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* doc/refcard.tex: Update.

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This commit is contained in:
Akim Demaille
2001-11-02 17:18:52 +00:00
parent 239e5c1a9a
commit 57c429f305
7 changed files with 204 additions and 132 deletions
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4
ChangeLog
View File

@@ -1,3 +1,7 @@
2001-11-02 Akim Demaille <akim@epita.fr>
* doc/refcard.tex: Update.
2001-11-02 Akim Demaille <akim@epita.fr>
* src/symtab.h (SUNDEF): New.

17
Makefile.in
View File

@@ -137,9 +137,9 @@ RECURSIVE_TARGETS = info-recursive dvi-recursive install-info-recursive \
uninstall-info-recursive all-recursive install-data-recursive \
install-exec-recursive installdirs-recursive install-recursive \
uninstall-recursive check-recursive installcheck-recursive
DIST_COMMON = README ABOUT-NLS AUTHORS COPYING ChangeLog INSTALL \
Makefile.am Makefile.in NEWS README-alpha THANKS aclocal.m4 \
config.hin configure configure.in
DIST_COMMON = README ./stamp-h1.in ABOUT-NLS AUTHORS COPYING ChangeLog \
INSTALL Makefile.am Makefile.in NEWS README-alpha THANKS \
aclocal.m4 config.hin configure configure.in
DIST_SUBDIRS = $(SUBDIRS)
all: config.h
$(MAKE) $(AM_MAKEFLAGS) all-recursive
@@ -168,10 +168,17 @@ config.h: stamp-h1
stamp-h1: $(srcdir)/config.hin $(top_builddir)/config.status
@rm -f stamp-h1
cd $(top_builddir) && $(SHELL) ./config.status config.h
$(srcdir)/config.hin: $(srcdir)/./stamp-h1.in
@if test ! -f $@; then \
rm -f $(srcdir)/./stamp-h1.in; \
$(MAKE) $(srcdir)/./stamp-h1.in; \
else :; fi
$(srcdir)/config.hin: $(top_srcdir)/configure.in $(ACLOCAL_M4)
$(srcdir)/./stamp-h1.in: $(top_srcdir)/configure.in $(ACLOCAL_M4)
@rm -f $(srcdir)/./stamp-h1.in $(srcdir)/./stamp-h1.inT
@echo timestamp > $(srcdir)/./stamp-h1.inT 2> /dev/null
cd $(top_srcdir) && $(AUTOHEADER)
touch $(srcdir)/config.hin
@mv $(srcdir)/./stamp-h1.inT $(srcdir)/./stamp-h1.in
distclean-hdr:
-rm -f config.h

2
NEWS
View File

@@ -9,6 +9,8 @@ Changes in version 1.30a:
* %token MY_EOF 0 is supported.
Before, MY_EOF was silently renumbered as 257.
* doc/refcard.tex is updated.
Changes in version 1.30:

2
aclocal.m4 vendored
View File

@@ -1,4 +1,4 @@
# aclocal.m4 generated automatically by aclocal 1.5a -*- Autoconf -*-
# aclocal.m4t generated automatically by aclocal 1.5a -*- Autoconf -*-
# Copyright 1996, 1997, 1998, 1999, 2000, 2001
# Free Software Foundation, Inc.

221
configure vendored
View File

@@ -27,6 +27,39 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
set -o posix
fi
# NLS nuisances.
# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
as_unset=unset
else
as_unset=false
fi
(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
{ $as_unset LANG || test "${LANG+set}" != set; } ||
{ LANG=C; export LANG; }
(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
{ $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
{ LC_ALL=C; export LC_ALL; }
(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
{ $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
{ LC_TIME=C; export LC_TIME; }
(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
{ $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
{ LC_CTYPE=C; export LC_CTYPE; }
(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
{ $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
{ LANGUAGE=C; export LANGUAGE; }
(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
{ $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
{ LC_COLLATE=C; export LC_COLLATE; }
(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
{ $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
{ LC_NUMERIC=C; export LC_NUMERIC; }
(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
{ $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
{ LC_MESSAGES=C; export LC_MESSAGES; }
# Name of the executable.
as_me=`(basename "$0") 2>/dev/null ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
@@ -39,7 +72,14 @@ echo X/"$0" |
/^X\/\(\/\).*/{ s//\1/; q; }
s/.*/./; q'`
# Rewrite early, but we need PATH_SEPARATOR.
# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
echo "#! $SHELL" >conftest.sh
@@ -53,13 +93,11 @@ if test "${PATH_SEPARATOR+set}" != set; then
rm -f conftest.sh
fi
{
as_lineno_1=$LINENO
as_lineno_2=$LINENO
as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
test "x$as_lineno_1" != "x$as_lineno_2" &&
test "x$as_lineno_3" = "x$as_lineno_2"
} || {
test "x$as_lineno_3" = "x$as_lineno_2" || {
# Find who we are. Look in the path if we contain no path at all
# relative or not.
case $0 in
@@ -93,13 +131,12 @@ do
for as_base in sh bash ksh sh5; do
case $as_dir in
/*)
if ("$as_dir/$as_base" -c '{
if ("$as_dir/$as_base" -c '
as_lineno_1=$LINENO
as_lineno_2=$LINENO
as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
test "x$as_lineno_1" != "x$as_lineno_2" &&
test "x$as_lineno_3" = "x$as_lineno_2"
}') 2>/dev/null; then
test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
CONFIG_SHELL=$as_dir/$as_base
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$0" ${1+"$@"}
@@ -109,19 +146,28 @@ do
done
;;
esac
if test ! -f "$as_me.lineno" ||
test x`ls -1dt "$as_me.lineno" "$as_myself" 2>/dev/null | sed 1q` \
!= x"$as_me.lineno"; then
# Be sure to write the pattern so that it doesn't replace itself:
# it must not match itself.
awk <$as_myself '
/[$]LINENO/ { printf "%d:", NR }
{ print }
' |
sed '/[$]LINENO/s/^\([0-9][0-9]*\):\(.*\)[$]LINENO/\2\1/' \
>$as_me.lineno
chmod +x $as_me.lineno
fi
# Create $as_me.lineno as a copy of $as_myself, but with $LINENO
# uniformly replaced by the line number. The first 'sed' inserts a
# line-number line before each line; the second 'sed' does the real
# work. The second script uses 'N' to pair each line-number line
# with the numbered line, and appends trailing '-' during
# substitution so that $LINENO is not a special case at line end.
# (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
# second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
sed '=' <$as_myself |
sed '
N
s,$,-,
: loop
s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
t loop
s,-$,,
s,^['$as_cr_digits']*\n,,
' >$as_me.lineno &&
chmod +x $as_me.lineno ||
{ echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
{ (exit 1); exit 1; }; }
# Don't try to exec as it changes $[0], causing all sort of problems
# (the dirname of $[0] is not the place where we might find the
@@ -131,13 +177,6 @@ done
exit
}
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits
case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
*c*,-n*) ECHO_N= ECHO_C='
' ECHO_T=' ' ;;
@@ -177,23 +216,6 @@ as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
# Sed expression to map a string onto a valid variable name.
as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
as_unset=unset
else
as_unset=false
fi
# NLS nuisances.
$as_unset LANG || test "${LANG+set}" != set || { LANG=C; export LANG; }
$as_unset LC_ALL || test "${LC_ALL+set}" != set || { LC_ALL=C; export LC_ALL; }
$as_unset LC_TIME || test "${LC_TIME+set}" != set || { LC_TIME=C; export LC_TIME; }
$as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set || { LC_CTYPE=C; export LC_CTYPE; }
$as_unset LANGUAGE || test "${LANGUAGE+set}" != set || { LANGUAGE=C; export LANGUAGE; }
$as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set || { LC_COLLATE=C; export LC_COLLATE; }
$as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set || { LC_NUMERIC=C; export LC_NUMERIC; }
$as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set || { LC_MESSAGES=C; export LC_MESSAGES; }
# IFS
# We need space, tab and new line, in precisely that order.
as_nl='
@@ -8530,6 +8552,39 @@ elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
set -o posix
fi
# NLS nuisances.
# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
as_unset=unset
else
as_unset=false
fi
(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
{ $as_unset LANG || test "${LANG+set}" != set; } ||
{ LANG=C; export LANG; }
(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
{ $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
{ LC_ALL=C; export LC_ALL; }
(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
{ $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
{ LC_TIME=C; export LC_TIME; }
(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
{ $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
{ LC_CTYPE=C; export LC_CTYPE; }
(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
{ $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
{ LANGUAGE=C; export LANGUAGE; }
(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
{ $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
{ LC_COLLATE=C; export LC_COLLATE; }
(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
{ $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
{ LC_NUMERIC=C; export LC_NUMERIC; }
(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
{ $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
{ LC_MESSAGES=C; export LC_MESSAGES; }
# Name of the executable.
as_me=`(basename "$0") 2>/dev/null ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
@@ -8542,7 +8597,14 @@ echo X/"$0" |
/^X\/\(\/\).*/{ s//\1/; q; }
s/.*/./; q'`
# Rewrite early, but we need PATH_SEPARATOR.
# PATH needs CR, and LINENO needs CR and PATH.
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
echo "#! $SHELL" >conftest.sh
@@ -8556,13 +8618,11 @@ if test "${PATH_SEPARATOR+set}" != set; then
rm -f conftest.sh
fi
{
as_lineno_1=$LINENO
as_lineno_2=$LINENO
as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
test "x$as_lineno_1" != "x$as_lineno_2" &&
test "x$as_lineno_3" = "x$as_lineno_2"
} || {
test "x$as_lineno_3" = "x$as_lineno_2" || {
# Find who we are. Look in the path if we contain no path at all
# relative or not.
case $0 in
@@ -8597,13 +8657,12 @@ do
for as_base in sh bash ksh sh5; do
case $as_dir in
/*)
if ("$as_dir/$as_base" -c '{
if ("$as_dir/$as_base" -c '
as_lineno_1=$LINENO
as_lineno_2=$LINENO
as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
test "x$as_lineno_1" != "x$as_lineno_2" &&
test "x$as_lineno_3" = "x$as_lineno_2"
}') 2>/dev/null; then
test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
CONFIG_SHELL=$as_dir/$as_base
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$0" ${1+"$@"}
@@ -8613,19 +8672,29 @@ do
done
;;
esac
if test ! -f "$as_me.lineno" ||
test x`ls -1dt "$as_me.lineno" "$as_myself" 2>/dev/null | sed 1q` \
!= x"$as_me.lineno"; then
# Be sure to write the pattern so that it doesn't replace itself:
# it must not match itself.
awk <$as_myself '
/[$]LINENO/ { printf "%d:", NR }
{ print }
' |
sed '/[$]LINENO/s/^\([0-9][0-9]*\):\(.*\)[$]LINENO/\2\1/' \
>$as_me.lineno
chmod +x $as_me.lineno
fi
# Create $as_me.lineno as a copy of $as_myself, but with $LINENO
# uniformly replaced by the line number. The first 'sed' inserts a
# line-number line before each line; the second 'sed' does the real
# work. The second script uses 'N' to pair each line-number line
# with the numbered line, and appends trailing '-' during
# substitution so that $LINENO is not a special case at line end.
# (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
# second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
sed '=' <$as_myself |
sed '
N
s,$,-,
: loop
s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
t loop
s,-$,,
s,^['$as_cr_digits']*\n,,
' >$as_me.lineno &&
chmod +x $as_me.lineno ||
{ { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
{ (exit 1); exit 1; }; }
# Don't try to exec as it changes $[0], causing all sort of problems
# (the dirname of $[0] is not the place where we might find the
@@ -8635,13 +8704,6 @@ done
exit
}
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits
case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
*c*,-n*) ECHO_N= ECHO_C='
' ECHO_T=' ' ;;
@@ -8681,23 +8743,6 @@ as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
# Sed expression to map a string onto a valid variable name.
as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
# Support unset when possible.
if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
as_unset=unset
else
as_unset=false
fi
# NLS nuisances.
$as_unset LANG || test "${LANG+set}" != set || { LANG=C; export LANG; }
$as_unset LC_ALL || test "${LC_ALL+set}" != set || { LC_ALL=C; export LC_ALL; }
$as_unset LC_TIME || test "${LC_TIME+set}" != set || { LC_TIME=C; export LC_TIME; }
$as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set || { LC_CTYPE=C; export LC_CTYPE; }
$as_unset LANGUAGE || test "${LANGUAGE+set}" != set || { LANGUAGE=C; export LANGUAGE; }
$as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set || { LC_COLLATE=C; export LC_COLLATE; }
$as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set || { LC_NUMERIC=C; export LC_NUMERIC; }
$as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set || { LC_MESSAGES=C; export LC_MESSAGES; }
# IFS
# We need space, tab and new line, in precisely that order.
as_nl='

82
doc/refcard.tex
View File

@@ -6,7 +6,7 @@
% This file can be printed with 1 or 2 columns per page (see below).
% Specify how many you want here. Nothing else needs to be changed
% unless you are maintaining the documentation.
% For printing reference cards to use in books, specify one column
% For printing reference cards to use in books, specify one column
% per page and reduce to 80%.
% Note that if columnsperpage is set to 2, there will be a few overfull
% boxes, but they are not serious. Just uncomment \finalout.
@@ -19,7 +19,7 @@
\def\finalout{\overfullrule=0pt}
%\finalout
% Copyright (c) 1998 Free Software Foundation, Inc.
% Copyright (c) 1998, 2001 Free Software Foundation, Inc.
%
% This file is part of Bison.
%
@@ -51,11 +51,11 @@
% Which mode to use is controlled by setting \columnsperpage above.
%
% Authors:
% Brendan Kehoe
% Brendan Kehoe
% UUCP: widener!brendan
% Internet: brendan@cs.widener.edu
% Internet: brendan@cs.widener.edu
%
% Gavin Nicol
% Gavin Nicol
% Internet: nick@nsis.cl.co.jp
%
% This refcard format was created by Steve Gildea.
@@ -66,12 +66,12 @@
% We only change the following to change the version numbers and
% such.
\def\bisonversion{1.20} % the bison version
\def\bisonversion{1.31} % the bison version
\def\refcardversion{0.4a} % reference card version
\def\month{August} % month
\def\year{1998} % year
\def\version{\month\ \year, Bison Refcard Version \refcardversion}
\def\refcardversion{0.5} % reference card version
\def\month{November} % month
\def\year{2001} % year
\def\version{\month\ \year, Bison Refcard Version \refcardversion}
% for copyright notices
\def\small{\smallfont\textfont2=\smallsy\baselineskip=.8\baselineskip}
@@ -90,7 +90,7 @@
Permission is granted to make and distribute copies of this card
provided the copyright notice and this permission notice
are preserved on all copies.
are preserved on all copies.
\vskip .2\baselineskip
For information, write to the:
\vskip .2\baselineskip
@@ -115,7 +115,7 @@ For information, write to the:
Permission is granted to make and distribute copies of this card
provided the copyright notice and this permission notice
are preserved on all copies.
are preserved on all copies.
\vskip .2\baselineskip
For information, write to the:
\vskip .2\baselineskip
@@ -136,7 +136,7 @@ For information, write to the:
\def\ncolumns{\the\columnsperpage}
\message{[\ncolumns\space
\message{[\ncolumns\space
column\if 1\ncolumns\else s\fi\space per page]}
\def\scaledmag#1{ scaled \magstep #1}
@@ -227,7 +227,7 @@ For information, write to the:
\def\bye{\par\vfill\supereject
\if a\abc \else\null\vfill\eject\fi
\if a\abc \else\null\vfill\eject\fi
\end}
\end}
\fi
% we won't be using math mode much, so redefine some of the characters
@@ -316,41 +316,44 @@ Options can be used as: \kbd{bison {\it options} {\it filename}}
\section{Command Line Options}
%*****************************
\key{Display usage information.} {-h}
\key{Display version information.} {-V}
\key{Generate token and {\tt YYSTYPE} definitions.} {-d}
\key{Prepend a prefix to external symbols.} {-p {\it prefix}}
\key{Don't put {\tt \#line} directives in the parser.} {-l}
\key{Specify the output file.} {-o {\it filename}}
\key{Debug or {\it trace} mode.} {-t}
\key{Debug or {\it trace} mode.} {-t}
\key{Verbose description of the parser.} {-v}
\key{Emulate {\tt yacc} (generate {\tt y.tab.*} files).} {-y}
\vskip .10truein
{\bf Note:} The token and {\tt YYSTYPE} definitions are generated
to a file called {\tt y.tab.h} if the {\tt -y} option is used,
{\bf Note:} The token and {\tt YYSTYPE} definitions are generated
to a file called {\tt y.tab.h} if the {\tt -y} option is used,
otherwise it will have the format {\tt {\it name}.tab.h}, where
{\it name} is the leading part of the parser definition filename.
\section{Definitions}
%********************
\key{Declare a terminal symbol.}{\%token <{\it t\/}>
\key{Declare a terminal symbol.}{\%token <{\it t\/}>
{\it n}}
\key{Declare a terminal symbol, and define its association.}
\key{Declare a terminal symbol, and define its association.}
{{\it association} <{\it t\/}> {\it n}}
\vskip .2\baselineskip
\key{Generate a reentrant (pure) parser.}
\key{Generate a reentrant (pure) parser.}
{\%pure_parser}
\key{Define the union of all data types used in the parser.}
\key{Define the union of all data types used in the parser.}
{\%union\{{\it field list}\} }
\vskip .2\baselineskip
\key{Tell {\tt bison} where to start parsing.}
{\%start {\it m}}
\key{Tell {\tt bison} where to start parsing.}
{\%start {\it m}}
\key{Tell {\tt bison} the data type of symbols.}
{\%type <{\it t\/}> {\it s1}\dots{\it sn}}
\key{Tell {\tt bison} the data type of symbols.}
{\%type <{\it t\/}> {\it s1}\dots{\it sn}}
\vskip .10truein
@@ -362,8 +365,8 @@ definition, {\it n} is a {\it terminal} symbol name, {\it m} is a
\vskip .10truein
The {\tt <{\it t\/}>} after {\tt \%token, \%left, \%right} and {\tt
\%nonassoc} is optional. Additionally, precedence may be overridden with
embedded {\tt \%prec} commands.
\%nonassoc} is optional. Additionally, precedence may be overridden
in the rules with {\tt \%prec} commands.
\section{Parser Definition Files}
%*********************************
@@ -379,7 +382,7 @@ The general form for a parser definition is:
\%\%
Rule definition 1
Rule definition 1
\vdots
Rule definition {\it n}
@@ -397,8 +400,9 @@ The general form for a parser definition is:
Rules take the form:
\vskip -\baselineskip
\beginexample
non-terminal : {\it statement} 1
non-terminal : {\it statement} 1
| {\it statement} 2
\vdots
| {\it statement n}
@@ -406,12 +410,12 @@ Rules take the form:
\endexample
Where {\it statements} can be either empty, or contain
a mixture of C code (enclosed in {\tt \{...\}}), and the
a mixture of C code (enclosed in {\tt \{...\}}), and the
symbols that make up the non-terminal. For example:
\vskip -\baselineskip
\beginexample
expression : number '$+$' number \{ \$\$ $=$ \$1 $+$ \$3 \}
expression : number '$+$' number \{ \$\$ $=$ \$1 $+$ \$3 \}
| number '$-$' number \{ \$\$ $=$ \$1 $-$ \$3 \}
| number '$/$' number \{ \$\$ $=$ \$1 $/$ \$3 \}
| number '$*$' number \{ \$\$ $=$ \$1 $*$ \$3 \}
@@ -428,7 +432,7 @@ For altering the precedence of a symbol use:
For example:
\vskip -\baselineskip
\beginexample
foo : gnu bar gnu \%prec bar
foo : gnu bar gnu \%prec bar
;
\endexample
@@ -438,16 +442,18 @@ For example:
\key{Recognize an error \& continue parsing.}{error}
\key{Access data associated with a symbol.} {\$\$, \$0\dots\${\it n}}
\key{Access a field of the data union.} {\$\$.{\it t},
\$0.{\it t}\dots\${\it n}.{\it t}}
\key{Access data's line position.} {@{\it n}.{\it line\_spec}}
\key{Access data's column position.} {@{\it n}.{\it column\_spec}}
\$0.{\it t}\dots\${\it n}.{\it t}}
\key{Access symbol's location.} {@\$, @0\dots@{\it n}}
\key{Access data's line location.} {@{\it x}.{\it line\_spec}}
\key{Access data's column location.} {@{\it x}.{\it column\_spec}}
\vskip .10truein
%
Where {\it t} is a type defined in the {\tt \%union}, {\it n} is a
number, {\it line\_spec} one of {\tt first_line} and {\tt last_line},
and {\it column\_spec} is specified as either {\tt first_column} or {\tt
last_column}.
number, {\it x} is a number or \$, {\it line\_spec} one of {\tt
first_line} and {\tt last_line}, and {\it column\_spec} is specified
as either {\tt first_column} or {\tt last_column}.
\section {Variables and Types}
%*****************************

8
po/ChangeLog
View File

@@ -1,3 +1,11 @@
2001-11-02 gettextize <bug-gnu-utils@gnu.org>
* Makefile.in.in: Upgrade to gettext-0.10.40.
2001-11-02 gettextize <bug-gnu-utils@gnu.org>
* Makefile.in.in: Upgrade to gettext-0.10.40.
2001-10-10 gettextize <bug-gnu-utils@gnu.org>
* Makefile.in.in: Upgrade to gettext-0.10.40.