[ui] ErrorHandler: analyse error (only used by computation for now)

meshroom/ui/qml/Utils/errorHandler.js

@@ -0,0 +1,32 @@
+.pragma library
+
+/**
+ * Analyse raised errors.
+ * Works only if errors are written with this specific syntax:
+ * [Context] ErrorType: ErrorMessage
+ *
+ * Maybe it would be better to handle errors on Python side but it should be harder to handle Dialog customization
+ */
+function analyseError(error) {
+    const msg = error.toString()
+
+    // The use of [^] is like . but it takes in count every character including \n (works as a double negation)
+    // Group 1: Context
+    // Group 2: ErrorType
+    // Group 3: ErrorMessage
+    const regex = /\[(.*)\]\s(.*):([^]*)/
+    if(!regex.test(msg))
+        return {
+            context: "",
+            type: "",
+            msg: ""
+        }
+
+    const data = regex.exec(msg)
+
+    return {
+        context: data[1],
+        type: data[2],
+        msg: data[3].startsWith("\n") ? data[3].slice(1) : data[3]
+    }
+}