Towards https://gitlab.com/graphviz/graphviz/-/issues/2058.
EXPORTS
add_box
-addPS
arrow_bb
arrow_flags
arrow_gen
ccwrotatep
ccwrotatepf
charsetToStr
-clearPM
clip_and_install
coord
cwrotatep
flip_rec_box
flip_rec_boxf
free_label
-freePM
-freePS
getdouble
getsplinepoints
graph_cleanup
gvusershape_file_release
gvwrite
initMapData
-inPS
-insertPM
-updatePM
-insertPS
-isInPS
isPolygon
line_intersect
lineToBox
make_simple_label
makeSelfEdge
new_spline
-newPM
-newPS
parse_style
place_graph_label
place_portlabel
-pointsOf
pop_obj_state
ptToLine2
push_obj_state
shape_clip
shapeOf
simpleSplineRoute
-sizeOf
textfont_dict_open
textfont_dict_close
textspan_size