diff options
Diffstat (limited to 'otfl-font-otn.lua')
| -rw-r--r-- | otfl-font-otn.lua | 102 |
1 files changed, 57 insertions, 45 deletions
diff --git a/otfl-font-otn.lua b/otfl-font-otn.lua index af82649..e11e8d9 100644 --- a/otfl-font-otn.lua +++ b/otfl-font-otn.lua @@ -123,25 +123,27 @@ local random = math.random local logs, trackers, nodes, attributes = logs, trackers, nodes, attributes +local registertracker = trackers.register + local fonts = fonts local otf = fonts.handlers.otf -local trace_lookups = false trackers.register("otf.lookups", function(v) trace_lookups = v end) -local trace_singles = false trackers.register("otf.singles", function(v) trace_singles = v end) -local trace_multiples = false trackers.register("otf.multiples", function(v) trace_multiples = v end) -local trace_alternatives = false trackers.register("otf.alternatives", function(v) trace_alternatives = v end) -local trace_ligatures = false trackers.register("otf.ligatures", function(v) trace_ligatures = v end) -local trace_contexts = false trackers.register("otf.contexts", function(v) trace_contexts = v end) -local trace_marks = false trackers.register("otf.marks", function(v) trace_marks = v end) -local trace_kerns = false trackers.register("otf.kerns", function(v) trace_kerns = v end) -local trace_cursive = false trackers.register("otf.cursive", function(v) trace_cursive = v end) -local trace_preparing = false trackers.register("otf.preparing", function(v) trace_preparing = v end) -local trace_bugs = false trackers.register("otf.bugs", function(v) trace_bugs = v end) -local trace_details = false trackers.register("otf.details", function(v) trace_details = v end) -local trace_applied = false trackers.register("otf.applied", function(v) trace_applied = v end) -local trace_steps = false trackers.register("otf.steps", function(v) trace_steps = v end) -local trace_skips = false trackers.register("otf.skips", function(v) trace_skips = v end) -local trace_directions = false trackers.register("otf.directions", function(v) trace_directions = v end) +local trace_lookups = false registertracker("otf.lookups", function(v) trace_lookups = v end) +local trace_singles = false registertracker("otf.singles", function(v) trace_singles = v end) +local trace_multiples = false registertracker("otf.multiples", function(v) trace_multiples = v end) +local trace_alternatives = false registertracker("otf.alternatives", function(v) trace_alternatives = v end) +local trace_ligatures = false registertracker("otf.ligatures", function(v) trace_ligatures = v end) +local trace_contexts = false registertracker("otf.contexts", function(v) trace_contexts = v end) +local trace_marks = false registertracker("otf.marks", function(v) trace_marks = v end) +local trace_kerns = false registertracker("otf.kerns", function(v) trace_kerns = v end) +local trace_cursive = false registertracker("otf.cursive", function(v) trace_cursive = v end) +local trace_preparing = false registertracker("otf.preparing", function(v) trace_preparing = v end) +local trace_bugs = false registertracker("otf.bugs", function(v) trace_bugs = v end) +local trace_details = false registertracker("otf.details", function(v) trace_details = v end) +local trace_applied = false registertracker("otf.applied", function(v) trace_applied = v end) +local trace_steps = false registertracker("otf.steps", function(v) trace_steps = v end) +local trace_skips = false registertracker("otf.skips", function(v) trace_skips = v end) +local trace_directions = false registertracker("otf.directions", function(v) trace_directions = v end) local report_direct = logs.reporter("fonts","otf direct") local report_subchain = logs.reporter("fonts","otf subchain") @@ -149,15 +151,15 @@ local report_chain = logs.reporter("fonts","otf chain") local report_process = logs.reporter("fonts","otf process") local report_prepare = logs.reporter("fonts","otf prepare") -trackers.register("otf.verbose_chain", function(v) otf.setcontextchain(v and "verbose") end) -trackers.register("otf.normal_chain", function(v) otf.setcontextchain(v and "normal") end) +registertracker("otf.verbose_chain", function(v) otf.setcontextchain(v and "verbose") end) +registertracker("otf.normal_chain", function(v) otf.setcontextchain(v and "normal") end) -trackers.register("otf.replacements", "otf.singles,otf.multiples,otf.alternatives,otf.ligatures") -trackers.register("otf.positions","otf.marks,otf.kerns,otf.cursive") -trackers.register("otf.actions","otf.replacements,otf.positions") -trackers.register("otf.injections","nodes.injections") +registertracker("otf.replacements", "otf.singles,otf.multiples,otf.alternatives,otf.ligatures") +registertracker("otf.positions","otf.marks,otf.kerns,otf.cursive") +registertracker("otf.actions","otf.replacements,otf.positions") +registertracker("otf.injections","nodes.injections") -trackers.register("*otf.sample","otf.steps,otf.actions,otf.analyzing") +registertracker("*otf.sample","otf.steps,otf.actions,otf.analyzing") local insert_node_after = node.insert_after local delete_node = nodes.delete @@ -217,6 +219,8 @@ local registerotffeature = otffeatures.register local onetimemessage = fonts.loggers.onetimemessage +otf.defaultnodealternate = "none" -- first last + -- we share some vars here, after all, we have no nested lookups and -- less code @@ -416,7 +420,7 @@ function handlers.gsub_single(start,kind,lookupname,replacement) return start, true end -local function alternative_glyph(start,alternatives,kind,chainname,chainlookupname,lookupname) -- chainname and chainlookupname optional +local function set_alternative_glyph(start,alternatives,kind,chainname,chainlookupname,lookupname) -- chainname and chainlookupname optional -- needs checking: (global value, brrr) local value = featurevalue == true and tfmdata.shared.features[kind] or featurevalue local choice = nil @@ -434,7 +438,14 @@ local function alternative_glyph(start,alternatives,kind,chainname,chainlookupna if type(value) ~= "number" then value, choice = "default, choice 1", alternatives[1] elseif value > n then - value, choice = format("no %s variants, taking %s",value,n), alternatives[n] + local defaultalt = otf.defaultnodealternate + if defaultalt == "first" then + value, choice = format("no %s variants, taking %s",value,n), alternatives[n] + elseif defaultalt == "last" then + value, choice = format("no %s variants, taking %s",value,1), alternatives[1] + else + value, choice = format("no %s variants, ignoring",value), false + end elseif value == 0 then value, choice = format("choice %s (no change)",value), start.char elseif value < 1 then @@ -443,11 +454,23 @@ local function alternative_glyph(start,alternatives,kind,chainname,chainlookupna value, choice = format("choice %s",value), alternatives[value] end end - if not choice then - logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),value,gref(start.char)) - choice, value = start.char, format("no replacement instead of %s",value) + if trace_alternatives then + if choice then + logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),index) + else + logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),value,gref(start.char)) + end + end + if choice then + start.char = choice + if trace_alternatives then + logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),index) + end + else + if trace_alternatives then + logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),value,gref(start.char)) + end end - return choice, value end local function multiple_glyphs(start,multiple) -- marks ? @@ -478,11 +501,7 @@ local function multiple_glyphs(start,multiple) -- marks ? end function handlers.gsub_alternate(start,kind,lookupname,alternative,sequence) - local choice, index = alternative_glyph(start,alternative,kind,lookupname) - if trace_alternatives then - logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),index) - end - start.char = choice + set_alternative_glyph(start,alternative,kind,lookupname) return start, true end @@ -1094,17 +1113,10 @@ function chainprocs.gsub_alternate(start,stop,kind,chainname,currentcontext,look end else alternatives = alternatives[currentchar] - if not alternatives then - if trace_bugs then - logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar)) - end - else - local choice, index = alternative_glyph(current,alternatives,kind,chainname,chainlookupname,lookupname) - current.char = choice - if trace_alternatives then - logprocess("%s: replacing single %s by alternative %s (%s)", - cref(kind,chainname,chainlookupname,lookupname),index,gref(currentchar),gref(choice)) - end + if alternatives then + set_alternative_glyph(current,alternatives,kind,chainname,chainlookupname,lookupname) + elseif trace_bugs then + logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar)) end end return start, true |