# $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
#
- # Generated on Wed Jul 28 20:32:22 EET DST 1999 [metaconfig 3.0 PL70]
+ # Generated on Sun Aug 1 00:18:49 EET DST 1999 [metaconfig 3.0 PL70]
# (with additional metaconfig patches by perlbug@perl.com)
cat >/tmp/c1$$ <<EOF
bin=''
binexp=''
installbin=''
+ bincompat5005=''
+ d_bincompat5005=''
byteorder=''
cc=''
gccversion=''
: user has specified that a threading perl is to be built,
: we may need to set or change some other defaults.
if $test -f usethreads.cbu; then
+ echo "Your platform has some specific hints for threaded builds, using them..."
. ./usethreads.cbu
- fi
- case "$osname" in
- aix|dec_osf|dos_djgpp|freebsd|hpux|irix|linux|next|openbsd|os2|solaris|vmesa)
- # Known thread-capable platforms.
- ;;
- *)
- cat >&4 <<EOM
- $osname is not known to support threads.
- Please let perlbug@perl.com know how to do that.
-
- Cannot continue, aborting.
+ else
+ $cat <<EOM
+ (Your platform doesn't have any specific hints for threaded builds.
+ Assuming POSIX threads, then.)
EOM
- exit 1
- ;;
- esac # $osname
+ fi
;;
- esac # $usethreads
+ esac
cat <<EOM
set usemultiplicity
eval $setvar
+ : determine where manual pages are on this system
+ echo " "
+ case "$sysman" in
+ '')
+ syspath='/usr/man/man1 /usr/man/mann /usr/man/manl /usr/man/local/man1'
+ syspath="$syspath /usr/man/u_man/man1 /usr/share/man/man1"
+ syspath="$syspath /usr/catman/u_man/man1 /usr/man/l_man/man1"
+ syspath="$syspath /usr/local/man/u_man/man1 /usr/local/man/l_man/man1"
+ syspath="$syspath /usr/man/man.L /local/man/man1 /usr/local/man/man1"
+ sysman=`./loc . /usr/man/man1 $syspath`
+ ;;
+ esac
+ if $test -d "$sysman"; then
+ echo "System manual is in $sysman." >&4
+ else
+ echo "Could not find manual pages in source form." >&4
+ fi
+
+ : see what memory models we can support
+ case "$models" in
+ '')
+ $cat >pdp11.c <<'EOP'
+ int main() {
+ #ifdef pdp11
+ exit(0);
+ #else
+ exit(1);
+ #endif
+ }
+ EOP
+ ( cc -o pdp11 pdp11.c ) >/dev/null 2>&1
+ if $test -f pdp11 && ./pdp11 2>/dev/null; then
+ dflt='unsplit split'
+ else
+ tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
+ case "$tans" in
+ X) dflt='none';;
+ *) if $test -d /lib/small || $test -d /usr/lib/small; then
+ dflt='small'
+ else
+ dflt=''
+ fi
+ if $test -d /lib/medium || $test -d /usr/lib/medium; then
+ dflt="$dflt medium"
+ fi
+ if $test -d /lib/large || $test -d /usr/lib/large; then
+ dflt="$dflt large"
+ fi
+ if $test -d /lib/huge || $test -d /usr/lib/huge; then
+ dflt="$dflt huge"
+ fi
+ esac
+ fi;;
+ *) dflt="$models";;
+ esac
+ $cat <<EOM
+
+ Some systems have different model sizes. On most systems they are called
+ small, medium, large, and huge. On the PDP11 they are called unsplit and
+ split. If your system doesn't support different memory models, say "none".
+ If you wish to force everything to one memory model, say "none" here and
+ put the appropriate flags later when it asks you for other cc and ld flags.
+ Venix systems may wish to put "none" and let the compiler figure things out.
+ (In the following question multiple model names should be space separated.)
+
+ The default for most systems is "none".
+
+ EOM
+ rp="Which memory models are supported?"
+ . ./myread
+ models="$ans"
+
+ case "$models" in
+ none)
+ small=''
+ medium=''
+ large=''
+ huge=''
+ unsplit=''
+ split=''
+ ;;
+ *split)
+ case "$split" in
+ '') if $contains '\-i' $sysman/ld.1 >/dev/null 2>&1 || \
+ $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then
+ dflt='-i'
+ else
+ dflt='none'
+ fi;;
+ *) dflt="$split";;
+ esac
+ rp="What flag indicates separate I and D space?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';;
+ esac
+ split="$tans"
+ unsplit='';;
+ *large*|*small*|*medium*|*huge*)
+ case "$models" in
+ *large*)
+ case "$large" in
+ '') dflt='-Ml';;
+ *) dflt="$large";;
+ esac
+ rp="What flag indicates large model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ large="$tans";;
+ *) large='';;
+ esac
+ case "$models" in
+ *huge*) case "$huge" in
+ '') dflt='-Mh';;
+ *) dflt="$huge";;
+ esac
+ rp="What flag indicates huge model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ huge="$tans";;
+ *) huge="$large";;
+ esac
+ case "$models" in
+ *medium*) case "$medium" in
+ '') dflt='-Mm';;
+ *) dflt="$medium";;
+ esac
+ rp="What flag indicates medium model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ medium="$tans";;
+ *) medium="$large";;
+ esac
+ case "$models" in
+ *small*) case "$small" in
+ '') dflt='none';;
+ *) dflt="$small";;
+ esac
+ rp="What flag indicates small model?"
+ . ./myread
+ tans="$ans"
+ case "$tans" in
+ none) tans='';
+ esac
+ small="$tans";;
+ *) small='';;
+ esac
+ ;;
+ *)
+ echo "Unrecognized memory models--you may have to edit Makefile.SH" >&4
+ ;;
+ esac
+ $rm -f pdp11.* pdp11
+
+ : make some quick guesses about what we are up against
+ echo " "
+ $echo $n "Hmm... $c"
+ echo exit 1 >bsd
+ echo exit 1 >usg
+ echo exit 1 >v7
+ echo exit 1 >osf1
+ echo exit 1 >eunice
+ echo exit 1 >xenix
+ echo exit 1 >venix
+ echo exit 1 >os2
+ d_bsd="$undef"
+ $cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
+ if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1
+ then
+ echo "Looks kind of like an OSF/1 system, but we'll see..."
+ echo exit 0 >osf1
+ elif test `echo abc | tr a-z A-Z` = Abc ; then
+ xxx=`./loc addbib blurfl $pth`
+ if $test -f $xxx; then
+ echo "Looks kind of like a USG system with BSD features, but we'll see..."
+ echo exit 0 >bsd
+ echo exit 0 >usg
+ else
+ if $contains SIGTSTP foo >/dev/null 2>&1 ; then
+ echo "Looks kind of like an extended USG system, but we'll see..."
+ else
+ echo "Looks kind of like a USG system, but we'll see..."
+ fi
+ echo exit 0 >usg
+ fi
+ elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
+ echo "Looks kind of like a BSD system, but we'll see..."
+ d_bsd="$define"
+ echo exit 0 >bsd
+ else
+ echo "Looks kind of like a Version 7 system, but we'll see..."
+ echo exit 0 >v7
+ fi
+ case "$eunicefix" in
+ *unixtovms*)
+ $cat <<'EOI'
+ There is, however, a strange, musty smell in the air that reminds me of
+ something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
+ EOI
+ echo exit 0 >eunice
+ d_eunice="$define"
+ : it so happens the Eunice I know will not run shell scripts in Unix format
+ ;;
+ *)
+ echo " "
+ echo "Congratulations. You aren't running Eunice."
+ d_eunice="$undef"
+ ;;
+ esac
+ : Detect OS2. The p_ variable is set above in the Head.U unit.
+ case "$p_" in
+ :) ;;
+ *)
+ $cat <<'EOI'
+ I have the feeling something is not exactly right, however...don't tell me...
+ lemme think...does HAL ring a bell?...no, of course, you're only running OS/2!
+ EOI
+ echo exit 0 >os2
+ ;;
+ esac
+ if test -f /xenix; then
+ echo "Actually, this looks more like a XENIX system..."
+ echo exit 0 >xenix
+ d_xenix="$define"
+ else
+ echo " "
+ echo "It's not Xenix..."
+ d_xenix="$undef"
+ fi
+ chmod +x xenix
+ $eunicefix xenix
+ if test -f /venix; then
+ echo "Actually, this looks more like a VENIX system..."
+ echo exit 0 >venix
+ else
+ echo " "
+ if ./xenix; then
+ : null
+ else
+ echo "Nor is it Venix..."
+ fi
+ fi
+ chmod +x bsd usg v7 osf1 eunice xenix venix os2
+ $eunicefix bsd usg v7 osf1 eunice xenix venix os2
+ $rm -f foo
+
+ : see if we need a special compiler
+ echo " "
+ if ./usg; then
+ case "$cc" in
+ '') case "$Mcc" in
+ /*) dflt='Mcc';;
+ *) case "$large" in
+ -M*) dflt='cc';;
+ *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then
+ if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then
+ dflt='cc'
+ else
+ dflt='cc -M'
+ fi
+ else
+ dflt='cc'
+ fi;;
+ esac;;
+ esac;;
+ *) dflt="$cc";;
+ esac
+ case "$dflt" in
+ *M*) $cat <<'EOM'
+ On some older systems the default C compiler will not resolve multiple global
+ references that happen to have the same name. On some such systems the "Mcc"
+ command may be used to force these to be resolved. On other systems a "cc -M"
+ command is required. (Note that the -M flag on other systems indicates a
+ memory model to use!) If you have the Gnu C compiler, you might wish to use
+ that instead.
+
+ EOM
+ ;;
+ esac
+ rp="Use which C compiler?"
+ . ./myread
+ cc="$ans"
+ else
+ case "$cc" in
+ '') dflt=cc;;
+ *) dflt="$cc";;
+ esac
+ rp="Use which C compiler?"
+ . ./myread
+ cc="$ans"
+ fi
+ : Look for a hint-file generated 'call-back-unit'. Now that the
+ : user has specified the compiler, we may need to set or change some
+ : other defaults.
+ if $test -f cc.cbu; then
+ . ./cc.cbu
+ fi
+ echo " "
+ echo "Checking for GNU cc in disguise and/or its version number..." >&4
+ $cat >gccvers.c <<EOM
+ #include <stdio.h>
+ int main() {
+ #ifdef __GNUC__
+ #ifdef __VERSION__
+ printf("%s\n", __VERSION__);
+ #else
+ printf("%s\n", "1");
+ #endif
+ #endif
+ exit(0);
+ }
+ EOM
+ if $cc -o gccvers gccvers.c; then
+ gccversion=`./gccvers`
+ case "$gccversion" in
+ '') echo "You are not using GNU cc." ;;
+ *) echo "You are using GNU cc $gccversion." ;;
+ esac
+ else
+ echo " "
+ echo "*** WHOA THERE!!! ***" >&4
+ echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4
+ case "$knowitall" in
+ '')
+ echo " You'd better start hunting for one and let me know about it." >&4
+ exit 1
+ ;;
+ esac
+ fi
+ $rm -f gccvers*
+ case "$gccversion" in
+ 1*) cpp=`./loc gcc-cpp $cpp $pth` ;;
+ esac
+
cat <<EOM
Perl can be built to take advantage of explicit 64-bit interfaces,
: user has specified that a 64 bit perl is to be built,
: we may need to set or change some other defaults.
if $test -f use64bits.cbu; then
+ echo "Your platform has some specific hints for 64-bit builds, using them..."
. ./use64bits.cbu
- fi
- case "$osname" in
- aix|dec_osf|hpux|irix|solaris|unicos)
- # Known 64-bit capable platforms.
- ;;
- *)
- cat >&4 <<EOM
- $osname is not known to support 64-bit interfaces.
- Please let perlbug@perl.com know how to do that.
-
- Cannot continue, aborting.
+ else
+ $cat <<EOM
+ (Your platform doesn't have any specific hints for 64-bit builds.
+ This is probably okay, especially if your system is a true 64-bit system.)
EOM
- exit 1
- ;;
- esac
+ case "$gccversion" in
+ '') ;;
+ *) $cat <<EOM
+ But since you seem to be using gcc,
+ I will now add -DUSE_LONG_LONG to the compilation flags.
+ EOM
+ ccflags="$ccflags -DUSE_LONG_LONG"
+ ;;
+ esac
+ fi
;;
esac
installarchlib="$archlibexp"
fi
- : make some quick guesses about what we are up against
- echo " "
- $echo $n "Hmm... $c"
- echo exit 1 >bsd
- echo exit 1 >usg
- echo exit 1 >v7
- echo exit 1 >osf1
- echo exit 1 >eunice
- echo exit 1 >xenix
- echo exit 1 >venix
- echo exit 1 >os2
- d_bsd="$undef"
- $cat /usr/include/signal.h /usr/include/sys/signal.h >foo 2>/dev/null
- if test -f /osf_boot || $contains 'OSF/1' /usr/include/ctype.h >/dev/null 2>&1
- then
- echo "Looks kind of like an OSF/1 system, but we'll see..."
- echo exit 0 >osf1
- elif test `echo abc | tr a-z A-Z` = Abc ; then
- xxx=`./loc addbib blurfl $pth`
- if $test -f $xxx; then
- echo "Looks kind of like a USG system with BSD features, but we'll see..."
- echo exit 0 >bsd
- echo exit 0 >usg
- else
- if $contains SIGTSTP foo >/dev/null 2>&1 ; then
- echo "Looks kind of like an extended USG system, but we'll see..."
- else
- echo "Looks kind of like a USG system, but we'll see..."
- fi
- echo exit 0 >usg
- fi
- elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
- echo "Looks kind of like a BSD system, but we'll see..."
- d_bsd="$define"
- echo exit 0 >bsd
- else
- echo "Looks kind of like a Version 7 system, but we'll see..."
- echo exit 0 >v7
- fi
- case "$eunicefix" in
- *unixtovms*)
- $cat <<'EOI'
- There is, however, a strange, musty smell in the air that reminds me of
- something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
- EOI
- echo exit 0 >eunice
- d_eunice="$define"
- : it so happens the Eunice I know will not run shell scripts in Unix format
- ;;
- *)
- echo " "
- echo "Congratulations. You aren't running Eunice."
- d_eunice="$undef"
- ;;
- esac
- : Detect OS2. The p_ variable is set above in the Head.U unit.
- case "$p_" in
- :) ;;
- *)
- $cat <<'EOI'
- I have the feeling something is not exactly right, however...don't tell me...
- lemme think...does HAL ring a bell?...no, of course, you're only running OS/2!
- EOI
- echo exit 0 >os2
- ;;
- esac
- if test -f /xenix; then
- echo "Actually, this looks more like a XENIX system..."
- echo exit 0 >xenix
- d_xenix="$define"
- else
- echo " "
- echo "It's not Xenix..."
- d_xenix="$undef"
- fi
- chmod +x xenix
- $eunicefix xenix
- if test -f /venix; then
- echo "Actually, this looks more like a VENIX system..."
- echo exit 0 >venix
- else
- echo " "
- if ./xenix; then
- : null
- else
- echo "Nor is it Venix..."
- fi
- fi
- chmod +x bsd usg v7 osf1 eunice xenix venix os2
- $eunicefix bsd usg v7 osf1 eunice xenix venix os2
- $rm -f foo
+
+ : Binary compatibility with 5.005 is not possible for builds
+ : with advanced features
+ case "$usethreads$usemultiplicity" in
+ *define*) bincompat5005="$undef" ;;
+ *) $cat <<EOM
+
+ Perl 5.006 can be compiled for binary compatibility with 5.005.
+ If you decide to do so, you will be able to continue using most
+ of the extensions that were compiled for Perl 5.005.
+
+ EOM
+ case "$bincompat5005$d_bincompat5005" in
+ *"$undef"*) dflt=n ;;
+ *) dflt=y ;;
+ esac
+ rp='Binary compatibility with Perl 5.005?'
+ . ./myread
+ case "$ans" in
+ y*) val="$define" ;;
+ *) val="$undef" ;;
+ esac
+ set d_bincompat5005
+ eval $setvar
+ case "$d_bincompat5005" in
+ "$define") bincompat5005="$define" ;;
+ *) bincompat5005="$undef" ;;
+ esac
+ ;;
+ esac
+
: see if setuid scripts can be secure
$cat <<EOM
set d_dosuid
eval $setvar
- : determine where manual pages are on this system
- echo " "
- case "$sysman" in
- '')
- syspath='/usr/man/man1 /usr/man/mann /usr/man/manl /usr/man/local/man1'
- syspath="$syspath /usr/man/u_man/man1 /usr/share/man/man1"
- syspath="$syspath /usr/catman/u_man/man1 /usr/man/l_man/man1"
- syspath="$syspath /usr/local/man/u_man/man1 /usr/local/man/l_man/man1"
- syspath="$syspath /usr/man/man.L /local/man/man1 /usr/local/man/man1"
- sysman=`./loc . /usr/man/man1 $syspath`
- ;;
- esac
- if $test -d "$sysman"; then
- echo "System manual is in $sysman." >&4
- else
- echo "Could not find manual pages in source form." >&4
- fi
-
- : see what memory models we can support
- case "$models" in
- '')
- $cat >pdp11.c <<'EOP'
- int main() {
- #ifdef pdp11
- exit(0);
- #else
- exit(1);
- #endif
- }
- EOP
- ( cc -o pdp11 pdp11.c ) >/dev/null 2>&1
- if $test -f pdp11 && ./pdp11 2>/dev/null; then
- dflt='unsplit split'
- else
- tans=`./loc . X /lib/small /lib/large /usr/lib/small /usr/lib/large /lib/medium /usr/lib/medium /lib/huge`
- case "$tans" in
- X) dflt='none';;
- *) if $test -d /lib/small || $test -d /usr/lib/small; then
- dflt='small'
- else
- dflt=''
- fi
- if $test -d /lib/medium || $test -d /usr/lib/medium; then
- dflt="$dflt medium"
- fi
- if $test -d /lib/large || $test -d /usr/lib/large; then
- dflt="$dflt large"
- fi
- if $test -d /lib/huge || $test -d /usr/lib/huge; then
- dflt="$dflt huge"
- fi
- esac
- fi;;
- *) dflt="$models";;
- esac
- $cat <<EOM
-
- Some systems have different model sizes. On most systems they are called
- small, medium, large, and huge. On the PDP11 they are called unsplit and
- split. If your system doesn't support different memory models, say "none".
- If you wish to force everything to one memory model, say "none" here and
- put the appropriate flags later when it asks you for other cc and ld flags.
- Venix systems may wish to put "none" and let the compiler figure things out.
- (In the following question multiple model names should be space separated.)
-
- The default for most systems is "none".
-
- EOM
- rp="Which memory models are supported?"
- . ./myread
- models="$ans"
-
- case "$models" in
- none)
- small=''
- medium=''
- large=''
- huge=''
- unsplit=''
- split=''
- ;;
- *split)
- case "$split" in
- '') if $contains '\-i' $sysman/ld.1 >/dev/null 2>&1 || \
- $contains '\-i' $sysman/cc.1 >/dev/null 2>&1; then
- dflt='-i'
- else
- dflt='none'
- fi;;
- *) dflt="$split";;
- esac
- rp="What flag indicates separate I and D space?"
- . ./myread
- tans="$ans"
- case "$tans" in
- none) tans='';;
- esac
- split="$tans"
- unsplit='';;
- *large*|*small*|*medium*|*huge*)
- case "$models" in
- *large*)
- case "$large" in
- '') dflt='-Ml';;
- *) dflt="$large";;
- esac
- rp="What flag indicates large model?"
- . ./myread
- tans="$ans"
- case "$tans" in
- none) tans='';
- esac
- large="$tans";;
- *) large='';;
- esac
- case "$models" in
- *huge*) case "$huge" in
- '') dflt='-Mh';;
- *) dflt="$huge";;
- esac
- rp="What flag indicates huge model?"
- . ./myread
- tans="$ans"
- case "$tans" in
- none) tans='';
- esac
- huge="$tans";;
- *) huge="$large";;
- esac
- case "$models" in
- *medium*) case "$medium" in
- '') dflt='-Mm';;
- *) dflt="$medium";;
- esac
- rp="What flag indicates medium model?"
- . ./myread
- tans="$ans"
- case "$tans" in
- none) tans='';
- esac
- medium="$tans";;
- *) medium="$large";;
- esac
- case "$models" in
- *small*) case "$small" in
- '') dflt='none';;
- *) dflt="$small";;
- esac
- rp="What flag indicates small model?"
- . ./myread
- tans="$ans"
- case "$tans" in
- none) tans='';
- esac
- small="$tans";;
- *) small='';;
- esac
- ;;
- *)
- echo "Unrecognized memory models--you may have to edit Makefile.SH" >&4
- ;;
- esac
- $rm -f pdp11.* pdp11
-
- : see if we need a special compiler
- echo " "
- if ./usg; then
- case "$cc" in
- '') case "$Mcc" in
- /*) dflt='Mcc';;
- *) case "$large" in
- -M*) dflt='cc';;
- *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then
- if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then
- dflt='cc'
- else
- dflt='cc -M'
- fi
- else
- dflt='cc'
- fi;;
- esac;;
- esac;;
- *) dflt="$cc";;
- esac
- case "$dflt" in
- *M*) $cat <<'EOM'
- On some older systems the default C compiler will not resolve multiple global
- references that happen to have the same name. On some such systems the "Mcc"
- command may be used to force these to be resolved. On other systems a "cc -M"
- command is required. (Note that the -M flag on other systems indicates a
- memory model to use!) If you have the Gnu C compiler, you might wish to use
- that instead.
-
- EOM
- ;;
- esac
- rp="Use which C compiler?"
- . ./myread
- cc="$ans"
- else
- case "$cc" in
- '') dflt=cc;;
- *) dflt="$cc";;
- esac
- rp="Use which C compiler?"
- . ./myread
- cc="$ans"
- fi
- : Look for a hint-file generated 'call-back-unit'. Now that the
- : user has specified the compiler, we may need to set or change some
- : other defaults.
- if $test -f cc.cbu; then
- . ./cc.cbu
- fi
- echo " "
- echo "Checking for GNU cc in disguise and/or its version number..." >&4
- $cat >gccvers.c <<EOM
- #include <stdio.h>
- int main() {
- #ifdef __GNUC__
- #ifdef __VERSION__
- printf("%s\n", __VERSION__);
- #else
- printf("%s\n", "1");
- #endif
- #endif
- exit(0);
- }
- EOM
- if $cc -o gccvers gccvers.c; then
- gccversion=`./gccvers`
- case "$gccversion" in
- '') echo "You are not using GNU cc." ;;
- *) echo "You are using GNU cc $gccversion." ;;
- esac
- else
- echo " "
- echo "*** WHOA THERE!!! ***" >&4
- echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4
- case "$knowitall" in
- '')
- echo " You'd better start hunting for one and let me know about it." >&4
- exit 1
- ;;
- esac
- fi
- $rm -f gccvers*
- case "$gccversion" in
- 1*) cpp=`./loc gcc-cpp $cpp $pth` ;;
- esac
-
: What should the include directory be ?
echo " "
$echo $n "Hmm... $c"
EOF
chmod +x findhdr
+
: define an alternate in-header-list? function
inhdr='echo " "; td=$define; tu=$undef; yyy=$@;
cont=true; xxf="echo \"<\$1> found.\" >&4";
baserev='$baserev'
bash='$bash'
bin='$bin'
+ bincompat5005='$bincompat5005'
binexp='$binexp'
bison='$bison'
byacc='$byacc'
d_attribut='$d_attribut'
d_bcmp='$d_bcmp'
d_bcopy='$d_bcopy'
+ d_bincompat5005='$d_bincompat5005'
d_bsd='$d_bsd'
d_bsdgetpgrp='$d_bsdgetpgrp'
d_bsdsetpgrp='$d_bsdsetpgrp'
/* Assumptions: if ANCH_GPOS, then strpos is anchored. XXXX Check GPOS logic */
-/* If SCREAM, then sv should be compatible with strpos and strend.
+/* If SCREAM, then SvPVX(sv) should be compatible with strpos and strend.
Otherwise, only SvCUR(sv) is used to get strbeg. */
/* XXXX We assume that strpos is strbeg unless sv. */
+/* A failure to find a constant substring means that there is no need to make
+ an expensive call to REx engine, thus we celebrate a failure. Similarly,
+ finding a substring too deep into the string means that less calls to
+ regtry() should be needed. */
+
char *
Perl_re_intuit_start(pTHX_ regexp *prog, SV *sv, char *strpos,
char *strend, U32 flags, re_scream_pos_data *data)
{
- I32 start_shift;
+ register I32 start_shift;
/* Should be nonnegative! */
- I32 end_shift;
- char *s;
+ register I32 end_shift;
+ register char *s;
+ register SV *check;
char *t;
I32 ml_anch;
+ char *tmp;
+ register char *other_last = Nullch;
DEBUG_r( if (!PL_colorset) reginitcolors() );
DEBUG_r(PerlIO_printf(Perl_debug_log,
- "%sGuessing start of match:%s `%s%.60s%s%s' against `%s%.*s%s%s'\n",
+ "%sGuessing start of match, REx%s `%s%.60s%s%s' against `%s%.*s%s%s'...\n",
PL_colors[4],PL_colors[5],PL_colors[0],
prog->precomp,
PL_colors[1],
(strend - strpos > 60 ? "..." : ""))
);
- if (prog->minlen > strend - strpos)
+ if (prog->minlen > strend - strpos) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "String too short...\n"));
goto fail;
-
- /* XXXX Move further down? */
- start_shift = prog->check_offset_min; /* okay to underestimate on CC */
- /* Should be nonnegative! */
- end_shift = prog->minlen - start_shift -
- CHR_SVLEN(prog->check_substr) + (SvTAIL(prog->check_substr) != 0);
-
- if (prog->reganch & ROPT_ANCH) {
+ }
+ if (prog->reganch & ROPT_ANCH) { /* Match at beg-of-str or after \n */
ml_anch = !( (prog->reganch & ROPT_ANCH_SINGLE)
|| ( (prog->reganch & ROPT_ANCH_BOL)
- && !PL_multiline ) );
+ && !PL_multiline ) ); /* Check after \n? */
if ((prog->check_offset_min == prog->check_offset_max) && !ml_anch) {
- /* Anchored... */
+ /* Substring at constant offset from beg-of-str... */
I32 slen;
if ( !(prog->reganch & ROPT_ANCH_GPOS) /* Checked by the caller */
- && (sv && (strpos + SvCUR(sv) != strend)) )
+ && (sv && (strpos + SvCUR(sv) != strend)) ) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "Not at start...\n"));
goto fail;
-
+ }
PL_regeol = strend; /* Used in HOP() */
- s = (char*)HOP((U8*)strpos, prog->check_offset_min);
+ s = HOPc(strpos, prog->check_offset_min);
if (SvTAIL(prog->check_substr)) {
slen = SvCUR(prog->check_substr); /* >= 1 */
- if ( strend - s > slen || strend - s < slen - 1 ) {
- s = Nullch;
- goto finish;
- }
- if ( strend - s == slen && strend[-1] != '\n') {
- s = Nullch;
- goto finish;
+ if ( strend - s > slen || strend - s < slen - 1
+ || (strend - s == slen && strend[-1] != '\n')) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "String too long...\n"));
+ goto fail_finish;
}
/* Now should match s[0..slen-2] */
slen--;
if (slen && (*SvPVX(prog->check_substr) != *s
|| (slen > 1
- && memNE(SvPVX(prog->check_substr), s, slen))))
- s = Nullch;
+ && memNE(SvPVX(prog->check_substr), s, slen)))) {
+ report_neq:
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "String not equal...\n"));
+ goto fail_finish;
+ }
}
else if (*SvPVX(prog->check_substr) != *s
|| ((slen = SvCUR(prog->check_substr)) > 1
&& memNE(SvPVX(prog->check_substr), s, slen)))
- s = Nullch;
- else
- s = strpos;
- goto finish;
+ goto report_neq;
+ goto success_at_start;
}
+ /* Match is anchored, but substr is not anchored wrt beg-of-str. */
s = strpos;
- if (!ml_anch && (s + prog->check_offset_max < strend - prog->minlen))
- end_shift += strend - s - prog->minlen - prog->check_offset_max;
+ start_shift = prog->check_offset_min; /* okay to underestimate on CC */
+ /* Should be nonnegative! */
+ end_shift = prog->minlen - start_shift -
+ CHR_SVLEN(prog->check_substr) + (SvTAIL(prog->check_substr) != 0);
+ if (!ml_anch) {
+ I32 end = prog->check_offset_max + CHR_SVLEN(prog->check_substr)
+ - (SvTAIL(prog->check_substr) != 0);
+ I32 eshift = strend - s - end;
+
+ if (end_shift < eshift)
+ end_shift = eshift;
+ }
}
- else {
+ else { /* Can match at random position */
ml_anch = 0;
s = strpos;
+ start_shift = prog->check_offset_min; /* okay to underestimate on CC */
+ /* Should be nonnegative! */
+ end_shift = prog->minlen - start_shift -
+ CHR_SVLEN(prog->check_substr) + (SvTAIL(prog->check_substr) != 0);
}
- restart:
+#ifdef DEBUGGING /* 7/99: reports of failure (with the older version) */
if (end_shift < 0)
- end_shift = 0; /* can happen when strend == strpos */
+ croak("panic: end_shift");
+#endif
+
+ check = prog->check_substr;
+ restart:
+ /* Find a possible match in the region s..strend by looking for
+ the "check" substring in the region corrected by start/end_shift. */
if (flags & REXEC_SCREAM) {
- SV *c = prog->check_substr;
char *strbeg = SvPVX(sv); /* XXXX Assume PV_force() on SCREAM! */
I32 p = -1; /* Internal iterator of scream. */
I32 *pp = data ? data->scream_pos : &p;
- if (PL_screamfirst[BmRARE(c)] >= 0
- || ( BmRARE(c) == '\n'
- && (BmPREVIOUS(c) == SvCUR(c) - 1)
- && SvTAIL(c) ))
- s = screaminstr(sv, prog->check_substr,
- start_shift + (strpos - strbeg), end_shift, pp, 0);
+ if (PL_screamfirst[BmRARE(check)] >= 0
+ || ( BmRARE(check) == '\n'
+ && (BmPREVIOUS(check) == SvCUR(check) - 1)
+ && SvTAIL(check) ))
+ s = screaminstr(sv, check,
+ start_shift + (s - strbeg), end_shift, pp, 0);
else
- s = Nullch;
+ goto fail_finish;
if (data)
*data->scream_olds = s;
}
else
s = fbm_instr((unsigned char*)s + start_shift,
(unsigned char*)strend - end_shift,
- prog->check_substr, PL_multiline ? FBMrf_MULTILINE : 0);
+ check, PL_multiline ? FBMrf_MULTILINE : 0);
/* Update the count-of-usability, remove useless subpatterns,
unshift s. */
- finish:
- if (!s) {
- ++BmUSEFUL(prog->check_substr); /* hooray */
- goto fail; /* not present */
+
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%s %s substr `%s%.*s%s'%s%s",
+ (s ? "Found" : "Did not find"),
+ ((check == prog->anchored_substr) ? "anchored" : "floating"),
+ PL_colors[0],
+ SvCUR(check) - (SvTAIL(check)!=0), SvPVX(check),
+ PL_colors[1], (SvTAIL(check) ? "$" : ""),
+ (s ? " at offset " : "...\n") ) );
+
+ if (!s)
+ goto fail_finish;
+
+ /* Finish the diagnostic message */
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%ld...\n", (long)(s - strpos)) );
+
+ /* Got a candidate. Check MBOL anchoring, and the *other* substr.
+ Start with the other substr.
+ XXXX no SCREAM optimization yet - and a very coarse implementation
+ XXXX /ttx+/ results in anchored=`ttx', floating=`x'. floating will
+ *always* match. Probably should be marked during compile...
+ Probably it is right to do no SCREAM here...
+ */
+
+ if (prog->float_substr && prog->anchored_substr) {
+ /* Take into account the anchored substring. */
+ /* XXXX May be hopelessly wrong for UTF... */
+ if (!other_last)
+ other_last = strpos - 1;
+ if (check == prog->float_substr) {
+ char *last = s - start_shift, *last1, *last2;
+ char *s1 = s;
+
+ tmp = PL_bostr;
+ t = s - prog->check_offset_max;
+ if (s - strpos > prog->check_offset_max /* signed-corrected t > strpos */
+ && (!(prog->reganch & ROPT_UTF8)
+ || (PL_bostr = strpos, /* Used in regcopmaybe() */
+ (t = reghopmaybe_c(s, -(prog->check_offset_max)))
+ && t > strpos)))
+ ;
+ else
+ t = strpos;
+ t += prog->anchored_offset;
+ if (t <= other_last)
+ t = other_last + 1;
+ PL_bostr = tmp;
+ last2 = last1 = strend - prog->minlen;
+ if (last < last1)
+ last1 = last;
+ /* XXXX It is not documented what units *_offsets are in. Assume bytes. */
+ /* On end-of-str: see comment below. */
+ s = fbm_instr((unsigned char*)t,
+ (unsigned char*)last1 + prog->anchored_offset
+ + SvCUR(prog->anchored_substr)
+ - (SvTAIL(prog->anchored_substr)!=0),
+ prog->anchored_substr, PL_multiline ? FBMrf_MULTILINE : 0);
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%s anchored substr `%s%.*s%s'%s",
+ (s ? "Found" : "Contradicts"),
+ PL_colors[0],
+ SvCUR(prog->anchored_substr)
+ - (SvTAIL(prog->anchored_substr)!=0),
+ SvPVX(prog->anchored_substr),
+ PL_colors[1], (SvTAIL(prog->anchored_substr) ? "$" : "")));
+ if (!s) {
+ if (last1 >= last2) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ ", giving up...\n"));
+ goto fail_finish;
+ }
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ ", trying floating at offset %ld...\n",
+ (long)(s1 + 1 - strpos)));
+ PL_regeol = strend; /* Used in HOP() */
+ other_last = last1 + prog->anchored_offset;
+ s = HOPc(last, 1);
+ goto restart;
+ }
+ else {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, " at offset %ld...\n",
+ (long)(s - strpos)));
+ t = s - prog->anchored_offset;
+ other_last = s - 1;
+ if (t == strpos)
+ goto try_at_start;
+ s = s1;
+ goto try_at_offset;
+ }
+ }
+ else { /* Take into account the floating substring. */
+ char *last, *last1;
+ char *s1 = s;
+
+ t = s - start_shift;
+ last1 = last = strend - prog->minlen + prog->float_min_offset;
+ if (last - t > prog->float_max_offset)
+ last = t + prog->float_max_offset;
+ s = t + prog->float_min_offset;
+ if (s <= other_last)
+ s = other_last + 1;
+ /* XXXX It is not documented what units *_offsets are in. Assume bytes. */
+ /* fbm_instr() takes into account exact value of end-of-str
+ if the check is SvTAIL(ed). Since false positives are OK,
+ and end-of-str is not later than strend we are OK. */
+ s = fbm_instr((unsigned char*)s,
+ (unsigned char*)last + SvCUR(prog->float_substr)
+ - (SvTAIL(prog->float_substr)!=0),
+ prog->float_substr, PL_multiline ? FBMrf_MULTILINE : 0);
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%s floating substr `%s%.*s%s'%s",
+ (s ? "Found" : "Contradicts"),
+ PL_colors[0],
+ SvCUR(prog->float_substr)
+ - (SvTAIL(prog->float_substr)!=0),
+ SvPVX(prog->float_substr),
+ PL_colors[1], (SvTAIL(prog->float_substr) ? "$" : "")));
+ if (!s) {
+ if (last1 == last) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ ", giving up...\n"));
+ goto fail_finish;
+ }
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ ", trying anchored starting at offset %ld...\n",
+ (long)(s1 + 1 - strpos)));
+ other_last = last;
+ PL_regeol = strend; /* Used in HOP() */
+ s = HOPc(t, 1);
+ goto restart;
+ }
+ else {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, " at offset %ld...\n",
+ (long)(s - strpos)));
+ other_last = s - 1;
+ if (t == strpos)
+ goto try_at_start;
+ s = s1;
+ goto try_at_offset;
+ }
+ }
}
- else if (s - strpos > prog->check_offset_max &&
- ((prog->reganch & ROPT_UTF8)
- ? ((t = reghopmaybe_c(s, -(prog->check_offset_max)))
- && t >= strpos)
- : (t = s - prog->check_offset_max) != 0) ) {
+
+ t = s - prog->check_offset_max;
+ tmp = PL_bostr;
+ if (s - strpos > prog->check_offset_max /* signed-corrected t > strpos */
+ && (!(prog->reganch & ROPT_UTF8)
+ || (PL_bostr = strpos, /* Used in regcopmaybe() */
+ ((t = reghopmaybe_c(s, -(prog->check_offset_max)))
+ && t > strpos)))) {
+ PL_bostr = tmp;
+ /* Fixed substring is found far enough so that the match
+ cannot start at strpos. */
+ try_at_offset:
if (ml_anch && t[-1] != '\n') {
- find_anchor:
- while (t < strend - end_shift - prog->minlen) {
+ find_anchor: /* Eventually fbm_*() should handle this */
+ while (t < strend - prog->minlen) {
if (*t == '\n') {
if (t < s - prog->check_offset_min) {
s = t + 1;
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "Found /%s^%s/m at offset %ld...\n",
+ PL_colors[0],PL_colors[1], (long)(s - strpos)));
goto set_useful;
}
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "Found /%s^%s/m, restarting at offset %ld...\n",
+ PL_colors[0],PL_colors[1], (long)(t + 1 - strpos)));
s = t + 1;
goto restart;
}
t++;
}
- s = Nullch;
- goto finish;
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "Did not find /%s^%s/m...\n",
+ PL_colors[0],PL_colors[1]));
+ goto fail_finish;
}
s = t;
set_useful:
- ++BmUSEFUL(prog->check_substr); /* hooray/2 */
+ ++BmUSEFUL(prog->check_substr); /* hooray/5 */
}
else {
- if (ml_anch && sv
+ PL_bostr = tmp;
+ /* The found string does not prohibit matching at beg-of-str
+ - no optimization of calling REx engine can be performed,
+ unless it was an MBOL and we are not after MBOL. */
+ try_at_start:
+ /* Even in this situation we may use MBOL flag if strpos is offset
+ wrt the start of the string. */
+ if (ml_anch && sv
&& (strpos + SvCUR(sv) != strend) && strpos[-1] != '\n') {
t = strpos;
goto find_anchor;
}
+ success_at_start:
if (!(prog->reganch & ROPT_NAUGHTY)
&& --BmUSEFUL(prog->check_substr) < 0
&& prog->check_substr == prog->float_substr) { /* boo */
s = strpos;
}
- DEBUG_r(PerlIO_printf(Perl_debug_log, "%sFound%s at offset %ld\n",
- PL_colors[4],PL_colors[5], (long)(s - strpos)) );
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%sGuessed:%s match at offset %ld\n",
+ PL_colors[4], PL_colors[5], (long)(s - strpos)) );
return s;
+
+ fail_finish: /* Substring not found */
+ BmUSEFUL(prog->check_substr) += 5; /* hooray */
fail:
- DEBUG_r(PerlIO_printf(Perl_debug_log, "%sNot found...%s\n",
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%sMatch rejected by optimizer%s\n",
PL_colors[4],PL_colors[5]));
return Nullch;
}
PL_reg_flags = 0;
PL_reg_eval_set = 0;
+ PL_reg_maxiter = 0;
if (prog->reganch & ROPT_UTF8)
PL_reg_flags |= RF_utf8;
DEBUG_r( if (!PL_colorset) reginitcolors() );
DEBUG_r(PerlIO_printf(Perl_debug_log,
- "%sMatching%s `%s%.60s%s%s' against `%s%.*s%s%s'\n",
+ "%sMatching REx%s `%s%.60s%s%s' against `%s%.*s%s%s'\n",
PL_colors[4],PL_colors[5],PL_colors[0],
prog->precomp,
PL_colors[1],
s += UTF8SKIP(s);
}
break;
- case ALNUMC:
- while (s < strend) {
- if (isALNUMC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case ALNUMCUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_alnumc, (U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case ALNUMCL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isALNUMC_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case ALNUMCLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isALNUMC_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NALNUMC:
- while (s < strend) {
- if (!isALNUMC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
+ }
+ }
+ else {
+ dontbother = 0;
+ if (prog->float_substr != Nullsv) { /* Trim the end. */
+ char *last;
+ I32 oldpos = scream_pos;
+
+ if (flags & REXEC_SCREAM) {
+ last = screaminstr(sv, prog->float_substr, s - strbeg,
+ end_shift, &scream_pos, 1); /* last one */
+ if (!last)
+ last = scream_olds; /* Only one occurence. */
}
- break;
- case NALNUMCUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_alnumc, (U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
+ else {
+ STRLEN len;
+ char *little = SvPV(prog->float_substr, len);
+
+ if (SvTAIL(prog->float_substr)) {
+ if (memEQ(strend - len + 1, little, len - 1))
+ last = strend - len + 1;
+ else if (!PL_multiline)
+ last = memEQ(strend - len, little, len)
+ ? strend - len : Nullch;
else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NALNUMCL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isALNUMC_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
+ goto find_last;
+ } else {
+ find_last:
+ if (len)
+ last = rninstr(s, strend, little, little + len);
else
- tmp = doevery;
+ last = strend; /* matching `$' */
}
- else
- tmp = 1;
- s++;
}
- break;
- case NALNUMCLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isALNUMC_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
+ if (last == NULL) goto phooey; /* Should not happen! */
+ dontbother = strend - last + prog->float_min_offset;
+ }
+ if (minlen && (dontbother < minlen))
+ dontbother = minlen - 1;
+ strend -= dontbother; /* this one's always in bytes! */
+ /* We don't know much -- general case. */
+ if (UTF) {
+ for (;;) {
+ if (regtry(prog, s))
+ goto got_it;
+ if (s >= strend)
+ break;
s += UTF8SKIP(s);
+ };
+ }
+ else {
+ do {
+ if (regtry(prog, s))
+ goto got_it;
+ } while (s++ < strend);
+ }
+ }
+
+ /* Failure. */
+ goto phooey;
+
+ got_it:
+ RX_MATCH_TAINTED_set(prog, PL_reg_flags & RF_tainted);
+
+ if (PL_reg_eval_set) {
+ /* Preserve the current value of $^R */
+ if (oreplsv != GvSV(PL_replgv))
+ sv_setsv(oreplsv, GvSV(PL_replgv));/* So that when GvSV(replgv) is
+ restored, the value remains
+ the same. */
+ restore_pos(aTHXo_ 0);
+ }
+
+ /* make sure $`, $&, $', and $digit will work later */
+ if ( !(flags & REXEC_NOT_FIRST) ) {
+ if (RX_MATCH_COPIED(prog)) {
+ Safefree(prog->subbeg);
+ RX_MATCH_COPIED_off(prog);
+ }
+ if (flags & REXEC_COPY_STR) {
+ I32 i = PL_regeol - startpos + (stringarg - strbeg);
+
+ s = savepvn(strbeg, i);
+ prog->subbeg = s;
+ prog->sublen = i;
+ RX_MATCH_COPIED_on(prog);
+ }
+ else {
+ prog->subbeg = strbeg;
+ prog->sublen = PL_regeol - strbeg; /* strend may have been modified */
+ }
+ }
+
+ return 1;
+
+ phooey:
+ if (PL_reg_eval_set)
+ restore_pos(aTHXo_ 0);
+ return 0;
+ }
+
+ /*
+ - regtry - try match at specific point
+ */
+ STATIC I32 /* 0 failure, 1 success */
+ S_regtry(pTHX_ regexp *prog, char *startpos)
+ {
+ dTHR;
+ register I32 i;
+ register I32 *sp;
+ register I32 *ep;
+ CHECKPOINT lastcp;
+
+ if ((prog->reganch & ROPT_EVAL_SEEN) && !PL_reg_eval_set) {
+ MAGIC *mg;
+
+ PL_reg_eval_set = RS_init;
+ DEBUG_r(DEBUG_s(
+ PerlIO_printf(Perl_debug_log, " setting stack tmpbase at %i\n",
+ PL_stack_sp - PL_stack_base);
+ ));
+ SAVEINT(cxstack[cxstack_ix].blk_oldsp);
+ cxstack[cxstack_ix].blk_oldsp = PL_stack_sp - PL_stack_base;
+ /* Otherwise OP_NEXTSTATE will free whatever on stack now. */
+ SAVETMPS;
+ /* Apparently this is not needed, judging by wantarray. */
+ /* SAVEINT(cxstack[cxstack_ix].blk_gimme);
+ cxstack[cxstack_ix].blk_gimme = G_SCALAR; */
+
+ if (PL_reg_sv) {
+ /* Make $_ available to executed code. */
+ if (PL_reg_sv != DEFSV) {
+ /* SAVE_DEFSV does *not* suffice here for USE_THREADS */
+ SAVESPTR(DEFSV);
+ DEFSV = PL_reg_sv;
}
- break;
- case ASCII:
- while (s < strend) {
- if (isASCII(*(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NASCII:
- while (s < strend) {
- if (!isASCII(*(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case CNTRL:
- while (s < strend) {
- if (isCNTRL(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case CNTRLUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_cntrl,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case CNTRLL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isCNTRL_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case CNTRLLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isCNTRL_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NCNTRL:
- while (s < strend) {
- if (!isCNTRL(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NCNTRLUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_cntrl,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NCNTRLL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isCNTRL_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NCNTRLLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isCNTRL_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case GRAPH:
- while (s < strend) {
- if (isGRAPH(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case GRAPHUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_graph,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case GRAPHL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isGRAPH_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case GRAPHLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isGRAPH_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NGRAPH:
- while (s < strend) {
- if (!isGRAPH(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NGRAPHUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_graph,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NGRAPHL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isGRAPH_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NGRAPHLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isGRAPH_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case LOWER:
- while (s < strend) {
- if (isLOWER(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case LOWERUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_lower,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case LOWERL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isLOWER_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case LOWERLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isLOWER_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NLOWER:
- while (s < strend) {
- if (!isLOWER(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NLOWERUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_lower,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NLOWERL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isLOWER_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NLOWERLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isLOWER_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case PRINT:
- while (s < strend) {
- if (isPRINT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case PRINTUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_print,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case PRINTL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isPRINT_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case PRINTLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isPRINT_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NPRINT:
- while (s < strend) {
- if (!isPRINT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NPRINTUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_print,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NPRINTL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isPRINT_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NPRINTLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isPRINT_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case PUNCT:
- while (s < strend) {
- if (isPUNCT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case PUNCTUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_punct,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case PUNCTL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isPUNCT_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case PUNCTLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isPUNCT_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NPUNCT:
- while (s < strend) {
- if (!isPUNCT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NPUNCTUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_punct,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NPUNCTL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isPUNCT_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NPUNCTLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isPUNCT_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case UPPER:
- while (s < strend) {
- if (isUPPER(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case UPPERUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_upper,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case UPPERL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isUPPER_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case UPPERLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isUPPER_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NUPPER:
- while (s < strend) {
- if (!isUPPER(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NUPPERUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_upper,(U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case NUPPERL:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isUPPER_LC(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NUPPERLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isUPPER_LC_utf8((U8*)s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
- }
- break;
- case XDIGIT:
- while (s < strend) {
- if (isXDIGIT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- case NXDIGIT:
- while (s < strend) {
- if (!isXDIGIT(*s)) {
- if (tmp && regtry(prog, s))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s++;
- }
- break;
- }
- }
- else {
- dontbother = 0;
- if (prog->float_substr != Nullsv) { /* Trim the end. */
- char *last;
- I32 oldpos = scream_pos;
-
- if (flags & REXEC_SCREAM) {
- last = screaminstr(sv, prog->float_substr, s - strbeg,
- end_shift, &scream_pos, 1); /* last one */
- if (!last)
- last = scream_olds; /* Only one occurence. */
- }
- else {
- STRLEN len;
- char *little = SvPV(prog->float_substr, len);
-
- if (SvTAIL(prog->float_substr)) {
- if (memEQ(strend - len + 1, little, len - 1))
- last = strend - len + 1;
- else if (!PL_multiline)
- last = memEQ(strend - len, little, len)
- ? strend - len : Nullch;
- else
- goto find_last;
- } else {
- find_last:
- if (len)
- last = rninstr(s, strend, little, little + len);
- else
- last = strend; /* matching `$' */
- }
- }
- if (last == NULL) goto phooey; /* Should not happen! */
- dontbother = strend - last + prog->float_min_offset;
- }
- if (minlen && (dontbother < minlen))
- dontbother = minlen - 1;
- strend -= dontbother; /* this one's always in bytes! */
- /* We don't know much -- general case. */
- if (UTF) {
- for (;;) {
- if (regtry(prog, s))
- goto got_it;
- if (s >= strend)
- break;
- s += UTF8SKIP(s);
- };
- }
- else {
- do {
- if (regtry(prog, s))
- goto got_it;
- } while (s++ < strend);
- }
- }
-
- /* Failure. */
- goto phooey;
-
- got_it:
- RX_MATCH_TAINTED_set(prog, PL_reg_flags & RF_tainted);
-
- if (PL_reg_eval_set) {
- /* Preserve the current value of $^R */
- if (oreplsv != GvSV(PL_replgv))
- sv_setsv(oreplsv, GvSV(PL_replgv));/* So that when GvSV(replgv) is
- restored, the value remains
- the same. */
- restore_pos(aTHXo_ 0);
- }
-
- /* make sure $`, $&, $', and $digit will work later */
- if ( !(flags & REXEC_NOT_FIRST) ) {
- if (RX_MATCH_COPIED(prog)) {
- Safefree(prog->subbeg);
- RX_MATCH_COPIED_off(prog);
- }
- if (flags & REXEC_COPY_STR) {
- I32 i = PL_regeol - startpos + (stringarg - strbeg);
-
- s = savepvn(strbeg, i);
- prog->subbeg = s;
- prog->sublen = i;
- RX_MATCH_COPIED_on(prog);
- }
- else {
- prog->subbeg = strbeg;
- prog->sublen = PL_regeol - strbeg; /* strend may have been modified */
- }
- }
-
- return 1;
-
- phooey:
- if (PL_reg_eval_set)
- restore_pos(aTHXo_ 0);
- return 0;
- }
-
- /*
- - regtry - try match at specific point
- */
- STATIC I32 /* 0 failure, 1 success */
- S_regtry(pTHX_ regexp *prog, char *startpos)
- {
- dTHR;
- register I32 i;
- register I32 *sp;
- register I32 *ep;
- CHECKPOINT lastcp;
-
- if ((prog->reganch & ROPT_EVAL_SEEN) && !PL_reg_eval_set) {
- MAGIC *mg;
-
- PL_reg_eval_set = RS_init;
- DEBUG_r(DEBUG_s(
- PerlIO_printf(Perl_debug_log, " setting stack tmpbase at %i\n",
- PL_stack_sp - PL_stack_base);
- ));
- SAVEINT(cxstack[cxstack_ix].blk_oldsp);
- cxstack[cxstack_ix].blk_oldsp = PL_stack_sp - PL_stack_base;
- /* Otherwise OP_NEXTSTATE will free whatever on stack now. */
- SAVETMPS;
- /* Apparently this is not needed, judging by wantarray. */
- /* SAVEINT(cxstack[cxstack_ix].blk_gimme);
- cxstack[cxstack_ix].blk_gimme = G_SCALAR; */
-
- if (PL_reg_sv) {
- /* Make $_ available to executed code. */
- if (PL_reg_sv != DEFSV) {
- /* SAVE_DEFSV does *not* suffice here for USE_THREADS */
- SAVESPTR(DEFSV);
- DEFSV = PL_reg_sv;
- }
-
- if (!(SvTYPE(PL_reg_sv) >= SVt_PVMG && SvMAGIC(PL_reg_sv)
- && (mg = mg_find(PL_reg_sv, 'g')))) {
- /* prepare for quick setting of pos */
- sv_magic(PL_reg_sv, (SV*)0, 'g', Nullch, 0);
- mg = mg_find(PL_reg_sv, 'g');
- mg->mg_len = -1;
- }
- PL_reg_magic = mg;
- PL_reg_oldpos = mg->mg_len;
- SAVEDESTRUCTOR(restore_pos, 0);
- }
- if (!PL_reg_curpm)
- New(22,PL_reg_curpm, 1, PMOP);
- PL_reg_curpm->op_pmregexp = prog;
- PL_reg_oldcurpm = PL_curpm;
- PL_curpm = PL_reg_curpm;
- if (RX_MATCH_COPIED(prog)) {
- /* Here is a serious problem: we cannot rewrite subbeg,
- since it may be needed if this match fails. Thus
- $` inside (?{}) could fail... */
- PL_reg_oldsaved = prog->subbeg;
- PL_reg_oldsavedlen = prog->sublen;
- RX_MATCH_COPIED_off(prog);
- }
- else
- PL_reg_oldsaved = Nullch;
- prog->subbeg = PL_bostr;
- prog->sublen = PL_regeol - PL_bostr; /* strend may have been modified */
- }
- prog->startp[0] = startpos - PL_bostr;
- PL_reginput = startpos;
- PL_regstartp = prog->startp;
- PL_regendp = prog->endp;
- PL_reglastparen = &prog->lastparen;
- prog->lastparen = 0;
- PL_regsize = 0;
- DEBUG_r(PL_reg_starttry = startpos);
- if (PL_reg_start_tmpl <= prog->nparens) {
- PL_reg_start_tmpl = prog->nparens*3/2 + 3;
- if(PL_reg_start_tmp)
- Renew(PL_reg_start_tmp, PL_reg_start_tmpl, char*);
- else
- New(22,PL_reg_start_tmp, PL_reg_start_tmpl, char*);
- }
-
- /* XXXX What this code is doing here?!!! There should be no need
- to do this again and again, PL_reglastparen should take care of
- this! */
- sp = prog->startp;
- ep = prog->endp;
- if (prog->nparens) {
- for (i = prog->nparens; i >= 1; i--) {
- *++sp = -1;
- *++ep = -1;
- }
- }
- REGCP_SET;
- if (regmatch(prog->program + 1)) {
- prog->endp[0] = PL_reginput - PL_bostr;
- return 1;
- }
- REGCP_UNWIND;
- return 0;
- }
-
- /*
- - regmatch - main matching routine
- *
- * Conceptually the strategy is simple: check to see whether the current
- * node matches, call self recursively to see whether the rest matches,
- * and then act accordingly. In practice we make some effort to avoid
- * recursion, in particular by going through "ordinary" nodes (that don't
- * need to know whether the rest of the match failed) by a loop instead of
- * by recursion.
- */
- /* [lwall] I've hoisted the register declarations to the outer block in order to
- * maybe save a little bit of pushing and popping on the stack. It also takes
- * advantage of machines that use a register save mask on subroutine entry.
- */
- STATIC I32 /* 0 failure, 1 success */
- S_regmatch(pTHX_ regnode *prog)
- {
- dTHR;
- register regnode *scan; /* Current node. */
- regnode *next; /* Next node. */
- regnode *inner; /* Next node in internal branch. */
- register I32 nextchr; /* renamed nextchr - nextchar colides with
- function of same name */
- register I32 n; /* no or next */
- register I32 ln; /* len or last */
- register char *s; /* operand or save */
- register char *locinput = PL_reginput;
- register I32 c1, c2, paren; /* case fold search, parenth */
- int minmod = 0, sw = 0, logical = 0;
- #ifdef DEBUGGING
- PL_regindent++;
- #endif
-
- /* Note that nextchr is a byte even in UTF */
- nextchr = UCHARAT(locinput);
- scan = prog;
- while (scan != NULL) {
- #define sayNO_L (logical ? (logical = 0, sw = 0, goto cont) : sayNO)
- #ifdef DEBUGGING
- # define sayYES goto yes
- # define sayNO goto no
- # define saySAME(x) if (x) goto yes; else goto no
- # define REPORT_CODE_OFF 24
- #else
- # define sayYES return 1
- # define sayNO return 0
- # define saySAME(x) return x
- #endif
- DEBUG_r( {
- SV *prop = sv_newmortal();
- int docolor = *PL_colors[0];
- int taill = (docolor ? 10 : 7); /* 3 chars for "> <" */
- int l = (PL_regeol - locinput > taill ? taill : PL_regeol - locinput);
- /* The part of the string before starttry has one color
- (pref0_len chars), between starttry and current
- position another one (pref_len - pref0_len chars),
- after the current position the third one.
- We assume that pref0_len <= pref_len, otherwise we
- decrease pref0_len. */
- int pref_len = (locinput - PL_bostr > (5 + taill) - l
- ? (5 + taill) - l : locinput - PL_bostr);
- int pref0_len = pref_len - (locinput - PL_reg_starttry);
-
- if (l + pref_len < (5 + taill) && l < PL_regeol - locinput)
- l = ( PL_regeol - locinput > (5 + taill) - pref_len
- ? (5 + taill) - pref_len : PL_regeol - locinput);
- if (pref0_len < 0)
- pref0_len = 0;
- if (pref0_len > pref_len)
- pref0_len = pref_len;
- regprop(prop, scan);
- PerlIO_printf(Perl_debug_log,
- "%4i <%s%.*s%s%s%.*s%s%s%s%.*s%s>%*s|%3d:%*s%s\n",
- locinput - PL_bostr,
- PL_colors[4], pref0_len,
- locinput - pref_len, PL_colors[5],
- PL_colors[2], pref_len - pref0_len,
- locinput - pref_len + pref0_len, PL_colors[3],
- (docolor ? "" : "> <"),
- PL_colors[0], l, locinput, PL_colors[1],
- 15 - l - pref_len + 1,
- "",
- scan - PL_regprogram, PL_regindent*2, "",
- SvPVX(prop));
- } );
-
- next = scan + NEXT_OFF(scan);
- if (next == scan)
- next = NULL;
-
- switch (OP(scan)) {
- case BOL:
- if (locinput == PL_bostr
- ? PL_regprev == '\n'
- : (PL_multiline &&
- (nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
- {
- /* regtill = regbol; */
- break;
- }
- sayNO;
- case MBOL:
- if (locinput == PL_bostr
- ? PL_regprev == '\n'
- : ((nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
- {
- break;
- }
- sayNO;
- case SBOL:
- if (locinput == PL_regbol && PL_regprev == '\n')
- break;
- sayNO;
- case GPOS:
- if (locinput == PL_reg_ganch)
- break;
- sayNO;
- case EOL:
- if (PL_multiline)
- goto meol;
- else
- goto seol;
- case MEOL:
- meol:
- if ((nextchr || locinput < PL_regeol) && nextchr != '\n')
- sayNO;
- break;
- case SEOL:
- seol:
- if ((nextchr || locinput < PL_regeol) && nextchr != '\n')
- sayNO;
- if (PL_regeol - locinput > 1)
- sayNO;
- break;
- case EOS:
- if (PL_regeol != locinput)
- sayNO;
- break;
- case SANYUTF8:
- if (nextchr & 0x80) {
- locinput += PL_utf8skip[nextchr];
- if (locinput > PL_regeol)
- sayNO;
- nextchr = UCHARAT(locinput);
- break;
- }
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case SANY:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ANYUTF8:
- if (nextchr & 0x80) {
- locinput += PL_utf8skip[nextchr];
- if (locinput > PL_regeol)
- sayNO;
- nextchr = UCHARAT(locinput);
- break;
- }
- if (!nextchr && locinput >= PL_regeol || nextchr == '\n')
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case REG_ANY:
- if (!nextchr && locinput >= PL_regeol || nextchr == '\n')
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case EXACT:
- s = (char *) OPERAND(scan);
- ln = UCHARAT(s++);
- /* Inline the first character, for speed. */
- if (UCHARAT(s) != nextchr)
- sayNO;
- if (PL_regeol - locinput < ln)
- sayNO;
- if (ln > 1 && memNE(s, locinput, ln))
- sayNO;
- locinput += ln;
- nextchr = UCHARAT(locinput);
- break;
- case EXACTFL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case EXACTF:
- s = (char *) OPERAND(scan);
- ln = UCHARAT(s++);
-
- if (UTF) {
- char *l = locinput;
- char *e = s + ln;
- c1 = OP(scan) == EXACTF;
- while (s < e) {
- if (l >= PL_regeol)
- sayNO;
- if (utf8_to_uv((U8*)s, 0) != (c1 ?
- toLOWER_utf8((U8*)l) :
- toLOWER_LC_utf8((U8*)l)))
- {
- sayNO;
- }
- s += UTF8SKIP(s);
- l += UTF8SKIP(l);
- }
- locinput = l;
- nextchr = UCHARAT(locinput);
- break;
- }
-
- /* Inline the first character, for speed. */
- if (UCHARAT(s) != nextchr &&
- UCHARAT(s) != ((OP(scan) == EXACTF)
- ? PL_fold : PL_fold_locale)[nextchr])
- sayNO;
- if (PL_regeol - locinput < ln)
- sayNO;
- if (ln > 1 && (OP(scan) == EXACTF
- ? ibcmp(s, locinput, ln)
- : ibcmp_locale(s, locinput, ln)))
- sayNO;
- locinput += ln;
- nextchr = UCHARAT(locinput);
- break;
- case ANYOFUTF8:
- s = (char *) OPERAND(scan);
- if (!REGINCLASSUTF8(scan, (U8*)locinput))
- sayNO;
- if (locinput >= PL_regeol)
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- case ANYOF:
- s = (char *) OPERAND(scan);
- if (nextchr < 0)
- nextchr = UCHARAT(locinput);
- if (!REGINCLASS(s, nextchr))
- sayNO;
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALNUML:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALNUM:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == ALNUM
- ? isALNUM(nextchr) : isALNUM_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALNUMUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == ALNUMUTF8
- ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
- : isALNUM_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (!(OP(scan) == ALNUMUTF8
- ? isALNUM(nextchr) : isALNUM_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALNUML:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALNUM:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (OP(scan) == NALNUM
- ? isALNUM(nextchr) : isALNUM_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALNUMUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NALNUMUTF8
- ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
- : isALNUM_LC_utf8((U8*)locinput))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (OP(scan) == NALNUMUTF8
- ? isALNUM(nextchr) : isALNUM_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case BOUNDL:
- case NBOUNDL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case BOUND:
- case NBOUND:
- /* was last char in word? */
- ln = (locinput != PL_regbol) ? UCHARAT(locinput - 1) : PL_regprev;
- if (OP(scan) == BOUND || OP(scan) == NBOUND) {
- ln = isALNUM(ln);
- n = isALNUM(nextchr);
- }
- else {
- ln = isALNUM_LC(ln);
- n = isALNUM_LC(nextchr);
- }
- if (((!ln) == (!n)) == (OP(scan) == BOUND || OP(scan) == BOUNDL))
- sayNO;
- break;
- case BOUNDLUTF8:
- case NBOUNDLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case BOUNDUTF8:
- case NBOUNDUTF8:
- /* was last char in word? */
- ln = (locinput != PL_regbol)
- ? utf8_to_uv(reghop((U8*)locinput, -1), 0) : PL_regprev;
- if (OP(scan) == BOUNDUTF8 || OP(scan) == NBOUNDUTF8) {
- ln = isALNUM_uni(ln);
- n = swash_fetch(PL_utf8_alnum, (U8*)locinput);
- }
- else {
- ln = isALNUM_LC_uni(ln);
- n = isALNUM_LC_utf8((U8*)locinput);
- }
- if (((!ln) == (!n)) == (OP(scan) == BOUNDUTF8 || OP(scan) == BOUNDLUTF8))
- sayNO;
- break;
- case SPACEL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case SPACE:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (!(OP(scan) == SPACE
- ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case SPACELUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case SPACEUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == SPACEUTF8
- ? swash_fetch(PL_utf8_space,(U8*)locinput)
- : isSPACE_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (!(OP(scan) == SPACEUTF8
- ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NSPACEL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NSPACE:
- if (!nextchr)
- sayNO;
- if (OP(scan) == SPACE
- ? isSPACE(nextchr) : isSPACE_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NSPACELUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NSPACEUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NSPACEUTF8
- ? swash_fetch(PL_utf8_space,(U8*)locinput)
- : isSPACE_LC_utf8((U8*)locinput))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (OP(scan) == NSPACEUTF8
- ? isSPACE(nextchr) : isSPACE_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case DIGITL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case DIGIT:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (!(OP(scan) == DIGIT
- ? isDIGIT(nextchr) : isDIGIT_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case DIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case DIGITUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NDIGITUTF8
- ? swash_fetch(PL_utf8_digit,(U8*)locinput)
- : isDIGIT_LC_utf8((U8*)locinput))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (!isDIGIT(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NDIGITL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NDIGIT:
- if (!nextchr)
- sayNO;
- if (OP(scan) == DIGIT
- ? isDIGIT(nextchr) : isDIGIT_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NDIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NDIGITUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_digit,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (isDIGIT(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALNUMCL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALNUMC:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == ALNUMC
- ? isALNUMC(nextchr) : isALNUMC_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALNUMCLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALNUMCUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == ALNUMCUTF8
- ? swash_fetch(PL_utf8_alnumc, (U8*)locinput)
- : isALNUMC_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
+
+ if (!(SvTYPE(PL_reg_sv) >= SVt_PVMG && SvMAGIC(PL_reg_sv)
+ && (mg = mg_find(PL_reg_sv, 'g')))) {
+ /* prepare for quick setting of pos */
+ sv_magic(PL_reg_sv, (SV*)0, 'g', Nullch, 0);
+ mg = mg_find(PL_reg_sv, 'g');
+ mg->mg_len = -1;
}
- if (!(OP(scan) == ALNUMCUTF8
- ? isALNUMC(nextchr) : isALNUMC_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALNUMCL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALNUMC:
- if (!nextchr)
- sayNO;
- if (OP(scan) == ALNUMC
- ? isALNUMC(nextchr) : isALNUMC_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALNUMCLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALNUMCUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_alnumc,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
+ PL_reg_magic = mg;
+ PL_reg_oldpos = mg->mg_len;
+ SAVEDESTRUCTOR(restore_pos, 0);
+ }
+ if (!PL_reg_curpm)
+ New(22,PL_reg_curpm, 1, PMOP);
+ PL_reg_curpm->op_pmregexp = prog;
+ PL_reg_oldcurpm = PL_curpm;
+ PL_curpm = PL_reg_curpm;
+ if (RX_MATCH_COPIED(prog)) {
+ /* Here is a serious problem: we cannot rewrite subbeg,
+ since it may be needed if this match fails. Thus
+ $` inside (?{}) could fail... */
+ PL_reg_oldsaved = prog->subbeg;
+ PL_reg_oldsavedlen = prog->sublen;
+ RX_MATCH_COPIED_off(prog);
+ }
+ else
+ PL_reg_oldsaved = Nullch;
+ prog->subbeg = PL_bostr;
+ prog->sublen = PL_regeol - PL_bostr; /* strend may have been modified */
+ }
+ prog->startp[0] = startpos - PL_bostr;
+ PL_reginput = startpos;
+ PL_regstartp = prog->startp;
+ PL_regendp = prog->endp;
+ PL_reglastparen = &prog->lastparen;
+ prog->lastparen = 0;
+ PL_regsize = 0;
+ DEBUG_r(PL_reg_starttry = startpos);
+ if (PL_reg_start_tmpl <= prog->nparens) {
+ PL_reg_start_tmpl = prog->nparens*3/2 + 3;
+ if(PL_reg_start_tmp)
+ Renew(PL_reg_start_tmp, PL_reg_start_tmpl, char*);
+ else
+ New(22,PL_reg_start_tmp, PL_reg_start_tmpl, char*);
+ }
+
+ /* XXXX What this code is doing here?!!! There should be no need
+ to do this again and again, PL_reglastparen should take care of
+ this! */
+ sp = prog->startp;
+ ep = prog->endp;
+ if (prog->nparens) {
+ for (i = prog->nparens; i >= 1; i--) {
+ *++sp = -1;
+ *++ep = -1;
+ }
+ }
+ REGCP_SET;
+ if (regmatch(prog->program + 1)) {
+ prog->endp[0] = PL_reginput - PL_bostr;
+ return 1;
+ }
+ REGCP_UNWIND;
+ return 0;
+ }
+
+ /*
+ - regmatch - main matching routine
+ *
+ * Conceptually the strategy is simple: check to see whether the current
+ * node matches, call self recursively to see whether the rest matches,
+ * and then act accordingly. In practice we make some effort to avoid
+ * recursion, in particular by going through "ordinary" nodes (that don't
+ * need to know whether the rest of the match failed) by a loop instead of
+ * by recursion.
+ */
+ /* [lwall] I've hoisted the register declarations to the outer block in order to
+ * maybe save a little bit of pushing and popping on the stack. It also takes
+ * advantage of machines that use a register save mask on subroutine entry.
+ */
+ STATIC I32 /* 0 failure, 1 success */
+ S_regmatch(pTHX_ regnode *prog)
+ {
+ dTHR;
+ register regnode *scan; /* Current node. */
+ regnode *next; /* Next node. */
+ regnode *inner; /* Next node in internal branch. */
+ register I32 nextchr; /* renamed nextchr - nextchar colides with
+ function of same name */
+ register I32 n; /* no or next */
+ register I32 ln; /* len or last */
+ register char *s; /* operand or save */
+ register char *locinput = PL_reginput;
+ register I32 c1, c2, paren; /* case fold search, parenth */
+ int minmod = 0, sw = 0, logical = 0;
+ #ifdef DEBUGGING
+ PL_regindent++;
+ #endif
+
+ /* Note that nextchr is a byte even in UTF */
+ nextchr = UCHARAT(locinput);
+ scan = prog;
+ while (scan != NULL) {
+ #define sayNO_L (logical ? (logical = 0, sw = 0, goto cont) : sayNO)
+ #ifdef DEBUGGING
+ # define sayYES goto yes
+ # define sayNO goto no
+ # define saySAME(x) if (x) goto yes; else goto no
+ # define REPORT_CODE_OFF 24
+ #else
+ # define sayYES return 1
+ # define sayNO return 0
+ # define saySAME(x) return x
+ #endif
+ DEBUG_r( {
+ SV *prop = sv_newmortal();
+ int docolor = *PL_colors[0];
+ int taill = (docolor ? 10 : 7); /* 3 chars for "> <" */
+ int l = (PL_regeol - locinput > taill ? taill : PL_regeol - locinput);
+ /* The part of the string before starttry has one color
+ (pref0_len chars), between starttry and current
+ position another one (pref_len - pref0_len chars),
+ after the current position the third one.
+ We assume that pref0_len <= pref_len, otherwise we
+ decrease pref0_len. */
+ int pref_len = (locinput - PL_bostr > (5 + taill) - l
+ ? (5 + taill) - l : locinput - PL_bostr);
+ int pref0_len = pref_len - (locinput - PL_reg_starttry);
+
+ if (l + pref_len < (5 + taill) && l < PL_regeol - locinput)
+ l = ( PL_regeol - locinput > (5 + taill) - pref_len
+ ? (5 + taill) - pref_len : PL_regeol - locinput);
+ if (pref0_len < 0)
+ pref0_len = 0;
+ if (pref0_len > pref_len)
+ pref0_len = pref_len;
+ regprop(prop, scan);
+ PerlIO_printf(Perl_debug_log,
+ "%4i <%s%.*s%s%s%.*s%s%s%s%.*s%s>%*s|%3d:%*s%s\n",
+ locinput - PL_bostr,
+ PL_colors[4], pref0_len,
+ locinput - pref_len, PL_colors[5],
+ PL_colors[2], pref_len - pref0_len,
+ locinput - pref_len + pref0_len, PL_colors[3],
+ (docolor ? "" : "> <"),
+ PL_colors[0], l, locinput, PL_colors[1],
+ 15 - l - pref_len + 1,
+ "",
+ scan - PL_regprogram, PL_regindent*2, "",
+ SvPVX(prop));
+ } );
+
+ next = scan + NEXT_OFF(scan);
+ if (next == scan)
+ next = NULL;
+
+ switch (OP(scan)) {
+ case BOL:
+ if (locinput == PL_bostr
+ ? PL_regprev == '\n'
+ : (PL_multiline &&
+ (nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
+ {
+ /* regtill = regbol; */
break;
}
- if (isALNUMC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALPHAL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALPHA:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == ALPHA
- ? isALPHA(nextchr) : isALPHA_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALPHALUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALPHAUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == ALPHAUTF8
- ? swash_fetch(PL_utf8_alpha, (U8*)locinput)
- : isALPHA_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
+ sayNO;
+ case MBOL:
+ if (locinput == PL_bostr
+ ? PL_regprev == '\n'
+ : ((nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
+ {
break;
}
- if (!(OP(scan) == ALPHAUTF8
- ? isALPHA(nextchr) : isALPHA_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALPHAL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALPHA:
- if (!nextchr)
- sayNO;
- if (OP(scan) == ALPHA
- ? isALPHA(nextchr) : isALPHA_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALPHALUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALPHAUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_alpha,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
+ sayNO;
+ case SBOL:
+ if (locinput == PL_regbol && PL_regprev == '\n')
break;
- }
- if (isALPHA(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ASCII:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (!isASCII(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NASCII:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (isASCII(nextchr))
+ sayNO;
+ case GPOS:
+ if (locinput == PL_reg_ganch)
+ break;
+ sayNO;
+ case EOL:
+ if (PL_multiline)
+ goto meol;
+ else
+ goto seol;
+ case MEOL:
+ meol:
+ if ((nextchr || locinput < PL_regeol) && nextchr != '\n')
sayNO;
- nextchr = UCHARAT(++locinput);
break;
- case CNTRLL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case CNTRL:
- if (!nextchr)
+ case SEOL:
+ seol:
+ if ((nextchr || locinput < PL_regeol) && nextchr != '\n')
sayNO;
- if (!(OP(scan) == CNTRL
- ? isCNTRL(nextchr) : isCNTRL_LC(nextchr)))
+ if (PL_regeol - locinput > 1)
sayNO;
- nextchr = UCHARAT(++locinput);
break;
- case CNTRLLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case CNTRLUTF8:
- if (!nextchr)
+ case EOS:
+ if (PL_regeol != locinput)
sayNO;
+ break;
+ case SANYUTF8:
if (nextchr & 0x80) {
- if (!(OP(scan) == CNTRLUTF8
- ? swash_fetch(PL_utf8_cntrl, (U8*)locinput)
- : isCNTRL_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
locinput += PL_utf8skip[nextchr];
+ if (locinput > PL_regeol)
+ sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == CNTRLUTF8
- ? isCNTRL(nextchr) : isCNTRL_LC(nextchr)))
+ if (!nextchr && locinput >= PL_regeol)
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NCNTRLL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NCNTRL:
- if (!nextchr)
- sayNO;
- if (OP(scan) == CNTRL
- ? isCNTRL(nextchr) : isCNTRL_LC(nextchr))
+ case SANY:
+ if (!nextchr && locinput >= PL_regeol)
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NCNTRLLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NCNTRLUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
+ case ANYUTF8:
if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_cntrl,(U8*)locinput))
- sayNO;
locinput += PL_utf8skip[nextchr];
+ if (locinput > PL_regeol)
+ sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (isCNTRL(nextchr))
+ if (!nextchr && locinput >= PL_regeol || nextchr == '\n')
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case GRAPHL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case GRAPH:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == GRAPH
- ? isGRAPH(nextchr) : isGRAPH_LC(nextchr)))
+ case REG_ANY:
+ if (!nextchr && locinput >= PL_regeol || nextchr == '\n')
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case GRAPHLUTF8:
+ case EXACT:
+ s = (char *) OPERAND(scan);
+ ln = UCHARAT(s++);
+ /* Inline the first character, for speed. */
+ if (UCHARAT(s) != nextchr)
+ sayNO;
+ if (PL_regeol - locinput < ln)
+ sayNO;
+ if (ln > 1 && memNE(s, locinput, ln))
+ sayNO;
+ locinput += ln;
+ nextchr = UCHARAT(locinput);
+ break;
+ case EXACTFL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case GRAPHUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == GRAPHUTF8
- ? swash_fetch(PL_utf8_graph, (U8*)locinput)
- : isGRAPH_LC_utf8((U8*)locinput)))
- {
- sayNO;
+ case EXACTF:
+ s = (char *) OPERAND(scan);
+ ln = UCHARAT(s++);
+
+ if (UTF) {
+ char *l = locinput;
+ char *e = s + ln;
+ c1 = OP(scan) == EXACTF;
+ while (s < e) {
+ if (l >= PL_regeol)
+ sayNO;
+ if (utf8_to_uv((U8*)s, 0) != (c1 ?
+ toLOWER_utf8((U8*)l) :
+ toLOWER_LC_utf8((U8*)l)))
+ {
+ sayNO;
+ }
+ s += UTF8SKIP(s);
+ l += UTF8SKIP(l);
}
- locinput += PL_utf8skip[nextchr];
+ locinput = l;
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == GRAPHUTF8
- ? isGRAPH(nextchr) : isGRAPH_LC(nextchr)))
+
+ /* Inline the first character, for speed. */
+ if (UCHARAT(s) != nextchr &&
+ UCHARAT(s) != ((OP(scan) == EXACTF)
+ ? PL_fold : PL_fold_locale)[nextchr])
sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NGRAPHL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NGRAPH:
- if (!nextchr)
+ if (PL_regeol - locinput < ln)
sayNO;
- if (OP(scan) == GRAPH
- ? isGRAPH(nextchr) : isGRAPH_LC(nextchr))
+ if (ln > 1 && (OP(scan) == EXACTF
+ ? ibcmp(s, locinput, ln)
+ : ibcmp_locale(s, locinput, ln)))
sayNO;
- nextchr = UCHARAT(++locinput);
+ locinput += ln;
+ nextchr = UCHARAT(locinput);
break;
- case NGRAPHLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NGRAPHUTF8:
- if (!nextchr && locinput >= PL_regeol)
+ case ANYOFUTF8:
+ s = (char *) OPERAND(scan);
+ if (!REGINCLASSUTF8(scan, (U8*)locinput))
sayNO;
- if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_graph,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
+ if (locinput >= PL_regeol)
+ sayNO;
+ locinput += PL_utf8skip[nextchr];
+ nextchr = UCHARAT(locinput);
+ break;
+ case ANYOF:
+ s = (char *) OPERAND(scan);
+ if (nextchr < 0)
nextchr = UCHARAT(locinput);
- break;
- }
- if (isGRAPH(nextchr))
+ if (!REGINCLASS(s, nextchr))
+ sayNO;
+ if (!nextchr && locinput >= PL_regeol)
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case LOWERL:
+ case ALNUML:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case LOWER:
+ case ALNUM:
if (!nextchr)
sayNO;
- if (!(OP(scan) == LOWER
- ? isLOWER(nextchr) : isLOWER_LC(nextchr)))
+ if (!(OP(scan) == ALNUM
+ ? isALNUM(nextchr) : isALNUM_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case LOWERLUTF8:
+ case ALNUMLUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case LOWERUTF8:
+ case ALNUMUTF8:
if (!nextchr)
sayNO;
if (nextchr & 0x80) {
- if (!(OP(scan) == LOWERUTF8
- ? swash_fetch(PL_utf8_lower, (U8*)locinput)
- : isLOWER_LC_utf8((U8*)locinput)))
+ if (!(OP(scan) == ALNUMUTF8
+ ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
+ : isALNUM_LC_utf8((U8*)locinput)))
{
sayNO;
}
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == LOWERUTF8
- ? isLOWER(nextchr) : isLOWER_LC(nextchr)))
+ if (!(OP(scan) == ALNUMUTF8
+ ? isALNUM(nextchr) : isALNUM_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NLOWERL:
+ case NALNUML:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NLOWER:
- if (!nextchr)
+ case NALNUM:
+ if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (OP(scan) == LOWER
- ? isLOWER(nextchr) : isLOWER_LC(nextchr))
+ if (OP(scan) == NALNUM
+ ? isALNUM(nextchr) : isALNUM_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NLOWERLUTF8:
+ case NALNUMLUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NLOWERUTF8:
+ case NALNUMUTF8:
if (!nextchr && locinput >= PL_regeol)
sayNO;
if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_lower,(U8*)locinput))
+ if (OP(scan) == NALNUMUTF8
+ ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
+ : isALNUM_LC_utf8((U8*)locinput))
+ {
sayNO;
+ }
locinput += PL_utf8skip[nextchr];
nextchr = UCHARAT(locinput);
break;
}
- if (isLOWER(nextchr))
+ if (OP(scan) == NALNUMUTF8
+ ? isALNUM(nextchr) : isALNUM_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case PRINTL:
+ case BOUNDL:
+ case NBOUNDL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case PRINT:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == PRINT
- ? isPRINT(nextchr) : isPRINT_LC(nextchr)))
+ case BOUND:
+ case NBOUND:
+ /* was last char in word? */
+ ln = (locinput != PL_regbol) ? UCHARAT(locinput - 1) : PL_regprev;
+ if (OP(scan) == BOUND || OP(scan) == NBOUND) {
+ ln = isALNUM(ln);
+ n = isALNUM(nextchr);
+ }
+ else {
+ ln = isALNUM_LC(ln);
+ n = isALNUM_LC(nextchr);
+ }
+ if (((!ln) == (!n)) == (OP(scan) == BOUND || OP(scan) == BOUNDL))
sayNO;
- nextchr = UCHARAT(++locinput);
break;
- case PRINTLUTF8:
+ case BOUNDLUTF8:
+ case NBOUNDLUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case PRINTUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == PRINTUTF8
- ? swash_fetch(PL_utf8_print, (U8*)locinput)
- : isPRINT_LC_utf8((U8*)locinput)))
- {
- sayNO;
- }
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
+ case BOUNDUTF8:
+ case NBOUNDUTF8:
+ /* was last char in word? */
+ ln = (locinput != PL_regbol)
+ ? utf8_to_uv(reghop((U8*)locinput, -1), 0) : PL_regprev;
+ if (OP(scan) == BOUNDUTF8 || OP(scan) == NBOUNDUTF8) {
+ ln = isALNUM_uni(ln);
+ n = swash_fetch(PL_utf8_alnum, (U8*)locinput);
}
- if (!(OP(scan) == PRINTUTF8
- ? isPRINT(nextchr) : isPRINT_LC(nextchr)))
+ else {
+ ln = isALNUM_LC_uni(ln);
+ n = isALNUM_LC_utf8((U8*)locinput);
+ }
+ if (((!ln) == (!n)) == (OP(scan) == BOUNDUTF8 || OP(scan) == BOUNDLUTF8))
sayNO;
- nextchr = UCHARAT(++locinput);
break;
- case NPRINTL:
+ case SPACEL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NPRINT:
- if (!nextchr)
+ case SPACE:
+ if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (OP(scan) == PRINT
- ? isPRINT(nextchr) : isPRINT_LC(nextchr))
+ if (!(OP(scan) == SPACE
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NPRINTLUTF8:
+ case SPACELUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NPRINTUTF8:
+ case SPACEUTF8:
if (!nextchr && locinput >= PL_regeol)
sayNO;
if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_print,(U8*)locinput))
+ if (!(OP(scan) == SPACEUTF8
+ ? swash_fetch(PL_utf8_space,(U8*)locinput)
+ : isSPACE_LC_utf8((U8*)locinput)))
+ {
sayNO;
+ }
locinput += PL_utf8skip[nextchr];
nextchr = UCHARAT(locinput);
break;
}
- if (isPRINT(nextchr))
+ if (!(OP(scan) == SPACEUTF8
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case PUNCTL:
+ case NSPACEL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case PUNCT:
+ case NSPACE:
if (!nextchr)
sayNO;
- if (!(OP(scan) == PUNCT
- ? isPUNCT(nextchr) : isPUNCT_LC(nextchr)))
+ if (OP(scan) == SPACE
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case PUNCTLUTF8:
+ case NSPACELUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case PUNCTUTF8:
+ case NSPACEUTF8:
if (!nextchr)
sayNO;
if (nextchr & 0x80) {
- if (!(OP(scan) == PUNCTUTF8
- ? swash_fetch(PL_utf8_punct, (U8*)locinput)
- : isPUNCT_LC_utf8((U8*)locinput)))
+ if (OP(scan) == NSPACEUTF8
+ ? swash_fetch(PL_utf8_space,(U8*)locinput)
+ : isSPACE_LC_utf8((U8*)locinput))
{
sayNO;
}
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == PUNCTUTF8
- ? isPUNCT(nextchr) : isPUNCT_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NPUNCTL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NPUNCT:
- if (!nextchr)
- sayNO;
- if (OP(scan) == PUNCT
- ? isPUNCT(nextchr) : isPUNCT_LC(nextchr))
+ if (OP(scan) == NSPACEUTF8
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NPUNCTLUTF8:
+ case DIGITL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NPUNCTUTF8:
+ case DIGIT:
if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_punct,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
- }
- if (isPUNCT(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case UPPERL:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case UPPER:
- if (!nextchr)
- sayNO;
- if (!(OP(scan) == UPPER
- ? isUPPER(nextchr) : isUPPER_LC(nextchr)))
+ if (!(OP(scan) == DIGIT
+ ? isDIGIT(nextchr) : isDIGIT_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case UPPERLUTF8:
+ case DIGITLUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case UPPERUTF8:
+ case DIGITUTF8:
if (!nextchr)
sayNO;
if (nextchr & 0x80) {
- if (!(OP(scan) == UPPERUTF8
- ? swash_fetch(PL_utf8_upper, (U8*)locinput)
- : isUPPER_LC_utf8((U8*)locinput)))
+ if (OP(scan) == NDIGITUTF8
+ ? swash_fetch(PL_utf8_digit,(U8*)locinput)
+ : isDIGIT_LC_utf8((U8*)locinput))
{
sayNO;
}
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == UPPERUTF8
- ? isUPPER(nextchr) : isUPPER_LC(nextchr)))
+ if (!isDIGIT(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NUPPERL:
+ case NDIGITL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NUPPER:
+ case NDIGIT:
if (!nextchr)
sayNO;
- if (OP(scan) == UPPER
- ? isUPPER(nextchr) : isUPPER_LC(nextchr))
+ if (OP(scan) == DIGIT
+ ? isDIGIT(nextchr) : isDIGIT_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case NUPPERLUTF8:
+ case NDIGITLUTF8:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NUPPERUTF8:
+ case NDIGITUTF8:
if (!nextchr && locinput >= PL_regeol)
sayNO;
if (nextchr & 0x80) {
- if (swash_fetch(PL_utf8_upper,(U8*)locinput))
+ if (swash_fetch(PL_utf8_digit,(U8*)locinput))
sayNO;
locinput += PL_utf8skip[nextchr];
nextchr = UCHARAT(locinput);
break;
}
- if (isUPPER(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case XDIGIT:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (!isXDIGIT(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NXDIGIT:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (isXDIGIT(nextchr))
+ if (isDIGIT(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
case REFF:
n = ARG(scan); /* which paren pair */
ln = PL_regstartp[n];
+ PL_reg_leftiter = PL_reg_maxiter; /* Void cache */
if (*PL_reglastparen < n || ln == -1)
sayNO; /* Do not match unless seen CLOSEn. */
if (ln == PL_regendp[n])
*PL_reglastparen = 0;
PL_reg_call_cc = &state;
PL_reginput = locinput;
+
+ /* XXXX This is too dramatic a measure... */
+ PL_reg_maxiter = 0;
+
if (regmatch(re->program + 1)) {
ReREFCNT_dec(re);
regcpblow(cp);
PL_regcc = state.cc;
PL_reg_re = state.re;
cache_re(PL_reg_re);
+
+ /* XXXX This is too dramatic a measure... */
+ PL_reg_maxiter = 0;
+
sayNO;
}
sw = SvTRUE(ret);
sw = (*PL_reglastparen >= n && PL_regendp[n] != -1);
break;
case IFTHEN:
+ PL_reg_leftiter = PL_reg_maxiter; /* Void cache */
if (sw)
next = NEXTOPER(NEXTOPER(scan));
else {
/*
* This is really hard to understand, because after we match
* what we're trying to match, we must make sure the rest of
- * the RE is going to match for sure, and to do that we have
+ * the REx is going to match for sure, and to do that we have
* to go back UP the parse tree by recursing ever deeper. And
* if it fails, we have to reset our parent's current state
* that we can try again after backing off.
sayNO;
}
+ if (scan->flags) {
+ /* Check whether we already were at this position.
+ Postpone detection until we know the match is not
+ *that* much linear. */
+ if (!PL_reg_maxiter) {
+ PL_reg_maxiter = (PL_regeol - PL_bostr + 1) * (scan->flags>>4);
+ PL_reg_leftiter = PL_reg_maxiter;
+ }
+ if (PL_reg_leftiter-- == 0) {
+ I32 size = (PL_reg_maxiter + 7)/8;
+ if (PL_reg_poscache) {
+ if (PL_reg_poscache_size < size) {
+ Renew(PL_reg_poscache, size, char);
+ PL_reg_poscache_size = size;
+ }
+ Zero(PL_reg_poscache, size, char);
+ }
+ else {
+ PL_reg_poscache_size = size;
+ Newz(29, PL_reg_poscache, size, char);
+ }
+ DEBUG_r(
+ PerlIO_printf(Perl_debug_log,
+ "%sDetected a super-linear match, switching on caching%s...\n",
+ PL_colors[4], PL_colors[5])
+ );
+ }
+ if (PL_reg_leftiter < 0) {
+ I32 o = locinput - PL_bostr, b;
+
+ o = (scan->flags & 0xf) - 1 + o * (scan->flags>>4);
+ b = o % 8;
+ o /= 8;
+ if (PL_reg_poscache[o] & (1<<b)) {
+ DEBUG_r(
+ PerlIO_printf(Perl_debug_log,
+ "%*s already tried at this position...\n",
+ REPORT_CODE_OFF+PL_regindent*2, "")
+ );
+ sayNO;
+ }
+ PL_reg_poscache[o] |= (1<<b);
+ }
+ }
+
/* Prefer next over scan for minimal matching. */
if (cc->minmod) {
projects / p5sagit/p5-mst-13.2.git / commitdiff