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-rw-r--r--Python/formatter_unicode.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/Python/formatter_unicode.c b/Python/formatter_unicode.c
index ef01511..12b880d 100644
--- a/Python/formatter_unicode.c
+++ b/Python/formatter_unicode.c
@@ -561,13 +561,14 @@ fill_number(PyObject *out, Py_ssize_t pos, const NumberFieldWidths *spec,
return -1;
if (toupper) {
Py_ssize_t t;
- /* XXX if the upper-case prefix is wider than the target
- buffer, the caller should have allocated a wider string,
- but currently doesn't. */
- for (t = 0; t < spec->n_prefix; ++t)
- PyUnicode_WRITE(kind, data, pos + t,
- Py_UNICODE_TOUPPER(
- PyUnicode_READ(kind, data, pos + t)));
+ for (t = 0; t < spec->n_prefix; t++) {
+ Py_UCS4 c = PyUnicode_READ(kind, data, pos + t);
+ if (c > 127) {
+ PyErr_SetString(PyExc_SystemError, "prefix not ASCII");
+ return -1;
+ }
+ PyUnicode_WRITE(kind, data, pos + t, Py_TOUPPER(c));
+ }
}
pos += spec->n_prefix;
}
@@ -607,10 +608,14 @@ fill_number(PyObject *out, Py_ssize_t pos, const NumberFieldWidths *spec,
}
if (toupper) {
Py_ssize_t t;
- for (t = 0; t < spec->n_grouped_digits; ++t)
- PyUnicode_WRITE(kind, data, pos + t,
- Py_UNICODE_TOUPPER(
- PyUnicode_READ(kind, data, pos + t)));
+ for (t = 0; t < spec->n_grouped_digits; t++) {
+ Py_UCS4 c = PyUnicode_READ(kind, data, pos + t);
+ if (c > 127) {
+ PyErr_SetString(PyExc_SystemError, "non-ascii grouped digit");
+ return -1;
+ }
+ PyUnicode_WRITE(kind, data, pos + t, Py_TOUPPER(c));
+ }
}
pos += spec->n_grouped_digits;