diff options
Diffstat (limited to 'tex/context/base/font-afm.lua')
| -rw-r--r-- | tex/context/base/font-afm.lua | 372 |
1 files changed, 91 insertions, 281 deletions
diff --git a/tex/context/base/font-afm.lua b/tex/context/base/font-afm.lua index 9d3d8ddd7..dab948b32 100644 --- a/tex/context/base/font-afm.lua +++ b/tex/context/base/font-afm.lua @@ -17,12 +17,7 @@ where we handles font encodings. Eventually font encoding goes away.</p> --ldx]]-- -local trace_features = false trackers.register("afm.features", function(v) trace_features = v end) -local trace_indexing = false trackers.register("afm.indexing", function(v) trace_indexing = v end) -local trace_loading = false trackers.register("afm.loading", function(v) trace_loading = v end) -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) - -local report_afm = logs.reporter("fonts","afm loading") +local fonts, logs, trackers, containers, resolvers = fonts, logs, trackers, containers, resolvers local next, type, tonumber = next, type, tonumber local format, match, gmatch, lower, gsub, strip = string.format, string.match, string.gmatch, string.lower, string.gsub, string.strip @@ -30,30 +25,35 @@ local abs = math.abs local P, S, C, R, lpegmatch, patterns = lpeg.P, lpeg.S, lpeg.C, lpeg.R, lpeg.match, lpeg.patterns local derivetable = table.derive -local fonts = fonts -local afm = { } -local pfb = { } -fonts.handlers.afm = afm -fonts.handlers.pfb = pfb +local trace_features = false trackers.register("afm.features", function(v) trace_features = v end) +local trace_indexing = false trackers.register("afm.indexing", function(v) trace_indexing = v end) +local trace_loading = false trackers.register("afm.loading", function(v) trace_loading = v end) +local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) -afm.version = 1.410 -- incrementing this number one up will force a re-cache -afm.cache = containers.define("fonts", "afm", afm.version, true) -afm.autoprefixed = true -- this will become false some day (catches texnansi-blabla.*) +local report_afm = logs.reporter("fonts","afm loading") -afm.syncspace = true -- when true, nicer stretch values -afm.addligatures = true -- best leave this set to true -afm.addtexligatures = true -- best leave this set to true -afm.addkerns = true -- best leave this set to true +local findbinfile = resolvers.findbinfile local definers = fonts.definers local readers = fonts.readers local constructors = fonts.constructors -local findbinfile = resolvers.findbinfile +local afm = constructors.newhandler("afm") +local pfb = constructors.newhandler("pfb") local afmfeatures = constructors.newfeatures("afm") local registerafmfeature = afmfeatures.register +afm.version = 1.410 -- incrementing this number one up will force a re-cache +afm.cache = containers.define("fonts", "afm", afm.version, true) +afm.autoprefixed = true -- this will become false some day (catches texnansi-blabla.*) + +afm.helpdata = { } -- set later on so no local for this +afm.syncspace = true -- when true, nicer stretch values +afm.addligatures = true -- best leave this set to true +afm.addtexligatures = true -- best leave this set to true +afm.addkerns = true -- best leave this set to true + local function setmode(tfmdata,value) if value then tfmdata.properties.mode = lower(value) @@ -429,79 +429,26 @@ end and extra kerns. This saves quite some lookups later.</p> --ldx]]-- ---[[ldx-- -<p>Only characters with a code smaller than 128 make sense, -anything larger is encoding dependent. An interesting complication -is that a character can be in an encoding twice but is hashed -once.</p> ---ldx]]-- - -local ligatures = { -- okay, nowadays we could parse the name but type 1 fonts - ['f'] = { -- don't have that many ligatures anyway - { 'f', 'ff' }, - { 'i', 'fi' }, - { 'l', 'fl' }, - }, - ['ff'] = { - { 'i', 'ffi' } - }, - ['fi'] = { - { 'i', 'fii' } - }, - ['fl'] = { - { 'i', 'fli' } - }, - ['s'] = { - { 't', 'st' } - }, - ['i'] = { - { 'j', 'ij' } - }, -} - -local texligatures = { - -- ['space'] = { - -- { 'L', 'Lslash' }, - -- { 'l', 'lslash' } - -- }, - -- ['question'] = { - -- { 'quoteleft', 'questiondown' } - -- }, - -- ['exclam'] = { - -- { 'quoteleft', 'exclamdown' } - -- }, - ['quoteleft'] = { - { 'quoteleft', 'quotedblleft' } - }, - ['quoteright'] = { - { 'quoteright', 'quotedblright' } - }, - ['hyphen'] = { - { 'hyphen', 'endash' } - }, - ['endash'] = { - { 'hyphen', 'emdash' } - } -} - local addthem = function(rawdata,ligatures) - local descriptions = rawdata.descriptions - local resources = rawdata.resources - local unicodes = resources.unicodes - local names = resources.names - for ligname, ligdata in next, ligatures do - local one = descriptions[unicodes[ligname]] - if one then - for _, pair in next, ligdata do - local two, three = unicodes[pair[1]], unicodes[pair[2]] - if two and three then - local ol = one.ligatures - if ol then - if not ol[two] then - ol[two] = three + if ligatures then + local descriptions = rawdata.descriptions + local resources = rawdata.resources + local unicodes = resources.unicodes + local names = resources.names + for ligname, ligdata in next, ligatures do + local one = descriptions[unicodes[ligname]] + if one then + for _, pair in next, ligdata do + local two, three = unicodes[pair[1]], unicodes[pair[2]] + if two and three then + local ol = one.ligatures + if ol then + if not ol[two] then + ol[two] = three + end + else + one.ligatures = { [two] = three } end - else - one.ligatures = { [two] = three } end end end @@ -509,8 +456,8 @@ local addthem = function(rawdata,ligatures) end end -addligatures = function(rawdata) addthem(rawdata,ligatures ) end -addtexligatures = function(rawdata) addthem(rawdata,texligatures) end +addligatures = function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end +addtexligatures = function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end --[[ldx-- <p>We keep the extra kerns in separate kerning tables so that we can use @@ -524,208 +471,71 @@ them selectively.</p> -- we don't use the character database. (Ok, we can have a context specific -- variant). --- we can make them numbers - -local left = { - AEligature = "A", aeligature = "a", - OEligature = "O", oeligature = "o", - IJligature = "I", ijligature = "i", - AE = "A", ae = "a", - OE = "O", oe = "o", - IJ = "I", ij = "i", - Ssharp = "S", ssharp = "s", -} - -local right = { - AEligature = "E", aeligature = "e", - OEligature = "E", oeligature = "e", - IJligature = "J", ijligature = "j", - AE = "E", ae = "e", - OE = "E", oe = "e", - IJ = "J", ij = "j", - Ssharp = "S", ssharp = "s", -} - -local both = { - Acircumflex = "A", acircumflex = "a", - Ccircumflex = "C", ccircumflex = "c", - Ecircumflex = "E", ecircumflex = "e", - Gcircumflex = "G", gcircumflex = "g", - Hcircumflex = "H", hcircumflex = "h", - Icircumflex = "I", icircumflex = "i", - Jcircumflex = "J", jcircumflex = "j", - Ocircumflex = "O", ocircumflex = "o", - Scircumflex = "S", scircumflex = "s", - Ucircumflex = "U", ucircumflex = "u", - Wcircumflex = "W", wcircumflex = "w", - Ycircumflex = "Y", ycircumflex = "y", - - Agrave = "A", agrave = "a", - Egrave = "E", egrave = "e", - Igrave = "I", igrave = "i", - Ograve = "O", ograve = "o", - Ugrave = "U", ugrave = "u", - Ygrave = "Y", ygrave = "y", - - Atilde = "A", atilde = "a", - Itilde = "I", itilde = "i", - Otilde = "O", otilde = "o", - Utilde = "U", utilde = "u", - Ntilde = "N", ntilde = "n", - - Adiaeresis = "A", adiaeresis = "a", Adieresis = "A", adieresis = "a", - Ediaeresis = "E", ediaeresis = "e", Edieresis = "E", edieresis = "e", - Idiaeresis = "I", idiaeresis = "i", Idieresis = "I", idieresis = "i", - Odiaeresis = "O", odiaeresis = "o", Odieresis = "O", odieresis = "o", - Udiaeresis = "U", udiaeresis = "u", Udieresis = "U", udieresis = "u", - Ydiaeresis = "Y", ydiaeresis = "y", Ydieresis = "Y", ydieresis = "y", - - Aacute = "A", aacute = "a", - Cacute = "C", cacute = "c", - Eacute = "E", eacute = "e", - Iacute = "I", iacute = "i", - Lacute = "L", lacute = "l", - Nacute = "N", nacute = "n", - Oacute = "O", oacute = "o", - Racute = "R", racute = "r", - Sacute = "S", sacute = "s", - Uacute = "U", uacute = "u", - Yacute = "Y", yacute = "y", - Zacute = "Z", zacute = "z", - - Dstroke = "D", dstroke = "d", - Hstroke = "H", hstroke = "h", - Tstroke = "T", tstroke = "t", - - Cdotaccent = "C", cdotaccent = "c", - Edotaccent = "E", edotaccent = "e", - Gdotaccent = "G", gdotaccent = "g", - Idotaccent = "I", idotaccent = "i", - Zdotaccent = "Z", zdotaccent = "z", - - Amacron = "A", amacron = "a", - Emacron = "E", emacron = "e", - Imacron = "I", imacron = "i", - Omacron = "O", omacron = "o", - Umacron = "U", umacron = "u", - - Ccedilla = "C", ccedilla = "c", - Kcedilla = "K", kcedilla = "k", - Lcedilla = "L", lcedilla = "l", - Ncedilla = "N", ncedilla = "n", - Rcedilla = "R", rcedilla = "r", - Scedilla = "S", scedilla = "s", - Tcedilla = "T", tcedilla = "t", - - Ohungarumlaut = "O", ohungarumlaut = "o", - Uhungarumlaut = "U", uhungarumlaut = "u", - - Aogonek = "A", aogonek = "a", - Eogonek = "E", eogonek = "e", - Iogonek = "I", iogonek = "i", - Uogonek = "U", uogonek = "u", - - Aring = "A", aring = "a", - Uring = "U", uring = "u", - - Abreve = "A", abreve = "a", - Ebreve = "E", ebreve = "e", - Gbreve = "G", gbreve = "g", - Ibreve = "I", ibreve = "i", - Obreve = "O", obreve = "o", - Ubreve = "U", ubreve = "u", - - Ccaron = "C", ccaron = "c", - Dcaron = "D", dcaron = "d", - Ecaron = "E", ecaron = "e", - Lcaron = "L", lcaron = "l", - Ncaron = "N", ncaron = "n", - Rcaron = "R", rcaron = "r", - Scaron = "S", scaron = "s", - Tcaron = "T", tcaron = "t", - Zcaron = "Z", zcaron = "z", - - dotlessI = "I", dotlessi = "i", - dotlessJ = "J", dotlessj = "j", - - AEligature = "AE", aeligature = "ae", AE = "AE", ae = "ae", - OEligature = "OE", oeligature = "oe", OE = "OE", oe = "oe", - IJligature = "IJ", ijligature = "ij", IJ = "IJ", ij = "ij", - - Lstroke = "L", lstroke = "l", Lslash = "L", lslash = "l", - Ostroke = "O", ostroke = "o", Oslash = "O", oslash = "o", - - Ssharp = "SS", ssharp = "ss", - - Aumlaut = "A", aumlaut = "a", - Eumlaut = "E", eumlaut = "e", - Iumlaut = "I", iumlaut = "i", - Oumlaut = "O", oumlaut = "o", - Uumlaut = "U", uumlaut = "u", - -} - addkerns = function(rawdata) -- using shcodes is not robust here local descriptions = rawdata.descriptions local resources = rawdata.resources local unicodes = resources.unicodes local function do_it_left(what) - for unicode, description in next, descriptions do - local kerns = description.kerns - if kerns then - local extrakerns - for complex, simple in next, what do - complex = unicodes[complex] - simple = unicodes[simple] - if complex and simple then - local ks = kerns[simple] - if ks and not kerns[complex] then - if extrakerns then - extrakerns[complex] = ks - else - extrakerns = { [complex] = ks } + if what then + for unicode, description in next, descriptions do + local kerns = description.kerns + if kerns then + local extrakerns + for complex, simple in next, what do + complex = unicodes[complex] + simple = unicodes[simple] + if complex and simple then + local ks = kerns[simple] + if ks and not kerns[complex] then + if extrakerns then + extrakerns[complex] = ks + else + extrakerns = { [complex] = ks } + end end end end - end - if extrakerns then - description.extrakerns = extrakerns + if extrakerns then + description.extrakerns = extrakerns + end end end end end local function do_it_copy(what) - for complex, simple in next, what do - complex = unicodes[complex] - simple = unicodes[simple] - if complex and simple then - local complexdescription = descriptions[complex] - if complexdescription then -- optional - local simpledescription = descriptions[complex] - if simpledescription then - local extrakerns - local kerns = simpledescription.kerns - if kerns then - for unicode, kern in next, kerns do - if extrakerns then - extrakerns[unicode] = kern - else - extrakerns = { [unicode] = kern } + if what then + for complex, simple in next, what do + complex = unicodes[complex] + simple = unicodes[simple] + if complex and simple then + local complexdescription = descriptions[complex] + if complexdescription then -- optional + local simpledescription = descriptions[complex] + if simpledescription then + local extrakerns + local kerns = simpledescription.kerns + if kerns then + for unicode, kern in next, kerns do + if extrakerns then + extrakerns[unicode] = kern + else + extrakerns = { [unicode] = kern } + end end end - end - local extrakerns = simpledescription.extrakerns - if extrakerns then - for unicode, kern in next, extrakerns do - if extrakerns then - extrakerns[unicode] = kern - else - extrakerns = { [unicode] = kern } + local extrakerns = simpledescription.extrakerns + if extrakerns then + for unicode, kern in next, extrakerns do + if extrakerns then + extrakerns[unicode] = kern + else + extrakerns = { [unicode] = kern } + end end end - end - if extrakerns then - complexdescription.extrakerns = extrakerns + if extrakerns then + complexdescription.extrakerns = extrakerns + end end end end @@ -733,11 +543,11 @@ addkerns = function(rawdata) -- using shcodes is not robust here end end -- add complex with values of simplified when present - do_it_left(left) - do_it_left(both) + do_it_left(afm.helpdata.leftkerned) + do_it_left(afm.helpdata.bothkerned) -- copy kerns from simple char to complex char unless set - do_it_copy(both) - do_it_copy(right) + do_it_copy(afm.helpdata.bothkerned) + do_it_copy(afm.helpdata.rightkerned) end --[[ldx-- |