some progress

Author: lastlink

src/index.ts

@@ -1,8 +1,31 @@
+import { DbEntity } from "./types";
+
 /**
  * Main Parser class
  */
 export class SqlSimpleParser {
   private dialect: string;
+  private entities: DbEntity[] = [];
+
+  /**
+   * Parsed statements.
+   */
+  private statements: string[] = [];
+
+  /**
+   * Remains of string feed, after last parsed statement.
+   */
+  private remains = "";
+
+  /**
+   * Whether preparser is currently escaped.
+   */
+  private escaped = false;
+
+  /**
+   * Current quote char of preparser.
+   */
+  private quoted = "";
   /**
    * Parser constructor.
    * Default dialect is 'sqlite'.
@@ -22,10 +45,52 @@ export class SqlSimpleParser {
    */
   feed(chunk: string): SqlSimpleParser {
     //
+    let i;
+    let char;
+    let parsed = "";
+    let lastStatementIndex = 0;
+
+    for (i = 0; i < chunk.length; i += 1) {
+      char = chunk[i];
+      parsed += char;
+
+      if (char === "\\") {
+        this.escaped = !this.escaped;
+      } else {
+        if (!this.escaped && SqlSimpleParser.isQuoteChar(char)) {
+          if (this.quoted) {
+            if (this.quoted === char) {
+              this.quoted = "";
+            }
+          } else {
+            this.quoted = char;
+          }
+        } else if (char === ";" && !this.quoted) {
+          const statement =
+            this.remains + parsed.substr(lastStatementIndex, i + 1);
+          this.statements.push(statement);
+          this.remains = "";
+          lastStatementIndex = i + 1;
+        }
+
+        this.escaped = false;
+      }
+    }
+
+    this.remains += parsed.substr(lastStatementIndex);
     return this;
   }
 
+  /**
+   * Checks whether character is a quotation character.
+   *
+   * @param char Character to be evaluated.
+   */
+  private static isQuoteChar(char: string): boolean {
+    return char === '"' || char === "'" || char === "`";
+  }
+
   ToModel(): any {
-    return {}
+    return {};
   }
 }

src/types/index.ts

@@ -0,0 +1,6 @@
+
+
+export interface DbEntity {
+    name: string;
+    
+}

tests/example_sqlite.spec.ts

@@ -18,7 +18,7 @@ describe("Example Sqlite", () => {
         .ToModel();
 
       // write to json file
-      await fs.writeFileSync("sqliteOutput.json", JSON.stringify(models));
+      await fs.writeFileSync("output-sqlite.json", JSON.stringify(models));
     }
     await runSample();
     expect(1).toBeTruthy();