Merge pull request 'fix/tokenizer-bug' (#1) from fix/tokenizer-bug into main

Reviewed-on: #1

.gitea/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install Core with Dev Dependencies
+        run: |
+          pip install --upgrade pip
+          pip install -e .[dev]
+
+      - name: Run Quality Checks (Linter)
+        run: ruff check src/
+
+      - name: Execute Test Suite
+        run: pytest tests/ -v

.gitea/workflows/publish.yml

@@ -0,0 +1,77 @@
+name: Publish Core
+
+on:
+  push:
+    tags:
+      - "v*" # Fires directly on v0.1.0, v0.2.0 etc.
+
+jobs:
+  # Enforce that tests MUST pass before release can execute
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+      - name: Install and Verify
+        run: |
+          pip install -e .[dev]
+          pytest tests/ -v
+
+  publish:
+    needs: verify # Blocks execution if verify job fails
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install Release Tools
+        run: pip install build twine
+
+      - name: Build Wheel and Source Distribution
+        run: python -m build .
+      - name: Publish Package to PyPI
+        env:
+          TWINE_USERNAME: __token__
+          # Inherits your clean Organization level secret
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+        run: twine upload --skip-existing dist/*
+
+      - name: Build Gitea Release with Assets
+        env:
+          # Pulls your clean Organization level Gitea Token
+          GIT_RELEASE_TOKEN: ${{ secrets.GIT_RELEASE_TOKEN }}
+        run: |
+          TAG=${GITHUB_REF#refs/tags/}
+
+          # Delete existing release block if present
+          EXISTING=$(curl -s -H "Authorization: token $GIT_RELEASE_TOKEN" "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/tags/$TAG")
+          EXISTING_ID=$(echo $EXISTING | python -c "import sys,json; d=json.load(sys.stdin); print(d.get('id',''))" 2>/dev/null || echo "")
+          if [ -n "$EXISTING_ID" ]; then
+            curl -s -X DELETE -H "Authorization: token $GIT_RELEASE_TOKEN" "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/$EXISTING_ID"
+          fi
+
+          # Create fresh production release container
+          RELEASE=$(curl -s -X POST \
+            -H "Authorization: token $GIT_RELEASE_TOKEN" \
+            -H "Content-Type: application/json" \
+            -d "{
+              \"tag_name\": \"$TAG\",
+              \"name\": \"foreignthon $TAG\",
+              \"body\": \"Release version $TAG of foreignthon core compiler engine.\",
+              \"draft\": false,
+              \"prerelease\": false
+            }" "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases")
+
+          RELEASE_ID=$(echo $RELEASE | python -c "import sys,json; print(json.load(sys.stdin)['id'])")
+
+          # Upload wheels directly into Gitea Assets tab
+          for FILE in dist/*; do
+            curl -s -X POST -H "Authorization: token $GIT_RELEASE_TOKEN" -F "attachment=@$FILE" "${{ github.server_url }}/api/v1/repos/${{ github.repository }}/releases/$RELEASE_ID/assets"
+          done

.gitignore

@@ -0,0 +1,44 @@
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+*.egg-info/
+*.egg
+dist/
+build/
+wheels/
+sdist/
+
+# Virtual envs
+.venv/
+venv/
+env/
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+
+# Ruff / linting
+.ruff_cache/
+
+# Mypy
+.mypy_cache/
+
+# Editors
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# ForeignThon compiled output
+*.compiled.py
+
+# Temporary Tests
+tmp/**

LICENSE

@@ -0,0 +1,675 @@
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+
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+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
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+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
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+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
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+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+
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+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+

README.md

@@ -1 +1,56 @@
-# foreignthon
+# ForeignThon
+
+Write Python in any human language.
+
+ForeignThon transpiles `.es.py`, `.ta.py` and more into standard Python — keywords, builtins, exceptions, all translated. Errors come back in your language too.
+
+```python
+# main.es.py
+def saludar(nombre):
+    retornar f"Hola, {nombre}!"
+
+para i en dist(3):
+    escribir(saludar(f"mundo {i}"))
+```
+
+```bash
+fpy run main.es.py
+# Hola, mundo 0!
+# Hola, mundo 1!
+# Hola, mundo 2!
+```
+
+## Install
+
+```bash
+pip install foreignthon      # Core 
+pip install foreignthon-es   # Spanish
+pip install foreignthon-ta   # Tamil
+```
+
+## Quick start
+
+```bash
+fpy new myproject --lang es
+cd myproject
+fpy run src/main.es.py
+```
+
+## Commands
+
+| Command | Description |
+|---|---|
+| `fpy new <name> --lang <code>` | Scaffold a new project |
+| `fpy run <file>` | Transpile and run |
+| `fpy compile <file>` | Transpile to `.compiled.py` |
+| `fpy decompile <file> --lang <code>` | Convert Python back to a language |
+| `fpy check <file>` | Validate without running |
+
+## Documentation
+
+→ [fpy.keshavanand.net](https://foreignthon.keshavanand.net)
+
+## License
+
+GPL v3
+

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "foreignthon"
-version = "0.5.2"
+version = "0.5.4"
 description = "Write Python in any language. Transpiles foreign-language .xx.py files to standard Python."
 license = { text = "GPL v3" }
 requires-python = ">=3.9"

src/foreignthon/__init__.py

@@ -1 +1,7 @@
-__version__ = "0.1.0"
+from importlib.metadata import PackageNotFoundError, version
+
+try:
+    __version__ = version("foreignthon")
+except PackageNotFoundError:
+    # Fallback for local editable development or running scripts directly
+    __version__ = "0.0.0"

src/foreignthon/cli.py

@@ -290,7 +290,9 @@ def check(files: tuple):
 
 @main.command(context_settings=CONTEXT_SETTINGS)
 def langs():
-    """List all installed language packs."""
+    """List all installed language packs with their versions and authors."""
+    import json
+
     from .pack import _discover_packs
 
     packs = _discover_packs()
@@ -301,11 +303,21 @@ def langs():
 
     click.echo("Installed language packs:")
     for code, module in sorted(packs.items()):
-        import json
+        # 1. Dynamically read python package attributes from the discovered module
+        ver = getattr(module, "__version__", "unknown")
+        authors_list = getattr(module, "__authors__", [])
+        authors_str = f" by {', '.join(authors_list)}" if authors_list else ""
+
+        # 2. Safely read the underlying JSON for layout/display names
+        try:
             data = json.loads(module.get_pack_path().read_text(encoding="utf-8"))
             name = data["meta"].get("name", code)
             native = data["meta"].get("native_name", "")
-        click.echo(f"  {code:<6} {name} ({native})")
+        except Exception:
+            name, native = code, ""
+
+        # 3. Print a unified, professional summary line
+        click.echo(f"  {code:<6} {name} ({native}) v{ver}{authors_str}")
   
 @main.command("pack", context_settings=CONTEXT_SETTINGS)
 @click.argument("json_file", type=click.Path(exists=True, path_type=Path))

src/foreignthon/transpiler.py

@@ -3,6 +3,8 @@ from __future__ import annotations
 import io
 import re
 import tokenize
+import unicodedata
+from functools import lru_cache
 from pathlib import Path
 
 from .pack import load_pack
@@ -79,7 +81,103 @@ def _get_slice(source_lines: list[str], sr: int, sc: int, er: int, ec: int) -> s
     return "".join(parts)
 
 
+@lru_cache(maxsize=2048)
+def _is_safe_token(s: str) -> bool:
+    """Return True if the tokenizer produces `s` as a single NAME token.
+
+    Some Unicode scripts (e.g. Tamil) contain combining characters that the
+    tokenize module's regex treats as token boundaries, even though the full
+    string passes str.isidentifier().  Keys that fail this check need a
+    pre-pass string replacement before tokenization.
+    """
+    try:
+        toks = [
+            t for t in tokenize.generate_tokens(io.StringIO(s + "\n").readline)
+            if t.type not in (
+                tokenize.ENDMARKER, tokenize.NEWLINE, tokenize.NL,
+                tokenize.COMMENT, tokenize.INDENT, tokenize.DEDENT,
+            )
+        ]
+        return len(toks) == 1 and toks[0].type == tokenize.NAME and toks[0].string == s
+    except tokenize.TokenError:
+        return False
+
+
+def _is_id_char(c: str) -> bool:
+    """True if `c` can be part of an identifier (letter, mark, digit, or underscore)."""
+    cat = unicodedata.category(c)
+    return cat.startswith(("L", "M", "N")) or c == "_"
+
+
+def _code_region_replace(source: str, unsafe_mapping: dict) -> str:
+    """Replace unsafe keys in source only in code regions (not string literals or comments).
+
+    The tokenizer correctly identifies STRING/COMMENT boundaries even when NAME
+    tokens are mangled by combining characters, so we use it to find protected spans.
+    Identifier-boundary checks prevent partial matches inside longer words.
+    """
+    lines = source.splitlines(keepends=True)
+    cumlen = [0]
+    for line in lines:
+        cumlen.append(cumlen[-1] + len(line))
+
+    protected: list[tuple[int, int]] = []
+    try:
+        for tok in tokenize.generate_tokens(io.StringIO(source).readline):
+            if tok.type in (tokenize.STRING, tokenize.COMMENT):
+                sr, sc = tok.start
+                er, ec = tok.end
+                protected.append((cumlen[sr - 1] + sc, cumlen[er - 1] + ec))
+    except tokenize.TokenError:
+        pass
+
+    sorted_keys = sorted(unsafe_mapping, key=len, reverse=True)
+    result: list[str] = []
+    pos = 0
+    span_idx = 0
+    n = len(source)
+
+    while pos < n:
+        if span_idx < len(protected) and pos >= protected[span_idx][0]:
+            end = protected[span_idx][1]
+            result.append(source[pos:end])
+            pos = end
+            span_idx += 1
+            continue
+
+        code_end = protected[span_idx][0] if span_idx < len(protected) else n
+
+        matched = False
+        for k in sorted_keys:
+            klen = len(k)
+            if pos + klen > code_end:
+                continue
+            if source[pos:pos + klen] != k:
+                continue
+            before_ok = pos == 0 or not _is_id_char(source[pos - 1])
+            after_ok = (pos + klen >= n) or not _is_id_char(source[pos + klen])
+            if before_ok and after_ok:
+                result.append(unsafe_mapping[k])
+                pos += klen
+                matched = True
+                break
+
+        if not matched:
+            result.append(source[pos])
+            pos += 1
+
+    return "".join(result)
+
+
 def _swap_tokens(source: str, mapping: dict) -> str:
+    safe_mapping: dict[str, str] = {}
+    unsafe_mapping: dict[str, str] = {}
+    for k, v in mapping.items():
+        (safe_mapping if _is_safe_token(k) else unsafe_mapping)[k] = v
+
+    if unsafe_mapping:
+        source = _code_region_replace(source, unsafe_mapping)
+
     source_lines = source.splitlines(keepends=True)
     tokens = list(tokenize.generate_tokens(io.StringIO(source).readline))
 
@@ -94,8 +192,8 @@ def _swap_tokens(source: str, mapping: dict) -> str:
         gap = _get_slice(source_lines, prev_end[0], prev_end[1], s_row, s_col)
         result.append(gap)
 
-        if tok_type == tokenize.NAME and tok_string in mapping:
+        if tok_type == tokenize.NAME and tok_string in safe_mapping:
-            result.append(mapping[tok_string])
+            result.append(safe_mapping[tok_string])
         else:
             result.append(tok_string)
 

tests/test_engine.py

@@ -0,0 +1,154 @@
+from __future__ import annotations
+
+import ast
+import json
+import textwrap
+from pathlib import Path
+
+import pytest
+
+from foreignthon.transpiler import _check_shebang, _detect_lang, detranspile, transpile
+
+# ---------------------------------------------------------------------------
+# Setup: Load the local test JSON fixture
+# ---------------------------------------------------------------------------
+
+TEST_PACK_PATH = Path(__file__).parent / "test_pack.json"
+TEST_PACK = json.loads(TEST_PACK_PATH.read_text(encoding="utf-8"))
+
+
+def core_transpile(src: str) -> str:
+    # We pass "es" to match the JSON's meta code, but we feed it the local pack
+    return transpile(textwrap.dedent(src).strip() + "\n", "es", pack=TEST_PACK)
+
+
+def core_detranspile(src: str, postfix: bool = False) -> str:
+    return detranspile(
+        textwrap.dedent(src).strip() + "\n", "es", postfix=postfix, pack=TEST_PACK
+    )
+
+
+def valid(src: str) -> bool:
+    try:
+        ast.parse(src)
+        return True
+    except SyntaxError:
+        return False
+
+
+# ---------------------------------------------------------------------------
+# 1. Core Mechanics: Translation & AST Validity
+# ---------------------------------------------------------------------------
+
+
+def test_engine_basic_translation():
+    # Ensures the engine reads the dictionary and swaps the words
+    src = """
+        para i en dist(5):
+            escribir(i)
+    """
+    out = core_transpile(src)
+    assert "for" in out and "in" in out and "range" in out and "print" in out
+    assert valid(out)
+
+
+# ---------------------------------------------------------------------------
+# 2. Core Mechanics: Safety Boundaries (Strings & Comments)
+# ---------------------------------------------------------------------------
+
+
+def test_engine_preserves_strings():
+    # The engine MUST NOT translate keywords hidden inside strings
+    out = core_transpile('mensaje = "si para mientras def clase"')
+    assert '"si para mientras def clase"' in out
+
+
+def test_engine_preserves_comments():
+    # The engine MUST NOT translate keywords hidden in comments
+    out = core_transpile("# si para mientras\nx = 1")
+    assert "# si para mientras" in out
+
+
+def test_engine_preserves_fstrings():
+    out = core_transpile('escribir(f"valor si={42}")')
+    assert "si" in out  # 'si' survives because it is inside the string
+
+
+# ---------------------------------------------------------------------------
+# 3. Core Mechanics: Postfix Syntax (@@)
+# ---------------------------------------------------------------------------
+
+
+def test_engine_postfix_reversal():
+    # Tests the engine's ability to move the keyword to the front
+    src = """
+        x = 5
+        x > 0 @@si:
+            escribir(x)
+    """
+    out = core_transpile(src)
+    assert "if x > 0:" in out
+    assert "@@" not in out
+    assert valid(out)
+
+
+def test_engine_mixed_prefix_postfix():
+    src = """
+        si x > 0:
+            escribir(x)
+        y < 0 @@si:
+            escribir(y)
+    """
+    out = core_transpile(src)
+    assert out.count("if") == 2
+    assert "@@" not in out
+
+
+# ---------------------------------------------------------------------------
+# 4. Core Mechanics: Decompilation (Round Trip)
+# ---------------------------------------------------------------------------
+
+
+def test_engine_detranspile():
+    # Standard Python should turn back into foreignthon syntax
+    src = """
+        if x > 0:
+            pass
+    """
+    out = core_detranspile(src)
+    assert "si" in out and "pasar" in out
+
+
+def test_engine_roundtrip():
+    # foreignthon -> Python -> foreignthon
+    original = "para i en dist(5):\n    escribir(i)\n"
+    compiled = core_transpile(original)
+    assert valid(compiled)
+
+    back = core_detranspile(compiled)
+    assert "para" in back and "dist" in back
+    # Accept either valid translation for 'print'
+    assert "escribir" in back or "imprimir" in back
+
+
+# ---------------------------------------------------------------------------
+# 5. Core Utilities: Detection & Shebangs
+# ---------------------------------------------------------------------------
+
+
+def test_detect_lang_from_extension():
+    assert _detect_lang(Path("script.es.py")) == "es"
+    assert _detect_lang(Path("script.ta.py")) == "ta"
+
+
+def test_detect_lang_bad_extension():
+    with pytest.raises(ValueError):
+        _detect_lang(Path("script.py"))
+
+
+def test_shebang_override():
+    assert _check_shebang("# foreignthon: fr\nsi x:\n    pasar", "es") == "fr"
+
+
+def test_shebang_default_when_absent():
+    assert _check_shebang("si x:\n    pasar", "es") == "es"

tests/test_integration.py

@@ -1,349 +0,0 @@
-from __future__ import annotations
-
-import ast
-import textwrap
-from pathlib import Path
-
-import pytest
-
-from foreignthon.transpiler import transpile, detranspile
-
-
-def es(src: str) -> str:
-    return transpile(textwrap.dedent(src).strip() + "\n", "es")
-
-
-def de_es(src: str, postfix: bool = False) -> str:
-    return detranspile(textwrap.dedent(src).strip() + "\n", "es", postfix=postfix)
-
-
-def valid(src: str) -> bool:
-    try:
-        ast.parse(src)
-        return True
-    except SyntaxError:
-        return False
-
-
-def runs(src: str) -> dict:
-    """Execute transpiled source and return its globals."""
-    code = compile(src, "<test>", "exec")
-    glob = {}
-    exec(code, glob)
-    return glob
-
-
-# ---------------------------------------------------------------------------
-# Complex class with methods, properties, exceptions
-# ---------------------------------------------------------------------------
-
-def test_class_with_methods():
-    src = """
-        clase Contador:
-            def __init__(self, inicio=0):
-                self.valor = inicio
-
-            def incrementar(self):
-                self.valor += 1
-                retornar self.valor
-
-            def reiniciar(self):
-                self.valor = 0
-
-        c = Contador(10)
-        c.incrementar()
-        c.incrementar()
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["c"].valor == 12
-
-
-# ---------------------------------------------------------------------------
-# Exception handling with custom exception
-# ---------------------------------------------------------------------------
-
-def test_exception_handling():
-    src = """
-        clase MiError(Excepcion):
-            pasar
-
-        def dividir(a, b):
-            si b == 0:
-                lanzar ErrorDeDivisionCero("no dividas por cero")
-            retornar a / b
-
-        intentar:
-            resultado = dividir(10, 2)
-        excepto ErrorDeDivisionCero como e:
-            resultado = -1
-        finalmente:
-            hecho = Verda
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["resultado"] == 5.0
-    assert g["hecho"] is True
-
-
-# ---------------------------------------------------------------------------
-# Generator with yield
-# ---------------------------------------------------------------------------
-
-def test_generator():
-    src = """
-        def cuadrados(n):
-            para i en dist(n):
-                generar i * i
-
-        resultado = lista(cuadrados(5))
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["resultado"] == [0, 1, 4, 9, 16]
-
-
-# ---------------------------------------------------------------------------
-# Lambda and higher order functions
-# ---------------------------------------------------------------------------
-
-def test_lambda_and_builtins():
-    src = """
-        nums = [3, 1, 4, 1, 5, 9, 2, 6]
-        pares = lista(filtrar(lambda x: x % 2 == 0, nums))
-        dobles = lista(map(lambda x: x * 2, nums))
-        total = sum(nums)
-        mayor = max(nums)
-        menor = min(nums)
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["pares"] == [4, 2, 6]
-    assert g["total"] == 31
-    assert g["mayor"] == 9
-    assert g["menor"] == 1
-
-
-# ---------------------------------------------------------------------------
-# Nested functions and closures
-# ---------------------------------------------------------------------------
-
-def test_nested_functions():
-    src = """
-        def hacer_multiplicador(n):
-            def multiplicar(x):
-                retornar x * n
-            retornar multiplicar
-
-        doble = hacer_multiplicador(2)
-        triple = hacer_multiplicador(3)
-        resultado = doble(5) + triple(4)
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["resultado"] == 22
-
-
-# ---------------------------------------------------------------------------
-# While loop with break and continue
-# ---------------------------------------------------------------------------
-
-def test_while_break_continue():
-    src = """
-        resultado = []
-        i = 0
-        mientras i < 20:
-            i += 1
-            si i % 2 == 0:
-                continuar
-            si i > 9:
-                parar
-            resultado.append(i)
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["resultado"] == [1, 3, 5, 7, 9]
-
-
-# ---------------------------------------------------------------------------
-# List/dict/set comprehensions
-# ---------------------------------------------------------------------------
-
-def test_comprehensions():
-    src = """
-        cuadrados = [x*x para x en dist(6)]
-        pares = {x para x en dist(10) si x % 2 == 0}
-        cubo_dict = {x: x**3 para x en dist(5)}
-    """
-    out = es(src)
-    assert valid(out)
-    g = runs(out)
-    assert g["cuadrados"] == [0, 1, 4, 9, 16, 25]
-    assert g["pares"] == {0, 2, 4, 6, 8}
-    assert g["cubo_dict"] == {0: 0, 1: 1, 2: 8, 3: 27, 4: 64}
-
-
-# ---------------------------------------------------------------------------
-# @@ postfix syntax — mixed with prefix
-# ---------------------------------------------------------------------------
-
-def test_postfix_mixed_with_prefix():
-    src = """
-        def clasificar(n):
-            n > 0 @@si:
-                retornar "positivo"
-            n < 0 @@osi:
-                retornar "negativo"
-            sino:
-                retornar "cero"
-
-        resultados = [clasificar(x) para x en [-2, 0, 3]]
-    """
-    out = es(src)
-    assert valid(out)
-    assert "@@" not in out
-    g = runs(out)
-    assert g["resultados"] == ["negativo", "cero", "positivo"]
-
-
-# ---------------------------------------------------------------------------
-# @@ postfix in while and nested ifs
-# ---------------------------------------------------------------------------
-
-def test_postfix_while_nested():
-    src = """
-        acum = 0
-        i = 1
-        i <= 10 @@mientras:
-            i % 2 == 0 @@si:
-                acum += i
-            i += 1
-    """
-    out = es(src)
-    assert valid(out)
-    assert "@@" not in out
-    g = runs(out)
-    assert g["acum"] == 30  # 2+4+6+8+10
-
-
-# ---------------------------------------------------------------------------
-# Strings and comments never touched
-# ---------------------------------------------------------------------------
-
-def test_strings_with_keyword_names():
-    src = """
-        msg = "si para mientras def class"
-        comentario = 'si esto no se traduce'
-        fstr = f"valor si={42}"
-        lista_kw = ["si", "para", "mientras"]
-    """
-    out = es(src)
-    assert '"si para mientras def class"' in out
-    assert "'si esto no se traduce'" in out
-    assert '["si", "para", "mientras"]' in out
-
-
-def test_comment_lines_untouched():
-    src = """
-        # si para mientras escribir dist
-        x = 1  # si esto es un comentario
-        y = 2
-    """
-    out = es(src)
-    assert "# si para mientras escribir dist" in out
-    assert "# si esto es un comentario" in out
-
-
-# ---------------------------------------------------------------------------
-# Spacing — no double blank lines, no spaces around parens
-# ---------------------------------------------------------------------------
-
-def test_no_double_blank_lines():
-    src = """
-        def foo():
-            pasar
-
-        def bar():
-            pasar
-
-        def baz():
-            pasar
-    """
-    out = es(src)
-    assert "\n\n\n" not in out
-
-
-def test_no_spaces_around_parens():
-    src = "escribir(dist(10))\n"
-    out = es(src)
-    assert "print(range(10))" in out
-
-
-# ---------------------------------------------------------------------------
-# Decompile — round trip
-# ---------------------------------------------------------------------------
-
-
-def test_decompile_postfix():
-    src = textwrap.dedent("""
-        def check(x):
-            if x > 0:
-                print(x)
-            elif x == 0:
-                print(0)
-            else:
-                pass
-    """).strip() + "\n"
-
-    out = de_es(src, postfix=False)
-    assert "si" in out and "osi" in out
-    assert "@@" not in out
-
-    out_pf = de_es(src, postfix=True)
-    # postfix_keywords is [] for es so no @@ expected
-    assert "@@" not in out_pf
-
-
-
-def test_decompile_roundtrip_fixed():
-    original = textwrap.dedent("""
-        def sumar(a, b):
-            return a + b
-
-        for i in range(5):
-            print(sumar(i, 1))
-    """).strip() + "\n"
-
-    # decompile to foreign
-    foreign = de_es(original)
-    assert "para" in foreign or "dist" in foreign or "escribir" in foreign or "imprimir" in foreign
-
-    # foreign is NOT valid Python — that's correct
-    # but transpiling it back should give valid Python matching original
-    back = es(foreign)
-    assert valid(back)
-    assert ast.dump(ast.parse(original)) == ast.dump(ast.parse(back))
-
-
-def test_decompile_exceptions_fixed():
-    src = textwrap.dedent("""
-        try:
-            x = 1 / 0
-        except ZeroDivisionError:
-            x = 0
-    """).strip() + "\n"
-
-    out = de_es(src)
-    assert "intentar" in out
-    assert "excepto" in out
-    assert "ErrorDeDivisionCero" in out
-
-    # decompiled output is foreign — transpile back and check
-    back = es(out)
-    assert valid(back)

tests/test_pack.json

@@ -0,0 +1,147 @@
+{
+  "meta": {
+    "name": "Spanish",
+    "native_name": "Español",
+    "code": "es"
+  },
+  "keywords": {
+    "si": "if",
+    "sino": "else",
+    "osi": "elif",
+    "para": "for",
+    "mientras": "while",
+    "def": "def",
+    "clase": "class",
+    "importar": "import",
+    "de": "from",
+    "como": "as",
+    "retornar": "return",
+    "parar": "break",
+    "continuar": "continue",
+    "pasar": "pass",
+    "intentar": "try",
+    "excepto": "except",
+    "finalmente": "finally",
+    "lanzar": "raise",
+    "con": "with",
+    "en": "in",
+    "es": "is",
+    "y": "and",
+    "o": "or",
+    "no": "not",
+    "elim": "del",
+    "global": "global",
+    "nolocal": "nonlocal",
+    "afirmar": "assert",
+    "generar": "yield",
+    "esperar": "await",
+    "asinc": "async",
+    "lambda": "lambda",
+    "Verda": "True",
+    "Falso": "False",
+    "Nada": "None"
+  },
+  "builtins": {
+    "escribir": "print",
+    "imprimir": "print",
+    "entrada": "input",
+    "lon": "len",
+    "dist": "range",
+    "tipo": "type",
+    "ent": "int",
+    "dec": "float",
+    "texto": "str",
+    "lista": "list",
+    "dicc": "dict",
+    "conj": "set",
+    "tupla": "tuple",
+    "bool": "bool",
+    "abrir": "open",
+    "enumerar": "enumerate",
+    "map": "map",
+    "filtrar": "filter",
+    "ordenado": "sorted",
+    "invertido": "reversed",
+    "sum": "sum",
+    "min": "min",
+    "max": "max",
+    "abs": "abs",
+    "redondear": "round",
+    "rnd": "round",
+    "todos": "all",
+    "alguno": "any",
+    "esinstancia": "isinstance",
+    "teneatri": "hasattr",
+    "obtatri": "getattr",
+    "estabatri": "setattr",
+    "repr": "repr",
+    "formatear": "format",
+    "vars": "vars",
+    "sigue": "next",
+    "id": "id",
+    "car": "chr",
+    "hex": "hex",
+    "bin": "bin",
+    "oct": "oct"
+  },
+  "exceptions": {
+    "Excepcion": "Exception",
+    "ExcepcionBase": "BaseException",
+    "ErrorDeValor": "ValueError",
+    "ErrorDeTipo": "TypeError",
+    "ErrorDeClave": "KeyError",
+    "ErrorDeIndice": "IndexError",
+    "ErrorDeAtributo": "AttributeError",
+    "ErrorDeNombre": "NameError",
+    "ErrorDeImportacion": "ImportError",
+    "ErrorDelSistema": "OSError",
+    "ArchivoNoEncontrado": "FileNotFoundError",
+    "ErrorDeEjecucion": "RuntimeError",
+    "DetenerIteracion": "StopIteration",
+    "SalidaDelSistema": "SystemExit",
+    "InterrupcionDeTeclado": "KeyboardInterrupt",
+    "ErrorNoImplementado": "NotImplementedError",
+    "ErrorDeDivisionCero": "ZeroDivisionError",
+    "ErrorDeRecursion": "RecursionError",
+    "ErrorDeSintaxis": "SyntaxError",
+    "ErrorDeAfirmacion": "AssertionError",
+    "ErrorDeDesbordamiento": "OverflowError",
+    "ErrorDeMemoria": "MemoryError",
+    "ErrorDePermiso": "PermissionError",
+    "ErrorDeTiempoAgotado": "TimeoutError"
+  },
+  "error_messages": {
+    "SyntaxError": "Error de sintaxis",
+    "ValueError": "Error de valor",
+    "TypeError": "Error de tipo",
+    "KeyError": "Error de clave",
+    "IndexError": "Error de índice",
+    "AttributeError": "Error de atributo",
+    "NameError": "Error de nombre",
+    "ImportError": "Error de importación",
+    "FileNotFoundError": "Archivo no encontrado",
+    "ZeroDivisionError": "Error división por cero",
+    "RecursionError": "Error de recursión",
+    "RuntimeError": "Error de ejecución",
+    "MemoryError": "Error de memoria",
+    "OverflowError": "Error de desbordamiento",
+    "AssertionError": "Error de afirmación",
+    "NotImplementedError": "Error no implementado",
+    "StopIteration": "Detener iteración",
+    "KeyboardInterrupt": "Interrupción de teclado",
+    "PermissionError": "Error de permiso",
+    "TimeoutError": "Error de tiempo agotado"
+  },
+  "stdlib": {
+    "mate": "math",
+    "sis": "sys",
+    "fechahora": "datetime",
+    "tiempo": "time",
+    "aleatorio": "random",
+    "aleatoria": "random",
+    "colecciones": "collections",
+    "ruta": "pathlib",
+    "er": "re"
+  },
+  "postfix_keywords": []
+}

tests/test_transpiler.py

@@ -1,221 +0,0 @@
-from __future__ import annotations
-
-import ast
-from pathlib import Path
-
-import pytest
-
-from foreignthon.transpiler import (
-    transpile,
-    detranspile,
-    _detect_lang,
-    _check_shebang,
-)
-
-
-def es(source: str) -> str:
-    return transpile(source, "es")
-
-
-def de_es(source: str, postfix: bool = False) -> str:
-    return detranspile(source, "es", postfix=postfix)
-
-
-# ---------------------------------------------------------------------------
-# Keywords — using YOUR current es.json
-# ---------------------------------------------------------------------------
-
-def test_if_else():
-    out = es("si x > 0:\n    escribir(x)\nsino:\n    pasar")
-    assert "if" in out and "else" in out and "pass" in out
-    assert "si" not in out and "sino" not in out
-
-def test_elif():
-    out = es("si x > 0:\n    pasar\nosi x == 0:\n    pasar\nsino:\n    pasar")
-    assert "elif" in out
-
-def test_for_loop():
-    out = es("para i en dist(10):\n    escribir(i)")
-    assert "for" in out and "in" in out and "range" in out
-
-def test_while():
-    out = es("mientras x > 0:\n    x -= 1")
-    assert "while" in out
-
-def test_function_def():
-    # def maps to def in your JSON so both work
-    out = es("def saludar(nombre):\n    retornar nombre")
-    assert "def" in out and "return" in out
-
-def test_class_def():
-    out = es("clase Animal:\n    pasar")
-    assert "class" in out and "pass" in out
-
-def test_booleans_and_none():
-    out = es("x = Verda\ny = Falso\nz = Nada")
-    assert "True" in out and "False" in out and "None" in out
-
-def test_try_except():
-    out = es(
-        "intentar:\n"
-        "    escribir(x)\n"
-        "excepto ErrorDeValor:\n"
-        "    pasar\n"
-        "finalmente:\n"
-        "    pasar"
-    )
-    assert "try" in out and "except" in out and "finally" in out
-    assert "ValueError" in out
-
-def test_import():
-    out = es("importar mate")
-    assert "import" in out and "math" in out
-
-def test_from_import():
-    out = es("de mate importar pi")
-    assert "from" in out and "math" in out and "import" in out
-
-
-# ---------------------------------------------------------------------------
-# Builtins
-# ---------------------------------------------------------------------------
-
-def test_print_escribir():
-    out = es("escribir('hola')")
-    assert "print" in out
-
-def test_print_imprimir():
-    out = es("imprimir('hola')")
-    assert "print" in out
-
-def test_range_dist():
-    out = es("dist(10)")
-    assert "range" in out
-
-def test_len_lon():
-    out = es("lon(lista)")
-    assert "len" in out
-
-def test_int_ent():
-    out = es("ent('5')")
-    assert "int" in out
-
-def test_str_texto():
-    out = es("texto(5)")
-    assert "str" in out
-
-
-# ---------------------------------------------------------------------------
-# Safety — strings and comments must never be touched
-# ---------------------------------------------------------------------------
-
-def test_strings_not_transpiled():
-    out = es('x = "si esto es para mientras"')
-    assert '"si esto es para mientras"' in out
-
-def test_comments_not_transpiled():
-    out = es("# si para mientras\nx = 1")
-    assert "# si para mientras" in out
-
-def test_fstring_not_touched():
-    out = es('escribir(f"si {x} para")')
-    assert "si" in out  # inside string, untouched
-
-
-# ---------------------------------------------------------------------------
-# Output is valid Python
-# ---------------------------------------------------------------------------
-
-def test_output_is_valid_python():
-    out = es(
-        "def sumar(a, b):\n"
-        "    retornar a + b\n\n"
-        "para i en dist(5):\n"
-        "    escribir(sumar(i, 1))\n"
-    )
-    ast.parse(out)
-
-
-# ---------------------------------------------------------------------------
-# No double blank lines after compile
-# ---------------------------------------------------------------------------
-
-def test_no_double_blank_lines():
-    src = "def foo():\n    pasar\n\ndef bar():\n    pasar\n"
-    out = es(src)
-    assert "\n\n\n" not in out
-
-
-# ---------------------------------------------------------------------------
-# Postfix @@ syntax
-# ---------------------------------------------------------------------------
-
-def test_postfix_if():
-    out = es("x = 5\nx > 0 @@si:\n    escribir(x)")
-    assert "if" in out and "@@" not in out
-
-def test_postfix_preserves_indentation():
-    src = (
-        "def comprobar(x):\n"
-        "    x > 0 @@si:\n"
-        "        escribir(x)\n"
-        "    sino:\n"
-        "        pasar\n"
-    )
-    out = es(src)
-    ast.parse(out)
-
-def test_prefix_and_postfix_mixed():
-    src = (
-        "si x > 0:\n"
-        "    escribir(x)\n"
-        "y < 0 @@si:\n"
-        "    escribir(y)\n"
-    )
-    out = es(src)
-    assert out.count("if") == 2 and "@@" not in out
-
-
-# ---------------------------------------------------------------------------
-# Decompile
-# ---------------------------------------------------------------------------
-
-def test_decompile_keywords():
-    out = de_es("if x > 0:\n    pass")
-    assert "si" in out and "pasar" in out
-
-def test_decompile_builtins():
-    out = de_es("print('hello')\nlen([1,2,3])")
-    assert "escribir" in out or "imprimir" in out
-
-def test_decompile_roundtrip():
-    original = "para i en dist(5):\n    escribir(i)\n"
-    compiled = es(original)
-    ast.parse(compiled)
-    back = de_es(compiled)
-    # roundtrip should produce valid code
-    assert "si" in de_es("if x: pass") or "para" in back or True
-
-
-# ---------------------------------------------------------------------------
-# Language detection
-# ---------------------------------------------------------------------------
-
-def test_detect_lang_from_extension():
-    assert _detect_lang(Path("script.es.py")) == "es"
-    assert _detect_lang(Path("script.ta.py")) == "ta"
-
-def test_detect_lang_bad_extension():
-    with pytest.raises(ValueError):
-        _detect_lang(Path("script.py"))
-
-
-# ---------------------------------------------------------------------------
-# Shebang
-# ---------------------------------------------------------------------------
-
-def test_shebang_override():
-    assert _check_shebang("# foreignthon: fr\nsi x:\n    pasar", "es") == "fr"
-
-def test_shebang_default_when_absent():
-    assert _check_shebang("si x:\n    pasar", "es") == "es"