Add bootNGF and readNGF to Python bindings

src/runtime/python/pypgf.c

@@ -3528,6 +3528,62 @@ pgf_readPGF(PyObject *self, PyObject *args)
 
     return py_pgf;
 }
+
+static PGFObject*
+pgf_bootNGF(PyObject *self, PyObject *args)
+{
+    const char *fpath; // pgf
+    const char *npath; // ngf
+    if (!PyArg_ParseTuple(args, "ss", &fpath, &npath))
+        return NULL;
+
+    PGFObject* py_pgf = (PGFObject*) pgf_PGFType.tp_alloc(&pgf_PGFType, 0);
+
+    // Read the PGF grammar.
+    PgfExn err;
+    py_pgf->pgf = pgf_boot_ngf(fpath, npath, &err);
+    if (err.type == PGF_EXN_SYSTEM_ERROR) {
+        errno = err.code;
+        PyErr_SetFromErrnoWithFilename(PyExc_IOError, npath);
+        Py_DECREF(py_pgf);
+        return NULL;
+    } else if (err.type == PGF_EXN_PGF_ERROR) {
+        PyErr_SetString(PGFError, err.msg);
+        free((char*) err.msg);
+        Py_DECREF(py_pgf);
+        return NULL;
+    }
+
+    return py_pgf;
+}
+
+static PGFObject*
+pgf_readNGF(PyObject *self, PyObject *args)
+{
+    const char *fpath;
+    if (!PyArg_ParseTuple(args, "s", &fpath))
+        return NULL;
+
+    PGFObject* py_pgf = (PGFObject*) pgf_PGFType.tp_alloc(&pgf_PGFType, 0);
+
+    // Read the NGF grammar.
+    PgfExn err;
+    py_pgf->pgf = pgf_read_ngf(fpath, &err);
+    if (err.type == PGF_EXN_SYSTEM_ERROR) {
+        errno = err.code;
+        PyErr_SetFromErrnoWithFilename(PyExc_IOError, fpath);
+        Py_DECREF(py_pgf);
+        return NULL;
+    } else if (err.type == PGF_EXN_PGF_ERROR) {
+        PyErr_SetString(PGFError, err.msg);
+        free((char*) err.msg);
+        Py_DECREF(py_pgf);
+        return NULL;
+    }
+
+    return py_pgf;
+}
+
 #if 0
 static ExprObject*
 pgf_readExpr(PyObject *self, PyObject *args) {
@@ -3592,7 +3648,11 @@ pgf_readType(PyObject *self, PyObject *args) {
 
 static PyMethodDef module_methods[] = {
     {"readPGF",  (void*)pgf_readPGF,  METH_VARARGS,
-     "Reads a PGF file in memory"},
+     "Reads a PGF file into memory"},
+    {"bootNGF",  (void*)pgf_bootNGF,  METH_VARARGS,
+     "Reads a PGF file into memory and stores the unpacked data in an NGF file"},
+    {"readNGF",  (void*)pgf_readNGF,  METH_VARARGS,
+     "Reads an NGF file into memory"},
 /*    {"readExpr", (void*)pgf_readExpr, METH_VARARGS,
      "Parses a string as an abstract tree"},
     {"readType", (void*)pgf_readType, METH_VARARGS,

src/runtime/python/test.py

@@ -6,9 +6,10 @@ import sys
 
 sys.stdout.write("loading...")
 sys.stdout.flush();
-# gr = pgf.readPGF("../../../treebanks/PennTreebank/ParseEngAbs.pgf")
+gr1 = pgf.readPGF("../haskell/tests/basic.pgf")
-gr = pgf.readPGF("../haskell/tests/basic.pgf")
+gr2 = pgf.bootNGF("../haskell/tests/basic.pgf", "./basic.ngf")
-sys.stdout.write("\n")
+gr3 = pgf.readNGF("./basic.ngf")
+sys.stdout.write("done")
 
 # source_lang = gr.languages["ParseEng"]
 # target_lang = gr.languages["ParseBul"]