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--- constants.tlu: global "constants" for texdoc.
---
--- Manuel Pégourié-Gonnard, GPLv3, see texdoclib.tlu for details
-
--- use an empty environment that will become texdoc_env.C (see EOF)
-local constants = {}
-local kpse = kpse
-local setfenv = setfenv
-local texdoc_env = getfenv()
-setfenv(1, constants)
-
--- BEGIN constants
-
--- progname and version
-fullname = kpse.find_file('texdoc/texdoclib', 'lua')
-progname = 'texdoc'
-version = '0.84'
-
--- make sure to update setup_config_from_cl() accordingly
--- and set a default value in setup_config_from_defaults() if relevant
-usage_msg = [[
-Usage: texdoc [OPTION]... NAME...
- or: texdoc ACTION
-
-Try to find appropriate TeX documentation for the specified NAME(s).
-Alternatively, perform the given ACTION and exit.
-
-Current settings:
-
-Actions:
-Options:
- -w, --view Use view mode: start a viewer. (default)
- -m, --mixed Use mixed mode (view or list).
- -l, --list Use list mode: show a list of results.
- -s, --showall Use showall mode: show also "bad" results.
-
- -i, --interact Use interactive menus. (default)
- -I, --nointeract Use plain lists, no interaction required.
- -M, --machine Machine-readable output for lists (implies -I).
-
- -q, --quiet Suppress warnings and most error messages.
- -v, --verbose Print additional information (eg, viewer command).
- -d, --debug[=list] Activate debug output (restricted to list).
-
-Environment: PAGER, BROWSER, PDFVIEWER, PSVIEWER, DVIVIEWER.
-Files: <texmf>/texdoc/texdoc.cnf, see output of the --files option.
-Report bugs to <texdoc@tug.org>.
-Full manual available via `texdoc texdoc'.]]
-
-copyright_msg = [[
-Copyright (C) 2008-2011 Manuel P'egouri'e-Gonnard.
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
-This is free software: you are free to change and redistribute it.]]
-
-actions_ph = 'Actions:\n'
-
-usage_settings_ph = 'Current settings:' -- keep ../doc/texdoc wrapper in sync!
-usage_settings = {
- { name = 'mode', view = '--view', mixed = '--mixed', list = '--list',
- showall = '--showall' },
- { name = 'interact_switch',
- [true] = '--interact', [false] = '--nointeract' },
-}
-
-known_options = {
- 'viewer_.*',
- 'mode',
- 'interact_switch',
- 'machine_switch',
- 'ext_list',
- 'basename_list',
- 'badext_list',
- 'badbasename_list',
- 'suffix_list',
- 'verbosity_level',
- 'debug_list',
- 'lastfile_switch',
- 'rm_dir',
- 'rm_file',
- 'unzip_.*',
- 'zipext_list',
- 'max_lines',
- 'lang',
-}
-
-error_msg = [[
-Try `texdoc --help' for a short help, `texdoc texdoc' for the user manual.]]
-notfound_msg = [[
-Sorry, no documentation found for PKGNAME.
-If you are unsure about the name, try searching CTAN's TeX catalogue at
-http://ctan.org/search.html#byDescription.]]
-notfound_msg_ph = 'PKGNAME'
-
-err_priority = {
- error = 1,
- warning = 2,
- info = 3,
-}
-min_verbosity='0'
-max_verbosity='3'
-def_verbosity='2'
-
-known_debugs = {
- version = {},
- files = {},
- config = {'files'},
- view = {},
- texdocs = {},
- score = {},
- tlpdb = {}
-}
-
--- various cache or non-cache files
-cache_name = 'texdoc/cache-tlpdb.lua' -- relative to TEXMFVAR
-data_tlpdb_name = 'texdoc/Data.tlpdb.lua'
-
-place_holder = '%%s' -- used for viewer commands
-
--- END constants
-
--- get our previous environment back
-setfenv(1, texdoc_env)
-
--- Make global C a read-only proxy to the local <constants>.
--- Note this is not deep read-only: C.known_debugs is read-only, but
--- C.known_debugs.version isn't, for instance.
-assert(next(C) == nil,
- 'Internal error: table of constants should be empty at this point')
-setmetatable(C, {
- __index = constants,
- __newindew = function ()
- error('Internal error: attempt to modify a constant.')
- end
-})