在 R 中包含 ASCII 艺术

Question

我正在写一个小程序，想知道是否有办法在 R 中包含 ASCII 艺术。我正在寻找等效的三个引号（""" 或 '''）在 python.

我尝试使用 cat 或 print 但没有成功。

Answer 1

试试 cat 函数，像这样的东西应该可以工作：

cat(" \"\"\" ")

Answer 2

不幸的是，R 只能使用单引号或双引号表示文字字符串，这使得表示 ascii 艺术很尴尬；但是，您可以执行以下操作来获取您的艺术作品的文本表示，可以使用 R 的 cat 函数输出。

1) 首先把你的作品放在一个文本文件中：

# ascii_art.txt is our text file with the ascii art
# For test purposes we use the output of say("Hello") from cowsay package 
# and put that in ascii_art.txt
library(cowsay)
writeLines(capture.output(say("Hello"), type = "message"), con = "ascii_art.txt")

2)然后读入文件，使用dput:

art <- readLines("ascii_art.txt")
dput(art)

给出了这个输出：

c("", " -------------- ", "Hello ", " --------------", "    \", 
"      \", "        \", "            |\___/|", "          ==) ^Y^ (==", 
"            \  ^  /", "             )=*=(", "            /     \", 
"            |     |", "           /| | | |\", "           \| | |_|/\", 
"      jgs  //_// ___/", "               \_)", "  ")

3) 最后在你的代码中写：

art <- # copy the output of `dput` here

因此您的代码将包含以下内容：

art <-
c("", " -------------- ", "Hello ", " --------------", "    \", 
"      \", "        \", "            |\___/|", "          ==) ^Y^ (==", 
"            \  ^  /", "             )=*=(", "            /     \", 
"            |     |", "           /| | | |\", "           \| | |_|/\", 
"      jgs  //_// ___/", "               \_)", "  ")

4) 现在如果我们简单地 cat 它显示的 art 变量：

> cat(art, sep = "\n")

 -------------- 
Hello 
 --------------
    \
      \
        \
            |\___/|
          ==) ^Y^ (==
            \  ^  /
             )=*=(
            /     \
            |     |
           /| | | |\
           \| | |_|/\
      jgs  //_// ___/
               \_)

已添加

这是几年后的补充。在 R 4.0 中，有一种新的语法使这更容易。参见 ?Quotes

 Raw character constants are also available using a syntax similar
 to the one used in C++: ‘r"(...)"’ with ‘...’ any character
 sequence, except that it must not contain the closing sequence
 ‘)"’. The delimiter pairs ‘[]’ and ‘{}’ can also be used, and ‘R’
 can be used in place of ‘r’. For additional flexibility, a number
 of dashes can be placed between the opening quote and the opening
 delimiter, as long as the same number of dashes appear between the
 closing delimiter and the closing quote.

例如：

hello <- r"{

 -------------- 
 Hello 
 --------------
    \
      \
        \
            |\___/|
          ==) ^Y^ (==
            \  ^  /
             )=*=(
            /     \
            |     |
           /| | | |\
           \| | |_|/\
      jgs  //_// ___/
               \_)
  
}"
cat(hello)

给予：

 -------------- 
 Hello 
 --------------
    \
      \
        \
            |\___/|
          ==) ^Y^ (==
            \  ^  /
             )=*=(
            /     \
            |     |
           /| | | |\
           \| | |_|/\
      jgs  //_// ___/
               \_)

Answer 3

替代方法：使用 API

URL - artii

步数：

获取数据ascii_request <- httr::GET("http://artii.herokuapp.com/make?text=this_is_your_text&font=ascii___")
检索响应 - ascii_response <- httr::content(ascii_request,as = "text", encoding = "UTF-8")
解决问题 - cat(ascii_response)

如果没有连接到网络，您可以设置自己的服务器。 Read more here

感谢 @johnnyaboh 设置这项令人惊叹的服务

在 R 中包含 ASCII 艺术

Including ASCII art in R

r

ascii-art

已添加