feat: refactor code, update dependencies and drop tslint

.editorconfig

@@ -7,3 +7,4 @@ indent_size = 2
 end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
+quote_type = single

.eslintignore

@@ -0,0 +1,4 @@
+.github
+test/resource/**/*
+dist
+types

.eslintrc.js

@@ -0,0 +1,16 @@
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint'],
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:@typescript-eslint/recommended',
+  ],
+  rules: {
+    // TODO: enable rules
+    '@typescript-eslint/interface-name-prefix': ['off'],
+    '@typescript-eslint/explicit-function-return-type': ['off'],
+    '@typescript-eslint/no-inferrable-types': ['off'],
+    '@typescript-eslint/no-explicit-any': ['off'],
+  },
+};

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,6 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-
 ---
 
 **Is your feature request related to a problem? Please describe.**

.prettierignore

@@ -0,0 +1,4 @@
+.github
+test/resource/**/*
+dist
+types

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "trailingComma": "all"
+}

CODE_OF_CONDUCT.md

@@ -14,21 +14,21 @@ appearance, race, religion, or sexual identity and orientation.
 Examples of behavior that contributes to creating a positive environment
 include:
 
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
+- Using welcoming and inclusive language
+- Being respectful of differing viewpoints and experiences
+- Gracefully accepting constructive criticism
+- Focusing on what is best for the community
+- Showing empathy towards other community members
 
 Examples of unacceptable behavior by participants include:
 
-* The use of sexualized language or imagery and unwelcome sexual attention or
+- The use of sexualized language or imagery and unwelcome sexual attention or
   advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
+- Trolling, insulting/derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or electronic
   address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
+- Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
 ## Our Responsibilities

README.md

@@ -12,16 +12,19 @@ Freemarker Parser is a javascript implementation of the Freemarker (https://free
 This project contains **experimental version** of parser ftl to ast tree
 
 ## Installation
+
 You can install `freemarker-parser` using [npm](https://npmjs.com):
 
 ```bash
 $ npm install freemarker-parser --save-dev
 ```
 
 ## Usage
+
 Require `freemarker-parser` inside of your JavaScript:
 
-### Parser 
+### Parser
+
 ```ftl
 <#assign f=1>
 
@@ -31,17 +34,19 @@ Require `freemarker-parser` inside of your JavaScript:
   ${f} < 0
 </#if>
 ```
+
 ```ts
-const freemarker = require("freemarker-parser")
+const freemarker = require('freemarker-parser');
 
-const parser = new freemarker.Parser()
-const data = parser.parse(template)
+const parser = new freemarker.Parser();
+const data = parser.parse(template);
 
-console.log(data.ast)
-console.log(data.tokens)
+console.log(data.ast);
+console.log(data.tokens);
 ```
 
 ### Parser (bracket style)
+
 ```ftl
 [#assign f=1]
 
@@ -51,74 +56,76 @@ console.log(data.tokens)
   ${f} < 0
 [/#if]
 ```
+
 ```ts
-const freemarker = require("freemarker-parser")
+const freemarker = require('freemarker-parser');
 
-const parser = new freemarker.Parser()
+const parser = new freemarker.Parser();
 const data = parser.parse(template, {
   useSquareTags: true,
-  parseLocation : true,
-})
+  parseLocation: true,
+});
 
-console.log(data.ast)
-console.log(data.tokens)
+console.log(data.ast);
+console.log(data.tokens);
 ```
 
 ## Currently supported:
-  - interpolations `${foo}`
-    - methods, i.e. `${avg(3, 5)}`
-  - executing macro
-  - directives https://freemarker.apache.org/docs/ref_directives.html:
-    - [`#attempt`](https://freemarker.apache.org/docs/ref_directive_attempt.html)
-      * `#recover`
-    - [`#assign`](https://freemarker.apache.org/docs/ref_directive_assign.html)
-    - [`#global`](https://freemarker.apache.org/docs/ref_directive_global.html)
-    - [`#local`](https://freemarker.apache.org/docs/ref_directive_local.html)
-    - [`#if`](https://freemarker.apache.org/docs/ref_directive_if.html)
-      * `#elseif`
-      * `#else`
-    - [`#list`](https://freemarker.apache.org/docs/ref_directive_list.html)
-      * `#else`
-      * `#break`
-      * `#continue`
-    - [`#include`](https://freemarker.apache.org/docs/ref_directive_include.html)
-    - [`#import`](https://freemarker.apache.org/docs/ref_directive_import.html)
-    - [`#macro`](https://freemarker.apache.org/docs/ref_directive_macro.html)
-    - [`#switch`](https://freemarker.apache.org/docs/ref_directive_switch.html)
-      * `#case`
-      * `#default`
-      * `#break`
-    - [`#compress`](https://freemarker.apache.org/docs/ref_directive_compress.html)
-    - [`#function`](https://freemarker.apache.org/docs/ref_directive_function.html)
-      * `#return`
-    - [`#parse`](https://freemarker.apache.org/docs/ref_directive_parse.html)
-		- [`#noparse`](https://freemarker.apache.org/docs/ref_directive_noparse.html)
-    - [`#stop`](https://freemarker.apache.org/docs/ref_directive_stop.html)
-    - [`#setting`](https://freemarker.apache.org/docs/ref_directive_setting.html)
-    - [`#lt`](https://freemarker.apache.org/docs/ref_directive_lt.html)
-    - [`#t`](https://freemarker.apache.org/docs/ref_directive_t.html)
-    - [`#nt`](https://freemarker.apache.org/docs/ref_directive_nt.html)
-    - [`#rt`](https://freemarker.apache.org/docs/ref_directive_rt.html)
-    - [`#flush`](https://freemarker.apache.org/docs/ref_directive_flush.html)
-    - [`#escape`](https://freemarker.apache.org/docs/ref_directive_escape.html)
-      * `#noescape`
-    - [`#autoesc`](https://freemarker.apache.org/docs/ref_directive_autoesc.html)
-    - [`#noautoesc`](https://freemarker.apache.org/docs/ref_directive_noautoesc.html)
-    - [`#outputformat`](https://freemarker.apache.org/docs/ref_directive_outputformat.html)
-    - [`#ftl`](https://freemarker.apache.org/docs/ref_directive_ftl.html)
-  - comments `<#-- -->`
-  - built-ins:
-    - `?toUpperCase`
-    - `?toLowerCase`
-    - `?capitalize`
-    - `?length`
-    - `?string("yes", "no")`
-  - support default values, i.e. `${user!"Anonymous"}`
+
+- interpolations `${foo}`
+  - methods, i.e. `${avg(3, 5)}`
+- executing macro
+- directives https://freemarker.apache.org/docs/ref_directives.html:
+  - [`#attempt`](https://freemarker.apache.org/docs/ref_directive_attempt.html)
+    - `#recover`
+  - [`#assign`](https://freemarker.apache.org/docs/ref_directive_assign.html)
+  - [`#global`](https://freemarker.apache.org/docs/ref_directive_global.html)
+  - [`#local`](https://freemarker.apache.org/docs/ref_directive_local.html)
+  - [`#if`](https://freemarker.apache.org/docs/ref_directive_if.html)
+    - `#elseif`
+    - `#else`
+  - [`#list`](https://freemarker.apache.org/docs/ref_directive_list.html)
+    - `#else`
+    - `#break`
+    - `#continue`
+  - [`#include`](https://freemarker.apache.org/docs/ref_directive_include.html)
+  - [`#import`](https://freemarker.apache.org/docs/ref_directive_import.html)
+  - [`#macro`](https://freemarker.apache.org/docs/ref_directive_macro.html)
+  - [`#switch`](https://freemarker.apache.org/docs/ref_directive_switch.html)
+    - `#case`
+    - `#default`
+    - `#break`
+  - [`#compress`](https://freemarker.apache.org/docs/ref_directive_compress.html)
+  - [`#function`](https://freemarker.apache.org/docs/ref_directive_function.html)
+    - `#return`
+  - [`#parse`](https://freemarker.apache.org/docs/ref_directive_parse.html) - [`#noparse`](https://freemarker.apache.org/docs/ref_directive_noparse.html)
+  - [`#stop`](https://freemarker.apache.org/docs/ref_directive_stop.html)
+  - [`#setting`](https://freemarker.apache.org/docs/ref_directive_setting.html)
+  - [`#lt`](https://freemarker.apache.org/docs/ref_directive_lt.html)
+  - [`#t`](https://freemarker.apache.org/docs/ref_directive_t.html)
+  - [`#nt`](https://freemarker.apache.org/docs/ref_directive_nt.html)
+  - [`#rt`](https://freemarker.apache.org/docs/ref_directive_rt.html)
+  - [`#flush`](https://freemarker.apache.org/docs/ref_directive_flush.html)
+  - [`#escape`](https://freemarker.apache.org/docs/ref_directive_escape.html)
+    - `#noescape`
+  - [`#autoesc`](https://freemarker.apache.org/docs/ref_directive_autoesc.html)
+  - [`#noautoesc`](https://freemarker.apache.org/docs/ref_directive_noautoesc.html)
+  - [`#outputformat`](https://freemarker.apache.org/docs/ref_directive_outputformat.html)
+  - [`#ftl`](https://freemarker.apache.org/docs/ref_directive_ftl.html)
+- comments `<#-- -->`
+- built-ins:
+  - `?toUpperCase`
+  - `?toLowerCase`
+  - `?capitalize`
+  - `?length`
+  - `?string("yes", "no")`
+- support default values, i.e. `${user!"Anonymous"}`
 
 ## TODO:
-  - directives:
-    - `#fallback`
-    - `#nested`
-    - `#recurse`
-    - `#visit`
-    - `#items`
+
+- directives:
+  - `#fallback`
+  - `#nested`
+  - `#recurse`
+  - `#visit`
+  - `#items`