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util.dbuffer: Fix bugs, remove multi-char support (more complex than first thought)

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Character sequences could be split across chunk boundaries. Would require a bunch
of code to make that work reliably.

Only apply front_consumed on first chunk, and adjust buffer_pos accordingly.
This commit is contained in:
Matthew Wild 2021-06-29 14:25:57 +01:00
parent 4e56658eb3
commit e21e4b2b24
2 changed files with 3 additions and 24 deletions
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21
spec/util_dbuffer_spec.lua
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@ -57,27 +57,6 @@ describe("util.dbuffer", function ()
assert.equal(nil, b:read_until("\n"));
assert.equal("and more", b:read_chunk());
end);
it("works with multi-character sequences", function ()
local b = dbuffer.new();
b:write("hello\r\n");
b:write("world");
b:write("\r\n");
b:write("\r\n\r\n");
b:write("stuff");
b:write("more\r\nand more");
assert.equal(nil, b:read_until("."));
assert.equal(nil, b:read_until("%"));
assert.equal("hello\r\n", b:read_until("\r\n"));
assert.equal("world\r\n", b:read_until("\r\n"));
assert.equal("\r\n", b:read_until("\r\n"));
assert.equal("\r\n", b:read_until("\r\n"));
assert.equal("stu", b:read(3));
assert.equal("ffmore\r\n", b:read_until("\r\n"));
assert.equal(nil, b:read_until("\r\n"));
assert.equal("and more", b:read_chunk());
end);
end);
describe(":discard", function ()