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Follow #433 #434 to avoid SystemStackError #436

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Merged
azumakuniyuki merged 3 commits into from
Jun 8, 2026
+266 −5
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Follow #433 #434 to avoid SystemStackError #436

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0b4a1b5
Update the release notes #433 #434
azumakuniyuki Jun 7, 2026
a007f6c
Follow #434 Sisimai::RFC2045.haircut should return ["",""] when lower…
azumakuniyuki Jun 8, 2026
e3e751b
#433 #434 Test cases for commit a007f6c6
azumakuniyuki Jun 8, 2026
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Follow #434 Sisimai::RFC2045.haircut should return ["",""] when lower… 
…chunk is nil to avoid SystemStackError
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@azumakuniyuki
azumakuniyuki committed Jun 8, 2026
commit a007f6c6ecbc4367661750557360533c966be557
3 changes: 1 addition & 2 deletions lib/sisimai/rfc2045.rb
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Expand Up @@ -146,9 +146,8 @@ def haircut(block = '', heads = false)
return nil if block.empty?

(upperchunk, lowerchunk) = block.split("\n\n", 2)
return ['', ''] if upperchunk.nil? || upperchunk.empty?
return ['', ''] if upperchunk.nil? || upperchunk.empty? || lowerchunk.nil?
return ['', ''] if upperchunk.index('Content-Type').nil?
lowerchunk = '' if lowerchunk.nil?

headerpart = ['', ''] # ["text/plain; charset=iso-2022-jp; ...", "quoted-printable"]
multipart1 = [] # [headerpart, "body"]
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