Move utf8_strlen() out to libdcp.

3 files changed, 1 insertions, 22 deletions

diff --git a/src/lib/hints.cc b/src/lib/hints.cc
index ac41b61b8..90b88a6ef 100644
--- a/src/lib/hints.cc
+++ b/src/lib/hints.cc
@@ -607,7 +607,7 @@ Hints::closed_caption(PlayerText text, DCPTimePeriod period)
 			line.second.end(),
 			0,
 			[](int acc, StringText const& text) {
-				return acc + utf8_strlen(text.text());
+				return acc + dcp::utf8_strlen(text.text());
 			});
 
 		if (length > MAX_CLOSED_CAPTION_LENGTH && !_long_ccap) {
diff --git a/src/lib/util.cc b/src/lib/util.cc
index adc347ab1..1f5bec22c 100644
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -842,26 +842,6 @@ remap(shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping ma
 }
 
 
-size_t
-utf8_strlen(string s)
-{
-	size_t const len = s.length();
-	int N = 0;
-	for (size_t i = 0; i < len; ++i) {
-		unsigned char c = s[i];
-		if ((c & 0xe0) == 0xc0) {
-			++i;
-		} else if ((c & 0xf0) == 0xe0) {
-			i += 2;
-		} else if ((c & 0xf8) == 0xf0) {
-			i += 3;
-		}
-		++N;
-	}
-	return N;
-}
-
-
 /** @param size Size of picture that the subtitle will be overlaid onto */
 void
 emit_subtitle_image(ContentTimePeriod period, dcp::TextImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
diff --git a/src/lib/util.h b/src/lib/util.h
index aa003ff00..9863e5d94 100644
--- a/src/lib/util.h
+++ b/src/lib/util.h
@@ -84,7 +84,6 @@ extern std::string atmos_asset_filename(std::shared_ptr<dcp::AtmosAsset> asset,
 extern std::string careful_string_filter(std::string s, std::wstring allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_.+");
 extern std::pair<int, int> audio_channel_types(std::list<int> mapped, int channels);
 extern std::shared_ptr<AudioBuffers> remap(std::shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map);
-extern size_t utf8_strlen(std::string s);
 extern void emit_subtitle_image(dcpomatic::ContentTimePeriod period, dcp::TextImage sub, dcp::Size size, std::shared_ptr<TextDecoder> decoder);
 extern void copy_in_bits(boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)>);
 extern dcp::Size scale_for_display(dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta);