rvest是否可以保留内嵌html标签，例如< br>使用html_table? [英] Can rvest keep inline html tags such as <br> using html_table?

问题描述

我正在尝试在R中刮擦以html格式给出的表. Rvest在将所有文本从表格中取出时非常有用，但是我想保留以HTML形式出现的内联样式.

I am trying to scrape a table in R that I have been given in html form. Rvest was super useful in getting all of the text out of the table, but I would like to keep the inline styling that occurs in its HTML form.

例如，表中的文本可能是

For example, text in the table might be

"This is a sentence <BR> this is another sentence"

我想保留BR

我尝试阅读整个表格:

my_table <- my_table_html %>% 
html_nodes("table") %>% 
html_table(fill=TRUE) 

我也尝试过选择表格中的特定列:

I've also tried selecting specific columns in the table:

my_column <- my_table_html %>% 
html_nodes(".Tabletitle:nth-child(2)") %>%
html_text()

任何想法都将不胜感激

推荐答案

library(rvest)

pg <- read_html("This is a sentence <BR> this is another sentence")

xml_find_all(pg, ".//br") %>% xml_add_sibling("p", "\n")

xml_find_all(pg, ".//br") %>% xml_remove()

html_text(pg)
## [1] "This is a sentence \n this is another sentence"

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