thirsty-lang 0.2.2

A governance-first programming language family

THIRSTY-LANG

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A 6-tier governance-first programming language family.
The water metaphor is not a gimmick. Every keyword maps to a structural security effect. Default-DENY at every gate. 14 built-in module namespaces. A symbolic constraint grammar that compiles to binary frames with CRC32 + SHA-256 integrity. A mutation analyzer that can block your code from promoting if it detects cross-plane data leakage.

This is not a joke. This is Thirsty-Lang.

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Quick Start — You Have 30 Seconds

pip install thirsty-lang

Write a file called hello.thirsty:

module hello: core

glass greet(name) {
    return "hello, " + name + "!"
}

drink main = greet("thirsty world")
pour main

Run it:

thirsty run hello.thirsty
# hello, thirsty world!

That's the welcoming committee. Now read the rest. It gets significantly weirder.

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The 6-Tier Stack — What the Hell Did You Just Install?

🔵 Tier 1: Thirsty-Lang (Core)

A syntax that reads like a hydration app had a baby with a type checker.

module factorial: core

glass fact(n: Int) -> Int {
    thirst (n <= 1) { quench 1 }
    quench n * fact(n - 1)
}

What actually exists (not aspirational, not vapor):

• 35+ token types — DRINK, POUR, SIP, THIRST, QUENCH, REFILL, TIMES, GLASS, RESERVOIR, WELL, FLOOD, DRIP, EVAPORATE, CONDENSE, FOUNTAIN, RETURN, PARCHED, QUENCHED, EMPTY, MUT, IN, CASCADE, THIS, NEW, PUBLIC, PRIVATE, SPILLAGE, CLEANUP, ERROR, THROW, FINALLY... the lexer tokenizes all of them.
• Full lexer — 25 methods, handles strings, numbers, identifiers, operators, multi-character tokens, comments, newlines
• Full parser — 59 methods, recursive descent with error recovery and fuzzy match suggestions
• Full interpreter — 58 methods, supports functions, variables, if/else guards, while/for loops, pipe operator (|>), imports, classes, spillage/cascade, tail call optimization, optimization levels 0-3, debug mode
• Full type checker — scope resolution, type inference, builtin registration, edit-distance error suggestions (you type poour and it says "did you mean pour?")
• Formatter — thirsty fmt reformats your code with consistent rules
• JS transpilation — thirsty build hello.thirsty --target js produces valid JavaScript
• 11 CLI subcommands — run, repl, fmt, new, build, govern, add, audit, lock, doctor, lsp, docs. All of them work.

🟣 Tier 2: Thirst of Gods

Object-oriented programming, async (cascade/await), and structured error handling (spillage/cleanup/throw) — all validated by a divine contract validator.

fountain Counter {
    drink count: Int = 0
    glass increment() {
        mut this.count = this.count + 1
    }
}

What exists: The validator (to_gods()) checks your code for:

• Must fountain init method? ✓
• Every cascade has an error-aware consumer? ✓
• Spillage blocks have at least one handler? ✓
• Cleanup resources declared? ✓

If your code doesn't satisfy the divine contract, it tells you. This is not decorative.

🟢 Tier 3: T.A.R.L. — Thirsty's Active Resistance Language

A policy-as-code engine. Default-DENY. Always.

policy access_control:
    when user.role == "admin"    -> ALLOW
    when user.ip in blacklist    -> DENY
    when hour < 6 or hour > 22   -> ESCALATE
    default                       -> DENY

What exists: TarlEngine, TarlPolicy, TarlRule, TarlVerdict (ALLOW/DENY/ESCALATE), PolicyParser, SafeExpr, LRU-cached evaluation, adaptive policy ordering. Import it from Python and evaluate policies programmatically. First-match-wins semantics. Default-DENY when no rule matches.

🟡 Tier 4: Shadow Thirst

Mutation analysis and invariant verification. Code cannot promote unless it passes.

shadow analyze_memory:
    invariant: deterministic
    canonical: converge
promote

What exists: 6 analyzers that actually run:

1. Plane Isolation — detects cross-plane data flow (data leaking between security domains)
2. Determinism — verifies your code produces the same output for the same input
3. Resource Estimation — estimates memory and time bounds
4. Purity Spring — checks if functions have side effects
5. Memory Evaporation — detects memory leaks in your Thirsty-Lang code
6. Canonical Convergence — verifies that your program's behavior converges to a canonical form

Return codes: PromotionEngine issues a verdict — if critical analyzers fail, promotion is blocked. Your code cannot graduate to production.

🟠 Tier 5: TSCG — Thirsty Symbolic Constraint Grammar

A symbolic security expression language with 9 core symbols, combined via pipeline, AND, and OR operators, SHA-256 canonicalized into a deterministic form.

COG -> DNT ^ SHD -> CAP

9 symbols that exist: COG (Cognition), DNT (Do Not Track), SHD (Shield), INV (Invariant), CAP (Capability), QRM (Quorum), COM (Communication), ANC (Anchor), RFX (Reflexive).

Operators: pipeline (->), AND-combine (^), OR-combine (||). Parsed by TSCGParser, canonicalized by canonical_form() into a SHA-256 digest. validate_symbols() checks symbol compatibility.

🔴 Tier 6: TSCG-B — Binary Frame Protocol

The same symbolic constraints, now as binary frames with integrity guarantees.

┌────────┬──────────┬────────────┬──────────┬─────────────┐
│ MAGIC  │ VERSION  │  FLAGS     │  PAYLOAD │   SHA-256   │
│ TSGB   │  0x01    │  0x00      │  ...     │  32 bytes   │
│ 4 bytes│ 1 byte   │  1 byte    │  var     │  32 bytes   │
└────────┴──────────┴────────────┴──────────┴─────────────┘

What exists: TSCGBFrame.create(), StreamDecoder (auto-resynchronizing for multi-frame transport), CRC32 integrity checks per frame, SHA-256 payload verification. Encode your TSCG constraints into binary, throw them over a wire, decode on the other side, get back your symbolic expression. Frame fragmentation support with EOF flag.

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Stdlib That's Actually Written

The standard library is 14 namespaces, all implemented (not stubs, not stubs-that-throw-NotImplementedError — actual code):

Namespace	What it does
thirst::time	now(), epoch_ms(), sleep(seconds)
thirst::crypto	sha256(), sign(), hmac(), random_bytes(), uuid4()
thirst::reservoir	size(), push(), pop(), get(), flood()
thirst::fs	read_file(), write_file(), exists(), list_dir(), mkdir(), remove()
thirst::path	join(), dirname(), basename(), ext(), absolute(), relative()
thirst::json	parse(), dump()
thirst::dict	get(), set()
thirst::http	get(), post(), put(), delete()
thirst::env	get(), set(), all()
thirst::sys	run(), exit(), args(), pid()
thirst::log	info(), warn(), error(), debug()
thirst::test	assert_eq(), assert_ne(), assert_true(), assert_raises(), describe(), it()
thirst::collections	map(), filter(), reduce(), sort(), unique(), flatten(), zip()
thirst::net	tcp_connect(), tcp_listen(), udp_send()
thirst::sqldb	connect(), query(), execute(), close()

You can write production Thirsty-Lang programs that open TCP sockets, compute SHA-256 hashes, query databases, and assert their own correctness. This is not a toy.

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CLI That's Actually Shipped

thirsty <command> [options]

run      → Execute .thirsty files
repl     → Interactive REPL with .clear / .exit / state persistence
fmt      → Format .thirsty source files
new      → Scaffold a project with directory structure
build    → Build (JS transpilation, etc.)
govern   → Governance operations / divine contract validation
add      → Add a package dependency
audit    → Audit dependency integrity
lock     → Generate lockfile for reproducible builds
doctor   → Health check your project structure
lsp      → Start Language Server Protocol endpoint
docs     → Generate API documentation

Installable via PyPI: pip install thirsty-lang. Then thirsty --help shows you all of them. thirsty --version shows you Thirsty-Lang 0.1.4.

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Formal Grammar

A complete BNF grammar is documented at docs/GRAMMAR.md. Formal, recursive-descent parseable, covering all 6 tiers and all 30+ token types. Not aspirational — written, committed, pushed.

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The Architecture That Makes This Not Insane

┌─────────────────────────────────────────────────────────┐
│                    Tier 6: TSCG-B                       │
│           Binary Frame Protocol (CRC32+SHA256)          │
├─────────────────────────────────────────────────────────┤
│                    Tier 5: TSCG                         │
│      Symbolic Constraint Grammar (9 symbols, SHA-256)   │
├─────────────────────────────────────────────────────────┤
│                    Tier 4: Shadow Thirst                │
│      Mutation Analysis — 6 analyzers, PromotionEngine   │
├─────────────────────────────────────────────────────────┤
│                    Tier 3: T.A.R.L.                     │
│       Policy-as-Code — TarlVerdict (ALLOW/DENY/ESCALATE)│
├─────────────────────────────────────────────────────────┤
│                    Tier 2: Thirst of Gods               │
│    Divine Contract Validation — OOP, Async, Error Hndl. │
├─────────────────────────────────────────────────────────┤
│                    Tier 1: Thirsty-Lang                 │
│  Core Language — Lexer, Parser, Checker, Interpreter,   │
│  Optimizer, Formatter, JS Transpiler, 14 stdlib modules │
└─────────────────────────────────────────────────────────┘

Default-DENY at every boundary. Data cannot flow upward without clearing the tier below. That's not a marketing slogan — it's how the architecture is built.

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Verification

121 tests pass. Every time. Before every commit. No regressions.

$ python -m pytest tests/ -q
........................................................................ [ 59%]
.................................................                        [100%]
121 passed in 0.13s

The test suite covers: lexer, parser, checker, interpreter, formatter, module system, REPL, JS transpilation, T.A.R.L. policies, Shadow Thirst analyzers, TSCG parsing/canonicalization, TSCG-B frame encoding/decoding, Thirst of Gods divine contract validation, CLI commands, and end-to-end program execution.

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Install

Thirsty-Lang is now available on PyPI.

For pinned installs:

pip install thirsty-lang==0.1.4

For upgrade installs:

pip install --upgrade thirsty-lang

From source:

git clone https://github.com/IAmSoThirsty/Thirstys-Projects-Thirsty-Lang-UTF.git
cd Thirstys-Projects-Thirsty-Lang-UTF
pip install -e .

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License

Copyright 2026 Thirsty's Projects LLC — Apache 2.0

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