Function tui_start

ds4_eval.c:2288–2337

        if (!finish && cur[0] == '<' &&
            (bytes_is_partial_prefix(cur, rem, open) ||
             bytes_is_partial_prefix(cur, rem, close)))
        {
            if (rem < sizeof(ui->pending_tag)) {
                memcpy(ui->pending_tag, cur, rem);
                ui->pending_tag_len = rem;
            }
            break;
        }
        stream_append_visible(ui, cur, 1);
        i++;
    }
    free(tmp);
}

typedef struct {
    size_t start;
    size_t end;
} line_span;

static void tui_draw_stream(eval_ui *ui) {
    if (!ui->enabled) return;
    const int width = tui_right_text_w(ui);

    line_span *lines = NULL;
    int line_len = 0;
    int line_cap = 0;
    size_t line_start = 0;
    int col = 0;

    for (size_t i = 0; i < ui->stream.len; i++) {
        char c = ui->stream.v[i];
        bool end_line = false;
        size_t end = i;
        if (c == '\n') {
            end_line = true;
            end = i;
        } else {
            col++;
            if (col >= width) {
                end_line = true;
                end = i + 1;
            }
        }
        if (end_line) {
            if (line_len == line_cap) {
                line_cap = line_cap ? line_cap * 2 : 64;
                line_span *v = realloc(lines, (size_t)line_cap * sizeof(*lines));
                if (!v) {
                    fprintf(stderr, "ds4-eval: out of memory\n");
                    exit(1);
                }
                lines = v;
            }