Gcc 3.4.2 20040728.

1 files changed, 130 insertions, 0 deletions

diff --git a/contrib/gcc/cppucnid.pl b/contrib/gcc/cppucnid.pl
new file mode 100644
index 0000000..eb8bbca
--- /dev/null
+++ b/contrib/gcc/cppucnid.pl
@@ -0,0 +1,130 @@
+#! /usr/bin/perl -w
+use strict;
+
+# Convert cppucnid.tab to cppucnid.h.  We use two arrays of length
+# 65536 to represent the table, since this is nice and simple.  The
+# first array holds the tags indicating which ranges are valid in
+# which contexts.  The second array holds the language name associated
+# with each element.
+
+our(@tags, @names);
+@tags = ("") x 65536;
+@names = ("") x 65536;
+
+
+# Array mapping tag numbers to standard #defines
+our @stds;
+
+# Current standard and language
+our($curstd, $curlang);
+
+# First block of the file is a template to be saved for later.
+our @template;
+
+while (<>) {
+    chomp;
+    last if $_ eq '%%';
+    push @template, $_;
+};
+
+# Second block of the file is the UCN tables.
+# The format looks like this:
+#
+# [std]
+#
+# ; language
+# xxxx-xxxx xxxx xxxx-xxxx ....
+#
+# with comment lines starting with #.
+
+while (<>) {
+    chomp;
+    /^#/ and next;
+    /^\s*$/ and next;
+    /^\[(.+)\]$/ and do {
+	$curstd = $1;
+ 	next;
+    };
+    /^; (.+)$/ and do {
+	$curlang = $1;
+	next;
+    };
+
+    process_range(split);
+}
+
+# Print out the template, inserting as requested.
+$\ = "\n";
+for (@template) {
+    print("/* Automatically generated from cppucnid.tab, do not edit */"),
+        next if $_ eq "[dne]";
+    print_table(), next if $_ eq "[table]";
+    print;
+}
+
+sub print_table {
+    my($lo, $hi);
+    my $prevname = "";
+
+    for ($lo = 0; $lo <= $#tags; $lo = $hi) {
+	$hi = $lo;
+	$hi++ while $hi <= $#tags
+	    && $tags[$hi] eq $tags[$lo]
+	    && $names[$hi] eq $names[$lo];
+
+	# Range from $lo to $hi-1.
+	# Don't make entries for ranges that are not valid idchars.
+	next if ($tags[$lo] eq "");
+	my $tag = $tags[$lo];
+        $tag = "    ".$tag if $tag =~ /^C99/;
+
+	if ($names[$lo] eq $prevname) {
+	    printf("  { 0x%04x, 0x%04x, %-11s },\n",
+		   $lo, $hi-1, $tag);
+	} else {
+	    printf("  { 0x%04x, 0x%04x, %-11s },  /* %s */\n",
+		   $lo, $hi-1, $tag, $names[$lo]);
+	}
+	$prevname = $names[$lo];
+    }
+}
+
+# The line is a list of four-digit hexadecimal numbers or
+# pairs of such numbers.  Each is a valid identifier character
+# from the given language, under the given standard.
+sub process_range {
+    for my $range (@_) {
+	if ($range =~ /^[0-9a-f]{4}$/) {
+	    my $i = hex($range);
+	    if ($tags[$i] eq "") {
+		$tags[$i] = $curstd;
+	    } else {
+		$tags[$i] = $curstd . "|" . $tags[$i];
+	    }
+	    if ($names[$i] ne "" && $names[$i] ne $curlang) {
+		warn sprintf ("language overlap: %s/%s at %x (tag %d)",
+			      $names[$i], $curlang, $i, $tags[$i]);
+		next;
+	    }
+	    $names[$i] = $curlang;
+	} elsif ($range =~ /^ ([0-9a-f]{4}) - ([0-9a-f]{4}) $/x) {
+	    my ($start, $end) = (hex($1), hex($2));
+	    my $i;
+	    for ($i = $start; $i <= $end; $i++) {
+		if ($tags[$i] eq "") {
+		    $tags[$i] = $curstd;
+		} else {
+		    $tags[$i] = $curstd . "|" . $tags[$i];
+		}
+		if ($names[$i] ne "" && $names[$i] ne $curlang) {
+		    warn sprintf ("language overlap: %s/%s at %x (tag %d)",
+				  $names[$i], $curlang, $i, $tags[$i]);
+		    next;
+		}
+		$names[$i] = $curlang;
+	    }
+	} else {
+	    warn "malformed range expression $range";
+	}
+    }
+}