52 lines
1.5 KiB
Rust
52 lines
1.5 KiB
Rust
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//! Crate wrapping what we need from ICU’s C API for JIDs.
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//!
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//! See http://site.icu-project.org/
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use crate::bindings::{
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icu_spoof_get_skeleton, icu_spoof_open, icu_spoof_set_checks, UErrorCode, USpoofChecker,
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U_ZERO_ERROR,
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};
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use crate::error::Error;
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/// TODO: spoof checker.
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pub struct SpoofChecker {
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inner: *mut USpoofChecker,
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}
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impl SpoofChecker {
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/// Create a new SpoofChecker.
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pub fn new(checks: i32) -> Result<SpoofChecker, UErrorCode> {
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let mut err: UErrorCode = U_ZERO_ERROR;
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let inner = unsafe { icu_spoof_open(&mut err) };
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if err != U_ZERO_ERROR {
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return Err(err);
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}
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unsafe { icu_spoof_set_checks(inner, checks, &mut err) };
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if err != U_ZERO_ERROR {
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return Err(err);
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}
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Ok(SpoofChecker { inner })
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}
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/// Transform a string into a skeleton for matching it with other potentially similar strings.
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pub fn get_skeleton(&self, input: &str) -> Result<String, Error> {
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let mut err: UErrorCode = U_ZERO_ERROR;
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let mut dest: Vec<u8> = vec![0u8; 256];
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let len = unsafe {
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icu_spoof_get_skeleton(
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self.inner,
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0,
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input.as_ptr(),
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input.len() as i32,
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dest.as_mut_ptr(),
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dest.len() as i32,
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&mut err,
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)
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};
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if err != U_ZERO_ERROR {
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return Err(Error::from_icu_code(err));
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}
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dest.truncate(len as usize);
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Ok(String::from_utf8(dest)?)
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}
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}
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