[#BloombergLP-bslfmt-FormatSpecificationParser-filler] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslfmt.adoc[bslfmt]::xref:BloombergLP/bslfmt/FormatSpecificationParser.adoc[FormatSpecificationParser]::filler :relfileprefix: ../../../ :mrdocs: Return the stored filler string. If `parse` has not previously been called throw a `format_error` exception. == Synopsis Declared in `<bslfmt_formatspecificationparser.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- constexpr t_CHAR const* filler() const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#