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-rw-r--r--Objects/stringlib/unicode_format.h24
1 files changed, 9 insertions, 15 deletions
diff --git a/Objects/stringlib/unicode_format.h b/Objects/stringlib/unicode_format.h
index c1c2cf37812..b01d756e71b 100644
--- a/Objects/stringlib/unicode_format.h
+++ b/Objects/stringlib/unicode_format.h
@@ -875,25 +875,19 @@ do_markup(SubString *input, PyObject *args, PyObject *kwargs,
SubString literal;
SubString field_name;
SubString format_spec;
- Py_UCS4 conversion, maxchar;
- Py_ssize_t sublen;
- int err;
+ Py_UCS4 conversion;
MarkupIterator_init(&iter, input->str, input->start, input->end);
while ((result = MarkupIterator_next(&iter, &literal, &field_present,
&field_name, &format_spec,
&conversion,
&format_spec_needs_expanding)) == 2) {
- sublen = literal.end - literal.start;
- if (sublen) {
- maxchar = _PyUnicode_FindMaxChar(literal.str,
- literal.start, literal.end);
- err = _PyUnicodeWriter_Prepare(writer, sublen, maxchar);
- if (err == -1)
+ if (literal.end != literal.start) {
+ if (!field_present && iter.str.start == iter.str.end)
+ writer->overallocate = 0;
+ if (_PyUnicodeWriter_WriteSubstring(writer, literal.str,
+ literal.start, literal.end) < 0)
return 0;
- _PyUnicode_FastCopyCharacters(writer->buffer, writer->pos,
- literal.str, literal.start, sublen);
- writer->pos += sublen;
}
if (field_present) {
@@ -918,7 +912,6 @@ build_string(SubString *input, PyObject *args, PyObject *kwargs,
int recursion_depth, AutoNumber *auto_number)
{
_PyUnicodeWriter writer;
- Py_ssize_t minlen;
/* check the recursion level */
if (recursion_depth <= 0) {
@@ -927,8 +920,9 @@ build_string(SubString *input, PyObject *args, PyObject *kwargs,
return NULL;
}
- minlen = PyUnicode_GET_LENGTH(input->str) + 100;
- _PyUnicodeWriter_Init(&writer, minlen);
+ _PyUnicodeWriter_Init(&writer);
+ writer.overallocate = 1;
+ writer.min_length = PyUnicode_GET_LENGTH(input->str) + 100;
if (!do_markup(input, args, kwargs, &writer, recursion_depth,
auto_number)) {