Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 461 insertions, 0 deletions

diff --git a/intl/locale/rust/fluent-langneg-ffi/Cargo.toml b/intl/locale/rust/fluent-langneg-ffi/Cargo.toml
new file mode 100644
index 0000000000..88d6bad4d4
--- /dev/null
+++ b/intl/locale/rust/fluent-langneg-ffi/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "fluent-langneg-ffi"
+version = "0.1.0"
+license = "MPL-2.0"
+authors = ["Zibi Braniecki <zibi@braniecki.net>"]
+edition = "2018"
+
+[dependencies]
+nsstring = { path = "../../../../xpcom/rust/nsstring" }
+thin-vec = { version = "0.2.1", features = ["gecko-ffi"] }
+fluent-langneg = { version = "0.13", features = ["cldr"] }
+unic-langid = "0.9"
+unic-langid-ffi = { path = "../unic-langid-ffi" }
diff --git a/intl/locale/rust/fluent-langneg-ffi/cbindgen.toml b/intl/locale/rust/fluent-langneg-ffi/cbindgen.toml
new file mode 100644
index 0000000000..98ec15d389
--- /dev/null
+++ b/intl/locale/rust/fluent-langneg-ffi/cbindgen.toml
@@ -0,0 +1,17 @@
+header = """/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */"""
+autogen_warning = """/* DO NOT MODIFY THIS MANUALLY! This file was generated using cbindgen. See RunCbindgen.py */
+#ifndef mozilla_intl_locale_MozLocaleBindings_h
+#error "Don't include this file directly, instead include MozLocaleBindings.h"
+#endif
+"""
+include_version = true
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+language = "C++"
+namespaces = ["mozilla", "intl", "ffi"]
+
+[export.rename]
+"ThinVec" = "nsTArray"
diff --git a/intl/locale/rust/fluent-langneg-ffi/src/lib.rs b/intl/locale/rust/fluent-langneg-ffi/src/lib.rs
new file mode 100644
index 0000000000..591e9ef861
--- /dev/null
+++ b/intl/locale/rust/fluent-langneg-ffi/src/lib.rs
@@ -0,0 +1,79 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use fluent_langneg::negotiate::NegotiationStrategy as LangNegNegotiationStrategy;
+use fluent_langneg::negotiate_languages;
+use nsstring::nsACString;
+use nsstring::nsCString;
+use thin_vec::ThinVec;
+use unic_langid::{LanguageIdentifier, LanguageIdentifierError};
+use unic_langid_ffi::new_langid_for_mozilla;
+
+/// We want to return the exact strings that were passed to us out of the
+/// available and default pool. Since for the negotiation we canonicalize them
+/// in `LanguageIdentifier`, this struct will preserve the original, non-canonicalized
+/// string, and then use it to populate return array.
+#[derive(Debug, PartialEq)]
+struct LangIdString<'l> {
+    pub source: &'l nsCString,
+    pub langid: LanguageIdentifier,
+}
+
+impl<'l> LangIdString<'l> {
+    pub fn try_new(s: &'l nsCString) -> Result<Self, LanguageIdentifierError> {
+        new_langid_for_mozilla(s).map(|l| LangIdString {
+            source: s,
+            langid: l,
+        })
+    }
+}
+
+impl<'l> AsRef<LanguageIdentifier> for LangIdString<'l> {
+    fn as_ref(&self) -> &LanguageIdentifier {
+        &self.langid
+    }
+}
+
+#[repr(C)]
+pub enum NegotiationStrategy {
+    Filtering,
+    Matching,
+    Lookup,
+}
+
+fn get_strategy(input: NegotiationStrategy) -> LangNegNegotiationStrategy {
+    match input {
+        NegotiationStrategy::Filtering => LangNegNegotiationStrategy::Filtering,
+        NegotiationStrategy::Matching => LangNegNegotiationStrategy::Matching,
+        NegotiationStrategy::Lookup => LangNegNegotiationStrategy::Lookup,
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn fluent_langneg_negotiate_languages(
+    requested: &ThinVec<nsCString>,
+    available: &ThinVec<nsCString>,
+    default: &nsACString,
+    strategy: NegotiationStrategy,
+    result: &mut ThinVec<nsCString>,
+) {
+    let requested = requested
+        .iter()
+        .filter_map(|s| new_langid_for_mozilla(s).ok())
+        .collect::<Vec<_>>();
+
+    let available = available
+        .iter()
+        .filter_map(|s| LangIdString::try_new(s).ok())
+        .collect::<Vec<_>>();
+
+    let d: nsCString = default.into();
+    let default = LangIdString::try_new(&d).ok();
+
+    let strategy = get_strategy(strategy);
+
+    for l in negotiate_languages(&requested, &available, default.as_ref(), strategy) {
+        result.push(l.source.clone());
+    }
+}
diff --git a/intl/locale/rust/oxilangtag-ffi/Cargo.toml b/intl/locale/rust/oxilangtag-ffi/Cargo.toml
new file mode 100644
index 0000000000..ee3b1cf5c8
--- /dev/null
+++ b/intl/locale/rust/oxilangtag-ffi/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "oxilangtag-ffi"
+version = "0.1.0"
+license = "MPL-2.0"
+authors = ["Jonathan Kew <jkew@mozilla.com>"]
+edition = "2021"
+
+[dependencies]
+nsstring = { path = "../../../../xpcom/rust/nsstring" }
+oxilangtag = "0.1.3"
diff --git a/intl/locale/rust/oxilangtag-ffi/cbindgen.toml b/intl/locale/rust/oxilangtag-ffi/cbindgen.toml
new file mode 100644
index 0000000000..21d703000b
--- /dev/null
+++ b/intl/locale/rust/oxilangtag-ffi/cbindgen.toml
@@ -0,0 +1,15 @@
+header = """/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */"""
+autogen_warning = """/* DO NOT MODIFY THIS MANUALLY! This file was generated using cbindgen. See RunCbindgen.py */
+"""
+include_version = true
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+language = "C++"
+namespaces = ["mozilla", "intl", "ffi"]
+
+[parse]
+parse_deps = true
+include = ["oxilangtag"]
diff --git a/intl/locale/rust/oxilangtag-ffi/src/lib.rs b/intl/locale/rust/oxilangtag-ffi/src/lib.rs
new file mode 100644
index 0000000000..5a30e9b77f
--- /dev/null
+++ b/intl/locale/rust/oxilangtag-ffi/src/lib.rs
@@ -0,0 +1,126 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use nsstring::nsACString;
+use oxilangtag::LanguageTag;
+
+pub struct LangTag; // Opaque type for ffi interface.
+
+/// Parse a string as a BCP47 language tag. Returns a `LangTag` object if the string is
+/// successfully parsed; this must be freed with `lang_tag_destroy`.
+///
+/// The string `tag` must outlive the `LangTag`.
+///
+/// Returns null if `tag` is not a well-formed BCP47 tag (including if it is not
+/// valid UTF-8).
+#[no_mangle]
+pub extern "C" fn lang_tag_new(tag: &nsACString) -> *mut LangTag {
+    if let Ok(tag_str) = core::str::from_utf8(tag.as_ref()) {
+        if let Ok(language_tag) = LanguageTag::parse(tag_str) {
+            return Box::into_raw(Box::new(language_tag)) as *mut LangTag;
+        }
+    }
+    std::ptr::null_mut()
+}
+
+/// Free a `LangTag` instance.
+#[no_mangle]
+pub extern "C" fn lang_tag_destroy(lang: *mut LangTag) {
+    if lang.is_null() {
+        return;
+    }
+    let _ = unsafe { Box::from_raw(lang as *mut LanguageTag<&str>) };
+}
+
+/// Matches an HTML language attribute against a CSS :lang() selector using the
+/// "extended filtering" algorithm.
+/// The attribute is a BCP47 language tag that was successfully parsed by oxilangtag;
+/// the selector is a string that is treated as a language range per RFC 4647.
+#[no_mangle]
+pub extern "C" fn lang_tag_matches(attribute: *const LangTag, selector: &nsACString) -> bool {
+    // This should only be called with a pointer that we got from lang_tag_new().
+    let lang = unsafe { *(attribute as *const LanguageTag<&str>) };
+
+    // Our callers guarantee that the selector string is valid UTF-8.
+    let range_str = unsafe { selector.as_str_unchecked() };
+
+    if lang.is_empty() || range_str.is_empty() {
+        return false;
+    }
+
+    // RFC 4647 Extended Filtering:
+    // https://datatracker.ietf.org/doc/html/rfc4647#section-3.3.2
+
+    // 1.  Split both the extended language range and the language tag being
+    // compared into a list of subtags by dividing on the hyphen (%x2D)
+    // character.  Two subtags match if either they are the same when
+    // compared case-insensitively or the language range's subtag is the
+    // wildcard '*'.
+
+    let mut range_subtags = range_str.split('-');
+    let mut lang_subtags = lang.as_str().split('-');
+
+    // 2.  Begin with the first subtag in each list.  If the first subtag in
+    // the range does not match the first subtag in the tag, the overall
+    // match fails.  Otherwise, move to the next subtag in both the
+    // range and the tag.
+
+    let mut range_subtag = range_subtags.next();
+    let mut lang_subtag = lang_subtags.next();
+    // Cannot be None, because we checked that both args were non-empty.
+    assert!(range_subtag.is_some() && lang_subtag.is_some());
+    if !(range_subtag.unwrap() == "*"
+        || range_subtag
+            .unwrap()
+            .eq_ignore_ascii_case(lang_subtag.unwrap()))
+    {
+        return false;
+    }
+
+    range_subtag = range_subtags.next();
+    lang_subtag = lang_subtags.next();
+
+    // 3.  While there are more subtags left in the language range's list:
+    loop {
+        // 4.  When the language range's list has no more subtags, the match
+        // succeeds.
+        let Some(range_subtag_str) = range_subtag else {
+            return true;
+        };
+
+        // A.  If the subtag currently being examined in the range is the
+        //     wildcard ('*'), move to the next subtag in the range and
+        //     continue with the loop.
+        if range_subtag_str == "*" {
+            range_subtag = range_subtags.next();
+            continue;
+        }
+
+        // B.  Else, if there are no more subtags in the language tag's
+        //     list, the match fails.
+        let Some(lang_subtag_str) = lang_subtag else {
+            return false;
+        };
+
+        // C.  Else, if the current subtag in the range's list matches the
+        //     current subtag in the language tag's list, move to the next
+        //     subtag in both lists and continue with the loop.
+        if range_subtag_str.eq_ignore_ascii_case(lang_subtag_str) {
+            range_subtag = range_subtags.next();
+            lang_subtag = lang_subtags.next();
+            continue;
+        }
+
+        // D.  Else, if the language tag's subtag is a "singleton" (a single
+        //     letter or digit, which includes the private-use subtag 'x')
+        //     the match fails.
+        if lang_subtag_str.len() == 1 {
+            return false;
+        }
+
+        // E.  Else, move to the next subtag in the language tag's list and
+        //     continue with the loop.
+        lang_subtag = lang_subtags.next();
+    }
+}
diff --git a/intl/locale/rust/unic-langid-ffi/Cargo.toml b/intl/locale/rust/unic-langid-ffi/Cargo.toml
new file mode 100644
index 0000000000..bd969437a6
--- /dev/null
+++ b/intl/locale/rust/unic-langid-ffi/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "unic-langid-ffi"
+version = "0.1.0"
+license = "MPL-2.0"
+authors = ["Zibi Braniecki <zibi@braniecki.net>"]
+edition = "2018"
+
+[dependencies]
+nsstring = { path = "../../../../xpcom/rust/nsstring" }
+thin-vec = { version = "0.2.1", features = ["gecko-ffi"] }
+unic-langid = { version = "0.9", features = ["likelysubtags"] }
diff --git a/intl/locale/rust/unic-langid-ffi/cbindgen.toml b/intl/locale/rust/unic-langid-ffi/cbindgen.toml
new file mode 100644
index 0000000000..3842e5183b
--- /dev/null
+++ b/intl/locale/rust/unic-langid-ffi/cbindgen.toml
@@ -0,0 +1,22 @@
+header = """/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */"""
+autogen_warning = """/* DO NOT MODIFY THIS MANUALLY! This file was generated using cbindgen. See RunCbindgen.py */
+#ifndef mozilla_intl_locale_MozLocaleBindings_h
+#error "Don't include this file directly, instead include MozLocaleBindings.h"
+#endif
+"""
+include_version = true
+braces = "SameLine"
+line_length = 100
+tab_width = 2
+language = "C++"
+namespaces = ["mozilla", "intl", "ffi"]
+
+[parse]
+parse_deps = true
+include = ["unic-langid", "unic-langid-impl"]
+
+[export.rename]
+"ThinVec" = "nsTArray"
+"nsCStr" = "nsDependentCSubstring"
diff --git a/intl/locale/rust/unic-langid-ffi/src/lib.rs b/intl/locale/rust/unic-langid-ffi/src/lib.rs
new file mode 100644
index 0000000000..804a4341e1
--- /dev/null
+++ b/intl/locale/rust/unic-langid-ffi/src/lib.rs
@@ -0,0 +1,168 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use nsstring::{nsACString, nsCStr, nsCString};
+use thin_vec::ThinVec;
+pub use unic_langid::{subtags, CharacterDirection, LanguageIdentifier, LanguageIdentifierError};
+
+pub fn new_langid_for_mozilla(
+    name: &nsACString,
+) -> Result<LanguageIdentifier, LanguageIdentifierError> {
+    if name.eq_ignore_ascii_case(b"ja-jp-mac") {
+        "ja-JP-macos".parse()
+    } else {
+        // Cut out any `.FOO` like `en-US.POSIX`.
+        let mut name: &[u8] = name.as_ref();
+        if let Some(ptr) = name.iter().position(|b| b == &b'.') {
+            name = &name[..ptr];
+        }
+        LanguageIdentifier::from_bytes(name)
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_canonicalize(name: &mut nsACString) -> bool {
+    let langid = new_langid_for_mozilla(name);
+
+    let result = langid.is_ok();
+
+    name.assign(&langid.unwrap_or_default().to_string());
+
+    result
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_new(
+    name: &nsACString,
+    ret_val: &mut bool,
+) -> *mut LanguageIdentifier {
+    let langid = new_langid_for_mozilla(name);
+
+    *ret_val = langid.is_ok();
+    Box::into_raw(Box::new(langid.unwrap_or_default()))
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn unic_langid_destroy(langid: *mut LanguageIdentifier) {
+    let _ = Box::from_raw(langid);
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_as_string(langid: &mut LanguageIdentifier, ret_val: &mut nsACString) {
+    ret_val.assign(&langid.to_string());
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_get_language<'a>(
+    langid: &'a LanguageIdentifier,
+    out: &mut nsCStr<'a>,
+) {
+    *out = nsCStr::from(langid.language.as_str());
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_set_language(
+    langid: &mut LanguageIdentifier,
+    string: &nsACString,
+) -> bool {
+    subtags::Language::from_bytes(string)
+        .map(|lang| langid.language = lang)
+        .is_ok()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_clear_language(langid: &mut LanguageIdentifier) {
+    langid.language.clear()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_get_script<'a>(langid: &'a LanguageIdentifier, out: &mut nsCStr<'a>) {
+    *out = nsCStr::from(langid.script.as_ref().map_or("", |s| s.as_str()));
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_set_script(
+    langid: &mut LanguageIdentifier,
+    string: &nsACString,
+) -> bool {
+    subtags::Script::from_bytes(string)
+        .map(|script| langid.script = Some(script))
+        .is_ok()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_clear_script(langid: &mut LanguageIdentifier) {
+    langid.script = None;
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_get_region<'a>(langid: &'a LanguageIdentifier, out: &mut nsCStr<'a>) {
+    *out = nsCStr::from(langid.region.as_ref().map_or("", |s| s.as_str()));
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_set_region(
+    langid: &mut LanguageIdentifier,
+    string: &nsACString,
+) -> bool {
+    subtags::Region::from_bytes(string)
+        .map(|region| langid.region = Some(region))
+        .is_ok()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_clear_region(langid: &mut LanguageIdentifier) {
+    langid.region = None;
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_get_variants(
+    langid: &LanguageIdentifier,
+    variants: &mut ThinVec<nsCString>,
+) {
+    for v in langid.variants() {
+        variants.push(v.as_str().into());
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_set_variants(
+    langid: &mut LanguageIdentifier,
+    variants: &ThinVec<nsCString>,
+) -> bool {
+    variants
+        .iter()
+        .map(|v| subtags::Variant::from_bytes(v))
+        .collect::<Result<Vec<_>, _>>()
+        .map(|variants| langid.set_variants(&variants))
+        .is_ok()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_clear_variants(langid: &mut LanguageIdentifier) {
+    langid.clear_variants()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_matches(
+    langid: &LanguageIdentifier,
+    other: &LanguageIdentifier,
+    self_as_range: bool,
+    other_as_range: bool,
+) -> bool {
+    langid.matches(other, self_as_range, other_as_range)
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_maximize(langid: &mut LanguageIdentifier) -> bool {
+    langid.maximize()
+}
+
+#[no_mangle]
+pub extern "C" fn unic_langid_is_rtl(name: &nsACString) -> bool {
+    match new_langid_for_mozilla(name) {
+        Ok(langid) => langid.character_direction() == CharacterDirection::RTL,
+        Err(_) => false,
+    }
+}