resolve-chars is being used by ::vgcode::dump-configure-PathCanvas, ::vgcode::dump-configure-Canvas.
resolve-chars is being used by ::vgfile::regifc clients.
Example 9.2. ::vgfile::regifc using resolve-chars
... variable _qifc; set _openifc \ [protoifc $file {%s}]; set _qifc \ [::format \ [vgcode::resolve-chars $_openifc \\ \+ \* \$ \\ [ \] \{ \} \( \)] {(.*)}];