Parse metrics directly from .ttf files

Summary:
Fixes T1325.

This has the advantage of not having to do the mapping manually. Also it means that characters like \neq are included in the mapping, so this resolves T1323 as well.

I opted to group the metrics by character instead of by metric type because I think it'll gzip better and it makes getCharacterMetrics simpler anyway.

Test Plan: The test page looks identical to the pixel to my eye.

Reviewers: emily

Reviewed By: emily

Maniphest Tasks: T1323, T1325

Differential Revision: http://phabricator.khanacademy.org/D3535
This commit is contained in:
Ben Alpert 2013-08-14 10:57:00 -07:00
parent 9fc357b8a1
commit 7f25fd7dc9
8 changed files with 53 additions and 5067 deletions

View File

@ -444,10 +444,9 @@ var makeText = function(value, style) {
if (metrics) {
var textNode = new domTree.textNode(value, metrics.height,
metrics.depth);
if (metrics.italicCorrection > 0) {
if (metrics.italic > 0) {
var span = makeSpan([], [textNode]);
span.style["margin-right"] = metrics.italicCorrection + "em";
span.style["margin-right"] = metrics.italic + "em";
return span;
} else {
@ -461,11 +460,11 @@ var makeText = function(value, style) {
};
var mathit = function(value) {
return makeSpan(["mathit"], [makeText(value, "italic")]);
return makeSpan(["mathit"], [makeText(value, "math-italic")]);
};
var mathrm = function(value) {
return makeText(value, "roman");
return makeText(value, "main-regular");
};
var buildTree = function(tree) {

File diff suppressed because one or more lines are too long

46
metric_parse.rb Normal file
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@ -0,0 +1,46 @@
require 'json'
require 'rubygems'
require 'ttfunk'
def metrics_for_file(filename)
file = TTFunk::File.open(filename)
per_em = 1.0 * file.header.units_per_em
chars = {}
file.cmap.unicode[0].code_map.sort.each do |u, g|
horiz = file.horizontal_metrics.for(g)
# width = (horiz.advance_width / per_em).round(3)
height = 0
depth = 0
italic = 0
glyph = file.glyph_outlines.for(g)
if glyph
height = (glyph.y_max / per_em).round(3)
depth = (-glyph.y_min / per_em).round(3)
italic = [0, (glyph.x_max - horiz.advance_width) / per_em].max.round(3)
end
chars[u] = {
# :width => width,
:height => height,
:depth => depth,
:italic => italic,
}
end
chars
end
font_dir = File.join(File.dirname(__FILE__), 'static/fonts/')
metrics = {}
%w[main-regular math-italic].each do |face|
metrics[face] = metrics_for_file(File.join(font_dir, 'katex_%s.ttf' % face))
end
puts "var metricMap = %s;" % metrics.to_json

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@ -1,860 +0,0 @@
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(DESIGNUNITS R 1000)
(COMMENT DESIGNSIZE (1 em) IS IN POINTS)
(COMMENT OTHER DIMENSIONS ARE MULTIPLES OF DESIGNSIZE/1000)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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(CHARWD R 888)
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)
(CHARACTER O 77 (comment arrowvertex)
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)
(CHARACTER O 100 (comment parenleftbt)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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)
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(CHARDP R 1000)
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)
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(CHARACTER C e
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(CHARHT R 722)
)
(CHARACTER C f
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(CHARACTER C g
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)
(CHARACTER C q
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)
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)
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(CHARHT R 40)
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)
(CHARACTER C t
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(CHARHT R 20)
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)
(CHARACTER C u
(CHARWD R 1055)
(CHARHT R 20)
(CHARDP R 620)
)
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(CHARHT R 40)
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)
(CHARACTER C w
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(CHARHT R 1)
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)
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(CHARDP R 600)
)
(CHARACTER C y
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(CHARDP R 600)
)
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(CHARDP R 214)
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)
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(CHARIC R 24)
)
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(CHARWD R 450)
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(CHARIC R 10)
)
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(CHARWD R 450)
(CHARHT R 334)
(CHARIC R 24)
)
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(CHARWD R 777)
(CHARDP R 600)
)
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)
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(CHARHT R 40)
(CHARDP R 2959)
)
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(CHARWD R 833)
(CHARHT R 40)
(CHARDP R 960)
(CHARIC R 20)
)
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(CHARWD R 333)
)
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(CHARHT R 40)
(CHARDP R 1159)
)
(CHARACTER O 242 (comment parenrightbig)
(CHARWD R 458)
(CHARHT R 40)
(CHARDP R 1159)
)
(CHARACTER O 243 (comment bracketleftbig)
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(CHARHT R 40)
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)
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(CHARWD R 416)
(CHARHT R 40)
(CHARDP R 1159)
)
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(CHARHT R 40)
(CHARDP R 1159)
)
(CHARACTER O 246 (comment floorrightbig)
(CHARWD R 472)
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(CHARDP R 1159)
)
(CHARACTER O 247 (comment ceilingleftbig)
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(CHARHT R 40)
(CHARDP R 1159)
)
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(CHARWD R 472)
(CHARHT R 40)
(CHARDP R 1159)
)
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(CHARHT R 40)
(CHARDP R 1159)
)
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(CHARDP R 1159)
)
(CHARACTER O 255 (comment angbracketleftbig)
(CHARWD R 472)
(CHARHT R 40)
(CHARDP R 1160)
)
(CHARACTER O 256 (comment angbracketrightbig)
(CHARWD R 472)
(CHARHT R 40)
(CHARDP R 1160)
)
(CHARACTER O 257 (comment vextendsingle)
(CHARWD R 333)
(CHARHT R 21)
(CHARDP R 621)
)
(CHARACTER O 260 (comment vextenddouble)
(CHARWD R 555)
(CHARHT R 21)
(CHARDP R 621)
)
(CHARACTER O 261 (comment slashbig)
(CHARWD R 577)
(CHARHT R 40)
(CHARDP R 1159)
)
(CHARACTER O 262 (comment backslashbig)
(CHARWD R 577)
(CHARHT R 40)
(CHARDP R 1159)
)
(CHARACTER O 263 (comment parenleftBig)
(CHARWD R 597)
(CHARHT R 40)
(CHARDP R 1759)
)
(CHARACTER O 264 (comment parenrightBig)
(CHARWD R 597)
(CHARHT R 40)
(CHARDP R 1759)
)
(CHARACTER O 265 (comment parenleftbigg)
(CHARWD R 736)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 266 (comment parenrightbigg)
(CHARWD R 736)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 267 (comment bracketleftbigg)
(CHARWD R 527)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 270 (comment bracketrightbigg)
(CHARWD R 527)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 271 (comment floorleftbigg)
(CHARWD R 583)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 272 (comment floorrightbigg)
(CHARWD R 583)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 273 (comment ceilingleftbigg)
(CHARWD R 583)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 274 (comment ceilingrightbigg)
(CHARWD R 583)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 275 (comment braceleftbigg)
(CHARWD R 750)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 276 (comment bracerightbigg)
(CHARWD R 750)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 277 (comment angbracketleftbigg)
(CHARWD R 750)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 300 (comment angbracketrightbigg)
(CHARWD R 750)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 301 (comment slashbigg)
(CHARWD R 1044)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 302 (comment backslashbigg)
(CHARWD R 1044)
(CHARHT R 40)
(CHARDP R 2359)
)
(CHARACTER O 303 (comment parenleftBigg)
(CHARWD R 791)
(CHARHT R 40)
(CHARDP R 2959)
)
(CHARACTER O 304 (comment arrowdblbt)
(CHARWD R 777)
(CHARDP R 599)
)
(CHARACTER O 320 (comment Gamma)
(CHARWD R 625)
(CHARHT R 680)
)
(CHARACTER O 321 (comment Delta)
(CHARWD R 833)
(CHARHT R 716)
)
(CHARACTER O 322 (comment Theta)
(CHARWD R 777)
(CHARHT R 705)
(CHARDP R 22)
)
(CHARACTER O 323 (comment Lambda)
(CHARWD R 694)
(CHARHT R 716)
)
(CHARACTER O 324 (comment Xi)
(CHARWD R 666)
(CHARHT R 677)
)
(CHARACTER O 325 (comment Pi)
(CHARWD R 750)
(CHARHT R 680)
)
(CHARACTER O 326 (comment Sigma)
(CHARWD R 722)
(CHARHT R 683)
)
(CHARACTER O 327 (comment Upsilon)
(CHARWD R 777)
(CHARHT R 705)
)
(CHARACTER O 330 (comment Phi)
(CHARWD R 722)
(CHARHT R 683)
)
(CHARACTER O 331 (comment Psi)
(CHARWD R 777)
(CHARHT R 683)
)
(CHARACTER O 332 (comment Omega)
(CHARWD R 722)
(CHARHT R 705)
)

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@ -1,894 +0,0 @@
(FAMILY cmsy10)
(CODINGSCHEME FONTSPECIFIC)
(DESIGNSIZE R 10.0)
(DESIGNUNITS R 1000)
(COMMENT DESIGNSIZE (1 em) IS IN POINTS)
(COMMENT OTHER DIMENSIONS ARE MULTIPLES OF DESIGNSIZE/1000)
(BOUNDARYCHAR O 201)
(FONTDIMEN
(SLANT R 0.250070)
(SPACE D 333)
(STRETCH D 166)
(SHRINK D 111)
(XHEIGHT D 400)
(QUAD D 1000)
(EXTRASPACE D 111)
)
(LIGTABLE
(LABEL C A)
(KRN C 0 R 194)
(STOP)
(LABEL C B)
(KRN C 0 R 138)
(STOP)
(LABEL C C)
(KRN C 0 R 138)
(STOP)
(LABEL C D)
(KRN C 0 R 83)
(STOP)
(LABEL C E)
(KRN C 0 R 111)
(STOP)
(LABEL C F)
(KRN C 0 R 111)
(STOP)
(LABEL C G)
(KRN C 0 R 111)
(STOP)
(LABEL C H)
(KRN C 0 R 111)
(STOP)
(LABEL C I)
(KRN C 0 R 27)
(STOP)
(LABEL C J)
(KRN C 0 R 166)
(STOP)
(LABEL C K)
(KRN C 0 R 55)
(STOP)
(LABEL C L)
(KRN C 0 R 138)
(STOP)
(LABEL C M)
(KRN C 0 R 138)
(STOP)
(LABEL C N)
(KRN C 0 R 83)
(STOP)
(LABEL C O)
(KRN C 0 R 111)
(STOP)
(LABEL C P)
(KRN C 0 R 83)
(STOP)
(LABEL C Q)
(KRN C 0 R 111)
(STOP)
(LABEL C R)
(KRN C 0 R 83)
(STOP)
(LABEL C S)
(KRN C 0 R 138)
(STOP)
(LABEL C T)
(KRN C 0 R 27)
(STOP)
(LABEL C U)
(KRN C 0 R 83)
(STOP)
(LABEL C V)
(KRN C 0 R 27)
(STOP)
(LABEL C W)
(KRN C 0 R 83)
(STOP)
(LABEL C X)
(KRN C 0 R 138)
(STOP)
(LABEL C Y)
(KRN C 0 R 83)
(STOP)
(LABEL C Z)
(KRN C 0 R 138)
(STOP)
)
(CHARACTER O 0 (comment minus)
(CHARWD R 777)
(CHARHT R 270)
)
(CHARACTER O 1 (comment periodcentered)
(CHARWD R 277)
(CHARHT R 303)
)
(CHARACTER O 2 (comment multiply)
(CHARWD R 777)
(CHARHT R 491)
)
(CHARACTER O 3 (comment asteriskmath)
(CHARWD R 500)
(CHARHT R 465)
)
(CHARACTER O 4 (comment divide)
(CHARWD R 777)
(CHARHT R 529)
(CHARDP R 29)
)
(CHARACTER O 5 (comment diamondmath)
(CHARWD R 500)
(CHARHT R 488)
)
(CHARACTER O 6 (comment plusminus)
(CHARWD R 777)
(CHARHT R 666)
)
(CHARACTER O 7 (comment minusplus)
(CHARWD R 777)
(CHARHT R 500)
(CHARDP R 166)
)
(CHARACTER O 10 (comment circleplus)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 11 (comment circleminus)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 12 (comment circlemultiply)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 13 (comment circledivide)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 14 (comment circledot)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 15 (comment circlecopyrt)
(CHARWD R 1000)
(CHARHT R 716)
(CHARDP R 216)
)
(CHARACTER O 16 (comment openbullet)
(CHARWD R 500)
(CHARHT R 444)
)
(CHARACTER O 17 (comment bullet)
(CHARWD R 500)
(CHARHT R 444)
)
(CHARACTER O 20 (comment equivasymptotic)
(CHARWD R 777)
(CHARHT R 484)
)
(CHARACTER O 21 (comment equivalence)
(CHARWD R 777)
(CHARHT R 464)
)
(CHARACTER O 22 (comment reflexsubset)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 23 (comment reflexsuperset)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 24 (comment lessequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 25 (comment greaterequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 26 (comment precedesequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 27 (comment followsequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 30 (comment similar)
(CHARWD R 777)
(CHARHT R 367)
)
(CHARACTER O 31 (comment approxequal)
(CHARWD R 777)
(CHARHT R 483)
)
(CHARACTER O 32 (comment propersubset)
(CHARWD R 777)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER O 33 (comment propersuperset)
(CHARWD R 777)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER O 34 (comment lessmuch)
(CHARWD R 1000)
(CHARHT R 566)
(CHARDP R 66)
)
(CHARACTER O 35 (comment greatermuch)
(CHARWD R 1000)
(CHARHT R 566)
(CHARDP R 66)
)
(CHARACTER O 36 (comment precedes)
(CHARWD R 777)
(CHARHT R 539)
(CHARDP R 40)
)
(CHARACTER O 37 (comment follows)
(CHARWD R 777)
(CHARHT R 539)
(CHARDP R 40)
)
(CHARACTER O 40 (comment arrowleft)
(CHARWD R 1000)
(CHARHT R 511)
(CHARDP R 11)
)
(CHARACTER O 41 (comment arrowright)
(CHARWD R 1000)
(CHARHT R 511)
(CHARDP R 11)
)
(CHARACTER O 42 (comment arrowup)
(CHARWD R 500)
(CHARHT R 693)
(CHARDP R 194)
)
(CHARACTER O 43 (comment arrowdown)
(CHARWD R 500)
(CHARHT R 694)
(CHARDP R 193)
)
(CHARACTER O 44 (comment arrowboth)
(CHARWD R 1000)
(CHARHT R 511)
(CHARDP R 11)
)
(CHARACTER O 45 (comment arrownortheast)
(CHARWD R 1000)
(CHARHT R 719)
(CHARDP R 195)
)
(CHARACTER O 46 (comment arrowsoutheast)
(CHARWD R 1000)
(CHARHT R 695)
(CHARDP R 219)
)
(CHARACTER O 47 (comment similarequal)
(CHARWD R 777)
(CHARHT R 464)
)
(CHARACTER O 50 (comment arrowdblleft)
(CHARWD R 1000)
(CHARHT R 525)
(CHARDP R 25)
)
(CHARACTER O 51 (comment arrowdblright)
(CHARWD R 1000)
(CHARHT R 525)
(CHARDP R 25)
)
(CHARACTER O 52 (comment arrowdblup)
(CHARWD R 611)
(CHARHT R 693)
(CHARDP R 194)
)
(CHARACTER O 53 (comment arrowdbldown)
(CHARWD R 611)
(CHARHT R 694)
(CHARDP R 193)
)
(CHARACTER O 54 (comment arrowdblboth)
(CHARWD R 1000)
(CHARHT R 525)
(CHARDP R 25)
)
(CHARACTER O 55 (comment arrownorthwest)
(CHARWD R 1000)
(CHARHT R 719)
(CHARDP R 195)
)
(CHARACTER O 56 (comment arrowsouthwest)
(CHARWD R 1000)
(CHARHT R 695)
(CHARDP R 219)
)
(CHARACTER O 57 (comment proportional)
(CHARWD R 777)
(CHARHT R 442)
(CHARDP R 11)
)
(CHARACTER C 0
(CHARWD R 275)
(CHARHT R 559)
)
(CHARACTER C 1
(CHARWD R 1000)
(CHARHT R 442)
(CHARDP R 11)
)
(CHARACTER C 2
(CHARWD R 666)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER C 3
(CHARWD R 666)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER C 4
(CHARWD R 888)
(CHARHT R 716)
)
(CHARACTER C 5
(CHARWD R 888)
(CHARHT R 500)
(CHARDP R 216)
)
(CHARACTER C 6
(CHARWD R 0)
(CHARHT R 716)
(CHARDP R 216)
(CHARIC R 638)
)
(CHARACTER C 7
(CHARWD R 0)
(CHARHT R 436)
(CHARIC R 123)
)
(CHARACTER C 8
(CHARWD R 555)
(CHARHT R 694)
(CHARDP R 22)
(CHARIC R 1)
)
(CHARACTER C 9
(CHARWD R 555)
(CHARHT R 694)
)
(CHARACTER O 72 (comment logicalnot)
(CHARWD R 666)
(CHARHT R 356)
)
(CHARACTER O 73 (comment emptyset)
(CHARWD R 500)
(CHARHT R 772)
(CHARDP R 78)
)
(CHARACTER O 74 (comment Rfractur)
(CHARWD R 722)
(CHARHT R 716)
(CHARDP R 22)
)
(CHARACTER O 75 (comment Ifractur)
(CHARWD R 722)
(CHARHT R 705)
(CHARDP R 11)
)
(CHARACTER O 76 (comment latticetop)
(CHARWD R 777)
(CHARHT R 668)
)
(CHARACTER O 77 (comment perpendicular)
(CHARWD R 777)
(CHARHT R 668)
)
(CHARACTER O 100 (comment aleph)
(CHARWD R 611)
(CHARHT R 693)
)
(CHARACTER C A
(CHARWD R 798)
(CHARHT R 722)
(CHARDP R 50)
)
(CHARACTER C B
(CHARWD R 656)
(CHARHT R 706)
(CHARDP R 22)
(CHARIC R 9)
)
(CHARACTER C C
(CHARWD R 526)
(CHARHT R 705)
(CHARDP R 24)
(CHARIC R 8)
)
(CHARACTER C D
(CHARWD R 771)
(CHARHT R 683)
)
(CHARACTER C E
(CHARWD R 527)
(CHARHT R 705)
(CHARDP R 22)
(CHARIC R 38)
)
(CHARACTER C F
(CHARWD R 719)
(CHARHT R 685)
(CHARDP R 32)
(CHARIC R 111)
)
(CHARACTER C G
(CHARWD R 594)
(CHARHT R 705)
(CHARDP R 119)
(CHARIC R 7)
)
(CHARACTER C H
(CHARWD R 844)
(CHARHT R 683)
(CHARDP R 49)
)
(CHARACTER C I
(CHARWD R 544)
(CHARHT R 683)
(CHARIC R 91)
)
(CHARACTER C J
(CHARWD R 677)
(CHARHT R 683)
(CHARDP R 119)
(CHARIC R 163)
)
(CHARACTER C K
(CHARWD R 761)
(CHARHT R 705)
(CHARDP R 22)
)
(CHARACTER C L
(CHARWD R 689)
(CHARHT R 705)
(CHARDP R 22)
)
(CHARACTER C M
(CHARWD R 1200)
(CHARHT R 705)
(CHARDP R 50)
)
(CHARACTER C N
(CHARWD R 820)
(CHARHT R 775)
(CHARDP R 50)
(CHARIC R 158)
)
(CHARACTER C O
(CHARWD R 796)
(CHARHT R 705)
(CHARDP R 22)
)
(CHARACTER C P
(CHARWD R 695)
(CHARHT R 683)
(CHARDP R 50)
(CHARIC R 38)
)
(CHARACTER C Q
(CHARWD R 816)
(CHARHT R 705)
(CHARDP R 124)
)
(CHARACTER C R
(CHARWD R 847)
(CHARHT R 683)
(CHARDP R 22)
)
(CHARACTER C S
(CHARWD R 605)
(CHARHT R 705)
(CHARDP R 22)
(CHARIC R 37)
)
(CHARACTER C T
(CHARWD R 544)
(CHARHT R 717)
(CHARDP R 68)
(CHARIC R 290)
)
(CHARACTER C U
(CHARWD R 625)
(CHARHT R 683)
(CHARDP R 28)
(CHARIC R 63)
)
(CHARACTER C V
(CHARWD R 612)
(CHARHT R 683)
(CHARDP R 45)
(CHARIC R 48)
)
(CHARACTER C W
(CHARWD R 987)
(CHARHT R 683)
(CHARDP R 45)
(CHARIC R 49)
)
(CHARACTER C X
(CHARWD R 713)
(CHARHT R 683)
(CHARIC R 95)
)
(CHARACTER C Y
(CHARWD R 668)
(CHARHT R 683)
(CHARDP R 135)
(CHARIC R 49)
)
(CHARACTER C Z
(CHARWD R 724)
(CHARHT R 683)
(CHARIC R 43)
)
(CHARACTER O 133 (comment union)
(CHARWD R 666)
(CHARHT R 598)
(CHARDP R 22)
)
(CHARACTER O 134 (comment intersection)
(CHARWD R 666)
(CHARHT R 598)
(CHARDP R 22)
)
(CHARACTER O 135 (comment unionmulti)
(CHARWD R 666)
(CHARHT R 598)
(CHARDP R 22)
)
(CHARACTER O 136 (comment logicaland)
(CHARWD R 666)
(CHARHT R 598)
(CHARDP R 22)
)
(CHARACTER O 137 (comment logicalor)
(CHARWD R 666)
(CHARHT R 598)
(CHARDP R 22)
)
(CHARACTER O 140 (comment turnstileleft)
(CHARWD R 611)
(CHARHT R 694)
)
(CHARACTER C a
(CHARWD R 611)
(CHARHT R 694)
)
(CHARACTER C b
(CHARWD R 444)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C c
(CHARWD R 444)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C d
(CHARWD R 444)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C e
(CHARWD R 444)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C f
(CHARWD R 500)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C g
(CHARWD R 500)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C h
(CHARWD R 388)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C i
(CHARWD R 388)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C j
(CHARWD R 277)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C k
(CHARWD R 500)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C l
(CHARWD R 500)
(CHARHT R 771)
(CHARDP R 271)
)
(CHARACTER C m
(CHARWD R 611)
(CHARHT R 771)
(CHARDP R 271)
)
(CHARACTER C n
(CHARWD R 500)
(CHARHT R 750)
(CHARDP R 250)
)
(CHARACTER C o
(CHARWD R 277)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER C p
(CHARWD R 833)
(CHARHT R 40)
(CHARDP R 960)
(CHARIC R 20)
)
(CHARACTER C q
(CHARWD R 750)
(CHARHT R 683)
)
(CHARACTER C r
(CHARWD R 833)
(CHARHT R 683)
(CHARDP R 33)
)
(CHARACTER C s
(CHARWD R 416)
(CHARHT R 716)
(CHARDP R 216)
(CHARIC R 56)
)
(CHARACTER C t
(CHARWD R 666)
(CHARHT R 598)
)
(CHARACTER C u
(CHARWD R 666)
(CHARHT R 598)
)
(CHARACTER C v
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER C w
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER C x
(CHARWD R 444)
(CHARHT R 705)
(CHARDP R 205)
)
(CHARACTER C y
(CHARWD R 444)
(CHARHT R 705)
(CHARDP R 216)
)
(CHARACTER C z
(CHARWD R 444)
(CHARHT R 705)
(CHARDP R 205)
)
(CHARACTER O 173 (comment paragraph)
(CHARWD R 611)
(CHARHT R 694)
(CHARDP R 194)
)
(CHARACTER O 174 (comment club)
(CHARWD R 777)
(CHARHT R 727)
(CHARDP R 130)
)
(CHARACTER O 175 (comment diamond)
(CHARWD R 777)
(CHARHT R 727)
(CHARDP R 163)
)
(CHARACTER O 176 (comment heart)
(CHARWD R 777)
(CHARHT R 716)
(CHARDP R 33)
)
(CHARACTER O 177 (comment spade)
(CHARWD R 777)
(CHARHT R 727)
(CHARDP R 130)
)
(CHARACTER O 200 (comment arrowleft)
(CHARWD R 1000)
(CHARHT R 511)
(CHARDP R 11)
)
(CHARACTER O 240 (comment space)
(CHARWD R 333)
)
(CHARACTER O 241 (comment minus)
(CHARWD R 777)
(CHARHT R 270)
)
(CHARACTER O 242 (comment periodcentered)
(CHARWD R 277)
(CHARHT R 303)
)
(CHARACTER O 243 (comment multiply)
(CHARWD R 777)
(CHARHT R 491)
)
(CHARACTER O 244 (comment asteriskmath)
(CHARWD R 500)
(CHARHT R 465)
)
(CHARACTER O 245 (comment divide)
(CHARWD R 777)
(CHARHT R 529)
(CHARDP R 29)
)
(CHARACTER O 246 (comment diamondmath)
(CHARWD R 500)
(CHARHT R 488)
)
(CHARACTER O 247 (comment plusminus)
(CHARWD R 777)
(CHARHT R 666)
)
(CHARACTER O 250 (comment minusplus)
(CHARWD R 777)
(CHARHT R 500)
(CHARDP R 166)
)
(CHARACTER O 251 (comment circleplus)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 252 (comment circleminus)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 255 (comment circlemultiply)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 256 (comment circledivide)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 257 (comment circledot)
(CHARWD R 777)
(CHARHT R 583)
(CHARDP R 83)
)
(CHARACTER O 260 (comment circlecopyrt)
(CHARWD R 1000)
(CHARHT R 716)
(CHARDP R 216)
)
(CHARACTER O 261 (comment openbullet)
(CHARWD R 500)
(CHARHT R 444)
)
(CHARACTER O 262 (comment bullet)
(CHARWD R 500)
(CHARHT R 444)
)
(CHARACTER O 263 (comment equivasymptotic)
(CHARWD R 777)
(CHARHT R 484)
)
(CHARACTER O 264 (comment equivalence)
(CHARWD R 777)
(CHARHT R 464)
)
(CHARACTER O 265 (comment reflexsubset)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 266 (comment reflexsuperset)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 267 (comment lessequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 270 (comment greaterequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 271 (comment precedesequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 272 (comment followsequal)
(CHARWD R 777)
(CHARHT R 636)
(CHARDP R 137)
)
(CHARACTER O 273 (comment similar)
(CHARWD R 777)
(CHARHT R 367)
)
(CHARACTER O 274 (comment approxequal)
(CHARWD R 777)
(CHARHT R 483)
)
(CHARACTER O 275 (comment propersubset)
(CHARWD R 777)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER O 276 (comment propersuperset)
(CHARWD R 777)
(CHARHT R 540)
(CHARDP R 40)
)
(CHARACTER O 277 (comment lessmuch)
(CHARWD R 1000)
(CHARHT R 566)
(CHARDP R 66)
)
(CHARACTER O 300 (comment greatermuch)
(CHARWD R 1000)
(CHARHT R 566)
(CHARDP R 66)
)
(CHARACTER O 301 (comment precedes)
(CHARWD R 777)
(CHARHT R 539)
(CHARDP R 40)
)
(CHARACTER O 302 (comment follows)
(CHARWD R 777)
(CHARHT R 539)
(CHARDP R 40)
)
(CHARACTER O 303 (comment arrowleft)
(CHARWD R 1000)
(CHARHT R 511)
(CHARDP R 11)
)
(CHARACTER O 304 (comment spade)
(CHARWD R 777)
(CHARHT R 727)
(CHARDP R 130)
)

View File

@ -1,336 +0,0 @@
#!/usr/bin/env python
import re
import json
import os
expr_start = re.compile(r"\s*\(")
expr_value = re.compile(r"\s*([^\s\)]+)")
expr_end = re.compile(r"\s*\)")
empty = re.compile(r"\s*$")
def inner_parse_expr(expr):
l = []
while True:
if re.match(empty, expr):
return expr, l
elif re.match(expr_start, expr):
match = re.match(expr_start, expr)
new_expr = expr[len(match.group(0)):]
expr, group = inner_parse_expr(new_expr)
l.append(group)
elif re.match(expr_value, expr):
match = re.match(expr_value, expr)
expr = expr[len(match.group(0)):]
l.append(match.group(1))
elif re.match(expr_end, expr):
match = re.match(expr_end, expr)
new_expr = expr[len(match.group(0)):]
return new_expr, l
else:
raise ValueError("Invalid input")
def parse_expr(expr):
_, group = inner_parse_expr(expr)
return group
def read_pl(pl_file):
with open(pl_file) as pl:
return parse_expr(pl.read())
class Metric:
def __init__(self, char, height, depth, italic_correction):
self.char = char
self.height = float(height) / 1000
self.depth = float(depth) / 1000
self.italic_correction = float(italic_correction) / 1000
def __repr__(self):
return "Char {0} ({1:.3f}+{2:.3f})".format(
self.char, self.height, self.depth)
# Different styles of text, found on page 13 of The TeX book
ROMAN = "roman"
SLANTED = "slanted"
ITALIC = "italic"
TYPEWRITER = "typewriter"
BOLD = "bold"
# The numbers used in this map are all in octal, because that's how all the
# charts for the numbers are written
file_map = {
"cmmi10.pl": {
13: (u"\u03b1", ITALIC), # \alpha
14: (u"\u03b2", ITALIC), # \beta
15: (u"\u03b3", ITALIC), # \gamma
16: (u"\u03b4", ITALIC), # \delta
17: (u"\u03b5", ITALIC), # \varepsilon
20: (u"\u03b6", ITALIC), # \zeta
21: (u"\u03b7", ITALIC), # \eta
22: (u"\u03b8", ITALIC), # \theta
23: (u"\u03b9", ITALIC), # \iota
24: (u"\u03ba", ITALIC), # \kappa
25: (u"\u03bb", ITALIC), # \lambda
26: (u"\u03bc", ITALIC), # \mu
27: (u"\u03bd", ITALIC), # \nu
30: (u"\u03be", ITALIC), # \xi
31: (u"\u03c0", ITALIC), # \pi
32: (u"\u03c1", ITALIC), # \rho
33: (u"\u03c3", ITALIC), # \sigma
34: (u"\u03c4", ITALIC), # \tau
35: (u"\u03c5", ITALIC), # \upsilon
36: (u"\u03d5", ITALIC), # \phi
37: (u"\u03c7", ITALIC), # \chi
40: (u"\u03c8", ITALIC), # \psi
41: (u"\u03c9", ITALIC), # \omega
42: (u"\u03b5", ITALIC), # \epsilon
43: (u"\u03d1", ITALIC), # \vartheta
44: (u"\u03d6", ITALIC), # \varpi
45: (u"\u03f1", ITALIC), # \varrho
46: (u"\u03c2", ITALIC), # \varsigma
47: (u"\u03c6", ITALIC), # \varphi
72: (u".", ROMAN),
73: (u",", ROMAN),
74: (u"<", ROMAN),
75: (u"/", ROMAN),
76: (u">", ROMAN),
101: (u"A", ITALIC),
102: (u"B", ITALIC),
103: (u"C", ITALIC),
104: (u"D", ITALIC),
105: (u"E", ITALIC),
106: (u"F", ITALIC),
107: (u"G", ITALIC),
110: (u"H", ITALIC),
111: (u"I", ITALIC),
112: (u"J", ITALIC),
113: (u"K", ITALIC),
114: (u"L", ITALIC),
115: (u"M", ITALIC),
116: (u"N", ITALIC),
117: (u"O", ITALIC),
120: (u"P", ITALIC),
121: (u"Q", ITALIC),
122: (u"R", ITALIC),
123: (u"S", ITALIC),
124: (u"T", ITALIC),
125: (u"U", ITALIC),
126: (u"V", ITALIC),
127: (u"W", ITALIC),
130: (u"X", ITALIC),
131: (u"Y", ITALIC),
132: (u"Z", ITALIC),
141: (u"a", ITALIC),
142: (u"b", ITALIC),
143: (u"c", ITALIC),
144: (u"d", ITALIC),
145: (u"e", ITALIC),
146: (u"f", ITALIC),
147: (u"g", ITALIC),
150: (u"h", ITALIC),
151: (u"i", ITALIC),
152: (u"j", ITALIC),
153: (u"k", ITALIC),
154: (u"l", ITALIC),
155: (u"m", ITALIC),
156: (u"n", ITALIC),
157: (u"o", ITALIC),
160: (u"p", ITALIC),
161: (u"q", ITALIC),
162: (u"r", ITALIC),
163: (u"s", ITALIC),
164: (u"t", ITALIC),
165: (u"u", ITALIC),
166: (u"v", ITALIC),
167: (u"w", ITALIC),
170: (u"x", ITALIC),
171: (u"y", ITALIC),
172: (u"z", ITALIC),
},
"cmr10.pl": {
0: (u"\u0393", ROMAN), # \Gamma
1: (u"\u0394", ROMAN), # \Delta
2: (u"\u0398", ROMAN), # \Theta
3: (u"\u039b", ROMAN), # \Lambda
4: (u"\u039e", ROMAN), # \Xi
5: (u"\u03a0", ROMAN), # \Pi
6: (u"\u03a3", ROMAN), # \Sigma
7: (u"\u03a5", ROMAN), # \Upsilon
10: (u"\u03a6", ROMAN), # \Phi
11: (u"\u03a8", ROMAN), # \Psi
12: (u"\u03a9", ROMAN), # \Omega
41: (u"!", ROMAN),
42: (u"\"", ROMAN),
44: (u"$", ROMAN),
50: (u"(", ROMAN),
51: (u")", ROMAN),
53: (u"+", ROMAN),
60: (u"0", ROMAN),
61: (u"1", ROMAN),
62: (u"2", ROMAN),
63: (u"3", ROMAN),
64: (u"4", ROMAN),
65: (u"5", ROMAN),
66: (u"6", ROMAN),
67: (u"7", ROMAN),
70: (u"8", ROMAN),
71: (u"9", ROMAN),
72: (u":", ROMAN),
73: (u";", ROMAN),
75: (u"=", ROMAN),
77: (u"?", ROMAN),
100: (u"@", ROMAN),
101: (u"A", ROMAN),
102: (u"B", ROMAN),
103: (u"C", ROMAN),
104: (u"D", ROMAN),
105: (u"E", ROMAN),
106: (u"F", ROMAN),
107: (u"G", ROMAN),
110: (u"H", ROMAN),
111: (u"I", ROMAN),
112: (u"J", ROMAN),
113: (u"K", ROMAN),
114: (u"L", ROMAN),
115: (u"M", ROMAN),
116: (u"N", ROMAN),
117: (u"O", ROMAN),
120: (u"P", ROMAN),
121: (u"Q", ROMAN),
122: (u"R", ROMAN),
123: (u"S", ROMAN),
124: (u"T", ROMAN),
125: (u"U", ROMAN),
126: (u"V", ROMAN),
127: (u"W", ROMAN),
130: (u"X", ROMAN),
131: (u"Y", ROMAN),
132: (u"Z", ROMAN),
133: (u"[", ROMAN),
135: (u"]", ROMAN),
140: (u"`", ROMAN),
141: (u"a", ROMAN),
142: (u"b", ROMAN),
143: (u"c", ROMAN),
144: (u"d", ROMAN),
145: (u"e", ROMAN),
146: (u"f", ROMAN),
147: (u"g", ROMAN),
150: (u"h", ROMAN),
151: (u"i", ROMAN),
152: (u"j", ROMAN),
153: (u"k", ROMAN),
154: (u"l", ROMAN),
155: (u"m", ROMAN),
156: (u"n", ROMAN),
157: (u"o", ROMAN),
160: (u"p", ROMAN),
161: (u"q", ROMAN),
162: (u"r", ROMAN),
163: (u"s", ROMAN),
164: (u"t", ROMAN),
165: (u"u", ROMAN),
166: (u"v", ROMAN),
167: (u"w", ROMAN),
170: (u"x", ROMAN),
171: (u"y", ROMAN),
172: (u"z", ROMAN),
},
"cmsy10.pl": {
0: (u"\u2212", ROMAN), # -
1: (u"\u22c5", ROMAN), # \cdot
2: (u"\u00d7", ROMAN), # \times
3: (u"\u2217", ROMAN), # *
4: (u"\u00f7", ROMAN), # \div
6: (u"\u00b1", ROMAN), # \pm
16: (u"\u2218", ROMAN), # \circ
24: (u"\u2264", ROMAN), # \leq
25: (u"\u2265", ROMAN), # \geq
40: (u"\u2190", ROMAN), # \leftarrow
41: (u"\u2192", ROMAN), # \rightarrow
60: (u"\u2032", ROMAN), # \prime
61: (u"\u221e", ROMAN), # \infty
152: (u"|", ROMAN), # |
}
}
def read_metrics(pl_file, metrics):
pl = read_pl(pl_file)
metrics_to_read = file_map[pl_file]
for elem in pl:
if elem[0] == "CHARACTER":
if elem[1] == "C":
char = int(oct(ord(elem[2])))
elif elem[1] == "O":
char = int(elem[2])
else:
continue
if not char in metrics_to_read:
continue
map_char, map_style = metrics_to_read[char]
char_height = 0
char_depth = 0
italic_correction = 0
for metric in elem[3:]:
if metric[0] == "comment":
continue
elif metric[0] == "CHARHT":
char_height = int(metric[2])
elif metric[0] == "CHARDP":
char_depth = int(metric[2])
elif metric[0] == "CHARIC":
italic_correction = int(metric[2])
metrics[map_style].append(
Metric(map_char, char_height, char_depth,
italic_correction))
def print_metrics(metrics):
metric_map = {
style: {
"height": {
metric.char: metric.height for metric in metric_list
},
"depth": {
metric.char: metric.depth for metric in metric_list
},
"italicCorrection": {
metric.char: metric.italic_correction for metric in metric_list
},
} for style, metric_list in metrics.iteritems()
}
print "var metricMap = {0};".format(json.dumps(metric_map, indent=4))
if __name__ == "__main__":
os.chdir(os.path.dirname(os.path.realpath(__file__)))
metrics = {
"roman": [],
"italic": [],
"slanted": [],
"typewriter": [],
"bold": [],
}
for metric_file in file_map:
read_metrics(metric_file, metrics)
metrics["roman"].append(Metric(u'\u00a0', 0, 0, 0))
print_metrics(metrics)