From: Yixuan Chen <xuan@xlk.me>
To: Eli Zaretskii <eliz@gnu.org>
Cc: luangruo@yahoo.com, 73752@debbugs.gnu.org, visuweshm@gmail.com
Subject: bug#73752: 29.4; Ligatures are randomly rendered with extra spaces
Date: Mon, 28 Oct 2024 11:20:29 -0400 [thread overview]
Message-ID: <0b859951-92ec-4125-be4e-5f0d2088e872@xlk.me> (raw)
In-Reply-To: <86h68w6zet.fsf@gnu.org>
[-- Attachment #1: Type: text/plain, Size: 2322 bytes --]
On 10/28/24 11:05, Eli Zaretskii wrote:
>> Date: Mon, 28 Oct 2024 10:44:23 -0400
>> Cc: visuweshm@gmail.com, luangruo@yahoo.com, 73752@debbugs.gnu.org
>> From: Yixuan Chen <xuan@xlk.me>
>>
>>> Is
>>> that extra space a real SPC glyph or is it just that the ligature is
>>> considered "wider"? What happens if you put the cursor on the ▷
>>> ligature in the "bad" display -- does the block cursor then take up
>>> all the space up to the next quote?
>>
>> It's not a real SPC glyph. It's a single character ▷ (or ligature/glyph
>> I should call it? the underlying text is "|||>"). I attached five
>> screenshots, where the block cursor is at ", |, |, |, >, " respectively.
>> Noticeably, the block cursor for the first | character (1_bar.png) is
>> extra wide, and the block cursors for the following characters looks
>> offset from where they are.
>
> According to the screenshots, it actually looks like it's a real SPC
> glyph or something. What does "C-u C-x =" show when the block cursor
> is shown as below?
It shows
> position: 1277 of 3527 (36%), column: 34
> character: > (displayed as >) (codepoint 62, #o76, #x3e)
> charset: ascii (ASCII (ISO646 IRV))
> code point in charset: 0x3E
> script: latin
> syntax: _ which means: symbol
> category: .:Base, a:ASCII, l:Latin, r:Roman
> to input: type "C-x 8 RET 3e" or "C-x 8 RET GREATER-THAN SIGN"
> buffer code: #x3E
> file code: #x3E (encoded by coding system utf-8-unix)
> display: by this font (glyph code):
> ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x810)
>
> Character code properties: customize what to show
> name: GREATER-THAN SIGN
> general-category: Sm (Symbol, Math)
> decomposition: (62) ('>')
>
> There are text properties here:
> face (face12 font-lock-string-face)
> fontified t
> Actually, how about showing what "C-u C-x =" says in each of the 6
> positions you show? And then show what "C-u C-x =" says in the same 6
> positions in the "good" display?
See "bad.txt" for the output of the bad emacs display, and "good.txt"
for the output of good emacs display. I also attached the block cursor
screenshots for good emacs display.
[-- Attachment #2: good.txt --]
[-- Type: text/plain, Size: 5447 bytes --]
0:
position: 1273 of 3535 (36%), column: 30
character: " (displayed as ") (codepoint 34, #o42, #x22)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x22
script: latin
syntax: " which means: string
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 22" or "C-x 8 RET QUOTATION MARK"
buffer code: #x22
file code: #x22 (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x779)
Character code properties: customize what to show
name: QUOTATION MARK
general-category: Po (Punctuation, Other)
decomposition: (34) ('"')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
1:
position: 1274 of 3535 (36%), column: 31
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
2:
position: 1275 of 3535 (36%), column: 32
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
3:
position: 1276 of 3535 (36%), column: 33
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
4:
position: 1277 of 3535 (36%), column: 34
character: > (displayed as >) (codepoint 62, #o76, #x3e)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x3E
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 3e" or "C-x 8 RET GREATER-THAN SIGN"
buffer code: #x3E
file code: #x3E (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x810)
Character code properties: customize what to show
name: GREATER-THAN SIGN
general-category: Sm (Symbol, Math)
decomposition: (62) ('>')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
5:
position: 1278 of 3535 (36%), column: 35
character: " (displayed as ") (codepoint 34, #o42, #x22)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x22
script: latin
syntax: " which means: string
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 22" or "C-x 8 RET QUOTATION MARK"
buffer code: #x22
file code: #x22 (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x779)
Character code properties: customize what to show
name: QUOTATION MARK
general-category: Po (Punctuation, Other)
decomposition: (34) ('"')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
[-- Attachment #3: bad.txt --]
[-- Type: text/plain, Size: 5446 bytes --]
0:
position: 1273 of 3527 (36%), column: 30
character: " (displayed as ") (codepoint 34, #o42, #x22)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x22
script: latin
syntax: " which means: string
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 22" or "C-x 8 RET QUOTATION MARK"
buffer code: #x22
file code: #x22 (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x779)
Character code properties: customize what to show
name: QUOTATION MARK
general-category: Po (Punctuation, Other)
decomposition: (34) ('"')
1:
There are text properties here:
face (face12 font-lock-string-face)
fontified t
position: 1274 of 3527 (36%), column: 31
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
2:
There are text properties here:
face (face12 font-lock-string-face)
fontified t
position: 1274 of 3527 (36%), column: 31
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
3:
There are text properties here:
face (face12 font-lock-string-face)
fontified t
position: 1276 of 3527 (36%), column: 33
character: | (displayed as |) (codepoint 124, #o174, #x7c)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x7C
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 7c" or "C-x 8 RET VERTICAL LINE"
buffer code: #x7C
file code: #x7C (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x9F6)
Character code properties: customize what to show
name: VERTICAL LINE
old-name: VERTICAL BAR
general-category: Sm (Symbol, Math)
decomposition: (124) ('|')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
4:
position: 1277 of 3527 (36%), column: 34
character: > (displayed as >) (codepoint 62, #o76, #x3e)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x3E
script: latin
syntax: _ which means: symbol
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 3e" or "C-x 8 RET GREATER-THAN SIGN"
buffer code: #x3E
file code: #x3E (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x810)
Character code properties: customize what to show
name: GREATER-THAN SIGN
general-category: Sm (Symbol, Math)
decomposition: (62) ('>')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
5:
position: 1278 of 3527 (36%), column: 35
character: " (displayed as ") (codepoint 34, #o42, #x22)
charset: ascii (ASCII (ISO646 IRV))
code point in charset: 0x22
script: latin
syntax: " which means: string
category: .:Base, a:ASCII, l:Latin, r:Roman
to input: type "C-x 8 RET 22" or "C-x 8 RET QUOTATION MARK"
buffer code: #x22
file code: #x22 (encoded by coding system utf-8-unix)
display: by this font (glyph code):
ftcrhb:-SAJA-Cascadia Code-light-normal-normal-*-17-*-*-*-m-0-iso10646-1 (#x779)
Character code properties: customize what to show
name: QUOTATION MARK
general-category: Po (Punctuation, Other)
decomposition: (34) ('"')
There are text properties here:
face (face12 font-lock-string-face)
fontified t
[-- Attachment #4: 0.png --]
[-- Type: image/png, Size: 1630 bytes --]
[-- Attachment #5: 1.png --]
[-- Type: image/png, Size: 1625 bytes --]
[-- Attachment #6: 2.png --]
[-- Type: image/png, Size: 1314 bytes --]
[-- Attachment #7: 3.png --]
[-- Type: image/png, Size: 1934 bytes --]
[-- Attachment #8: 4.png --]
[-- Type: image/png, Size: 1788 bytes --]
[-- Attachment #9: 5.png --]
[-- Type: image/png, Size: 1458 bytes --]
next prev parent reply other threads:[~2024-10-28 15:20 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-11 16:18 bug#73752: 29.4; Ligatures are randomly rendered with extra spaces xuan
2024-10-12 8:02 ` Eli Zaretskii
2024-10-12 16:09 ` Yixuan Chen
2024-10-27 10:21 ` Eli Zaretskii
2024-10-27 16:19 ` Visuwesh
2024-10-27 17:19 ` Eli Zaretskii
2024-10-27 17:27 ` Eli Zaretskii
2024-10-27 17:39 ` Yixuan Chen
2024-10-27 17:43 ` Eli Zaretskii
2024-10-27 17:46 ` Yixuan Chen
2024-10-27 19:14 ` Eli Zaretskii
2024-10-27 19:36 ` Yixuan Chen
2024-10-27 19:44 ` Eli Zaretskii
2024-10-27 19:47 ` Yixuan Chen
2024-10-27 20:11 ` Eli Zaretskii
2024-10-27 19:41 ` Yixuan Chen
2024-10-27 20:07 ` Eli Zaretskii
2024-10-27 20:32 ` Yixuan Chen
2024-10-28 14:25 ` Eli Zaretskii
2024-10-28 14:44 ` Yixuan Chen
2024-10-28 14:47 ` Yixuan Chen
2024-10-28 15:05 ` Eli Zaretskii
2024-10-28 15:20 ` Yixuan Chen [this message]
2024-10-28 17:19 ` Eli Zaretskii
2024-10-28 17:26 ` Eli Zaretskii
2024-10-28 17:28 ` Yixuan Chen
2024-10-28 18:41 ` Eli Zaretskii
2024-10-28 4:26 ` Visuwesh
2024-10-28 14:59 ` Eli Zaretskii
2024-10-28 15:24 ` Yixuan Chen
2024-10-28 16:18 ` Visuwesh
2024-10-28 17:13 ` Eli Zaretskii
2024-10-29 10:59 ` Visuwesh
2024-10-29 13:04 ` Eli Zaretskii
2024-10-29 13:54 ` Visuwesh
2024-10-29 14:00 ` Visuwesh
2024-10-29 15:38 ` Eli Zaretskii
2024-10-29 16:46 ` Visuwesh
2024-10-29 17:45 ` Eli Zaretskii
2024-10-30 5:43 ` Visuwesh
2024-10-29 16:51 ` Eli Zaretskii
2024-10-27 17:29 ` Yixuan Chen
2024-10-29 23:14 ` Tim Ruffing
2024-10-30 15:12 ` Eli Zaretskii
2024-10-30 15:45 ` Eli Zaretskii
[not found] ` <mvmikt9zkcq.fsf@suse.de>
2024-10-30 15:47 ` Eli Zaretskii
2024-10-30 17:34 ` Tim Ruffing
2024-10-30 17:46 ` Eli Zaretskii
2024-10-30 18:00 ` Tim Ruffing
2024-10-30 18:57 ` Eli Zaretskii
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