[glib/wip/unicode-7.0: 2/4] unicode: Move gscripttable.h generation into main script

[Christian Persch <chpe src gnome org>]

commit 0984ae890d909f82d431efb69821f810b363d238
Author: Christian Persch <chpe gnome org>
Date:   Sat May 3 18:49:07 2014 +0200

    unicode: Move gscripttable.h generation into main script
    
    So we just have to run one script when updating the unicode data, not two.

 glib/gen-script-table.pl   |  119 ----------------------------------------
 glib/gen-unicode-tables.pl |  129 ++++++++++++++++++++++++++++++++++++++++++-
 glib/gscripttable.h        |   14 +++---
 3 files changed, 133 insertions(+), 129 deletions(-)
---
diff --git a/glib/gen-unicode-tables.pl b/glib/gen-unicode-tables.pl
index e6520b8..46c4b27 100755
--- a/glib/gen-unicode-tables.pl
+++ b/glib/gen-unicode-tables.pl
@@ -161,12 +161,17 @@ my @special_cases;
 my @special_case_offsets;
 my $special_case_offset = 0;
 
+# Scripts
+
+my @scripts;
+
 # East asian widths
 
 my @eawidths;
 
 $do_decomp = 0;
 $do_props = 1;
+$do_scripts = 1;
 if (@ARGV && $ARGV[0] eq '-decomp')
 {
     $do_decomp = 1;
@@ -181,11 +186,11 @@ elsif (@ARGV && $ARGV[0] eq '-both')
 
 if (@ARGV != 2) {
     $0 =~ s  */@@;
-    die "\nUsage: $0 [-decomp | -both] UNICODE-VERSION DIRECTORY\n\n       DIRECTORY should contain the 
following Unicode data files:\n       UnicodeData.txt, LineBreak.txt, SpecialCasing.txt, CaseFolding.txt,\n   
    CompositionExclusions.txt extracted/DerivedEastAsianWidth.txt \n\n";
+    die "\nUsage: $0 [-decomp | -both] UNICODE-VERSION DIRECTORY\n\n       DIRECTORY should contain the 
following Unicode data files:\n       UnicodeData.txt, LineBreak.txt, SpecialCasing.txt, CaseFolding.txt,\n   
    CompositionExclusions.txt Scripts.txt extracted/DerivedEastAsianWidth.txt \n\n";
 }
 
 my ($unicodedatatxt, $linebreaktxt, $specialcasingtxt, $casefoldingtxt, $compositionexclusionstxt,
-    $derivedeastasianwidth);
+    $scriptstxt, $derivedeastasianwidth);
 
 my $d = $ARGV[1];
 opendir (my $dir, $d) or die "Cannot open Unicode data dir $d: $!\n";
@@ -196,6 +201,7 @@ for my $f (readdir ($dir))
     $specialcasingtxt = "$d/$f" if ($f =~ /^SpecialCasing.*\.txt/);
     $casefoldingtxt = "$d/$f" if ($f =~ /^CaseFolding.*\.txt/);
     $compositionexclusionstxt = "$d/$f" if ($f =~ /^CompositionExclusions.*\.txt/);
+    $scriptstxt = "$d/$f" if ($f =~ /^Scripts.*\.txt/);
 }
 
 my $extd = $ARGV[1] . "/extracted";
@@ -210,6 +216,7 @@ defined $linebreaktxt or die "Did not find LineBreak file";
 defined $specialcasingtxt or die "Did not find SpecialCasing file";
 defined $casefoldingtxt or die "Did not find CaseFolding file";
 defined $compositionexclusionstxt or die "Did not find CompositionExclusions file";
+defined $scriptstxt or die "Did not find Scripts file";
 defined $derivedeastasianwidthtxt or die "Did not find DerivedEastAsianWidth file";
 
 print "Creating decomp table\n" if ($do_decomp);
@@ -502,6 +509,26 @@ while (<INPUT>)
 
 close INPUT;
 
+print "Reading scripts\n";
+
+open (INPUT, "< $scriptstxt") || exit 1;
+
+while (<INPUT>) {
+    s/#.*//;
+    next if /^\s*$/;
+    if (!/^([0-9A-F]+)(?:\.\.([0-9A-F]+))?\s*;\s*([A-Za-z_]+)\s*$/) {
+       die "Cannot parse line: '$_'\n";
+    }
+
+    if (defined $2) {
+       push @scripts, [ hex $1, hex $2, uc $3 ];
+    } else {
+       push @scripts, [ hex $1, hex $1, uc $3 ];
+    }
+}
+
+close INPUT;
+
 print "Reading derived east asian widths\n";
 
 open (INPUT, "< $derivedeastasianwidthtxt") || exit 1;
@@ -534,9 +561,12 @@ if ($do_decomp) {
     &print_decomp ($last_code);
     &output_composition_table;
 }
-
 &print_line_break ($last_code);
 
+if ($do_scripts) {
+    &print_scripts
+}
+
 exit 0;
 
 
@@ -1427,3 +1457,96 @@ EOT
     &output_one_width_table ($out,"wide", "[FW]");
     &output_one_width_table ($out, "ambiguous", "[A]");
 }
+
+sub print_scripts
+{
+    my $start;
+    my $end;
+    my $script;
+    my $easy_range;
+    my $i;
+
+    print STDERR "Writing gscripttable.h\n";
+
+    open OUT, ">gscripttable.h" or die "Cannot open gscripttable.h: $!\n";
+
+    print OUT<<EOT;
+/* This file is automatically generated.  DO NOT EDIT!
+   Instead, edit gen-unicode-tables.pl and re-run.  */
+
+#ifndef SCRIPTTABLES_H
+#define SCRIPTTABLES_H
+
+EOT
+
+    @scripts = sort { $a->[0] <=> $b->[0] } @scripts;
+
+    $easy_range = 0x2000;
+
+    print OUT<<EOT;
+#define G_EASY_SCRIPTS_RANGE $easy_range
+
+static const guchar g_script_easy_table[$easy_range] = {
+EOT
+        
+    $i = 0;
+    $end = -1;
+
+    for (my $c = 0; $c < $easy_range; $c++) {
+
+        if ($c % 3 == 0) {
+            printf OUT "\n ";
+        }
+
+        if ($c > $end) {
+            $start = $scripts[$i]->[0];
+            $end = $scripts[$i]->[1];
+            $script = $scripts[$i]->[2];
+            $i++;
+        }
+            
+        if ($c < $start) {
+            printf OUT " G_UNICODE_SCRIPT_UNKNOWN,";
+        } else {
+            printf OUT " G_UNICODE_SCRIPT_%s,", $script;
+        }
+    }
+
+    if ($end >= $easy_range) {
+        $i--;
+        $scripts[$i]->[0] = $easy_range;
+    }
+
+    print OUT<<EOT;
+
+};
+
+static const struct {
+    gunichar    start;
+    guint16     chars;
+    guint16     script;
+} g_script_table[] = { 
+EOT
+
+    for (; $i <= $#scripts; $i++) {
+        $start = $scripts[$i]->[0];
+        $end = $scripts[$i]->[1];
+        $script = $scripts[$i]->[2];
+
+        while ($i <= $#scripts - 1 &&
+               $scripts[$i + 1]->[0] == $end + 1 &&
+               $scripts[$i + 1]->[2] eq $script) {
+            $i++;
+            $end = $scripts[$i]->[1];
+        }
+        printf OUT " { %#06x, %5d, G_UNICODE_SCRIPT_%s },\n", $start, $end - $start + 1, $script;
+    }
+
+    printf OUT<<EOT;
+};
+
+#endif /* SCRIPTTABLES_H */
+EOT
+
+    close OUT;
+}
diff --git a/glib/gscripttable.h b/glib/gscripttable.h
index e195409..b4166d5 100644
--- a/glib/gscripttable.h
+++ b/glib/gscripttable.h
@@ -1,10 +1,8 @@
-/* gscripttable.h: Generated by gen-script-table.pl
- *
- *  Date: Tue Oct  1 13:39:25 2013
- *  Source: Scripts-6.3.0.txt
- *
- * Do not edit.
- */
+/* This file is automatically generated.  DO NOT EDIT!
+   Instead, edit gen-unicode-tables.pl and re-run.  */
+
+#ifndef SCRIPTTABLES_H
+#define SCRIPTTABLES_H
 
 #define G_EASY_SCRIPTS_RANGE 8192
 
@@ -3119,3 +3117,5 @@ static const struct {
  { 0xe0020,    96, G_UNICODE_SCRIPT_COMMON },
  { 0xe0100,   240, G_UNICODE_SCRIPT_INHERITED },
 };
+
+#endif /* SCRIPTTABLES_H */