Admin/fixencoding
author paulson
Mon, 05 May 1997 12:15:20 +0200
changeset 3101 e8a92f497295
parent 2966 09e87e779b7d
child 4499 4ca67338e22c
permissions -rwxr-xr-x
Again "norm" DOES NOT normalize bodies of abstractions Showterm (used for tracing) now follows variable instantiations (in order to make up for the "norm" change)
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#!/usr/local/dist/bin/perl -w
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#
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# $Id$
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#
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# fixencoding - fix references to isabelle font encoding
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## global settings
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$prgname = "fixencoding";
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$enc_file = "Distribution/lib/encodings/isabelle-0";
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## diagnostics
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sub warn {
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    print STDERR $_[0], "\n";
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}
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sub fail {
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    &warn("$prgname: " . $_[0]);
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    exit 2;
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}
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## utils
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sub read_encoding {
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    local($file) = $_[0];
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    local($current, $line) = (-1, 0);
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    # scan file
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    open (FILE, $file) || die $!;
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    while (<FILE>) {
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	$line++;
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	s/#.*$//;
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	s/\s//g;
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	next if !$_;
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	if (m/^(\d+):(.*)$/) {
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	    $current = $1;
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	    $_ = $2;
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	}
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	next if !$_;
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	if ($current < 0) {
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	    &fail("Malformed encoding file \"$file\", line $line");
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	}
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	if ($enc_first < 0 || $enc_first > $current) {
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	    $enc_first = $current;
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	}
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	if ($enc_last < 0 || $enc_last < $current) {
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	    $enc_last = $current;
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	}
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	$enc_tab[$current] = $_;
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	$current++;
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    }
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    close FILE;
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    # fill gaps
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    if ($enc_first < 0 || $enc_last < 0) {
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	&fail("Empty encoding file \"$file\"");
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    }
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    for ($current = $enc_first; $current <= $enc_last; $current++) {
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	if (!$enc_tab[$current]) {
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	    &warn("position $current undefined");
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	    $enc_tab[$current] = "undef$current";
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	}
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    }
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}
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sub patch_file {
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    local($file, $text) = @_;
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    open(INFILE, $file) || die $!;
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    open(OUTFILE, ">$file~") || die $!;
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    while (<INFILE>) {
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	print OUTFILE;
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	last if m/GENERATED TEXT FOLLOWS/;
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    }
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    print OUTFILE $text;
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    while (<INFILE>) {
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	next if !m/END OF GENERATED TEXT/;
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	print OUTFILE;
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	last;
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    }
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    while (<INFILE>) {
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	print OUTFILE;
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    }
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    close(INFILE);
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    close(OUTFILE);
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    unlink($file) || die $!;
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    rename("$file~", $file) || die $!;
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}
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## main
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# read encoding file
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$enc_first = -1;
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$enc_last = -1;
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@enc_tab = ();
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&read_encoding($enc_file);
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# make tables
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for ($current = $enc_first; $current <= $enc_last; $current++) {
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    push(@ml_tab, '"' . $enc_tab[$current] . '"');
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    push(@perl_tab, sprintf('"\\x%2x", "\\\\<%s>"', $current, $enc_tab[$current]));
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    push(@perl_revtab, sprintf('"\\\\<%s>", "\\x%2x"', $enc_tab[$current], $current));
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}
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$ml_tab = "  " . join(",\n  ", @ml_tab) . "\n";
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$perl_tab = "  " . join(",\n  ", @perl_tab) . "\n";
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$perl_revtab = "  " . join(",\n  ", @perl_revtab) . "\n";
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# patch files
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&patch_file("Pure/Syntax/symbol_font.ML", $ml_tab);
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&patch_file("Distribution/lib/scripts/symbolinput.pl", $perl_tab);