/* Title: Pure/Admin/isabelle_fonts.scala
Author: Makarius
Construction of Isabelle fonts.
*/
package isabelle
object Isabelle_Fonts
{
/* relevant codepoint ranges */
object Range
{
def base_font: Seq[Int] =
(0x0020 to 0x007e) ++ // ASCII
(0x00a0 to 0x024f) ++ // Latin Extended-A/B
(0x0400 to 0x04ff) ++ // Cyrillic
(0x0600 to 0x06ff) ++ // Arabic
Seq(
0x2018, // single quote
0x2019, // single quote
0x201a, // single quote
0x201c, // double quote
0x201d, // double quote
0x201e, // double quote
0x2039, // single guillemet
0x203a, // single guillemet
0x204b, // FOOTNOTE
0x20ac, // Euro
0xfb01, // ligature fi
0xfb02, // ligature fl
0xfffd, // replacement character
)
def isabelle_font: Seq[Int] =
Seq(
0x05, // X
0x06, // Y
0x07, // EOF
0x7f, // DEL
0xac, // logicalnot
0xb0, // degree
0xb1, // plusminus
0xb7, // periodcentered
0xd7, // multiply
0xf7, // divide
) ++
(0x0370 to 0x03ff) ++ // Greek (pseudo math)
(0x0590 to 0x05ff) ++ // Hebrew (non-mono)
Seq(
0x2010, // hyphen
0x2013, // dash
0x2014, // dash
0x2015, // dash
0x2020, // dagger
0x2021, // double dagger
0x2022, // bullet
0x2026, // ellipsis
0x2030, // perthousand
0x2032, // minute
0x2033, // second
0x2038, // caret
0x20cd, // currency symbol
) ++
(0x2100 to 0x214f) ++ // Letterlike Symbols
(0x2190 to 0x21ff) ++ // Arrows
(0x2200 to 0x22ff) ++ // Mathematical Operators
(0x2300 to 0x23ff) ++ // Miscellaneous Technical
Seq(
0x2423, // graphic for space
0x2500, // box drawing
0x2501, // box drawing
0x2508, // box drawing
0x2509, // box drawing
0x2550, // box drawing
) ++
(0x25a0 to 0x25ff) ++ // Geometric Shapes
Seq(
0x261b, // ACTION
0x2660, // spade suit
0x2661, // heart suit
0x2662, // diamond suit
0x2663, // club suit
0x266d, // musical flat
0x266e, // musical natural
0x266f, // musical sharp
0x2756, // UNDEFINED
0x2759, // BOLD
0x27a7, // DESCR
0x27e6, // left white square bracket
0x27e7, // right white square bracket
0x27e8, // left angle bracket
0x27e9, // right angle bracket
) ++
(0x27f0 to 0x27ff) ++ // Supplemental Arrows-A
(0x2900 to 0x297f) ++ // Supplemental Arrows-B
(0x2980 to 0x29ff) ++ // Miscellaneous Mathematical Symbols-B
(0x2a00 to 0x2aff) ++ // Supplemental Mathematical Operators
Seq(0x2b1a) ++ // VERBATIM
(0x1d400 to 0x1d7ff) ++ // Mathematical Alphanumeric Symbols
Seq(
0x1f310, // globe with meridians (Symbola font)
0x1f4d3, // notebook (Symbola font)
0x1f5c0, // folder (Symbola font)
0x1f5cf, // page (Symbola font)
)
}
/* font families */
sealed case class Family(
plain: String = "",
bold: String = "",
italic: String = "",
bold_italic: String = "")
{
val fonts: List[String] =
proper_string(plain).toList :::
proper_string(bold).toList :::
proper_string(italic).toList :::
proper_string(bold_italic).toList
def get(index: Int): String = fonts(index % fonts.length)
}
object Family
{
def isabelle_text: Family =
Family(
plain = "IsabelleText.sfd",
bold = "IsabelleTextBold.sfd")
def deja_vu_sans_mono: Family =
Family(
plain = "DejaVuSansMono.ttf",
bold = "DejaVuSansMono-Bold.ttf",
italic = "DejaVuSansMono-Oblique.ttf",
bold_italic = "DejaVuSansMono-BoldOblique.ttf")
def deja_vu_sans: Family =
Family(
plain = "DejaVuSans.ttf",
bold = "DejaVuSans-Bold.ttf",
italic = "DejaVuSans-Oblique.ttf",
bold_italic = "DejaVuSans-BoldOblique.ttf")
def deja_vu_serif: Family =
Family(
plain = "DejaVuSerif.ttf",
bold = "DejaVuSerif-Bold.ttf",
italic = "DejaVuSerif-Italic.ttf",
bold_italic = "DejaVuSerif-BoldItalic.ttf")
}
/* build fonts */
private def find_file(dirs: List[Path], name: String): Path =
{
val path = Path.explode(name)
dirs.collectFirst({ case dir if (dir + path).is_file => dir + path }) match {
case Some(file) => file
case None =>
error(cat_lines(
("Failed to find font file " + path + " in directories:") ::
dirs.map(dir => " " + dir.toString)))
}
}
val default_sources: List[Family] =
List(Family.deja_vu_sans_mono, Family.deja_vu_sans, Family.deja_vu_serif)
def build_fonts(
sources: List[Family] = default_sources,
source_dirs: List[Path] = Nil,
target_prefix: String = "Isabelle",
target_version: String = "",
target_dir: Path = Path.current,
progress: Progress = No_Progress)
{
Isabelle_System.mkdirs(target_dir)
val font_dirs = source_dirs ::: List(Path.explode("~~/lib/fonts"))
for (isabelle_font <- Family.isabelle_text.fonts) {
val isabelle_file = find_file(font_dirs, isabelle_font)
val isabelle_names = Fontforge.font_names(isabelle_file)
val target_names = isabelle_names.update(version = target_version)
val target_file = target_dir + target_names.ttf
progress.echo("Creating " + target_file.toString + " ...")
Fontforge.execute(
Fontforge.commands(
Fontforge.open(isabelle_file),
target_names.set,
Fontforge.generate(target_file),
Fontforge.close
)
).check
}
for { source <- sources; (source_font, index) <- source.fonts.zipWithIndex } {
val isabelle_file = find_file(font_dirs, Family.isabelle_text.get(index))
val source_file = find_file(font_dirs, source_font)
val source_names = Fontforge.font_names(source_file)
val target_names = source_names.update(prefix = target_prefix, version = target_version)
val target_file = target_dir + target_names.ttf
progress.echo("Creating " + target_file.toString + " ...")
Fontforge.execute(
Fontforge.commands(
Fontforge.open(isabelle_file),
Fontforge.select(Range.isabelle_font),
Fontforge.copy,
Fontforge.close,
Fontforge.open(source_file),
Fontforge.select(Range.base_font),
Fontforge.select_invert,
Fontforge.clear,
Fontforge.select(Range.isabelle_font),
Fontforge.paste,
target_names.set,
Fontforge.generate(target_file),
Fontforge.close)
).check
}
}
/* Isabelle tool wrapper */
val isabelle_tool =
Isabelle_Tool("build_fonts", "construct Isabelle fonts", args =>
{
var source_dirs: List[Path] = Nil
var target_dir = Path.current
val getopts = Getopts("""
Usage: isabelle build_fonts [OPTIONS]
Options are:
-D DIR target directory (default ".")
-d DIR additional source directory
Construct Isabelle fonts from Deja Vu font families and Isabelle symbols.
""",
"D:" -> (arg => target_dir = Path.explode(arg)),
"d:" -> (arg => source_dirs = source_dirs ::: List(Path.explode(arg))))
val more_args = getopts(args)
if (more_args.nonEmpty) getopts.usage()
val progress = new Console_Progress
build_fonts(source_dirs = source_dirs, target_dir = target_dir, progress = progress)
})
}