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llmk.lua
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llmk.lua
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#!/usr/bin/env texlua
--
-- This is file `llmk.lua'.
--
-- Copyright 2018-2020 Takuto ASAKURA (wtsnjp)
-- GitHub: https://github.com/wtsnjp
-- Twitter: @wtsnjp
--
-- This sofware is released under the MIT License.
--
local llmk = {} -- the module table
----------------------------------------
do -- The "core" submodule
local M = {}
-- option flags (default)
M.debug = {
config = false,
parser = false,
run = false,
fdb = false,
programs = false,
}
M.verbosity_level = 1
M.silent = false
M.dry_run = false
llmk.core = M
end
----------------------------------------
do -- The "const" submodule
local M = {}
-- program information
M.prog_name = 'llmk'
M.version = '0.2.0'
M.copyright = 'Copyright 2018-2020'
M.author = 'Takuto ASAKURA (wtsnjp)'
M.llmk_toml = 'llmk.toml'
-- exit codes
M.exit_ok = 0
M.exit_error = 1
M.exit_failure = 2
M.exit_parser = 3
M.exit_type = 4
-- config item specification
M.top_level_spec = {
-- <program> = {<type>, <default value>}
bibtex = {'string', 'bibtex'},
clean_files = {'[string]', {
'%B.aux', '%B.bbl', '%B.bcf', '%B-blx.bib', '%B.blg', '%B.fls',
'%B.idx', '%B.ilg', '%B.ind', '%B.log', '%B.nav', '%B.out',
'%B.run.xml', '%B.snm', '%B.toc', '%B.vrb',
}},
clobber_files = {'[string]', {'%B.dvi', '%B.pdf', '%B.ps', '%B.synctex.gz'}},
dvipdf = {'string', 'dvipdfmx'},
dvips = {'string', 'dvips'},
extra_clean_files = {'[string]', {}},
latex = {'string', 'lualatex'},
llmk_version = {'string', nil},
makeindex = {'string', 'makeindex'},
max_repeat = {'integer', 5},
ps2pdf = {'string', 'ps2pdf'},
sequence = {'[string]', {'latex', 'bibtex', 'makeindex', 'dvipdf'}},
source = {'*[string]', nil},
}
M.program_spec = {
-- <item> = {<type>, {<specifiers allowed>, <default value>}}
args = {'*[string]', {true, {'%T'}}},
aux_file = {'string', {true, nil}},
aux_empty_size = {'integer', {false, nil}},
command = {'string', {false, ''}}, -- '' default because it must be string
generated_target = {'boolean', {false, false}},
opts = {'*[string]', {true, nil}},
postprocess = {'string', {false, nil}},
target = {'string', {true, '%S'}},
}
M.default_programs = {
bibtex = {
target = '%B.bib',
args = {'%B'}, -- "%B.bib" will result in an error
postprocess = 'latex',
},
dvipdf = {
target = '%B.dvi',
generated_target = true,
},
dvips = {
target = '%B.dvi',
generated_target = true,
},
latex = {
opts = {
'-interaction=nonstopmode',
'-file-line-error',
'-synctex=1',
},
aux_file = '%B.aux',
aux_empty_size = 9, -- "\\relax \n" is empty
},
makeindex = {
target = '%B.idx',
generated_target = true,
postprocess = 'latex',
},
ps2pdf = {
target = '%B.ps',
generated_target = true,
},
}
llmk.const = M
end
----------------------------------------
do -- The "util" submodule
local M = {}
local function log(label, msg, ...)
local prefix = llmk.const.prog_name .. ' ' .. label .. ': '
io.stderr:write(prefix .. msg:format(...) .. '\n')
end
function M.err_print(err_type, msg, ...)
if err_type == 'error' then
-- error must be reported
elseif err_type == 'info' then
if llmk.core.verbosity_level < 2 then return end
elseif err_type == 'warning' then
if llmk.core.verbosity_level < 1 then return end
end
log(err_type, msg, ...)
end
function M.dbg_print(dbg_type, msg, ...)
if llmk.core.debug[dbg_type] then
log('debug-' .. dbg_type, msg, ...)
end
end
function M.dbg_print_table(dbg_type, table)
if not llmk.core.debug[dbg_type] then return end
local function helper(tab, ind)
local function pp(msg, ...)
M.dbg_print(dbg_type, string.rep(' ', ind) .. msg, ...)
end
for k, v in pairs(tab) do
if type(v) == 'table' then
pp(k .. ':')
helper(v, ind + 2)
elseif type(v) == 'string' then
pp(k .. ': "%s"', v)
else -- number, boolean, etc.
pp(k .. ': %s', tostring(v))
end
end
end
helper(table, 2)
end
-- return the filename if exits, even if the ".tex" extension is omitted
-- otherwise return nil
local lfs = require("lfs")
-- Replace config param to filename
function M.replace_specifiers(str, source, target)
local tmp = '/' .. source
local basename = tmp:match('^.*/(.*)%..*$')
str = str:gsub('%%S', source)
str = str:gsub('%%T', target)
if basename then
str = str:gsub('%%B', basename)
else
str = str:gsub('%%B', source)
end
return str
end
llmk.util = M
end
----------------------------------------
do -- The "checker" submodule
local M = {}
local function checked_value(k, v, expected)
local function error_if_wrong_type(val, t)
if type(val) ~= t then
llmk.util.err_print('error',
'[Type Error] Key "%s" must have value of type %s', k, expected)
os.exit(llmk.const.exit_type)
end
end
if expected == 'integer' then
error_if_wrong_type(v, 'number')
elseif expected == 'boolean' then
error_if_wrong_type(v, 'boolean')
elseif expected == 'string' then
error_if_wrong_type(v, 'string')
elseif expected == '[string]' then
error_if_wrong_type(v, 'table')
if v[1] ~= nil then -- it is not an empty array
error_if_wrong_type(v[1], 'string')
end
elseif expected == '*[string]' then
if type(v) == 'string' then
v = {v}
else
error_if_wrong_type(v, 'table')
if v[1] ~= nil then -- it is not an empty array
error_if_wrong_type(v[1], 'string')
end
end
end
return v
end
local function type_check(tab)
local new_top = {}
for k, v in pairs(tab) do
if k == 'programs' then
if type(v) ~= 'table' then
llmk.util.err_print('error', '[Type Error] Key "programs" must be a table')
os.exit(llmk.const.exit_type)
end
local new_prog = {}
for p_name, p_val in pairs(v) do
if type(p_val) ~= 'table' then
llmk.util.err_print('error',
'[Type Error] Key "programs.%s" must be a table', p_name)
os.exit(llmk.const.exit_type)
else
new_prog[p_name] = {}
for ik, iv in pairs(p_val) do
if not llmk.const.program_spec[ik] then
llmk.util.err_print('warning',
'Program key "%s" is unknown; ignoring it', ik)
else
expected = llmk.const.program_spec[ik][1]
new_prog[p_name][ik] = checked_value(ik, iv, expected)
end
end
end
end
new_top[k] = new_prog
else
if not llmk.const.top_level_spec[k] then
llmk.util.err_print('warning',
'Top-level key "%s" is unknown; ignoring it', k)
else
expected = llmk.const.top_level_spec[k][1]
new_top[k] = checked_value(k, v, expected)
end
end
end
return new_top
end
local function version_check(given_version)
if not given_version then -- nothing to do
return
end
-- parse the given version to the llmk_version key
local given_major, given_minor = given_version:match('^(%d+)%.(%d+)')
if not given_major or not given_minor then
llmk.util.err_print('warning', 'In valid llmk_version: ' .. given_version)
return
else
given_major, given_minor = tonumber(given_major), tonumber(given_minor)
end
-- the version of this program
local major, minor = llmk.const.version:match('^(%d+)%.(%d+)')
major, minor = tonumber(major), tonumber(minor)
-- warn if this program is older than the given version
if major < given_major or (major == given_major and minor < given_minor) then
llmk.util.err_print('warning',
'This program (v%d.%d) is older than the specified llmk_version (v%d.%d)',
major, minor, given_major, given_minor)
end
-- Note: no breaking change has been made (yet)
end
function M.check(tab)
local new_tab = type_check(tab)
version_check(new_tab.llmk_version)
return new_tab
end
llmk.checker = M
end
----------------------------------------
do -- The "config" submodule
local M = {}
local function init_config()
local config = {}
for k, v in pairs(llmk.const.top_level_spec) do
config[k] = v[2]
end
config.programs = llmk.const.default_programs
return config
end
-- copy command name from top level
local function fetch_from_top_level(config, name)
if config.programs[name] then
if not config.programs[name].command and config[name] then
config.programs[name].command = config[name]
end
end
return config
end
local function update_config(config, tab)
-- merge the table from TOML
local function merge_table(tab1, tab2)
for k, v in pairs(tab2) do
if k == 'programs' then
local programs1 = tab1[k]
local programs2 = tab2[k]
for i_k, i_v in pairs(programs2) do
if type(programs1[i_k]) == 'table' then
for ii_k, ii_v in pairs(programs2[i_k]) do
programs1[i_k][ii_k] = ii_v
end
else
programs1[i_k] = i_v
end
end
else
tab1[k] = v
end
end
return tab1
end
local config = merge_table(config, tab)
-- set essential program names from top-level
local prg_names = {'latex', 'bibtex', 'makeindex', 'dvipdf', 'dvips', 'ps2pdf'}
for _, name in pairs(prg_names) do
config = fetch_from_top_level(config, name)
end
-- show config table (for debug)
llmk.util.dbg_print('config', 'The final config table is as follows:')
llmk.util.dbg_print_table('config', config)
return config
end
function M.fetch_from_latex_source(fn)
local tab
local config = init_config()
-- get TOML field and parse it
local toml, line = llmk.parser.get_toml(fn)
if toml == '' then
llmk.util.err_print('warning',
'Neither TOML field nor magic comment is found in "%s"; ' ..
'using default config', fn)
end
tab = llmk.parser.parse_toml(toml, {fn, line})
-- check input and merge it to the config
tab = llmk.checker.check(tab)
config = update_config(config, tab)
return config
end
function M.fetch_from_llmk_toml()
local tab
local config = init_config()
local f = io.open(llmk.const.llmk_toml)
if f ~= nil then
local toml = f:read('*all')
tab = llmk.parser.parse_toml(toml, {llmk.const.llmk_toml, 1})
f:close()
else
llmk.util.err_print('error', 'No target specified and no %s found',
llmk.const.llmk_toml)
os.exit(llmk.const.exit_error)
end
-- check input and merge it to the config
tab = llmk.checker.check(tab)
config = update_config(config, tab)
return config
end
llmk.config = M
end
----------------------------------------
do -- The "parser" submodule
--[[
This TOML parser is modified version of toml.lua
- Copyright 2017 Jonathan Stoler
- Licensed under MIT
https://github.com/jonstoler/lua-toml/blob/master/LICENSE
]]
local M = {}
function M.parse_toml(toml, file_info)
-- basic local variables
local ws = '[\009\032]'
local nl = '[\10\13\10]'
local buffer = ''
local cursor = 1
local line = 0
local res = {}
local obj = res
-- basic local functions
local function parser_err(msg)
local function get_toml_str(nol)
local pattern = string.format('([^%s]*)%s', nl:sub(2, -2), nl)
local l = 0
for cur_line in toml:gmatch(pattern) do
if l == nol then
return cur_line
end
l = l + 1
end
end
llmk.util.err_print('error', '[Parse Error] %s', msg)
llmk.util.err_print('error', '--> %s:%d: %s',
file_info[1], file_info[2] + line, get_toml_str(line))
os.exit(llmk.const.exit_parser)
end
local function char(n)
n = n or 0
return toml:sub(cursor + n, cursor + n)
end
local function step(n)
n = n or 1
for i = 0, n-1 do
if char(i):match(nl) then
line = line + 1
end
end
cursor = cursor + n
end
local function skip_ws()
while(char():match(ws)) do
step()
end
end
local function trim(str)
return str:gsub('^%s*(.-)%s*$', '%1')
end
local function bounds()
return cursor <= toml:len()
end
-- parse functions for each type
local function parse_string()
-- TODO: multiline
local del = char() -- ' or "
local str = ''
-- all available escape characters
local escape = {
b = "\b",
t = "\t",
n = "\n",
f = "\f",
r = "\r",
['"'] = '"',
["\\"] = "\\",
}
-- utf function from http://stackoverflow.com/a/26071044
-- converts \uXXX into actual unicode
local function utf(char)
local bytemarkers = {{0x7ff, 192}, {0xffff, 224}, {0x1fffff, 240}}
if char < 128 then return string.char(char) end
local charbytes = {}
for bytes, vals in pairs(bytemarkers) do
if char <= vals[1] then
for b = bytes + 1, 2, -1 do
local mod = char % 64
char = (char - mod) / 64
charbytes[b] = string.char(128 + mod)
end
charbytes[1] = string.char(vals[2] + char)
break
end
end
return table.concat(charbytes)
end
-- skip the quotes
step()
while(bounds()) do
-- end of string
if char() == del then
step()
break
end
if char():match(nl) then
parser_err('Single-line string cannot contain line break')
end
if del == '"' and char() == '\\' then -- process escape characters
if escape[char(1)] then
-- normal escape
str = str .. escape[char(1)]
step(2) -- go past backslash and the character
elseif char(1) == 'u' then
-- utf-16
step()
local uni = char(1) .. char(2) .. char(3) .. char(4)
step(5)
uni = tonumber(uni, 16)
if (uni >= 0 and uni <= 0xd7ff) and not (uni >= 0xe000 and uni <= 0x10ffff) then
str = str .. utf(uni)
else
parser_err('Unicode escape is not a Unicode scalar')
end
elseif char(1) == 'U' then
-- utf-32
step()
local uni = char(1) .. char(2) .. char(3) .. char(4) ..
char(5) .. char(6) .. char(7) .. char(8)
step(9)
uni = tonumber(uni, 16)
if (uni >= 0 and uni <= 0xd7ff) and not (uni >= 0xe000 and uni <= 0x10ffff) then
str = str .. utf(uni)
else
parser_err('Unicode escape is not a Unicode scalar')
end
else
parser_err('Invalid escape')
end
else -- literal string; leave as it is
str = str .. char()
step()
end
end
return str
end
local function parse_number()
-- TODO: exp, date
local num = ''
while(bounds()) do
if char():match('[%+%-%.eE_0-9]') then
if char() ~= '_' then
num = num .. char()
end
elseif char():match(nl) then
break
elseif char():match(ws) or char() == '#' then
break
else
parser_err('Invalid number')
end
step()
end
return tonumber(num)
end
local get_value
local function parse_array()
step()
skip_ws()
local a_type
local array = {}
while(bounds()) do
if char() == ']' then
break
elseif char():match(nl) then
step()
skip_ws()
elseif char() == '#' then
while(bounds() and not char():match(nl)) do
step()
end
else
local v = get_value()
if not v then break end
if a_type == nil then
a_type = type(v)
elseif a_type ~= type(v) then
parser_err('Mixed types in array')
end
array = array or {}
table.insert(array, v)
if char() == ',' then
step()
end
skip_ws()
end
end
step()
return array
end
local function parse_boolean()
local bool
if toml:sub(cursor, cursor + 3) == 'true' then
step(4)
bool = true
elseif toml:sub(cursor, cursor + 4) == 'false' then
step(5)
bool = false
else
parser_err('Invalid primitive')
end
skip_ws()
if char() == '#' then
while(not char():match(nl)) do
step()
end
end
return bool
end
-- judge the type and get the value
get_value = function()
if (char() == '"' or char() == "'") then
return parse_string()
elseif char():match('[%+%-0-9]') then
return parse_number()
elseif char() == '[' then
return parse_array()
-- TODO: array of table, inline table
else
return parse_boolean()
end
end
-- main loop of parser
while(cursor <= toml:len()) do
-- ignore comments and whitespace
if char() == '#' then
while(not char():match(nl)) do
step()
end
end
if char() == '=' then
step()
skip_ws()
-- prepare the key
local key = trim(buffer)
buffer = ''
if key == '' then
parser_err('Empty key name')
elseif obj[key] then
-- duplicate keys are not allowed
parser_err('Cannot redefine key "' .. key .. '"')
end
local value = get_value()
if value ~= nil then
obj[key] = value
--dbg_print('parser', 'Entry "' .. key .. ' = ' .. value .. '"')
end
-- skip whitespace and comments
skip_ws()
if char() == '#' then
while(bounds() and not char():match(nl)) do
step()
end
end
-- if garbage remains on this line, raise an error
if not char():match(nl) and cursor < toml:len() then
parser_err('Invalid primitive')
end
elseif char() == '[' then
buffer = ''
step()
local table_array = false
if char() == '[' then
table_array = true
step()
end
obj = res
local function process_key(is_last)
is_last = is_last or false
buffer = trim(buffer)
if buffer == '' then
parser_err('Empty table name')
end
if is_last and obj[buffer] and not table_array and #obj[buffer] > 0 then
parser_err('Cannot redefine tabel')
end
if table_array then
if obj[buffer] then
obj = obj[buffer]
if is_last then
table.insert(obj, {})
end
obj = obj[#obj]
else
obj[buffer] = {}
obj = obj[buffer]
if is_last then
table.insert(obj, {})
obj = obj[1]
end
end
else
obj[buffer] = obj[buffer] or {}
obj = obj[buffer]
end
end
while(bounds()) do
if char() == ']' then
if table_array then
if char(1) ~= ']' then
parser_err('Mismatching brackets')
else
step()
end
end
step()
process_key(true)
buffer = ''
break
--elseif char() == '"' or char() == "'" then
-- TODO: quoted keys
elseif char() == '.' then
step()
process_key()
buffer = ''
else
buffer = buffer .. char()
step()
end
end
buffer = ''
--elseif (char() == '"' or char() == "'") then
-- TODO: quoted keys
end
-- put the char to the buffer and proceed
buffer = buffer .. (char():match(nl) and '' or char())
step()
end
return res
end
function M.get_toml(fn)
local toml = ''
local toml_field = false
local toml_source = fn
local f = io.open(toml_source)
llmk.util.dbg_print('config', 'Looking for config in the file "%s"', toml_source)
local ts_tmp
local ts_latex
local ts_bibtex
local first_line = true
local shebang
local line = 0
local start_pos = -1
for l in f:lines() do
line = line + 1
-- 1. llmk-style TOML field
if string.match(l, '^%s*%%%s*%+%+%++%s*$') then
-- NOTE: only topmost field is valid
if not toml_field then
toml_field = true
start_pos = line + 1
else
llmk.util.dbg_print('config', 'TOML field found')
break
end
else
if toml_field then
local match = string.match(l, '^%s*%%%s*(.-)%s*$')
if match == nil then
llmk.util.err_print('error', 'Encounter invalid line in TOML field')
os.exit(llmk.const.exit_error)
else
toml = toml .. match .. '\n'
end
end
end
-- 2. TeXShop directives
ts_tmp = string.match(l, '^%s*%%%s*!%s*TEX%s+program%s*=%s*(.-)%s*$') or
string.match(l, '^%s*%%%s*!%s*TEX%s+TS%-program%s*=%s*(.-)%s*$')
if ts_tmp then
ts_latex = ts_latex or ts_tmp
end
ts_tmp = string.match(l, '^%s*%%%s*!%s*BIB%s+program%s*=%s*(.-)%s*$') or
string.match(l, '^%s*%%%s*!%s*BIB%s+TS%-program%s*=%s*(.-)%s*$')
if ts_tmp then
ts_bibtex = ts_bibtex or ts_tmp
end
-- 3. shebang
if first_line then
first_line = false
shebang = string.match(l, '^%s*%%#!%s*(.-)%s*$')
end
end
f:close()
-- convert magic or shebang to TOML
if toml == '' and (ts_latex or ts_bibtex) then
llmk.util.dbg_print('config', 'TeXShop directives found')
if ts_latex then
toml = toml .. 'latex = "' .. ts_latex .. '"\n'
end
if ts_bibtex then
toml = toml .. 'bibtex = "' .. ts_bibtex .. '"\n'
end
elseif toml == '' and shebang then
llmk.util.dbg_print('config', 'Shebang found')
toml = 'latex = "' .. shebang .. '"\n'
end
return toml, start_pos
end
llmk.parser = M
end
----------------------------------------
do -- The "runner" submodule
local M = {}
-- dependencies
local lfs = require 'lfs'
local md5 = require 'md5'
-- module local variable
local start_time = os.time()
local function table_copy(org)
local copy
if type(org) == 'table' then
copy = {}
for org_key, org_value in next, org, nil do
copy[table_copy(org_key)] = table_copy(org_value)
end
setmetatable(copy, table_copy(getmetatable(org)))
else -- number, string, boolean, etc.
copy = org
end
return copy
end
local function setup_programs(fn, config)
--[[Setup the programs table for each sequence.
Collecting tables of only related programs, which appears in the
`config.sequence` or `prog.postprocess`, and replace all specifiers.
Args:
fn (str): the input FILE name
Returns:
table of program tables
]]
local prognames = {}
local new_programs = {}
local programs = config.programs
-- collect related programs
local function add_progname(name)
-- is the program known?
if not programs[name] then
llmk.util.err_print('error', 'Unknown program "%s" is in the sequence', name)
os.exit(llmk.const.exit_error)
end
-- if not new, no addition
for _, c in pairs(prognames) do
if c == name then
return
end
end
-- if new, add it!
prognames[#prognames + 1] = name
end
for _, name in pairs(config.sequence) do
-- add the program name
add_progname(name)
-- add postprocess program if any
local postprocess = programs[name].postprocess
if postprocess then
add_progname(postprocess)
end
end
-- setup the programs
for _, name in ipairs(prognames) do
local prog = table_copy(programs[name])
-- setup the `prog.target`
local cur_target
if prog.target == nil then
-- the default value of `prog.target` is `fn`
cur_target = fn
else
-- here, %T should be replaced by `fn`
cur_target = llmk.util.replace_specifiers(prog.target, fn, fn)
end
prog.target = cur_target
-- initialize other items
for k, v in pairs(llmk.const.program_spec) do
if k ~= 'target' then -- target is a special case: already treated
if prog[k] == nil then
if type(v[2][2]) == 'table' then
prog[k] = table_copy(v[2][2])
else