Robert Muir created LUCENE-9557:
-----------------------------------
Summary: gradle regeneration of HTMLCharacterEntities.jflex should
not use python2
Key: LUCENE-9557
URL: https://issues.apache.org/jira/browse/LUCENE-9557
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
Attachments: LUCENE-9557.patch
I thought we had cleaned out the python2, but we got one straggler left.
Currently this is set to run with python2, but it should be using python3.
Python3 will generate the exact same sources that are present in master today.
But if you run it with python2 (as currently configured) it generates a
slightly different grammar:
{noformat}
---
a/lucene/analysis/common/src/java/org/apache/lucene/analysis/charfilter/HTMLCharacterEntities.jflex
+++
b/lucene/analysis/common/src/java/org/apache/lucene/analysis/charfilter/HTMLCharacterEntities.jflex
@@ -60,7 +60,7 @@ CharacterEntities = ( "AElig" | "Aacute" | "Acirc" | "Agrave"
| "Alpha"
| "times" | "trade" | "uArr" | "uacute" | "uarr" | "ucirc"
| "ugrave" | "uml" | "upsih" | "upsilon" | "uuml"
| "weierp" | "xi" | "yacute" | "yen" | "yuml" | "zeta"
- | "zwj" | "zwnj" )
+(' | "zwj" | "zwnj"', ')')
{noformat}
This then cascades and causes HTMLStripCharFilter.java to be regenerated
differently too with a different DFA.
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