☰

make4ht 通用 css

tag-icon • tag-icon tex4ht make4ht
make4ht 通用 css

是否有可能获得一个完整的 make4ht CSS 文件，该文件可以解释所有输出？我正在将 make4ht 创建的 HTML 输出保存到数据库中；为每个条目单独保存一个附带的 CSS 文件对我来说似乎是多余的。

答案1

这并不那么容易，原因有二：

  1. TeX4ht 使用了很多条件代码，因此您可能会根据所使用的包或命令行选项获得不同的 CSS 代码
  2. 一些元素，特别是字体、表格、彩色框等，会生成依赖于所用特性（例如表格中的颜色或规则）的 CSS 代码。

我有一个想法，如果您总是使用相同的命令行选项，那么这个想法是可行的。以下 Lua 脚本比较两个 CSS 文件，并将额外的 CSS 指令从辅助文件插入到主文件，但它会保留id第二个文件中特定属性的规则。

-- filename: updatecss.lua
local main_file = arg[1]
local secondary_file = arg[2]


local function help(err)
  print "Usage: texlua updatecss.lua main_file.css secondary_file.css"
  print "Extra CSS instructions from the secondary_file.css will be inserted to the main_file.css"
  print "In secondary_file.css, only rules that contain #character, will be preserved"
  if err then
    print("Error: " .. err)
  end
  os.exit()
end

local used = {}
local css  = {}
local ids  = {}

local function is_id(line)
  return line:match("^[^%{]*%#") 
end

local function is_comment(line)
  return line:match("^%s*%/%*")
end

local function is_empty_line(line)
  return line:match("^%s*$")
end

if not main_file or not secondary_file then
  help()
end

local main, msg = io.open(main_file, "r")
if not main then
  help(msg)
end

local second, msg = io.open(secondary_file, "r")
if not second then
  help(msg)
end


-- loop over the main file, and save CSS rules that are not comments or depending on the id attribute

for line in main:lines() do
  if not is_id(line) and not is_comment(line) then
    if not is_empty_line(line) then
      table.insert(css, line)
    end
    used[line] = true
  end
end

-- loop over the secondary file and save extra rules not used in the main css, and also rules for the id attribute

for line in second:lines() do
  if is_id(line) then
    table.insert(ids, line)
  elseif not is_comment(line) and not used[line] then
    used[line] = true
    table.insert( css, line )
  end
end

main:close()
second:close()

-- now write unique CSS without ids and comments to the main_file.css
local main = io.open(main_file, "w")
main:write(table.concat(css, "\n"))
main:close()

-- and save ids to the secondary file
local second = io.open(secondary_file, "w")
-- we need to import the main CSS file
-- you may need to list full URL here
second:write('@import "' .. main_file .. "\"\n")
second:write(table.concat(ids, ";\n"))
second:close()

print("Done!")

使用方法如下：

texlua updatecss.lua main.css current.css

这将覆盖两个 CSS 文件，保留main.css通用规则，并current.css针对当前 TeX 项目的特定元素添加额外的规则。

脚本处理后它们可能看起来像这样：

.cmbx-10{ font-weight: bold;}
.cmti-10{ font-style: italic;}
p{margin-top:0;margin-bottom:0}
p.indent{text-indent:0;}
p + p{margin-top:1em;}
p + div, p + pre {margin-top:1em;}
div + p, pre + p {margin-top:1em;}
a { overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; hyphens: auto; }
@media print {div.crosslinks {visibility:hidden;}}
table.tabular{border-collapse: collapse; border-spacing: 0;}
a img { border-top: 0; border-left: 0; border-right: 0; }
center { margin-top:1em; margin-bottom:1em; }
td center { margin-top:0em; margin-bottom:0em; }
.Canvas { position:relative; }
img.math{vertical-align:middle;}
div.par-math-display, div.math-display{text-align:center;}
.obeylines-h,.obeylines-v {white-space: nowrap; }
div.obeylines-v p { margin-top:0; margin-bottom:0; }
.overline{ text-decoration:overline; }
.overline img{ border-top: 1px solid black; }
td.displaylines {text-align:center; white-space:nowrap;}
.centerline {text-align:center;}
.rightline {text-align:right;}
.underline{ text-decoration:underline; }
.underline img{ border-bottom: 1px solid black; margin-bottom:1pt; }
div.proclaim { margin-top: 1em; margin-bottom: 1em; }
p.item {text-indent:-2em; margin-left:2em;}
p.itemitem {text-indent:-2em; margin-left:4em;}
span.item, span.itemitem {width:2em; margin-right:0.4em;}
td.eqalign3 { text-align:right; margin-left:10em;}
.eqalign td { white-space: nowrap; }
div.eqalign {text-align:center;}
td.eqalignno3, td.leqalignno3 { text-align:right; margin-left:10em;}
.leqalignno td, .eqalignno td { white-space: nowrap; }
.leqalignno td.noalign, .eqalignno td.noalign { width:5%; white-space: normal; }
table.leqalignno, table.eqalignno {width:100%;}
img.cdots{vertical-align:middle;}
div.pmatrix {text-align:center;}
table.pmatrix {width:100%;}
.cmtt-10{font-family: monospace,monospace;}
li p.indent { text-indent: 0em }
li p:first-child{ margin-top:0em; }
li p:last-child, li div:last-child { margin-bottom:0.5em; }
li p:first-child{ margin-bottom:0; }
li p~ul:last-child, li p~ol:last-child{ margin-bottom:0.5em; }
.enumerate1 {list-style-type:decimal;}
.enumerate2 {list-style-type:lower-alpha;}
.enumerate3 {list-style-type:lower-roman;}
.enumerate4 {list-style-type:upper-alpha;}
div.newtheorem { margin-bottom: 2em; margin-top: 2em;}
div.newtheorem .head{font-weight: bold;}
pre.verbatim {font-family: monospace,monospace; text-align:left; clear:both; }
.fbox {padding-left:3.0pt; padding-right:3.0pt; text-indent:0pt; border:solid black 0.4pt; }
div.fbox {display:table}
div.center div.fbox {text-align:center; clear:both; padding-left:3.0pt; padding-right:3.0pt; text-indent:0pt; border:solid black 0.4pt; }
div.minipage{width:100%;}
div.center, div.center div.center {text-align: center; margin-left:1em; margin-right:1em;}
div.center div {text-align: left;}
div.flushright, div.flushright div.flushright {text-align: right;}
div.flushright div {text-align: left;}
div.flushleft {text-align: left;}
.framebox-c, .framebox-l, .framebox-r { padding-left:3.0pt; padding-right:3.0pt; text-indent:0pt; border:solid black 0.4pt; }
.framebox-c {text-align:center;}
.framebox-l {text-align:left;}
.framebox-r {text-align:right;}
span.thank-mark{ vertical-align: super }
span.footnote-mark sup.textsuperscript, span.footnote-mark a sup.textsuperscript{ font-size:80%; }
div.tabular, div.center div.tabular {text-align: center; margin-top:0.5em; margin-bottom:0.5em; }
table.tabular td p{margin-top:0em;}
table.tabular {margin-left: auto; margin-right: auto;}
td p:first-child{ margin-top:0em; }
td p:last-child{ margin-bottom:0em; }
div.td00{ margin-left:0pt; margin-right:0pt; }
div.td01{ margin-left:0pt; margin-right:5pt; }
div.td10{ margin-left:5pt; margin-right:0pt; }
div.td11{ margin-left:5pt; margin-right:5pt; }
table[rules] {border-left:solid black 0.4pt; border-right:solid black 0.4pt; }
td.td00{ padding-left:0pt; padding-right:0pt; }
td.td01{ padding-left:0pt; padding-right:5pt; }
td.td10{ padding-left:5pt; padding-right:0pt; }
td.td11{ padding-left:5pt; padding-right:5pt; }
.hline hr, .cline hr{ height : 0px; margin:0px; }
.hline td, .cline td{ padding: 0; }
.hline hr, .cline hr{border:none;border-top:1px solid black;}
.hline {border-top: 1px solid black;}
.tabbing-right {text-align:right;}
div.float, div.figure {margin-left: auto; margin-right: auto;}
div.float img {text-align:center;}
div.figure img {text-align:center;}
.marginpar,.reversemarginpar {width:20%; float:right; text-align:left; margin-left:auto; margin-top:0.5em; font-size:85%; text-decoration:underline;}
.marginpar p,.reversemarginpar p{margin-top:0.4em; margin-bottom:0.4em;}
.reversemarginpar{float:left;}
table.equation {width:100%;}
.equation td{text-align:center; }
td.equation { margin-top:1em; margin-bottom:1em; } 
td.equation-label { width:5%; text-align:center; }
td.eqnarray4 { width:5%; white-space: normal; }
td.eqnarray2 { width:5%; }
table.eqnarray-star, table.eqnarray {width:100%;}
div.eqnarray{text-align:center;}
div.array {text-align:center;}
span.pmatrix img{vertical-align:middle;}
span.bar-css {text-decoration:overline;}
.partToc a, .partToc, .likepartToc a, .likepartToc {line-height: 200%; font-weight:bold; font-size:110%;}
.index-item, .index-subitem, .index-subsubitem {display:block}
div.caption {text-indent:-2em; margin-left:3em; margin-right:1em; text-align:left;}
div.caption span.id{font-weight: bold; white-space: nowrap; }
h1.partHead{text-align: center}
p.bibitem { text-indent: -2em; margin-left: 2em; margin-top:0.6em; margin-bottom:0.6em; }
p.bibitem-p { text-indent: 0em; margin-left: 2em; margin-top:0.6em; margin-bottom:0.6em; }
.paragraphHead, .likeparagraphHead { margin-top:2em; font-weight: bold;}
.subparagraphHead, .likesubparagraphHead { font-weight: bold;}
.verse{white-space:nowrap; margin-left:2em}
div.maketitle {text-align:center;}
h2.titleHead{text-align:center;}
div.maketitle{ margin-bottom: 2em; }
div.author, div.date {text-align:center;}
div.thanks{text-align:left; margin-left:10%; font-size:85%; font-style:italic; }
div.author{white-space: nowrap;}
div.abstract p {margin-left:5%; margin-right:5%;}
div.abstract {width:100%;}
.abstracttitle{text-align:center;margin-bottom:1em;}
figure.float, div.figure {margin-left: auto; margin-right: auto;}
figure.figure {text-align:center;}
figcaption.caption {text-indent:-2em; margin-left:3em; margin-right:1em; text-align:center;}
figcaption.caption span.id{font-weight: bold; white-space: nowrap; }
p + figcaption, img + figcaption{margin-top: 1em;}
.abstract{margin:1em;}

和current.css：

@import "main.css";
#TBL-1-1{border-right:1px solid black;}

相关内容