Generate char-script-table from Unicode source. (Bug#20789)

* admin/unidata/Makefile.in (AWK): New, set by configure.
(all): Add charscript.el.
(blocks): New variable.
(charscript.el, ${unidir}/charscript.el): New targets.
(extraclean): Also remove generated charscript.el.

* admin/unidata/blocks.awk: New script.

* admin/unidata/Blocks.txt: New data file, from unicode.org.

* lisp/international/characters.el: Load charscript.

* src/Makefile.in (charscript): New variable.
(${charscript}): New target.
(${lispintdir}/characters.elc): Depend on charscript.elc.
(temacs$(EXEEXT)): Depend on charscript.

; * admin/unidata/README: Mention Blocks.txt.

; * .gitignore: Add lisp/international/charscript.el.

1 files changed, 5 insertions, 229 deletions

diff --git a/lisp/international/characters.el b/lisp/international/characters.el
index c4c9060d842..310384aa969 100644
--- a/lisp/international/characters.el
+++ b/lisp/international/characters.el
@@ -1163,235 +1163,11 @@ Setup char-width-table appropriate for non-CJK language environment."
 
 
 ;; Setting char-script-table.
-
-;; The data is compiled from Blocks.txt and Scripts.txt in the
-;; "Unicode Character Database", simplified to lump together all the
-;; blocks belonging to the same language.  E.g., "Basic Latin",
-;; "Latin-1 Supplement", "Latin Extended-A", etc. are all lumped
-;; together under "latin".
-;;
-;; The Unicode blocks actually extend past some of these ranges with
-;; undefined codepoints.
-;;
-;; Last update: http://www.unicode.org/Public/8.0.0/ucd/Blocks-8.0.0d3.txt
-(let ((script-list nil))
-  (dolist
-      (elt
-       '((#x0000 #x007F latin)
-	 (#x00A0 #x024F latin)
-	 (#x0250 #x02AF phonetic)	; IPA Extensions
-	 (#x02B0 #x036F latin)		; Spacing Modifiers and Diacriticals
-	 (#x0370 #x03E1 greek)
-	 (#x03E2 #x03EF coptic)
-	 (#x03F0 #x03FF greek)
-	 (#x0400 #x052F cyrillic)
-	 (#x0530 #x058F armenian)
-	 (#x0590 #x05FF hebrew)
-	 (#x0600 #x06FF arabic)
-	 (#x0700 #x074F syriac)
-	 (#x0750 #x077F arabic)		; Arabic Supplement
-	 (#x0780 #x07BF thaana)
-	 (#x07C0 #x07FF nko)
-	 (#x0800 #x083F samaritan)
-	 (#x0840 #x085F mandaic)
-	 (#x08A0 #x08FF arabic)		; Arabic Extended-A
-	 (#x0900 #x097F devanagari)
-	 (#x0980 #x09FF bengali)
-	 (#x0A00 #x0A7F gurmukhi)
-	 (#x0A80 #x0AFF gujarati)
-	 (#x0B00 #x0B7F oriya)
-	 (#x0B80 #x0BFF tamil)
-	 (#x0C00 #x0C7F telugu)
-	 (#x0C80 #x0CFF kannada)
-	 (#x0D00 #x0D7F malayalam)
-	 (#x0D80 #x0DFF sinhala)
-	 (#x0E00 #x0E7F thai)
-	 (#x0E80 #x0EFF lao)
-	 (#x0F00 #x0FFF tibetan)
-	 (#x1000 #x109F burmese)	; Myanmar
-	 (#x10A0 #x10FF georgian)
-	 (#x1100 #x11FF hangul)
-	 (#x1200 #x139F ethiopic)	; Ethiopic and Ethiopic Supplement
-	 (#x13A0 #x13FF cherokee)
-	 (#x1400 #x167F canadian-aboriginal)
-	 (#x1680 #x169F ogham)
-	 (#x16A0 #x16FF runic)
-	 (#x1700 #x171F tagalog)
-	 (#x1720 #x173F hanunoo)
-	 (#x1740 #x175F buhid)
-	 (#x1760 #x177F tagbanwa)
-	 (#x1780 #x17FF khmer)
-	 (#x1800 #x18AF mongolian)
-	 (#x18B0 #x18FF canadian-aboriginal) ; Canadian Aboriginal Syllabics Extended
-	 (#x1900 #x194F limbu)
-	 (#x1950 #x197F tai-le)
-	 (#x1980 #x19DF tai-lue)	; New Tai Lue
-	 (#x19E0 #x19FF khmer)		; Khmer Symbols
-	 (#x1A00 #x1A1F buginese)
-	 (#x1A20 #x1AAF tai-tham)
-	 (#x1AB0 #x1AFF latin)		; Combining Diacritical Marks Extended
-	 (#x1B00 #x1B7F balinese)
-	 (#x1B80 #x1BBF sundanese)
-	 (#x1BC0 #x1BFF batak)
-	 (#x1C00 #x1C4F lepcha)
-	 (#x1C50 #x1C7F ol-chiki)
-	 (#x1CC0 #x1CCF sundanese)
-	 (#x1CD0 #x1CFF vedic)
-	 (#x1D00 #x1DBF phonetic)	; Phonetic Extensions & Supplement
-	 (#x1DC0 #x1EFF latin)		; Latin Extended Additional
-	 (#x1F00 #x1FFF greek)		; Greek Extended
-	 (#x2000 #x27FF symbol)
-	 (#x2800 #x28FF braille)
-	 (#x2900 #x2BFF symbol)
-	 (#x2C00 #x2C5F glagolitic)
-	 (#x2C60 #x2C7F latin)		; Latin Extended-C
-	 (#x2C80 #x2CFF coptic)
-	 (#x2D00 #x2D2F georgian)	; Georgian Supplement
-	 (#x2D30 #x2D7F tifinagh)
-	 (#x2D80 #x2DDF ethiopic)	; Ethiopic Extended
-	 (#x2DE0 #x2DFF cyrillic)	; Cyrillic Extended-A
-	 (#x2E00 #x2E7F symbol)
-	 (#x2E80 #x2FDF han)
-	 (#x2FF0 #x2FFF ideographic-description)
-	 (#x3000 #x303F cjk-misc)
-	 (#x3040 #x30FF kana)		; Hiragana and Katakana
-	 (#x3100 #x312F bopomofo)
-	 (#x3130 #x318F hangul)		; Hangul Compatibility Jamo
-	 (#x3190 #x319F kanbun)
-	 (#x31A0 #x31BF bopomofo)	; Bopomofo Extended
-	 (#x31C0 #x31EF cjk-misc)	; CJK Strokes
-	 (#x31F0 #x31FF kana)		; Katakana Phonetic Extensions
-	 (#x3200 #x9FFF han)
-	 (#xA000 #xA4CF yi)
-	 (#xA4D0 #xA4FF lisu)
-	 (#xA500 #xA63F vai)
-	 (#xA640 #xA69F cyrillic)	; Cyrillic Extended-B
-	 (#xA6A0 #xA6FF bamum)
-	 (#xA700 #xA7FF latin)
-	 (#xA800 #xA82F syloti-nagri)
-	 (#xA830 #xA83F north-indic-number)
-	 (#xA840 #xA87F phags-pa)
-	 (#xA880 #xA8DF saurashtra)
-	 (#xA8E0 #xA8FF devanagari)	; Devanagari Extended
-	 (#xA900 #xA92F kayah-li)
-	 (#xA930 #xA95F rejang)
-	 (#xA960 #xA97F hangul)		; Hangul Jamo Extended
-	 (#xA980 #xA9DF javanese)
-	 (#xA9E0 #xA9FF burmese)	; Myanmar Extended-B
-	 (#xAA00 #xAA5F cham)
-	 (#xAA60 #xAA7F burmese)	; Myanmar Extended-A
-	 (#xAA80 #xAADF tai-viet)
-	 (#xAAE0 #xAAFF meetei-mayek)	; Meetei Mayek Extensions
-	 (#xAB00 #xAB2F ethiopic)	; Ethiopic Extended-A
-	 (#xAB30 #xAB6F latin)		; Latin Extended-E
-         (#xAB70 #xABBF cherokee)       ; Cherokee Supplement
-	 (#xABC0 #xABFF meetei-mayek)
-	 (#xAC00 #xD7FF hangul)
-	 (#xF900 #xFAFF han)
-	 (#xFB00 #xFB06 latin)	        ; Latin ligatures
-	 (#xFB13 #xFB17 armenian)	; Armenian ligatures
-	 (#xFB1D #xFB4F hebrew)	        ; Alphabetic Presentation Forms
-	 (#xFB50 #xFDFF arabic)		; Arabic Presentation Forms-A
-         (#xFE10 #xFE1F vertical-form)
-	 (#xFE20 #xFE2F latin)		; Combining Half Marks
-	 (#xFE30 #xFE4F han)
-         (#xFE50 #xFE6F symbol)         ; Small Form Variants
-	 (#xFE70 #xFEFF arabic)		; Arabic Presentation Forms-B
-	 (#xFF00 #xFF60 cjk-misc)
-	 (#xFF61 #xFF9F kana)
-	 (#xFFA0 #xFFDF hangul)
-	 (#xFFE0 #xFFEF cjk-misc)
-	 (#x10000 #x100FF linear-b)
-	 (#x10100 #x1013F aegean-number)
-	 (#x10140 #x1018F ancient-greek-number)
-	 (#x10190 #x101CF ancient-symbol)
-	 (#x101D0 #x101FF phaistos-disc)
-	 (#x10280 #x1029F lycian)
-	 (#x102A0 #x102DF carian)
-	 (#x102E0 #x102FF coptic)	; Coptic Epact Numbers
-	 (#x10300 #x1032F old-italic)
-	 (#x10330 #x1034F gothic)
-	 (#x10350 #x1037F old-permic)
-	 (#x10380 #x1039F ugaritic)
-	 (#x103A0 #x103DF old-persian)
-	 (#x10400 #x1044F deseret)
-	 (#x10450 #x1047F shavian)
-	 (#x10480 #x104AF osmanya)
-	 (#x10500 #x1052F elbasan)
-	 (#x10530 #x1056F caucasian-albanian)
-	 (#x10600 #x1077F linear-a)
-	 (#x10800 #x1083F cypriot-syllabary)
-	 (#x10840 #x1085F aramaic)
-	 (#x10860 #x1087F palmyrene)
-	 (#x10880 #x108AF nabataean)
-         (#x108E0 #x108FF hatran)
-	 (#x10900 #x1091F phoenician)
-	 (#x10920 #x1093F lydian)
-	 (#x10980 #x109FF meroitic)
-	 (#x10A00 #x10A5F kharoshthi)
-	 (#x10A60 #x10A7F old-south-arabian)
-	 (#x10A80 #x10A9F old-north-arabian)
-	 (#x10AC0 #x10AFF manichaean)
-	 (#x10B00 #x10B3F avestan)
-	 (#x10B40 #x10B5F inscriptional-parthian)
-	 (#x10B60 #x10B7F inscriptional-pahlavi)
-	 (#x10B80 #x10BAF psalter-pahlavi)
-	 (#x10C00 #x10C4F old-turkic)
-         (#x10C80 #x10CFF old-hungarian)
-	 (#x10E60 #x10E7F rumi-number)
-	 (#x11000 #x1107F brahmi)
-	 (#x11080 #x110CF kaithi)
-	 (#x110D0 #x110FF sora-sompeng)
-	 (#x11100 #x1114F chakma)
-	 (#x11150 #x1117F mahajani)
-	 (#x11180 #x111DF sharada)
-	 (#x111E0 #x111FF sinhala-archaic-number)
-	 (#x11200 #x1124F khojki)
-         (#x11280 #x112AF multani)
-	 (#x112B0 #x112FF khudawadi)
-	 (#x11300 #x1137F grantha)
-	 (#x11480 #x114DF tirhuta)
-	 (#x11580 #x115FF siddham)
-	 (#x11600 #x1165F modi)
-	 (#x11680 #x116CF takri)
-         (#x11700 #x1173F ahom)
-	 (#x118A0 #x118FF warang-citi)
-	 (#x11AC0 #x11AFF pau-cin-hau)
-	 (#x12000 #x123FF cuneiform)
-	 (#x12400 #x1247F cuneiform-numbers-and-punctuation)
-	 (#x12480 #x1254F cuneiform)	; Early Dynastic Cuneiform
-	 (#x13000 #x1342F egyptian)
-	 (#x14400 #x1467F anatolian)
-	 (#x16800 #x16A3F bamum)
-	 (#x16A40 #x16A6F mro)
-	 (#x16AD0 #x16AFF bassa-vah)
-	 (#x16B00 #x16B8F pahawh-hmong)
-	 (#x16F00 #x16F9F miao)
-	 (#x1B000 #x1B0FF kana)		; Kana Supplement
-	 (#x1BC00 #x1BCAF duployan-shorthand)
-	 (#x1D000 #x1D0FF byzantine-musical-symbol)
-	 (#x1D100 #x1D1FF musical-symbol)
-	 (#x1D200 #x1D24F ancient-greek-musical-notation)
-	 (#x1D300 #x1D35F tai-xuan-jing-symbol)
-	 (#x1D360 #x1D37F counting-rod-numeral)
-	 (#x1D400 #x1D7FF mathematical)
-         (#x1D800 #x1DAAF sutton-sign-writing)
-	 (#x1E800 #x1E8DF mende-kikakui)
-	 (#x1EE00 #x1EEFF arabic)	; Arabic Mathematical Alphabetic Symbols
-	 (#x1F000 #x1F02F mahjong-tile)
-	 (#x1F030 #x1F09F domino-tile)
-	 (#x1F0A0 #x1F0FF playing-cards)
-	 (#x1F100 #x1F1FF symbol)	; Enclosed Alphanumeric Supplement
-	 (#x1F200 #x1F2FF han)		; Enclosed Ideographic Supplement
-	 (#x1F300 #x1F9FF symbol)
-	 (#x20000 #x2A6DF han)
-	 (#x2A700 #x2CEAF han)
-	 (#x2F800 #x2FA1F han)))
-    (set-char-table-range char-script-table
-			  (cons (car elt) (nth 1 elt)) (nth 2 elt))
-    (or (memq (nth 2 elt) script-list)
-	(setq script-list (cons (nth 2 elt) script-list))))
-  (set-char-table-extra-slot char-script-table 0 (nreverse script-list)))
+(if purify-flag
+    ;; While dumping, we can't use require, and international is not
+    ;; in load-path.
+    (load "international/charscript")
+  (require 'charscript))
 
 (map-charset-chars
  #'(lambda (range _ignore)