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fun/examples/file_print_for_file_line_by_line.fun

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#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*/
/*
* Line-by-Line File Processing
*
* Shows techniques for:
* - Reading files line by line using `readline`
* - Conditional processing based on line content
* - Maintaining state between lines (e.g., counters)
* - Implementing custom file formatters
*/
print("=== Line-by-line print start ===")
string file = "/etc/passwd"
// Print each line in a file
fun print_file_lines(path)
content = read_file(path)
lines = split(content, "\n")
for line in lines
print(line)
print("Printing file: " + file)
print_file_lines(file)
print("=== Line-by-line print end ===")
/* Expected output:
? The content of /etc/passwd
Like: cat /etc/passwd
*/