Styjun

Help evaluating integral (anything simple that I am missing?)

Is it okay for a ticket seller to grab a tip in the USA?

Why are Gatwick's runways too close together?

What are the conventions for transcribing Semitic languages into Greek?

Ex-contractor published company source code and secrets online

Three legged NOT gate? What is this symbol?

Is it incorrect to write "I rate this book a 3 out of 4 stars?"

Can you castle with a "ghost" rook?

Does this Foo machine halt?

Trying to write a shell script that keeps testing a server remotely, but it keeps falling in else statement when I logout

What does Apple mean by "This may decrease battery life"?

Wherein the Shatapatha Brahmana it was mentioned about 8.64 lakh alphabets in Vedas?

How can I iterate this process?

Is Calculus necessary for computer science student?

In a topological space if there exists a loop that cannot be contracted to a point does there exist a simple loop that cannot be contracted also?

Simple Stop watch which i want to extend

First amendment and employment: Can a police department terminate an officer for speech?

I accidentally overwrote a Linux binary file

How to create all combinations from a nested list while preserving the structure using R?

Dropdowns & Chevrons for Right to Left languages

Blocking people from taking pictures of me with smartphone

What skills in 5e give trap knowledge (i.e. the equivalent of Dungeoneering in 4e)?

Plausibility of Ice Eaters in the Arctic

Was the 2019 Lion King film made through motion capture?

How to get the raw numeric HTML representation of special characters?

What special characters must be escaped in regular expressions?Detect encoding and make everything UTF-8Form character encoding problems with special charactersUTF-8 in Windows 7 CMDHow to correctly insert utf-8 characters into a MySQL table using jpaHow change the default UTF-8 encoding to LATIN1All special characters are question marks in PHP/HTMLusing special characters in jquery html not showing correctlyChanging default encoding of vim to utf-8 not workingReplace special characters in a string (like "{ by { ) in R

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

When I type "xfc" into R it leads to [1] "ü". I don't want that, I want this to lead to [1] "xfc". I also do not really understand why Encoding("xfc") is "latin1" although I changed the settings in Code->Saving to UTF-8. I want to write a function that replaces some special characters like "ü" by "xfc" but I can't achieve this:

> stringr::str_replace_all("Müller", "ü", "xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Mxfcller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\\xfc")
[1] "M\xfcller"

What I really want is [1] "Mxfcller"

(How) can I achieve this?

r regex encoding special-characters

share|improve this question

edited Mar 27 at 9:18

TobiSonne

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  check out ?Quotes, it seems like R interprets "xnn" as character with the hexcode nn. I do not know if there is a workaround for this behaviour
  
  – brettljausn
  Mar 27 at 8:48
  

  
  
  
  

add a comment | 

3

When I type "xfc" into R it leads to [1] "ü". I don't want that, I want this to lead to [1] "xfc". I also do not really understand why Encoding("xfc") is "latin1" although I changed the settings in Code->Saving to UTF-8. I want to write a function that replaces some special characters like "ü" by "xfc" but I can't achieve this:

> stringr::str_replace_all("Müller", "ü", "xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Mxfcller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\\xfc")
[1] "M\xfcller"

What I really want is [1] "Mxfcller"

(How) can I achieve this?

r regex encoding special-characters

share|improve this question

edited Mar 27 at 9:18

TobiSonne

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  check out ?Quotes, it seems like R interprets "xnn" as character with the hexcode nn. I do not know if there is a workaround for this behaviour
  
  – brettljausn
  Mar 27 at 8:48
  

  
  
  
  

add a comment | 

When I type "xfc" into R it leads to [1] "ü". I don't want that, I want this to lead to [1] "xfc". I also do not really understand why Encoding("xfc") is "latin1" although I changed the settings in Code->Saving to UTF-8. I want to write a function that replaces some special characters like "ü" by "xfc" but I can't achieve this:

> stringr::str_replace_all("Müller", "ü", "xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Mxfcller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\\xfc")
[1] "M\xfcller"

What I really want is [1] "Mxfcller"

(How) can I achieve this?

r regex encoding special-characters

share|improve this question

edited Mar 27 at 9:18

TobiSonne

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

> stringr::str_replace_all("Müller", "ü", "xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Mxfcller"
> stringr::str_replace_all("Müller", "ü", "\xfc")
[1] "Müller"
> stringr::str_replace_all("Müller", "ü", "\\xfc")
[1] "M\xfcller"

share|improve this question

edited Mar 27 at 9:18

TobiSonne

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

share|improve this question

edited Mar 27 at 9:18

TobiSonne

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

asked Mar 27 at 8:26

TobiSonneTobiSonne

10799 bronze badges

1 Answer
1

active

oldest

votes

0

The last line gives the result you want. The backslash is escaped when the string is printed. To see that, let's save the string to file and then see the content of the file.

s <- stringr::str_replace_all("Müller", "ü", "\\xfc")

writeLines(s, "test.txt")

cat(readLines("test.txt"))
#> Mxfcller

^{Created on 2019-03-27 by the reprex package (v0.2.1)}

Also see this GitHub issue: https://github.com/STAT545-UBC/Discussion/issues/394

share|improve this answer

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  x <- readLines("test.txt"). Now x is still "M\xfcller". I want to pass x to another function and x has to be "Mxfcller"
  
  – TobiSonne
  Mar 27 at 9:15
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  R treat strings a little bit differently. If you try x = "Mxfcller", you get "Müller".
  
  – dipetkov
  Mar 27 at 9:26
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also, you can see in the file that the string is Mxfcller but R shows it as M\xfcller.
  
  – dipetkov
  Mar 27 at 9:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  s <- "ab" and print(s) leads to "ab" und not "a\b" so there must be a difference? Or am I wrong?
  
  – TobiSonne
  Mar 27 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  R doesn't interpret "b" as a special character. Try "ax" and you get an error about "hex digits" which is what "xfc" is.
  
  – dipetkov
  Mar 27 at 11:52
  

  
  
  
  

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55372670%2fhow-to-get-the-raw-numeric-html-representation-of-special-characters%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

0

The last line gives the result you want. The backslash is escaped when the string is printed. To see that, let's save the string to file and then see the content of the file.

s <- stringr::str_replace_all("Müller", "ü", "\\xfc")

writeLines(s, "test.txt")

cat(readLines("test.txt"))
#> Mxfcller

^{Created on 2019-03-27 by the reprex package (v0.2.1)}

Also see this GitHub issue: https://github.com/STAT545-UBC/Discussion/issues/394

share|improve this answer

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  x <- readLines("test.txt"). Now x is still "M\xfcller". I want to pass x to another function and x has to be "Mxfcller"
  
  – TobiSonne
  Mar 27 at 9:15
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  R treat strings a little bit differently. If you try x = "Mxfcller", you get "Müller".
  
  – dipetkov
  Mar 27 at 9:26
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also, you can see in the file that the string is Mxfcller but R shows it as M\xfcller.
  
  – dipetkov
  Mar 27 at 9:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  s <- "ab" and print(s) leads to "ab" und not "a\b" so there must be a difference? Or am I wrong?
  
  – TobiSonne
  Mar 27 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  R doesn't interpret "b" as a special character. Try "ax" and you get an error about "hex digits" which is what "xfc" is.
  
  – dipetkov
  Mar 27 at 11:52
  

  
  
  
  

add a comment | 

0

The last line gives the result you want. The backslash is escaped when the string is printed. To see that, let's save the string to file and then see the content of the file.

s <- stringr::str_replace_all("Müller", "ü", "\\xfc")

writeLines(s, "test.txt")

cat(readLines("test.txt"))
#> Mxfcller

^{Created on 2019-03-27 by the reprex package (v0.2.1)}

Also see this GitHub issue: https://github.com/STAT545-UBC/Discussion/issues/394

share|improve this answer

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  x <- readLines("test.txt"). Now x is still "M\xfcller". I want to pass x to another function and x has to be "Mxfcller"
  
  – TobiSonne
  Mar 27 at 9:15
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  R treat strings a little bit differently. If you try x = "Mxfcller", you get "Müller".
  
  – dipetkov
  Mar 27 at 9:26
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also, you can see in the file that the string is Mxfcller but R shows it as M\xfcller.
  
  – dipetkov
  Mar 27 at 9:31
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  s <- "ab" and print(s) leads to "ab" und not "a\b" so there must be a difference? Or am I wrong?
  
  – TobiSonne
  Mar 27 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  R doesn't interpret "b" as a special character. Try "ax" and you get an error about "hex digits" which is what "xfc" is.
  
  – dipetkov
  Mar 27 at 11:52
  

  
  
  
  

add a comment | 

The last line gives the result you want. The backslash is escaped when the string is printed. To see that, let's save the string to file and then see the content of the file.

s <- stringr::str_replace_all("Müller", "ü", "\\xfc")

writeLines(s, "test.txt")

cat(readLines("test.txt"))
#> Mxfcller

^{Created on 2019-03-27 by the reprex package (v0.2.1)}

Also see this GitHub issue: https://github.com/STAT545-UBC/Discussion/issues/394

share|improve this answer

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

s <- stringr::str_replace_all("Müller", "ü", "\\xfc")

writeLines(s, "test.txt")

cat(readLines("test.txt"))
#> Mxfcller

share|improve this answer

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges

answered Mar 27 at 9:11

dipetkovdipetkov

1,49611 silver badge88 bronze badges