This crate provide parsing fontconfig file but not yet complete all features
see <https://www.freedesktop.org/software/fontconfig/fontconfig-user.html> for more detail infomation of fontconfig file
```rust
use fontconfig_parser::parse_document_from_str;
if let Ok(document_str) = std::fs::read_to_string("/etc/fonts/fonts.conf") {
}
```
License: MIT