CKeditor remove extra whitespace at beginning - trim

Question

I am trying to remove the extra whitespaces at the beginning and end of a text generated by ckeditor but not the whtiespaces between the text itself.

I am ending up with many space at beginning and then the actual text.

so I am trying to write a trim function for ckeditor generated text, the traditional trim() not working as the text includes

and sometimes

so I couldn't just write a regex.

Example of the generated text












 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 






here text begins


















another line
















third line 


















fourth line

























sdsdsdsdsd
sdsdsdsdsdsdsd





csdsdsdsdsdsds

I want to remove every tags until the here text begins but this text might vary might be anything,

any suggestions?

user_9530898 · Answer

okay, I have managed to sort this issue with a workaround, the idea is:

1- parse the total string we got from the ckeditor content.getData() to an HTMLCollection,

2- loop over the html tags and delete any tag that does NOT have words by checking the property textContent, as soon as the tag has words exit the loop.

3- loop inside the tag that has words in it and convert the string to array of words by splitting str.split(' ') and loop over the array and remove each or until you reach anything other than these tag and entity then exit the loop.

4- you need to go through this process from the beginning of the (total text you got from ckeditor) and from the end.

        trimedCkEditorText() {
            let contentStr = this.content.getData();
            // Remove Extra whitespaces at the begining of the text
            contentStr = this.trimedCkEditorTextAt(contentStr, true);

            // Remove Extra whitespaces at the end of the text
            contentStr = this.trimedCkEditorTextAt(contentStr, false);

            return contentStr;
        },
        trimedCkEditorTextAt(contentStr, startOfText) {
            const parser = new DOMParser();
            const doc = parser.parseFromString(contentStr, "text/html")

            // Check first child 
            while(doc.body.children.length) {
                const index = startOfText ? 0 : doc.body.children.length - 1; 
                const child = doc.body.children[index];
                
                if(child.textContent.replace(/\s/g, '').length) {
                    // Remove 
 tags
                    while(child.children.length) {
                        const index = startOfText ? 0 : child.children.length - 1; 
                        const grandechild = child.children[index];
                        if(grandechild.localName === 'br') grandechild.remove();
                        else break;
                    }

                    // Remove  
                    const childTextArray = child.innerHTML.split(' ');
                    while(childTextArray.length) {
                        const index = startOfText ? 0 : childTextArray.length - 1; 
                        if(childTextArray[index] === ' ') childTextArray.splice(index, 1);
                        else break;
                    }
                    child.innerHTML = childTextArray.join(' ');
                    break;
                } else {
                    child.remove();
                }
            }

            return doc.body.innerHTML;
        }

CKeditor remove extra whitespace at beginning - trim

1 Answers