input/TextInputStream: return char*

Revert to the old API before commit e9e55b08, removing unnecessary
bloat.

3 files changed, 9 insertions, 13 deletions

diff --git a/src/playlist/plugins/CuePlaylistPlugin.cxx b/src/playlist/plugins/CuePlaylistPlugin.cxx
index 8776baace..b907d34d0 100644
--- a/src/playlist/plugins/CuePlaylistPlugin.cxx
+++ b/src/playlist/plugins/CuePlaylistPlugin.cxx
@@ -52,9 +52,9 @@ CuePlaylist::NextSong()
 	if (song != nullptr)
 		return song;
 
-	std::string line;
-	while (tis.ReadLine(line)) {
-		parser.Feed(line.c_str());
+	const char *line;
+	while ((line = tis.ReadLine()) != nullptr) {
+		parser.Feed(line);
 		song = parser.Get();
 		if (song != nullptr)
 			return song;
diff --git a/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
index 5dd127add..95cc84289 100644
--- a/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
+++ b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
@@ -39,9 +39,8 @@ public:
 	}
 
 	bool CheckFirstLine() {
-		std::string line;
-		return tis.ReadLine(line) &&
-			strcmp(line.c_str(), "#EXTM3U") == 0;
+		const char *line = tis.ReadLine();
+		return line != nullptr && strcmp(line, "#EXTM3U") == 0;
 	}
 
 	virtual DetachedSong *NextSong() override;
@@ -105,15 +104,13 @@ DetachedSong *
 ExtM3uPlaylist::NextSong()
 {
 	Tag tag;
-	std::string line;
 	const char *line_s;
 
 	do {
-		if (!tis.ReadLine(line))
+		line_s = tis.ReadLine();
+		if (line_s == nullptr)
 			return nullptr;
 
-		line_s = line.c_str();
-
 		if (StringStartsWith(line_s, "#EXTINF:")) {
 			tag = extm3u_parse_tag(line_s + 8);
 			continue;
diff --git a/src/playlist/plugins/M3uPlaylistPlugin.cxx b/src/playlist/plugins/M3uPlaylistPlugin.cxx
index f892f2010..c7f3b5085 100644
--- a/src/playlist/plugins/M3uPlaylistPlugin.cxx
+++ b/src/playlist/plugins/M3uPlaylistPlugin.cxx
@@ -45,14 +45,13 @@ m3u_open_stream(InputStream &is)
 DetachedSong *
 M3uPlaylist::NextSong()
 {
-	std::string line;
 	const char *line_s;
 
 	do {
-		if (!tis.ReadLine(line))
+		line_s = tis.ReadLine();
+		if (line_s == nullptr)
 			return nullptr;
 
-		line_s = line.c_str();
 		line_s = strchug_fast(line_s);
 	} while (line_s[0] == '#' || *line_s == 0);