1 files changed, 160 insertions, 0 deletions
diff --git a/intl/icu_capi/cpp/examples/segmenter/test.cpp b/intl/icu_capi/cpp/examples/segmenter/test.cpp
new file mode 100644
index 0000000000..cfe0899f76
--- /dev/null
+++ b/intl/icu_capi/cpp/examples/segmenter/test.cpp
@@ -0,0 +1,160 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+#include "../../include/ICU4XDataProvider.hpp"
+#include "../../include/ICU4XGraphemeClusterSegmenter.hpp"
+#include "../../include/ICU4XLineSegmenter.hpp"
+#include "../../include/ICU4XSentenceSegmenter.hpp"
+#include "../../include/ICU4XWordSegmenter.hpp"
+#include "../../include/ICU4XLogger.hpp"
+
+#include <iostream>
+#include <string_view>
+
+using std::cout;
+using std::endl;
+
+void print_ruler(size_t str_len) {
+    for (size_t i = 0; i < str_len; i++) {
+        if (i % 10 == 0) {
+            cout << "0";
+        } else if (i % 5 == 0) {
+            cout << "5";
+        } else {
+            cout << ".";
+        }
+    }
+    cout << endl;
+}
+
+template <typename Iterator>
+void iterate_breakpoints(Iterator& iterator) {
+    while (true) {
+        int32_t breakpoint = iterator.next();
+        if (breakpoint == -1) {
+            break;
+        }
+        cout << " " << breakpoint;
+    }
+    cout << endl;
+}
+
+template <typename Iterator>
+void iterate_word_breakpoints(Iterator& iterator) {
+    while (true) {
+        int32_t breakpoint = iterator.next();
+        if (breakpoint == -1) {
+            break;
+        }
+        cout << " " << breakpoint;
+        switch (iterator.word_type()) {
+            case ICU4XSegmenterWordType::None:
+                cout << " (none";
+                break;
+            case ICU4XSegmenterWordType::Number:
+                cout << " (number";
+                break;
+            case ICU4XSegmenterWordType::Letter:
+                cout << " (letter";
+                break;
+            default:
+                cout << " (unknown status";
+                break;
+        }
+        if (iterator.is_word_like()) {
+            cout << ", word-like";
+        }
+        cout << ")";
+    }
+    cout << endl;
+}
+
+void test_line(const std::string_view& str) {
+    const auto provider = ICU4XDataProvider::create_compiled();
+    const auto segmenter_auto =
+        ICU4XLineSegmenter::create_auto(provider).ok().value();
+    const auto segmenter_lstm =
+        ICU4XLineSegmenter::create_lstm(provider).ok().value();
+    const auto segmenter_dictionary =
+        ICU4XLineSegmenter::create_dictionary(provider).ok().value();
+
+    const ICU4XLineSegmenter* segmenters[] = {&segmenter_auto, &segmenter_lstm,
+                                              &segmenter_dictionary};
+    for (const auto* segmenter : segmenters) {
+        cout << "Finding line breakpoints in string:" << endl << str << endl;
+        print_ruler(str.size());
+
+        cout << "Line breakpoints:";
+        auto iterator = segmenter->segment_utf8(str);
+        iterate_breakpoints(iterator);
+    }
+}
+
+void test_grapheme(const std::string_view& str) {
+    const auto provider = ICU4XDataProvider::create_compiled();
+    const auto segmenter = ICU4XGraphemeClusterSegmenter::create(provider).ok().value();
+    cout << "Finding grapheme cluster breakpoints in string:" << endl
+         << str << endl;
+    print_ruler(str.size());
+
+    cout << "Grapheme cluster breakpoints:";
+    auto iterator = segmenter.segment_utf8(str);
+    iterate_breakpoints(iterator);
+}
+
+void test_word(const std::string_view& str) {
+    const auto provider = ICU4XDataProvider::create_compiled();
+    const auto segmenter_auto =
+        ICU4XWordSegmenter::create_auto(provider).ok().value();
+    const auto segmenter_lstm =
+        ICU4XWordSegmenter::create_lstm(provider).ok().value();
+    const auto segmenter_dictionary =
+        ICU4XWordSegmenter::create_dictionary(provider).ok().value();
+
+    const ICU4XWordSegmenter* segmenters[] = {&segmenter_auto, &segmenter_lstm,
+                                              &segmenter_dictionary};
+    for (const auto* segmenter : segmenters) {
+        cout << "Finding word breakpoints in string:" << endl << str << endl;
+        print_ruler(str.size());
+
+        cout << "Word breakpoints:";
+        auto iterator = segmenter->segment_utf8(str);
+        iterate_word_breakpoints(iterator);
+    }
+}
+
+void test_sentence(const std::string_view& str) {
+    const auto provider = ICU4XDataProvider::create_compiled();
+    const auto segmenter = ICU4XSentenceSegmenter::create(provider).ok().value();
+    cout << "Finding sentence breakpoints in string:" << endl
+         << str << endl;
+    print_ruler(str.size());
+
+    cout << "Sentence breakpoints:";
+    auto iterator = segmenter.segment_utf8(str);
+    iterate_breakpoints(iterator);
+}
+
+int main(int argc, char* argv[]) {
+    ICU4XLogger::init_simple_logger();
+    std::string_view str;
+    if (argc >= 2) {
+        str = argv[1];
+    } else {
+        str = "The 101 quick brown foxes jump over the lazy dog.";
+    }
+
+    test_line(str);
+    cout << endl;
+
+    test_grapheme(str);
+    cout << endl;
+
+    test_word(str);
+    cout << endl;
+
+    test_sentence(str);
+    cout << endl;
+    return 0;
+}