CODEWITHSUNDEEP
flutterdart
rameez khan
rameez khan

Reputation: 359

Flutter break string in array and split it

I am receiving data in a string like this

IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION)FOR ONLY PARENTS ||||||||||ACCIDENTAL INJURIES=COVERED|||||MEDICAL EMERGENCIES=COVERED FROM OPD AND OPD REIMBURSEMENT BASIS

I want to show this in listview. And I need to break it by ||||| and split it by =

Mean in the list it will show like

 IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION)FOR ONLY PARENTS 
 ACCIDENTAL INJURIES : COVERED
 MEDICAL EMERGENCIES : COVERED FROM OPD AND OPD REIMBURSEMENT BASIS

The issue is how can I break it by |||? because sometimes the length of | is 5 sometimes 10 and so on. I just want whenever | is come it's just skip remaining | and just break it.

I am doing like this

  List wordings = wording.split('||||');
  print(wordings);
  List splited;
  wordings.forEach((element) {
    splited = element.split('=');

    var displayPolicy = {'name': splited[0], 'value': splited[1]};
    displayData.add(displayPolicy);
  });

It's working but the issue in this is its only break when |||| is four i want to skip this at any length

Edit

I am now doing like this

  String wording = data['records'][0]['policies'][0]['policywording'];
  List wordings = wording.split(RegExp(r"[|]+"));
  print(wordings);
  List splited;
  wordings.forEach((element) {
    splited = element.split('=');
    var displayPolicy = {'name': splited[0], 'value': splited[1]};
    displayData.add(displayPolicy);
  });
  print(displayData);

when I print wordings it's showing like this

[IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION), , ||ACCIDENTAL INJURIES=COVERED, |MEDICAL EMERGENCIES=COVERED FROM OPD]

It's not splitting and showing an error

enter image description here

Upvotes: 0

Views: 668

Answers (6)

Akhlaq Shah
Akhlaq Shah

Reputation: 358

Because the first element of your list wording ("IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION)FOR ONLY PARENTS") doesn't contain '=' , so now first element of your List splited is "IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION)FOR ONLY PARENTS" and there's no second element, that's why it's throwing a range error,, because there's no index 1, simply the length of splited is 1, and you're trying to access second element, that's not possible.

Make sure the length of the list splited is 2, and if it's not add an empty string for index 1;

check this example

 List wordings = wording.split('||||');
  print(wordings);
   List splited;
   wordings.forEach((element) {
   splited = element.split('=');
     if(splited.lenght <2){
       splited.add('n/a');
     }

    var displayPolicy = {'name': splited[0], 'value': splited[1]};
    displayData.add(displayPolicy);
});

Upvotes: -1

Nagual
Nagual

Reputation: 2089

use regexp to split
List wordings = wording.split(RegExp(r'\|+'));

List wordings = wording.split(RegExp(r'\|+'));
print(wordings);
List splited;
wordings.forEach((element) {
  splited = element.split('=');
  var displayPolicy = {'name': splited[0], 'value': splited.length > 1 ? splited[1] : ''};
  displayData.add(displayPolicy);
});
print(displayData);

Upvotes: 1

Umaiz Khan
Umaiz Khan

Reputation: 1227

Above both answers are correct you need to add some condition because on your string all values don't have "=" sign so that's why its showing this error. You can handle it like this

List wordings = wording.split(RegExp(r'\|+'));
List splited;
wordings.forEach((element) {
  if (element.contains("=")) {
    splited = element.split('=');

    var displayPolicy = {'name': splited[0], 'value': splited[1]};
    displayData.add(displayPolicy);
  } else {
    var displayPolicy = {'name': element, 'value': ''};
    displayData.add(displayPolicy);
  }
});

if your data don't have "=" it will just add in "name" of displayPolicy and if its have "=" sign then they have both name and value. you can manage it by your pattern now.

Upvotes: 0

Mr.Paul
Mr.Paul

Reputation: 177

You can try like this if you want

String text = "IN-PATIENT AND DAYCARE TREATMENT (HOSPITALIZATION)FOR ONLY PARENTS ||||||||||ACCIDENTAL INJURIES=COVERED|||||MEDICAL EMERGENCIES=COVERED FROM OPD AND OPD REIMBURSEMENT BASIS";
  List sentences = text.split('|');
  sentences.forEach((wordPart){
    if(wordPart != ""){
      // Here do your another split for the equals
    }
  });

Upvotes: 0

Sajjad
Sajjad

Reputation: 3218

you can use regex

 wording.split(RegExp(r"[|]+"));

this site is a good place to learn https://regexone.com/

Upvotes: 2

w461
w461

Reputation: 2678

I would split it by '|' and store it in a list, parse the list and remove empty elements.

Upvotes: -1

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