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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"$match does not match function signature occurs when passing arguments without chaining","articleBody":"**Sample code showing error**\r\nRunning a simple code where a function is applied to the output of a `$match` expression\r\n```\r\nExpressions parse = Expressions.parse(\"$number($match($.a, /(\\\\d+)/).groups[0]))\");\r\nJsonNode inputNode = new ObjectMapper().readTree(\"{\\\"a\\\" : \\\"001\\\"}\");\r\n```\r\n\r\nResults in an error from `$match`\r\n```\r\ncom.api.jsonata4java.expressions.EvaluateException: Argument 1 of function $match does not match function signature\r\njava.lang.RuntimeException: com.api.jsonata4java.expressions.EvaluateException: Argument 1 of function $match does not match function signature\r\n\t...\r\nCaused by: com.api.jsonata4java.expressions.EvaluateRuntimeException: Argument 1 of function $match does not match function signature\r\n\tat app//com.api.jsonata4java.expressions.functions.MatchFunction.invoke(MatchFunction.java:99)\r\n\tat app//com.api.jsonata4java.expressions.ExpressionsVisitor.visitFunction_call(ExpressionsVisitor.java:1823)\r\n\tat \r\n```\r\n\r\n**Native Jsonata Works**\r\nThe same input/output works just in Try Jsonata regardless of jsonata version\r\nhttps://try.jsonata.org/y5CkUaJVY\r\n\r\n**Issue code**\r\nThe inconsistency appears to be in [FunctionUtils](https://github.com/IBM/JSONata4Java/blob/3c9604e8105a589e0244c05bb2a5d674c6842124/src/main/java/com/api/jsonata4java/expressions/utils/FunctionUtils.java#L902) where the function is choosing to use the context despite it not being a valid input and having enough arguments already.\r\n```\r\nif (signature.indexOf(\"-\") \u003e= 0 \u0026\u0026 prc != null \u0026\u0026 prc instanceof PathContext) {\r\n    return true;\r\n}\r\n```\r\n\r\n\r\n**Workaround**\r\nSwapping around the code so the string is actually used as the context will work\r\n`\"$.a.$match(/(\\\\d+)/).groups[0] ~\u003e $number()\"`","author":{"url":"https://github.com/lo-jason","@type":"Person","name":"lo-jason"},"datePublished":"2023-11-27T18:02:54.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/291/JSONata4Java/issues/291"}