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Merge pull request #1738 from alerque/multi-inputs

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/core/sile.lua

-- Initialize SILE internals
SILE = {}

SILE.version = require("core.version")
SILE.features = require("core.features")

-- Initialize Lua environment and global utilities
SILE.lua_version = _VERSION:sub(-3)
SILE.lua_isjit = type(jit) == "table"
SILE.full_version = string.format("SILE %s (%s)", SILE.version, SILE.lua_isjit and jit.version or _VERSION)

-- Backport of lots of Lua 5.3 features to Lua 5.[12]
if not SILE.lua_isjit and SILE.lua_version < "5.3" then require("compat53") end

-- Penlight on-demand module loader, provided for SILE and document usage
pl = require("pl.import_into")()

-- For developer testing only, usually in CI
if os.getenv("SILE_COVERAGE") then require("luacov") end

-- Lua 5.3+ has a UTF-8 safe string function module but it is somewhat
-- underwhelming. This module includes more functions and supports older Lua
-- versions. Docs: https://github.com/starwing/luautf8
luautf8 = require("lua-utf8")

-- Localization library, provided as global
fluent = require("fluent")()

-- Includes for _this_ scope
local lfs = require("lfs")

-- Developer tooling profiler
local ProFi

SILE.utilities = require("core.utilities")
SU = SILE.utilities -- regrettable global alias

-- On demand loader, allows modules to be loaded into a specific scope but
-- only when/if accessed.
local core_loader = function (scope)
  return setmetatable({}, {
    __index = function (self, key)
      -- local var = rawget(self, key)
      local m = require(("%s.%s"):format(scope, key))
      self[key] = m
      return m
    end
  })
end

SILE.Commands = {}
SILE.Help = {}
SILE.debugFlags = {}
SILE.nodeMakers = {}
SILE.tokenizers = {}
SILE.status = {}
SILE.scratch = {}
SILE.documentState = {}
SILE.rawHandlers = {}

-- User input values, currently from CLI options, potentially all the inuts
-- needed for a user to use a SILE-as-a-library verion to produce documents
-- programatically.
SILE.input = {
  filenames = {},
  evaluates = {},
  evaluateAfters = {},
  includes = {},
  uses = {},
  options = {},
  preambles = {},
  postambles = {},
}

-- Internal libraries that are idempotent and return classes that need instantiation
SILE.inputters = core_loader("inputters")
SILE.shapers = core_loader("shapers")
SILE.outputters = core_loader("outputters")
SILE.classes = core_loader("classes")
SILE.packages = core_loader("packages")
SILE.typesetters = core_loader("typesetters")
SILE.pagebuilders = core_loader("pagebuilders")

-- Internal libraries that don't make assumptions on load, only use
SILE.traceStack = require("core.tracestack")()
SILE.parserBits = require("core.parserbits")
SILE.frameParser = require("core.frameparser")
SILE.color = require("core.color")
SILE.units = require("core.units")
SILE.fontManager = require("core.fontmanager")

-- Internal libraries that assume globals, may be picky about load order
SILE.measurement = require("core.measurement")
SILE.length = require("core.length")
SILE.papersize = require("core.papersize")
SILE.nodefactory = require("core.nodefactory")

-- NOTE:
-- See remainaing internal libraries loaded at the end of this file because
-- they run core SILE functions on load istead of waiting to be called (or
-- depend on others that do).

local function runEvals (evals, arg)
  for _, snippet in ipairs(evals) do
    local pId = SILE.traceStack:pushText(snippet)
    local status, func = pcall(load, snippet)
    if status then
      func()
    else
      SU.error(("Error parsing code provided in --%s snippet: %s"):format(arg, func))
    end
    SILE.traceStack:pop(pId)
  end
end

SILE.init = function ()
  if not SILE.backend then
    SILE.backend = "libtexpdf"
  end
  if SILE.backend == "libtexpdf" then
    SILE.shaper = SILE.shapers.harfbuzz()
    SILE.outputter = SILE.outputters.libtexpdf()
  elseif SILE.backend == "cairo" then
    SILE.shaper = SILE.shapers.pango()
    SILE.outputter = SILE.outputters.cairo()
  elseif SILE.backend == "debug" then
    SILE.shaper = SILE.shapers.harfbuzz()
    SILE.outputter = SILE.outputters.debug()
  elseif SILE.backend == "text" then
    SILE.shaper = SILE.shapers.harfbuzz()
    SILE.outputter = SILE.outputters.text()
  elseif SILE.backend == "dummy" then
    SILE.shaper = SILE.shapers.harfbuzz()
    SILE.outputter = SILE.outputters.dummy()
  end
  SILE.pagebuilder = SILE.pagebuilders.base()
  io.stdout:setvbuf("no")
  if SU.debugging("profile") then
    ProFi = require("ProFi")
    ProFi:start()
  end
  if SILE.makeDeps then
    SILE.makeDeps:add(_G.executablePath)
  end
  runEvals(SILE.input.evaluates, "evaluate")
end

SILE.use = function (module, options)
  local pack
  if type(module) == "string" then
    pack = require(module)
  elseif type(module) == "table" then
    pack = module
  end
  local name = pack._name
  local class = SILE.documentState.documentClass
  if not pack.type then
    SU.error("Modules must declare their type")
  elseif pack.type == "class" then
    SILE.classes[name] = pack
    if class then
      SU.error("Cannot load a class after one is already instantiated")
    end
    SILE.scratch.class_from_uses = pack
  elseif pack.type == "inputter" then
    SILE.inputters[name] = pack
    SILE.inputter = pack(options)
  elseif pack.type == "outputter" then
    SILE.outputters[name] = pack
    SILE.outputter = pack(options)
  elseif pack.type == "shaper" then
    SILE.shapers[name] = pack
    SILE.shaper = pack(options)
  elseif pack.type == "typesetter" then
    SILE.typesetters[name] = pack
    SILE.typesetter = pack(options)
  elseif pack.type == "pagebuilder" then
    SILE.pagebuilders[name] = pack
    SILE.pagebuilder = pack(options)
  elseif pack.type == "package" then
    SILE.packages[name] = pack
    if class then
      pack(options)
    else
      table.insert(SILE.input.preambles, { pack = pack, options = options })
    end
  end
end

SILE.require = function (dependency, pathprefix, deprecation_ack)
  if pathprefix and not deprecation_ack then
    local notice = string.format([[
  Please don't use the path prefix mechanism; it was intended to provide
  alternate paths to override core components but never worked well and is
  causing portability problems. Just use Lua idiomatic module loading:
      SILE.require("%s", "%s") → SILE.require("%s.%s")]],
      dependency, pathprefix, pathprefix, dependency)
    SU.deprecated("SILE.require", "SILE.require", "0.13.0", nil, notice)
  end
  dependency = dependency:gsub(".lua$", "")
  local status, lib
  if pathprefix then
    status, lib = pcall(require, pl.path.join(pathprefix, dependency))
  end
  if not status then
    local prefixederror = lib
    status, lib = pcall(require, dependency)
    if not status then
      SU.error(("Unable to find module '%s'%s")
        :format(dependency, SILE.traceback and ((pathprefix and "\n  " .. prefixederror or "") .. "\n  " .. lib) or ""))
    end
  end
  local class = SILE.documentState.documentClass
  if not class and not deprecation_ack then
    SU.warn(string.format([[
  Use of SILE.require() is only supported in documents, packages, or class
  init functions. It will not function fully before the class is instantiated.
  Please just use the Lua require() function directly:
      SILE.require("%s") → require("%s")]], dependency, dependency))
  end
  if type(lib) == "table" and class then
    if lib.type == "package" then
      lib(class)
    else
      class:initPackage(lib)
    end
  end
  return lib
end

SILE.process = function (ast)
  if not ast then return end
  if SU.debugging("ast") then
    SU.debugAST(ast, 0)
  end
  if type(ast) == "function" then return ast() end
  for _, content in ipairs(ast) do
    if type(content) == "string" then
      SILE.typesetter:typeset(content)
    elseif type(content) == "function" then
      content()
    elseif SILE.Commands[content.command] then
      SILE.call(content.command, content.options, content)
    elseif content.id == "texlike_stuff"
      or (not content.command and not content.id) then
      local pId = SILE.traceStack:pushContent(content, "texlike_stuff")
      SILE.process(content)
      SILE.traceStack:pop(pId)
    elseif type(content) ~= "nil" then
      local pId = SILE.traceStack:pushContent(content)
      SU.error("Unknown command "..(tostring(content.command or content.id)))
      SILE.traceStack:pop(pId)
    end
  end
end

local preloadedinputters = { "xml", "lua", "sil" }

local function detectFormat (doc, filename)
  -- Preload default reader types so content detection has something to work with
  if #SILE.inputters == 0 then
    for _, format in ipairs(preloadedinputters) do
      local _ = SILE.inputters[format]
    end
  end
  local contentDetectionOrder = {}
  for _, inputter in pairs(SILE.inputters) do
    if inputter.order then table.insert(contentDetectionOrder, inputter) end
  end
  table.sort(contentDetectionOrder, function (a, b) return a.order < b.order end)
  local initialround = filename and 1 or 2
  for round = initialround, 3 do
    for _, inputter in ipairs(contentDetectionOrder) do
      SU.debug("inputter", "Running content type detection round", round, "with", inputter._name)
      if inputter.appropriate(round, filename, doc) then
        return inputter._name
      end
    end
  end
  SU.error(("Unable to pick inputter to process input from '%s'"):format(filename))
end

function SILE.processString (doc, format, filename, options)
  local cpf
  if not filename then
    cpf = SILE.currentlyProcessingFile
    local caller = debug.getinfo(2, "Sl")
    SILE.currentlyProcessingFile = caller.short_src..":"..caller.currentline
  end
  -- In the event we're processing the master file *and* the user gave us
  -- a specific inputter to use, use it at the exclusion of all content type
  -- detection
  local inputter
  if filename and pl.path.splitext(pl.path.normcase(filename)) == SILE.masterFilename and SILE.inputter then
    inputter = SILE.inputter
  else
    format = format or detectFormat(doc, filename)
    if not SILE.quiet then
      io.stderr:write(("<%s> as %s\n"):format(SILE.currentlyProcessingFile, format))
    end
    inputter = SILE.inputters[format](options)
    -- If we did content detection *and* this is the master file, save the
    -- inputter for posterity and postambles
    if filename and pl.path.splitext(pl.path.normcase(filename)) == SILE.masterFilename then
      SILE.inputter = inputter
    end
  end
  local pId = SILE.traceStack:pushDocument(SILE.currentlyProcessingFile, doc)
  inputter:process(doc)
  SILE.traceStack:pop(pId)
  if cpf then SILE.currentlyProcessingFile = cpf end
end

function SILE.processFile (filename, format, options)
  local doc
  if filename == "-" then
    filename = "STDIN"
    SILE.masterFilename = "STDIN"
    doc = io.stdin:read("*a")
  else
    -- Turn slashes around in the event we get passed a path from a Windows shell
    filename = filename:gsub("\\", "/")
    if not SILE.masterFilename then
      -- Strip extension
      SILE.masterFilename = string.match(filename, "(.+)%..-$") or filename
    end
    if SILE.masterFilename and not SILE.masterDir then
      SILE.masterDir = SILE.masterFilename:match("(.-)[^%/]+$")
    end
    if SILE.masterDir and SILE.masterDir:len() >= 1 then
      _G.extendSilePath(SILE.masterDir)
    end
    filename = SILE.resolveFile(filename)
    if not filename then
      SU.error("Could not find file")
    end
    local mode = lfs.attributes(filename).mode
    if mode ~= "file" and mode ~= "named pipe" then
      SU.error(filename.." isn't a file or named pipe, it's a ".. mode .."!")
    end
    if SILE.makeDeps then
      SILE.makeDeps:add(filename)
    end
    local file, err = io.open(filename)
    if not file then
      print("Could not open "..filename..": "..err)
      return
    end
    doc = file:read("*a")
  end
  local cpf = SILE.currentlyProcessingFile
  SILE.currentlyProcessingFile = filename
  local pId = SILE.traceStack:pushDocument(filename, doc)
  local ret = SILE.processString(doc, format, filename, options)
  SILE.traceStack:pop(pId)
  SILE.currentlyProcessingFile = cpf
  return ret
end

-- TODO: this probably needs deprecating, moved here just to get out of the way so
-- typesetters classing works as expected
SILE.typesetNaturally = function (frame, func)
  local saveTypesetter = SILE.typesetter
  if SILE.typesetter.frame then SILE.typesetter.frame:leave(SILE.typesetter) end
  SILE.typesetter = SILE.typesetters.base(frame)
  SILE.settings:temporarily(func)
  SILE.typesetter:leaveHmode()
  SILE.typesetter:chuck()
  SILE.typesetter.frame:leave(SILE.typesetter)
  SILE.typesetter = saveTypesetter
  if SILE.typesetter.frame then SILE.typesetter.frame:enter(SILE.typesetter) end
end

-- Sort through possible places files could be
function SILE.resolveFile (filename, pathprefix)
  local candidates = {}
  -- Start with the raw file name as given prefixed with a path if requested
  if pathprefix then candidates[#candidates+1] = pl.path.join(pathprefix, "?") end
  -- Also check the raw file name without a path
  candidates[#candidates+1] = "?"
  -- Iterate through the directory of the master file, the SILE_PATH variable, and the current directory
  -- Check for prefixed paths first, then the plain path in that fails
  if SILE.masterDir then
    for path in SU.gtoke(SILE.masterDir..";"..tostring(os.getenv("SILE_PATH")), ";") do
      if path.string and path.string ~= "nil" then
        if pathprefix then candidates[#candidates+1] = pl.path.join(path.string, pathprefix, "?") end
        candidates[#candidates+1] = pl.path.join(path.string, "?")
      end
    end
  end
  -- Return the first candidate that exists, also checking the .sil suffix
  local path = table.concat(candidates, ";")
  local resolved, err = package.searchpath(filename, path, "/")
  if resolved then
    if SILE.makeDeps then SILE.makeDeps:add(resolved) end
  else
    SU.warn(("Unable to find file '%s': %s"):format(filename, err))
  end
  return resolved
end

function SILE.call (command, options, content)
  options = options or {}
  content = content or {}
  if SILE.traceback and type(content) == "table" and not content.lno then
    -- This call is from code (no content.lno) and we want to spend the time
    -- to determine everything we need about the caller
    local caller = debug.getinfo(2, "Sl")
    content.file, content.lno = caller.short_src, caller.currentline
  end
  local pId = SILE.traceStack:pushCommand(command, content, options)
  if not SILE.Commands[command] then SU.error("Unknown command " .. command) end
  local result = SILE.Commands[command](options, content)
  SILE.traceStack:pop(pId)
  return result
end

function SILE.registerCommand (name, func, help, pack, cheat)
  local class = SILE.documentState.documentClass
  if not cheat then
    SU.deprecated("SILE.registerCommand", "class:registerCommand", "0.14.0", "0.16.0",
    [[Commands are being scoped to the document classes they are loaded into rather than being globals.]])
  end
  -- Shimming until we have all scope cheating removed from core
  if not cheat or not class or class.type ~= "class" then
    return SILE.classes.base.registerCommand(nil, name, func, help, pack)
  end
  return class:registerCommand(name, func, help, pack)
end

function SILE.setCommandDefaults (command, defaults)
  local oldCommand = SILE.Commands[command]
  SILE.Commands[command] = function (options, content)
    for k, v in pairs(defaults) do
      options[k] = options[k] or v
    end
    return oldCommand(options, content)
  end
end

function SILE.registerUnit (unit, spec)
  -- If a unit exists already, clear it first so we get fresh meta table entries, see #1607
  if SILE.units[unit] then
    SILE.units[unit] = nil
  end
  SILE.units[unit] = spec
end

function SILE.paperSizeParser (size)
  -- SU.deprecated("SILE.paperSizeParser", "SILE.papersize", "0.10.0", nil)
  return SILE.papersize(size)
end

function SILE.finish ()
  if SILE.makeDeps then
    SILE.makeDeps:write()
  end
  SILE.documentState.documentClass:finish()
  SILE.font.finish()
  runEvals(SILE.input.evaluateAfters, "evaluate-after")
  if not SILE.quiet then
    io.stderr:write("\n")
  end
  if SU.debugging("profile") then
    ProFi:stop()
    ProFi:writeReport(SILE.masterFilename..'.profile.txt')
  end
  if SU.debugging("versions") then
    SILE.shaper:debugVersions()
  end
end

-- Internal libraries that run core SILE functions on load
SILE.settings = require("core.settings")()
require("core.hyphenator-liang")
require("core.languages")
require("core.packagemanager")
SILE.linebreak = require("core.break")
require("core.frame")
SILE.cli = require("core.cli")
SILE.repl = require("core.repl")
SILE.font = require("core.font")

-- For warnings and shims scheduled for removal that are easier to keep track
-- of when they are not spead across so many locations...
require("core/deprecations")

return SILE

1	-- Initialize SILE internals
2	SILE = {}	1✔
3
4	SILE.version = require("core.version")	1✔
5	SILE.features = require("core.features")	1✔
6
7	-- Initialize Lua environment and global utilities
8	SILE.lua_version = _VERSION:sub(-3)	2✔
9	SILE.lua_isjit = type(jit) == "table"	1✔
10	SILE.full_version = string.format("SILE %s (%s)", SILE.version, SILE.lua_isjit and jit.version or _VERSION)	1✔
11
12	-- Backport of lots of Lua 5.3 features to Lua 5.[12]
13	if not SILE.lua_isjit and SILE.lua_version < "5.3" then require("compat53") end	1✔
14
15	-- Penlight on-demand module loader, provided for SILE and document usage
16	pl = require("pl.import_into")()	2✔
17
18	-- For developer testing only, usually in CI
19	if os.getenv("SILE_COVERAGE") then require("luacov") end	1✔
20
21	-- Lua 5.3+ has a UTF-8 safe string function module but it is somewhat
22	-- underwhelming. This module includes more functions and supports older Lua
23	-- versions. Docs: https://github.com/starwing/luautf8
24	luautf8 = require("lua-utf8")	172✔
25
26	-- Localization library, provided as global
27	fluent = require("fluent")()	343✔
28
29	-- Includes for _this_ scope
30	local lfs = require("lfs")	171✔
31
32	-- Developer tooling profiler
33	local ProFi
34
35	SILE.utilities = require("core.utilities")	171✔
36	SU = SILE.utilities -- regrettable global alias	171✔
37
38	-- On demand loader, allows modules to be loaded into a specific scope but
39	-- only when/if accessed.
40	local core_loader = function (scope)
41	return setmetatable({}, {	1,197✔
42	__index = function (self, key)
43	-- local var = rawget(self, key)
44	local m = require(("%s.%s"):format(scope, key))	1,382✔
45	self[key] = m	1,382✔
46	return m	1,382✔
47	end
48	})	1,197✔
49	end
50
51	SILE.Commands = {}	171✔
52	SILE.Help = {}	171✔
53	SILE.debugFlags = {}	171✔
54	SILE.nodeMakers = {}	171✔
55	SILE.tokenizers = {}	171✔
56	SILE.status = {}	171✔
57	SILE.scratch = {}	171✔
58	SILE.documentState = {}	171✔
59	SILE.rawHandlers = {}	171✔
60
61	-- User input values, currently from CLI options, potentially all the inuts
62	-- needed for a user to use a SILE-as-a-library verion to produce documents
63	-- programatically.
64	SILE.input = {	171✔
65	filenames = {},	171✔
66	evaluates = {},	171✔
67	evaluateAfters = {},	171✔
68	includes = {},	171✔
69	uses = {},	171✔
70	options = {},	171✔
71	preambles = {},	171✔
72	postambles = {},	171✔
73	}	171✔
74
75	-- Internal libraries that are idempotent and return classes that need instantiation
76	SILE.inputters = core_loader("inputters")	342✔
77	SILE.shapers = core_loader("shapers")	342✔
78	SILE.outputters = core_loader("outputters")	342✔
79	SILE.classes = core_loader("classes")	342✔
80	SILE.packages = core_loader("packages")	342✔
81	SILE.typesetters = core_loader("typesetters")	342✔
82	SILE.pagebuilders = core_loader("pagebuilders")	342✔
83
84	-- Internal libraries that don't make assumptions on load, only use
85	SILE.traceStack = require("core.tracestack")()	342✔
86	SILE.parserBits = require("core.parserbits")	171✔
87	SILE.frameParser = require("core.frameparser")	171✔
88	SILE.color = require("core.color")	171✔
89	SILE.units = require("core.units")	171✔
90	SILE.fontManager = require("core.fontmanager")	171✔
91
92	-- Internal libraries that assume globals, may be picky about load order
93	SILE.measurement = require("core.measurement")	171✔
94	SILE.length = require("core.length")	171✔
95	SILE.papersize = require("core.papersize")	171✔
96	SILE.nodefactory = require("core.nodefactory")	171✔
97
98	-- NOTE:
99	-- See remainaing internal libraries loaded at the end of this file because
100	-- they run core SILE functions on load istead of waiting to be called (or
101	-- depend on others that do).
102
103	local function runEvals (evals, arg)
104	for _, snippet in ipairs(evals) do	342✔
105	local pId = SILE.traceStack:pushText(snippet)	×
106	local status, func = pcall(load, snippet)	×
107	if status then	×
108	func()	×
109	else
110	SU.error(("Error parsing code provided in --%s snippet: %s"):format(arg, func))	×
111	end
112	SILE.traceStack:pop(pId)	×
113	end
114	end
115
116	SILE.init = function ()	171✔
117	if not SILE.backend then	171✔
118	SILE.backend = "libtexpdf"	171✔
119	end
120	if SILE.backend == "libtexpdf" then	171✔
121	SILE.shaper = SILE.shapers.harfbuzz()	513✔
122	SILE.outputter = SILE.outputters.libtexpdf()	513✔
123	elseif SILE.backend == "cairo" then	×
124	SILE.shaper = SILE.shapers.pango()	×
125	SILE.outputter = SILE.outputters.cairo()	×
126	elseif SILE.backend == "debug" then	×
127	SILE.shaper = SILE.shapers.harfbuzz()	×
128	SILE.outputter = SILE.outputters.debug()	×
129	elseif SILE.backend == "text" then	×
130	SILE.shaper = SILE.shapers.harfbuzz()	×
131	SILE.outputter = SILE.outputters.text()	×
132	elseif SILE.backend == "dummy" then	×
133	SILE.shaper = SILE.shapers.harfbuzz()	×
134	SILE.outputter = SILE.outputters.dummy()	×
135	end
136	SILE.pagebuilder = SILE.pagebuilders.base()	513✔
137	io.stdout:setvbuf("no")	171✔
138	if SU.debugging("profile") then	342✔
139	ProFi = require("ProFi")	×
140	ProFi:start()	×
141	end
142	if SILE.makeDeps then	171✔
143	SILE.makeDeps:add(_G.executablePath)	171✔
144	end
145	runEvals(SILE.input.evaluates, "evaluate")	171✔
146	end
147
148	SILE.use = function (module, options)	171✔
149	local pack
150	if type(module) == "string" then	106✔
151	pack = require(module)	105✔
152	elseif type(module) == "table" then	1✔
153	pack = module	1✔
154	end
155	local name = pack._name	106✔
156	local class = SILE.documentState.documentClass	106✔
157	if not pack.type then	106✔
158	SU.error("Modules must declare their type")	×
159	elseif pack.type == "class" then	106✔
160	SILE.classes[name] = pack	×
161	if class then	×
162	SU.error("Cannot load a class after one is already instantiated")	×
163	end
164	SILE.scratch.class_from_uses = pack	×
165	elseif pack.type == "inputter" then	106✔
166	SILE.inputters[name] = pack	×
167	SILE.inputter = pack(options)	×
168	elseif pack.type == "outputter" then	106✔
169	SILE.outputters[name] = pack	×
170	SILE.outputter = pack(options)	×
171	elseif pack.type == "shaper" then	106✔
172	SILE.shapers[name] = pack	×
173	SILE.shaper = pack(options)	×
174	elseif pack.type == "typesetter" then	106✔
175	SILE.typesetters[name] = pack	×
176	SILE.typesetter = pack(options)	×
177	elseif pack.type == "pagebuilder" then	106✔
178	SILE.pagebuilders[name] = pack	×
179	SILE.pagebuilder = pack(options)	×
180	elseif pack.type == "package" then	106✔
181	SILE.packages[name] = pack	106✔
182	if class then	106✔
183	pack(options)	212✔
184	else
185	table.insert(SILE.input.preambles, { pack = pack, options = options })	×
186	end
187	end
188	end
189
190	SILE.require = function (dependency, pathprefix, deprecation_ack)	171✔
191	if pathprefix and not deprecation_ack then	191✔
192	local notice = string.format([[	×
193	Please don't use the path prefix mechanism; it was intended to provide
194	alternate paths to override core components but never worked well and is
195	causing portability problems. Just use Lua idiomatic module loading:
196	SILE.require("%s", "%s") → SILE.require("%s.%s")]],
197	dependency, pathprefix, pathprefix, dependency)	×
198	SU.deprecated("SILE.require", "SILE.require", "0.13.0", nil, notice)	×
199	end
200	dependency = dependency:gsub(".lua$", "")	191✔
201	local status, lib
202	if pathprefix then	191✔
203	status, lib = pcall(require, pl.path.join(pathprefix, dependency))	342✔
204	end
205	if not status then	191✔
206	local prefixederror = lib	20✔
207	status, lib = pcall(require, dependency)	20✔
208	if not status then	20✔
209	SU.error(("Unable to find module '%s'%s")	×
210	:format(dependency, SILE.traceback and ((pathprefix and "\n " .. prefixederror or "") .. "\n " .. lib) or ""))	×
211	end
212	end
213	local class = SILE.documentState.documentClass	191✔
214	if not class and not deprecation_ack then	191✔
215	SU.warn(string.format([[	×
216	Use of SILE.require() is only supported in documents, packages, or class
217	init functions. It will not function fully before the class is instantiated.
218	Please just use the Lua require() function directly:
219	SILE.require("%s") → require("%s")]], dependency, dependency))	×
220	end
221	if type(lib) == "table" and class then	191✔
222	if lib.type == "package" then	20✔
223	lib(class)	40✔
224	else
225	class:initPackage(lib)	×
226	end
227	end
228	return lib	191✔
229	end
230
231	SILE.process = function (ast)	171✔
232	if not ast then return end	1,389✔
233	if SU.debugging("ast") then	2,770✔
234	SU.debugAST(ast, 0)	×
235	end
236	if type(ast) == "function" then return ast() end	1,385✔
237	for _, content in ipairs(ast) do	4,817✔
238	if type(content) == "string" then	3,785✔
239	SILE.typesetter:typeset(content)	4,418✔
240	elseif type(content) == "function" then	1,576✔
241	content()	2✔
242	elseif SILE.Commands[content.command] then	1,575✔
243	SILE.call(content.command, content.options, content)	3,128✔
244	elseif content.id == "texlike_stuff"	11✔
245	or (not content.command and not content.id) then	6✔
246	local pId = SILE.traceStack:pushContent(content, "texlike_stuff")	11✔
247	SILE.process(content)	11✔
248	SILE.traceStack:pop(pId)	22✔
249	elseif type(content) ~= "nil" then	×
250	local pId = SILE.traceStack:pushContent(content)	×
251	SU.error("Unknown command "..(tostring(content.command or content.id)))	×
252	SILE.traceStack:pop(pId)	×
253	end
254	end
255	end
256
257	local preloadedinputters = { "xml", "lua", "sil" }	171✔
258
259	local function detectFormat (doc, filename)
260	-- Preload default reader types so content detection has something to work with
261	if #SILE.inputters == 0 then	172✔
262	for _, format in ipairs(preloadedinputters) do	688✔
263	local _ = SILE.inputters[format]	516✔
264	end
265	end
266	local contentDetectionOrder = {}	172✔
267	for _, inputter in pairs(SILE.inputters) do	688✔
268	if inputter.order then table.insert(contentDetectionOrder, inputter) end	516✔
269	end
270	table.sort(contentDetectionOrder, function (a, b) return a.order < b.order end)	688✔
271	local initialround = filename and 1 or 2	172✔
272	for round = initialround, 3 do	175✔
273	for _, inputter in ipairs(contentDetectionOrder) do	349✔
274	SU.debug("inputter", "Running content type detection round", round, "with", inputter._name)	346✔
275	if inputter.appropriate(round, filename, doc) then	692✔
276	return inputter._name	172✔
277	end
278	end
279	end
280	SU.error(("Unable to pick inputter to process input from '%s'"):format(filename))	×
281	end
282
283	function SILE.processString (doc, format, filename, options)	342✔
284	local cpf
285	if not filename then	240✔
286	cpf = SILE.currentlyProcessingFile	68✔
287	local caller = debug.getinfo(2, "Sl")	68✔
288	SILE.currentlyProcessingFile = caller.short_src..":"..caller.currentline	68✔
289	end
290	-- In the event we're processing the master file and the user gave us
291	-- a specific inputter to use, use it at the exclusion of all content type
292	-- detection
293	local inputter
294	if filename and pl.path.splitext(pl.path.normcase(filename)) == SILE.masterFilename and SILE.inputter then	584✔
295	inputter = SILE.inputter	×
296	else
297	format = format or detectFormat(doc, filename)	412✔
298	if not SILE.quiet then	240✔
299	io.stderr:write(("<%s> as %s\n"):format(SILE.currentlyProcessingFile, format))	240✔
300	end
301	inputter = SILE.inputters[format](options)	480✔
302	-- If we did content detection and this is the master file, save the
303	-- inputter for posterity and postambles
304	if filename and pl.path.splitext(pl.path.normcase(filename)) == SILE.masterFilename then	584✔
305	SILE.inputter = inputter	171✔
306	end
307	end
308	local pId = SILE.traceStack:pushDocument(SILE.currentlyProcessingFile, doc)	240✔
309	inputter:process(doc)	240✔
310	SILE.traceStack:pop(pId)	240✔
311	if cpf then SILE.currentlyProcessingFile = cpf end	240✔
312	end
313
314	function SILE.processFile (filename, format, options)	342✔
315	local doc
316	if filename == "-" then	172✔
317	filename = "STDIN"	×
318	SILE.masterFilename = "STDIN"	×
319	doc = io.stdin:read("*a")	×
320	else
321	-- Turn slashes around in the event we get passed a path from a Windows shell
322	filename = filename:gsub("\\", "/")	172✔
323	if not SILE.masterFilename then	172✔
324	-- Strip extension
325	SILE.masterFilename = string.match(filename, "(.+)%..-$") or filename	171✔
326	end
327	if SILE.masterFilename and not SILE.masterDir then	172✔
328	SILE.masterDir = SILE.masterFilename:match("(.-)[^%/]+$")	171✔
329	end
330	if SILE.masterDir and SILE.masterDir:len() >= 1 then	344✔
331	_G.extendSilePath(SILE.masterDir)	172✔
332	end
333	filename = SILE.resolveFile(filename)	344✔
334	if not filename then	172✔
335	SU.error("Could not find file")	×
336	end
337	local mode = lfs.attributes(filename).mode	172✔
338	if mode ~= "file" and mode ~= "named pipe" then	172✔
339	SU.error(filename.." isn't a file or named pipe, it's a ".. mode .."!")	×
340	end
341	if SILE.makeDeps then	172✔
342	SILE.makeDeps:add(filename)	172✔
343	end
344	local file, err = io.open(filename)	172✔
345	if not file then	172✔
346	print("Could not open "..filename..": "..err)	×
347	return	×
348	end
349	doc = file:read("*a")	172✔
350	end
351	local cpf = SILE.currentlyProcessingFile	172✔
352	SILE.currentlyProcessingFile = filename	172✔
353	local pId = SILE.traceStack:pushDocument(filename, doc)	172✔
354	local ret = SILE.processString(doc, format, filename, options)	172✔
355	SILE.traceStack:pop(pId)	172✔
356	SILE.currentlyProcessingFile = cpf	172✔
357	return ret	172✔
358	end
359
360	-- TODO: this probably needs deprecating, moved here just to get out of the way so
361	-- typesetters classing works as expected
362	SILE.typesetNaturally = function (frame, func)	171✔
363	local saveTypesetter = SILE.typesetter	94✔
364	if SILE.typesetter.frame then SILE.typesetter.frame:leave(SILE.typesetter) end	94✔
365	SILE.typesetter = SILE.typesetters.base(frame)	188✔
366	SILE.settings:temporarily(func)	94✔
367	SILE.typesetter:leaveHmode()	94✔
368	SILE.typesetter:chuck()	94✔
369	SILE.typesetter.frame:leave(SILE.typesetter)	94✔
370	SILE.typesetter = saveTypesetter	94✔
371	if SILE.typesetter.frame then SILE.typesetter.frame:enter(SILE.typesetter) end	94✔
372	end
373
374	-- Sort through possible places files could be
375	function SILE.resolveFile (filename, pathprefix)	342✔
376	local candidates = {}	177✔
377	-- Start with the raw file name as given prefixed with a path if requested
378	if pathprefix then candidates[#candidates+1] = pl.path.join(pathprefix, "?") end	177✔
379	-- Also check the raw file name without a path
380	candidates[#candidates+1] = "?"	177✔
381	-- Iterate through the directory of the master file, the SILE_PATH variable, and the current directory
382	-- Check for prefixed paths first, then the plain path in that fails
383	if SILE.masterDir then	177✔
384	for path in SU.gtoke(SILE.masterDir..";"..tostring(os.getenv("SILE_PATH")), ";") do	885✔
385	if path.string and path.string ~= "nil" then	531✔
386	if pathprefix then candidates[#candidates+1] = pl.path.join(path.string, pathprefix, "?") end	177✔
387	candidates[#candidates+1] = pl.path.join(path.string, "?")	525✔
388	end
389	end
390	end
391	-- Return the first candidate that exists, also checking the .sil suffix
392	local path = table.concat(candidates, ";")	177✔
393	local resolved, err = package.searchpath(filename, path, "/")	177✔
394	if resolved then	177✔
395	if SILE.makeDeps then SILE.makeDeps:add(resolved) end	354✔
396	else
397	SU.warn(("Unable to find file '%s': %s"):format(filename, err))	×
398	end
399	return resolved	177✔
400	end
401
402	function SILE.call (command, options, content)	342✔
403	options = options or {}	4,516✔
404	content = content or {}	4,516✔
405	if SILE.traceback and type(content) == "table" and not content.lno then	4,516✔
406	-- This call is from code (no content.lno) and we want to spend the time
407	-- to determine everything we need about the caller
408	local caller = debug.getinfo(2, "Sl")	×
409	content.file, content.lno = caller.short_src, caller.currentline	×
410	end
411	local pId = SILE.traceStack:pushCommand(command, content, options)	4,516✔
412	if not SILE.Commands[command] then SU.error("Unknown command " .. command) end	4,516✔
413	local result = SILE.Commands[command](options, content)	4,516✔
414	SILE.traceStack:pop(pId)	4,516✔
415	return result	4,516✔
416	end
417
418	function SILE.registerCommand (name, func, help, pack, cheat)	342✔
419	local class = SILE.documentState.documentClass	1,049✔
420	if not cheat then	1,049✔
421	SU.deprecated("SILE.registerCommand", "class:registerCommand", "0.14.0", "0.16.0",	24✔
422	[[Commands are being scoped to the document classes they are loaded into rather than being globals.]])	12✔
423	end
424	-- Shimming until we have all scope cheating removed from core
425	if not cheat or not class or class.type ~= "class" then	1,049✔
426	return SILE.classes.base.registerCommand(nil, name, func, help, pack)	1,218✔
427	end
428	return class:registerCommand(name, func, help, pack)	2✔
429	end
430
431	function SILE.setCommandDefaults (command, defaults)	342✔
432	local oldCommand = SILE.Commands[command]	×
433	SILE.Commands[command] = function (options, content)	×
434	for k, v in pairs(defaults) do	×
435	options[k] = options[k] or v	×
436	end
437	return oldCommand(options, content)	×
438	end
439	end
440
441	function SILE.registerUnit (unit, spec)	342✔
442	-- If a unit exists already, clear it first so we get fresh meta table entries, see #1607
443	if SILE.units[unit] then	12✔
444	SILE.units[unit] = nil	×
445	end
446	SILE.units[unit] = spec	12✔
447	end
448
449	function SILE.paperSizeParser (size)	342✔
450	-- SU.deprecated("SILE.paperSizeParser", "SILE.papersize", "0.10.0", nil)
451	return SILE.papersize(size)	×
452	end
453
454	function SILE.finish ()	342✔
455	if SILE.makeDeps then	171✔
456	SILE.makeDeps:write()	171✔
457	end
458	SILE.documentState.documentClass:finish()	171✔
459	SILE.font.finish()	171✔
460	runEvals(SILE.input.evaluateAfters, "evaluate-after")	171✔
461	if not SILE.quiet then	171✔
462	io.stderr:write("\n")	171✔
463	end
464	if SU.debugging("profile") then	342✔
465	ProFi:stop()	×
466	ProFi:writeReport(SILE.masterFilename..'.profile.txt')	×
467	end
468	if SU.debugging("versions") then	342✔
469	SILE.shaper:debugVersions()	171✔
470	end
471	end
472
473	-- Internal libraries that run core SILE functions on load
474	SILE.settings = require("core.settings")()	342✔
475	require("core.hyphenator-liang")	171✔
476	require("core.languages")	171✔
477	require("core.packagemanager")	171✔
478	SILE.linebreak = require("core.break")	171✔
479	require("core.frame")	171✔
480	SILE.cli = require("core.cli")	171✔
481	SILE.repl = require("core.repl")	171✔
482	SILE.font = require("core.font")	171✔
483
484	-- For warnings and shims scheduled for removal that are easier to keep track
485	-- of when they are not spead across so many locations...
486	require("core/deprecations")	171✔
487
488	return SILE	171✔

sile-typesetter / sile / 5017842917

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