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#!/usr/bin/env texlua
-- This program is licensed under the terms of the MIT License.
--
-- Copyright (c) 2021-2023 Munehiro Yamamoto <munepixyz@gmail.com>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this software and associated documentation files (the "Software"), to deal
-- in the Software without restriction, including without limitation the rights
-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-- copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in
-- all copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-- THE SOFTWARE.
NAME = "runtexshebang"
VERSION = "20231117 v0.5"
USAGE = [[
Usage: runtexshebang [input.tex]
Options:
--dry-run print the TeX-style shebang line of [input.tex]
-h, --help print help
-v, --version print version
See also:
The command
texdoc runtexshebang
should give you access to the README.
]]
function whoami()
print(NAME .. " " .. VERSION)
end
function help()
whoami()
print()
print(USAGE)
end
if #arg == 0 then
help()
os.exit(0)
end
--
is_dryrun = false
texfilename = ""
narg = 1
repeat
this_arg = arg[narg]
-- replace double dash by single dash at the beginning
this_arg = string.gsub(this_arg, "^%-%-", "-")
if this_arg == "-h" or this_arg == "-help" then
help()
os.exit(0)
elseif this_arg == "-v" or this_arg == "-version" then
whoami()
os.exit(0)
elseif this_arg == "-dry-run" then
is_dryrun = true
else
texfilename = this_arg
end --if this_arg == ...
narg = narg+1
until narg > #arg
-- main process
whoami()
if ( texfilename == "" ) then
print("No filename argument given, exiting.\n")
os.exit(1)
end
line_ctr = 0
for line in io.lines(texfilename) do
line_ctr = line_ctr + 1
if line_ctr > 20 then break end
if string.match(line, "^%%#!") then
tex_cmd, err=string.gsub(line, "%%#!", "")
if is_dryrun then
print(tex_cmd .. "\n")
os.exit(0)
end
tex_return = os.execute(tex_cmd)
-- if os.execute(texcmd) returns -1 on Windows, then
-- cmd.exe is not included in PATH, or some invalid string found before cmd.exe
if os.type == 'windows' and tex_return == -1 then
print("Invalid PATH setting found. Please ensure that cmd.exe can be found.\n")
os.exit(1)
end
-- if not tex_return == 0 then
-- print("TeX-style shebang processing of the below failed.\n" .. tex_cmd .. "\n")
-- os.exit(1)
-- end
os.exit(0)
-- else
-- print("TeX-style shebang not matched.\n")
end
end
print("TeX-style shebang not found.\n")
os.exit(2)
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