add vscode syntax

compiler/lexer.ts

@@ -26,27 +26,27 @@ export class Lexer {
                 value += this.current();
                 this.step();
             }
-            switch (value) {
+            const keywords = [
-                case "break":
+                "break",
-                    return this.token("break", pos);
+                "return",
-                case "return":
+                "let",
-                    return this.token("return", pos);
+                "fn",
-                case "let":
+                "loop",
-                    return this.token("let", pos);
+                "if",
-                case "fn":
+                "else",
-                    return this.token("fn", pos);
+                "struct",
-                case "loop":
+                "import",
-                    return this.token("loop", pos);
+                "false",
-                case "if":
+                "true",
-                    return this.token("if", pos);
+                "null",
-                case "else":
+                "or",
-                    return this.token("else", pos);
+                "and",
-                case "struct":
+                "not",
-                    return this.token("struct", pos);
+            ];
-                case "import":
+            if (keywords.includes(value)) {
-                    return this.token("import", pos);
+                return this.token(value, pos);
-                default:
+            } else {
-                    return { ...this.token("ident", pos), identValue: value };
+                return { ...this.token("ident", pos), identValue: value };
             }
         }
         if (this.test(/[1-9]/)) {
@@ -76,11 +76,12 @@ export class Lexer {
                     if (this.done()) {
                         break;
                     }
-                    value += {
+                    value +=
-                        "n": "\n",
+                        {
-                        "t": "\t",
+                            n: "\n",
-                        "0": "\0",
+                            t: "\t",
-                    }[this.current()] ?? this.current();
+                            "0": "\0",
+                        }[this.current()] ?? this.current();
                 } else {
                     value += this.current();
                 }
@@ -142,50 +143,7 @@ export class Lexer {
             }
             return this.token("/", pos);
         }
-        if (this.test("false")) {
+
-            this.step();
-            return this.token("false", pos);
-        }
-        if (this.test("true")) {
-            this.step();
-            return this.token("true", pos);
-        }
-        if (this.test("null")) {
-            this.step();
-            return this.token("null", pos);
-        }
-        if (this.test("or")) {
-            this.step();
-            return this.token("or", pos);
-        }
-        if (this.test("and")) {
-            this.step();
-            return this.token("and", pos);
-        }
-        if (this.test("not")) {
-            this.step();
-            return this.token("not", pos);
-        }
-        if (this.test("loop")) {
-            this.step();
-            return this.token("loop", pos);
-        }
-        if (this.test("break")) {
-            this.step();
-            return this.token("break", pos);
-        }
-        if (this.test("let")) {
-            this.step();
-            return this.token("let", pos);
-        }
-        if (this.test("fn")) {
-            this.step();
-            return this.token("fn", pos);
-        }
-        if (this.test("return")) {
-            this.step();
-            return this.token("return", pos);
-        }
         this.report(`illegal character '${this.current()}'`, pos);
         this.step();
         return this.next();

editors/install_vscode.sh

@@ -0,0 +1,4 @@
+# make sure to run this in repository root directory
+
+rm -r ~/.vscode/extensions/slige
+cp -r vscode ~/.vscode/extensions/slige

editors/install_vscode_oss.sh

@@ -0,0 +1,4 @@
+# make sure to run this in repository root directory
+
+rm -rf ~/.vscode-oss/extensions/slige
+cp -r vscode ~/.vscode-oss/extensions/slige

editors/vscode/.vscode/launch.json

@@ -0,0 +1,17 @@
+// A launch configuration that launches the extension inside a new window
+// Use IntelliSense to learn about possible attributes.
+// Hover to view descriptions of existing attributes.
+// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+{
+	"version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ]
+        }
+    ]
+}

editors/vscode/.vscodeignore

@@ -0,0 +1,4 @@
+.vscode/**
+.vscode-test/**
+.gitignore
+vsc-extension-quickstart.md

editors/vscode/CHANGELOG.md

@@ -0,0 +1,9 @@
+# Change Log
+
+All notable changes to the "slige" extension will be documented in this file.
+
+Check [Keep a Changelog](http://keepachangelog.com/) for recommendations on how to structure this file.
+
+## [Unreleased]
+
+- Initial release

editors/vscode/README.md

@@ -0,0 +1,65 @@
+# slige README
+
+This is the README for your extension "slige". After writing up a brief description, we recommend including the following sections.
+
+## Features
+
+Describe specific features of your extension including screenshots of your extension in action. Image paths are relative to this README file.
+
+For example if there is an image subfolder under your extension project workspace:
+
+\!\[feature X\]\(images/feature-x.png\)
+
+> Tip: Many popular extensions utilize animations. This is an excellent way to show off your extension! We recommend short, focused animations that are easy to follow.
+
+## Requirements
+
+If you have any requirements or dependencies, add a section describing those and how to install and configure them.
+
+## Extension Settings
+
+Include if your extension adds any VS Code settings through the `contributes.configuration` extension point.
+
+For example:
+
+This extension contributes the following settings:
+
+* `myExtension.enable`: Enable/disable this extension.
+* `myExtension.thing`: Set to `blah` to do something.
+
+## Known Issues
+
+Calling out known issues can help limit users opening duplicate issues against your extension.
+
+## Release Notes
+
+Users appreciate release notes as you update your extension.
+
+### 1.0.0
+
+Initial release of ...
+
+### 1.0.1
+
+Fixed issue #.
+
+### 1.1.0
+
+Added features X, Y, and Z.
+
+---
+
+## Working with Markdown
+
+You can author your README using Visual Studio Code. Here are some useful editor keyboard shortcuts:
+
+* Split the editor (`Cmd+\` on macOS or `Ctrl+\` on Windows and Linux).
+* Toggle preview (`Shift+Cmd+V` on macOS or `Shift+Ctrl+V` on Windows and Linux).
+* Press `Ctrl+Space` (Windows, Linux, macOS) to see a list of Markdown snippets.
+
+## For more information
+
+* [Visual Studio Code's Markdown Support](http://code.visualstudio.com/docs/languages/markdown)
+* [Markdown Syntax Reference](https://help.github.com/articles/markdown-basics/)
+
+**Enjoy!**

editors/vscode/language-configuration.json

@@ -0,0 +1,29 @@
+{
+    "comments": {
+        // symbol used for single line comment. Remove this entry if your language does not support line comments
+        "lineComment": "//",
+        // symbols used for start and end a block comment. Remove this entry if your language does not support block comments
+        "blockComment": [ "/*", "*/" ]
+    },
+    // symbols used as brackets
+    "brackets": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"]
+    ],
+    // symbols that are auto closed when typing
+    "autoClosingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""],
+        ["'", "'"]
+    ],
+    // symbols that can be used to surround a selection
+    "surroundingPairs": [
+        ["{", "}"],
+        ["[", "]"],
+        ["(", ")"],
+        ["\"", "\""]
+    ]
+}

editors/vscode/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "slige",
+  "displayName": "slige",
+  "description": "",
+  "version": "0.0.1",
+  "engines": {
+    "vscode": "^1.96.0"
+  },
+  "categories": [
+    "Programming Languages"
+  ],
+  "contributes": {
+    "languages": [{
+      "id": "slige",
+      "aliases": ["Slige", "slige"],
+      "extensions": [".slg"],
+      "configuration": "./language-configuration.json"
+    }],
+    "grammars": [{
+      "language": "slige",
+      "scopeName": "source.slige",
+      "path": "./syntaxes/slige.tmLanguage.json"
+    }]
+  }
+}

editors/vscode/syntaxes/slige.tmLanguage.json

@@ -0,0 +1,99 @@
+{
+	"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+	"name": "Slige",
+	"patterns": [
+		{ "include": "#keywords" },
+		{ "include": "#strings" },
+		{ "include": "#numbers" },
+		{ "include": "#operators" },
+		{ "include": "#punctuation" },
+		{ "include": "#functions" },
+		{ "include": "#idents" }
+	],
+	"repository": {
+		"keywords": {
+			"patterns": [
+				{
+					"name": "keyword.control.slige",
+					"match": "\\b(break|return|let|fn|loop|if|else|struct|import|or|and|not)\\b"
+				},
+				{
+					"name": "constant.language.slige",
+					"match": "\\b(null|false|true)\\b"
+				},
+				{
+					"name": "storage.type.slige",
+					"match": "\\b(int|string|bool)\\b"
+				}
+			]
+		},
+		"strings": {
+			"name": "string.quoted.double.slige",
+			"begin": "\"",
+			"end": "\"",
+			"patterns": [
+				{
+					"name": "constant.character.escape.slige",
+					"match": "\\\\."
+				}
+			]
+		},
+		"numbers": {
+			"patterns": [
+				{
+					"name": "constant.numeric.slige",
+					"match": "\\b0\\b"
+				},
+				{
+					"name": "constant.numeric.slige",
+					"match": "\\b[1-9][0-9]*(\\.[0-9]+)?\\b"
+				},
+				{
+					"name": "constant.numeric.slige",
+					"match": "\\b0x[0-9a-fA-F]+?\\b"
+				},
+				{
+					"name": "constant.numeric.slige",
+					"match": "\\b0b[01]+?\\b"
+				}
+			]
+		},
+		"operators": {
+            "patterns": [
+                {
+                    "match": "\\+|\\-|\\*|\\/|=|(==)|(!=)|<|>|(<=)|(>=)|\\.|:|(\\->)",
+                    "name": "keyword.operator.slige"
+                }
+            ]
+        },
+		"punctuation": {
+			"patterns": [
+				{
+					"match": ";",
+					"name": "punctuation.terminator.statement.slige"
+				},
+				{
+					"match": ",",
+					"name": "punctuation.separator.delimiter.slige"
+				}
+			]
+		},
+		"functions": {
+            "patterns": [
+                {
+                    "match": "(?>\\b[a-zA-Z_][a-zA-Z0-9_]*)\\s*(?=(?>\\:\\:<.*?>)?\\()",
+                    "name": "entity.name.function.slige"
+                }
+            ]
+        },
+		"idents": {
+            "patterns": [
+                {
+                    "match": "\\b[a-zA-Z_][a-zA-Z0-9_]*\\b",
+                    "name": "variable.other.slige"
+                }
+            ]
+        }
+	},
+	"scopeName": "source.slige"
+}

editors/vscode/vsc-extension-quickstart.md

@@ -0,0 +1,29 @@
+# Welcome to your VS Code Extension
+
+## What's in the folder
+
+* This folder contains all of the files necessary for your extension.
+* `package.json` - this is the manifest file in which you declare your language support and define the location of the grammar file that has been copied into your extension.
+* `syntaxes/slige.tmLanguage.json` - this is the Text mate grammar file that is used for tokenization.
+* `language-configuration.json` - this is the language configuration, defining the tokens that are used for comments and brackets.
+
+## Get up and running straight away
+
+* Make sure the language configuration settings in `language-configuration.json` are accurate.
+* Press `F5` to open a new window with your extension loaded.
+* Create a new file with a file name suffix matching your language.
+* Verify that syntax highlighting works and that the language configuration settings are working.
+
+## Make changes
+
+* You can relaunch the extension from the debug toolbar after making changes to the files listed above.
+* You can also reload (`Ctrl+R` or `Cmd+R` on Mac) the VS Code window with your extension to load your changes.
+
+## Add more language features
+
+* To add features such as IntelliSense, hovers and validators check out the VS Code extenders documentation at https://code.visualstudio.com/docs
+
+## Install your extension
+
+* To start using your extension with Visual Studio Code copy it into the `<user home>/.vscode/extensions` folder and restart Code.
+* To share your extension with the world, read on https://code.visualstudio.com/docs about publishing an extension.