LIBHERSHEYFONT(3)

✨ libhersheyfont β€” Hershey vector fonts library ✨

okay bestie, sit down, hydrate, and let me tell you about the C manual page LIBHERSHEYFONT(3) from the Library Functions Manual πŸ’– this is the whole thing, every single crumb, nothing skipped, periodt.


🌸 NAME 🌸

libhersheyfont β€” the Hershey vector fonts library πŸ¦‹


✨ SYNOPSIS ✨

like, here's how you actually call it:

#include <hersheyfont.h>

struct hershey_font *hershey_font_load(const char *fontname);
struct hershey_font *hershey_jhf_font_load(const char *jhffile);

struct hershey_glyph *hershey_font_glyph(struct hershey_font *hf,
       unsigned char c);

void hershey_font_free(struct hershey_font *hf);

πŸ’… DESCRIPTION πŸ’…

so the Hershey fonts are this iconic collection of vector fonts, developed circa 1967 by Dr. A. V. Hershey. yes, 1967. they were doing vector fonts before it was cool, no cap πŸ‘‘

libhersheyfont gives you C routines to load and process .jhf format Hershey font files.

a Hershey font can be loaded with herhsey_font_load() or herhsey_font_jhf_load() β€” either one hands you back a pointer to a newly allocated struct hershey_font. πŸŽ€

bestie, listen: that struct is yours now and you gotta free it after use with a call to herhsey_font_free(). don't be the person who leaks. it's giving undefined-vibes-only energy and not in a cute way πŸ’€

the glyph line segment data for each ASCII character is accessed with herhsey_font_glyph() πŸ–ŠοΈβœ¨

and for the details of the structure members? go read the hersheyfont.h header file, that's where the lore lives.


🌈 FONTS 🌈

hershey_font_load()'s fontname parameter has to be the name of a system-installed Hershey font. the Hershey fonts likely to be installed are:

astrology, cursive, cyrillic, futural, futuram, gothgbt, gothgrt, gothiceng, gothicger, gothicita, gothitt, greekc, greek, greeks, japanese, markers, mathlow, mathupp, meteorology, music, rowmand, rowmans, rowmant, scriptc, scripts, symbolic, timesg, timesib, timesi, timesrb, timesr

like, the range?? astrology AND meteorology AND music?? she contains multitudes fr fr 🫢

and herhsey_font_jhf_load()'s jhffile parameter has to be the filename of a Hershey font .jhf file. simple as that. πŸ“


🧚 ENVIRONMENT VARIABLE 🧚

  • HERSHEY_FONTS_DIR β€” the directory where herhsey_font_load() expects to find .jhf font files. (the default directory is likely /usr/share/hershey-fonts/ or /usr/local/share/hershey-fonts/, depending on the build configuration.) πŸ‘€

⭐ EXAMPLE ⭐

go look at hershey-font-example.c for a complete working example program β€” it even includes code to parse the glyph data, which is the part everyone gets stuck on, so slay πŸŽ€

likely location:

/usr/share/doc/libhersheyfont/examples/hershey-font-example.c

πŸ‘‘ AUTHOR πŸ‘‘

libhersheyfont was written by Kamal Mostafa <kamal@whence.com>. absolute main character energy, we love to see it πŸ’œ


and that's the whole page, bestie β€” dated 2 December 2013, from the LIBHERSHEYFONT(3) manual page. go forth and load some vectors πŸ’–βœ¨πŸŒΈπŸ¦‹