special-characters

问题 How might one go about printing an em dash in C? One of these: — Whenever I do: printf("—") I just get a ù in the terminal. Thank you. EDIT: The following code is supposed to print out an Xs an Os looking grid with em dashes for the horizontal lines. int main () { char grid[3][3] = {{'a', 'a', 'a'}, {'a', 'a', 'a'}, {'a', 'a', 'a'}}; int i, j; for (i = 0; i < 3; i++) { for (j = 0; j < 3; j++) { if (j != 0) { printf("|"); } printf(" %c ", grid[i][j]); } if (i != 2) { printf("\n——————————————\n

问题 I have the following code if "%userInput%"==""" ( do_something ) I would like it to detect if the %userInput% is a quote( " ). However, this code throws an error. How to detect if input is a quote? 回答1: Here is a solution without delayed expansion that should work with any input, including spaces and poison characters. My test code is in a loop. When you are ready to quit, simply press <Enter> without typing anything. @echo off setlocal :loop set "var=" set /p "var=enter a string: " if not

问题 I have an Android app which searches for data in an SQLite database with FTS4 virtual tables. It works fine, but when the data inside the tables contain special characters (like 'á', 'é', 'í', 'ó', 'ú' or 'ñ') the SQLite MATCH function gives no results. I'm lost at this point. Thanks. 回答1: Attention: default tokenizer is really poor. To get good results you should implement a custom tokenizer. The path isn't so simple: find the tokenizer (with stemmer?) that should fit your need, or develop

问题 I am doing some work for a French client and so need to deal with accented characters. But I'm running into a lot of difficulty, I am hoping the solution is simple and that somebody can point it out to me. The string: La Forêt pour Témoin is converted to: La For? pour T?oin Note the missing character following the accented character - the t following the ê and the m following the é . I have tried using StringEscapeUtils which was successful at escaping some characters, such as ă . I have also

问题 I am doing some work for a French client and so need to deal with accented characters. But I'm running into a lot of difficulty, I am hoping the solution is simple and that somebody can point it out to me. The string: La Forêt pour Témoin is converted to: La For? pour T?oin Note the missing character following the accented character - the t following the ê and the m following the é . I have tried using StringEscapeUtils which was successful at escaping some characters, such as ă . I have also

问题 I have a csv file where column names include spaces and special characters. fread imports them with quotes - but how can I change this behaviour? One reason is that I have column names starting with a space and I don't know how to handle them. Any pointers would be helpful. Edit: An example. > packageVersion("data.table") [1] ‘1.8.8’ p2p <- fread("p2p.csv", header = TRUE, stringsAsFactors=FALSE) > head(p2p[,list(Principal remaining)]) Error: unexpected symbol in "head(p2p[,list(Principal

问题 I can use setText("åäö") but if I type on my keyboard it doesn't show up, this doesn't work either public void keyTyped(TextField textField, char key) { JOptionPane.showMessageDialog(new JFrame(), key); } The strange thing is that it doesn't work on mac but it does work on Windows, does anyone have an answer for that? Thank You! Here's another question with a similarly topic! How do you get input from special characters in Libgdx? I have tried to get the ascii value and puting it through Gdx

问题 I can use setText("åäö") but if I type on my keyboard it doesn't show up, this doesn't work either public void keyTyped(TextField textField, char key) { JOptionPane.showMessageDialog(new JFrame(), key); } The strange thing is that it doesn't work on mac but it does work on Windows, does anyone have an answer for that? Thank You! Here's another question with a similarly topic! How do you get input from special characters in Libgdx? I have tried to get the ascii value and puting it through Gdx

问题 I am trying to validate a string, that should contain letters numbers and special characters &-._ only. For that I tried with a regular expression. var pattern = /[a-zA-Z0-9&_\.-]/ var qry = 'abc&*'; if(qry.match(pattern)) { alert('valid'); } else{ alert('invalid'); } While using the above code, the string abc&* is valid. But my requirement is to show this invalid. ie Whenever a character other than a letter, a number or special characters &-._ comes, the string should evaluate as invalid.

问题 I am trying to validate a string, that should contain letters numbers and special characters &-._ only. For that I tried with a regular expression. var pattern = /[a-zA-Z0-9&_\.-]/ var qry = 'abc&*'; if(qry.match(pattern)) { alert('valid'); } else{ alert('invalid'); } While using the above code, the string abc&* is valid. But my requirement is to show this invalid. ie Whenever a character other than a letter, a number or special characters &-._ comes, the string should evaluate as invalid.