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Update the parser module to support augmented assignment.

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Add some test cases.
This commit is contained in:
Fred Drake 2000-08-25 22:42:40 +00:00
parent 6ef68b5b01
commit 28f739aad4
3 changed files with 152 additions and 49 deletions
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36
Modules/parsermodule.c
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@ -1467,10 +1467,34 @@ validate_expr_stmt(node *tree)
&& is_odd(nch)
&& validate_testlist(CHILD(tree, 0)));
for (j = 1; res && (j < nch); j += 2)
res = (validate_equal(CHILD(tree, j))
&& validate_testlist(CHILD(tree, j + 1)));
if (res && nch == 3
&& TYPE(CHILD(tree, 1)) == augassign) {
res = (validate_numnodes(CHILD(tree, 1), 1, "augassign")
&& validate_testlist(CHILD(tree, 2)));
if (res) {
char *s = STR(CHILD(CHILD(tree, 1), 0));
res = (strcmp(s, "+=") == 0
|| strcmp(s, "-=") == 0
|| strcmp(s, "*=") == 0
|| strcmp(s, "/=") == 0
|| strcmp(s, "%=") == 0
|| strcmp(s, "&=") == 0
|| strcmp(s, "|=") == 0
|| strcmp(s, "^=") == 0
|| strcmp(s, "<<=") == 0
|| strcmp(s, ">>=") == 0
|| strcmp(s, "**=") == 0);
if (!res)
err_string("illegal augmmented assignment operator");
}
}
else {
for (j = 1; res && (j < nch); j += 2)
res = (validate_equal(CHILD(tree, j))
&& validate_testlist(CHILD(tree, j + 1)));
}
return (res);
}
@ -2822,9 +2846,11 @@ static PyMethodDef parser_functions[] = {
};
DL_IMPORT(void) initparser(void);
DL_EXPORT(void)
initparser(void)
{
{
PyObject* module;
PyObject* dict;
@ -2834,8 +2860,6 @@ initparser(void)
if (parser_error == 0)
parser_error = PyErr_NewException("parser.ParserError", NULL, NULL);
else
puts("parser module initialized more than once!");
if ((parser_error == 0)
|| (PyDict_SetItemString(dict, "ParserError", parser_error) != 0)) {