Data update

Task/Dynamic-variable-names/EMal/dynamic-variable-names.emal

@@ -0,0 +1,37 @@
+^|EMal doesn't support the creation of user-defined variable names.
+ |It can manage symbolic references to existing variables.
+ |It can use Records to dynamically create fields.
+ |^
+Record data ← []
+fun fillData ← void by block
+  for ever
+    ^|we ask for key/value pairs|^
+    text key ← ask(text, "Enter the key or press Enter to quit: ")
+    if key æ Text.EMPTY do break end
+    text value ← ask(text, "Enter the value: ")
+    data[key] ← value ^|here we set the user-defined key field
+                       |on the record data, with the provided value
+                       |^
+  end
+  writeLine()
+end
+^|here we show how symbolic reference works by using var("variableName")|^
+fun dumpData ← void by text recordName
+  writeLine("dumping the fields for the record named '", recordName, "'")
+  Record.keys(var(recordName)).list(<text key|
+    writeLine("  ", key, " ⇒ ", var(recordName)[key]))
+end
+^|
+ |fillData()
+ |dumpData(ask(text, "Enter the name of the variable (must be 'data'): "))
+ |^
+text recordName
+if Runtime.args.length æ 3
+  data[Runtime.args[0]] ← Runtime.args[1]
+  recordName ← Runtime.args[2]
+else
+  fillData()
+end
+dumpData(when(recordName æ Text.EMPTY,
+  ask(text, "Enter the name of the variable (must be 'data'): "),
+  recordName))

Task/Dynamic-variable-names/V-(Vlang)/dynamic-variable-names.v

@@ -0,0 +1,29 @@
+import os
+import strconv
+
+fn main() {
+	mut n, mut value, mut i := 0, 0, 1
+	mut name :=""
+	mut vars := map[string]int{}
+    for n < 1 || n > 5 {
+		n = strconv.atoi(os.input("Integer variables (max 5): ")) or {println("Invalid input!") continue}
+    }
+	for i <= n {
+		println("OK, enter the variable names and their values, below:")
+		println("Variable ${i}")
+        name = os.input_opt("    Name: ") or {println("Invalid input!") exit(1)}
+		for {
+			value = strconv.atoi(os.input("    Value: ")) or {println("Must by a number!") continue}
+			break
+		}
+		vars[name] += value
+        i++
+	}
+	println("\n" + "Enter q to quit")
+	for {
+ 		name = os.input_opt("Which variable do you want to inspect: ") or {println("Invalid input!") exit(1)}
+        if name.to_lower() == "q" {break}
+        if name !in vars {println("Sorry there's no variable of that name, try again!")}
+        else {println("Its value is ${vars[name]}")}
+    }
+}