Terminal

xterm 中的顏色錯誤

  • September 11, 2020

我不太了解 XTerm(在這種情況下為 UXTerm)關於顏色的行為。我正在為 Alacritty 和 UXTerm 使用 Solarized Light 顏色主題。它們或多或少相同:

~/.alacritty.yml:

# Colors (Solarized Light)
colors:
 # Default colors
 primary:
   background: '0xfdf6e3'
   foreground: '0x586e75'

 # Normal colors
 normal:
   black:   '0x073642'
   red:     '0xdc322f'
   green:   '0x859900'
   yellow:  '0xb58900'
   blue:    '0x268bd2'
   magenta: '0xd33682'
   cyan:    '0x2aa198'
   white:   '0xeee8d5'

 # Bright colors
 bright:
   black:   '0x002b36'
   red:     '0xcb4b16'
   green:   '0x586e75'
   yellow:  '0x657b83'
   blue:    '0x839496'
   magenta: '0x6c71c4'
   cyan:    '0x93a1a1'
   white:   '0xfdf6e3'

~/.Xresources:

#define S_base03        #002b36
#define S_base02        #073642
#define S_base01        #586e75
#define S_base00        #657b83
#define S_base0         #839496
#define S_base1         #93a1a1
#define S_base2         #eee8d5
#define S_base3         #fdf6e3
#define S_yellow        #b58900
#define S_orange        #cb4b16
#define S_red           #dc322f
#define S_magenta       #d33682
#define S_violet        #6c71c4
#define S_blue          #268bd2
#define S_cyan          #2aa198
#define S_green         #859900

!fonts&stuff
UXTerm*faceSize: 11
uxterm*eightBitInput: false
UXTerm*faceName: Fira Mono Regular

!Background & foreground
UXTerm*background: S_base3
UXTerm*foreground: S_base00
UXTerm*fading: 40
UXTerm*fadeColor: S_base3
UXTerm*cursorColor: S_base01
UXTerm*pointerColorBackground: S_base1
UXTerm*pointerColorForeground: S_base01

!UXTerm*borderColor: #343434

!Turning off scrollbar
UXTerm*scrollBar:  off

!Starting up with a geometry
UXTerm*vt100*geometry:   160x50

!Colors
!-------------------------
!black
UXTerm*color0: S_base02
UXTerm*color8: S_base03

!red
UXTerm*color1: S_red
UXTerm*color9: S_orange

!green
UXTerm*color2: S_green
UXTerm*color10: S_base01

!yellow
UXTerm*color3: S_yellow
UXTerm*color11: S_base00

!blue
UXTerm*color4: S_blue
UXTerm*color12: S_base0

!magenta
UXTerm*color5: S_magenta
UXTerm*color13: S_violet

!cyan
UXTerm*color6: S_cyan
UXTerm*color14: S_base1

!white
UXTerm*color7: S_base2
UXTerm*color15: S_base3

Alacritty 會話:

trueneu@pop-os:~$ env | grep TERM
COLORTERM=truecolor
TERM=xterm-256color

UXTerm 會話:

trueneu@pop-os:~$ env | grep TERM
COLORTERM=truecolor
XTERM_VERSION=XTerm(353)
XTERM_SHELL=/bin/bash
XTERM_LOCALE=en_US.UTF-8
TERM=xterm-256color

但它們在顏色方面表現出完全不同的行為:

快活:

迅速的

使用者體驗術語:

迅速的

儘管在 emacs 中一切都很好:

快活:

emacs

使用者體驗術語:

emacs

兩者都通過了我發現的這個測試:

#!/usr/bin/env bash

awk 'BEGIN{
   s="/\\/\\/\\/\\/\\"; s=s s s s s s s s;
   for (colnum = 0; colnum<77; colnum++) {
       r = 255-(colnum*255/76);
       g = (colnum*510/76);
       b = (colnum*255/76);
       if (g>255) g = 510-g;
       printf "\033[48;2;%d;%d;%dm", r,g,b;
       printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
       printf "%s\033[0m", substr(s,colnum+1,1);
   }
   printf "\n";
}'

快活:

emacs

使用者體驗術語:

emacs

提示:

PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '

ls顏色相同。

UXTerm 的infocmp,如果有幫助的話:

   Reconstructed via infocmp from file: /lib/terminfo/x/xterm-256color
xterm-256color|xterm with 256 colors,
   am, bce, ccc, km, mc5i, mir, msgr, npc, xenl,
   colors#0x100, cols#80, it#8, lines#24, pairs#0x10000,
   acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
   bel=^G, blink=\E[5m, bold=\E[1m, cbt=\E[Z, civis=\E[?25l,
   clear=\E[H\E[2J, cnorm=\E[?12l\E[?25h, cr=\r,
   csr=\E[%i%p1%d;%p2%dr, cub=\E[%p1%dD, cub1=^H,
   cud=\E[%p1%dB, cud1=\n, cuf=\E[%p1%dC, cuf1=\E[C,
   cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
   cvvis=\E[?12;25h, dch=\E[%p1%dP, dch1=\E[P, dim=\E[2m,
   dl=\E[%p1%dM, dl1=\E[M, ech=\E[%p1%dX, ed=\E[J, el=\E[K,
   el1=\E[1K, flash=\E[?5h$<100/>\E[?5l, home=\E[H,
   hpa=\E[%i%p1%dG, ht=^I, hts=\EH, ich=\E[%p1%d@,
   il=\E[%p1%dL, il1=\E[L, ind=\n, indn=\E[%p1%dS,
   initc=\E]4;%p1%d;rgb\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\\,
   invis=\E[8m, is2=\E[!p\E[?3;4l\E[4l\E>, kDC=\E[3;2~,
   kEND=\E[1;2F, kHOM=\E[1;2H, kIC=\E[2;2~, kLFT=\E[1;2D,
   kNXT=\E[6;2~, kPRV=\E[5;2~, kRIT=\E[1;2C, kb2=\EOE, kbs=^?,
   kcbt=\E[Z, kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA,
   kdch1=\E[3~, kend=\EOF, kent=\EOM, kf1=\EOP, kf10=\E[21~,
   kf11=\E[23~, kf12=\E[24~, kf13=\E[1;2P, kf14=\E[1;2Q,
   kf15=\E[1;2R, kf16=\E[1;2S, kf17=\E[15;2~, kf18=\E[17;2~,
   kf19=\E[18;2~, kf2=\EOQ, kf20=\E[19;2~, kf21=\E[20;2~,
   kf22=\E[21;2~, kf23=\E[23;2~, kf24=\E[24;2~,
   kf25=\E[1;5P, kf26=\E[1;5Q, kf27=\E[1;5R, kf28=\E[1;5S,
   kf29=\E[15;5~, kf3=\EOR, kf30=\E[17;5~, kf31=\E[18;5~,
   kf32=\E[19;5~, kf33=\E[20;5~, kf34=\E[21;5~,
   kf35=\E[23;5~, kf36=\E[24;5~, kf37=\E[1;6P, kf38=\E[1;6Q,
   kf39=\E[1;6R, kf4=\EOS, kf40=\E[1;6S, kf41=\E[15;6~,
   kf42=\E[17;6~, kf43=\E[18;6~, kf44=\E[19;6~,
   kf45=\E[20;6~, kf46=\E[21;6~, kf47=\E[23;6~,
   kf48=\E[24;6~, kf49=\E[1;3P, kf5=\E[15~, kf50=\E[1;3Q,
   kf51=\E[1;3R, kf52=\E[1;3S, kf53=\E[15;3~, kf54=\E[17;3~,
   kf55=\E[18;3~, kf56=\E[19;3~, kf57=\E[20;3~,
   kf58=\E[21;3~, kf59=\E[23;3~, kf6=\E[17~, kf60=\E[24;3~,
   kf61=\E[1;4P, kf62=\E[1;4Q, kf63=\E[1;4R, kf7=\E[18~,
   kf8=\E[19~, kf9=\E[20~, khome=\EOH, kich1=\E[2~,
   kind=\E[1;2B, kmous=\E[M, knp=\E[6~, kpp=\E[5~,
   kri=\E[1;2A, mc0=\E[i, mc4=\E[4i, mc5=\E[5i, meml=\El,
   memu=\Em, oc=\E]104\007, op=\E[39;49m, rc=\E8, rev=\E[7m,
   ri=\EM, rin=\E[%p1%dT, ritm=\E[23m, rmacs=\E(B,
   rmam=\E[?7l, rmcup=\E[?1049l\E[23;0;0t, rmir=\E[4l,
   rmkx=\E[?1l\E>, rmm=\E[?1034l, rmso=\E[27m, rmul=\E[24m,
   rs1=\Ec\E]104\007, rs2=\E[!p\E[?3;4l\E[4l\E>, sc=\E7,
   setab=\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m,
   setaf=\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m,
   sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
   sgr0=\E(B\E[m, sitm=\E[3m, smacs=\E(0, smam=\E[?7h,
   smcup=\E[?1049h\E[22;0;0t, smir=\E[4h, smkx=\E[?1h\E=,
   smm=\E[?1034h, smso=\E[7m, smul=\E[4m, tbc=\E[3g,
   u6=\E[%i%d;%dR, u7=\E[6n, u8=\E[?%[;0123456789]c,
   u9=\E[c, vpa=\E[%i%p1%dd,

我在這裡缺少一些配置嗎?這就是 XTerm 的工作方式嗎?我真的不明白它是如何通過該測試的。

編輯:在 Thomas Dickey 的回答之後,我確實嘗試將 .Xresources 重新定義為沒有 C 預處理器#define。結果如下:

!fonts&stuff
UXTerm*faceSize: 11
uxterm*eightBitInput: false
UXTerm*faceName: Fira Mono Regular

!Background & foreground
UXTerm*background: #fdf6e3
UXTerm*foreground: #657b83
UXTerm*fading: 40
UXTerm*fadeColor: #fdf6e3
UXTerm*cursorColor: #586e75
UXTerm*pointerColorBackground: #93a1a1
UXTerm*pointerColorForeground: #586e75

!UXTerm*borderColor: #343434

!Turning off scrollbar
UXTerm*scrollBar:  off

!Starting up with a geometry
UXTerm*vt100*geometry:   160x50

!Colors
!-------------------------
!black
UXTerm*color0: #073642
UXTerm*color8: #002b36

!red
UXTerm*color1: #dc322f
UXTerm*color9: #cb4b16

!green
UXTerm*color2: #859900
UXTerm*color10: #586e75

!yellow
UXTerm*color3: #b58900
UXTerm*color11: #657b83

!blue
UXTerm*color4: #268bd2
UXTerm*color12: #839496

!magenta
UXTerm*color5: #d33682
UXTerm*color13: #6c71c4

!cyan
UXTerm*color6: #2aa198
UXTerm*color14: #93a1a1

!white
UXTerm*color7: #eee8d5
UXTerm*color15: #fdf6e3

載入設置而不-merge只是為了確定:

xrdb ~/.Xresources

並推出了 UXTerm:

沒有定義的 uxterm

EDIT2:忘記提及一個(可能相關的)細節:如果我擺脫了配色方案,UXTerm 開始顯示至少類似於Alacritty 的顏色:

uxterm 無配色方案

所以方向是對的。但在這種狀態下,它對我來說顯然無法使用。

Alacritty 忽略資源設置,xterm 使用它們。這些S_xxx名稱在 xterm 看到它們之前使用 C 預處理器進行後處理。

將這些內容複製.Xresources到文件中,並嘗試顯示設置有問題(某些值未定義):

> XAPPLRESDIR=/users/tom/app-defaults.orig uxterm
Warning: Color name "S_base3" is not defined
xterm: unable to allocate fg/bg colors
Warning: Color name "S_base1" is not defined
Warning: Color name "S_base00" is not defined

(幾個月前我花了一些時間研究調色板,例如solarized,發現大多數列出 X 資源的網頁都有這樣的錯誤)。

使用更正的調色板:預設情況下,如果有粗體屬性,xterm 會將前 8 種 ANSI 顏色映射為 8-15(當然,日曬調色板那裡沒有更亮的顏色)。您可以通過+pc(命令行選項)或相應的資源禁用它boldColors:false

引用自:https://unix.stackexchange.com/questions/608875