Hershey is a textual vector font format

Summary

Hershey is a textual vector format. A Hershey vector font is a text file in which each line represents a glyph encoded in five parts: id[5]: The id of the glyph in decimal. length[3]: The number of points, in decimal. left[1]: The left position of the boundary box. right[1]: The right position of the boundary box. points[?]: A list of points, ending with a linebreak. A point is made of two characters(x, y) representing each a signed value, where capital R is 0, Q is -1, S is 1, and so on. For example, NW is equal to -4,5. Here is an example file containing 12 glyphs: ID---LENLRPOINTS------------------------ 1 9MWRMNV RRMVV RPSTS 2 16MWOMOV ROMSMUNUPSQ ROQSQURUUSVOV 3 11MXVNTMRMPNOPOSPURVTVVU 4 12MWOMOV ROMRMTNUPUSTURVOV 5 12MWOMOV ROMUM ROQSQ ROVUV 6 9MVOMOV ROMUM ROQSQ 7 15MXVNTMRMPNOPOSPURVTVVUVR RSRVR 8 9MWOMOV RUMUV ROQUQ 9 3PTRMRV 10 7NUSMSTRVPVOTOS 11 9MWOMOV RUMOS RQQUV 12 6MVOMOV ROVUV The position " R"(space followed by capital R) is special, it means lifting the pen, the position that follows will not draw a stroke. JKLMNOPQ R STUVWXYZ -8-7-6-5-4-3-2-1 0 +1+2+3+4+5+6+7+8 incoming: 2026