How to resolve the algorithm Read entire file step by step in the Euphoria programming language

Published on 12 May 2024 09:40 PM
#Euphoria

How to resolve the algorithm Read entire file step by step in the Euphoria programming language

Table of Contents

Problem Statement

Load the entire contents of some text file as a single string variable. If applicable, discuss: encoding selection, the possibility of memory-mapping. Of course, in practice one should avoid reading an entire file at once if the file is large and the task can be accomplished incrementally instead (in which case check File IO); this is for those cases where having the entire file is actually what is wanted.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Read entire file step by step in the Euphoria programming language

Source code in the euphoria programming language

function load_file(sequence filename)
  integer fn,c
  sequence data
    fn = open(filename,"r") -- "r" for text files, "rb" for binary files
    if (fn = -1) then return {} end if -- failed to open the file

    data = {} -- init to empty sequence
    c = getc(fn) -- prime the char buffer
    while (c != -1) do -- while not EOF
      data &= c -- append each character
      c = getc(fn) -- next char
    end while

    close(fn)
    return data
end function

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