dockerfile: fix comment regex to preserve line continuation backslash#2
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maciejpirog merged 1 commit intoopengrep:opengrep/mainfrom Feb 17, 2026
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Change the comment regex from /#.*/ to /#[^\\\n]*(?:\\.[^\\\n]*)*/ so that a trailing backslash on a comment line is NOT consumed as part of the comment token.
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Fix the comment regex in the tree-sitter Dockerfile grammar from
/#.*/to/#[^\\\n]*(?:\\.[^\\\n]*)*/so that backslashes at the end of comment lines are not consumed by the comment token.This allows LABEL continuation lines with interspersed comments to parse correctly:
Part of opengrep/opengrep#586 — fixes Dockerfile parser to correctly handle comments