Refactor, add {file} template (#221)

* Refactor, add {file} template

* Add test for {file} expansion

1 files changed, 54 insertions, 0 deletions

diff --git a/src/util.ts b/src/util.ts
new file mode 100644
index 0000000..f2068e7
--- /dev/null
+++ b/src/util.ts
@@ -0,0 +1,54 @@
+import * as env from "env-var";
+import * as vscode from "vscode";
+
+/**
+ * Check if a specific line is inside a comment block
+ * @param activeEditor the active editor
+ * @param activeLine the line number to be checked
+ */
+export function inComment(activeEditor: vscode.TextEditor, activeLine: number): boolean {
+    if (activeLine === 0) {
+        return false;
+    }
+
+    const txt: string = activeEditor.document.lineAt(activeLine - 1).text.trim();
+    if (!txt.startsWith("///") && !txt.startsWith("*") &&
+        !txt.startsWith("/**") && !txt.startsWith("/*!")) {
+        return false;
+    } else {
+        return true;
+    }
+}
+
+/**
+ * Get the indentation string for the current line (line at the current cursor position)
+ */
+export function getIndentation(editor: vscode.TextEditor = vscode.window.activeTextEditor): string {
+    return editor.document.lineAt(editor.selection.start.line).text.match("^\\s*")[0];
+}
+
+/**
+ * Expand enviroment variables in the string
+ * @param replace string containing environment variables
+ * @returns new string with expanded enviroment variables
+ */
+export function getEnvVars(replace: string): string {
+    let replacement = replace;
+    const regex = /\$\{env\:([\w|\d|_]+)\}/m;
+    let match: RegExpExecArray;
+
+    // tslint:disable-next-line:no-conditional-assignment
+    while ((match = regex.exec(replacement)) !== null) {
+        if (match.index === regex.lastIndex) {
+            regex.lastIndex++;
+        }
+
+        const m = match[1];
+
+        const envVar: string = env.get(m, m).asString();
+
+        replacement = replacement.replace("${env:" + m + "}", envVar);
+    }
+
+    return replacement;
+}