external/webkit r30707

1 files changed, 264 insertions, 0 deletions

diff --git a/JavaScriptCore/pcre/dftables b/JavaScriptCore/pcre/dftables
new file mode 100755
index 0000000..fbd51e6
--- /dev/null
+++ b/JavaScriptCore/pcre/dftables
@@ -0,0 +1,264 @@
+#!/usr/bin/perl -w
+#
+# This is JavaScriptCore's variant of the PCRE library. While this library
+# started out as a copy of PCRE, many of the features of PCRE have been
+# removed. This library now supports only the regular expression features
+# required by the JavaScript language specification, and has only the functions
+# needed by JavaScriptCore and the rest of WebKit.
+# 
+#                  Originally written by Philip Hazel
+#            Copyright (c) 1997-2006 University of Cambridge
+#  Copyright (C) 2002, 2004, 2006, 2007, 2008 Apple Inc.  All rights reserved.
+# 
+# -----------------------------------------------------------------------------
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# 
+#     * Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+# 
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+# 
+#     * Neither the name of the University of Cambridge nor the names of its
+#       contributors may be used to endorse or promote products derived from
+#       this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# -----------------------------------------------------------------------------
+
+# This is a freestanding support program to generate a file containing
+# character tables. The tables are built according to the default C
+# locale.
+
+use strict;
+
+use File::Basename;
+use File::Spec;
+use File::Temp;
+
+sub readHeaderValues();
+
+my %pcre_internal;
+
+if (scalar(@ARGV) != 1) {
+    print STDERR "Usage: ", basename($0), " output-file\n";
+    exit 1;
+}
+
+my $outputFile = shift @ARGV;
+
+readHeaderValues();
+
+open(OUT, ">", $outputFile) or die "$!";
+binmode(OUT);
+
+printf(OUT
+    "/*************************************************\n" .
+    "*      Perl-Compatible Regular Expressions       *\n" .
+    "*************************************************/\n\n" .
+    "/* This file is automatically written by the dftables auxiliary \n" .
+    "program. If you edit it by hand, you might like to edit the Makefile to \n" .
+    "prevent its ever being regenerated.\n\n");
+printf(OUT
+    "This file contains the default tables for characters with codes less than\n" .
+    "128 (ASCII characters). These tables are used when no external tables are\n" .
+    "passed to PCRE. */\n\n" .
+    "const unsigned char kjs_pcre_default_tables[%d] = {\n\n" .
+    "/* This table is a lower casing table. */\n\n", $pcre_internal{tables_length});
+
+if ($pcre_internal{lcc_offset} != 0) {
+    die "lcc_offset != 0";
+}
+
+printf(OUT "  ");
+for (my $i = 0; $i < 128; $i++) {
+    if (($i & 7) == 0 && $i != 0) {
+        printf(OUT "\n  ");
+    }
+    printf(OUT "0x%02X", ord(lc(chr($i))));
+    if ($i != 127) {
+        printf(OUT ", ");
+    }
+}
+printf(OUT ",\n\n");
+
+printf(OUT "/* This table is a case flipping table. */\n\n");
+
+if ($pcre_internal{fcc_offset} != 128) {
+  die "fcc_offset != 128";
+}
+
+printf(OUT "  ");
+for (my $i = 0; $i < 128; $i++) {
+    if (($i & 7) == 0 && $i != 0) {
+        printf(OUT "\n  ");
+    }
+    my $c = chr($i);
+    printf(OUT "0x%02X", $c =~ /[[:lower:]]/ ? ord(uc($c)) : ord(lc($c)));
+    if ($i != 127) {
+        printf(OUT ", ");
+    }
+}
+printf(OUT ",\n\n");
+
+printf(OUT
+    "/* This table contains bit maps for various character classes.\n" .
+    "Each map is 32 bytes long and the bits run from the least\n" .
+    "significant end of each byte. The classes are: space, digit, word. */\n\n");
+
+if ($pcre_internal{cbits_offset} != $pcre_internal{fcc_offset} + 128) {
+    die "cbits_offset != fcc_offset + 128";
+}
+
+my @cbit_table = (0) x $pcre_internal{cbit_length};
+for (my $i = ord('0'); $i <= ord('9'); $i++) {
+    $cbit_table[$pcre_internal{cbit_digit} + $i / 8] |= 1 << ($i & 7);
+}
+$cbit_table[$pcre_internal{cbit_word} + ord('_') / 8] |= 1 << (ord('_') & 7);
+for (my $i = 0; $i < 128; $i++) {
+    my $c = chr($i);
+    if ($c =~ /[[:alnum:]]/) {
+        $cbit_table[$pcre_internal{cbit_word} + $i / 8] |= 1 << ($i & 7);
+    }
+    if ($c =~ /[[:space:]]/) {
+        $cbit_table[$pcre_internal{cbit_space} + $i / 8] |= 1 << ($i & 7);
+    }
+}
+
+printf(OUT "  ");
+for (my $i = 0; $i < $pcre_internal{cbit_length}; $i++) {
+    if (($i & 7) == 0 && $i != 0) {
+        if (($i & 31) == 0) {
+            printf(OUT "\n");
+        }
+        printf(OUT "\n  ");
+    }
+    printf(OUT "0x%02X", $cbit_table[$i]);
+    if ($i != $pcre_internal{cbit_length} - 1) {
+        printf(OUT ", ");
+    }
+}
+printf(OUT ",\n\n");
+
+printf(OUT
+    "/* This table identifies various classes of character by individual bits:\n" .
+    "  0x%02x   white space character\n" .
+    "  0x%02x   hexadecimal digit\n" .
+    "  0x%02x   alphanumeric or '_'\n*/\n\n",
+    $pcre_internal{ctype_space}, $pcre_internal{ctype_xdigit}, $pcre_internal{ctype_word});
+
+if ($pcre_internal{ctypes_offset} != $pcre_internal{cbits_offset} + $pcre_internal{cbit_length}) {
+    die "ctypes_offset != cbits_offset + cbit_length";
+}
+
+printf(OUT "  ");
+for (my $i = 0; $i < 128; $i++) {
+    my $x = 0;
+    my $c = chr($i);
+    if ($c =~ /[[:space:]]/) {
+        $x += $pcre_internal{ctype_space};
+    }
+    if ($c =~ /[[:xdigit:]]/) {
+        $x += $pcre_internal{ctype_xdigit};
+    }
+    if ($c =~ /[[:alnum:]_]/) {
+        $x += $pcre_internal{ctype_word};
+    }
+    printf(OUT "0x%02X", $x);
+    if ($i != 127) {
+        printf(OUT ", ");
+    } else {
+        printf(OUT "};");
+    }
+    if (($i & 7) == 7) {
+        printf(OUT " /* ");
+        my $d = chr($i - 7);
+        if ($d =~ /[[:print:]]/) {
+            printf(OUT " %c -", $i - 7);
+        } else {
+            printf(OUT "%3d-", $i - 7);
+        }
+        if ($c =~ m/[[:print:]]/) {
+            printf(OUT " %c ", $i);
+        } else {
+            printf(OUT "%3d", $i);
+        }
+        printf(OUT " */\n");
+        if ($i != 127) {
+            printf(OUT "  ");
+        }
+    }
+}
+
+if ($pcre_internal{tables_length} != $pcre_internal{ctypes_offset} + 128) {
+    die "tables_length != ctypes_offset + 128";
+}
+
+printf(OUT "\n\n/* End of chartables.c */\n");
+
+close(OUT);
+
+exit 0;
+
+sub readHeaderValues()
+{
+    my @variables = qw(
+        cbit_digit
+        cbit_length
+        cbit_space
+        cbit_word
+        cbits_offset
+        ctype_space
+        ctype_word
+        ctype_xdigit
+        ctypes_offset
+        fcc_offset
+        lcc_offset
+        tables_length
+    );
+
+    local $/ = undef;
+
+    my $headerPath = File::Spec->catfile(dirname($0), "pcre_internal.h");
+
+    my $fh = new File::Temp(
+        DIR => ($ENV{'TMPDIR'} || "/tmp"),
+        SUFFIX => ".in",
+        TEMPLATE => basename($0) . "-XXXXXXXX",
+        UNLINK => 0,
+    );
+    my $tempFile = $fh->filename();
+
+    print $fh "#define DFTABLES\n\n";
+
+    open(HEADER, "<", $headerPath) or die "$!";
+    print $fh <HEADER>;
+    close(HEADER);
+
+    print $fh "\n\n";
+
+    for my $v (@variables) {
+        print $fh "\$pcre_internal{\"$v\"} = $v;\n";
+    }
+
+    close($fh);
+
+    open(CPP, "cpp '$tempFile' |") or die "$!";
+    my $content = <CPP>;
+    close(CPP);
+
+    eval $content;
+    die "$@" if $@;
+}