将 Firefox 书签 JSON 文件转换为 markdown
Convert Firefox bookmarks JSON file to markdown
背景
我想在我的 Hugo 网站上显示我的部分书签。 Firefox 的书签可以保存为 JSON 格式，这是来源。结果应该以某种方式以嵌套列表、树视图或手风琴的格式表示嵌套结构。网站内容源文件采用markdown格式编写。我想从 JSON 输入生成降价文件。
作为我 searched 可能的解决方案：
- treeview 或 accordion：需要 HTML、CSS 和 Javascript。我不能用
<details> 标签嵌套手风琴。另外，目前看来有点矫枉过正。
- 无序列表：可以用简单的降价来完成。
我选择从 JSON 生成无序列表。我想用 R.
做这个
Input/output
输入样本：https://gist.github.com/hermanp/c01365b8f4931ea7ff9d1aee1cbbc391
首选输出（缩进两个空格）：
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript](https://www.javascript.com/)
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
额外的首选输出：在 link 之前显示图标，如下所示（欢迎其他建议，例如从网站服务器加载它们而不是 linking）：
- ![https://cdn.sstatic.net/Sites/Whosebug/Img/apple-touch-icon.png?v=c78bd457575a][Stack Overflow](https://whosebug.com/)
尝试
generate_md <- function (file) {
# Encoding problem with tidyjson::read_json
bmarks_json_lite <- jsonlite::fromJSON(
txt = paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json"))
# This is the start point, a data frame
level1 <- bmarks_json_lite$children$children[[2]]
# Get the name of the variable to modify it.
# Just felt that some abstraction needed.
varname <- deparse(substitute(level1))
varlevel <- as.integer(substr(varname, nchar(varname), nchar(varname)))
# Get through the data frame by its rows.
for (i in seq_len(nrow(get(varname)))) {
# If the type of the element in the row is "text/x-moz-place",
# then get its title and create a markdown list element from it.
if (get(varname)["type"][i] == "text/x-moz-place"){
# The two space indentation shall be multiplied as many times
# as deeply nested in the lists (minus one).
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
# Otherwise do this and also get inside the next level.
} else if (get(varname)["type"][i] == "text/x-moz-place-container") {
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
# I know this is not good, just want to express my thought.
# Create the next, deeper level's variable, whoose name shall
# represent the depth in the nest.
# Otherwise how can I multiply the indentation for the markdown
# list elements? It depends on the name of this variable.
varname <- paste0(regmatches(varname, regexpr("[[:alpha:]]+", varname)),
varlevel + 1L)
varlevel <- varlevel + 1L
assign(varname, get(varname)["children"][[i]])
# The same goes on as seen at the higher level.
for (j in seq_len(nrow(get(varname)))){
if (get(varname)["type"][i] == "text/x-moz-place"){
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
} else if (get(varname)["type"][i] == "text/x-moz-place-container") {
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
varname <- paste0(regmatches(varname, regexpr("[[:alpha:]]+", varname)),
varlevel + 1L)
varlevel <- varlevel + 1L
assign(varname, get(varname)["children"][[i]])
for (k in seq_len(nrow(get(varname)))){
# I don't know where this goes...
# Also I need to paste somewhere the md_title strings to get the
# final markdown output...
}
}
}
}
}
}
问题
如何从这个 JSON 文件中递归地抓取并粘贴字符串？我试图搜索递归技巧，但这是一个很难的话题。欢迎任何建议、包、功能，link！
在我观看了一些关于递归的视频并看到了一些代码示例之后，我尝试手动逐步执行代码并以某种方式设法使用递归。此解决方案与书签的嵌套性无关，因此是适用于所有人的通用解决方案。
注意：所有书签都在 Firefox 的书签工具栏中。这在 generate_md 函数中突出显示。你可以在那里解决它。如果我以后改进答案，我会让它更笼统。
library(jsonlite)
# This function recursively converts the bookmark titles to unordered
# list items.
recursive_func <- function (level) {
md_result <- character()
# Iterate through the current data frame, which may have a children
# column nested with other data frames.
for (i in seq_len(nrow(level))) {
# If this element is a bookmark and not a folder, then grab
# the title and construct a list item from it.
if (level[i, "type"] == "text/x-moz-place"){
md_title <- level[i, "title"]
md_uri <- level[i, "uri"]
md_iconuri <- level[i, "iconuri"]
# Condition: the URLs all have schema (http or https) part.
# If not, filname will be a zero length character vector.
host_url <- regmatches(x = md_uri,
m = regexpr(pattern = "(?<=://)[[:alnum:].-]+",
text = md_uri,
perl = T))
md_link <- paste0("[", md_title, "]", "(", md_uri, ")")
md_listitem <- paste0("- ", md_link, "\n")
# If this element is a folder, then get into it, call this
# function over it. Insert two space (for indentation) in
# the generated sting before every list item. Paste this
# list of items to the folder list item.
} else if (level[i, "type"] == "text/x-moz-place-container") {
md_title <- level[i, "title"]
md_listitem <- paste0("- ", md_title, "\n")
md_recurs <- recursive_func(level = level[i, "children"][[1]])
md_recurs <- gsub("(?<!(\w ))-(?= )", " -", md_recurs, perl = T)
md_listitem <- paste0(md_listitem, md_recurs)
}
# Collect and paste the list items of the current data frame.
md_result <- paste0(md_result, md_listitem)
}
# Return the (sub)list of the data frame.
return(md_result)
}
generate_md <- function (jsonfile) {
# Encoding problem with tidyjson::read_json
bmarks_json_lite <- fromJSON(txt = jsonfile)
# This is the start point, a data frame. It represents the
# elements inside the Bookmarks Toolbar in Firefox.
level1 <- bmarks_json_lite$children$children[[2]]
# Do not know how to make it prettier, but it works.
markdown_result <- recursive_func(level = level1)
return(markdown_result)
}
您可以 运行 generate_md 函数与示例。
generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json"))
# Output
[1] "- Info\n - Python\n - [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)\n - [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)\n - [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)\n - [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)\n - Frontend\n - [CodePen](https://codepen.io/)\n - [JavaScript](https://www.javascript.com/)\n - [CSS-Tricks](https://css-tricks.com/)\n - [Butterick’s Practical Typography](https://practicaltypography.com/)\n - [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)\n - [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)\n - [Client-Side Web Development](https://info340.github.io/)\n - [Stack Overflow](https://whosebug.com/)\n - [HUP](https://hup.hu/)\n - [Hope in Source](https://hopeinsource.com/)\n"
您可以 cat 它并使用 writeLines 将其写入文件。但是请注意！在 Windows 环境中，您可能需要转动 useBytes = TRUE 才能在文件中获取正确的字符。参考：UTF-8 file output in R
cat(generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json")))
# Output
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript](https://www.javascript.com/)
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
正则表达式部分有问题。如果书签的标题中有 some - title (space, hyphen, space) 字符，这些连字符也将作为列表项“缩进”。
# Input JSON
https://gist.github.com/hermanp/381eaf9f2bf5f2b9cdf22f5295e73eb5
cat(generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"381eaf9f2bf5f2b9cdf22f5295e73eb5/raw/",
"76b74b2c3b5e34c2410e99a3f1b6ef06977b2ec7/",
"bookmarks-example-hyphen.json")))
# Output (two space indentation) markdown:
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript - Wikipedia](https://en.wikipedia.org/wiki/JavaScript) # correct
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
我发布了关于这个问题的 another question。经过一些提示和尝试，我回答了我自己的问题。
我知道您在 R 中寻求解决方案。
作为建议，这里有一个使用 jq 的解决方案，因为它非常适合 json 转换。
#!/bin/bash
BOOKMARKS='FirefoxBookmarks.json'
jq -r '
def bookmark($iconuri; $title; $uri):
if $iconuri != null then "![\($iconuri)]" else "" end +
"[\($title)](\($uri))";
def bookmarks:
(objects | to_entries[]
| if .value | type == "array" then (.value | bookmarks)
else .value end ) //
(arrays[] | [bookmarks] | " - \(.[0])", " \(.[1:][])" );
(.. | .children? | arrays)
|= map(if .uri != null then {bookmark: bookmark(.iconuri; .title; .uri)}
else {title} end +
{children})
| del(..| select(length == 0)) # remove empty children and empty titles
| del(..| select(length == 0)) # remove objects that got empty because of previous deletion
| del(..| objects | select(has("title") and (.children | length == 0))) # remove objects with title but no children
| .children # remove root level
| bookmarks
' < "$BOOKMARKS"
输出：
- Könyvjelzők eszköztár
- Info
- Python
- ![fake-favicon-uri:https://www.freecodecamp.org/news/the-python-guide-for-beginners/][The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- ![https://github.githubassets.com/favicons/favicon.svg][Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- ![https://static.codepen.io/assets/favicon/favicon-touch-de50acbf5d634ec6791894eba4ba9cf490f709b3d742597c6fc4b734e6492a5a.png][CodePen](https://codepen.io/)
- ![https://www.javascript.com/etc/clientlibs/pluralsight/main/images/favicons/android-chrome-192x192.png][JavaScript](https://www.javascript.com/)
- ![https://css-tricks.com/apple-touch-icon.png][CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- ![https://www.smashingmagazine.com/images/favicon/app-icon-512x512.png][Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- ![https://info340.github.io/img/busy-spider-icon.png][Client-Side Web Development](https://info340.github.io/)
- ![https://cdn.sstatic.net/Sites/Whosebug/Img/apple-touch-icon.png?v=c78bd457575a][Stack Overflow](https://whosebug.com/)
- ![https://hup.hu/profiles/hupper/themes/hup_theme/favicon.ico][HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
背景
我想在我的 Hugo 网站上显示我的部分书签。 Firefox 的书签可以保存为 JSON 格式，这是来源。结果应该以某种方式以嵌套列表、树视图或手风琴的格式表示嵌套结构。网站内容源文件采用markdown格式编写。我想从 JSON 输入生成降价文件。
作为我 searched 可能的解决方案：
- treeview 或 accordion：需要 HTML、CSS 和 Javascript。我不能用
<details>标签嵌套手风琴。另外，目前看来有点矫枉过正。 - 无序列表：可以用简单的降价来完成。
我选择从 JSON 生成无序列表。我想用 R.
做这个Input/output
输入样本：https://gist.github.com/hermanp/c01365b8f4931ea7ff9d1aee1cbbc391
首选输出（缩进两个空格）：
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript](https://www.javascript.com/)
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
额外的首选输出：在 link 之前显示图标，如下所示（欢迎其他建议，例如从网站服务器加载它们而不是 linking）：
- ![https://cdn.sstatic.net/Sites/Whosebug/Img/apple-touch-icon.png?v=c78bd457575a][Stack Overflow](https://whosebug.com/)
尝试
generate_md <- function (file) {
# Encoding problem with tidyjson::read_json
bmarks_json_lite <- jsonlite::fromJSON(
txt = paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json"))
# This is the start point, a data frame
level1 <- bmarks_json_lite$children$children[[2]]
# Get the name of the variable to modify it.
# Just felt that some abstraction needed.
varname <- deparse(substitute(level1))
varlevel <- as.integer(substr(varname, nchar(varname), nchar(varname)))
# Get through the data frame by its rows.
for (i in seq_len(nrow(get(varname)))) {
# If the type of the element in the row is "text/x-moz-place",
# then get its title and create a markdown list element from it.
if (get(varname)["type"][i] == "text/x-moz-place"){
# The two space indentation shall be multiplied as many times
# as deeply nested in the lists (minus one).
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
# Otherwise do this and also get inside the next level.
} else if (get(varname)["type"][i] == "text/x-moz-place-container") {
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
# I know this is not good, just want to express my thought.
# Create the next, deeper level's variable, whoose name shall
# represent the depth in the nest.
# Otherwise how can I multiply the indentation for the markdown
# list elements? It depends on the name of this variable.
varname <- paste0(regmatches(varname, regexpr("[[:alpha:]]+", varname)),
varlevel + 1L)
varlevel <- varlevel + 1L
assign(varname, get(varname)["children"][[i]])
# The same goes on as seen at the higher level.
for (j in seq_len(nrow(get(varname)))){
if (get(varname)["type"][i] == "text/x-moz-place"){
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
} else if (get(varname)["type"][i] == "text/x-moz-place-container") {
md_title <- paste0(strrep(" ", varlevel - 1),
"- ",
get(varname)["title"][i],
"\n")
varname <- paste0(regmatches(varname, regexpr("[[:alpha:]]+", varname)),
varlevel + 1L)
varlevel <- varlevel + 1L
assign(varname, get(varname)["children"][[i]])
for (k in seq_len(nrow(get(varname)))){
# I don't know where this goes...
# Also I need to paste somewhere the md_title strings to get the
# final markdown output...
}
}
}
}
}
}
问题
如何从这个 JSON 文件中递归地抓取并粘贴字符串？我试图搜索递归技巧，但这是一个很难的话题。欢迎任何建议、包、功能，link！
在我观看了一些关于递归的视频并看到了一些代码示例之后，我尝试手动逐步执行代码并以某种方式设法使用递归。此解决方案与书签的嵌套性无关，因此是适用于所有人的通用解决方案。
注意：所有书签都在 Firefox 的书签工具栏中。这在 generate_md 函数中突出显示。你可以在那里解决它。如果我以后改进答案，我会让它更笼统。
library(jsonlite)
# This function recursively converts the bookmark titles to unordered
# list items.
recursive_func <- function (level) {
md_result <- character()
# Iterate through the current data frame, which may have a children
# column nested with other data frames.
for (i in seq_len(nrow(level))) {
# If this element is a bookmark and not a folder, then grab
# the title and construct a list item from it.
if (level[i, "type"] == "text/x-moz-place"){
md_title <- level[i, "title"]
md_uri <- level[i, "uri"]
md_iconuri <- level[i, "iconuri"]
# Condition: the URLs all have schema (http or https) part.
# If not, filname will be a zero length character vector.
host_url <- regmatches(x = md_uri,
m = regexpr(pattern = "(?<=://)[[:alnum:].-]+",
text = md_uri,
perl = T))
md_link <- paste0("[", md_title, "]", "(", md_uri, ")")
md_listitem <- paste0("- ", md_link, "\n")
# If this element is a folder, then get into it, call this
# function over it. Insert two space (for indentation) in
# the generated sting before every list item. Paste this
# list of items to the folder list item.
} else if (level[i, "type"] == "text/x-moz-place-container") {
md_title <- level[i, "title"]
md_listitem <- paste0("- ", md_title, "\n")
md_recurs <- recursive_func(level = level[i, "children"][[1]])
md_recurs <- gsub("(?<!(\w ))-(?= )", " -", md_recurs, perl = T)
md_listitem <- paste0(md_listitem, md_recurs)
}
# Collect and paste the list items of the current data frame.
md_result <- paste0(md_result, md_listitem)
}
# Return the (sub)list of the data frame.
return(md_result)
}
generate_md <- function (jsonfile) {
# Encoding problem with tidyjson::read_json
bmarks_json_lite <- fromJSON(txt = jsonfile)
# This is the start point, a data frame. It represents the
# elements inside the Bookmarks Toolbar in Firefox.
level1 <- bmarks_json_lite$children$children[[2]]
# Do not know how to make it prettier, but it works.
markdown_result <- recursive_func(level = level1)
return(markdown_result)
}
您可以 运行 generate_md 函数与示例。
generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json"))
# Output
[1] "- Info\n - Python\n - [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)\n - [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)\n - [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)\n - [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)\n - Frontend\n - [CodePen](https://codepen.io/)\n - [JavaScript](https://www.javascript.com/)\n - [CSS-Tricks](https://css-tricks.com/)\n - [Butterick’s Practical Typography](https://practicaltypography.com/)\n - [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)\n - [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)\n - [Client-Side Web Development](https://info340.github.io/)\n - [Stack Overflow](https://whosebug.com/)\n - [HUP](https://hup.hu/)\n - [Hope in Source](https://hopeinsource.com/)\n"
您可以 cat 它并使用 writeLines 将其写入文件。但是请注意！在 Windows 环境中，您可能需要转动 useBytes = TRUE 才能在文件中获取正确的字符。参考：UTF-8 file output in R
cat(generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"c01365b8f4931ea7ff9d1aee1cbbc391/raw/",
"33c21c88dad35145e2792b6258ede9c882c580ec/",
"bookmarks-example.json")))
# Output
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript](https://www.javascript.com/)
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
正则表达式部分有问题。如果书签的标题中有 some - title (space, hyphen, space) 字符，这些连字符也将作为列表项“缩进”。
# Input JSON
https://gist.github.com/hermanp/381eaf9f2bf5f2b9cdf22f5295e73eb5
cat(generate_md(paste0("https://gist.githubusercontent.com/hermanp/",
"381eaf9f2bf5f2b9cdf22f5295e73eb5/raw/",
"76b74b2c3b5e34c2410e99a3f1b6ef06977b2ec7/",
"bookmarks-example-hyphen.json")))
# Output (two space indentation) markdown:
- Info
- Python
- [The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- [Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- [CodePen](https://codepen.io/)
- [JavaScript - Wikipedia](https://en.wikipedia.org/wiki/JavaScript) # correct
- [CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- [Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- [Client-Side Web Development](https://info340.github.io/)
- [Stack Overflow](https://whosebug.com/)
- [HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)
我发布了关于这个问题的 another question。经过一些提示和尝试，我回答了我自己的问题。
我知道您在 R 中寻求解决方案。
作为建议，这里有一个使用 jq 的解决方案，因为它非常适合 json 转换。
#!/bin/bash
BOOKMARKS='FirefoxBookmarks.json'
jq -r '
def bookmark($iconuri; $title; $uri):
if $iconuri != null then "![\($iconuri)]" else "" end +
"[\($title)](\($uri))";
def bookmarks:
(objects | to_entries[]
| if .value | type == "array" then (.value | bookmarks)
else .value end ) //
(arrays[] | [bookmarks] | " - \(.[0])", " \(.[1:][])" );
(.. | .children? | arrays)
|= map(if .uri != null then {bookmark: bookmark(.iconuri; .title; .uri)}
else {title} end +
{children})
| del(..| select(length == 0)) # remove empty children and empty titles
| del(..| select(length == 0)) # remove objects that got empty because of previous deletion
| del(..| objects | select(has("title") and (.children | length == 0))) # remove objects with title but no children
| .children # remove root level
| bookmarks
' < "$BOOKMARKS"
输出：
- Könyvjelzők eszköztár
- Info
- Python
- ![fake-favicon-uri:https://www.freecodecamp.org/news/the-python-guide-for-beginners/][The Ultimate Python Beginner's Handbook](https://www.freecodecamp.org/news/the-python-guide-for-beginners/)
- [Python Like You Mean It](https://www.pythonlikeyoumeanit.com/index.html)
- [Automate the Boring Stuff with Python](https://automatetheboringstuff.com/)
- ![https://github.githubassets.com/favicons/favicon.svg][Data science Python notebooks](https://github.com/donnemartin/data-science-ipython-notebooks)
- Frontend
- ![https://static.codepen.io/assets/favicon/favicon-touch-de50acbf5d634ec6791894eba4ba9cf490f709b3d742597c6fc4b734e6492a5a.png][CodePen](https://codepen.io/)
- ![https://www.javascript.com/etc/clientlibs/pluralsight/main/images/favicons/android-chrome-192x192.png][JavaScript](https://www.javascript.com/)
- ![https://css-tricks.com/apple-touch-icon.png][CSS-Tricks](https://css-tricks.com/)
- [Butterick’s Practical Typography](https://practicaltypography.com/)
- [Front-end Developer Handbook 2019](https://frontendmasters.com/books/front-end-handbook/2019/)
- ![https://www.smashingmagazine.com/images/favicon/app-icon-512x512.png][Using Ethics In Web Design](https://www.smashingmagazine.com/2018/03/using-ethics-in-web-design/)
- ![https://info340.github.io/img/busy-spider-icon.png][Client-Side Web Development](https://info340.github.io/)
- ![https://cdn.sstatic.net/Sites/Whosebug/Img/apple-touch-icon.png?v=c78bd457575a][Stack Overflow](https://whosebug.com/)
- ![https://hup.hu/profiles/hupper/themes/hup_theme/favicon.ico][HUP](https://hup.hu/)
- [Hope in Source](https://hopeinsource.com/)