tree-sitter-delphi13

Tree-sitter grammar focused on Delphi 13 (RAD Studio 37.0) — what the modern Delphi compiler accepts, nothing more.

Why a fresh project?

This is a focused derivation of Isopod/tree-sitter-pascal (MIT licensed; see LICENSE). The differences in design intent:

| | tree-sitter-pascal (upstream) | tree-sitter-delphi13 (this) | |---|---|---| | Target | Pascal family (Delphi, FreePascal, FPC variants) | Delphi 13 only | | Grammar surface | Many enable_if(fpc, ...) branches | Single Delphi-13 surface | | Inline asm | Parsed structurally | Treated as opaque (comment-like) | | Preprocessor blocks | Token-level {$IFDEF} | External scanner consumes whole {$IF*}...{$END*} blocks | | Non-Pascal corpus files | Counted as failures | Filtered by harness (binary DFM, JCL templates, JEDI interpreter fragments, etc.) | | Companion | — | Pairs with separate tree-sitter-dfm for form files |

Status

| Component | State | |-----------|-------| | Grammar | Delphi-13-focused, all proven fixes from upstream forked in | | External scanner | (planned — IFDEF blocks + ^X char literal disambiguation) | | Preprocessor | (planned as separate delphi13-preprocessor library, for {$I X.inc} expansion) | | Harness | Day-1 filtering for non-Delphi files | | Corpus | Curated Delphi-13 only (modern projects + RAD Studio 13 RTL/VCL) |

Build

npm install --ignore-scripts
.\node_modules\.bin\tree-sitter generate
node "C:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild

Run baseline

pwsh -File tools\run-baseline.ps1

Credits

• Philip Zander — original tree-sitter-pascal grammar
• Benjamin Gray (Isopod) — current maintainer