See also escString, text with escape-sequences.
string is a valid type for: charset class colorscheme comment diredgeconstraints fixedsize fontname fontnames fontpath group image imagepath imagepos imagescale labelfontname labeljust labelloc layerlistsep layersep layout lhead ltail mode model ordering orientation overlap ratio root samehead sametail shapefile splines stylesheet target TBbalance xdotversion
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Licensed under the Eclipse Public License 1.0.
https://www.graphviz.org/docs/attr-types/string/