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|
;;; nxml-glyph.el --- glyph-handling for nxml-mode
;; Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
;; Author: James Clark
;; Keywords: wp, hypermedia, languages, XML
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; The entry point to this file is `nxml-glyph-display-string'.
;; The current implementation is heuristic due to a lack of
;; Emacs primitives necessary to implement it properly. The user
;; can tweak the heuristics using `nxml-glyph-set-functions'.
;;; Code:
(defconst nxml-ascii-glyph-set
[(#x0020 . #x007E)])
(defconst nxml-latin1-glyph-set
[(#x0020 . #x007E)
(#x00A0 . #x00FF)])
;; These were generated by using nxml-insert-target-repertoire-glyph-set
;; on the TARGET[123] files in
;; http://www.cl.cam.ac.uk/~mgk25/download/ucs-fonts.tar.gz
(defconst nxml-misc-fixed-1-glyph-set
[(#x0020 . #x007E)
(#x00A0 . #x00FF)
(#x0100 . #x017F)
#x018F #x0192
(#x0218 . #x021B)
#x0259
(#x02C6 . #x02C7)
(#x02D8 . #x02DD)
(#x0374 . #x0375)
#x037A #x037E
(#x0384 . #x038A)
#x038C
(#x038E . #x03A1)
(#x03A3 . #x03CE)
(#x0401 . #x040C)
(#x040E . #x044F)
(#x0451 . #x045C)
(#x045E . #x045F)
(#x0490 . #x0491)
(#x05D0 . #x05EA)
(#x1E02 . #x1E03)
(#x1E0A . #x1E0B)
(#x1E1E . #x1E1F)
(#x1E40 . #x1E41)
(#x1E56 . #x1E57)
(#x1E60 . #x1E61)
(#x1E6A . #x1E6B)
(#x1E80 . #x1E85)
(#x1EF2 . #x1EF3)
(#x2010 . #x2022)
#x2026 #x2030
(#x2039 . #x203A)
#x20AC #x2116 #x2122 #x2126
(#x215B . #x215E)
(#x2190 . #x2193)
#x2260
(#x2264 . #x2265)
(#x23BA . #x23BD)
(#x2409 . #x240D)
#x2424 #x2500 #x2502 #x250C #x2510 #x2514 #x2518 #x251C #x2524 #x252C #x2534 #x253C #x2592 #x25C6 #x266A #xFFFD]
"Glyph set for TARGET1 glyph repertoire of misc-fixed-* font.
This repertoire is supported for the bold and oblique fonts.")
(defconst nxml-misc-fixed-2-glyph-set
[(#x0020 . #x007E)
(#x00A0 . #x00FF)
(#x0100 . #x017F)
#x018F #x0192
(#x01FA . #x01FF)
(#x0218 . #x021B)
#x0259
(#x02C6 . #x02C7)
#x02C9
(#x02D8 . #x02DD)
(#x0300 . #x0311)
(#x0374 . #x0375)
#x037A #x037E
(#x0384 . #x038A)
#x038C
(#x038E . #x03A1)
(#x03A3 . #x03CE)
#x03D1
(#x03D5 . #x03D6)
#x03F1
(#x0401 . #x040C)
(#x040E . #x044F)
(#x0451 . #x045C)
(#x045E . #x045F)
(#x0490 . #x0491)
(#x05D0 . #x05EA)
(#x1E02 . #x1E03)
(#x1E0A . #x1E0B)
(#x1E1E . #x1E1F)
(#x1E40 . #x1E41)
(#x1E56 . #x1E57)
(#x1E60 . #x1E61)
(#x1E6A . #x1E6B)
(#x1E80 . #x1E85)
(#x1EF2 . #x1EF3)
(#x2010 . #x2022)
#x2026 #x2030
(#x2032 . #x2034)
(#x2039 . #x203A)
#x203C #x203E #x2044
(#x2070 . #x2071)
(#x2074 . #x208E)
(#x20A3 . #x20A4)
#x20A7 #x20AC
(#x20D0 . #x20D7)
#x2102 #x2105 #x2113
(#x2115 . #x2116)
#x211A #x211D #x2122 #x2124 #x2126 #x212E
(#x215B . #x215E)
(#x2190 . #x2195)
(#x21A4 . #x21A8)
(#x21D0 . #x21D5)
(#x2200 . #x2209)
(#x220B . #x220C)
#x220F
(#x2211 . #x2213)
#x2215
(#x2218 . #x221A)
(#x221D . #x221F)
#x2221
(#x2224 . #x222B)
#x222E #x223C #x2243 #x2245
(#x2248 . #x2249)
#x2259
(#x225F . #x2262)
(#x2264 . #x2265)
(#x226A . #x226B)
(#x2282 . #x228B)
#x2295 #x2297
(#x22A4 . #x22A7)
(#x22C2 . #x22C3)
#x22C5 #x2300 #x2302
(#x2308 . #x230B)
#x2310
(#x2320 . #x2321)
(#x2329 . #x232A)
(#x23BA . #x23BD)
(#x2409 . #x240D)
#x2424 #x2500 #x2502 #x250C #x2510 #x2514 #x2518 #x251C #x2524 #x252C #x2534 #x253C
(#x254C . #x2573)
(#x2580 . #x25A1)
(#x25AA . #x25AC)
(#x25B2 . #x25B3)
#x25BA #x25BC #x25C4 #x25C6
(#x25CA . #x25CB)
#x25CF
(#x25D8 . #x25D9)
#x25E6
(#x263A . #x263C)
#x2640 #x2642 #x2660 #x2663
(#x2665 . #x2666)
(#x266A . #x266B)
(#xFB01 . #xFB02)
#xFFFD]
"Glyph set for TARGET2 glyph repertoire of the misc-fixed-* fonts.
This repertoire is supported for the following fonts:
5x7.bdf 5x8.bdf 6x9.bdf 6x10.bdf 6x12.bdf 7x13.bdf 7x14.bdf clR6x12.bdf")
(defconst nxml-misc-fixed-3-glyph-set
[(#x0020 . #x007E)
(#x00A0 . #x00FF)
(#x0100 . #x01FF)
(#x0200 . #x0220)
(#x0222 . #x0233)
(#x0250 . #x02AD)
(#x02B0 . #x02EE)
(#x0300 . #x034F)
(#x0360 . #x036F)
(#x0374 . #x0375)
#x037A #x037E
(#x0384 . #x038A)
#x038C
(#x038E . #x03A1)
(#x03A3 . #x03CE)
(#x03D0 . #x03F6)
(#x0400 . #x0486)
(#x0488 . #x04CE)
(#x04D0 . #x04F5)
(#x04F8 . #x04F9)
(#x0500 . #x050F)
(#x0531 . #x0556)
(#x0559 . #x055F)
(#x0561 . #x0587)
(#x0589 . #x058A)
(#x05B0 . #x05B9)
(#x05BB . #x05C4)
(#x05D0 . #x05EA)
(#x05F0 . #x05F4)
(#x10D0 . #x10F8)
#x10FB
(#x1E00 . #x1E9B)
(#x1EA0 . #x1EF9)
(#x1F00 . #x1F15)
(#x1F18 . #x1F1D)
(#x1F20 . #x1F45)
(#x1F48 . #x1F4D)
(#x1F50 . #x1F57)
#x1F59 #x1F5B #x1F5D
(#x1F5F . #x1F7D)
(#x1F80 . #x1FB4)
(#x1FB6 . #x1FC4)
(#x1FC6 . #x1FD3)
(#x1FD6 . #x1FDB)
(#x1FDD . #x1FEF)
(#x1FF2 . #x1FF4)
(#x1FF6 . #x1FFE)
(#x2000 . #x200A)
(#x2010 . #x2027)
(#x202F . #x2052)
#x2057
(#x205F . #x2063)
(#x2070 . #x2071)
(#x2074 . #x208E)
(#x20A0 . #x20B1)
(#x20D0 . #x20EA)
(#x2100 . #x213A)
(#x213D . #x214B)
(#x2153 . #x2183)
(#x2190 . #x21FF)
(#x2200 . #x22FF)
(#x2300 . #x23CE)
(#x2400 . #x2426)
(#x2440 . #x244A)
(#x2500 . #x25FF)
(#x2600 . #x2613)
(#x2616 . #x2617)
(#x2619 . #x267D)
(#x2680 . #x2689)
(#x27E6 . #x27EB)
(#x27F5 . #x27FF)
(#x2A00 . #x2A06)
#x2A1D #x2A3F #x303F
(#xFB00 . #xFB06)
(#xFB13 . #xFB17)
(#xFB1D . #xFB36)
(#xFB38 . #xFB3C)
#xFB3E
(#xFB40 . #xFB41)
(#xFB43 . #xFB44)
(#xFB46 . #xFB4F)
(#xFE20 . #xFE23)
(#xFF61 . #xFF9F)
#xFFFD]
"Glyph set for TARGET3 glyph repertoire of the misc-fixed-* fonts.
This repertoire is supported for the following fonts:
6x13.bdf 8x13.bdf 9x15.bdf 9x18.bdf 10x20.bdf")
(defconst nxml-wgl4-glyph-set
[(#x0020 . #x007E)
(#x00A0 . #x017F)
#x0192
(#x01FA . #x01FF)
(#x02C6 . #x02C7)
#x02C9
(#x02D8 . #x02DB)
#x02DD
(#x0384 . #x038A)
#x038C
(#x038E . #x03A1)
(#x03A3 . #x03CE)
(#x0401 . #x040C)
(#x040E . #x044F)
(#x0451 . #x045C)
(#x045E . #x045F)
(#x0490 . #x0491)
(#x1E80 . #x1E85)
(#x1EF2 . #x1EF3)
(#x2013 . #x2015)
(#x2017 . #x201E)
(#x2020 . #x2022)
#x2026 #x2030
(#x2032 . #x2033)
(#x2039 . #x203A)
#x203C #x203E #x2044 #x207F
(#x20A3 . #x20A4)
#x20A7 #x20AC #x2105 #x2113 #x2116 #x2122 #x2126 #x212E
(#x215B . #x215E)
(#x2190 . #x2195)
#x21A8 #x2202 #x2206 #x220F
(#x2211 . #x2212)
#x2215
(#x2219 . #x221A)
(#x221E . #x221F)
#x2229 #x222B #x2248
(#x2260 . #x2261)
(#x2264 . #x2265)
#x2302 #x2310
(#x2320 . #x2321)
#x2500 #x2502 #x250C #x2510 #x2514 #x2518 #x251C #x2524
#x252C #x2534 #x253C
(#x2550 . #x256C)
#x2580 #x2584 #x2588 #x258C
(#x2590 . #x2593)
(#x25A0 . #x25A1)
(#x25AA . #x25AC)
#x25B2 #x25BA #x25BC #x25C4
(#x25CA . #x25CB)
#x25CF
(#x25D8 . #x25D9)
#x25E6
(#x263A . #x263C)
#x2640 #x2642 #x2660 #x2663
(#x2665 . #x2666)
(#x266A . #x266B)
(#xFB01 . #xFB02)]
"Glyph set corresponding to Windows Glyph List 4.")
(defvar nxml-glyph-set-functions nil
"Abnormal hook for determining the set of glyphs in a face.
Each function in this hook is called in turn, unless one of them
returns non-nil. Each function is called with a single argument
FACE. If it can determine the set of glyphs representable by
FACE, it must set the variable `nxml-glyph-set' and return
non-nil. Otherwise, it must return nil.
The constants `nxml-ascii-glyph-set', `nxml-latin1-glyph-set',
`nxml-misc-fixed-1-glyph-set', `nxml-misc-fixed-2-glyph-set',
`nxml-misc-fixed-3-glyph-set' and `nxml-wgl4-glyph-set' are
predefined for use by `nxml-glyph-set-functions'.")
(define-obsolete-variable-alias 'nxml-glyph-set-hook
'nxml-glyph-set-functions "24.3")
(defvar nxml-glyph-set nil
"Used by `nxml-glyph-set-functions' to return set of glyphs in a FACE.
This should dynamically bound by any function that runs
`nxml-glyph-set-functions'. The value must be either nil representing an
empty set or a vector. Each member of the vector is either a single
integer or a cons (FIRST . LAST) representing the range of integers
from FIRST to LAST. An integer represents a glyph with that Unicode
code-point. The vector must be ordered.")
(defun nxml-x-set-glyph-set (face)
(setq nxml-glyph-set
(if (equal (face-attribute face :family) "misc-fixed")
nxml-misc-fixed-3-glyph-set
nxml-wgl4-glyph-set)))
(defun nxml-w32-set-glyph-set (face)
(setq nxml-glyph-set nxml-wgl4-glyph-set))
(defun nxml-window-system-set-glyph-set (face)
(setq nxml-glyph-set nxml-latin1-glyph-set))
(defun nxml-terminal-set-glyph-set (face)
(setq nxml-glyph-set nxml-ascii-glyph-set))
(add-hook 'nxml-glyph-set-functions
(or (cdr (assq window-system
'((x . nxml-x-set-glyph-set)
(w32 . nxml-w32-set-glyph-set)
(nil . nxml-terminal-set-glyph-set))))
'nxml-window-system-set-glyph-set)
t)
;;;###autoload
(defun nxml-glyph-display-string (n face)
"Return a string that can display a glyph for Unicode code-point N.
FACE gives the face that will be used for displaying the string.
Return nil if the face cannot display a glyph for N."
(let ((nxml-glyph-set nil))
(run-hook-with-args-until-success 'nxml-glyph-set-functions face)
(and nxml-glyph-set
(nxml-glyph-set-contains-p n nxml-glyph-set)
(let ((ch (decode-char 'ucs n)))
(and ch (string ch))))))
(defun nxml-glyph-set-contains-p (n v)
(let ((start 0)
(end (length v))
found mid mid-val mid-start-val mid-end-val)
(while (> end start)
(setq mid (+ start
(/ (- end start) 2)))
(setq mid-val (aref v mid))
(if (consp mid-val)
(setq mid-start-val (car mid-val)
mid-end-val (cdr mid-val))
(setq mid-start-val mid-val
mid-end-val mid-val))
(cond ((and (<= mid-start-val n)
(<= n mid-end-val))
(setq found t)
(setq start end))
((< n mid-start-val)
(setq end mid))
(t
(setq start
(if (eq start mid)
end
mid)))))
found))
(provide 'nxml-glyph)
;;; nxml-glyph.el ends here
|
