node *
PyParser_SimpleParseFile(FILE *fp, char *filename, int start)
{
node *n;
perrdetail err;
n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar, start,
(char *)0, (char *)0, &err);
if (n == NULL)
err_input(&err);
return n;
}
int
PyRun_InteractiveOne(FILE *fp, char *filename)
{
PyObject *m, *d, *v, *w;
node *n;
perrdetail err;
char *ps1 = "", *ps2 = "";
v = PySys_GetObject("ps1");
if (v != NULL) {
v = PyObject_Str(v);
if (v == NULL)
PyErr_Clear();
else if (PyString_Check(v))
ps1 = PyString_AsString(v);
}
w = PySys_GetObject("ps2");
if (w != NULL) {
w = PyObject_Str(w);
if (w == NULL)
PyErr_Clear();
else if (PyString_Check(w))
ps2 = PyString_AsString(w);
}
n = PyParser_ParseFile(fp, filename, &_PyParser_Grammar,
Py_single_input, ps1, ps2, &err);
Py_XDECREF(v);
Py_XDECREF(w);
if (n == NULL) {
if (err.error == E_EOF) {
if (err.text)
PyMem_DEL(err.text);
return E_EOF;
}
err_input(&err);
PyErr_Print();
return err.error;
}
m = PyImport_AddModule("__main__");
if (m == NULL)
return -1;
d = PyModule_GetDict(m);
v = run_node(n, filename, d, d);
if (v == NULL) {
PyErr_Print();
return -1;
}
Py_DECREF(v);
if (Py_FlushLine())
PyErr_Clear();
return 0;
}
grammar *
getgrammar(char *filename)
{
FILE *fp;
node *n;
grammar *g0, *g;
perrdetail err;
fp = fopen(filename, "r");
if (fp == NULL) {
perror(filename);
Py_Exit(1);
}
g0 = meta_grammar();
n = PyParser_ParseFile(fp, filename, g0, g0->g_start,
(char *)NULL, (char *)NULL, &err);
fclose(fp);
if (n == NULL) {
fprintf(stderr, "Parsing error %d, line %d.\n",
err.error, err.lineno);
if (err.text != NULL) {
size_t len;
int i;
fprintf(stderr, "%s", err.text);
len = strlen(err.text);
if (len == 0 || err.text[len-1] != '\n')
fprintf(stderr, "\n");
for (i = 0; i < err.offset; i++) {
if (err.text[i] == '\t')
putc('\t', stderr);
else
putc(' ', stderr);
}
fprintf(stderr, "^\n");
PyObject_FREE(err.text);
}
Py_Exit(1);
}
g = pgen(n);
PyNode_Free(n);
if (g == NULL) {
printf("Bad grammar.\n");
Py_Exit(1);
}
return g;
}