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|
use regex::Regex;
use std::sync::LazyLock;
pub trait Normalize {
/// Normalize the string value into a common format.
///
/// Makes it possible to compare different representations of translation messages.
fn normalize(&self) -> String;
}
mod android {
use super::*;
use crate::android::StringValue;
static APOSTROPHES: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"\\'").unwrap());
static DOUBLE_QUOTES: LazyLock<Regex> = LazyLock::new(|| Regex::new(r#"\\""#).unwrap());
static PARAMETERS: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"%[0-9]*\$").unwrap());
impl Normalize for StringValue {
fn normalize(&self) -> String {
// Unescape apostrophes
let value = APOSTROPHES.replace_all(self, "'");
// Unescape double quotes
let value = DOUBLE_QUOTES.replace_all(&value, r#"""#);
// Mark where parameters are positioned, removing the parameter index
let value = PARAMETERS.replace_all(&value, "%");
// Unescape XML characters
htmlize::unescape(value).into()
}
}
impl StringValue {
pub fn normalize_keep_parameter_indices(&self) -> String {
// Unescape apostrophes
let value = APOSTROPHES.replace_all(self, "'");
// Unescape double quotes
let value = DOUBLE_QUOTES.replace_all(&value, r#"""#);
// Unescape XML characters
htmlize::unescape(value).into()
}
}
}
mod gettext {
use super::*;
use crate::gettext::MsgString;
static ESCAPED_SINGLE_QUOTES: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"\\'").unwrap());
static ESCAPED_DOUBLE_QUOTES: LazyLock<Regex> = LazyLock::new(|| Regex::new(r#"\\""#).unwrap());
// Look for both %(...) and %(1-9)$(...) as we now push the latter to the common translation file
static NAMED_PARAMETERS: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"%\([^)]*\)").unwrap());
static ORDERED_PARAMETERS: LazyLock<Regex> =
LazyLock::new(|| Regex::new(r"%[0-9]*\$").unwrap());
impl Normalize for MsgString {
fn normalize(&self) -> String {
// Mark where parameters are positioned, removing the parameter name
let string = NAMED_PARAMETERS.replace_all(self, "%");
let string = ORDERED_PARAMETERS.replace_all(&string, "%");
// Remove escaped single-quotes
let string = ESCAPED_SINGLE_QUOTES.replace_all(&string, r"'");
// Remove escaped double-quotes
let string = ESCAPED_DOUBLE_QUOTES.replace_all(&string, r#"""#);
string.into_owned()
}
}
}
#[cfg(test)]
mod tests {
use super::Normalize;
#[test]
fn normalize_android_string_value() {
use crate::android::StringValue;
let input = StringValue::from_unescaped(
concat!(
"'Inside single quotes'",
r#""Inside double quotes""#,
"With parameters: %1$d, %2$s",
),
None,
);
let expected = concat!(
"'Inside single quotes'",
r#""Inside double quotes""#,
"With parameters: %d, %s",
);
assert_eq!(input.normalize(), expected);
}
#[test]
fn normalize_gettext_msg_string() {
use crate::gettext::MsgString;
let input = MsgString::from_escaped(concat!(
"'Inside single quotes'",
r"\'Inside escaped single quotes\'",
r#"\"Inside double quotes\""#,
"With parameters: %(number)d, %(string)s",
));
let expected = concat!(
"'Inside single quotes'",
"'Inside escaped single quotes'",
r#""Inside double quotes""#,
"With parameters: %d, %s",
);
assert_eq!(input.normalize(), expected);
}
}
|
