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Pattern Playground

Write a pattern in the left editor and a graph in the right editor. The engine evaluates in real-time as you type — matches appear below, or gap analysis explains why nothing matched.

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DSL Quick Reference​

Pattern syntax​

pattern name {
  stage eventVar {
    eventVar.label = "value"        // literal match (stage anchor)
    eventVar.label -> ?variable     // bind to variable
    ?variable.prop = "value"        // follow bound variable (requires ?)
    alice.label = "value"           // literal node name (no ?)
    eventVar.label < 0.5            // value constraint
    ! eventVar.label = "forbidden"  // negated clause (literals only)
  }
  unless between e1 e2 { ... }     // negation window
  unless after e1 { ... }          // open-ended negation
  unless { ... }                   // global negation
  temporal e1 before e2             // explicit Allen constraint
  temporal e1 before e2 gap 3..10  // with metric bound
}

Graph syntax​

graph {
  @timestamp node.label = "value"    // string edge
  @timestamp node.label -> otherNode // node reference
  @timestamp node.label = 42.5      // numeric edge
  @start..end node.label = "value"  // bounded interval
  now = 10                           // set current time
}

See the DSL Reference for the full grammar.