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author | Philipp Gesang <phg42.2a@gmail.com> | 2014-12-14 12:29:58 +0100 |
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committer | Philipp Gesang <phg42.2a@gmail.com> | 2014-12-14 12:29:58 +0100 |
commit | c029158f450cd96f71db2f2a4da72a5c946089c0 (patch) | |
tree | 1c5d30d6853f6deb57cc9818b8739106a2d5e03f /src/fontloader/misc/fontloader-l-math.lua | |
parent | ea148be27d5a79fd11759856e0ab4033f328ce5a (diff) | |
parent | ca673f7b14af906606a188fd98978d3501842f63 (diff) | |
download | luaotfload-c029158f450cd96f71db2f2a4da72a5c946089c0.tar.gz |
Merge pull request #260 from phi-gamma/master
add import helper, new directory layout, revised letterspacing, fontloader gone nuts
Diffstat (limited to 'src/fontloader/misc/fontloader-l-math.lua')
-rw-r--r-- | src/fontloader/misc/fontloader-l-math.lua | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/fontloader/misc/fontloader-l-math.lua b/src/fontloader/misc/fontloader-l-math.lua new file mode 100644 index 0000000..43f60b5 --- /dev/null +++ b/src/fontloader/misc/fontloader-l-math.lua @@ -0,0 +1,34 @@ +if not modules then modules = { } end modules ['l-math'] = { + version = 1.001, + comment = "companion to luat-lib.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local floor, sin, cos, tan = math.floor, math.sin, math.cos, math.tan + +if not math.round then + function math.round(x) return floor(x + 0.5) end +end + +if not math.div then + function math.div(n,m) return floor(n/m) end +end + +if not math.mod then + function math.mod(n,m) return n % m end +end + +local pipi = 2*math.pi/360 + +if not math.sind then + function math.sind(d) return sin(d*pipi) end + function math.cosd(d) return cos(d*pipi) end + function math.tand(d) return tan(d*pipi) end +end + +if not math.odd then + function math.odd (n) return n % 2 ~= 0 end + function math.even(n) return n % 2 == 0 end +end |