_escape() — langchain Function Reference

Architecture documentation for the _escape() function in xml.py from the langchain codebase.

Function python AgentOrchestration ToolInterface called by 1

Entity Profile

AgentOrchestration→ ToolInterface→ _escape() — langchain Function Reference

Dependency Diagram

graph TD
  2edd0b5c_4b75_78ea_9267_b9495c190f7c["_escape()"]
  b9bf24e2_44fd_b9c4_1e4a_a936f78c742f["xml.py"]
  2edd0b5c_4b75_78ea_9267_b9495c190f7c -->|defined in| b9bf24e2_44fd_b9c4_1e4a_a936f78c742f
  a9d38aeb_60f2_0964_b563_c704ccade390["format_xml()"]
  a9d38aeb_60f2_0964_b563_c704ccade390 -->|calls| 2edd0b5c_4b75_78ea_9267_b9495c190f7c
  style 2edd0b5c_4b75_78ea_9267_b9495c190f7c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/agents/format_scratchpad/xml.py lines 6–18

def _escape(xml: str) -> str:
    """Replace XML tags with custom safe delimiters."""
    replacements = {
        "<tool>": "[[tool]]",
        "</tool>": "[[/tool]]",
        "<tool_input>": "[[tool_input]]",
        "</tool_input>": "[[/tool_input]]",
        "<observation>": "[[observation]]",
        "</observation>": "[[/observation]]",
    }
    for orig, repl in replacements.items():
        xml = xml.replace(orig, repl)
    return xml