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Commit bca633fb authored by Eli Zaretskii's avatar Eli Zaretskii
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Followup for character properties in 2011-08-23T11:48:07Z!handa@m17n.org. 

 src/bidi.c (bidi_get_type): Abort if we get zero as the bidi type of
 a character.
 admin/unidata/unidata-gen.el (unidata-prop-alist): Update the default
 values of bidi-class according to DerivedBidiClass.txt from the
 latest UCD.
 lisp/international/uni-bidi.el: Regenerated.
 doc/lispref/nonascii.texi (Character Properties): Document the values for
 unassigned codepoints.
parent 4a5885a7
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admin/ChangeLog
View file @ bca633fb
2011-08-23 Eli Zaretskii <eliz@gnu.org>
* unidata/unidata-gen.el (unidata-prop-alist): Update the default
values of bidi-class according to DerivedBidiClass.txt from the
latest UCD.
2011-08-23 Kenichi Handa <handa@m17n.org>
* unidata/unidata-gen.el (unidata-prop-alist): Provide default
......
admin/unidata/unidata-gen.el
View file @ bca633fb
......@@ -194,7 +194,11 @@ Property value is one of the following symbols:
L, LRE, LRO, R, AL, RLE, RLO, PDF, EN, ES, ET,
AN, CS, NSM, BN, B, S, WS, ON"
unidata-describe-bidi-class
(L (#x0600 #x06FF AL) (#x0590 #x05FF R) (#x07C0 #x08FF R)
;; The assignment of default values to blocks of code points
;; follows the file DerivedBidiClass.txt from the Unicode
;; Character Database (UCD).
(L (#x0600 #x06FF AL) (#xFB50 #xFDFF AL) (#xFE70 #xFEFF AL)
(#x0590 #x05FF R) (#x07C0 #x08FF R)
(#xFB1D #xFB4F R) (#x10800 #x10FFF R) (#x1E800 #x1EFFF R))
;; The order of elements must be in sync with bidi_type_t in
;; src/dispextern.h.
......
doc/lispref/ChangeLog
View file @ bca633fb
2011-08-23 Eli Zaretskii <eliz@gnu.org>
* nonascii.texi (Character Properties): Document the values for
unassigned codepoints.
2011-08-18 Eli Zaretskii <eliz@gnu.org>
* nonascii.texi (Character Properties): Document use of
......
doc/lispref/nonascii.texi
View file @ bca633fb
......@@ -369,6 +369,12 @@ replacing each @samp{_} character with a dash @samp{-}. For example,
@code{canonical-combining-class}. However, sometimes we shorten the
names to make their use easier.
@cindex unassigned character codepoints
Some codepoints are left @dfn{unassigned} by the
@acronym{UCD}---they don't correspond to any character. The Unicode
Standard defines default values of properties for such codepoints;
they are mentioned below for each property.
Here is the full list of value types for all the character
properties that Emacs knows about:
......@@ -376,24 +382,31 @@ properties that Emacs knows about:
@item name
Corresponds to the @code{Name} Unicode property. The value is a
string consisting of upper-case Latin letters A to Z, digits, spaces,
and hyphen @samp{-} characters.
and hyphen @samp{-} characters. For unassigned codepoints, the value
is an empty string.
@cindex unicode general category
@item general-category
Corresponds to the @code{General_Category} Unicode property. The
value is a symbol whose name is a 2-letter abbreviation of the
character's classification.
character's classification. For unassigned codepoints, the value
is @code{Cn}.
@item canonical-combining-class
Corresponds to the @code{Canonical_Combining_Class} Unicode property.
The value is an integer number.
The value is an integer number. For unassigned codepoints, the value
is zero.
@cindex bidirectional class of characters
@item bidi-class
Corresponds to the Unicode @code{Bidi_Class} property. The value is a
symbol whose name is the Unicode @dfn{directional type} of the
character. Emacs uses this property when it reorders bidirectional
text for display (@pxref{Bidirectional Display}).
text for display (@pxref{Bidirectional Display}). For unassigned
codepoints, the value depends on the code blocks to which the
codepoint belongs: most unassigned codepoints get the value of
@code{L} (strong L), but some get values of @code{AL} (Arabic letter)
or @code{R} (strong R).
@item decomposition
Corresponds to the Unicode @code{Decomposition_Type} and
......@@ -405,19 +418,22 @@ Note that the Unicode spec writes these tag names inside
brackets; e.g., Unicode specifies @samp{<small>} where Emacs uses
@samp{small}.
}; the other elements are characters that give the compatibility
decomposition sequence of this character.
decomposition sequence of this character. For unassigned codepoints,
the value is the character itself.
@item decimal-digit-value
Corresponds to the Unicode @code{Numeric_Value} property for
characters whose @code{Numeric_Type} is @samp{Digit}. The value is an
integer number.
integer number. For unassigned codepoints, the value is @code{nil},
which means @acronym{NaN}, or ``not-a-number''.
@item digit-value
Corresponds to the Unicode @code{Numeric_Value} property for
characters whose @code{Numeric_Type} is @samp{Decimal}. The value is
an integer number. Examples of such characters include compatibility
subscript and superscript digits, for which the value is the
corresponding number.
corresponding number. For unassigned codepoints, the value is
@code{nil}, which means @acronym{NaN}.
@item numeric-value
Corresponds to the Unicode @code{Numeric_Value} property for
......@@ -426,12 +442,15 @@ this property is an integer or a floating-point number. Examples of
characters that have this property include fractions, subscripts,
superscripts, Roman numerals, currency numerators, and encircled
numbers. For example, the value of this property for the character
@code{U+2155} (@sc{vulgar fraction one fifth}) is @code{0.2}.
@code{U+2155} (@sc{vulgar fraction one fifth}) is @code{0.2}. For
unassigned codepoints, the value is @code{nil}, which means
@acronym{NaN}.
@cindex mirroring of characters
@item mirrored
Corresponds to the Unicode @code{Bidi_Mirrored} property. The value
of this property is a symbol, either @code{Y} or @code{N}.
of this property is a symbol, either @code{Y} or @code{N}. For
unassigned codepoints, the value is @code{N}.
@item mirroring
Corresponds to the Unicode @code{Bidi_Mirroring_Glyph} property. The
......@@ -443,29 +462,33 @@ property; however, some characters whose @code{mirrored} property is
@code{Y} also have @code{nil} for @code{mirroring}, because no
appropriate characters exist with mirrored glyphs. Emacs uses this
property to display mirror images of characters when appropriate
(@pxref{Bidirectional Display}).
(@pxref{Bidirectional Display}). For unassigned codepoints, the value
is @code{nil}.
@item old-name
Corresponds to the Unicode @code{Unicode_1_Name} property. The value
is a string.
is a string. For unassigned codepoints, the value is an empty string.
@item iso-10646-comment
Corresponds to the Unicode @code{ISO_Comment} property. The value is
a string.
a string. For unassigned codepoints, the value is an empty string.
@item uppercase
Corresponds to the Unicode @code{Simple_Uppercase_Mapping} property.
The value of this property is a single character.
The value of this property is a single character. For unassigned
codepoints, the value is @code{nil}, which means the character itself.
@item lowercase
Corresponds to the Unicode @code{Simple_Lowercase_Mapping} property.
The value of this property is a single character.
The value of this property is a single character. For unassigned
codepoints, the value is @code{nil}, which means the character itself.
@item titlecase
Corresponds to the Unicode @code{Simple_Titlecase_Mapping} property.
@dfn{Title case} is a special form of a character used when the first
character of a word needs to be capitalized. The value of this
property is a single character.
property is a single character. For unassigned codepoints, the value
is @code{nil}, which means the character itself.
@end table
@defun get-char-code-property char propname
......
lisp/ChangeLog
View file @ bca633fb
2011-08-23 Eli Zaretskii <eliz@gnu.org>
* international/uni-bidi.el: Regenerated.
2011-08-23 Kenichi Handa <handa@m17n.org>
* international/charprop.el:
......
lisp/international/uni-bidi.el
View file @ bca633fb
......@@ -6,7 +6,7 @@
#^^[3 0 5 5 5 5 5 5 5 5 5 17 6 17 18 6 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 17 18 19 19 14 14 14 19 19 19 19 19 13 15 13 15 15 3 3 3 3 3 3 3 3 3 3 15 19 19 19 19 19 19 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19 19 19 19 19 19 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19 19 19 19 5] #^^[1 0 #^^[2 0
#^^[3 0 5 5 5 5 5 5 5 5 5 17 6 17 18 6 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 17 18 19 19 14 14 14 19 19 19 19 19 13 15 13 15 15 3 3 3 3 3 3 3 3 3 3 15 19 19 19 19 19 19 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19 19 19 19 19 19 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19 19 19 19 5] "…š„„ƒ…—Ÿˆ" 1 1 1 "¹‡ŽŽ…‰‘" "ð„ˆ" "„î‰" 1 "ƒ‡ö" 1 "Š…­¸" "„‹°•Šƒ" "Ö‡†„Š†" "Žž›³" "¦‹Ž«‰„†" "–„‰ƒ…«ƒ¤" 2 "ƒ·„ˆ„ƒ‡Šœ" "º„„ˆ”Ž‡„" "¹„„ƒƒžƒŠ" "¹„…„”Ž" "º„ˆˆ‹œ" "½Œ¥†…" "¾ƒ…ƒ„‡‹”‡" "¼”œ" "Á„ˆ”œ" "ʇƒ©" "±‡„‡ˆ±" "±†‹†²" "˜›„³Ž" "……‹¤‰¹"] #^^[2 4096 "­„†™„ƒ„‹" "†â" 1 1 1 1 "݃ " "Šæ" "ÿ" 1 1 1 1 "šã" "’ƒƒžŒ" "·‡ˆ‹‡’Š†" "‹ƒñ" "©Ö" " ƒ„‰†ƒ„ƒº" "Þ¢" "—½‡ˆ†Š" 1 "„°……¨‰Œ" " „¼ƒƒŽ" "¬ˆÈ" "Ѓ‡„’" 1 "À§•„" 1 1 1 "½ƒ‹ƒƒƒ"] #^^[2 8192 "‹ƒ˜
…š……†ƒ† ƒ" "Š ƒ‘š–¡" "„Šƒ…†„‹„……„ " "‰†ð" "’ ì" 19 "¶Å…" "•ÞŒ" "§™‹• " "ˆ”Ζ" 19 19 19 "¬Ó" "ÿ" "˲" 1 1 19 19 19 19 "̓Š¦" 1 1 "冄ƒ‡‡" "ÿ" "à " "²Î" "šÙŒ" 19 "ÖšŒ„"] #^^[2 12288 "„ƒ™‰†……ƒÀ" "™ƒÚ„" 1 "À¤œ" "±œƒ" "±Œ„°" "÷„…" "ÞŸ" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 16384 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 "ÀÀ" 1 1 1 1] 1 1 1 1 #^^[2 36864 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
#^^[3 40832 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]] #^^[2 40960 1 1 1 1 1 1 1 1 1 "·¹" 1 1 "ƒß„ˆ" "ðŽ" "¢Þ" "ˆ÷" "ƒ„™„Œº„ˆ" "Ä›’Ž" "¦ˆ™‹®" "ƒ°„Ã" "©†Œˆ³" "°ƒ…¾" 1 "å„’" 1 1 1 1 1 1 1 1] 1 1 #^^[2 53248 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 #^^[2 61440 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 "Š ¦°" "‘­" 7 7 "¾°" "¶¨" "Š†‡‰ ‰ ƒ„…Š" "ý" "ƒ…  Š†š†š‹š" "àƒ‡Š…"]] #^^[1 65536 #^^[2 65536 1 1 "¾À" "‹…Œá" 1 1 1 1 1 1 1 1 1 1 1 1 2 2 "Ÿà" 2 "ƒ…„¨ƒ„À" 2 "¹‡À" 2 2 2 2 2 "àŸ" 2 2 2] #^^[2 69632 "¶‹”š" "±„Å" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 73728 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 77824 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 #^^[2 90112 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 1 #^^[2 110592 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 #^^[2 118784 1 1 "烉ˆ…" "ƒ‡ž„Ò" "ƒº" 1 "ש" 1 1 1 1 1 1 "Û¤" "•¹°" "‰¹Š²" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 122880 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2] #^^[2 126976 "¬„Ð" "”ŒŽ " "‹õ" 1 1 1 "¡†Æƒ" "”Œ¥…•‘" "¿¾" "Œë„ƒ" "¤™’˜˜" "û…" "ƒƒ†„„Œ„‹°" "ƺ" "ôŒ" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]] #^^[1 131072 1 1 1 1 1 1 1 1 1 1 #^^[2 172032 1 1 1 1 1 1 1 1 1 1 1 1 1
#^^[3 40832 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]] #^^[2 40960 1 1 1 1 1 1 1 1 1 "·¹" 1 1 "ƒß„ˆ" "ðŽ" "¢Þ" "ˆ÷" "ƒ„™„Œº„ˆ" "Ä›’Ž" "¦ˆ™‹®" "ƒ°„Ã" "©†Œˆ³" "°ƒ…¾" 1 "å„’" 1 1 1 1 1 1 1 1] 1 1 #^^[2 53248 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 #^^[2 61440 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 "Š ¦°" 7 7 7 "¾À" "ý" "Š†‡‰ ‰ ƒ„" "ÿ" "ƒ…  Š†š†š‹š" "àƒ‡Š…"]] #^^[1 65536 #^^[2 65536 1 1 "¾À" "‹…Œá" 1 1 1 1 1 1 1 1 1 1 1 1 2 2 "Ÿà" 2 "ƒ…„¨ƒ„À" 2 "¹‡À" 2 2 2 2 2 "àŸ" 2 2 2] #^^[2 69632 "¶‹”š" "±„Å" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 73728 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 77824 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 #^^[2 90112 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 1 #^^[2 110592 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 #^^[2 118784 1 1 "烉ˆ…" "ƒ‡ž„Ò" "ƒº" 1 "ש" 1 1 1 1 1 1 "Û¤" "•¹°" "‰¹Š²" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 122880 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2] #^^[2 126976 "¬„Ð" "”ŒŽ " "‹õ" 1 1 1 "¡†Æƒ" "”Œ¥…•‘" "¿¾" "Œë„ƒ" "¤™’˜˜" "û…" "ƒƒ†„„Œ„‹°" "ƺ" "ôŒ" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]] #^^[1 131072 1 1 1 1 1 1 1 1 1 1 #^^[2 172032 1 1 1 1 1 1 1 1 1 1 1 1 1
#^^[3 173696 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[2 176128 1 1 1 1 1 1 1 1 1 1 1 1 1 1
#^^[3 177920 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1
#^^[3 178176 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 #^^[2 192512 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1]] 1 1 1 1 1 1 1 1 1 1 1 #^^[1 917504 #^^[2 917504 "žà" 1 16 "ð" 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] #^^[1 983040 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 #^^[2 1044480 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
......
src/ChangeLog
View file @ bca633fb
2011-08-23 Eli Zaretskii <eliz@gnu.org>
* bidi.c (bidi_get_type): Abort if we get zero as the bidi type of
a character.
2011-08-23 Chong Yidong <cyd@stupidchicken.com>
* nsfont.m (ns_otf_to_script): Fix typo.
......
src/bidi.c
View file @ bca633fb
......@@ -108,8 +108,12 @@ bidi_get_type (int ch, bidi_dir_t override)
abort ();
default_type = (bidi_type_t) XINT (CHAR_TABLE_REF (bidi_type_table, ch));
if (default_type == 0)
default_type = STRONG_L;
/* Every valid character code, even those that are unassigned by the
UCD, have some bidi-class property, according to
DerivedBidiClass.txt file. Therefore, if we ever get UNKNOWN_BT
(= zero) code from CHAR_TABLE_REF, that's a bug. */
if (default_type == UNKNOWN_BT)
abort ();
if (override == NEUTRAL_DIR)
return default_type;
......
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