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change the API to allow different grammar revisions

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This commit is contained in:
krangelov
2021-09-06 15:49:39 +02:00
parent b7cddf206b
commit 9cea2cc70e
14 changed files with 298 additions and 226 deletions
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23
src/runtime/python/pypgf.c
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@@ -15,7 +15,8 @@ static PyObject *PGFError;
typedef struct {
PyObject_HEAD
PgfPGF *pgf;
PgfDB *db;
PgfRevision revision;
} PGFObject;
// typedef struct IterObject {
@@ -1719,7 +1720,7 @@ typedef struct {
static void
PGF_dealloc(PGFObject* self)
{
pgf_free(self->pgf);
pgf_free(self->db);
Py_TYPE(self)->tp_free((PyObject*)self);
}
@@ -1767,7 +1768,7 @@ PGF_repr(PGFObject *self)
static PyObject*
PGF_getAbstractName(PGFObject *self, void *closure)
{
PgfText* txt = pgf_abstract_name(self->pgf);
PgfText* txt = pgf_abstract_name(self->db, self->revision);
PyObject *name = PyString_FromStringAndSize(txt->text, txt->size);
free(txt);
return name;
@@ -1866,7 +1867,7 @@ PGF_getCategories(PGFObject *self, void *closure)
PgfExn err;
PyPGFClosure clo = { { pgf_collect_cats }, self, categories };
pgf_iter_categories(self->pgf, &clo.fn, &err);
pgf_iter_categories(self->db, self->revision, &clo.fn, &err);
if (err.type != PGF_EXN_NONE) {
Py_DECREF(categories);
return NULL;
@@ -1878,7 +1879,7 @@ PGF_getCategories(PGFObject *self, void *closure)
static TypeObject *
PGF_getStartCat(PGFObject *self, void *closure)
{
PgfType type = pgf_start_cat(self->pgf, &unmarshaller);
PgfType type = pgf_start_cat(self->db, self->revision, &unmarshaller);
if (type == 0) {
PyErr_SetString(PGFError, "The start category cannot be found");
return NULL;
@@ -1915,7 +1916,7 @@ PGF_getFunctions(PGFObject *self, void *closure)
PgfExn err;
PyPGFClosure clo = { { pgf_collect_funs }, self, functions };
pgf_iter_functions(self->pgf, &clo.fn, &err);
pgf_iter_functions(self->db, self->revision, &clo.fn, &err);
if (err.type != PGF_EXN_NONE) {
Py_DECREF(functions);
return NULL;
@@ -1943,7 +1944,7 @@ PGF_functionsByCat(PGFObject* self, PyObject *args)
PgfExn err;
PyPGFClosure clo = { { pgf_collect_funs }, self, functions };
pgf_iter_functions_by_cat(self->pgf, catname, &clo.fn, &err);
pgf_iter_functions_by_cat(self->db, self->revision, catname, &clo.fn, &err);
if (err.type != PGF_EXN_NONE) {
Py_DECREF(functions);
return NULL;
@@ -1964,7 +1965,7 @@ PGF_functionType(PGFObject *self, PyObject *args)
memcpy(funname->text, s, size+1);
funname->size = size;
PgfType type = pgf_function_type(self->pgf, funname, &unmarshaller);
PgfType type = pgf_function_type(self->db, self->revision, funname, &unmarshaller);
if (type == 0) {
PyErr_Format(PyExc_KeyError, "Function '%s' is not defined", funname->text);
return NULL;
@@ -2385,7 +2386,7 @@ pgf_readPGF(PyObject *self, PyObject *args)
// Read the PGF grammar.
PgfExn err;
py_pgf->pgf = pgf_read_pgf(fpath, &err);
py_pgf->db = pgf_read_pgf(fpath, &py_pgf->revision, &err);
if (err.type == PGF_EXN_SYSTEM_ERROR) {
errno = err.code;
PyErr_SetFromErrnoWithFilename(PyExc_IOError, fpath);
@@ -2413,7 +2414,7 @@ pgf_bootNGF(PyObject *self, PyObject *args)
// Read the PGF grammar.
PgfExn err;
py_pgf->pgf = pgf_boot_ngf(fpath, npath, &err);
py_pgf->db = pgf_boot_ngf(fpath, npath, &py_pgf->revision, &err);
if (err.type == PGF_EXN_SYSTEM_ERROR) {
errno = err.code;
PyErr_SetFromErrnoWithFilename(PyExc_IOError, npath);
@@ -2440,7 +2441,7 @@ pgf_readNGF(PyObject *self, PyObject *args)
// Read the NGF grammar.
PgfExn err;
py_pgf->pgf = pgf_read_ngf(fpath, &err);
py_pgf->db = pgf_read_ngf(fpath, &py_pgf->revision, &err);
if (err.type == PGF_EXN_SYSTEM_ERROR) {
errno = err.code;
PyErr_SetFromErrnoWithFilename(PyExc_IOError, fpath);