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-- texdoclib-cli.tlu: command line interfaces for texdoc
--
-- The TeX Live Team, GPLv3, see texdoclib.tlu for details
-- dependencies
local texdoc = {
const = require 'texdoclib-const',
util = require 'texdoclib-util',
config = require 'texdoclib-config',
search = require 'texdoclib-search',
view = require 'texdoclib-view',
}
-- shortcuts
local M = {}
local C = texdoc.const
local err_print = texdoc.util.err_print
-------------------------- parsing options --------------------------
-- modified Alternative GetOpt
-- cf. http://lua-users.org/wiki/AlternativeGetOpt
local function getopt(arg, options)
local tmp = nil
local tab = {}
local saved_arg = {table.unpack(arg)}
for k, v in ipairs(saved_arg) do
if string.sub(v, 1, 2) == '--' then
table.remove(arg, 1)
local x = string.find(v, '=', 1, true)
if x then
table.insert(tab, {string.sub(v, 3, x - 1), string.sub(v, x+1)})
else
table.insert(tab, {string.sub(v, 3), true})
end
elseif string.sub(v, 1, 1) == '-' then
table.remove(arg, 1)
local y = 2
local l = string.len(v)
local jopt
while (y <= l) do
jopt = string.sub(v, y, y)
if string.find(options, jopt, 1, true) then
if y < l then
tmp = string.sub(v, y + 1)
y = l
else
table.remove(arg, 1)
tmp = saved_arg[k + 1]
end
-- check the existence of an argument
if not tmp then
err_print('error',
'Option -%s requires an argument.', jopt)
os.exit(C.exit_error)
end
if string.match(tmp, '^%-') then
table.insert(tab, {jopt, false})
else
table.insert(tab, {jopt, tmp})
end
else
table.insert(tab, {jopt, true})
end
y = y + 1
end
else
if tmp then tmp = nil else break end
end
end
return tab
end
local function parse_options()
local curr_arg
local cl_config = {}
local function insert_cl_config(key, val, opt_name)
table.insert(cl_config, {key, val, opt_name})
end
-- actual parsing
opts = getopt(arg, 'cd')
for _, tp in ipairs(opts) do
local k, v = tp[1], tp[2]
if #k == 1 then
curr_arg = '-' .. k
else
curr_arg = '--' .. k
end
-- action
if (curr_arg == '-h') or (curr_arg == '--help') then
return true, 'help', cl_config
elseif (curr_arg == '-V') or (curr_arg == '--version') then
return true, 'version', cl_config
elseif (curr_arg == '-f') or (curr_arg == '--files') then
return true, 'files', cl_config
elseif curr_arg == '--just-view' then
return true, 'view', cl_config
-- mode
elseif (curr_arg == '-w') or (curr_arg == '--view') then
insert_cl_config('mode', 'view', curr_arg)
elseif (curr_arg == '-m') or (curr_arg == '--mixed') then
insert_cl_config('mode', 'mixed', curr_arg)
elseif (curr_arg == '-l') or (curr_arg == '--list') then
insert_cl_config('mode', 'list', curr_arg)
elseif (curr_arg == '-s') or (curr_arg == '--showall') then
insert_cl_config('mode', 'showall', curr_arg)
-- interaction
elseif (curr_arg == '-I') or (curr_arg == '--nointeract') then
insert_cl_config('interact_switch', 'false', curr_arg)
elseif (curr_arg == '-i') or (curr_arg == '--interact') then
insert_cl_config('interact_switch', 'true', curr_arg)
-- output format
elseif (curr_arg == '-M') or (curr_arg == '--machine') then
insert_cl_config('machine_switch', 'true', curr_arg)
-- config
elseif curr_arg == '-c' then
insert_cl_config(v, nil, curr_arg)
-- debug
elseif (curr_arg == '-d') or (curr_arg == '--debug') then
if v == true then v = 'all' end
insert_cl_config('debug_list', v, curr_arg)
elseif curr_arg == '-D' then
insert_cl_config('debug_list', 'all', curr_arg)
-- verbosity
elseif (curr_arg == '-q') or (curr_arg == '--quiet') then
insert_cl_config('verbosity_level', C.min_verbosity, curr_arg)
elseif (curr_arg == '-v') or (curr_arg == '--verbose') then
insert_cl_config('verbosity_level', C.max_verbosity, curr_arg)
-- having trouble
else
err_print('error', 'unknown option: ' .. curr_arg)
err_print('error', C.error_msg)
return false
end
end
return true, action, cl_config
end
-------------------------- process execution --------------------------
-- handling actions
local function do_action(action)
if action == 'help' then
texdoc.util.print_usage()
os.exit(C.exit_ok)
elseif action == 'version' then
print(string.format(
'%s %s (%s)', C.progname, C.version, C.release_date) ..
'\n\n' .. C.copyright_msg)
os.exit(C.exit_ok)
elseif action == 'files' then
print(texdoc.util.w32_path(C.fullname) .. ' ' .. C.version)
texdoc.config.show_config_files(true)
os.exit(C.exit_ok)
elseif action == 'view' then
if not arg[1] then
err_print('error', 'Missing file operand to --just-view.')
err_print('error', C.error_msg)
os.exit(C.exit_usage)
end
texdoc.view.view_file(arg[1])
os.exit(C.exit_ok)
end
end
-- the main loop
local function do_texdoc()
texdoc.search.init_databases()
for _, docname in ipairs(arg) do
-- do we have more then one argument?
local multiarg = not not arg[2]
-- get results
local doclist = texdoc.search.get_doclist(docname)
-- deliver results to the user
texdoc.view.deliver_results(docname, doclist, multiarg)
end
end
-------------------------- the main function --------------------------
function M.exec()
-- parsing command line options
local ok, action, cl_config = parse_options()
if not ok then
os.exit(C.exit_usage)
end
-- setup config and alias
texdoc.config.setup_config_and_alias(cl_config)
-- special action
do_action(action)
-- do we actually have arguments?
if not arg[1] then
err_print('error', 'No action specified.')
err_print('error', C.error_msg)
os.exit(C.exit_usage)
end
-- the main feature
do_texdoc()
os.exit(C.exit_ok)
end
return M
-- vim: ft=lua:
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