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feat: add initial VS Code extension for ProXPL with syntax highlighting, snippets, and language configuration.
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‎extension/README.md‎

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# ProXPL VS Code Extension
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Official language support for ProXPL.
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## Features
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- **Syntax Highlighting**: Supports keywords, types, operators, and comments.
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- **Snippets**: Quick boilerplate for `main` function and control flow.
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- **Language Configuration**: Smart brackets, auto-closing pairs, and indentation.
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## Installation
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To test locally:
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1. Open this `extension/` folder in VS Code.
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2. Press `F5` to open the Extension Development Host.
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3. Open or create a `.prox` file to see the extension in action.
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## Development
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- Grammar resides in `syntaxes/proxpl.tmLanguage.json`.
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- Snippets are defined in `snippets/proxpl-snippets.json`.
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- General settings are in `language-configuration.json`.

‎extension/language-configuration.json‎

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{
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"comments": {
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"lineComment": "//",
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"blockComment": ["/*", "*/"]
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},
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"brackets": [
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["{", "}"],
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["[", "]"],
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["(", ")"]
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],
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"autoClosingPairs": [
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{ "open": "{", "close": "}" },
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{ "open": "[", "close": "]" },
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{ "open": "(", "close": ")" },
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{ "open": "\"", "close": "\"", "notIn": ["string"] },
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{ "open": "'", "close": "'", "notIn": ["string", "comment"] }
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],
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"surroundingPairs": [
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["{", "}"],
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["[", "]"],
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["(", ")"],
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["\"", "\""],
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["'", "'"]
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],
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"folding": {
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"markers": {
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"start": "^\\s*//\\s*#?region\\b",
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"end": "^\\s*//\\s*#?endregion\\b"
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}
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},
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"wordPattern": "(-?\\d*\\.\\d\\w*)|([^\\`\\~\\!\\@\\#\\%\\^\\&\\*\\(\\)\\-\\=\\+\\[\\{\\]\\}\\\\\\|\\;\\:\\'\\\"\\,\\.\\<\\>\\/\\?\\s]+)",
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"indentationRules": {
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"increaseIndentPattern": "^((?!\\/\\/).)*(\\{[^}\"'`]*|\\([^)\"'`]*|\\[[^\\]\"'`]*)$",
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"decreaseIndentPattern": "^((?!.*?\\/\\*).*\\*/)?\\s*[\\)\\}\\]].*$"
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}
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}

‎extension/package.json‎

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{
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"name": "proxpl",
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"displayName": "ProXPL Language Support",
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"description": "Syntax highlighting and language support for the ProXPL programming language",
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"version": "1.0.0",
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"publisher": "ProgrammerKR",
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"repository": {
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"type": "git",
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"url": "https://github.com/ProgrammerKR/ProXPL"
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},
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"engines": {
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"vscode": "^1.75.0"
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},
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"categories": [
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"Programming Languages"
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],
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"keywords": [
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"proxpl",
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"prox",
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"syntax",
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"highlighting"
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],
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"contributes": {
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"languages": [
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{
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"id": "proxpl",
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"aliases": [
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"ProXPL",
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"prox"
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],
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"extensions": [
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".prox"
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],
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"configuration": "./language-configuration.json"
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}
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],
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"grammars": [
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{
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"language": "proxpl",
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"scopeName": "source.proxpl",
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"path": "./syntaxes/proxpl.tmLanguage.json"
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}
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],
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"snippets": [
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{
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"language": "proxpl",
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"path": "./snippets/proxpl-snippets.json"
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}
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]
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}
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}

‎extension/snippets/proxpl-snippets.json‎

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{
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"Main Function": {
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"prefix": "main",
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"body": [
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"func main() {",
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"\t${1:// main code}",
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"}",
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"",
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"main();"
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],
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"description": "Main function entry point"
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},
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"If-Else block": {
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"prefix": "ifelse",
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"body": [
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"if (${1:condition}) {",
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"\t${2:// code}",
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"} else {",
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"\t${3:// code}",
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"}"
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],
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"description": "If-else block"
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},
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"If block": {
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"prefix": "if",
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"body": [
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"if (${1:condition}) {",
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"\t${2:// code}",
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"}"
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],
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"description": "If block"
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}
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}

‎extension/syntaxes/proxpl.tmLanguage.json‎

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{
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"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
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"name": "ProXPL",
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"scopeName": "source.proxpl",
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"patterns": [
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{
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"include": "#comments"
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},
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{
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"include": "#keywords"
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},
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{
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"include": "#types"
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},
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{
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"include": "#strings"
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},
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{
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"include": "#numbers"
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},
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{
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"include": "#booleans"
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},
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{
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"include": "#operators"
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},
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{
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"include": "#functions"
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}
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],
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"repository": {
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"comments": {
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"patterns": [
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{
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"name": "comment.line.double-slash.proxpl",
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"match": "//.*$"
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},
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{
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"name": "comment.block.proxpl",
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"begin": "/\\*",
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"end": "\\*/"
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}
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]
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},
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"keywords": {
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"patterns": [
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{
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"name": "keyword.control.proxpl",
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"match": "\\b(if|else|while|for|return|import)\\b"
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},
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{
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"name": "keyword.declaration.proxpl",
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"match": "\\b(var|func)\\b"
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}
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]
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},
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"types": {
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"patterns": [
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{
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"name": "storage.type.proxpl",
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"match": "\\b(int|float|string|bool)\\b"
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}
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]
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},
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"strings": {
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"patterns": [
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{
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"name": "string.quoted.double.proxpl",
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"begin": "\"",
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"end": "\"",
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"patterns": [
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{
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"name": "constant.character.escape.proxpl",
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"match": "\\\\."
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}
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]
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}
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]
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},
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"numbers": {
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"patterns": [
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{
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"name": "constant.numeric.proxpl",
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"match": "\\b[0-9]+(\\.[0-9]+)?\\b"
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}
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]
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},
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"booleans": {
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"patterns": [
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{
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"name": "constant.language.proxpl",
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"match": "\\b(true|false)\\b"
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}
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]
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},
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"operators": {
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"patterns": [
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{
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"name": "keyword.operator.proxpl",
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"match": "(\\+|\\-|\\*|\\/|==|!=|>|<|=)"
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}
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]
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},
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"functions": {
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"patterns": [
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{
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"name": "entity.name.function.proxpl",
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"match": "\\b([a-zA-Z_][a-zA-Z0-9_]*)\\s*(?=\\()"
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},
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{
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"name": "support.function.proxpl",
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"match": "\\b(print)\\b"
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}
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]
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}
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}
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}

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