init

parser.ts

@@ -0,0 +1,47 @@
+import { readdirSync, statSync, readFileSync } from "node:fs"
+import { join } from "node:path"
+
+export type TemplateVariable = {
+  path: string
+  type: string
+}
+
+const IF_RE = /<@if\(context\.(.+?)\)>/g
+const VAR_RE = /<@var\(context\.(.+?)(?::(\w+))?\)>/g
+
+function extractFromString(text: string, vars: TemplateVariable[]) {
+  for (const match of text.matchAll(IF_RE)) {
+    vars.push({ path: match[1]!, type: "boolean" })
+  }
+  for (const match of text.matchAll(VAR_RE)) {
+    vars.push({ path: match[1]!, type: match[2] ?? "string" })
+  }
+}
+
+function walkDir(dirPath: string, vars: TemplateVariable[]) {
+  const entries = readdirSync(dirPath).sort()
+  for (const entry of entries) {
+    const fullPath = join(dirPath, entry)
+    extractFromString(entry, vars)
+
+    const stat = statSync(fullPath)
+    if (stat.isDirectory()) {
+      walkDir(fullPath, vars)
+    } else if (stat.isFile()) {
+      const content = readFileSync(fullPath, "utf-8")
+      extractFromString(content, vars)
+    }
+  }
+}
+
+export function parse(dirPath: string): TemplateVariable[] {
+  const vars: TemplateVariable[] = []
+  walkDir(dirPath, vars)
+  const seen = new Set<string>()
+  return vars.filter(v => {
+    const key = `${v.path}:${v.type}`
+    if (seen.has(key)) return false
+    seen.add(key)
+    return true
+  })
+}