in the PDF outlines, unlike
@ -2726,7 +2726,7 @@
}
% Commands to set the quote options.
%
%
\parseargdef\codequoteundirected{%
\def\temp{#1}%
\ifx\temp\onword
@ -2767,7 +2767,7 @@
% If we are in a monospaced environment, however, 1) always use \ttsl,
% and 2) do not add an italic correction.
\def\dosmartslant#1#2{%
\ifusingtt
\ifusingtt
{{\ttsl #2}\let\next=\relax}%
{\def\next{{#1#2}\futurelet\next\smartitaliccorrection}}%
\next
@ -2914,14 +2914,14 @@
\gdef\codedash{\futurelet\next\codedashfinish}
\gdef\codedashfinish{%
\normaldash % always output the dash character itself.
%
%
% Now, output a discretionary to allow a line break, unless
% (a) the next character is a -, or
% (b) the preceding character is a -.
% E.g., given --posix, we do not want to allow a break after either -.
% Given --foo-bar, we do want to allow a break between the - and the b.
\ifx\next\codedash \else
\ifx\codedashprev\codedash
\ifx\codedashprev\codedash
\else \discretionary{}{}{}\fi
\fi
% we need the space after the = for the case when \next itself is a
@ -3003,7 +3003,7 @@
% For pdfTeX and LuaTeX
\ifurefurlonlylink
% PDF plus option to not display url, show just arg
\unhbox0
\unhbox0
\else
% PDF, normally display both arg and url for consistency,
% visibility, if the pdf is eventually used to print, etc.
@ -3016,7 +3016,7 @@
% For XeTeX
\ifurefurlonlylink
% PDF plus option to not display url, show just arg
\unhbox0
\unhbox0
\else
% PDF, normally display both arg and url for consistency,
% visibility, if the pdf is eventually used to print, etc.
@ -3074,10 +3074,10 @@
}
}
% By default we'll break after the special characters, but some people like to
% break before the special chars, so allow that. Also allow no breaking at
% By default we'll break after the special characters, but some people like to
% break before the special chars, so allow that. Also allow no breaking at
% all, for manual control.
%
%
\parseargdef\urefbreakstyle{%
\def\txiarg{#1}%
\ifx\txiarg\wordnone
@ -3095,7 +3095,7 @@
\def\wordbefore{before}
\def\wordnone{none}
% Allow a ragged right output to aid breaking long URL's. Putting stretch in
% Allow a ragged right output to aid breaking long URL's. Putting stretch in
% between characters of the URL doesn't look good.
\def\urefallowbreak{%
\hskip 0pt plus 4 em\relax
@ -3299,7 +3299,7 @@
% @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}.
% Ignore unless FMTNAME == tex; then it is like @iftex and @tex,
% except specified as a normal braced arg, so no newlines to worry about.
%
%
\def\outfmtnametex{tex}
%
\long\def\inlinefmt#1{\doinlinefmt #1,\finish}
@ -3307,7 +3307,7 @@
\def\inlinefmtname{#1}%
\ifx\inlinefmtname\outfmtnametex \ignorespaces #2\fi
}
%
%
% @inlinefmtifelse{FMTNAME,THEN-TEXT,ELSE-TEXT} expands THEN-TEXT if
% FMTNAME is tex, else ELSE-TEXT.
\long\def\inlinefmtifelse#1{\doinlinefmtifelse #1,,,\finish}
@ -3323,7 +3323,7 @@
% *right* brace they would have to use a command anyway, so they may as
% well use a command to get a left brace too. We could re-use the
% delimiter character idea from \verb, but it seems like overkill.
%
%
\long\def\inlineraw{\tex \doinlineraw}
\long\def\doinlineraw#1{\doinlinerawtwo #1,\finish}
\def\doinlinerawtwo#1,#2,\finish{%
@ -3600,7 +3600,7 @@
% for non-CM glyphs. That is ec* for regular text and tc* for the text
% companion symbols (LaTeX TS1 encoding). Both are part of the ec
% package and follow the same conventions.
%
%
\def\ecfont{\etcfont{e}}
\def\tcfont{\etcfont{t}}
%
@ -3672,7 +3672,7 @@
after the title page.}}%
\def\setshortcontentsaftertitlepage{%
\errmessage{@setshortcontentsaftertitlepage has been removed as a Texinfo
command; move your @shortcontents and @contents commands if you
command; move your @shortcontents and @contents commands if you
want the contents after the title page.}}%
\parseargdef\shorttitlepage{%
@ -3727,7 +3727,7 @@
% don't worry much about spacing, ragged right. This should be used
% inside a \vbox, and fonts need to be set appropriately first. \par should
% be specified before the end of the \vbox, since a vbox is a group.
%
%
\def\raggedtitlesettings{%
\rm
\hyphenpenalty=10000
@ -4350,7 +4350,7 @@
}
% multitable-only commands.
%
%
% @headitem starts a heading row, which we typeset in bold. Assignments
% have to be global since we are inside the implicit group of an
% alignment entry. \everycr below resets \everytab so we don't have to
@ -4669,13 +4669,13 @@
% Like \expandablevalue, but completely expandable (the \message in the
% definition above operates at the execution level of TeX). Used when
% writing to auxiliary files, due to the expansion that \write does.
% If flag is undefined, pass through an unexpanded @value command: maybe it
% If flag is undefined, pass through an unexpanded @value command: maybe it
% will be set by the time it is read back in.
%
% NB flag names containing - or _ may not work here.
\def\dummyvalue#1{%
\expandafter\ifx\csname SET#1\endcsname\relax
\noexpand\value{#1}%
\string\value{#1}%
\else
\csname SET#1\endcsname
\fi
@ -4693,7 +4693,7 @@
% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
% with @set.
%
%
% To get the special treatment we need for `@end ifset,' we call
% \makecond and then redefine.
%
@ -4726,7 +4726,7 @@
% without the @) is in fact defined. We can only feasibly check at the
% TeX level, so something like `mathcode' is going to considered
% defined even though it is not a Texinfo command.
%
%
\makecond{ifcommanddefined}
\def\ifcommanddefined{\parsearg{\doifcmddefined{\let\next=\ifcmddefinedfail}}}
%
@ -4834,8 +4834,8 @@
\def\docodeindex#1{\edef\indexname{#1}\parsearg\docodeindexxxx}
\def\docodeindexxxx #1{\doind{\indexname}{\code{#1}}}
% Used for the aux, toc and index files to prevent expansion of Texinfo
% Used for the aux, toc and index files to prevent expansion of Texinfo
% commands.
%
\def\atdummies{%
@ -5180,7 +5180,7 @@
}
\def\defglyph#1#2{\def#1##1{#2}} % see above
% #1 is the index name, #2 is the entry text.
@ -5207,7 +5207,7 @@
\ifx\suffix\indexisfl\def\suffix{f1}\fi
% Open the file
\immediate\openout\csname#1indfile\endcsname \jobname.\suffix
% Using \immediate above here prevents an object entering into the current
% Using \immediate above here prevents an object entering into the current
% box, which could confound checks such as those in \safewhatsit for
% preceding skips.
\typeout{Writing index file \jobname.\suffix}%
@ -5259,7 +5259,7 @@
\ifx\segment\isfinish
\else
%
% Fully expand the segment, throwing away any @sortas directives, and
% Fully expand the segment, throwing away any @sortas directives, and
% trim spaces.
\edef\trimmed{\segment}%
\edef\trimmed{\expandafter\eatspaces\expandafter{\trimmed}}%
@ -5317,12 +5317,12 @@
% the current value of \escapechar.
\def\escapeisbackslash{\escapechar=`\\}
% Use \ in index files by default. texi2dvi didn't support @ as the escape
% character (as it checked for "\entry" in the files, and not "@entry"). When
% the new version of texi2dvi has had a chance to become more prevalent, then
% the escape character can change back to @ again. This should be an easy
% change to make now because both @ and \ are only used as escape characters in
% index files, never standing for themselves.
% Use \ in index files by default. texi2dvi didn't support @ as the escape
% character (as it checked for "\entry" in the files, and not "@entry"). When
% the new version of texi2dvi has had a chance to become more prevalent, then
% the escape character can change back to @ again. This should be an easy
% change to make now because both @ and \ are only used as escape characters in
% index files, never standing for themselves.
%
\set txiindexescapeisbackslash
@ -5342,7 +5342,7 @@
\def\}{\rbracechar{}}%
\uccode`\~=`\\ \uppercase{\def~{\backslashchar{}}}%
%
% Split the entry into primary entry and any subentries, and get the index
% Split the entry into primary entry and any subentries, and get the index
% sort key.
\splitindexentry\indextext
%
@ -5523,18 +5523,18 @@
\uccode`\~=`\\ \uppercase{\if\noexpand~}\noexpand#1
\expandafter\ifx\csname SETtxiskipindexfileswithbackslash\endcsname\relax
\errmessage{%
ERROR: A sorted index file in an obsolete format was skipped.
ERROR: A sorted index file in an obsolete format was skipped.
To fix this problem, please upgrade your version of 'texi2dvi'
or 'texi2pdf' to that at <https://ftp.gnu.org/gnu/texinfo>.
If you are using an old version of 'texindex' (part of the Texinfo
If you are using an old version of 'texindex' (part of the Texinfo
distribution), you may also need to upgrade to a newer version (at least 6.0).
You may be able to typeset the index if you run
'texindex \jobname.\indexname' yourself.
You could also try setting the 'txiindexescapeisbackslash' flag by
You could also try setting the 'txiindexescapeisbackslash' flag by
running a command like
'texi2dvi -t "@set txiindexescapeisbackslash" \jobname.texi'. If you do
'texi2dvi -t "@set txiindexescapeisbackslash" \jobname.texi'. If you do
this, Texinfo will try to use index files in the old format.
If you continue to have problems, deleting the index files and starting again
If you continue to have problems, deleting the index files and starting again
might help (with 'rm \jobname.?? \jobname.??s')%
}%
\else
@ -5603,7 +5603,7 @@
% bottom of a column to reduce an increase in inter-line spacing.
\nobreak
\vskip 0pt plus 5\baselineskip
\penalty -300
\penalty -300
\vskip 0pt plus -5\baselineskip
%
% Typeset the initial. Making this add up to a whole number of
@ -5719,7 +5719,7 @@
\advance\dimen@ii by 1\dimen@i
\ifdim\wd\boxA > \dimen@ii % If the entry doesn't fit in one line
\ifdim\dimen@ > 0.8\dimen@ii % due to long index text
% Try to split the text roughly evenly. \dimen@ will be the length of
% Try to split the text roughly evenly. \dimen@ will be the length of
% the first line.
\dimen@ = 0.7\dimen@
\dimen@ii = \hsize
@ -5927,7 +5927,7 @@
\newbox\balancedcolumns
\setbox\balancedcolumns=\vbox{shouldnt see this}%
%
% Only called for the last of the double column material. \doublecolumnout
% Only called for the last of the double column material. \doublecolumnout
% does the others.
\def\balancecolumns{%
\setbox0 = \vbox{\unvbox\PAGE}% like \box255 but more efficient, see p.120.
@ -5955,7 +5955,7 @@
}%
% Now the left column is in box 1, and the right column in box 3.
%
% Check whether the left column has come out higher than the page itself.
% Check whether the left column has come out higher than the page itself.
% (Note that we have doubled \vsize for the double columns, so
% the actual height of the page is 0.5\vsize).
\ifdim2\ht1>\vsize
@ -6252,7 +6252,7 @@
\let\top\unnumbered
% Sections.
%
%
\outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz
\def\seczzz#1{%
\global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1
@ -6275,7 +6275,7 @@
}
% Subsections.
%
%
% normally calls numberedsubseczzz:
\outer\parseargdef\numberedsubsec{\numhead2{#1}}
\def\numberedsubseczzz#1{%
@ -6300,7 +6300,7 @@
}
% Subsubsections.
%
%
% normally numberedsubsubseczzz:
\outer\parseargdef\numberedsubsubsec{\numhead3{#1}}
\def\numberedsubsubseczzz#1{%
@ -7358,7 +7358,7 @@
% @indentedblock is like @quotation, but indents only on the left and
% has no optional argument.
%
%
\makedispenvdef{indentedblock}{\indentedblockstart}
%
\def\indentedblockstart{%
@ -7658,7 +7658,7 @@
% @deftypefnnewline on|off says whether the return type of typed functions
% are printed on their own line. This affects @deftypefn, @deftypefun,
% @deftypeop, and @deftypemethod.
%
%
\parseargdef\deftypefnnewline{%
\def\temp{#1}%
\ifx\temp\onword
@ -7677,8 +7677,8 @@
% \dosubind {index}{topic}{subtopic}
%
% If SUBTOPIC is present, precede it with a space, and call \doind.
% (At some time during the 20th century, this made a two-level entry in an
% index such as the operation index. Nobody seemed to notice the change in
% (At some time during the 20th century, this made a two-level entry in an
% index such as the operation index. Nobody seemed to notice the change in
% behaviour though.)
\def\dosubind#1#2#3{%
\def\thirdarg{#3}%
@ -7853,7 +7853,7 @@
\tclose{\temp}% typeset the return type
\ifrettypeownline
% put return type on its own line; prohibit line break following:
\hfil\vadjust{\nobreak}\break
\hfil\vadjust{\nobreak}\break
\else
\space % type on same line, so just followed by a space
\fi
@ -8000,7 +8000,7 @@
\scantokens{#1@comment}%
%
% The \comment is to remove the \newlinechar added by \scantokens, and
% can be noticed by \parsearg. Note \c isn't used because this means cedilla
% can be noticed by \parsearg. Note \c isn't used because this means cedilla
% in math mode.
}
@ -8201,7 +8201,7 @@
% list to some hook where the argument is to be expanded. If there are
% less than 10 arguments that hook is to be replaced by ##N where N
% is the position in that list, that is to say the macro arguments are to be
% defined `a la TeX in the macro body.
% defined `a la TeX in the macro body.
%
% That gets used by \mbodybackslash (above).
%
@ -8232,8 +8232,8 @@
%
% Read recursive and nonrecursive macro bodies. (They're different since
% rec and nonrec macros end differently.)
%
% We are in \macrobodyctxt, and the \xdef causes backslashshes in the macro
%
% We are in \macrobodyctxt, and the \xdef causes backslashshes in the macro
% body to be transformed.
% Set \macrobody to the body of the macro, and call \defmacro.
%
@ -8267,7 +8267,7 @@
% twice the \macarg.BLAH macros does not cost too much processing power.
\def\parsemmanyargdef@@#1,{%
\if#1;\let\next=\relax
\else
\else
\let\next=\parsemmanyargdef@@
\edef\tempb{\eatspaces{#1}}%
\expandafter\def\expandafter\tempa
@ -8352,7 +8352,7 @@
% Replace arguments by their values in the macro body, and place the result
% in macro \@tempa.
%
%
\def\macvalstoargs@{%
% To do this we use the property that token registers that are \the'ed
% within an \edef expand only once. So we are going to place all argument
@ -8376,9 +8376,9 @@
\expandafter\def\expandafter\@tempa\expandafter{\@tempc}%
}
% Define the named-macro outside of this group and then close this group.
%
\def\macargexpandinbody@{%
% Define the named-macro outside of this group and then close this group.
%
\def\macargexpandinbody@{%
\expandafter
\endgroup
\macargdeflist@
@ -8416,7 +8416,7 @@
}
% Trailing missing arguments are set to empty.
%
%
\def\setemptyargvalues@{%
\ifx\paramlist\nilm@
\let\next\macargexpandinbody@
@ -8493,7 +8493,7 @@
\else % at most 9
\ifnum\paramno<10\relax
% @MACNAME sets the context for reading the macro argument
% @MACNAME@@ gets the argument, processes backslashes and appends a
% @MACNAME@@ gets the argument, processes backslashes and appends a
% comma.
% @MACNAME@@@ removes braces surrounding the argument list.
% @MACNAME@@@@ scans the macro body with arguments substituted.
@ -8537,11 +8537,11 @@
% Call #1 with a list of tokens #2, with any doubled backslashes in #2
% compressed to one.
%
% This implementation works by expansion, and not execution (so we cannot use
% \def or similar). This reduces the risk of this failing in contexts where
% complete expansion is done with no execution (for example, in writing out to
% This implementation works by expansion, and not execution (so we cannot use
% \def or similar). This reduces the risk of this failing in contexts where
% complete expansion is done with no execution (for example, in writing out to
% an auxiliary file for an index entry).
%
%
% State is kept in the input stream: the argument passed to
% @look_ahead, @gobble_and_check_finish and @add_segment is
%
@ -8563,11 +8563,11 @@
% #3 - NEXT_TOKEN
% #4 used to look ahead
%
% If the next token is not a backslash, process the rest of the argument;
% If the next token is not a backslash, process the rest of the argument;
% otherwise, remove the next token.
@gdef@look_ahead#1!#2#3#4{%
@ifx#4\%
@expandafter@gobble_and_check_finish
@expandafter@gobble_and_check_finish
@else
@expandafter@add_segment
@fi#1!{#2}#4#4%
@ -8591,9 +8591,9 @@
% #3 - NEXT_TOKEN
% #4 is input stream until next backslash
%
% Input stream is either at the start of the argument, or just after a
% backslash sequence, either a lone backslash, or a doubled backslash.
% NEXT_TOKEN contains the first token in the input stream: if it is \finish,
% Input stream is either at the start of the argument, or just after a
% backslash sequence, either a lone backslash, or a doubled backslash.
% NEXT_TOKEN contains the first token in the input stream: if it is \finish,
% finish; otherwise, append to ARG_RESULT the segment of the argument up until
% the next backslash. PENDING_BACKSLASH contains a backslash to represent
% a backslash just before the start of the input stream that has not been
@ -8605,13 +8605,13 @@
% append the pending backslash to the result, followed by the next segment
@expandafter@is_fi@look_ahead#1#2#4!{\}@fi
% this @fi is discarded by @look_ahead.
% we can't get rid of it with \expandafter because we don't know how
% we can't get rid of it with \expandafter because we don't know how
% long #4 is.
}
% #1 - THE_MACRO
% #2 - ARG_RESULT
% #3 discards the res of the conditional in @add_segment, and @is_fi ends the
% #3 discards the res of the conditional in @add_segment, and @is_fi ends the
% conditional.
@gdef@call_the_macro#1#2!#3@fi{@is_fi #1{#2}}
@ -8623,7 +8623,7 @@
% for reading the argument (slightly different in the two cases). Then,
% to read the argument, in the whole-line case, it then calls the regular
% \parsearg MAC; in the lbrace case, it calls \passargtomacro MAC.
%
%
\def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx}
\def\braceorlinexxx{%
\ifx\nchar\bgroup
@ -8677,7 +8677,7 @@
% Used so that the @top node doesn't have to be wrapped in an @ifnottex
% conditional.
% \doignore goes to more effort to skip nested conditionals but we don't need
% \doignore goes to more effort to skip nested conditionals but we don't need
% that here.
\def\omittopnode{%
\ifx\lastnode\wordTop
@ -8685,7 +8685,7 @@
}
\def\wordTop{Top}
% Until the next @node or @bye command, divert output to a box that is not
% Until the next @node or @bye command, divert output to a box that is not
% output.
\def\ignorenode{\setbox\dummybox\vbox\bgroup\def\node{\egroup\node}%
\ignorenodebye
@ -8752,7 +8752,7 @@
% automatically in xrefs, if the third arg is not explicitly specified.
% This was provided as a "secret" @set xref-automatic-section-title
% variable, now it's official.
%
%
\parseargdef\xrefautomaticsectiontitle{%
\def\temp{#1}%
\ifx\temp\onword
@ -8768,7 +8768,7 @@
\fi\fi
}
%
%
% @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
% the node name, #2 the name of the Info cross-reference, #3 the printed
% node name, #4 the name of the Info file, #5 the name of the printed
@ -8921,24 +8921,24 @@
\fi
\else
% node/anchor (non-float) references.
%
%
% If we use \unhbox to print the node names, TeX does not insert
% empty discretionaries after hyphens, which means that it will not
% find a line break at a hyphen in a node names. Since some manuals
% are best written with fairly long node names, containing hyphens,
% this is a loss. Therefore, we give the text of the node name
% again, so it is as if TeX is seeing it for the first time.
%
%
\ifdim \wd\printedmanualbox > 0pt
% Cross-manual reference with a printed manual name.
%
%
\crossmanualxref{\cite{\printedmanual\unskip}}%
%
\else\ifdim \wd\infofilenamebox > 0pt
% Cross-manual reference with only an info filename (arg 4), no
% printed manual name (arg 5). This is essentially the same as
% the case above; we output the filename, since we have nothing else.
%
%
\crossmanualxref{\code{\infofilename\unskip}}%
%
\else
@ -8978,20 +8978,20 @@
\endgroup}
% Output a cross-manual xref to #1. Used just above (twice).
%
%
% Only include the text "Section ``foo'' in" if the foo is neither
% missing or Top. Thus, @xref{,,,foo,The Foo Manual} outputs simply
% "see The Foo Manual", the idea being to refer to the whole manual.
%
%
% But, this being TeX, we can't easily compare our node name against the
% string "Top" while ignoring the possible spaces before and after in
% the input. By adding the arbitrary 7sp below, we make it much less
% likely that a real node name would have the same width as "Top" (e.g.,
% in a monospaced font). Hopefully it will never happen in practice.
%
%
% For the same basic reason, we retypeset the "Top" at every
% reference, since the current font is indeterminate.
%
%
\def\crossmanualxref#1{%
\setbox\toprefbox = \hbox{Top\kern7sp}%
\setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}%
@ -9038,7 +9038,7 @@
\fi\fi\fi
}
% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME. SUFFIX
% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME. SUFFIX
% is output afterwards if non-empty.
\def\refx#1#2{%
\requireauxfile
@ -9070,9 +9070,9 @@
#2% Output the suffix in any case.
}
% This is the macro invoked by entries in the aux file. Define a control
% sequence for a cross-reference target (we prepend XR to the control sequence
% name to avoid collisions). The value is the page number. If this is a float
% This is the macro invoked by entries in the aux file. Define a control
% sequence for a cross-reference target (we prepend XR to the control sequence
% name to avoid collisions). The value is the page number. If this is a float
% type, we have more work to do.
%
\def\xrdef#1#2{%
@ -9088,10 +9088,10 @@
\bgroup
\expandafter\gdef\csname XR\safexrefname\endcsname{#2}%
\egroup
% We put the \gdef inside a group to avoid the definitions building up on
% TeX's save stack, which can cause it to run out of space for aux files with
% We put the \gdef inside a group to avoid the definitions building up on
% TeX's save stack, which can cause it to run out of space for aux files with
% thousands of lines. \gdef doesn't use the save stack, but \csname does
% when it defines an unknown control sequence as \relax.
% when it defines an unknown control sequence as \relax.
%
% Was that xref control sequence that we just defined for a float?
\expandafter\iffloat\csname XR\safexrefname\endcsname
@ -9450,7 +9450,7 @@
%
\ifimagevmode
\medskip % space after a standalone image
\fi
\fi
\ifx\centersub\centerV \egroup \fi
\endgroup}
@ -10281,7 +10281,7 @@
\uppercase{.}
\endgroup
\else
\errhelp = \EMsimple
\errhelp = \EMsimple
\errmessage{Unicode character U+#1 not supported, sorry}%
\fi
\else
@ -10314,7 +10314,7 @@
\countUTFz = "#1\relax
\begingroup
\parseXMLCharref
% Give \u8:... its definition. The sequence of seven \expandafter's
% expands after the \gdef three times, e.g.
%
@ -10326,7 +10326,7 @@
\expandafter\expandafter
\expandafter\expandafter
\expandafter\gdef \UTFviiiTmp{#2}%
%
%
\expandafter\ifx\csname uni:#1\endcsname \relax \else
\message{Internal error, already defined: #1}%
\fi
@ -10365,7 +10365,7 @@
\divide\countUTFz by 64
\countUTFy = \countUTFz % Save to be the future value of \countUTFz.
\multiply\countUTFz by 64
% \countUTFz is now \countUTFx with the last 5 bits cleared. Subtract
% in order to get the last five bits.
\advance\countUTFx by -\countUTFz
@ -10400,7 +10400,7 @@
% U+0080..U+00FF = https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)
% U+0100..U+017F = https://en.wikipedia.org/wiki/Latin_Extended-A
% U+0180..U+024F = https://en.wikipedia.org/wiki/Latin_Extended-B
%
%
% Many of our renditions are less than wonderful, and all the missing
% characters are available somewhere. Loading the necessary fonts
% awaits user request. We can't truly support Unicode without
@ -11438,9 +11438,9 @@
\def\texinfochars{%
\let< = \activeless
\let> = \activegtr
\let~ = \activetilde
\let~ = \activetilde
\let^ = \activehat
\markupsetuplqdefault \markupsetuprqdefault
\markupsetuplqdefault \markupsetuprqdefault
\let\b = \strong
\let\i = \smartitalic
% in principle, all other definitions in \tex have to be undone too.

91
lib/intprops.h
View File

@ -22,6 +22,18 @@
#include <limits.h>
/* If the compiler lacks __has_builtin, define it well enough for this
source file only. */
#ifndef __has_builtin
# define __has_builtin(x) _GL_HAS_##x
# if 5 <= __GNUC__ && !defined __ICC
# define _GL_HAS___builtin_add_overflow 1
# else
# define _GL_HAS___builtin_add_overflow 0
# endif
# define _GL_TEMPDEF___has_builtin
#endif
/* Return a value with the common real type of E and V and the value of V.
Do not evaluate E. */
#define _GL_INT_CONVERT(e, v) ((1 ? 0 : (e)) + (v))
@ -220,14 +232,24 @@
? (a) < (min) >> (b) \
: (max) >> (b) < (a))
/* True if __builtin_add_overflow (A, B, P) works when P is non-null. */
#if 5 <= __GNUC__ && !defined __ICC
# define _GL_HAS_BUILTIN_OVERFLOW 1
/* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow
(A, B, P) work when P is non-null. */
#if __has_builtin (__builtin_add_overflow)
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 1
#else
# define _GL_HAS_BUILTIN_OVERFLOW 0
# define _GL_HAS_BUILTIN_ADD_OVERFLOW 0
#endif
/* True if __builtin_add_overflow_p (A, B, C) works. */
/* True if __builtin_mul_overflow (A, B, P) works when P is non-null. */
#ifdef __clang__
/* Work around Clang bug <https://bugs.llvm.org/show_bug.cgi?id=16404>. */
# define _GL_HAS_BUILTIN_MUL_OVERFLOW 0
#else
# define _GL_HAS_BUILTIN_MUL_OVERFLOW _GL_HAS_BUILTIN_ADD_OVERFLOW
#endif
/* True if __builtin_add_overflow_p (A, B, C) works, and similarly for
__builtin_mul_overflow_p and __builtin_mul_overflow_p. */
#define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)
/* The _GL*_OVERFLOW macros have the same restrictions as the
@ -351,29 +373,33 @@
/* Store the low-order bits of A + B, A - B, A * B, respectively, into *R.
Return 1 if the result overflows. See above for restrictions. */
#define INT_ADD_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, +, __builtin_add_overflow, \
_GL_INT_ADD_RANGE_OVERFLOW)
#define INT_SUBTRACT_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, -, __builtin_sub_overflow, \
_GL_INT_SUBTRACT_RANGE_OVERFLOW)
#define INT_MULTIPLY_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, *, _GL_BUILTIN_MUL_OVERFLOW, \
_GL_INT_MULTIPLY_RANGE_OVERFLOW)
/* Like __builtin_mul_overflow, but work around GCC bug 91450. */
#define _GL_BUILTIN_MUL_OVERFLOW(a, b, r) \
((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \
&& _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
? ((void) __builtin_mul_overflow (a, b, r), 1) \
: __builtin_mul_overflow (a, b, r))
#if _GL_HAS_BUILTIN_ADD_OVERFLOW
# define INT_ADD_WRAPV(a, b, r) __builtin_add_overflow (a, b, r)
# define INT_SUBTRACT_WRAPV(a, b, r) __builtin_sub_overflow (a, b, r)
#else
# define INT_ADD_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, +, _GL_INT_ADD_RANGE_OVERFLOW)
# define INT_SUBTRACT_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW)
#endif
#if _GL_HAS_BUILTIN_MUL_OVERFLOW
/* Work around GCC bug 91450. */
# define INT_MULTIPLY_WRAPV(a, b, r) \
((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \
&& _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \
? ((void) __builtin_mul_overflow (a, b, r), 1) \
: __builtin_mul_overflow (a, b, r))
#else
# define INT_MULTIPLY_WRAPV(a, b, r) \
_GL_INT_OP_WRAPV (a, b, r, *, _GL_INT_MULTIPLY_RANGE_OVERFLOW)
#endif
/* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193
https://llvm.org/bugs/show_bug.cgi?id=25390
For now, assume all versions of GCC-like compilers generate bogus
warnings for _Generic. This matters only for older compilers that
lack __builtin_add_overflow. */
warnings for _Generic. This matters only for compilers that
lack relevant builtins. */
#if __GNUC__
# define _GL__GENERIC_BOGUS 1
#else
@ -381,13 +407,10 @@
#endif
/* Store the low-order bits of A <op> B into *R, where OP specifies
the operation. BUILTIN is the builtin operation, and OVERFLOW the
overflow predicate. Return 1 if the result overflows. See above
for restrictions. */
#if _GL_HAS_BUILTIN_OVERFLOW
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r)
#elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
the operation and OVERFLOW the overflow predicate. Return 1 if the
result overflows. See above for restrictions. */
#if 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
(_Generic \
(*(r), \
signed char: \
@ -442,7 +465,7 @@
: (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 0)))
# endif
# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \
# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \
(sizeof *(r) == sizeof (signed char) \
? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \
signed char, SCHAR_MIN, SCHAR_MAX, \
@ -563,4 +586,10 @@
: (tmin) / (a) < (b)) \
: (tmax) / (b) < (a)))
#ifdef _GL_TEMPDEF___has_builtin
# undef __has_builtin
# undef _GL_HAS___builtin_add_overflow
# undef _GL_TEMPDEF___has_builtin
#endif
#endif /* _GL_INTPROPS_H */

11
lib/regex_internal.c
View File

@ -1311,7 +1311,6 @@ re_node_set_insert (re_node_set *set, Idx elem)
first element separately to skip a check in the inner loop. */
if (elem < set->elems[0])
{
idx = 0;
for (idx = set->nelem; idx > 0; idx--)
set->elems[idx] = set->elems[idx - 1];
}
@ -1716,15 +1715,19 @@ create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes,
{
if (newstate->entrance_nodes == &newstate->nodes)
{
newstate->entrance_nodes = re_malloc (re_node_set, 1);
if (__glibc_unlikely (newstate->entrance_nodes == NULL))
re_node_set *entrance_nodes = re_malloc (re_node_set, 1);
if (__glibc_unlikely (entrance_nodes == NULL))
{
free_state (newstate);
return NULL;
}
newstate->entrance_nodes = entrance_nodes;
if (re_node_set_init_copy (newstate->entrance_nodes, nodes)
!= REG_NOERROR)
return NULL;
{
free_state (newstate);
return NULL;
}
nctx_nodes = 0;
newstate->has_constraint = 1;
}

28
lib/verify.h
View File

@ -56,6 +56,16 @@
# undef _Static_assert
#endif
/* If the compiler lacks __has_builtin, define it well enough for this
source file only. */
#ifndef __has_builtin
# define __has_builtin(x) _GL_HAS_##x
# define _GL_HAS___builtin_unreachable (4 < __GNUC__ + (5 <= __GNUC_MINOR__))
# define _GL_HAS___builtin_trap \
(3 < __GNUC__ + (3 < __GNUC_MINOR__ + (4 <= __GNUC_PATCHLEVEL__)))
# define _GL_TEMPDEF___has_builtin
#endif
/* Each of these macros verifies that its argument R is nonzero. To
be portable, R should be an integer constant expression. Unlike
assert (R), there is no run-time overhead.
@ -260,24 +270,17 @@ template <int w>
# define verify(R) _GL_VERIFY (R, "verify (" #R ")", -)
#endif
#ifndef __has_builtin
# define __has_builtin(x) 0
#endif
/* Assume that R always holds. Behavior is undefined if R is false,
fails to evaluate, or has side effects. Although assuming R can
help a compiler generate better code or diagnostics, performance
can suffer if R uses hard-to-optimize features such as function
calls not inlined by the compiler. */
#if (__has_builtin (__builtin_unreachable) \
|| 4 < __GNUC__ + (5 <= __GNUC_MINOR__))
#if __has_builtin (__builtin_unreachable)
# define assume(R) ((R) ? (void) 0 : __builtin_unreachable ())
#elif 1200 <= _MSC_VER
# define assume(R) __assume (R)
#elif ((defined GCC_LINT || defined lint) \
&& (__has_builtin (__builtin_trap) \
|| 3 < __GNUC__ + (3 < __GNUC_MINOR__ + (4 <= __GNUC_PATCHLEVEL__))))
#elif (defined GCC_LINT || defined lint) && __has_builtin (__builtin_trap)
/* Doing it this way helps various packages when configured with
--enable-gcc-warnings, which compiles with -Dlint. It's nicer
when 'assume' silences warnings even with older GCCs. */
@ -287,6 +290,13 @@ template <int w>
# define assume(R) ((R) ? (void) 0 : /*NOTREACHED*/ (void) 0)
#endif
#ifdef _GL_TEMPDEF___has_builtin
# undef __has_builtin
# undef _GL_HAS___builtin_unreachable
# undef _GL_HAS___builtin_trap
# undef _GL_TEMPDEF___has_builtin
#endif
/* @assert.h omit end@ */
#endif