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Fix and document display of glyphless characters.
src/xdisp.c (set_cursor_from_row): Fix cursor positioning on zero-width characters. (syms_of_xdisp) <glyphless-char-display>: Doc fix. src/.gdbinit (pgx): Adapt to latest changes in `struct glyph'. src/w32term.c (x_draw_glyphless_glyph_string_foreground): Draw the box before drawing the glyphs inside it. src/dispextern.h (enum glyphless_display_method): Rename GLYPHLESS_DISPLAY_HEXA_CODE to GLYPHLESS_DISPLAY_HEX_CODE. All users changed. src/term.c (append_glyphless_glyph, produce_glyphless_glyph): Fix comments. (produce_glyphless_glyph): Enclose "U+nnnn" and "empty box" whitespace in "[]", to simulate a box. Don't use uninitialized variable `width'. lisp/international/characters.el (glyphless-char-display-control): Renamed from glyphless-char-control; all users changed. Doc fix. Signal an error if display method is not one of the recognized symbols. doc/emacs/rmail.texi (Rmail Coding): Characters with no fonts are not necessarily displayed as empty boxes. doc/emacs/mule.texi (Language Environments, Fontsets): Characters with no fonts are not necessarily displayed as empty boxes. doc/emacs/display.texi (Text Display): Document display of glyphless characters. doc/lispref/display.texi (Usual Display): Characters with no fonts are not necessarily displayed as empty boxes. etc/NEWS: Document display of glyphless characters.
This commit is contained in:
Eli Zaretskii
parent
6e060cee81
commit
0eb025fb55
@ -1,3 +1,14 @@
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2010-11-13 Eli Zaretskii <eliz@gnu.org>
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* rmail.texi (Rmail Coding): Characters with no fonts are not
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necessarily displayed as empty boxes.
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* mule.texi (Language Environments, Fontsets): Characters with no
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fonts are not necessarily displayed as empty boxes.
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* display.texi (Text Display): Document display of glyphless
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characters.
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2010-11-13 Glenn Morris <rgm@gnu.org>
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* basic.texi (Position Info): Add M-x count-words-region.
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@ -1136,6 +1136,48 @@ prefix these characters with an escape character.
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by means of a display table. @xref{Display Tables,, Display Tables,
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elisp, The Emacs Lisp Reference Manual}.
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@cindex glyphless characters
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@cindex characters with no font glyphs
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On graphics displays, some characters could have no glyphs in any of
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the fonts available to Emacs. On text terminals, some characters
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could be impossible to encode with the terminal coding system
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(@pxref{Terminal Coding}). Emacs can display such @dfn{glyphless}
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characters using one of the following methods:
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@table @code
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@item zero-width
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Don't display the character.
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@item thin-space
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Display a thin space, 1-pixel wide on graphics displays or 1-character
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wide on text terminals.
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@item empty-box
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Display an empty box.
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@item acronym
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Display the acronym of the character's name (such as @sc{zwnj} or
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@sc{rlm}) in a box.
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@item hex-code
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Display the Unicode codepoint of the character in hexadecimal
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notation, in a box.
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@end table
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@noindent
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@cindex @code{glyphless-char} face
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With the exception of @code{zero-width}, all other methods draw these
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characters in a special face @code{glyphless-char}, which you can
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customize.
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@vindex glyphless-char-display-control
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@vindex char-acronym-table
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To control what glyphless characters are displayed using which method,
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customize the variable @code{glyphless-char-display-control}; see its
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doc string for the details. For even finer control, set the elements
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of 2 char-tables: @code{glyphless-char-display} and
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@code{char-acronym-table}.
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@node Cursor Display
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@section Displaying the Cursor
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@ -351,10 +351,11 @@ which prefers Cyrillic characters and files encoded in Windows-1255).
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@cindex Intlfonts package, installation
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To display the script(s) used by your language environment on a
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graphical display, you need to have a suitable font. If some of the
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characters appear as empty boxes, you should install the GNU Intlfonts
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package, which includes fonts for most supported scripts.@footnote{If
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you run Emacs on X, you need to inform the X server about the location
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of the newly installed fonts with the following commands:
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characters appear as empty boxes or hex codes, you should install the
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GNU Intlfonts package, which includes fonts for most supported
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scripts.@footnote{If you run Emacs on X, you need to inform the X
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server about the location of the newly installed fonts with the
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following commands:
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@example
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xset fp+ /usr/local/share/emacs/fonts
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@ -1314,10 +1315,11 @@ characters the font does not cover. The standard fontset is only used if
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explicitly requested, despite its name.
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A fontset does not necessarily specify a font for every character
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code. If a fontset specifies no font for a certain character, or if it
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specifies a font that does not exist on your system, then it cannot
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display that character properly. It will display that character as an
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empty box instead.
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code. If a fontset specifies no font for a certain character, or if
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it specifies a font that does not exist on your system, then it cannot
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display that character properly. It will display that character as a
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hex code or thin space or an empty box instead. (@xref{Text Display,
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glyphless characters}, for details.)
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@node Defining Fontsets
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@section Defining fontsets
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@ -1192,7 +1192,8 @@ specification, or because the specification was inaccurate. For
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example, a misconfigured mailer could send a message with a
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@samp{charset=iso-8859-1} header when the message is actually encoded
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in @code{koi8-r}. When you see the message text garbled, or some of
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its characters displayed as empty boxes, this may have happened.
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its characters displayed as hex codes or empty boxes, this may have
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happened.
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@findex rmail-redecode-body
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You can correct the problem by decoding the message again using the
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@ -1,3 +1,8 @@
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2010-11-13 Eli Zaretskii <eliz@gnu.org>
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* display.texi (Usual Display): Characters with no fonts are not
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necessarily displayed as empty boxes.
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2010-10-31 Glenn Morris <rgm@gnu.org>
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* maps.texi (Standard Keymaps): Update File menu description.
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@ -5579,9 +5579,9 @@ digit characters representing the character code in octal. (A display
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table can specify a glyph to use instead of @samp{\}.)
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@item
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Multibyte character codes above 256 are displayed as themselves, or as a
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question mark or empty box if the terminal cannot display that
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character.
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Multibyte character codes above 256 are displayed as themselves, or as
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a question mark or a hex code or an empty box if the terminal cannot
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display that character.
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@end itemize
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The usual display conventions apply even when there is a display
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@ -1,3 +1,7 @@
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2010-11-13 Eli Zaretskii <eliz@gnu.org>
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* NEWS: Document display of glyphless characters.
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2010-11-11 Eric Schulte <schulte.eric@gmail.com>
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* refcards/orgcard.tex: Add new Babel key sequences.
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12
etc/NEWS
12
etc/NEWS
@ -138,6 +138,18 @@ with Xft. To change font, use X resource faceName, for example:
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Emacs.pane.menubar.faceName: Courier-12
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Set faceName to none and use font to use the old X fonts.
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+++
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** Enhanced support for characters that have no glyphs in available fonts
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If a character has no glyphs in any of the available fonts, Emacs by
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default will display it either as a hexadecimal code in a box or as a
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thin 1-pixel space. In addition to these two methods, Emacs can
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display these characters as empty box, as an acronym, or not display
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them at all. To change how these characters are displayed, customize
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the variable `glyphless-char-display-control'.
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On character terminals these methods are used for characters that
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cannot be encoded by the `terminal-coding-system'.
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** On graphical displays, the mode-line no longer ends in dashes.
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** Basic SELinux support has been added.
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@ -1,3 +1,9 @@
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2010-11-13 Eli Zaretskii <eliz@gnu.org>
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* international/characters.el (glyphless-char-display-control):
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Doc fix. Signal an error if display method is not one of the
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recognized symbols.
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2010-11-13 Michael Albinus <michael.albinus@gmx.de>
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* net/tramp-compat.el (tramp-compat-line-beginning-position)
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@ -1294,40 +1294,48 @@ Setup char-width-table appropriate for non-CJK language environment."
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(aset char-acronym-table #xE007F "->|TAG") ; CANCEL TAG
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;;; Control of displaying glyphless characters.
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(defvar glyphless-char-control
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(defvar glyphless-char-display-control
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'((format-control . thin-space)
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(no-font . hexa-code))
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"List of directives to control displaying of glyphless characters.
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(no-font . hex-code))
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"List of directives to control display of glyphless characters.
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Each element has the form (TARGET . METHOD), where TARGET is a
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symbol specifying the target character group to control, and
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METHOD is a symbol specifying the method of displaying them.
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Each element has the form (GROUP . METHOD), where GROUP is a
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symbol specifying the character group, and METHOD is a symbol
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specifying the method of displaying characters belonging to that
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group.
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TARGET must be one of these symbols:
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GROUP must be one of these symbols:
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`c0-control': U+0000..U+001F.
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`c1-control': U+0080..U+009F.
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`format-control': Characters of Unicode General Category `Cf'.
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Ex: U+200C (ZWNJ), U+200E (LRM)), but don't include characters
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that have graphic image such as U+00AD (SHY).
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`format-control': Characters of Unicode General Category `Cf',
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such as U+200C (ZWNJ), U+200E (LRM), but
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excluding characters that have graphic images,
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such as U+00AD (SHY).
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`no-font': characters for which no suitable font is found.
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For character terminals, characters that cannot
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be encoded by `terminal-coding-system'.
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METHOD must be one of these symbols:
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`zero-width': don't display.
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`thin-space': display a thin space (1-pixel width).
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`thin-space': display a thin (1-pixel width) space. On character
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terminals, display as 1-character space.
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`empty-box': display an empty box.
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`acronym': display an acronum string in a box.
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`hexa-code': display a hexadecimal character code in a box.
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`acronym': display an acronym of the character in a box. The
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acronym is taken from `char-acronym-table', which see.
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`hex-code': display the hexadecimal character code in a box.
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Just setting this variable does not take effect. Call the
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function `update-glyphless-char-display' (which see) after
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setting this variable.")
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(defun update-glyphless-char-display ()
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"Make the setting of `glyphless-char-control' take effect.
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"Make the setting of `glyphless-char-display-control' take effect.
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This function updates the char-table `glyphless-char-display'."
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(dolist (elt glyphless-char-control)
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(dolist (elt glyphless-char-display-control)
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(let ((target (car elt))
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(method (cdr elt)))
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(or (memq method '(zero-width thin-space empty-box acronym hex-code))
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(error "Invalid glyphless character display method: %s" method))
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(cond ((eq target 'c0-control)
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(set-char-table-range glyphless-char-display '(#x00 . #x1F)
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method))
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@ -1355,7 +1363,7 @@ This function updates the char-table `glyphless-char-display'."
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((eq target 'no-font)
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(set-char-table-extra-slot glyphless-char-display 0 method))
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(t
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(error "Invalid target character group: %s" target))))))
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(error "Invalid glyphless character group: %s" target))))))
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(update-glyphless-char-display)
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26
src/.gdbinit
26
src/.gdbinit
@ -494,14 +494,30 @@ define pgx
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end
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# COMPOSITE_GLYPH
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if ($g->type == 1)
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printf "COMP[%d (%d..%d)]", $g->u.cmp.id, $g->u.cmp.from, $g->u.cmp.to
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printf "COMP[%d (%d..%d)]", $g->u.cmp.id, $g->slice.cmp.from, $g->slice.cmp.to
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end
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# GLYPHLESS_GLYPH
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if ($g->type == 2)
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printf "GLYPHLESS["
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if ($g->u.glyphless.method == 0)
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printf "THIN]"
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end
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if ($g->u.glyphless.method == 1)
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printf "EMPTY]"
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end
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if ($g->u.glyphless.method == 2)
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printf "ACRO]"
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end
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if ($g->u.glyphless.method == 3)
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printf "HEX]"
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end
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end
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# IMAGE_GLYPH
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if ($g->type == 2)
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if ($g->type == 3)
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printf "IMAGE[%d]", $g->u.img_id
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end
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# STRETCH_GLYPH
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if ($g->type == 3)
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if ($g->type == 4)
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printf "STRETCH[%d+%d]", $g->u.stretch.height, $g->u.stretch.ascent
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end
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xgettype ($g->object)
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@ -544,8 +560,8 @@ define pgx
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if ($g->right_box_line_p)
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printf " ]"
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end
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if ($g->slice.x || $g->slice.y || $g->slice.width || $g->slice.height)
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printf " slice=%d,%d,%d,%d" ,$g->slice.x, $g->slice.y, $g->slice.width, $g->slice.height
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if ($g->slice.img.x || $g->slice.img.y || $g->slice.img.width || $g->slice.img.height)
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printf " slice=%d,%d,%d,%d" ,$g->slice.img.x, $g->slice.img.y, $g->slice.img.width, $g->slice.img.height
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end
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printf "\n"
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end
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@ -1,3 +1,25 @@
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2010-11-13 Eli Zaretskii <eliz@gnu.org>
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* xdisp.c (set_cursor_from_row): Fix cursor positioning on
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zero-width characters.
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* .gdbinit (pgx): Adapt to latest changes in `struct glyph'.
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* w32term.c (x_draw_glyphless_glyph_string_foreground): Draw the
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box before drawing the glyphs inside it.
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* xdisp.c (syms_of_xdisp) <glyphless-char-display>: Doc fix.
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* dispextern.h (enum glyphless_display_method): Rename
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GLYPHLESS_DISPLAY_HEXA_CODE to GLYPHLESS_DISPLAY_HEX_CODE. All
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users changed.
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* term.c (append_glyphless_glyph, produce_glyphless_glyph): Fix
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comments.
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(produce_glyphless_glyph): Enclose "U+nnnn" and "empty box"
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whitespace in "[]", to simulate a box. Don't use uninitialized
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variable `width'.
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2010-11-11 Julien Danjou <julien@danjou.info>
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* xsettings.c (init_xsettings): Use already fetch atoms.
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@ -371,12 +371,11 @@ struct glyph
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displaying. The member `pixel_width' above is set to 1. */
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unsigned padding_p : 1;
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/* 1 means the actual glyph is not available, draw a box instead.
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This can happen when a font couldn't be loaded, or a character
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doesn't have a glyph in a font. */
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/* 1 means the actual glyph is not available, draw using `struct
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glyphless' below instead. This can happen when a font couldn't
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be loaded, or a character doesn't have a glyph in a font. */
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unsigned glyph_not_available_p : 1;
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/* Non-zero means don't display cursor here. */
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unsigned avoid_cursor_p : 1;
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@ -1997,14 +1996,15 @@ enum line_wrap_method
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enum glyphless_display_method
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{
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/* Display a thin (1-pixel width) space. */
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/* Display a thin (1-pixel width) space. On a TTY, display a
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1-character width space. */
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GLYPHLESS_DISPLAY_THIN_SPACE,
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/* Display an empty box of proper width. */
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GLYPHLESS_DISPLAY_EMPTY_BOX,
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/* Display an acronym string in a box. */
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GLYPHLESS_DISPLAY_ACRONYM,
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/* Display a hexadecimal character code in a box. */
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GLYPHLESS_DISPLAY_HEXA_CODE
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/* Display the hexadecimal code of the character in a box. */
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GLYPHLESS_DISPLAY_HEX_CODE
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};
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struct it_slice
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33
src/term.c
33
src/term.c
@ -1850,9 +1850,9 @@ produce_composite_glyph (struct it *it)
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/* Append a glyph for a glyphless character to IT->glyph_row. FACE_ID
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is a face ID to be used for the glyph. What actually appended are
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glyphs of type CHAR_GLYPH of which characters are in STR
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(it->nglyphs bytes). */
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is a face ID to be used for the glyph. What is actually appended
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are glyphs of type CHAR_GLYPH whose characters are in STR (which
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comes from it->nglyphs bytes). */
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static void
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append_glyphless_glyph (struct it *it, int face_id, char *str)
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@ -1923,7 +1923,7 @@ extern Lisp_Object Qglyphless_char;
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/* Produce glyphs for a glyphless character for iterator IT.
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IT->glyphless_method specifies which method to use for displaying
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the character. See the description of enum
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glyphless_display_method in dispextern.h for the detail.
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glyphless_display_method in dispextern.h for the details.
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FOR_NO_FONT is nonzero if and only if this is for a character that
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is not supproted by the coding system of the terminal. ACRONYM, if
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@ -1935,11 +1935,11 @@ static void
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produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
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{
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int face_id;
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int width, len;
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char buf[9], *str = " ";
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int len;
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char buf[11], *str = " ";
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/* Get a face ID for the glyph by utilizing a cache (the same way as
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doen for `escape-glyph' in get_next_display_element). */
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done for `escape-glyph' in get_next_display_element). */
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if (it->f == last_glyphless_glyph_frame
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&& it->face_id == last_glyphless_glyph_face_id)
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{
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@ -1956,8 +1956,8 @@ produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
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if (it->glyphless_method == GLYPHLESS_DISPLAY_THIN_SPACE)
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{
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/* As there's no way to produce a thin space, we produce
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a space of canonical width.. */
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/* As there's no way to produce a thin space, we produce a space
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of canonical width. */
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len = 1;
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}
|
||||
else if (it->glyphless_method == GLYPHLESS_DISPLAY_EMPTY_BOX)
|
||||
@ -1965,8 +1965,11 @@ produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
|
||||
len = CHAR_WIDTH (it->c);
|
||||
if (len == 0)
|
||||
len = 1;
|
||||
else if (width > 4)
|
||||
else if (len > 4)
|
||||
len = 4;
|
||||
sprintf (buf, "[%.*s]", len, str);
|
||||
len += 2;
|
||||
str = buf;
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -1983,11 +1986,11 @@ produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
|
||||
}
|
||||
else
|
||||
{
|
||||
xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEXA_CODE);
|
||||
len = (it->c < 0x100 ? sprintf (buf, "U+%02X", it->c)
|
||||
: it->c < 0x10000 ? sprintf (buf, "U+%04X", it->c)
|
||||
: it->c <= MAX_UNICODE_CHAR ? sprintf (buf, "U+%06X", it->c)
|
||||
: sprintf (buf, "E+%06X", it->c));
|
||||
xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEX_CODE);
|
||||
len = (it->c < 0x100 ? sprintf (buf, "[U+%02X]", it->c)
|
||||
: it->c < 0x10000 ? sprintf (buf, "[U+%04X]", it->c)
|
||||
: it->c <= MAX_UNICODE_CHAR ? sprintf (buf, "[U+%06X]", it->c)
|
||||
: sprintf (buf, "[E+%06X]", it->c));
|
||||
}
|
||||
str = buf;
|
||||
}
|
||||
|
||||
@ -1440,7 +1440,7 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
|
||||
str = (char *) SDATA (acronym);
|
||||
}
|
||||
}
|
||||
else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEXA_CODE)
|
||||
else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
|
||||
{
|
||||
sprintf ((char *) buf, "%0*X",
|
||||
glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
|
||||
@ -1448,6 +1448,11 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
|
||||
str = buf;
|
||||
}
|
||||
|
||||
if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
|
||||
w32_draw_rectangle (s->hdc, s->gc,
|
||||
x, s->ybase - glyph->ascent,
|
||||
glyph->pixel_width - 1,
|
||||
glyph->ascent + glyph->descent - 1);
|
||||
if (str)
|
||||
{
|
||||
struct font *font = s->font;
|
||||
@ -1456,7 +1461,7 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
|
||||
HFONT old_font;
|
||||
|
||||
old_font = SelectObject (s->hdc, FONT_HANDLE (font));
|
||||
/* It is assured that all LEN characters in STR is ASCII. */
|
||||
/* It is certain that all LEN characters in STR are ASCII. */
|
||||
for (j = 0; j < len; j++)
|
||||
{
|
||||
code = font->driver->encode_char (font, str[j]);
|
||||
@ -1472,11 +1477,6 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
|
||||
with_background);
|
||||
SelectObject (s->hdc, old_font);
|
||||
}
|
||||
if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
|
||||
w32_draw_rectangle (s->hdc, s->gc,
|
||||
x, s->ybase - glyph->ascent,
|
||||
glyph->pixel_width - 1,
|
||||
glyph->ascent + glyph->descent - 1);
|
||||
x += glyph->pixel_width;
|
||||
}
|
||||
}
|
||||
|
||||
26
src/xdisp.c
26
src/xdisp.c
@ -971,7 +971,7 @@ Lisp_Object Vglyphless_char_display;
|
||||
Lisp_Object Qglyphless_char_display;
|
||||
|
||||
/* Method symbols for Vglyphless_char_display. */
|
||||
static Lisp_Object Qhexa_code, Qempty_box, Qthin_space, Qzero_width;
|
||||
static Lisp_Object Qhex_code, Qempty_box, Qthin_space, Qzero_width;
|
||||
|
||||
/* Default pixel width of `thin-space' display method. */
|
||||
#define THIN_SPACE_WIDTH 1
|
||||
@ -5813,8 +5813,8 @@ lookup_glyphless_char_display (int c, struct it *it)
|
||||
it->glyphless_method = GLYPHLESS_DISPLAY_THIN_SPACE;
|
||||
else if (EQ (glyphless_method, Qempty_box))
|
||||
it->glyphless_method = GLYPHLESS_DISPLAY_EMPTY_BOX;
|
||||
else if (EQ (glyphless_method, Qhexa_code))
|
||||
it->glyphless_method = GLYPHLESS_DISPLAY_HEXA_CODE;
|
||||
else if (EQ (glyphless_method, Qhex_code))
|
||||
it->glyphless_method = GLYPHLESS_DISPLAY_HEX_CODE;
|
||||
else if (STRINGP (glyphless_method))
|
||||
it->glyphless_method = GLYPHLESS_DISPLAY_ACRONYM;
|
||||
else
|
||||
@ -12871,10 +12871,10 @@ set_cursor_from_row (struct window *w, struct glyph_row *row,
|
||||
|| (row->truncated_on_left_p && pt_old < bpos_min)
|
||||
|| (row->truncated_on_right_p && pt_old > bpos_max)
|
||||
/* Zero-width characters produce no glyphs. */
|
||||
|| ((row->reversed_p
|
||||
|| (!string_seen
|
||||
&& (row->reversed_p
|
||||
? glyph_after > glyphs_end
|
||||
: glyph_after < glyphs_end)
|
||||
&& eabs (glyph_after - glyph_before) == 1))
|
||||
: glyph_after < glyphs_end)))
|
||||
{
|
||||
cursor = glyph_after;
|
||||
x = -1;
|
||||
@ -22292,7 +22292,7 @@ calc_line_height_property (struct it *it, Lisp_Object val, struct font *font,
|
||||
and only if this is for a character for which no font was found.
|
||||
|
||||
If the display method (it->glyphless_method) is
|
||||
GLYPHLESS_DISPLAY_ACRONYM or GLYPHLESS_DISPLAY_HEXA_CODE, LEN is a
|
||||
GLYPHLESS_DISPLAY_ACRONYM or GLYPHLESS_DISPLAY_HEX_CODE, LEN is a
|
||||
length of the acronym or the hexadecimal string, UPPER_XOFF and
|
||||
UPPER_YOFF are pixel offsets for the upper part of the string,
|
||||
LOWER_XOFF and LOWER_YOFF are for the lower part.
|
||||
@ -22441,7 +22441,7 @@ produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
|
||||
}
|
||||
else
|
||||
{
|
||||
xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEXA_CODE);
|
||||
xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEX_CODE);
|
||||
sprintf (buf, "%0*X", it->c < 0x10000 ? 4 : 6, it->c);
|
||||
str = buf;
|
||||
}
|
||||
@ -27057,7 +27057,7 @@ cursor shapes. */);
|
||||
hourglass_shown_p = 0;
|
||||
|
||||
DEFSYM (Qglyphless_char, "glyphless-char");
|
||||
DEFSYM (Qhexa_code, "hexa-code");
|
||||
DEFSYM (Qhex_code, "hex-code");
|
||||
DEFSYM (Qempty_box, "empty-box");
|
||||
DEFSYM (Qthin_space, "thin-space");
|
||||
DEFSYM (Qzero_width, "zero-width");
|
||||
@ -27073,13 +27073,13 @@ cursor shapes. */);
|
||||
doc: /* Char-table to control displaying of glyphless characters.
|
||||
Each element, if non-nil, is an ASCII acronym string (displayed in a box)
|
||||
or one of these symbols:
|
||||
hexa-code: display with hexadecimal character code in a box
|
||||
empty-box: display with an empty box
|
||||
thin-space: display with 1-pixel width space
|
||||
hex-code: display the hexadecimal code of a character in a box
|
||||
empty-box: display as an empty box
|
||||
thin-space: display as 1-pixel width space
|
||||
zero-width: don't display
|
||||
|
||||
It has one extra slot to control the display of a character for which
|
||||
no font is found. The value of the slot is `hexa-code' or `empty-box'.
|
||||
no font is found. The value of the slot is `hex-code' or `empty-box'.
|
||||
The default is `empty-box'. */);
|
||||
Vglyphless_char_display = Fmake_char_table (Qglyphless_char_display, Qnil);
|
||||
Fset_char_table_extra_slot (Vglyphless_char_display, make_number (0),
|
||||
|
||||
@ -1369,7 +1369,7 @@ x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
|
||||
str = (char *) SDATA (acronym);
|
||||
}
|
||||
}
|
||||
else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEXA_CODE)
|
||||
else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
|
||||
{
|
||||
sprintf ((char *) buf, "%0*X",
|
||||
glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user