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-rw-r--r--util/dbuffer.lua14
1 files changed, 14 insertions, 0 deletions
diff --git a/util/dbuffer.lua b/util/dbuffer.lua
index 54e12266..b148a4a6 100644
--- a/util/dbuffer.lua
+++ b/util/dbuffer.lua
@@ -76,6 +76,20 @@ function dbuffer_methods:read(requested_bytes)
return table.concat(chunks);
end
+-- Read to, and including, the specified character sequence (return nil if not found)
+function dbuffer_methods:read_until(char)
+ local buffer_pos = 0;
+ for i, chunk in self.items:items() do
+ local start = 1 + self.front_consumed;
+ local char_pos = chunk:find(char, start, true);
+ if char_pos then
+ return self:read(buffer_pos + (char_pos - start) + #char);
+ end
+ buffer_pos = buffer_pos + #chunk;
+ end
+ return nil;
+end
+
function dbuffer_methods:discard(requested_bytes)
if requested_bytes > self._length then
return nil;