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Prototype implementation of PL/I
Co-authored-by: Benjamin Wilson <[email protected]> Co-authored-by: Markus Rudolph <[email protected]> Signed-off-by: Mark Sujew <[email protected]>
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‎.eslintrc.json

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{
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"root": true,
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"parser": "@typescript-eslint/parser",
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"parserOptions": {
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"ecmaVersion": 6,
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"sourceType": "module"
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},
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"plugins": [
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"@typescript-eslint"
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],
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"rules": {
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}
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}

‎.github/workflows/ci.yml

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name: Build
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on:
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push:
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branches:
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- main
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pull_request:
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branches:
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- main
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jobs:
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build:
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name: CI (${{ matrix.os }})
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strategy:
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fail-fast: false
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matrix:
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os: [windows-latest, ubuntu-latest]
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runs-on: ${{ matrix.os }}
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timeout-minutes: 20
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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- name: Install pnpm
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uses: pnpm/action-setup@v4
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with:
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version: 9
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- name: Use Node.js
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uses: actions/setup-node@v3
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with:
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node-version: '18'
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cache: 'pnpm'
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- name: Build monorepo
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shell: bash
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run: |
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pnpm install
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pnpm build
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- name: Test monorepo
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if: success() || failure()
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shell: bash
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run: |
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pnpm test

‎.gitignore

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.vscode/*
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!.vscode/extensions.json
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!.vscode/launch.json
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!.vscode/tasks.json
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node_modules/
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dist/
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out/
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**/src/generated
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**/syntaxes/pli.merged.json
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*.tsbuildinfo
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*.vsix

‎.npmrc

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auto-install-peers = true
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lockfile = true
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link-workspace-packages = true

‎.nvmrc

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v20.18.1

‎.vscode/extensions.json

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{
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"recommendations": [
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"langium.langium-vscode",
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"vitest.explorer"
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]
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}

‎.vscode/launch.json

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// A launch configuration that launches the extension inside a new window
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Run Extension",
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"type": "extensionHost",
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"request": "launch",
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"args": [
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"--extensionDevelopmentPath=${workspaceFolder}/packages/vscode-extension",
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"${workspaceFolder}/code_samples"
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],
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"sourceMaps": true,
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"outFiles": [
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"${workspaceFolder}/packages/language/out/**/*.js",
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"${workspaceFolder}/packages/vscode-extension/out/**/*.js"
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]
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},
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{
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"name": "Run Web Extension",
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"type": "extensionHost",
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"debugWebWorkerHost": true,
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"request": "launch",
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"args": [
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"--extensionDevelopmentPath=${workspaceFolder}/packages/vscode-extension",
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"--extensionDevelopmentKind=web",
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"${workspaceFolder}/code_samples"
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],
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"sourceMaps": true,
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"outFiles": [
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"${workspaceFolder}/packages/language/out/**/*.js",
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"${workspaceFolder}/packages/vscode-extension/out/**/*.js"
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]
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},
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{
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"name": "Attach to Language Server",
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"type": "node",
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"port": 6009,
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"request": "attach",
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"skipFiles": [
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"<node_internals>/**"
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],
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"sourceMaps": true,
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"outFiles": [
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"${workspaceFolder}/packages/language/out/**/*.js",
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"${workspaceFolder}/packages/vscode-extension/out/**/*.js",
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"${workspaceFolder}/node_modules/langium"
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]
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},
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{
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"name": "Vitest: Run All",
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"type": "node",
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"request": "launch",
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"skipFiles": [
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"<node_internals>/**",
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],
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"cwd": "${workspaceFolder}",
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"runtimeExecutable": "pnpm",
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"args": [
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"vitest",
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"run",
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"--no-watch"
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],
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"smartStep": true,
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"console": "integratedTerminal"
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},
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{
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"name": "Vitest: Run Selected File",
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"type": "node",
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"request": "launch",
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"autoAttachChildProcesses": true,
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"skipFiles": [
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"<node_internals>/**"
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],
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"runtimeExecutable": "pnpm",
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"args": [
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"vitest",
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"run",
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"${relativeFile}"
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],
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"smartStep": true,
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"console": "integratedTerminal"
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}
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]
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}

‎code_samples/CHART.pli

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*PROCESS X(S),A(S),LINECOUNT(60);
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/*PROCESS X(S),A(S),LINECOUNT(60); */
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/* %M% %I% %D% %T%
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PUNCH ' IDENTIFY **%M%1(''%M%/%I% %D% %T%'')'
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PUNCH ' ENTRY PLISTART '

‎code_samples/MACROS.pli

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*PROCESS MI(':'),NEST,X,AG,A,MAR(2,72,1),GN,NUM,STG;
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/*PROCESS MI(':'),NEST,X,AG,A,MAR(2,72,1),GN,NUM,STG; */
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/*** (CHECK): ***/
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‎code_samples/PLI0002.pli

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/* DECLARE HOST-VARIABLE */
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DCL TIMESTAMP CHAR(26);
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DCL BUF1_CLOB SQL TYPE IS CLOB_FILE;
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DCL BUF1_CLOB; // SQL TYPE IS CLOB_FILE;
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EXEC SQL DECLARE :BUF1_CLOB VARIABLE CCSID EBCDIC;
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DCL I FIXED BIN(31);

‎code_samples/messages/IBM1295IE.pli

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TEST: PROCEDURE OPTIONS(MAIN) REORDER;
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dcl x(-2) fixed bin; //error: IBM1295IE Sole bound specified is less than 1. An upper bound of 1 is assumed.
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END TEST;

‎code_samples/messages/IBM1324IE.pli

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0PACK: PACKAGE EXPORTS(TEST, TEST, TEST); //error: TEST has 3 occurences, needed 1
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0END;

‎code_samples/messages/IBM1388IE.pli

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0a: proc( x ) options(nodescriptor); //error: The NODESCRIPTOR attribute is invalid when any parameters have the NONCONNECTED attribute.
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dcl x(20) fixed bin nonconnected;
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0end a;

‎package.json

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{
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"name": "pli-workspace",
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"description": "Base workspace package",
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"version": "0.0.1",
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"type": "module",
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"private": true,
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"scripts": {
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"watch": "tsc -b tsconfig.build.json --watch",
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"build": "pnpm langium:generate && tsc -b tsconfig.build.json && pnpm --dir packages/vscode-extension build && node ./scripts/merge-tmlanguage.mjs",
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"build:clean": "pnpm clean && pnpm build",
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"lint": "eslint src --ext ts",
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"langium:generate": "pnpm --dir packages/language langium:generate",
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"langium:watch": "pnpm --dir packages/language langium:watch",
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"test": "vitest"
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},
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"devDependencies": {
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"@types/node": "^18.19.70",
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"@typescript-eslint/eslint-plugin": "~7.13.1",
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"@typescript-eslint/parser": "~7.13.1",
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"deepmerge": "^1.5.2",
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"eslint": "~8.57.1",
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"langium": "~3.2.1",
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"shx": "~0.3.4",
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"typescript": "~5.4.5",
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"vitest": "^1.6.0"
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}
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}

‎packages/language/README.md

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# PL1 Language Package

‎packages/language/langium-config.json

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{
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"projectName": "Pl1",
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"languages": [{
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"id": "pli",
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"grammar": "src/pli.langium",
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"fileExtensions": [".pli"],
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"caseInsensitive": true
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}],
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"out": "src/generated"
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}

‎packages/language/package.json

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{
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"name": "pli-language",
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"description": "The language specific package",
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"version": "0.0.1",
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"type": "module",
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"engines": {
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"node": ">=18.0.0"
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},
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"files": [
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"out",
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"src"
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],
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"main": "./out/index.js",
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"module": "./out/index.js",
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"exports": {
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".": {
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"types": "./out/index.d.ts",
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"default": "./out/index.js"
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}
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},
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"typesVersions": {
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"*": {
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".": [
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"out/index"
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]
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}
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},
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"scripts": {
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"clean": "shx rm -fr *.tsbuildinfo out",
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"build": "echo 'No build step'",
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"build:clean": "npm run clean && npm run build",
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"langium:generate": "langium generate",
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"langium:watch": "langium generate --watch"
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},
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"dependencies": {
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"chevrotain": "^11.0.3",
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"langium": "~3.2.0",
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"vscode-languageserver": "~9.0.1",
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"vscode-languageserver-types": "^3.17.5"
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},
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"devDependencies": {
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"langium-cli": "~3.2.0"
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}
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}

‎packages/language/src/documentation.ts/pli-documentation-provider.ts

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/**
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* This program and the accompanying materials are made available under the terms of the
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* Eclipse Public License v2.0 which accompanies this distribution, and is available at
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* https://www.eclipse.org/legal/epl-v20.html
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*
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* SPDX-License-Identifier: EPL-2.0
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*
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* Copyright Contributors to the Zowe Project.
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*
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*/
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import { AstNode, JSDocDocumentationProvider } from 'langium';
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import { isDeclaredVariable, isDoType3Variable, isLabelPrefix, isProcedureStatement, ProcedureStatement } from '../generated/ast';
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export class PliDocumentationProvider extends JSDocDocumentationProvider {
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override getDocumentation(node: AstNode): string | undefined {
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if (isDeclaredVariable(node)) {
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const declaredItem = node.$container;
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let text = '```\n' + `DECLARE ${node.name} `;
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for (const attribute of declaredItem.attributes) {
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text += `${attribute.$cstNode?.text} `;
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}
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text += '\n```';
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return text;
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} else if (isLabelPrefix(node) && isProcedureStatement(node.$container)) {
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return this.getProcedureHoverContent(node.$container);
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} else if (isProcedureStatement(node)) {
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return this.getProcedureHoverContent(node);
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} else if (isDoType3Variable(node)) {
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return '```\nDECLARE' + node.name + '\n```';
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}
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return '';
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}
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private getProcedureHoverContent(node: ProcedureStatement): string | undefined {
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let text = '```\n';
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for (const label of node.labels) {
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text += `${label.name} `;
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}
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text += 'PROCEDURE ';
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if (node.parameters.length > 0) {
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text += '(' + node.parameters.map(e => e.id).join(', ') + ') ';
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}
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if (node.recursive.length > 0) {
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text += 'RECURSIVE ';
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}
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if (node.order.includes('ORDER')) {
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text += 'ORDER ';
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} else if (node.order.includes('REORDER')) {
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text += 'REORDER ';
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}
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if (node.options.length > 0) {
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text += node.options.map(e => e.$cstNode?.text).join(' ');
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}
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if (node.returns.length > 0) {
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text += node.returns.map(e => e.$cstNode?.text).join(' ');
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}
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text += '\n```';
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return text;
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}
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}

‎packages/language/src/index.ts

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/**
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* This program and the accompanying materials are made available under the terms of the
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* Eclipse Public License v2.0 which accompanies this distribution, and is available at
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* https://www.eclipse.org/legal/epl-v20.html
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*
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* SPDX-License-Identifier: EPL-2.0
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*
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* Copyright Contributors to the Zowe Project.
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*
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*/
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export * from './pli-module.js';
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export * from './validation/pli-validator.js';
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export * from './generated/ast.js';
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export * from './generated/grammar.js';
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export * from './generated/module.js';
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export * from './workspace/pli-builtin-functions.js';

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