fix: display long TXT records as one string in preview#4190
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raman1236 wants to merge 1 commit intoStackExchange:mainfrom
Open
fix: display long TXT records as one string in preview#4190raman1236 wants to merge 1 commit intoStackExchange:mainfrom
raman1236 wants to merge 1 commit intoStackExchange:mainfrom
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The preview/diff output previously showed long TXT records as 255-octet chunks (e.g., "255chars" "255chars" "rest"), which is confusing to users and violates Opinion StackExchange#8 (TXT records are one long string). Add EncodeSingle() to txtutil that quotes the TXT value without splitting into 255-octet chunks, and use it in ToComparableNoTTL() so that the diff preview shows TXT records as a single string. The zone file output (prettyzone) continues to use EncodeQuoted() with chunking, as that format is required for zone file syntax. Fixes StackExchange#2834
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Description
Fixes the confusing display of long TXT records in the preview/diff output. Previously, TXT records longer than 255 octets were shown as chunked segments:
Now they are displayed as a single string per Opinion #8:
Root Cause
ToComparableNoTTL()(used by the diff engine for both comparison and display) calledtxtutil.EncodeQuoted(), which splits TXT values into 255-octet chunks before quoting.Fix
txtutil.EncodeSingle()that quotes the TXT value as a single string without chunkingToComparableNoTTL()to useEncodeSingle()instead ofEncodeQuoted()prettyzone) continues to useEncodeQuoted()with chunking, as that format is required for DNS wire compatibilityTests
All existing txtutil, diff2, and models tests pass.
Fixes #2834