Multiline strings in JSON

Question

I'm writing some data files in JSON format and would like to have some really long string values split over multiple lines. Using python's JSON module I get a whole lot of errors, whether I use \ or \n as an escape.

Is it possible to have multi-line strings in JSON? It's mostly for visual comfort so I suppose I can just turn word wrap on in my editor, but I'm just kinda curious...

Answer 1

you could simply run the code below with your desire multiline string between tilde ~ character:

var multiLineString = `
this
    is
        the
            multiline
                    String

`;
JSON.stringify(multiLineString);

Answer 2

JSON does not allow real line-breaks. You need to replace all the line breaks with \n.

eg:

"first line second line"

can saved with:

"first line\nsecond line"

Note:

for Python, should written as:

"first line\\nsecond line"

which \\ is for escape backslash, otherwise python will treat \n as control character: new line

Answer 3

I have had to do this for a small Node.js project and found this work-around:

{
 "modify_head": [

  "<script type='text/javascript'>",
  "<!--",
  "  function drawSomeText(id) {",
  "  var pjs = Processing.getInstanceById(id);",
  "  var text = document.getElementById('inputtext').value;",
  "  pjs.drawText(text);}",
  "-->",
  "</script>"

 ],

 "modify_body": [

  "<input type='text' id='inputtext'></input>",
  "<button onclick=drawSomeText('ExampleCanvas')></button>"

 ],
}

This looks quite neat to me, appart from that I have to use double quotes everywhere. Though otherwise, I could, perhaps, use YAML, but that has other pitfalls and is not supported natively. Once parsed, I just use myData.modify_head.join('\n') or myData.modify_head.join(), depending upon whether I want a line break after each string or not.

Answer 4

You can try place <div></div>between sentences.

Answer 5

fieldval = rs.getString(rs.getMetaData().getColumnName(i))
  .trim()
  .replace("\\", "/")
  .replace("\r\n", "\\n")
  .replace("''", "\\n")
  .replace("\"", "\\n");

Answer 6

put the multiline text on txt file and then

var str = {
    text: cat('path_to_file/text.txt')
}

(it work's on mongoDB)