No Comment

Remove comments from a char iterator.

This crate provides the WithoutComments iterator and the IntoWithoutComments trait implemented for all Iterator<Item=char> providing the without_comments method. Comment specifications are available for rust-style, c-style, python-style, and haskell-style line and block comments, a way to specify custom comment specifications is planned. This crate is intended to be used for removing comments from text, not from code, for this reason, "\*" will still open a block comment in rust mode because string literals have no semantic significance.

Usage

Add this to your Cargo.toml:

toml [dependencies] without-comments = "0.0.1"

main.rs: ```rust fn main() { use std::fs::readtostring; use no_comment::{IntoWithoutComments as _, languages};

    let without_comments = read_to_string("tests.txt")
        .unwrap()
        .chars()
        .without_comments(languages::rust())
        .collect::<String>();

    println!("{}", without_comments);

} ```

test.txt: text This is text // this is a (rust) line comment This is more text /* this is a (rust) block comment /* this one is nested */ */ This is text again /* If a comment is left open, it keeps going until the end.

output: ```text This is text This is more text This is text again

```

Note that trailing spaces and newlines are preserved, showing whitespace the output looks like this:

```text This·is·text·¶ This·is·more·text·¶ This·is·text·again¶

```