• x=$(cat <<-EOF
EOF) # works again now, plugging a regression • rewrite the here document parsing code to be *much* more efficient (and a bit more readable too!) using goto, while here (no kidding)
This commit is contained in:
tg
parent
5f8075fc82
commit
6894618bb9
184
check.t
184
check.t
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@ -1,4 +1,4 @@
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# $MirOS: src/bin/mksh/check.t,v 1.416 2011/03/06 17:08:10 tg Exp $
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# $MirOS: src/bin/mksh/check.t,v 1.417 2011/03/07 20:32:48 tg Exp $
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# $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
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@ -25,7 +25,7 @@
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# http://www.research.att.com/~gsf/public/ifs.sh
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expected-stdout:
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@(#)MIRBSD KSH R39 2011/03/06
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@(#)MIRBSD KSH R39 2011/03/07
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description:
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Check version of shell.
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stdin:
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@ -6971,7 +6971,7 @@ stdin:
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if [[ $line = '#1' ]]; then
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lastf=0
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continue
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elif [[ $line = EOFN ]]; then
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elif [[ $line = EOFN* ]]; then
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fbody=$fbody$'\n'$line
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continue
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elif [[ $line != '#'* ]]; then
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@ -7037,6 +7037,29 @@ stdin:
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echo 'fo\ob\"a\`r'\''b\$az'
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#OSUBST_CSUBST_OPAT_SPAT_CPAT
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[[ ${foo#blub} = @(bar|baz) ]]
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#heredoc_closed
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x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN); echo $x
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#heredoc_space
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x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN ); echo $x
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#patch_motd
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x=$(sysctl -n kern.version | sed 1q)
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[[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
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ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF)" = @(?) ]] && rm -f /etc/motd
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if [[ ! -s /etc/motd ]]; then
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install -c -o root -g wheel -m 664 /dev/null /etc/motd
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print -- "$x\n" >/etc/motd
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fi
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#0
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EOD
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expected-stdout:
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@ -7447,6 +7470,161 @@ expected-stdout:
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function reread_OSUBST_CSUBST_OPAT_SPAT_CPAT {
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x=$(( [[ ${foo#blub} = @(bar|baz) ]] ) | tr u x )
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}
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inline_heredoc_closed() {
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x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN); echo $x
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}
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inline_heredoc_closed() {
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x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN
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)
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echo $x
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}
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function comsub_heredoc_closed { x=$(
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x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN); echo $x
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); }
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function comsub_heredoc_closed {
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x=$(x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN
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) ; echo $x )
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}
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function reread_heredoc_closed { x=$((
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x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN); echo $x
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)|tr u x); }
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function reread_heredoc_closed {
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x=$(( x=$(cat <<EOFN
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note there must be no space between EOFN and )
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EOFN
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) ; echo $x ) | tr u x )
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}
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inline_heredoc_space() {
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x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN ); echo $x
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}
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inline_heredoc_space() {
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x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN
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)
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echo $x
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}
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function comsub_heredoc_space { x=$(
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x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN ); echo $x
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); }
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function comsub_heredoc_space {
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x=$(x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN
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) ; echo $x )
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}
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function reread_heredoc_space { x=$((
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x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN ); echo $x
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)|tr u x); }
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function reread_heredoc_space {
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x=$(( x=$(cat <<EOFN\
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note the space between EOFN and ) is actually part of the here document marker
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EOFN
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) ; echo $x ) | tr u x )
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}
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inline_patch_motd() {
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x=$(sysctl -n kern.version | sed 1q)
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[[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
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ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF)" = @(?) ]] && rm -f /etc/motd
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if [[ ! -s /etc/motd ]]; then
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install -c -o root -g wheel -m 664 /dev/null /etc/motd
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print -- "$x\n" >/etc/motd
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fi
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}
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inline_patch_motd() {
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x=$(sysctl -n kern.version | sed 1q )
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[[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF
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)" = @(?) ]] && rm -f /etc/motd
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if [[ ! -s /etc/motd ]]
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then
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install -c -o root -g wheel -m 664 /dev/null /etc/motd
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print -- "$x\n" >/etc/motd
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fi
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}
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function comsub_patch_motd { x=$(
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x=$(sysctl -n kern.version | sed 1q)
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[[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
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ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF)" = @(?) ]] && rm -f /etc/motd
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if [[ ! -s /etc/motd ]]; then
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install -c -o root -g wheel -m 664 /dev/null /etc/motd
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print -- "$x\n" >/etc/motd
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fi
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); }
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function comsub_patch_motd {
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x=$(x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF
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)" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi )
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}
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function reread_patch_motd { x=$((
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x=$(sysctl -n kern.version | sed 1q)
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[[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
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ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF)" = @(?) ]] && rm -f /etc/motd
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if [[ ! -s /etc/motd ]]; then
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install -c -o root -g wheel -m 664 /dev/null /etc/motd
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print -- "$x\n" >/etc/motd
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fi
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)|tr u x); }
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function reread_patch_motd {
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x=$(( x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
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1,/^\$/d
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0a
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$x
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.
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wq
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EOF
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)" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi ) | tr u x )
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}
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---
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name: test-stnze-1
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description:
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93
lex.c
93
lex.c
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@ -23,7 +23,7 @@
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.128 2011/03/07 20:30:39 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.129 2011/03/07 20:32:49 tg Exp $");
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/*
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* states while lexing word
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@ -100,6 +100,7 @@ static int dopprompt(const char *, int, bool);
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static int backslash_skip;
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static int ignore_backslash_newline;
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static int comsub_nesting_level;
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/* optimised getsc_bn() */
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#define _getsc() (*source->str != '\0' && *source->str != '\\' \
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@ -149,7 +150,7 @@ getsc_(void)
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*
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* tokens are not regular expressions, they are LL(1).
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* for example, "${var:-${PWD}}", and "$(size $(whence ksh))".
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* hence the state stack.
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* hence the state stack. Note "$(...)" are now parsed recursively.
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*/
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int
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@ -359,7 +360,9 @@ yylex(int cf)
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} else {
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ungetsc(c);
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subst_command:
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++comsub_nesting_level;
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sp = yyrecursive();
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--comsub_nesting_level;
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c2 = strlen(sp) + 1;
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XcheckN(ws, wp, c2);
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*wp++ = COMSUB;
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@ -1114,7 +1117,6 @@ readhere(struct ioword *iop)
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int c;
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char *volatile eof;
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char *eofp;
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int skiptabs;
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XString xs;
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char *xp;
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int xpos;
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@ -1135,41 +1137,66 @@ readhere(struct ioword *iop)
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Xinit(xs, xp, 256, ATEMP);
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for (;;) {
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eofp = eof;
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skiptabs = iop->flag & IOSKIP;
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xpos = Xsavepos(xs, xp);
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while ((c = getsc()) != 0) {
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if (skiptabs) {
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if (c == '\t')
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continue;
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skiptabs = 0;
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}
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if (c != *eofp)
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heredoc_read_line:
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/* beginning of line */
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eofp = eof;
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xpos = Xsavepos(xs, xp);
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if (iop->flag & IOSKIP) {
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/* skip over leading tabs */
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while ((c = getsc()) == '\t')
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/* nothing */;
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goto heredoc_parse_char;
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}
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heredoc_read_char:
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c = getsc();
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heredoc_parse_char:
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/* compare with here document marker */
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if (!*eofp) {
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/* end of here document marker, what to do? */
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switch (c) {
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case /*(*/ ')':
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if (!comsub_nesting_level)
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/* not allowed outside $(...) => mismatch */
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break;
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Xcheck(xs, xp);
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Xput(xs, xp, c);
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eofp++;
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}
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/*
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* Allow EOF here so commands with out trailing newlines
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* will work (eg, ksh -c '...', $(...), etc).
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*/
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if (*eofp == '\0' && (c == 0 || c == '\n')) {
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xp = Xrestpos(xs, xp, xpos);
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break;
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}
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ungetsc(c);
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while ((c = getsc()) != '\n') {
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if (c == 0)
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yyerror("%s '%s' unclosed\n", "here document",
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eof);
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Xcheck(xs, xp);
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Xput(xs, xp, c);
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/* Allow $(...) to close here */
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ungetsc(/*(*/ ')');
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/* FALLTHROUGH */
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case 0:
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/*
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* Allow EOF here to commands without trailing
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* newlines (mksh -c '...') will work as well.
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*/
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case '\n':
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/* Newline terminates here document marker */
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goto heredoc_found_terminator;
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}
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} else if (c == *eofp++)
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/* store; then read and compare next character */
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goto heredoc_store_and_loop;
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/* nope, mismatch; read until end of line */
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while (c != '\n') {
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if (!c)
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/* oops, reached EOF */
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yyerror("%s '%s' unclosed\n", "here document", eof);
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/* store character */
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Xcheck(xs, xp);
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Xput(xs, xp, c);
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/* read next character */
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c = getsc();
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}
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/* we read a newline as last character */
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heredoc_store_and_loop:
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/* store character */
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Xcheck(xs, xp);
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Xput(xs, xp, c);
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if (c == '\n')
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goto heredoc_read_line;
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goto heredoc_read_char;
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heredoc_found_terminator:
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/* jump back to saved beginning of line */
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xp = Xrestpos(xs, xp, xpos);
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/* terminate, close and store */
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Xput(xs, xp, '\0');
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iop->heredoc = Xclose(xs, xp);
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4
sh.h
4
sh.h
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@ -154,9 +154,9 @@
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#endif
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#ifdef EXTERN
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.439 2011/03/07 20:30:40 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.440 2011/03/07 20:32:50 tg Exp $");
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#endif
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#define MKSH_VERSION "R39 2011/03/06"
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#define MKSH_VERSION "R39 2011/03/07"
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#ifndef MKSH_INCLUDES_ONLY
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