Package: emacs;
Reported by: Praveen A <pravi.a <at> gmail.com>
Date: Mon, 30 Nov 2009 13:50:03 UTC
Severity: normal
Done: Stefan Kangas <stefan <at> marxist.se>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Kenichi Handa <handa <at> m17n.org>
To: 5080 <at> debbugs.gnu.org
Cc: pravi.a <at> gmail.com, bug-gnu-emacs <at> gnu.org, pnemade <at> redhat.com,
5080 <at> debbugs.gnu.org, psatpute <at> redhat.com
Subject: bug#5080: indic text is not displayed correctly in emacs shell
Date: Fri, 04 Dec 2009 21:52:38 +0900
In article <tl7zl5zaqdf.fsf <at> m17n.org>, Kenichi Handa <handa <at> m17n.org> writes:
> In article <3f2beab60912040049we5870bbk9991a3eb37111b21 <at> mail.gmail.com>, Praveen A <pravi.a <at> gmail.com> writes:
> > (1) font file name (if possible, with the version number)
> >
> > lohit_ml.ttf (ttf-malayalam-fonts 1:0.5.6)
> > http://ftp.de.debian.org/debian/pool/main/t/ttf-indic-fonts/ttf-indic-fonts_0.5.6.tar.gz
> >
> > (2) problematic character sequence
> >
> > 0x0D23 0x0D4D 0x200D
> >
> > (ണ ് )
> Thank you for the data. I downloaded lohit_ml.ttf and
> confirmed the bug. I'll check what is wrong.
Please put the attached file (MLYM-OTF.flt) under ~/.m17n.d/
and try again. If it works, move that file to
/usr/share/m17n.
---
Kenichi Handa
handa <at> m17n.org
--- MLYM-OTF.flt ---
;; MLYM-OTF.flt -- Font Layout Table for Malayalam OpenType font
;; Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009 AIST (H15PRO112)
;; See the end for copying conditions.
(font layouter mlym-otf nil
(font (nil nil unicode-bmp :otf=mlym=akhn)))
;;; <li> MLYM-OTF.flt
;;;
;;; For Malayalam OpenType fonts to draw the reformed Malayalam script.
;; Tested with the following fonts. All of these fonts require Halant
;; movement for syllable-final YA and VA, but not for RA and LA.
;; AnjaliOldLipi.ttf
;; Dyuthi3.ttf
;; Kalyani121.ttf
;; Meera_04.ttf
;; Rachana_04.ttf
;; RaghuMalayalamSans2.ttf
;; suruma2.ttf
(category
;; C: ordinary consonants (except P)
;; P: consonants that have a post form
;; H: HALANT
;; m: vowel sign (pre)
;; b: vowel sign (below)
;; p: vowel sign (post)
;; A: vowel modifier (post)
;; V: independent vowel
;; N: ZWNJ (ZERO WIDTH NON-JOINER)
;; J: ZWJ (ZERO WIDTH JOINER)
;; Z: internal use
;; X: generic
(0x0D00 0x0D7F ?X) ; generic
(0x0D00 ?Z) ; internal use
(0x0D02 0x0D03 ?A) ; SIGN ANUSVARA .. VISARGA
(0x0D05 0x0D14 ?V) ; LETTER A .. AU
(0x0D15 0x0D39 ?C) ; LETTER KA .. HA
(0x0D2F ?P) ; LETTER YA
(0x0D35 ?P) ; LETTER VA
(0x0D3E 0x0D44 ?p) ; VOWEL SIGN AA .. VOCALIC RR
(0x0D46 0x0D48 ?m) ; VOWEL SIGN E .. AI
(0x0D4D ?H) ; SIGN VIRAMA
(0x0D57 ?p) ; AU LENGTH MARK
(0x0D60 0x0D61 ?V) ; LETTER VOCALIC RR .. VOCALIC LL
(0x0D62 0x0D63 ?b) ; VOWEL SIGN VOCALIC L .. LL
(0x0964 0x0965 ?X) ; DANDA .. DOUBLE DANDA
(0x200C ?N) ; ZWNJ
(0x200D ?J) ; ZWJ
)
;; Stage 0
;; Decompose two-part vowels.
(generator
(0
(cond
((0x0D4A)
0x0D46 0x0D3E)
((0x0D4B)
0x0D47 0x0D3E)
((0x0D4C)
0x0D46 0x0D57)
("." =))
*))
;; Stage 1
;; Syllable identification and reordering.
;; Put the mark Z after the base consonant.
(generator
(0
(cond
;; A syllable with a left vowel sign.
;;1 2 3 4
("([CP](H[CP])*)(m)(p?A?)"
< | (3 =) (1 move-h) (4 = *) | >)
;; A syllable with a right vowel sign, a below vowel sign
;; and/or a vowel modifier.
;;1 2 3
("([CP](H[CP])*)(bA?|pA?|A)"
< | (1 move-h) (3 = *) | >)
;; Forced chillu form.
;;1 2 3
("([CP](H[CP])*)(HJ)"
< | (1 move-h) (3 = =) | >)
;; A syllable with no vowel signs/modifiers, optionally followed by
;; an H or an HN.
;;1 2 3
("([CP](H[CP])*)(H|HN)?"
< | (1 move-h) (3 0x0D4D) | >)
;; Starting with an independent vowel.
("VA?"
< | (0 = *) | >)
("." =))
*)
;; Move the halant that follows the base consonant to the end.
(move-h
(cond
;; All consonants are P's.
("(P)(H)([PH]*)$"
(1 =) 0x0D00 (3 = *) (2 =))
;; One or more Non-P consonants.
("([CPH]*C)(H)([PH]+)$"
(1 = *) 0x0D00 (3 = *) (2 =))
;; Otherwise, final consonant is not P. No need to move H.
(".+"
= * 0x0D00)))
)
;; Stage 2
;; Apply GSUB features.
(generator
(0
(cond
;; The tested fonts make LA's below form with 1. 'half' + 'blws',
;; 2. 'half' + 'pres' or 3. 'akhn'.
;; 1 2 3 4
(" (m)?([CPH]*)(Z)([PHbpAJ]*) "
| (1 =) (2 otf:mlym=akhn,half,pstf,pres,abvs,blws+) (3 =)
(4 otf:mlym=pstf+) |)
("." =))
*))
;; Stage 3
;; Second reordering. If there are glyphs before the base, move left
;; vowel sign to the left of the base.
(generator
(0
(cond
;; 1 2 3 4
(" (m)?([^Z ]*)([^Z])Z([^ ]*) "
| (2 = *) (1 =) (3 =) (4 = *) |)
("." =))
*))
;; Stage 4
;; Apply remaining GSUB and GPOS features to all syllables. To get
;; correct Y.YA and V.VA conjunctions, we must apply 'psts' to the
;; entire syllable.
(generator
(0
(cond
(" ([^ ]+) "
(1 otf:mlym=akhn,psts,haln+abvm,blwm,dist))
("."
[ = ]))
*))
;; Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009
;; National Institute of Advanced Industrial Science and Technology (AIST)
;; Registration Number H15PRO112
;; This file is part of the m17n database; a sub-part of the m17n
;; library.
;; The m17n library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public License
;; as published by the Free Software Foundation; either version 2.1 of
;; the License, or (at your option) any later version.
;; The m17n library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; Lesser General Public License for more details.
;; You should have received a copy of the GNU Lesser General Public
;; License along with the m17n library; if not, write to the Free
;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;; Local Variables:
;; mode: emacs-lisp
;; End:
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