chordlib 0.15.0

Work with chord-and-lyrics songs: parse, transform, and render them to multiple formats
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118

use clap::Parser;

use chordlib::Error;
use chordlib::outputs::{
    FormatChordPro, FormatHTML, FormatProPresenter, FormatRender, FormatSongBeamer,
};
use chordlib::types::{ChordRepresentation, SimpleChord};

#[derive(Debug, Parser)]
#[command(author, version, about, long_about = None)]
struct Args {
    /// Input song file (ChordPro, SongBeamer, ProPresenter, or Ultimate Guitar HTML)
    pub input: String,
    /// A boolean flag if the song should be rendered to the stdout
    #[arg(short, long, default_value_t = false)]
    pub render: bool,
    /// Output path; the extension selects the output format
    #[arg(short, long, default_value_t = String::default())]
    pub output: String,
    #[arg(short, long)]
    pub key: Option<u8>,
    #[arg(short, long, default_value_t = false)]
    pub vowel_move: bool,
    #[arg(short, long, default_value_t = false)]
    pub spacing_remove: bool,
    #[arg(short, long, default_value_t = false)]
    pub nashville: bool,
    /// Language index (0 = default, 1 = second language, ...)
    #[arg(short = 'l', long)]
    pub language: Option<usize>,
}

fn main() -> Result<(), Error> {
    let args = Args::parse();

    let representation = Some(if args.nashville {
        ChordRepresentation::Nashville
    } else {
        ChordRepresentation::Default
    });

    let input_lower = args.input.to_ascii_lowercase();
    let mut song = if input_lower.ends_with(".cp")
        || input_lower.ends_with(".wp")
        || input_lower.ends_with(".chopro")
    {
        chordlib::inputs::chord_pro::load(&args.input)
    } else if input_lower.ends_with(".sng") {
        chordlib::inputs::songbeamer::load(&args.input)
    } else if input_lower.ends_with(".pro") {
        chordlib::inputs::propresenter::load(&args.input)
    } else if input_lower.ends_with(".html") {
        let html = std::fs::read_to_string(&args.input)?;
        chordlib::inputs::ultimate_guitar::load_html(&html)
    } else {
        Err(Error::Other(format!(
            "unknown input format ({})",
            args.input
        )))
    }?;

    if let Some(key) = args.key {
        song.apply_key(SimpleChord::new(key));
    }

    if args.vowel_move {
        song = song.move_chords_to_next_vowels();
    }

    if args.spacing_remove {
        song = song.remove_manual_spacing();
    }

    if args.render {
        println!(
            "{}",
            song.format_render(None, representation.as_ref(), args.language)?
        );
    }

    let output_lower = args.output.to_ascii_lowercase();
    if output_lower.ends_with(".cp") || output_lower.ends_with(".chopro") {
        Ok(std::fs::write(
            args.output,
            (&song).format_chord_pro(None, representation.as_ref(), args.language, false),
        )?)
    } else if output_lower.ends_with(".wp") {
        Ok(std::fs::write(
            args.output,
            (&song).format_chord_pro(None, representation.as_ref(), args.language, true),
        )?)
    } else if output_lower.ends_with(".json") {
        Ok(std::fs::write(args.output, serde_json::to_string(&song)?)?)
    } else if output_lower.ends_with(".html") {
        Ok(std::fs::write(
            args.output,
            (&song).format_html(None, representation.as_ref(), args.language, None)?,
        )?)
    } else if output_lower.ends_with(".sng") {
        Ok(std::fs::write(
            args.output,
            (&song).format_songbeamer(None, representation.as_ref())?,
        )?)
    } else if output_lower.ends_with(".pro") {
        Ok(std::fs::write(
            args.output,
            (&song).format_propresenter(None, representation.as_ref(), args.language)?,
        )?)
    } else if args.output.is_empty() {
        Ok(())
    } else {
        Err(Error::Other(format!(
            "unknown output format ({})",
            args.output
        )))
    }?;
    Ok(())
}