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This pull request includes a refinement to the
_escape_node_label
function inlibs/core/langchain_core/runnables/graph_mermaid.py
. The change improves the handling of special characters in Mermaid syntax by expanding the regex pattern to include additional characters.Key change:
libs/core/langchain_core/runnables/graph_mermaid.py
: Updated the_escape_node_label
function to use a more comprehensive regex pattern (mermaid_special_chars
) for escaping special characters in Mermaid syntax. This ensures better compatibility and avoids issues with unsupported characters.Correct the_escape_node_label
method to be compatible with multilingual title names