feat: enums giving additional informations to token

src/enums/LineCtx.ts

@@ -0,0 +1,13 @@
+export enum LineCtx {
+    NONE,
+    HR_LINE,
+    HEADING,
+    BLOCKQUOTE,
+    CODEBLOCK,
+    LIST_HEAD,
+    LIST,
+    FOOTNOTE_HEAD,
+    FOOTNOTE,
+    TABLE,
+    TABLE_DELIM
+}

src/enums/TokenRole.ts

@@ -0,0 +1,19 @@
+/**
+ * Indicate that the token is recognized as a part of
+ * tokens sequence, or a stand-alone one.
+ */
+export enum TokenRole {
+    /** Opening delimiter */
+    OPEN,
+    /**
+     * Act as a metadata stored in a token sequence.
+     * In this case, it's only used as a highlight color tag
+     */
+    TAG,
+    /** Content of a token sequence */
+    CONTENT,
+    /** Closing delimiter */
+    CLOSE,
+    /** Stand-alone token that isn't a part of any sequence */
+    SINGLE
+}

src/enums/TokenStatus.ts

@@ -0,0 +1,23 @@
+/**
+ * To state whether the token is active or not.
+ * Only that stated as `ACTIVE` can pass through the
+ * rendering phase, whereas `INACTIVE` is used as a
+ * cut-through for reparsing when necessary.
+ * Note that, `INACTIVE` is only used by insertion,
+ * spoiler, sup, and sub.
+ */
+export enum TokenStatus {
+    /** 
+     * The token is being processed through the parser queue.
+     * After that, its status switched to either `ACTIVE` or `INACTIVE`.
+     */
+    PENDING,
+    /** The token is ready for the rendering phase. */
+    ACTIVE,
+    /**
+     * The token stated as `INACTIVE` by default doesn't
+     * go through rendering phase. Often used to stating
+     * token sequence that doesn't have closing delimiter.
+     */
+    INACTIVE
+}

src/enums/index.ts

@@ -1 +1,4 @@
-export * from "./DelimType";
+export * from "./LineCtx";
+export * from "./TokenRole";
+export * from "./TokenStatus";
+export * from "./Format";