Feat: add non-page plugin positions

packages/velaux-data/src/plugins/consts.ts

@@ -0,0 +1,50 @@
+import { join } from "lodash";
+
+export type Marker = string;
+export type Position = string
+
+export const Sep = '.'
+// j accept random number of Maker
+const j = (...s: Marker[]): Position => join(s, Sep) as Position;
+
+export const MDefinition: Marker = 'definition';
+
+export const MComponent: Marker = 'component';
+export const MTrait: Marker = 'trait';
+export const MPolicy: Marker = 'policy';
+export const MWorkflowStep: Marker = 'workflow_step';
+
+export const PComponent: Position = j(MDefinition, MComponent);
+export const PTrait: Position = j(MDefinition, MTrait);
+export const PPolicy: Position = j(MDefinition, MPolicy);
+export const PWorkflowStep: Position = j(MDefinition, MWorkflowStep);
+
+// checkPrefix checks if the given position is a prefix of the given position.
+function checkPrefix(position: Position, prefix: string): [boolean, string] {
+  let ok = position.startsWith(prefix);
+  if (!ok) {
+    return [false, ""];
+  }
+  let name = position.slice(prefix.length + 1);
+  return [true, name];
+}
+
+// isComponent checks if a position is a component. return [true, name] if it is.
+export function isComponent(p: Position): [boolean, string] {
+  return checkPrefix(p, PComponent);
+}
+
+// isTrait checks if a position is a trait. return [true, name] if it is.
+export function isTrait(p: Position): [boolean, string] {
+  return checkPrefix(p, PTrait);
+}
+
+// isPolicy checks if a position is a policy. return [true, name] if it is.
+export function isPolicy(p: Position): [boolean, string] {
+  return checkPrefix(p, PPolicy);
+}
+
+// isWorkflowStep checks if a position is a workflow step. return [true, name] if it is.
+export function isWorkflowStep(p: Position): [boolean, string] {
+  return checkPrefix(p, PWorkflowStep);
+}