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|
#!/usr/bin/env texlua
-----------------------------------------------------------------------
-- FILE: luaotfload-tool.lua
-- DESCRIPTION: database functionality
-- REQUIREMENTS: luaotfload 2.5
-- AUTHOR: Khaled Hosny, Élie Roux, Philipp Gesang
-- VERSION: 2.5
-- LICENSE: GPL v2.0
-- MODIFIED: 2014-01-14 13:17:04+0100
-----------------------------------------------------------------------
luaotfload = luaotfload or { }
local version = "2.5" --- <int: major>.<int: minor>-<int: fixes>
luaotfload.version = version
luaotfload.self = "luaotfload-tool"
--[[doc--
luaotfload-tool(1)
This file was originally written (as \fileent{mkluatexfontdb.lua}) by
Elie Roux and Khaled Hosny and, as a derived work of ConTeXt, is
provided under the terms of the GPL v2.0 license as printed in full
text in the manual (luaotfload.pdf).
\url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html}.
This file is a wrapper for the luaotfload font names module
(luaotfload-database.lua). It is part of the luaotfload bundle, please
see the luaotfload documentation for more info. Report bugs to
\url{https://github.com/lualatex/luaotfload/issues}.
--doc]]--
kpse.set_program_name "luatex"
--[[doc--
We test for Lua 5.1 by means of capability detection to see if
we’re running an outdated Luatex. If so, we bail.
\url{http://lua-users.org/wiki/LuaVersionCompatibility}
--doc]]--
local iowrite = io.write
local kpsefind_file = kpse.find_file
local mathfloor = math.floor
local next = next
local osdate = os.date
local ostype = os.type
local stringexplode = string.explode
local stringformat = string.format
local stringlower = string.lower
local stringrep = string.rep
local tableconcat = table.concat
local texiowrite_nl = texio.write_nl
local texiowrite = texio.write
local tonumber = tonumber
local type = type
local runtime
if _G.getfenv ~= nil then -- 5.1 or LJ
if _G.jit ~= nil then
runtime = { "jit", jit.version }
else
runtime = { "stock", _VERSION }
print "FATAL ERROR"
print "Luaotfload requires a Luatex version >=0.76."
print "Please update your TeX distribution!"
os.exit (-1)
end
else -- 5.2
runtime = { "stock", _VERSION }
end
local C, Ct, P, S = lpeg.C, lpeg.Ct, lpeg.P, lpeg.S
local lpegmatch = lpeg.match
local loader_file = "luatexbase.loader.lua"
local loader_path = assert(kpsefind_file(loader_file, "lua"),
"File '"..loader_file.."' not found")
string.quoted = string.quoted or function (str)
return string.format("%q",str)
end
require(loader_path)
config = config or { }
local config = config
local luaotfloadconfig = config.luaotfload or { }
config.luaotfload = luaotfloadconfig
luaotfloadconfig.bisect = false
luaotfloadconfig.version = luaotfloadconfig.version or version
luaotfloadconfig.names_dir = luaotfloadconfig.names_dir or "names"
luaotfloadconfig.cache_dir = luaotfloadconfig.cache_dir or "fonts"
luaotfloadconfig.index_file = luaotfloadconfig.index_file
or "luaotfload-names.lua"
luaotfloadconfig.formats = luaotfloadconfig.formats
or "otf,ttf,ttc,dfont"
luaotfloadconfig.reload = false
if not luaotfloadconfig.strip then
luaotfloadconfig.strip = true
end
config.lualibs = config.lualibs or { }
config.lualibs.verbose = false
config.lualibs.prefer_merged = true
config.lualibs.load_extended = true
require "lualibs"
local iosavedata = io.savedata
local lfsisdir = lfs.isdir
local lfsisfile = lfs.isfile
local stringsplit = string.split
local tableserialize = table.serialize
local tabletohash = table.tohash
--[[doc--
\fileent{luatex-basics-gen.lua} calls functions from the
\luafunction{texio.*} library; too much for our taste.
We intercept them with dummies.
Also, it sets up dummies in place of the tables created by the Context
libraries. Since we have loaded the lualibs already this would cause
collateral damage for some libraries whose namespace would be
overridden. We employ our usual backup-restore strategy to work around
this. (Postponing the loading of the lualibs code is not an option
because the functionality is needed by basics-gen itself.)
--doc]]--
local dummy_function = function ( ) end
local backup = {
write = texio.write,
write_nl = texio.write_nl,
utilities = utilities,
}
texio.write, texio.write_nl = dummy_function, dummy_function
require"luaotfload-basics-gen.lua"
texio.write, texio.write_nl = backup.write, backup.write_nl
utilities = backup.utilities
require"luaotfload-log.lua" --- this populates the luaotfload.log.* namespace
require"luaotfload-parsers" --- fonts.conf, configuration, and request syntax
require"luaotfload-configuration" --- configuration file handling
require"luaotfload-database"
require"alt_getopt"
local names = fonts.names
local status_file = "luaotfload-status"
local luaotfloadstatus = require (status_file)
luaotfloadconfig.status = luaotfloadstatus
local sanitize_fontname = names.sanitize_fontname
local log = luaotfload.log
local report = log.report
local pathdata = names.path
local names_plain = pathdata.index.lua
local names_gzip = names_plain .. ".gz"
local names_bin = pathdata.index.luc
local help_messages = {
["luaotfload-tool"] = [[
Usage: %s [OPTIONS...]
Luaotfload font management and diagnostic utility.
This program is part of the Luaotfload package.
Valid options are:
-------------------------------------------------------------------------------
VERBOSITY AND DIAGNOSTICS
-q --quiet don't output anything
-v --verbose=LEVEL be more verbose (print the searched directories)
-vv print the loaded fonts
-vvv print all steps of directory searching
--log=stdout redirect log output to stdout
-V --version print version and exit
-h --help print this message
--diagnose=CHECK run a self test procedure; one of "files",
"environment", "index", "permissions", or
"repository"
-------------------------------------------------------------------------------
DATABASE
-u --update update the database
-n --no-reload suppress db update
--no-strip keep redundant information in db
-f --force force re-indexing all fonts
-L --local scan font files in $PWD
-c --no-compress do not gzip index file (text version only)
-l --flush-lookups empty lookup cache of font requests
-D --dry-run skip loading of fonts, just scan
--formats=[+|-]EXTENSIONS set, add, or subtract formats to index
-p --prefer-texmf prefer fonts in the TEXMF over system fonts
--max-fonts=N process at most N font files
--find="font name" query the database for a font name
-F --fuzzy look for approximate matches if --find fails
--limit=n limit display of fuzzy matches to <n>
(default: n = 1)
-i --info display basic font metadata
-I --inspect display detailed font metadata
-w --warnings display warnings generated by the
fontloader library
--list=<criterion> output list of entries by field <criterion>
--list=<criterion>:<value> restrict to entries with <criterion>=<value>
--fields=<f1>,<f2>,…,<fn> which fields <f> to print with --list
-b --show-blacklist show blacklisted files
--bisect=<directive> control database bisection: valid
directives are "start", "stop", "run", "status",
"good", "bad"
The font database will be saved to
%s
%s
-------------------------------------------------------------------------------
FONT CACHE
--cache=<directive> operate on font cache, where <directive> is
"show", "purge", or "erase"
The font cache will be written to
%s
]],
mkluatexfontdb = [[
FATAL ERROR
As of Luaotfload v2.5, legacy behavior is not supported anymore. Please
update your scripts and/or habits! Kthxbye.
]],
short = [[
Usage: luaotfload-tool [--help] [--version] [--verbose=<lvl>]
[--update] [--force] [--prefer-texmf] [--local]
[--dry-run] [--formats=<extension list>]
[--find=<font name>] [--fuzzy] [--info] [--inspect]
[--list=<criterion>] [--fields=<field list>]
[--cache=<directive>] [--flush-lookups]
[--show-blacklist] [--diagnose=<procedure>]
[--no-compress] [--no-strip] [--local]
[--max-fonts=<n>] [--bisect=<directive>]
Enter 'luaotfload-tool --help' for a larger list of options.
]]
}
local help_msg = function (version)
local template = help_messages[version]
iowrite(stringformat(template,
luaotfload.self,
-- names_plain,
names_gzip,
names_bin,
caches.getwritablepath (
luaotfloadconfig.cache_dir)))
end
local about = [[
%s:
Luaotfload font management and diagnostic utility.
License: GNU GPL v2.0.
Report problems to <https://github.com/lualatex/luaotfload/issues>
]]
local version_msg = function ( )
local out = function (...) texiowrite_nl (stringformat (...)) end
out (about, luaotfload.self)
out ("%s version %q", luaotfload.self, version)
out ("revision %q", luaotfloadstatus.notes.revision)
out ("database version %q", names.version)
out ("Lua interpreter: %s; version %q", runtime[1], runtime[2])
out ("Luatex SVN revision %d", status.luatex_svn)
out ("Luatex version %.2f.%d",
status.luatex_version / 100,
status.luatex_revision)
out ""
end
--- makeshift formatting
local head_adornchars = {
[1] = "*", [2] = "=", [3] = "~", [4] = "-", [5] = "·",
}
local textwidth = 80
local wd_leftcolumn = mathfloor(textwidth * .25)
local key_fmt = stringformat([[%%%ds]], wd_leftcolumn)
local val_fmt = [[%s]]
local fieldseparator = ":"
local info_fmt = key_fmt .. fieldseparator .. " " .. val_fmt
local currentdepth = 0
local counterstack = { } -- counters per level
local counterformat = "%d"
local format_counter = function (stack)
local acc = { }
for lvl=1, #stack do
acc[#acc+1] = stringformat(counterformat, stack[lvl])
end
return tableconcat(acc, ".")
end
local print_heading = function (title, level)
local structuredata
if currentdepth == level then -- top is current
counterstack[#counterstack] = counterstack[#counterstack] + 1
elseif currentdepth < level then -- push new
counterstack[#counterstack+1] = 1
else -- pop
local diff = currentdepth - level
while diff > 0 do
counterstack[#counterstack] = nil
diff = diff - 1
end
counterstack[#counterstack] = counterstack[#counterstack] + 1
end
currentdepth = level
texiowrite_nl ""
if not level or level > #head_adornchars then
level = #head_adornchars
end
local adornchar = head_adornchars[level]
local counter = format_counter(counterstack)
local s = adornchar .. adornchar .. " "
.. counter .. " "
.. title .. " "
texiowrite_nl (s .. stringrep(adornchar, textwidth-utf.len(s)))
end
local baseindent = " "
--[[doc--
show_info_items -- Together with show_info_table prints the table returned by
fontloader.info(), recursing into nested tables if appropriate (as necessitated
by Luatex versions 0.78+ which include the pfminfo table in the result.
--doc]]--
local show_info_table show_info_table = function (t, depth)
depth = depth or 0
local indent = stringrep (baseindent, depth)
local keys = table.sortedkeys (t)
for n = 1, #keys do
local key = keys [n]
local val = t [key]
if type (val) == "table" then
texiowrite_nl (indent .. stringformat (info_fmt, key, "<table>"))
show_info_table (val, depth + 1)
else
texiowrite_nl (indent .. stringformat (info_fmt, key, val))
end
end
end
local show_info_items = function (fontinfo)
print_heading (fontinfo.fullname, 1)
texiowrite_nl ""
show_info_table (fontinfo)
texiowrite_nl ""
end
local p_eol = S"\n\r"^1
local p_space = S" \t\v"^0
local p_line = p_space * C((1 - p_eol)^1)^-1
local p_lines = Ct(p_line * (p_eol^1 * p_line^-1)^0)
local show_fontloader_warnings = function (ws)
local nws = #ws
print_heading(stringformat(
[[the fontloader emitted %d warnings]],
nws), 2)
texiowrite_nl ""
for i=1, nws do
local w = ws[i]
texiowrite_nl (stringformat("%d:", i))
local lines = lpegmatch(p_lines, w)
for i=1, #lines do
local line = lines[i]
texiowrite_nl(" · " .. line)
end
texiowrite_nl ""
end
end
local p_spacechar = S" \n\r\t\v"
local p_wordchar = (1 - p_spacechar)
local p_whitespace = p_spacechar^1
local p_word = C(p_wordchar^1)
local p_words = Ct(p_word * (p_whitespace * p_word)^0)
--- string -> int -> string list
local reflow = function (text, width)
local words
if type(text) == "string" then
words = lpegmatch(p_words, text)
if #words < 2 then
return { text }
end
else
words = text
if #words < 2 then
return words
end
end
local space = " "
local utflen = utf.len
local reflowed = { }
local first = words[1]
local linelen = #first
local line = { first }
for i=2, #words do
local word = words[i]
local lword = utflen(word)
linelen = linelen + lword + 1
if linelen > width then
reflowed[#reflowed+1] = tableconcat(line)
linelen = #word
line = { word }
else
line[#line+1] = space
line[#line+1] = word
end
end
reflowed[#reflowed+1] = tableconcat(line)
return reflowed
end
--- string -> 'a -> string list
local print_field = function (key, val)
val = tostring(val)
local lhs = stringformat(key_fmt, key) .. fieldseparator .. " "
local wd_lhs = #lhs
local lines = reflow(val, textwidth - wd_lhs)
texiowrite_nl(lhs)
texiowrite(lines[1])
if #lines > 1 then
local indent = stringrep(" ", wd_lhs)
for i=2, #lines do
texiowrite_nl(indent)
texiowrite (lines[i])
end
end
end
local display_names = function (names)
print_heading("Font Metadata", 2)
for i=1, #names do
local lang, namedata = names[i].lang, names[i].names
print_heading(stringformat("Language: %s ", i, lang), 3)
texiowrite_nl ""
if namedata then
for field, value in next, namedata do
print_field(field, value)
end
end
end
end
--- see luafflib.c
local general_fields = {
--- second: l -> literal | n -> length | d -> date
{ "fullname", "l", "font name" },
{ "version", "l", "font version" },
{ "creationtime", "d", "creation time" },
{ "modificationtime", "d", "modification time" },
{ "subfonts", "n", "number of subfonts" },
{ "glyphcnt", "l", "number of glyphs" },
{ "weight", "l", "weight indicator" },
{ "design_size", "l", "design size" },
{ "design_range_bottom", "l", "design size min" },
{ "design_range_top", "l", "design size max" },
{ "fontstyle_id", "l", "font style id" },
{ "fontstyle_name", "S", "font style name" },
{ "strokewidth", "l", "stroke width" },
{ "units_per_em", "l", "units per em" },
{ "ascent", "l", "ascender height" },
{ "descent", "l", "descender height" },
{ "comments", "l", "comments" },
{ "os2_version", "l", "os2 version" },
{ "sfd_version", "l", "sfd version" },
}
local display_general = function (fullinfo)
texiowrite_nl ""
print_heading("General Information", 2)
texiowrite_nl ""
for i=1, #general_fields do
local field = general_fields[i]
local key, mode, desc = unpack(field)
local val
if mode == "l" then
val = fullinfo[key]
elseif mode == "S" then --- style names table
local data = fullinfo[key]
if type (data) == "table" then
if #data > 0 then
for n = 1, #data do
local nth = data[n]
if nth.lang == 1033 then
val = nth.name
goto found
end
end
val = next (data).name
else
val = ""
end
::found::
else
val = data
end
elseif mode == "n" then
local v = fullinfo[key]
if v then
val = #fullinfo[key]
end
elseif mode == "d" then
if ostype == "unix" then
val = osdate("%F %T", fullinfo[key])
else
--- the MS compiler doesn’t support C99, so
--- strftime is missing some functionality;
--- see loslib.c for details.
val = osdate("%Y-%m-d %H:%M:%S", fullinfo[key])
end
end
if not val then
val = "<none>"
end
print_field(desc, val)
end
end
local print_features = function (features)
for tag, data in next, features do
print_heading(tag, 4)
for script, languages in next, data do
local field = stringformat(key_fmt, script).. fieldseparator .. " "
local wd_field = #field
local lines = reflow(languages.list, textwidth - wd_field)
local indent = stringrep(" ", wd_field)
texiowrite_nl(field)
texiowrite(lines[1])
if #lines > 1 then
for i=1, #lines do
texiowrite_nl(indent .. lines[i])
end
end
end
end
end
local extract_feature_info = function (set)
local collected = { }
for i=1, #set do
local features = set[i].features
if features then
for j=1, #features do
local feature = features[j]
local scripts = feature.scripts
local tagname = stringlower(feature.tag)
local entry = collected[tagname] or { }
for k=1, #scripts do
local script = scripts[k]
local scriptname = stringlower(script.script)
local c_script = entry[scriptname] or {
list = { },
set = { },
}
local list, set = c_script.list, c_script.set
for l=1, #script.langs do
local langname = stringlower(script.langs[l])
if not set[langname] then
list[#list+1] = langname
set[langname] = true
end
end
entry[scriptname] = c_script
end
collected[tagname] = entry
end
end
end
return collected
end
local display_feature_set = function (set)
local collected = extract_feature_info(set)
print_features(collected)
end
local display_features = function (gsub, gpos)
texiowrite_nl ""
if gsub or gpos then
print_heading("Features", 2)
if gsub then
print_heading("GSUB Features", 3)
display_feature_set(gsub)
end
if gpos then
print_heading("GPOS Features", 3)
display_feature_set(gpos)
end
end
end
local show_full_info = function (path, subfont, warnings)
local rawinfo, warn = fontloader.open(path, subfont)
if warnings then
show_fontloader_warnings(warn)
end
if not rawinfo then
texiowrite_nl(stringformat([[cannot open font %s]], path))
return
end
local fontdata = { }
local fullinfo = fontloader.to_table(rawinfo)
local fields = fontloader.fields(rawinfo)
fontloader.close(rawinfo)
display_names(fullinfo.names)
display_general(fullinfo)
display_features(fullinfo.gsub, fullinfo.gpos)
end
--- Subfonts returned by fontloader.info() do not correspond
--- to the actual indices required by fontloader.open(), so
--- we try and locate the correct one by matching the request
--- against the full name.
local subfont_by_name
subfont_by_name = function (lst, askedname, n)
if not n then
return subfont_by_name (lst, askedname, 1)
end
local font = lst[n]
if font then
if sanitize_fontname (font.fullname) == askedname then
return font
end
return subfont_by_name (lst, askedname, n+1)
end
return false
end
--[[doc--
The font info knows two levels of detail:
a) basic information returned by fontloader.info(); and
b) detailed information that is a subset of the font table
returned by fontloader.open().
--doc]]--
local show_font_info = function (basename, askedname, detail, warnings)
local filenames = names.data().files
local index = filenames.base[basename]
local fullname = filenames.full[index]
askedname = sanitize_fontname (askedname)
if not fullname then -- texmf
fullname = resolvers.findfile(basename)
end
if fullname then
local shortinfo = fontloader.info(fullname)
local nfonts = #shortinfo
if nfonts > 0 then -- true type collection
local subfont
if askedname then
report (true, 1, "resolve",
[[%s is part of the font collection %s]],
askedname, basename)
subfont = subfont_by_name(shortinfo, askedname)
end
if subfont then
show_info_items(subfont)
if detail == true then
show_full_info(fullname, subfont, warnings)
end
else -- list all subfonts
report (true, 1, "resolve",
[[%s is a font collection]], basename)
for subfont = 1, nfonts do
report (true, 1, "resolve",
[[Showing info for font no. %d]], n)
show_info_items(shortinfo[subfont])
if detail == true then
show_full_info(fullname, subfont, warnings)
end
end
end
else
show_info_items(shortinfo)
if detail == true then
show_full_info(fullname, subfont, warnings)
end
end
else
report (true, 1, "resolve", "Font %s not found", filename)
end
end
--[[--
Running the scripts triggers one or more actions that have to be
executed in the correct order. To avoid duplication we track them in a
set.
--]]--
local action_sequence = {
"loglevel", "config", "help", "version",
"diagnose", "blacklist", "cache", "flush",
"bisect", "generate", "list", "query",
}
local action_pending = tabletohash(action_sequence, false)
action_pending.config = true --- always read the configuration
action_pending.loglevel = true --- always set the loglevel
action_pending.generate = false --- this is the default action
local actions = { } --- (jobspec -> (bool * bool)) list
actions.loglevel = function (job)
log.set_loglevel(job.log_level)
report ("info", 3, "util", "Setting log level", "%d", job.log_level)
report ("log", 2, "util", "Lua=%q", _VERSION)
return true, true
end
actions.config = function (job)
local config = luaotfload.config.read (job.extra_config)
--if job.print_config == true then
if true then
-- inspect (config)
return true, false
end
return true, true
end
actions.version = function (job)
version_msg()
return true, false
end
actions.help = function (job)
help_msg (job.help_version or "luaotfload-tool")
return true, false
end
actions.blacklist = function (job)
names.read_blacklist()
local n = 0
for n, entry in next, table.sortedkeys(names.blacklist) do
iowrite (stringformat("(%d %s)\n", n, entry))
end
return true, false
end
actions.generate = function (job)
local fontnames = names.update(fontnames, job.force_reload, job.dry_run)
report ("info", 2, "db", "Fonts in the database: %i", #fontnames.mappings)
if names.data() then
return true, true
end
return false, false
end
-------------------------------------------------------------------------------
--- bisect mode
-------------------------------------------------------------------------------
local bisect_status_path = caches.getwritablepath "bisect"
local bisect_status_file = bisect_status_path .."/" .. "luaotfload-bisect-status.lua"
local bisect_status_fmt = [[
--[==[-------------------------------------------------------------------------
This file is generated by Luaotfload. It can be safely deleted.
Creation date: %s.
-------------------------------------------------------------------------]==]--
%s
--- vim:ft=lua:ts=8:et:sw=2
]]
--[[doc--
write_bisect_status -- Write the history of the current bisection to disk.
--doc]]--
--- state list -> bool
local write_bisect_status = function (data)
local payload = tableserialize (data, true)
local status = stringformat (bisect_status_fmt,
osdate ("%Y-%m-d %H:%M:%S", os.time ()),
payload)
if status and iosavedata (bisect_status_file, status) then
report ("info", 4, "bisect",
"Bisection state written to %s.", bisect_status_file)
return true
end
report ("info", 0, "bisect",
"Failed to write bisection state to %s.", bisect_status_file)
return false
end
--[[doc--
read_bisect_status -- Read the bisect log from disk.
--doc]]--
--- unit -> state list
local read_bisect_status = function ()
report ("info", 4, "bisect", "Testing for status file: %q.", bisect_status_file)
if not lfsisfile (bisect_status_file) then
report ("info", 2, "bisect", "No such file: %q.", bisect_status_file)
report ("info", 0, "bisect", "Not in bisect mode.")
return false
end
report ("info", 4, "bisect", "Reading status file: %q.", bisect_status_file)
local success, status = pcall (dofile, bisect_status_file)
if not success then
report ("info", 0, "bisect", "Could not read status file.")
return false
end
return status
end
--[[doc--
bisect_start -- Begin a bisect session. Determines the number of
fonts and sets the initial high, low, and pivot values.
--doc]]--
local bisect_start = function ()
if lfsisfile (bisect_status_file) then
report ("info", 0, "bisect",
"Bisect session in progress.",
bisect_status_file)
report ("info", 0, "bisect",
"Use --bisect=stop to erase it before starting over.")
return false, false
end
report ("info", 2, "bisect",
"Starting bisection of font database %q.", bisect_status_file)
local n = names.count_font_files ()
local pivot = mathfloor (n / 2)
local data = { { 1, n, pivot } }
report ("info", 0, "bisect", "Initializing pivot to %d.", pivot)
if write_bisect_status (data) then
return true, false
end
return false, false
end
--[[doc--
bisect_stop -- Terminate bisection session by removing all state info.
--doc]]--
local bisect_stop = function ()
report ("info", 3, "bisect", "Erasing bisection state at %s.", bisect_status_file)
if lfsisfile (bisect_status_file) then
local success, msg = os.remove (bisect_status_file)
if not success then
report ("info", 2, "bisect",
"Failed to erase file %s (%s).",
bisect_status_file, msg)
end
end
if lfsisdir (bisect_status_path) then
local success, msg = os.remove (bisect_status_path)
if not success then
report ("info", 2, "bisect",
"Failed to erase directory %s (%s).",
bisect_status_path, msg)
end
end
if lfsisfile (bisect_status_file) then
return false, false
end
return true, false
end
--[[doc--
bisect_terminate -- Wrap up a bisect session by printing the
offending font and removing the state file.
--doc]]--
local bisect_terminate = function (nsteps, culprit)
report ("info", 1, "bisect",
"Bisection completed after %d steps.", nsteps)
report ("info", 0, "bisect",
"Bad file: %s.", names.nth_font_filename (culprit))
report ("info", 0, "bisect",
"Run with --bisect=stop to finish bisection.")
return true, false
end
--[[doc--
list_remainder -- Show remaining fonts in bisect slice.
--doc]]--
local list_remainder = function (lo, hi)
local fonts = names.font_slice (lo, hi)
report ("info", 0, "bisect", "%d fonts left.", hi - lo + 1)
for i = 1, #fonts do
report ("info", 1, "bisect", " · %2d: %s", lo, fonts[i])
lo = lo + 1
end
end
--[[doc--
bisect_set -- Prepare the next bisection step by setting high, low,
and pivot to new values.
The “run” directive always picks the segment below the pivot so we
can rely on the “outcome parameter” to be referring to that.
--doc]]--
local bisect_set = function (outcome)
local status = read_bisect_status ()
if not status then
return false, false
end
local nsteps = #status
local previous = status[nsteps]
if previous == true then
--- Bisection already completed; we exit early through
--- bisect_terminate() to avoid further writes to the
--- state files that mess up step counting.
nsteps = nsteps - 1
return bisect_terminate (nsteps, status[nsteps][1])
end
local lo, hi, pivot = unpack (previous)
report ("info", 3, "bisect", "Previous step %d: lo=%d, hi=%d, pivot=%d.",
nsteps, lo, hi, pivot)
if outcome == "bad" then
hi = pivot
if lo >= hi then --- complete
status[nsteps + 1] = { lo, lo, lo }
status[nsteps + 2] = true
write_bisect_status (status)
return bisect_terminate (nsteps, lo)
end
pivot = mathfloor ((lo + hi) / 2)
report ("info", 0, "bisect",
"Continuing with the lower segment: lo=%d, hi=%d, pivot=%d.",
lo, hi, pivot)
elseif outcome == "good" then
lo = pivot + 1
if lo >= hi then --- complete
status[nsteps + 1] = { lo, lo, lo }
write_bisect_status (status)
status[nsteps + 2] = true
return bisect_terminate (nsteps, lo)
end
pivot = mathfloor ((lo + hi) / 2)
report ("info", 0, "bisect",
"Continuing with the upper segment: lo=%d, hi=%d, pivot=%d.",
lo, hi, pivot)
else -- can’t happen
report ("info", 0, "bisect", "What the hell?", lo, hi, pivot)
return false, false
end
status[nsteps + 1] = { lo, hi, pivot }
write_bisect_status (status)
if hi - lo <= 10 then
list_remainder (lo, hi)
end
return true, false
end
--[[doc--
bisect_status -- Output information about the current bisect session.
--doc]]--
local bisect_status = function ()
local status = read_bisect_status ()
if not status then
return false, false
end
local nsteps = #status
if nsteps > 1 then
for i = nsteps - 1, 1, -1 do
local step = status[i]
report ("info", 2, "bisect", "Step %d: lo=%d, hi=%d, pivot=%d.",
i, unpack (step))
end
end
local current = status[nsteps]
report ("info", 0, "bisect", "Step %d: lo=%d, hi=%d, pivot=%d.",
nsteps, unpack (current))
return true, false
end
--[[doc--
bisect_run -- Run Luaotfload utilizing the current bisection state.
This should be combined with the --update mode, possibly with the
--force option.
Luaotfload always tests the segment below the pivot first.
--doc]]--
local bisect_run = function ()
local status = read_bisect_status ()
if not status then
return false, false
end
local nsteps = #status
local currentstep = nsteps + 1
local current = status[nsteps]
if current == true then -- final step
current = status[nsteps - 1]
end
local lo, hi, pivot = unpack (current)
report ("info", 3, "bisect", "Previous step %d: lo=%d, hi=%d, pivot=%d.",
nsteps, lo, hi, pivot)
report ("info", 1, "bisect", "Step %d: Testing fonts from %d to %d.",
currentstep, lo, pivot)
luaotfloadconfig.bisect = { lo, pivot }
return true, true
end
local bisect_modes = {
start = bisect_start,
good = function () return bisect_set "good" end,
bad = function () return bisect_set "bad" end,
stop = bisect_stop,
status = bisect_status,
run = bisect_run,
}
actions.bisect = function (job)
local mode = job.bisect
local runner = bisect_modes[mode]
if not runner then
report ("info", 0, "bisect", "Unknown directive %q.", mode)
return false, false
end
return runner (job)
end
actions.flush = function (job)
local success = names.flush_lookup_cache()
if success then
local success = names.save_lookups()
if success then
report ("info", 2, "cache", "Lookup cache emptied")
return true, true
end
end
return false, false
end
local cache_directives = {
["purge"] = names.purge_cache,
["erase"] = names.erase_cache,
["show"] = names.show_cache,
}
actions.cache = function (job)
local directive = cache_directives[job.cache]
if not directive or type(directive) ~= "function" then
report ("info", 2, "cache",
"Invalid font cache directive %s.", job.cache)
return false, false
end
if directive() then
return true, true
end
return false, false
end
actions.query = function (job)
require "luaotfload-features"
local query = job.query
local tmpspec = {
name = query,
lookup = "name",
specification = query,
optsize = 0,
features = { },
}
tmpspec = names.handle_request (tmpspec)
if not tmpspec.size then
tmpspec.size = 655360 --- assume 10pt
end
local foundname, subfont, success
if tmpspec.lookup == "name"
or tmpspec.lookup == "anon" --- not *exactly* as resolvers.anon
then
foundname, subfont = names.resolve_name (tmpspec)
if foundname then
foundname, _, success = names.crude_file_lookup (foundname)
end
elseif tmpspec.lookup == "file" then
foundname, _, success =
names.crude_file_lookup (tmpspec.name)
end
if success then
report (false, 0, "resolve", "Font %q found!", query)
if subfont then
report (false, 0, "resolve",
"Resolved file name %q, subfont nr. %q",
foundname, subfont)
else
report (false, 0, "resolve",
"Resolved file name %q", foundname)
end
if job.show_info then
show_font_info (foundname, query, job.full_info, job.warnings)
iowrite "\n"
end
else
report (false, 0, "resolve", "Cannot find %q in index.", query)
report (false, 0, "resolve",
"Hint: use the --fuzzy option to display suggestions.",
query)
if job.fuzzy == true then
report (false, 0, "resolve",
"Looking for close matches, this may take a while ...")
local _success = names.find_closest(query, job.fuzzy_limit)
end
end
return true, true
end
--- --list=<criterion>
--- --list=<criterion>:<value>
---
--- --list=<criterion> --fields=<f1>,<f2>,<f3>,...<fn>
local get_fields get_fields = function (entry, fields, acc, n)
if not acc then
return get_fields (entry, fields, { }, 1)
end
local field = fields [n]
if field then
local chain = stringsplit (field, "->")
local tmp = entry
for i = 1, #chain - 1 do
tmp = tmp [chain [i]]
if not tmp then
--- invalid field
break
end
end
if tmp then
local value = tmp [chain [#chain]]
acc[#acc+1] = value or false
else
acc[#acc+1] = false
end
return get_fields (entry, fields, acc, n+1)
end
return acc
end
local separator = "\t" --- could be “,” for csv
local format_fields format_fields = function (fields, acc, n)
if not acc then
return format_fields(fields, { }, 1)
end
local field = fields[n]
if field ~= nil then
if field == false then
acc[#acc+1] = "<none>"
else
acc[#acc+1] = tostring(field)
end
return format_fields(fields, acc, n+1)
end
return tableconcat(acc, separator)
end
local set_primary_field
set_primary_field = function (fields, addme, acc, n)
if not acc then
return set_primary_field(fields, addme, { addme }, 1)
end
local field = fields[n]
if field then
if field ~= addme then
acc[#acc+1] = field
end
return set_primary_field(fields, addme, acc, n+1)
end
return acc
end
local splitcomma = luaotfload.parsers.splitcomma
actions.list = function (job)
local criterion = job.criterion
local asked_fields = job.asked_fields
local name_index = names.data ()
if asked_fields then
asked_fields = lpegmatch(splitcomma, asked_fields)
end
if not asked_fields then
--- some defaults
asked_fields = { "plainname", "version", }
end
if not name_index then
name_index = names.load()
end
local mappings = name_index.mappings
local nmappings = #mappings
if criterion == "*" then
report (false, 1, "list", "All %d entries", nmappings)
for i=1, nmappings do
local entry = mappings[i]
local fields = get_fields(entry, asked_fields)
--- we could collect these instead ...
local formatted = format_fields(fields)
texiowrite_nl(formatted)
end
else
criterion = stringexplode(criterion, ":") --> { field, value }
local asked_value = criterion[2]
criterion = criterion[1]
asked_fields = set_primary_field(asked_fields, criterion)
report (false, 1, "list", "By %s", criterion)
--- firstly, build a list of fonts to operate on
local targets = { }
if asked_value then --- only those whose value matches
report (false, 2, "list", "Restricting to value %s", asked_value)
for i=1, nmappings do
local entry = mappings[i]
if entry[criterion]
and tostring(entry[criterion]) == asked_value
then
targets[#targets+1] = entry
end
end
else --- whichever have the field, sorted
local categories, by_category = { }, { }
for i=1, nmappings do
local entry = mappings[i]
local tmp = entry
local chain = stringsplit (criterion, "->")
for i = 1, #chain - 1 do
tmp = tmp [chain [i]]
if not tmp then
break
end
end
local value = tmp and tmp [chain [#chain]] or "<none>"
if value then
--value = tostring(value)
local entries = by_category[value]
if not entries then
entries = { entry }
categories[#categories+1] = value
else
entries[#entries+1] = entry
end
by_category[value] = entries
end
end
table.sort(categories)
for i=1, #categories do
local entries = by_category[categories[i]]
for j=1, #entries do
targets[#targets+1] = entries[j]
end
end
end
local ntargets = #targets
report (false, 2, "list", "%d entries", ntargets)
--- now, output the collection
for i=1, ntargets do
local entry = targets[i]
local fields = get_fields(entry, asked_fields)
local formatted = format_fields(fields)
texiowrite_nl(formatted)
end
end
texiowrite_nl ""
return true, true
end
actions.diagnose = function (job)
--- diagnostics are loaded on demand
local diagnose = require "luaotfload-diagnostics.lua"
return diagnose (job)
end
--- stuff to be carried out prior to exit
local finalizers = { }
--- returns false if at least one of the actions failed, mainly
--- for closing io channels
local finalize = function ()
local success = true
for _, fun in next, finalizers do
if type (fun) == "function" then
if fun () == false then success = false end
end
end
return success
end
--[[--
Command-line processing.
luaotfload-tool relies on the script alt_getopt to process argv and
analyzes its output.
TODO with extended lualibs we have the functionality from the
environment.* namespace that could eliminate the dependency on
alt_getopt.
--]]--
local process_cmdline = function ( ) -- unit -> jobspec
local result = { -- jobspec
force_reload = nil,
full_info = false,
warnings = false,
criterion = "",
query = "",
log_level = 0, --- 2 is approx. the old behavior
bisect = nil,
}
local long_options = {
["bisect"] = 1,
cache = 1,
conf = 1,
diagnose = 1,
["dry-run"] = "D",
["flush-lookups"] = "l",
fields = 1,
find = 1,
force = "f",
formats = 1,
fuzzy = "F",
help = "h",
info = "i",
inspect = "I",
limit = 1,
list = 1,
["local"] = "L",
log = 1,
["max-fonts"] = 1,
["no-compress"] = "c",
["no-reload"] = "n",
["no-strip"] = 0,
["skip-read"] = "R",
["prefer-texmf"] = "p",
["print-conf"] = 0,
quiet = "q",
["show-blacklist"] = "b",
stats = "S",
update = "u",
verbose = 1,
version = "V",
warnings = "w",
}
local short_options = "bcDfFiIlLnpqRSuvVhw"
local options, _, optarg =
alt_getopt.get_ordered_opts (arg, short_options, long_options)
local nopts = #options
for n=1, nopts do
local v = options[n]
if v == "q" then
result.log_level = 0
elseif v == "u" then
action_pending["generate"] = true
elseif v == "v" then
if result.log_level > 0 then
result.log_level = result.log_level + 1
else
result.log_level = 1
end
elseif v == "V" then
action_pending["version"] = true
elseif v == "h" then
action_pending["help"] = true
elseif v == "f" then
result.update = true
result.force_reload = 1
elseif v == "verbose" then
local lvl = optarg[n]
if lvl then
lvl = tonumber(lvl)
result.log_level = lvl
if lvl > 2 then
result.warnings = true
end
end
elseif v == "w" then
result.warnings = true
elseif v == "log" then
local str = optarg[n]
if str then
finalizers = log.set_logout(str, finalizers)
end
elseif v == "find" then
action_pending["query"] = true
result.query = optarg[n]
elseif v == "F" then
result.fuzzy = true
elseif v == "limit" then
local lim = optarg[n]
if lim then
result.fuzzy_limit = tonumber(lim)
end
elseif v == "i" then
result.show_info = true
elseif v == "I" then
result.show_info = true
result.full_info = true
elseif v == "l" then
action_pending["flush"] = true
elseif v == "L" then
action_pending["generate"] = true
luaotfloadconfig.scan_local = true
elseif v == "list" then
action_pending["list"] = true
result.criterion = optarg[n]
elseif v == "fields" then
result.asked_fields = optarg[n]
elseif v == "cache" then
action_pending["cache"] = true
result.cache = optarg[n]
elseif v == "D" then
result.dry_run = true
elseif v == "p" then
names.set_location_precedence {
"local", "texmf", "system"
}
elseif v == "b" then
action_pending["blacklist"] = true
elseif v == "diagnose" then
action_pending["diagnose"] = true
result.asked_diagnostics = optarg[n]
elseif v == "formats" then
names.set_font_filter (optarg[n])
elseif v == "n" then
luaotfloadconfig.update_live = false
elseif v == "S" then
luaotfloadconfig.statistics = true
elseif v == "R" then
--- dev only, undocumented
luaotfloadconfig.skip_read = true
elseif v == "c" then
luaotfloadconfig.compress = false
elseif v == "no-strip" then
luaotfloadconfig.strip = false
elseif v == "max-fonts" then
local n = optarg[n]
if n then
n = tonumber(n)
if n and n > 0 then
luaotfloadconfig.max_fonts = n
end
end
elseif v == "bisect" then
result.bisect = optarg[n]
action_pending.bisect = true
elseif v == "conf" then
local extra = stringexplode (optarg[n], ",+")
if extra then
local extra_config = result.extra_config
if extra_config then
table.append (extra_config, extra)
else
result.extra_config = extra
end
end
elseif v == "print-conf" then
result.print_config = true
end
end
if nopts == 0 then
action_pending["help"] = true
result.help_version = "short"
end
return result
end
local main = function ( ) -- unit -> int
local retval = 0
local job = process_cmdline()
-- inspect(action_pending)
-- inspect(job)
for i=1, #action_sequence do
local actionname = action_sequence[i]
local exit = false
if action_pending[actionname] then
report ("log", 3, "util", "Preparing for task", "%s", actionname)
local action = actions[actionname]
local success, continue = action(job)
if not success then
report (false, 0, "util",
"Failed to execute task.", "%s", actionname)
retval = -1
exit = true
elseif not continue then
report (false, 3, "util",
"Task completed, exiting.", "%s", actionname)
exit = true
else
report (false, 3, "util",
"Task completed successfully.", "%s", actionname)
end
end
if exit then break end
end
if finalize () == false then
retval = -1
end
--texiowrite_nl""
return retval
end
return main()
-- vim:tw=71:sw=4:ts=4:expandtab
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