Function icvXMLWriteScalar

deps/opencv/modules/core/src/persistence.cpp:2473–2506

static void
icvXMLWriteScalar( CvFileStorage* fs, const char* key, const char* data, int len )
{
    if( CV_NODE_IS_MAP(fs->struct_flags) ||
        (!CV_NODE_IS_COLLECTION(fs->struct_flags) && key) )
    {
        icvXMLWriteTag( fs, key, CV_XML_OPENING_TAG, cvAttrList(0,0) );
        char* ptr = icvFSResizeWriteBuffer( fs, fs->buffer, len );
        memcpy( ptr, data, len );
        fs->buffer = ptr + len;
        icvXMLWriteTag( fs, key, CV_XML_CLOSING_TAG, cvAttrList(0,0) );
    }
    else
    {
        char* ptr = fs->buffer;
        int new_offset = (int)(ptr - fs->buffer_start) + len;

        if( key )
            CV_Error( CV_StsBadArg, "elements with keys can not be written to sequence" );

        fs->struct_flags = CV_NODE_SEQ;

        if( (new_offset > fs->wrap_margin && new_offset - fs->struct_indent > 10) ||
            (ptr > fs->buffer_start && ptr[-1] == '>' && !CV_NODE_IS_EMPTY(fs->struct_flags)) )
        {
            ptr = icvXMLFlush(fs);
        }
        else if( ptr > fs->buffer_start + fs->struct_indent && ptr[-1] != '>' )
            *ptr++ = ' ';

        memcpy( ptr, data, len );
        fs->buffer = ptr + len;
    }
}


static void