--GregorioTeX Lua file. -- --Copyright (C) 2008-2016 The Gregorio Project (see CONTRIBUTORS.md) -- --This file is part of Gregorio. -- --Gregorio is free software: you can redistribute it and/or modify --it under the terms of the GNU General Public License as published by --the Free Software Foundation, either version 3 of the License, or --(at your option) any later version. -- --Gregorio is distributed in the hope that it will be useful, --but WITHOUT ANY WARRANTY; without even the implied warranty of --MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the --GNU General Public License for more details. -- --You should have received a copy of the GNU General Public License --along with Gregorio. If not, see . -- this file contains lua functions used by GregorioTeX when called with LuaTeX. local hpack, traverse, traverse_id, has_attribute, count, remove, insert_after, copy = node.hpack, node.traverse, node.traverse_id, node.has_attribute, node.count, node.remove, node.insert_after, node.copy gregoriotex = gregoriotex or {} local gregoriotex = gregoriotex local internalversion = '4.1.5' -- GREGORIO_VERSION (comment used by VersionManager.py) local err, warn, info, log = luatexbase.provides_module({ name = "gregoriotex", version = '4.1.5', -- GREGORIO_VERSION greinternalversion = internalversion, date = "2016/08/18", -- GREGORIO_DATE_LTX description = "GregorioTeX module.", author = "The Gregorio Project (see CONTRIBUTORS.md)", copyright = "2008-2016 - The Gregorio Project", license = "GPLv3+", }) gregoriotex.module = { err = err, warn = warn, info = info, log = log } local format = string.format local hlist = node.id('hlist') local vlist = node.id('vlist') local glyph = node.id('glyph') local glue = node.id('glue') local whatsit = node.id('whatsit') local hyphen = tex.defaulthyphenchar or 45 local dash_attr = luatexbase.attributes['gre@attr@dash'] local potentialdashvalue = 1 local nopotentialdashvalue = 2 local center_attr = luatexbase.attributes['gre@attr@center'] local startcenter = 1 local endcenter = 2 local glyph_id_attr = luatexbase.attributes['gre@attr@glyph@id'] local glyph_top_attr = luatexbase.attributes['gre@attr@glyph@top'] local glyph_bottom_attr = luatexbase.attributes['gre@attr@glyph@bottom'] local prev_line_id = nil local cur_score_id = nil local score_inclusion = {} local line_heights = nil local new_line_heights = nil local score_heights = nil local new_score_heights = nil local var_brace_positions = nil local new_var_brace_positions = nil local pos_saves = nil local new_pos_saves = nil local auxname = nil local space_below_staff = 5 local space_above_staff = 13 local score_fonts = {} local symbol_fonts = {} local loaded_font_sizes = {} local font_factors = {} local font_indexed = {} local next_variant = 0 local variant_prefix = 'gre@font@variant@' local number_to_letter = { ['0'] = 'A', ['1'] = 'B', ['2'] = 'C', ['3'] = 'D', ['4'] = 'E', ['5'] = 'F', ['6'] = 'G', ['7'] = 'H', ['8'] = 'I', ['9'] = 'J', } local capture_header_macro = {} local catcode_at_letter = luatexbase.catcodetables['gre@atletter'] local user_defined_subtype = node.subtype('user_defined') local create_marker = luatexbase.new_user_whatsit('marker', 'gregoriotex') local marker_whatsit_id = luatexbase.get_user_whatsit_id('marker', 'gregoriotex') local translation_mark = 1 local abovelinestext_mark = 2 log("marker whatsit id is %d", marker_whatsit_id) local function mark(value) local marker = create_marker() marker.type = 100 marker.value = value marker.attr = node.current_attr() node.write(marker) end local function mark_translation() mark(translation_mark) end local function mark_abovelinestext() mark(abovelinestext_mark) end local function is_mark(node, value) return node.id == whatsit and node.subtype == user_defined_subtype and node.user_id == marker_whatsit_id and node.value == value end local function keys_changed(tab1, tab2) if tab2 == nil then return true end local id,_ for id,_ in pairs(tab1) do if tab2[id] == nil then return true end end for id,_ in pairs(tab2) do if tab1[id] == nil then return true end end return false end local function heights_changed() local id, tab for id, tab in pairs(new_line_heights) do if keys_changed(tab, line_heights[id]) then return true end end for id, tab in pairs(line_heights) do if keys_changed(tab, new_line_heights[id]) then return true end end for id, tab in pairs(new_var_brace_positions) do if keys_changed(tab, var_brace_positions[id]) then return true end end for id, tab in pairs(var_brace_positions) do if keys_changed(tab, new_var_brace_positions[id]) then return true end end for id, tab in pairs(new_pos_saves) do if keys_changed(tab, pos_saves[id]) then return true end end for id, tab in pairs(pos_saves) do if keys_changed(tab, new_pos_saves[id]) then return true end end return false end local function write_greaux() if heights_changed() then -- only write this if heights change; since table ordering is not -- predictable, this ensures a steady state if the heights are unchanged. local aux = io.open(auxname, 'w') if aux then log("Writing %s", auxname) aux:write('return {\n ["line_heights"]={\n') local id, tab, id2, line for id, tab in pairs(new_line_heights) do aux:write(string.format(' ["%s"]={\n', id)) for id2, line in pairs(tab) do aux:write(string.format(' [%d]={%d,%d,%d,%d},\n', id2, line[1], line[2], line[3], line[4])) end aux:write(' },\n') end aux:write(' },\n ["var_brace_positions"]={\n') for id, tab in pairs(new_var_brace_positions) do aux:write(string.format(' ["%s"]={\n', id)) for id2, line in pairs(tab) do if line[1] ~= nil and line[2] ~= nil then aux:write(string.format(' [%d]={%d,%d},\n', id2, line[1], line[2])) end end aux:write(' },\n') end aux:write(' },\n ["pos_saves"]={\n') for id, tab in pairs(new_pos_saves) do aux:write(string.format(' ["%s"]={\n', id)) for id2, line in pairs(tab) do if line[1] ~= nil and line[2] ~= nil and line[3] ~= nil and line[4] ~= nil then aux:write(string.format(' [%d]={%d,%d,%d,%d},\n', id2, line[1], line[2], line[3], line[4])) end end aux:write(' },\n') end aux:write(' },\n}\n') aux:close() else err("\n Unable to open %s", auxname) end warn("Line heights or variable brace lengths may have changed. Rerun to fix.") end end local function init(arg, enable_height_computation) -- is there a better way to get the output directory? local outputdir = nil for k,v in pairs(arg) do if v:find('%-output%-directory') then if v:find('%-output%-directory=') then outputdir=string.explode(v, '=')[2] else outputdir=arg[tonumber(k)+1] end end end if outputdir and lfs.isdir(outputdir) then auxname = outputdir..'/'..tex.jobname..'.gaux' else auxname = tex.jobname..'.gaux' end -- to get latexmk to realize the aux file is a dependency texio.write_nl('('..auxname..')') if lfs.isfile(auxname) then log("Reading %s", auxname) local score_info = dofile(auxname) line_heights = score_info.line_heights or {} var_brace_positions = score_info.var_brace_positions or {} pos_saves = score_info.pos_saves or {} else line_heights = {} var_brace_positions = {} pos_saves = {} end if enable_height_computation then new_line_heights = {} local mcb_version = luatexbase.get_module_version and luatexbase.get_module_version('luatexbase-mcb') or 9999 if mcb_version and mcb_version > 0.6 then luatexbase.add_to_callback('finish_pdffile', write_greaux, 'gregoriotex.write_greaux') else -- The version of luatexbase in TeX Live 2014 does not support it, and -- luatexbase prevents a direct call to callback.register. Because of -- this, we lose the LuaTeX statistics and "output written to" messages, -- but I know of no other workaround. luatexbase.add_to_callback('stop_run', write_greaux, 'gregoriotex.write_greaux') end else warn('Height computation has been skipped. Gregorio will use '.. 'previously computed values if available but will not recompute '.. 'line heights. Remove or undefine \\greskipheightcomputation to '.. 'resume height computation.') end new_var_brace_positions = {} new_pos_saves = {} end -- node factory local tmpnode = node.new(glyph, 0) tmpnode.font = 0 tmpnode.char = hyphen local function gethyphennode() return copy(tmpnode) end local function getdashnnode() local hyphnode = gethyphennode() local dashnode = hpack(hyphnode) dashnode.shift = 0 return dashnode,hyphnode end -- a simple (for now) function to dump nodes for debugging local function dump_nodes(head) local n, m for n in traverse(head) do if node.type(n.id) == 'penalty' then log("%s=%d {%d}", node.type(n.id), n.penalty, has_attribute(n, glyph_id_attr)) elseif n.id == whatsit and n.subtype == user_defined_subtype and n.user_id == marker_whatsit_id then log("marker-whatsit %s", n.value) else log("node %s [%d] {%d}", node.type(n.id), n.subtype, has_attribute(n, glyph_id_attr)) end if n.id == hlist then for m in traverse(n.head) do if node.type(m.id) == 'penalty' then log("..%s=%d {%d}", node.type(m.id), m.penalty, has_attribute(n, glyph_id_attr)) elseif m.id == whatsit and m.subtype == user_defined_subtype and m.user_id == marker_whatsit_id then log("..marker-whatsit %s", m.value) else log("..node %s [%d] {%d}", node.type(m.id), m.subtype, has_attribute(n, glyph_id_attr)) end end end end log('--end dump--') end -- helper function for center_translation() local function get_first_node_by_id(id, head) for n in traverse_id(id, head) do return n end end local function center_translation(startnode, endnode, ratio, sign, order) -- total width between beginning the two centering points local total_width = node.dimensions(ratio, sign, order, startnode, endnode) -- definition of translation with a beginning is: -- \hbox to 0pt{ -- \kern 0pt -- \vbox to 0pt{ -- \vss\hbox to 0pt{ -- translation\hss -- } -- } -- \kern 0pt -- } -- -- While normally we could use startnode.head.next.head.next.head -- to reach the translation (glyph node), packages such as LuaTeX-ja -- may have, for example, prepended a whatsit node to each list -- to store e.g. text direction, moving our translation glyph node to -- startnode.head.next.next.head.next.next.head.next instead. -- -- To avoid unpleasant surprises, let's search for each desired node -- by its type: local vlistnode = get_first_node_by_id(vlist, startnode.head) local hlistnode = get_first_node_by_id(hlist, vlistnode.head) local glyphnode = get_first_node_by_id(glyph, hlistnode.head) -- hence translation width is: local trans_width = node.dimensions(glyphnode) -- now we must transform the kern 0pt into kern Xpt and kern -Xpt where X is: local X = (total_width - trans_width) / 2 vlistnode.prev.kern = X vlistnode.next.kern = -X end local debug_types_activated = {['linesglues'] = false} local function set_debug_string(debugstring) for debugtype in string.gmatch(debugstring, "[^,]+") do debug_types_activated[debugtype] = true end end local glue_sign_name = {[0] = 'normal', [1] = 'stretching', [2] = 'shrinking'} local function debugmessage(type, message) if (debug_types_activated[type] or debug_types_activated['all']) then texio.write_nl('GregorioTeX debug: ('..type..'): '..message) end end -- in each function we check if we really are inside a score, -- which we can see with the dash_attr being set or not local function process (h, groupcode, glyphes) -- TODO: to be changed according to the font local lastseennode = nil local adddash = false local currentfont = 0 local currentshift = 0 local centerstartnode = nil local line_id = nil local line_top = nil local line_bottom = nil local line_has_translation = false local line_has_abovelinestext = false local linenum = 0 -- we explore the lines for line in traverse(h) do if line.id == glue then if line.next ~= nil and line.next.id == hlist and has_attribute(line.next, dash_attr) and count(hlist, line.next.head) <= 2 then --log("eating glue") h, line = remove(h, line) end elseif line.id == hlist and has_attribute(line, dash_attr) then -- the next two lines are to remove the dumb lines if count(hlist, line.head) <= 2 then --log("eating line") h, line = remove(h, line) else linenum = linenum + 1 debugmessage('linesglues', format('line %d: %s factor %d%%', linenum, glue_sign_name[line.glue_sign], line.glue_set*100)) centerstartnode = nil line_id = nil line_top = nil line_bottom = nil line_has_translation = false line_has_abovelinestext = false for n in traverse_id(hlist, line.head) do if has_attribute(n, center_attr, startcenter) then centerstartnode = n elseif has_attribute(n, center_attr, endcenter) then if not centerstartnode then warn("End of a translation centering area encountered on a\nline without translation centering beginning,\nskipping translation...") else center_translation(centerstartnode, n, line.glue_set, line.glue_sign, line.glue_order) end elseif has_attribute(n, dash_attr, potentialdashvalue) then adddash=true lastseennode=n currentfont = 0 -- we traverse the list, to detect the font to use, -- and also not to add an hyphen if there is already one for g in node.traverse_id(glyph, n.head) do if currentfont == 0 then currentfont = g.font end if g.char == hyphen or g.char == 45 then adddash = false end end if currentshift == 0 then currentshift = n.shift end -- if we encounter a text that doesn't need a dash, we acknowledge it elseif has_attribute(n, dash_attr, nopotentialdashvalue) then adddash=false end if new_score_heights then local glyph_id = has_attribute(n, glyph_id_attr) local glyph_top = has_attribute(n, glyph_top_attr) or 9 -- 'g' local glyph_bottom = has_attribute(n, glyph_bottom_attr) or 9 -- 'g' if glyph_id and glyph_id > prev_line_id then if not line_id or glyph_id > line_id then line_id = glyph_id end if not line_top or glyph_top > line_top then line_top = glyph_top end if not line_bottom or glyph_bottom < line_bottom then line_bottom = glyph_bottom end end end end -- look for marks if new_score_heights then for n in traverse_id(whatsit, line.head) do line_has_translation = line_has_translation or is_mark(n, translation_mark) line_has_abovelinestext = line_has_abovelinestext or is_mark(n, abovelinestext_mark) end end if adddash==true then local dashnode, hyphnode = getdashnnode() dashnode.shift = currentshift hyphnode.font = currentfont insert_after(line.head, lastseennode, dashnode) addash=false end if line_id then new_score_heights[prev_line_id] = { line_top, line_bottom, line_has_translation and 1 or 0, line_has_abovelinestext and 1 or 0 } prev_line_id = line_id end end -- we reinitialize the shift value, because it may change according to the line currentshift=0 end end --dump_nodes(h) -- due to special cases, we don't return h here (see comments in bug #20974) return true end -- In gregoriotex, hyphenation is made by the process function, so TeX hyphenation -- is just a waste of time. This function will be registered in the hyphenate -- callback to skip this step and thus gain a little time. local function disable_hyphenation() return false end local function atScoreBeginning (score_id, top_height, bottom_height, has_translation, has_above_lines_text, top_height_adj, bottom_height_adj) local inclusion = score_inclusion[score_id] or 1 score_inclusion[score_id] = inclusion + 1 score_id = score_id..'.'..inclusion cur_score_id = score_id if (top_height > top_height_adj or bottom_height < bottom_height_adj or has_translation ~= 0 or has_above_lines_text ~= 0) and tex.count['gre@variableheightexpansion'] == 1 then score_heights = line_heights[score_id] or {} if new_line_heights then new_score_heights = {} new_line_heights[score_id] = new_score_heights end prev_line_id = tex.getattribute(glyph_id_attr) else score_heights = nil new_score_heights = nil end luatexbase.add_to_callback('post_linebreak_filter', process, 'gregoriotex.callback', 1) luatexbase.add_to_callback("hyphenate", disable_hyphenation, "gregoriotex.disable_hyphenation", 1) end local function atScoreEnd () luatexbase.remove_from_callback('post_linebreak_filter', 'gregoriotex.callback') luatexbase.remove_from_callback("hyphenate", "gregoriotex.disable_hyphenation") end local function clean_old_gtex_files(file_withdir) local filename = "" local dirpath = "" local sep = "" local onwindows = os.type == "windows" or string.find(os.getenv("PATH"),";",1,true) if onwindows then sep = "\\" dirpath = string.match(file_withdir, "(.*)"..sep) else sep = "/" dirpath = string.match(file_withdir, "(.*)"..sep) end if dirpath then -- dirpath is nil if current directory filename = "^"..file_withdir:match(".*/".."(.*)").."%-%d+_%d+_%d+[-%a%d]*%.gtex$" for a in lfs.dir(dirpath) do if a:match(filename) then os.remove(dirpath..sep..a) end end else filename = "^"..file_withdir.."%-%d+_%d+_%d+[-%a%d]*%.gtex$" for a in lfs.dir(lfs.currentdir()) do if a:match(filename) then os.remove(a) end end end end local function compile_gabc(gabc_file, gtex_file) info("compiling the score %s...", gabc_file) local extra_args = '' if tex.count['gre@generate@pointandclick'] == 1 then extra_args = ' -p' end res = os.execute(string.format("gregorio %s -o %s %s", extra_args, gtex_file, gabc_file)) if res == nil then err("\nSomething went wrong when executing\n 'gregorio -o %s %s'.\n" .."shell-escape mode may not be activated. Try\n\n%s --shell-escape %s.tex\n\nSee the documentation of gregorio or your TeX\ndistribution to automatize it.", gtex_file, gabc_file, tex.formatname, tex.jobname) elseif res ~= 0 then err("\nAn error occured when compiling the score file\n'%s' with gregorio.\nPlease check your score file.", gabc_file) else -- open the gtex file for writing so that LuaTeX records output to it -- when the -recorder option is used local gtex = io.open(gtex_file, 'a') if gtex == nil then err("\n Unable to open %s", gtex_file) else gtex:close() end end end local function include_score(input_file, force_gabccompile) local file_root if string.match(input_file:sub(-5), '%.gtex') then file_root = input_file:sub(1,-6) elseif string.match(input_file:sub(-4), '%.tex') then file_root = input_file:sub(1,-5) elseif string.match(input_file:sub(-5), '%.gabc') then file_root = input_file:sub(1,-6) elseif not file_root then file_root = input_file end local gtex_file = file_root.."-"..internalversion:gsub("%.", "_")..".gtex" local gabc_file = file_root..".gabc" if not lfs.isfile(gtex_file) then clean_old_gtex_files(file_root) log("The file %s does not exist. Searching for a gabc file", gtex_file) if lfs.isfile(gabc_file) then local gabc = io.open(gabc_file, 'r') if gabc == nil then err("\n Unable to open %s", gabc_file) return else gabc:close() end compile_gabc(gabc_file, gtex_file) tex.print(string.format([[\input %s\relax]], gtex_file)) return else err("The file %s does not exist.", gabc_file) return end end local gtex_timestamp = lfs.attributes(gtex_file).modification local gabc_timestamp = lfs.attributes(gabc_file).modification -- open the gabc file for reading so that LuaTeX records input from it -- when the -recorder option is used; do this here so that this happens -- on every run local gabc = io.open(gabc_file, 'r') if gabc == nil then err("\n Unable to open %s", gabc_file) else gabc:close() end if gtex_timestamp < gabc_timestamp then log("%s has been modified and %s needs to be updated. Recompiling the gabc file.", gabc_file, gtex_file) compile_gabc(gabc_file, gtex_file) elseif force_gabccompile then compile_gabc(gabc_file, gtex_file) end tex.print(string.format([[\input %s\relax]], gtex_file)) return end local function direct_gabc(gabc, header) tmpname = os.tmpname() local f = io.open(tmpname, 'w') -- trims spaces on both ends (trim6 from http://lua-users.org/wiki/StringTrim) gabc = gabc:match('^()%s*$') and '' or gabc:match('^%s*(.*%S)') f:write('name:direct-gabc;\n'..(header or '')..'\n%%\n'..gabc:gsub('\\par ', '\n')) f:close() local p = io.popen('gregorio -S '..tmpname, 'r') if p == nil then err("\nSomething went wrong when executing\n gregorio -S "..tmpname..".\n" .."shell-escape mode may not be activated. Try\n\n%s --shell-escape %s.tex\n\nSee the documentation of gregorio or your TeX\ndistribution to automatize it.", tex.formatname, tex.jobname) end tex.print(p:read("*a"):explode('\n')) p:close() os.remove(tmpname) end local function get_gregorioversion() return internalversion end local get_font_by_id = font.getfont --- cached, indexes fonts.hashes.identifiers local font_id = font.id -- an "unsafe" version of get_font_by_id that can see all fonts -- LuaTeX can see, which is needed when we need the font size of -- the user-selected current font local function unsafe_get_font_by_id(id) return get_font_by_id(id) or font.fonts[id] end -- get_font_by_name(name) -- Look up a font identifier in the -- ``score_fonts`` table. Returns the id of the font if found, -1 -- otherwise. local function get_font_by_name(name) local id = font_id(name) return id >= 0 and get_font_by_id(id) end -- get_score_font_id(name) -- Look up a font identifier in the -- ``score_fonts`` table. Returns the id of the font if found, -1 -- otherwise. local function get_score_font_id(name) local sfnt = score_fonts[name] if sfnt then return font_id(sfnt) end return -1 end local resource_dummy = { unicodes = { } } -- get_font_resources(number) -- Retrieve the resource table -- associated with a font id. Always returns a Lua table value whose -- ``unicodes`` field is indexable. local function get_font_resources(id) local fnt = get_font_by_id(id) if fnt then return fnt.resources or resource_dummy end return resource_dummy end -- get_score_font_resources(string) -- Retrieve the resource table -- belonging to a font in the ``score_font`` table. Always returns -- a table whose ``unicodes`` field is indexable. local function get_score_font_resources(name) return get_font_resources(get_score_font_id(name)) end local function get_score_font_unicode_pairs(name) local unicodes = get_score_font_resources(name).unicodes if not font_indexed[name] then -- The unicodes table may be lazy-loaded, so iterating it may not -- return everything. Attempting to retrieve the code point of a -- glyph that has not already been loaded will trigger the __index -- method in the metatable (implemented by the fontloader) to load -- the table until the glyph is found. When iterating the -- unicodes, we want the whole table to be filled, so we try to -- access a non-existing glyph in order to force load the entire -- table. local ignored = unicodes['_this_is_hopefully_a_nonexistent_glyph_'] font_indexed[name] = true end return pairs(unicodes) end local function check_font_version() local gregoriofont = get_font_by_name('gre@font@music') if gregoriofont then local fontversion = gregoriofont.shared.rawdata.metadata.version if fontversion and string.match(fontversion, "%d+%.%d+%.%d+") ~= string.match(internalversion, "%d+%.%d+%.%d+") then local fontname = gregoriofont.shared.rawdata.metadata.fontname err("\nUncoherent file versions!\ngregoriotex.tex is version %s\nwhile %s.ttf is version %s\nplease reinstall one so that the\nversions match", string.match(internalversion, "%d+%.%d+%.%d+"), fontname, string.match(fontversion, "%d+%.%d+%.%d+")) end end end local function map_font(name, prefix) log("Mapping font %s", name) local glyph, unicode for glyph, unicode in get_score_font_unicode_pairs(name) do if unicode >= 0 and not string.match(glyph, '%.') then log("Setting \\Gre%s%s to \\char%d", prefix, glyph, unicode) tex.sprint(catcode_at_letter, string.format( [[\xdef\Gre%s%s{\char%d}]], prefix, glyph, unicode)) end end end local function init_variant_font(font_name, for_score, gre_factor) if font_name ~= '*' then local font_table = for_score and score_fonts or symbol_fonts if font_table[font_name] == nil then local font_csname = variant_prefix..string.gsub(tostring(next_variant), '[0-9]', number_to_letter) font_table[font_name] = font_csname log("Registering variant font %s as %s.", font_name, font_csname) if for_score then tex.print(catcode_at_letter, string.format( [[\global\font\%s = {name:%s} at 10 sp\relax ]], font_csname, font_name)) -- loaded_font_sizes will only be given a value if the font is for_score loaded_font_sizes[font_name] = {size = '10', gre_factor = gre_factor} if font_factors[font_name] == nil then font_factors[font_name] = '100000' end else -- is there a nice way to make this string readable? tex.print(catcode_at_letter, string.format( [[\gdef\%sSymReload#1{{\edef\localsize{#1}\ifx\localsize\%sSymSize\relax\relax\else\global\font\%s = {name:%s} at \localsize pt\relax\xdef\%sSymSize{\localsize}\fi}}\xdef\%sSymSize{0}\%sSymReload{\gre@symbolfontsize}]], font_csname, font_csname, font_csname, font_name, font_csname, font_csname, font_csname)) end next_variant = next_variant + 1 end end end local function set_score_glyph(csname, font_csname, char) log([[Setting \%s to \%s\char%d]], csname, font_csname, char) tex.print(catcode_at_letter, string.format( [[\edef\%s{{\noexpand\%s\char%d}}]], csname, font_csname, char)) end local function set_common_score_glyph(csname, font_csname, char) -- font_csname is ignored log([[Setting \%s to \char%d]], csname, char) tex.print(catcode_at_letter, string.format( [[\edef\%s{{\char%d}}]], csname, char)) end local function set_symbol_glyph(csname, font_csname, char) tex.print(catcode_at_letter, string.format( [[\def\%s{\%sSymReload{\gre@symbolfontsize}{\%s\char%d}\relax}]], csname, font_csname, font_csname, char)) end local function set_sized_symbol_glyph(csname, font_csname, char) tex.print(catcode_at_letter, string.format( [[\gdef\%s#1{\%sSymReload{#1}{\%s\char%d}\relax}]], csname, font_csname, font_csname, char)) end local function def_glyph(csname, font_name, glyph, font_table, setter) local font_csname = font_table[font_name] local char if string.match(glyph, '^%d+$') then char = tonumber(glyph) else local fid = font_id(font_csname) if fid < 0 then err('\nFont %s is not defined.', font_name) end char = get_font_resources(fid).unicodes[glyph] if char == nil then err('\nGlyph %s in font %s was not found.', glyph, font_name) end end setter(csname, font_csname, char) end local function change_single_score_glyph(glyph_name, font_name, replacement) if font_name == '*' then def_glyph('GreCP'..glyph_name, 'greciliae', replacement, score_fonts, set_common_score_glyph) else def_glyph('GreCP'..glyph_name, font_name, replacement, score_fonts, set_score_glyph) end end local function change_score_glyph(glyph_name, font_name, replacement) if string.match(glyph_name, '%*') then glyph_name = '^'..glyph_name:gsub('%*', '.*')..'$' if not string.match(replacement, '^%.') then err('If a wildcard is supplied for glyph name, replacement must start with a dot.') end local other_font if font_name == '*' then other_font = get_score_font_resources('greciliae').unicodes else other_font = get_score_font_resources(font_name).unicodes end local name, char for name, char in get_score_font_unicode_pairs('greciliae') do if not string.match(name, '%.') and char >= 0 and string.match(name, glyph_name) then local matched_replacement = name..replacement if other_font[matched_replacement] ~= nil and other_font[matched_replacement] >= 0 then change_single_score_glyph(name, font_name, matched_replacement) end end end else if string.match(replacement, '^%.') then replacement = glyph_name..replacement end change_single_score_glyph(glyph_name, font_name, replacement) end end local function reset_score_glyph(glyph_name) if string.match(glyph_name, '%*') then glyph_name = '^'..glyph_name:gsub('%*', '.*')..'$' local name, char for name, char in get_score_font_unicode_pairs('greciliae') do if not string.match(name, '%.') and char >= 0 and string.match(name, glyph_name) then set_common_score_glyph('GreCP'..name, nil, char) end end else local char = get_score_font_resources("greciliae").unicodes[glyph_name] if char == nil then err('\nGlyph %s was not found.', glyph_name) end set_common_score_glyph('GreCP'..glyph_name, nil, char) end end local function set_font_factor(font_name, font_factor) font_factors[font_name] = font_factor end local function scale_score_fonts(size, gre_factor) for font_name, font_csname in pairs(score_fonts) do if loaded_font_sizes[font_name] and font_factors[font_name] and loaded_font_sizes[font_name].size ~= gre_factor * font_factors[font_name] then tex.print(catcode_at_letter, string.format( [[\global\font\%s = {name:%s} at %s sp\relax ]], font_csname, font_name, gre_factor * font_factors[font_name])) loaded_font_sizes[font_name] = {size = size, gre_factor = gre_factor} end end end local function def_symbol(csname, font_name, glyph, sized) def_glyph(csname, font_name, glyph, symbol_fonts, sized and set_sized_symbol_glyph or set_symbol_glyph) end local function font_size() tex.print(string.format('%.2f', (unsafe_get_font_by_id(font.current()).size / 65536.0))) end local function adjust_line_height(inside_discretionary) if score_heights then local heights = score_heights[tex.getattribute(glyph_id_attr)] if heights then tex.sprint(catcode_at_letter, string.format( [[\gre@calculate@additionalspaces{%d}{%d}{%d}{%d}]], heights[1], heights[2], heights[3], heights[4])) if inside_discretionary == 0 then tex.sprint(catcode_at_letter, [[\gre@updateleftbox ]]) end end end end local function var_brace_note_pos(brace, start_end) tex.print(catcode_at_letter, string.format([[\luatexlatelua{gregoriotex.late_brace_note_pos('%s', %d, %d, \number\gre@lastxpos)}]], cur_score_id, brace, start_end)) end local function late_brace_note_pos(score_id, brace, start_end, pos) if new_var_brace_positions[score_id] == nil then new_var_brace_positions[score_id] = {} end if new_var_brace_positions[score_id][brace] == nil then new_var_brace_positions[score_id][brace] = {} end new_var_brace_positions[score_id][brace][start_end] = pos end local function var_brace_len(brace) if var_brace_positions[cur_score_id] ~= nil then if var_brace_positions[cur_score_id][brace] ~= nil then local posend = var_brace_positions[cur_score_id][brace][2] local posstart = var_brace_positions[cur_score_id][brace][1] if posend > posstart then tex.print(string.format('%dsp', posend - posstart)) else warn('Dynamically sized braces spanning multiple lines unsupported, using length 2mm.') tex.print('2mm') end return end end tex.print('2mm') end local function save_pos(index, which) tex.print(catcode_at_letter, string.format([[\gre@savepos\luatexlatelua{gregoriotex.late_save_pos('%s', %d, %d, \number\gre@lastxpos, \number\gre@lastypos)}]], cur_score_id, index, which)) end local function late_save_pos(score_id, index, which, xpos, ypos) if new_pos_saves[score_id] == nil then new_pos_saves[score_id] = {} end if new_pos_saves[score_id][index] == nil then new_pos_saves[score_id][index] = {} end new_pos_saves[score_id][index][(2 * which) - 1] = xpos new_pos_saves[score_id][index][2 * which] = ypos end -- this function is meant to be used from \ifcase; prints 0 for true and 1 for false local function is_ypos_different(index) if pos_saves[cur_score_id] ~= nil then local saved_pos = pos_saves[cur_score_id][index] if saved_pos == nil or saved_pos[2] == saved_pos[4] then tex.sprint([[\number1\relax ]]) else tex.sprint([[\number0\relax ]]) end else tex.sprint([[\number1\relax ]]) end end local function width_to_bp(width, value_if_star) if width == '*' then tex.print(value_if_star or '0') else tex.print(tex.sp(width) * 1.00375 / 65536) end end -- computes the hypotenuse given the width and height of the right triangle local function hypotenuse(width, height) log("width %s height %s", width, height) local a = tex.sp(width) local b = tex.sp(height) tex.sprint(math.sqrt((a * a) + (b * b)) .. 'sp') end -- computes the rotation angle opposite the height of a right triangle local function rotation(width, height) local a = tex.sp(width) local b = tex.sp(height) tex.sprint(math.deg(math.atan2(b, a))) end local function scale_space(factor) local skip = tex.getskip('gre@skip@temp@four') skip.width = skip.width * factor tex.setskip('gre@skip@temp@four',skip) -- should skip.stretch and skip.shink also be scaled? end local function set_header_capture(header, macro_name, flags) if macro_name == '' then capture_header_macro[header] = nil log("no longer capturing header %s", header) else local macro = {} macro.name = macro_name flags:gsub("([^,]+)", function(flag) if flag == "string" then macro.takes_string = true elseif flag == "name" then macro.takes_header_name = true else err("unknown header capture flag: %s", flag) end end) capture_header_macro[header] = macro log("capturing header %s using %s, string=%s, name=%s", header, macro.name, macro.takes_string, macro.takes_header_name) end end local function capture_header(header, value) local macro = capture_header_macro[header] if macro ~= nil then tex.sprint(string.format([[\%s{]], macro.name)) if macro.takes_header_name then tex.sprint(-2, header) tex.sprint('}{') end if macro.takes_string then tex.sprint(-2, value) else tex.sprint(value) end tex.print('}') end end local function mode_part(part) if part ~= '' then if not unicode.utf8.match(part, '^%p') then tex.sprint([[\thinspace]]) end tex.print(part) end end gregoriotex.number_to_letter = number_to_letter gregoriotex.init = init gregoriotex.include_score = include_score gregoriotex.atScoreEnd = atScoreEnd gregoriotex.atScoreBeginning = atScoreBeginning gregoriotex.check_font_version = check_font_version gregoriotex.get_gregorioversion = get_gregorioversion gregoriotex.map_font = map_font gregoriotex.init_variant_font = init_variant_font gregoriotex.change_score_glyph = change_score_glyph gregoriotex.reset_score_glyph = reset_score_glyph gregoriotex.scale_score_fonts = scale_score_fonts gregoriotex.set_font_factor = set_font_factor gregoriotex.def_symbol = def_symbol gregoriotex.font_size = font_size gregoriotex.direct_gabc = direct_gabc gregoriotex.adjust_line_height = adjust_line_height gregoriotex.var_brace_len = var_brace_len gregoriotex.var_brace_note_pos = var_brace_note_pos gregoriotex.late_brace_note_pos = late_brace_note_pos gregoriotex.mark_translation = mark_translation gregoriotex.mark_abovelinestext = mark_abovelinestext gregoriotex.width_to_bp = width_to_bp gregoriotex.hypotenuse = hypotenuse gregoriotex.rotation = rotation gregoriotex.scale_space = scale_space gregoriotex.set_header_capture = set_header_capture gregoriotex.capture_header = capture_header gregoriotex.save_pos = save_pos gregoriotex.late_save_pos = late_save_pos gregoriotex.is_ypos_different = is_ypos_different gregoriotex.mode_part = mode_part gregoriotex.set_debug_string = set_debug_string dofile(kpse.find_file('gregoriotex-nabc.lua', 'lua')) dofile(kpse.find_file('gregoriotex-signs.lua', 'lua')) dofile(kpse.find_file('gregoriotex-symbols.lua', 'lua'))