Pseudocode trouble [duplicate]

I have a task to write a program in pseudocode that prints the frequency of occurrence of characters in the entered text. I found an example code in c language but I can’t seem to write it in pseudocode. I need to comment every line of code. If someone has a solution, I would be extremely grateful.

A friend sent me a code in Java, but I can’t solve it either because I don’t know how to define the length of the entered text.

const analyzedText =
  'Some input text that is being analyzed that has special characters "!!!!", "?" or whatever else is considered to be special character..';

// set empty map to store frequency in
const frequencyMap = {};

// loop over every leather in the
for (let i = 0; i < analyzedText.length; i++) {
  const character = analyzedText[i].toLocaleLowerCase().trim();
  // skip empty spaces
  if (character.length === 0) {
    continue;
  }

  if (frequencyMap.hasOwnProperty(character)) {
    frequencyMap[character] = frequencyMap[character] + 1;
  } else {
    frequencyMap[character] = 1;
  }
}

console.log('frequencyMap :>> ', JSON.stringify(frequencyMap, undefined, 4));