2 releases
0.1.1 | May 23, 2024 |
---|---|
0.1.0 | May 23, 2024 |
#774 in Parser implementations
65KB
2K
SLoC
gomod-rs
A go.mod file parser with location information.
Implemented using nom and nom_locate.
No string copy/clone during parsing.
(except for interpreted strings, which yield Identifier::Interpreted(String)
type)
Example Usage
Here is an example printing all requirements defined in a go.mod file, along with their locations and related contents.
use gomod_rs::{parse_gomod, Context, Directive};
let contents = r#"module example.com/my/thing
go 1.12
require (
example.com/other/thing v1.0.2
example.com/new/thing/v2 v2.3.4
)
exclude example.com/old/thing v1.2.3
replace example.com/bad/thing v1.4.5 => example.com/good/thing v1.4.5
retract [v1.9.0, v1.9.5]"#;
let gomod = parse_gomod(&contents)?;
gomod
.iter()
.filter_map(|i| match i {
Context {
value: Directive::Require { specs },
..
} => Some(specs),
_ => None,
})
.for_each(|require_specs| {
require_specs.iter().for_each(|spec| {
println!(
"Requirement {{name: {}, version: {}}} at line {}, fragment: {}",
spec.value.0,
&spec.value.1 as &str,
spec.range.0.line,
&contents[spec.range.0.offset..spec.range.1.offset]
);
});
});
Above will ouput:
Requirement {name: example.com/other/thing, version: v1.0.2} at line 6, fragment: example.com/other/thing v1.0.2
Requirement {name: example.com/new/thing/v2, version: v2.3.4} at line 7, fragment: example.com/new/thing/v2 v2.3.4
You can also cargo run --example parse -- /path/to/go.mod
.
Dependencies
~1MB
~21K SLoC