pax_global_header00006660000000000000000000000064126075010070014510gustar00rootroot0000000000000052 comment=950b13afa6fcaa53c4f63d4415e883d0dbb05c21 yaggo-1.5.9/000077500000000000000000000000001260750100700126325ustar00rootroot00000000000000yaggo-1.5.9/.gitignore000066400000000000000000000000301260750100700146130ustar00rootroot00000000000000yaggo-*.tar.gz .tup pkg yaggo-1.5.9/COPYING000066400000000000000000001045131260750100700136710ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. 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But first, please read . yaggo-1.5.9/Makefile000066400000000000000000000004731260750100700142760ustar00rootroot00000000000000prefix ?= /usr/local all: bin/create_yaggo_one_file ruby bin/create_yaggo_one_file ./yaggo install: all mkdir -p $(prefix)/bin mkdir -p $(prefix)/share/doc/yaggo mkdir -p $(prefix)/share/man/man1 cp ./yaggo $(prefix)/bin cp ./README.md $(prefix)/share/doc/yaggo ./yaggo -m $(prefix)/share/man/man1/yaggo.1 yaggo-1.5.9/README000066400000000000000000000000161260750100700135070ustar00rootroot00000000000000See README.md yaggo-1.5.9/README.md000066400000000000000000000053151260750100700141150ustar00rootroot00000000000000# What is yaggo? Yaggo is a tool to generate command line parsers for C++. Yaggo stands for "Yet Another GenGetOpt" and is inspired by [GNU Gengetopt](https://www.gnu.org/software/gengetopt/gengetopt.html). It reads a configuration file describing the switches and argument for a C++ program and it generates one header file that parses the command line using getopt_long(3). See the Example section below for more details. # Installation ## Quick and easy Download the standalone script from the [release](https://github.com/gmarcais/yaggo/releases) and copy it into a directory in your PATH (e.g. `~/bin`) From the source tree, the same is achieved with: ```Shell make DEST=$HOME/bin ``` ## As a gem Download the gem from the [release](https://github.com/gmarcais/yaggo/releases) and install it with `sudo gem install ./yaggo-1.5.8.gem` (adjust the version!). Similarly, from the source tree, first generate the gem and then install it. For example here with version 1.5.3: ```Shell rake gem sudo gem install ./pkg/yaggo-1.5.3.gem ``` # Documentation After installation, documentation is available with `yaggo --man`. # Simple example Given the following configuration file 'parser.yaggo': ```Ruby purpose "Demonstrate yaggo capabilities" description "This simple configuration file shows some of the capabilities of yaggo. This is supposed to be a longer description of the program. " option("f", "flag") { description "This is a flag" off } option("i", "int") { description "This take an integer" int default 20 } arg("path") { description "Path to file" c_string } ``` The following C++ program ('parser.cc') does switch parsing, generate appropriate errors and has an automatically generated help (accessible with '-h' or '--help'). ```C #include #include "parser.hpp" int main(int argc, char* argv[]) { parser args(argc, argv); // Does all the parsing std::cout << "--flag " << (args.flag_flag ? "not passed" : "passed") << "\n" << "--int: " << args.int_arg << "\n" << "path: " << args.path_arg << "\n"; return 0; } ``` All of this is compiled with: ```Shell yaggo parser.yaggo g++ -o parser parser.cc ``` Then, './parser --help' returns: ``` Usage: parser [options] path:string Demonstrate yaggo capabilities This simple configuration file shows some of the capabilities of yaggo. This is supposed to be a longer description of the program. Options (default value in (), *required): -f, --flag This is a flag (false) -i, --int=int This take an integer (20) -U, --usage Usage -h, --help This message -V, --version Version ``` yaggo-1.5.9/Rakefile000066400000000000000000000026501260750100700143020ustar00rootroot00000000000000# -*- coding: utf-8 -*- require 'rubygems' require 'rubygems/package_task' load 'lib/yaggo/version.rb' load 'bin/create_yaggo_one_file' spec = Gem::Specification.new do |s| s.name = "yaggo" s.version = $yaggo_version s.platform = Gem::Platform::RUBY s.authors = ["Guillaume Marçais"] s.email = ["gmarcais@umd.edu"] s.homepage = "https://github.com/gmarcais/yaggo" s.summary = "Yet Another Generator for getopt" s.licenses = ['GPL-3.0'] s.description = "Yaggo defines a DSL to generate GNU compatible command line parsers for C++ using getopt." s.required_rubygems_version = ">= 1.3.6" # If you need to check in files that aren't .rb files, add them here s.files = Dir["{lib}/**/*.rb", "bin/*", "LICENSE", "*.md"] s.require_path = 'lib' # If you need an executable, add it here s.executables = ["yaggo"] end Gem::PackageTask.new(spec) do |pkg| pkg.need_zip = false pkg.need_tar = true end desc "Run yaggo" task :yaggo do |t| ARGV.shift if ARGV[0] == "yaggo" ruby("-Ilib", "./bin/yaggo", *ARGV) end task :default => :yaggo desc "Create a distribution tarball" task :dist do |t| system("tar", "-zc", "-f", "yaggo-#{spec.version}.tar.gz", "--transform", "s|^|yaggo-#{spec.version}/|", "README", "COPYING", "setup.rb", "bin", "lib") end desc "Create a single file executable" task :exec do |t| create_binary("lib/yaggo/main.rb", "yaggo") end yaggo-1.5.9/bin/000077500000000000000000000000001260750100700134025ustar00rootroot00000000000000yaggo-1.5.9/bin/create_yaggo_one_file000066400000000000000000000015211260750100700176150ustar00rootroot00000000000000#! /usr/bin/env ruby def create_binary src, dest to_load = [] loaded = {} open(dest, "w", 0755) do |wfd| wfd.puts(<<'EOS') #! /usr/bin/env ruby if !$load_self $load_self = true load(__FILE__) main exit(0) end EOS open(src, "r") do |rfd| rfd.each_line { |l| if l =~ /^\s*require\s+['"]yaggo\/(\w+)['"]\s*$/ to_load << $1 else wfd.print(l) end } end to_load.each { |f| next if loaded[f] wfd.puts("", "# Loading yaggo/#{f}", "") open(File.join("lib", "yaggo", f + ".rb"), "r") { |nfd| nfd.each_line { |l| wfd.print(l) unless l =~ /^\s*require\s+['"]yaggo\/(\w+)['"]\s*$/ } } loaded[f] = true } end end if __FILE__ == $0 dest = ARGV.shift || "yaggo" create_binary("lib/yaggo/main.rb", dest) end yaggo-1.5.9/bin/yaggo000077500000000000000000000015201260750100700144340ustar00rootroot00000000000000#! /usr/bin/env ruby # Yaggo. Yet Another GenGetOpt. Generate command line switch parsers # using getopt_long. # Copyright (C) 2011 Guillaume Marcais. # # This program is free software: you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see # . require 'yaggo/main.rb' main yaggo-1.5.9/lib/000077500000000000000000000000001260750100700134005ustar00rootroot00000000000000yaggo-1.5.9/lib/yaggo/000077500000000000000000000000001260750100700145065ustar00rootroot00000000000000yaggo-1.5.9/lib/yaggo/dsl.rb000066400000000000000000000366131260750100700156260ustar00rootroot00000000000000# This file is part of Yaggo. # Yaggo is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # Yaggo is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with Yaggo. If not, see . ############################## # Process an input files. Define the Domain Specific Language. ############################## $options = [] $opt_hash = {} $args = [] class NoTarget def description str; $description = str; end def description= str; $description = str; end def method_missing(m, *args) raise "'#{m}' used outside of option or arg description" end end $target = NoTarget.new def output str; $output = str; end def name str; $klass = str; end def purpose str; $purpose = str; end def package str; $package = str; end def usage str; $usage = str; end def text str; $after_text = str; end def description str; $target.description = str; end def version str; $version = str; end def posix *args; $posix = true; end def license str; $license = str; end $global_variables = [:output, :name, :purpose, :package, :description, :version, :license, :posix] output = name = purpose = package = description = version = license = nil # def set_type t # raise "More than 1 type specified: '#{$target.type}' and '#{t}'" unless $target.type.nil? # $target.type = t # end def int32; $target.type = :int32; end def int64; $target.type = :int64; end def uint32; $target.type = :uint32; end def uint64; $target.type = :uint64; end def int; $target.type = :int; end def long; $target.type = :long; end def double; $target.type = :double; end def string; $target.type = :string; end def c_string; $target.type = :c_string; end def flag; $target.type = :flag; end def enum(*argv); $target.type = :enum; $target.enum = argv; end def suffix; $target.suffix = true; end def required; $target.required = true; end def hidden; $target.hidden = true; end def secret; $target.secret = true; end def on; $target.on; end def off; $target.off; end def no; $target.no; end def default str; $target.default = str; end def typestr str; $target.typestr = str; end def multiple; $target.multiple = true; end def at_least n; $target.at_least = n; end def conflict *a; $target.conflict= a; end def imply *a; $target.imply= a; end def access *types; $target.access= types; end # Define the following local variables and check their value after # yielding the block to catch syntax such as default="value". $option_variables = [:default, :typestr, :at_least] default = typestr = at_least = nil $main_binding = binding def default_val(val, type, *argv) case type when :string, :c_string "\"#{val || $type_default[type]}\"" when :uint32, :uint64, :int32, :int64, :int, :long, :double val ? "(#{$type_to_C_type[type]})#{val}" : $type_default[type] else val.to_s || $type_default[type] end end class BaseOptArg def at_least=(n) multiple = true nb = case n when Integer n when String n =~ /^\d+$/ ? n.to_i : nil else nil end raise "Invalid minimum number for at_least (#{n})" if nb.nil? self.multiple = true @at_least = nb end def type=(t) raise "More than 1 type specified: '#{type}' and '#{t}'" unless @type.nil? || @type == t @type = t end def suffix=(t) case type when nil raise "A numerical type must be specify before suffix" when :flag, :string, :c_string raise "Suffix is meaningless with the type #{type}" end @suffix = t end def access=(types) types.all? { |t| ["read", "write", "exec"].include?(t) } or raise "Invalid access type(s): #{types.join(", ")}" @access_types = types end def check if !@access_types.empty? && @type != :c_string raise "Access checking is valid only with a path (a c_string)" end end end class Option < BaseOptArg attr_accessor :description, :required, :typestr attr_accessor :hidden, :secret, :conflict, :multiple, :access_types, :noflag attr_reader :long, :short, :var, :type, :at_least, :default, :suffix, :enum attr_reader :imply def initialize(long, short) @long, @short = long, short @var = (@long || @short).gsub(/[^a-zA-Z0-9_]/, "_") @type = nil @no = false # Also generate the --noswitch for a flag @default = nil @suffix = false @at_least = nil @conflict = [] @enum = [] @imply = [] @access_types = [] end def on self.type = :flag self.default = "true" end def off self.type = :flag self.default = "false" end def no self.type = :flag self.noflag = true end def tf_to_on_off v case v when "true" "on" when "false" "off" else v end end def convert_int(x, signed = true) x =~ /^([+-]?\d+)([kMGTPE]?)$/ or return nil v = $1.to_i return nil if v < 0 && !signed case $2 when "k" v *= 1000 when "M" v *= 1000_000 when "G" v *= 1000_000_000 when "T" v *= 1000_000_000_000 when "P" v *= 1000_000_000_000_000 when "E" v *= 1000_000_000_000_000_000 end return v end def convert_double(x) x =~ /^([+-]?[\d]+(?:\.\d*))?(?:([afpnumkMGTPE])|([eE][+-]?\d+))?$/ or return nil v = "#{$1}#{$3}".to_f case $2 when "a" v *= 1e-18 when "f" v *= 1e-15 when "p" v *= 1e-12 when "n" v *= 1e-9 when "u" v *= 1e-6 when "m" v *= 1e-3 when "k" v *= 1e3 when "M" v *= 1e6 when "G" v *= 1e9 when "T" v *= 1e12 when "P" v *= 1e15 when "E" v *= 1e18 end return v end def default=(v) type.nil? and raise "A type must be specified before defining a default value" unless default.nil? if type == :flag v1, v2 = tf_to_on_off(default), tf_to_on_off(v) else v1, v2 = default, v end raise "More than 1 default value specified: '#{v1}' and '#{v2}'" end pref = "Option #{long || ""}|#{short || ""}:" bv = v # Backup v for display case @type when nil raise "#{pref} No type specified" when :uint32, :uint64 (Integer === v && v >= 0) || (String === v && v = convert_int(v, false)) or raise "#{pref} Invalid unsigned integer '#{bv}'" when :int32, :int64, :int, :long (Integer === v) || (String === v && v = convert_int(v, true)) or raise "#{pref} Invalid integer #{bv}" when :double (Float === v) || (String === v && v = convert_double(v)) or raise "#{pref} Invalid double #{bv}" when :enum v = v.to_i if v =~ /^\d+$/ case v when Integer (v >= 0 && v < @enum.size) or raise "Default is out of range [0, #{@enum.size-1}]" when String nv = @enum.index(v) or raise "Unknown constant '#{v}'. Should be one of { #{@enum.join(", ")} }" v = nv else raise "Expected an Integer or a String" end end @default = v end def enum=(*argv) @type == :enum or raise "#{pref} Enum valid only for enum types." @enum = argv.flatten end def conflict= a; @conflict += a.map { |x| x.gsub(/^-+/, "") }; end def imply= a; @imply += a.map { |x| x.gsub(/^-+/, "") }; end def check pref = "Option #{long || ""}|#{short || ""}:" raise "#{pref} No type specified" if type.nil? if multiple raise "#{pref} Multiple is meaningless with a flag" if type == :flag raise "#{pref} An option marked multiple cannot have a default value" unless default.nil? raise "#{pref} Multiple is incompatible with enum type" if type == :enum end if @type == :flag && noflag && !short.nil? raise "#{pref} flag with 'no' option cannot have a short switch" end super # case @type # when nil # raise "#{pref} No type specified" # when :uint32, :uint64 # @default.nil? || @default =~ /^\d+$/ or # raise "#{pref} Invalid unsigned integer #{@default}" # when :int32, :int64, :int, :long # @default.nil? || @default =~ /^[+-]?\d+$/ or # raise "#{pref} Invalid integer #{@default}" # when :double # @default.nil? || @default =~ /^[+-]?[\d.]+([eE][+-]?\d+)?$/ or # raise "#{pref} Invalid double #{@default}" # when :flag # raise "#{pref} A flag cannot be declared multiple" if @multiple # raise "#{pref} Suffix is meaningless for a flag" if @suffix # end end def static_decl a = [] if @type == :enum a << "struct #{@var} {" a << " enum { #{@enum.map { |x| x.gsub(/[^a-zA-Z0-9_]/, "_") }.join(", ")} };" a << " static const char* const strs[#{@enum.size + 1}];" a << "};" end a end def var_decl if @type == :flag ["#{"bool".ljust($typejust)} #{@var}_flag;"] else a = [] if @multiple c_type = "::std::vector<#{$type_to_C_type[@type]}>" a << (c_type.ljust($typejust) + " #{@var}_arg;") a << ("typedef #{c_type}::iterator #{@var}_arg_it;") a << ("typedef #{c_type}::const_iterator #{@var}_arg_const_it;") else a << "#{$type_to_C_type[@type].ljust($typejust)} #{@var}_arg;" end a << "#{"bool".ljust($typejust)} #{@var}_given;" end end def init s = "#{@var}_#{@type == :flag ? "flag" : "arg"}(" s += default_val(@default, @type, @enum) unless @multiple s += ")" unless @type == :flag s += ", #{@var}_given(false)" end s end def long_enum return nil if !@short.nil? res = [@var.upcase + "_OPT"] if @type == :flag && noflag res << "NO#{@var.upcase}_OPT" end res end def struct res = ["{\"#{long}\", #{@type == :flag ? 0 : 1}, 0, #{@short ? "'" + @short + "'" : long_enum[0]}}"] if @type == :flag && noflag res << "{\"no#{long}\", 0, 0, #{long_enum()[1]}}" end res end def short_str return nil if @short.nil? @short + (@type == :flag ? "" : ":") end def switches s = @short.nil? ? " " : "-#{@short}" s += ", " unless @short.nil? || @long.nil? unless @long.nil? if @type == :flag && @noflag s += "--[no]#{@long}" else s += "--#{@long}" end s += "=#{@typestr || dflt_typestr(@type, @enum)}" unless @type == :flag end s end def default_str return @default unless @type == :enum @enum[@default || 0] end def help s = @required ? "*" : " " @description ||= "Switch #{switches}" s += @description.gsub(/"/, '\"') || "" default = default_str s += " (#{default})" unless default.nil? s end def dump case @type when :flag ["\"#{@var}_flag:\"", "#{@var}_flag"] when :enum ["\"#{@var}_given:\"", "#{@var}_given", "\" #{@var}_arg:\"", "#{@var}_arg", '"|"', "#{@var}::strs[#{@var}_arg]"] else ["\"#{@var}_given:\"", "#{@var}_given", "\" #{@var}_arg:\"", @multiple ? "vec_str(#{@var}_arg)" : "#{@var}_arg"] end end def parse_arg(no = false) a = @imply.map { |ios| "#{$opt_hash[ios].var}_flag = true;" } a << "#{@var}_given = true;" unless @type == :flag case @type when :flag if @noflag a << ["#{@var}_flag = #{no ? "false" : "true"};"] else a << ["#{@var}_flag = #{@default == "true" ? "false" : "true"};"] end when :string a << (@multiple ? "#{@var}_arg.push_back(#{str_conv("optarg", @type, false)});" : "#{@var}_arg.assign(optarg);") when :c_string a << (@multiple ? "#{@var}_arg.push_back(#{str_conv("optarg", @type, false)});" : "#{@var}_arg = optarg;") when :uint32, :uint64, :int32, :int64, :int, :long, :double a << (@multiple ? "#{@var}_arg.push_back(#{str_conv("optarg", @type, @suffix)});" : "#{@var}_arg = #{str_conv("optarg", @type, @suffix)};") a << "CHECK_ERR(#{@type}_t, optarg, \"#{switches}\")" when :enum a << "#{@var}_arg = #{str_conv("optarg", @type, "#{@var}::strs")};" a << "CHECK_ERR(#{@type}, optarg, \"#{switches}\")" end a end end class Arg < BaseOptArg attr_accessor :description, :type, :typestr, :multiple, :access_types attr_reader :name, :at_least, :suffix, :var def initialize(str) @name = str @var = @name.gsub(/[^a-zA-Z0-9_]/, "_") @type = nil @at_least = 0 @suffix = false @access_types = [] end def type=(t) super raise "An arg cannot be of type '#{t}'" if t == :flag end def on; raise "An arg cannot be a flag with default value on"; end def off; raise "An arg cannot be a flag with default value off"; end def default=(*args) raise "An arg cannot have a default value (#{args[0]})" end def hidden=(*args) raise "An arg cannot be marked hidden" end def secret=(*args) raise "An arg cannot be marked secret" end def required=(*args) raise "An arg cannot be marked required" end def check super pref = "Arg #{name}:" raise "#{pref} No type specified" if type.nil? end def var_decl if @multiple c_type = "::std::vector<#{$type_to_C_type[@type]}>" [c_type.ljust($typejust) + " #{@var}_arg;", "typedef #{c_type}::iterator #{@var}_arg_it;", "typedef #{c_type}::const_iterator #{@var}_arg_const_it;"] else ["#{$type_to_C_type[@type]}".ljust($typejust) + " #{@var}_arg;"] end end def init s = "#{@var}_arg(" s += default_val(@default, @type) unless @multiple s += ")" s end def dump ["\"#{@var}_arg:\"", @multiple ? "vec_str(#{@var}_arg)" : "#{@var}_arg"] end def parse_arg a = [] off = "" if @multiple a << "for( ; optind < argc; ++optind) {" a << " #{@var}_arg.push_back(#{str_conv("argv[optind]", @type, @suffix)});" off = " " else a << "#{@var}_arg = #{str_conv("argv[optind]", @type, @suffix)};" end unless @type == :string || @type == :c_string a << (off + "CHECK_ERR(#{@type}_t, argv[optind], \"#{@var}\")") end a << (@multiple ? "}" : "++optind;") a end end def option(name1, name2 = nil, &b) long = short = nil if name1 =~ /^--/ || name1.length >= 2 long, short = name1, name2 elsif !name2.nil? && (name2 =~ /^--/ || name2.length >= 2) long, short = name2, name1 else long, short = nil, name1 end long.gsub!(/^--/, "") unless long.nil? short.gsub!(/^-/, "") unless short.nil? o = Option.new(long, short) $options.each { |lo| if (!long.nil? && lo.long == long) || (!short.nil? && lo.short == short) raise "#{b.source_location.join(":")}: Option #{long}|#{short} conflicts with existing option #{lo.long}|#{lo.short}" end } $options << o $target = o name = "Option #{long || ""}|#{short || ""}" run_block(name, b) $target = NoTarget.new begin o.check rescue => e raise "#{b.source_location.join(":")}: #{e.message}" end end def arg(name, &b) a = Arg.new(name) $args.any? { |la| la.name == name } and raise "#{b.source_location.join(":")}: Arg '#{name}' already exists" $args << a $target = a name = "Arg #{name}" run_block(name, b) $target = NoTarget.new begin a.check rescue => e raise "#{b.source_location.join(":")}: #{e.message}" end end yaggo-1.5.9/lib/yaggo/general.rb000066400000000000000000000063401260750100700164530ustar00rootroot00000000000000# This file is part of Yaggo. # Yaggo is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # Yaggo is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with Yaggo. If not, see . $typejust = 30 $switchesjust = 40 $type_to_C_type = { :uint32 => "uint32_t", :uint64 => "uint64_t", :int32 => "int32_t", :int64 => "int64_t", :int => "int", :long => "long", :double => "double", :string => "string", :c_string => "const char *", :enum => "int", } $type_default = { :uint32 => "0", :uint64 => "0", :int32 => "0", :int64 => "0", :int => "0", :long => "0", :double => "0.0", :string => "", :c_string => "", :enum => "0", } def dflt_typestr(type, *argv) case type when :c_string "string" when :enum argv[0].join("|") else type.to_s end end def suffix_arg(suffix) case suffix when true "true" when false "false" when String suffix else raise "Invalid suffix specifier" end end def str_conv(arg, type, *argv) case type when :string "string(#{arg})" when :c_string arg when :uint32, :uint64 "conv_uint<#{$type_to_C_type[type]}>((const char*)#{arg}, err, #{suffix_arg(argv[0])})" when :int32, :int64, :long, :int "conv_int<#{$type_to_C_type[type]}>((const char*)#{arg}, err, #{suffix_arg(argv[0])})" when :double "conv_double((const char*)#{arg}, err, #{suffix_arg(argv[0])})" when :enum # Convert a string to its equivalent enum value "conv_enum((const char*)#{arg}, err, #{argv[0]})" end end def find_error_header bt bt.each { |l| l =~ /^\(eval\):\d+:/ and return $& } return "" end def run_block(name, b) eval("#{$option_variables.join(" = ")} = nil", $main_binding) b.call $option_variables.each { |n| eval("#{n} #{n} unless #{n}.nil?", $main_binding) } rescue NoMethodError => e header = find_error_header(e.backtrace) raise "#{header} In #{name}: invalid keyword '#{e.name}' in statement '#{e.name} #{e.args.map { |s| "\"#{s}\"" }.join(" ")}'" rescue NameError => e header = find_error_header(e.backtrace) raise "#{header} In #{name}: invalid keyword '#{e.name}'" rescue RuntimeError, ArgumentError => e header = find_error_header(e.backtrace) raise "#{header} In #{name}: #{e.message}" end def check_conflict_exclude $options.each { |o| $opt_hash[o.long] = o unless o.long.nil? $opt_hash[o.short] = o unless o.short.nil? } $options.each { |o| o.conflict.each { |co| $opt_hash[co] or raise "Unknown conflict option '#{co}' for switch #{o.long}|#{o.short}" } } $options.each { |o| o.imply.each { |ios| io = $opt_hash[ios] or raise "Unknown implied option '#{io}' for switch #{o.long}|#{o.short}" io.type == :flag or raise "Implied option '#{io}' for switch #{o.long}|#{o.short} is not a flag" } } end yaggo-1.5.9/lib/yaggo/library.rb000066400000000000000000000126001260750100700164760ustar00rootroot00000000000000# This file is part of Yaggo. # Yaggo is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # Yaggo is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with Yaggo. If not, see . def output_conversion_code file file.puts(< static bool adjust_int_si_suffix(T &res, const char *suffix) { if(*suffix == '\\0') return true; if(*(suffix + 1) != '\\0') return false; switch(*suffix) { case 'k': res *= (T)1000; break; case 'M': res *= (T)1000000; break; case 'G': res *= (T)1000000000; break; case 'T': res *= (T)1000000000000; break; case 'P': res *= (T)1000000000000000; break; case 'E': res *= (T)1000000000000000000; break; default: return false; } return true; } template static T conv_int(const char *str, ::std::string &err, bool si_suffix) { char *endptr = 0; errno = 0; long long int res = strtoll(str, &endptr, 0); if(errno) { err.assign(strerror(errno)); return (T)0; } bool invalid = si_suffix ? !adjust_int_si_suffix(res, endptr) : *endptr != '\\0'; if(invalid) { err.assign("Invalid character"); return (T)0; } if(res > ::std::numeric_limits::max() || res < ::std::numeric_limits::min()) { err.assign("Value out of range"); return (T)0; } return (T)res; } template static T conv_uint(const char *str, ::std::string &err, bool si_suffix) { char *endptr = 0; errno = 0; while(isspace(*str)) { ++str; } if(*str == '-') { err.assign("Negative value"); return (T)0; } unsigned long long int res = strtoull(str, &endptr, 0); if(errno) { err.assign(strerror(errno)); return (T)0; } bool invalid = si_suffix ? !adjust_int_si_suffix(res, endptr) : *endptr != '\\0'; if(invalid) { err.assign("Invalid character"); return (T)0; } if(res > ::std::numeric_limits::max()) { err.assign("Value out of range"); return (T)0; } return (T)res; } template static ::std::string vec_str(const std::vector &vec) { ::std::ostringstream os; for(typename ::std::vector::const_iterator it = vec.begin(); it != vec.end(); ++it) { if(it != vec.begin()) os << ","; os << *it; } return os.str(); } class string : public ::std::string { public: string() : ::std::string() {} explicit string(const ::std::string &s) : std::string(s) {} explicit string(const char *s) : ::std::string(s) {} int as_enum(const char* const strs[]) { ::std::string err; int res = #{str_conv("this->c_str()", :enum, "strs")}; if(!err.empty()) throw ::std::runtime_error(err); return res; } EOS [:uint32, :uint64, :int32, :int64, :int, :long, :double].each do |type| file.puts(<c_str()", type, "si_suffix")}; if(!err.empty()) { ::std::string msg("Invalid conversion of '"); msg += *this; msg += "' to #{type}_t: "; msg += err; throw ::std::runtime_error(msg); } return res; } EOS end file.puts(<. require 'optparse' require 'yaggo/version' require 'yaggo/man_page' require 'yaggo/stub' require 'yaggo/general' require 'yaggo/library' require 'yaggo/dsl' require 'yaggo/parser' require 'yaggo/zsh_completion' def main $yaggo_options = { :output => nil, :license => nil, :stub => false, :zc => nil, :extended => false, :debug => false, } parser = OptionParser.new do |o| o.version = $yaggo_version o.banner = "Usage: #{$0} [options] [file.yaggo]" o.separator "" o.separator "Specific options:" o.on("-o", "--output FILE", "Output file") { |v| $yaggo_options[:output] = v } o.on("-l", "--license PATH", "License file to copy in header") { |v| $yaggo_options[:license] = v } o.on("-m", "--man [FILE]", "Display or write manpage") { |v| display_man_page v exit 0; } o.on("-s", "--stub", "Output a stub yaggo file") { $yaggo_options[:stub] = true } o.on("--zc PATH", "Write zsh completion file") { |v| $yaggo_options[:zc] = v } o.on("-e", "--extended-syntax", "Use extended syntax") { $yaggo_options[:extended] = true } o.on("--debug", "Debug yaggo") { $yaggo_options[:debug] = true } o.on_tail("-h", "--help", "Show this message") { puts o exit 0 } end parser.parse! ARGV if $yaggo_options[:stub] begin display_stub_yaggo_file $yaggo_options[:output] rescue => e STDERR.puts("Failed to write stub: #{e.message}") exit 1 end exit end if !$yaggo_options[:stub] && !$yaggo_options[:manual] && ARGV.empty? STDERR.puts "Error: some yaggo files and/or --lib switch is required", parser exit 1 end if !$yaggo_options[:output].nil? if $yaggo_options[:stub] if ARGV.size > 0 STDERR.puts "Error: no input file needed with the --stub switch", parser exit 1 end elsif ARGV.size != 1 STDERR.puts "Error: output switch meaningfull only with 1 input file", parser exit 1 end end ARGV.each do |input_file| pid = fork do begin yaggo_script = File.read(input_file) if $yaggo_options[:extended] yaggo_script.gsub!(/\)\s*\n\s*\{/, ") {") end eval(File.read(input_file)) parsed = true check_conflict_exclude rescue RuntimeError, SyntaxError, Errno::ENOENT, Errno::EACCES => e raise e if $yaggo_options[:debug] STDERR.puts(e.message.gsub(/^\(eval\)/, input_file)) exit 1 rescue NoMethodError => e raise e if $yaggo_options[:debug] STDERR.puts("Invalid keyword '#{e.name}'") exit 1 end fsplit = File.basename(input_file).split(/\./) $klass ||= fsplit.size > 1 ? fsplit[0..-2].join(".") : fsplit[0] $output = $yaggo_options[:output] if $yaggo_options[:output] $output ||= input_file.gsub(/\.yaggo$/, "") + ".hpp" begin out_fd = open($output, "w") output_cpp_parser(out_fd, $klass) rescue RuntimeError => e raise e if $yaggo_options[:debug] STDERR.puts("#{input_file}: #{e.message}") exit 1 ensure out_fd.close if out_fd end if $yaggo_options[:zc] begin out_fd = open($yaggo_options[:zc], "w") output_zsh_completion(out_fd, $yaggo_options[:zc]) rescue RuntimeError => e raise e if $yaggo_options[:debug] STDERR.puts("#{input_file}: #{e.message}") exit 1 ensure out_fd.close if out_fd end end end Process.waitpid pid exit 1 if !$?.exited? || ($?.exited? && $?.exitstatus != 0) end end yaggo-1.5.9/lib/yaggo/man_page.rb000066400000000000000000000322511260750100700166050ustar00rootroot00000000000000# This file is part of Yaggo. # Yaggo is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # Yaggo is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with Yaggo. If not, see . require 'pathname' def display_man_page out manual = < #include "example_args.hpp" int main(int argc, char *argv[]) { example_args args(argc, argv); std::cout << "Integer switch: " << args.int_arg << "\\\\n"; if(args.string_given) std::cout << "Number of string(s): " << args.string_arg.size() << "\\\\n"; else std::cout << "No string switch\\\\n"; std::cout << "Flag is " << (args.flag_flag ? "on" : "off") << "\\\\n"; std::cout << "First arg: " << args.first_arg << "\\\\n"; std::cout << "Severity arg: " << args.severity_arg << " " << example_args::severity::strs[args.severity_arg] << "\\\\n"; if(args.severity_arg == example_args::severity::high) std::cout << "Warning: severity is high\\\\n"; std::cout << "Rest:"; for(example_args::rest_arg_it it = args.rest_arg.begin(); it != args.rest_arg.end(); ++it) std::cout << " " << *it; std::cout << std::endl; return 0; } .fi This can be compiled with the following commands: .nf % yaggo example_args.yaggo % g++ -o example example.cpp .fi The yaggo command above will create by default the file 'example_args.hpp' (changed '.yaggo' extension to '.hpp'). The output file name can be changed with the 'output' keyword explained below. .SH DESCRIPTION FORMAT A description file is a sequence of statements. A statement is a keyword followed by some arguments. Strings must be surrounded by quotes ("" or '') and can span multiple lines. The order of the statements is irrelevant. Statements are separated by new lines or semi-colons ';'. .IP * Technically speaking, yaggo is implemented as a DSL (Domain Specific Language) using ruby. The description file is a valid ruby script and the keywords are ruby functions. .PP The following statements are global, not attached to a particular option or argument. .TP purpose A one line description of the program. .TP package The name of the package for the usage string. Defaults to the name of the class. .TP usage The usage string. If none given a standard one is generated by yaggo. .TP description A longer description of the program displayed before the list of switch. Displayed by the help. .TP text Some text to be displayed after the list of switches. Displayed by the help. .TP version The version string of the software. .TP license The license and copyright string of the software. .TP name The name of the class generated. Defaults to the name of the description file minus the .yaggo extension. .TP posix Posix correct behavior (instead of GNU behavior): switch processing stops at the first non-option argument .TP output The name of the output file. Defaults to the name of the description file with the .yaggo extension changed to .hpp. .PP The 'option' statement takes one or two arguments, which must be in parentheses, and a block of statements surrounded by curly braces ({...}). The arguments are the long and short version of the option. Either one of the long or short version can be omitted. The block of statements describe the option in more details, as described below. A switch is named after the long version, or the short version if no long version. An 'option' statement for an option named 'switch' defines one or two public members in the class. For a flag, it creates 'switch_flag' as a boolean. Otherwise, it creates 'switch_arg', with a type as specified, and 'switch_given', a boolean indicating whether or not the switch was given on the command line. For example, the statement: .nf option("integer", "i") { int; default 5 } .fi will add the following members to the C++ class: .nf int integer_arg; bool integer_given; .fi where "integer_arg" is initialized to 5 and "integer_given" is initialized to "false". If the switch "--integer 10" or "-i 10" is passed on the command line "integer_arg" is set to 10 and integer_given is set to "true". The statement: .nf option("verbose") { off } .fi will add the following member to the C++ class: .nf bool verbose_flag; .fi where "verbose_flag" is initialized to "false". Passing the switch "--verbose" on the command line sets "verbose_flag" to true". In addition to the switch created by 'option', the following switches are defined by default (unless some option statement overrides them): .TP \-h, \-\-help Display the help message. .TP \-\-full\-help Display hidden options as well. .TP \-\-version Display version string. .PP The following statement are recognized in an option block: .TP description "str" A short description for this switch. .TP int32, int64, uint32, uint64, double, int, long This switch is parsed as a number with the corresponding type int32_t, int64_t, uint32_t, uint64_t, double, int and long. .TP suffix Valid for numerical type switches as above. It can be appended with a SI suffix (e.g. 1M mean 1000000). The suffixes k, M, G, T, P, and E are supported for all the numerical types. The suffixes m, u, n, p, f, and a are supported for the double type. .TP c_string, string This switch is taken as a C string (const char *) or a C++ string (inherits from std::string). The C++ string type has the extra methods ' as_(bool suffix)', where is any numerical type as above, to convert the string into that type. If the 'suffix' boolean is true, parsing is done using SI suffixes. .TP enum This statement must be followed by a comma separated list of strings (as in 'enum "choice0", "choice1", "choice2"'). This switch takes value a string in the list and is converted to int. C enum type named "switchname::enum" is defined with the same choices in the given order. .TP required This switch is required. An error is generated if not given on the command line. .TP conflict Specify a comma separated list of switches that conflicts with this one. .TP imply Specify a comma separated list of switches (of type flag) which are implied by this one. .TP hidden This switch is not shown with --help. Use --full-help to see the hidden switches, if any. .TP secret This switch is not shown in any help message. Neither --help nor --full-help. .TP multiple This switch can be passed multiple times. The values are stored in a std::vector. A type for the iterator is also defined in the class with the name 'switch_arg_it', where 'switch' is the name of the option. .TP flag This switch is a flag and does not take an argument. .TP on, off The default state for a flag switch. Implies flag. Unless the 'no' option is used (see below), with 'off', the default value of the flag is "false" and passing --flag sets it to true. With 'on', the default value of the flag is "true" and passing --flag sets it to false. .TP no A flag with two switches. If the switch is named "flag", two switches are generated: --flag and --noflag, respectively setting it to "true" and "false". The 'on' and 'off' options define the default value. .TP default "val" The default value for this switch. It can be a string or a valid number. SI suffixes are supported as well (for example "1M" means 1 m`illion). .TP typestr "str" In the help message, by default, the type of the option is displayed. It can be replaced by the string given to 'typestr'. .TP at_least n The given switch must be given at least n times. Implies multiple. .TP access "type" Make sure that the string passed is a path to which we have access. "type" is a comma separated list of "read", "write" or "exec". It is checked with access(2). The same warning applies: "Warning: Using access() to check if a user is authorized to, for example, open a file before actually doing so using open(2) creates a security hole, because the user might exploit the short time interval between checking and opening the file to manipulate it. For this reason, the use of this system call should be avoided. (In the example just described, a safer alternative would be to temporarily switch the process's effective user ID to the real ID and then call open(2).)" .PP A 'arg' statement defines an arg passed to the command line. The statement takes a single argument, the name of the arg, and a block of statements. The block of statements are similar to the option block, except that "hidden", "flag", "on", "off" and "no" are not allowed. At most one arg can have the 'multiple' statement, and it must be the last one. .SH EXAMPLE USAGE The argument object parses the switches on construction or later on using the parse method. For example, the two pieces code show these two different usage. Using parse method: .nf example_args args; // Global variable with switches int main(int argc, char* argv[]) { args.parse(argc, argv); } .fi Parse on construction: .nf int main(int argc, char* argv[]) { example_args args(argc, argv); } .fi The subclass error can be used to output error messsage (and terminate program). It output an error message, the usage string, etc. The error class behave like an output stream, it can be used to create complicated error message. For example: .nf if(false_condition) example_args::error() << "Failed to open file '" << args.file_arg << "'"; .fi An error object prints an error message and terminate the program with exit upon destruction. An exit code can be passed to error. By default the exit code (passed to exit) is the constant EXIT_FAILURE (normally 1). For example: .nf example_args::error(77) << "Failed with return code 77"; .fi .SH LICENSE There are 2 parts to the software: the yaggo ruby script itself, and the header files generated by yaggo from the description files. The licenses are as follow: .TP yaggo the ruby script This software is licensed under the GNU General Public License version 3 or any later version. Copyright (c) 2011 Guillaume Marcais. .TP The generated header files. These files have the license and copyright that you, the user of yaggo, assign with the 'license' keyword. .PP In short: only yaggo the software is GPL. The generated header files are considered derivative of your work (e.g. the description), and you define the copyright and license of those as you see fit. .SH BUGS .IP * The error message returned by ruby can be a little confusing. .SH AUTHOR Guillaume Marcais (gmarcais@umd.edu) .SH SEE ALSO getopt_long(3), gengetopt(1), exit(2) EOS if !out && STDOUT.isatty require 'tempfile' Tempfile.open("yaggo_man") do |fd| begin fd.write(manual) fd.flush system("man", fd.path) ensure fd.unlink end end elsif !out STDOUT.puts(manual) else path = Pathname.new(out) path.write manual end end yaggo-1.5.9/lib/yaggo/parser.rb000066400000000000000000000311741260750100700163350ustar00rootroot00000000000000# This file is part of Yaggo. # Yaggo is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # Yaggo is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with Yaggo. If not, see . def quote_newline_dquotes str, spaces = "" str.gsub(/"/, '\\"').split(/\n/).join("\\n\" \\\n#{spaces}\"") end def output_options_descriptions out, opts, hidden opts.each { |o| # need to be improved. break lines if too long next if o.secret || (o.hidden ^ hidden) s = " " + o.switches if s.size >= $switchesjust s += "\\n" + "".ljust($switchesjust) else s = s.ljust($switchesjust) end out.puts(" \"#{s} #{o.help}\\n\"") } end def output_cpp_parser(h, class_name) $options.each { |o| o.check } $args.each { |a| a.check } if $args.size > 1 mul_args = $args[0..-2].select { |a| a.multiple } if mul_args.size > 0 gram = mul_args.size > 1 ? "s are" : " is" raise "The following#{gram} not the last arg but marked multiple: #{mul_args.map { |a| a.name }.join(", ")}" end end # Headers h.puts(< #include #include #include #include #include #include #include #include #include #include #include #include class #{class_name} { // Boiler plate stuff. Conversion from string to other formats EOS output_conversion_code h h.puts(< 1 ? "s" : ""}."); EOS else min_args = $args.size - 1 + $args[-1].at_least h.puts(< 1 ? "s" : ""}."); EOS end $args.each { |a| h.puts(" " + a.parse_arg.join("\n ")) } # Check access rights if ($options + $args).any? { |o| !o.access_types.empty? } r_to_f = { "read" => "R_OK", "write" => "W_OK", "exec" => "X_OK" } h.puts("", " // Check access rights") ($args + $options).each { |o| next if o.access_types.empty? mode = o.access_types.map { |t| r_to_f[t] }.join("|") msg = Arg === o ? "Argument " + o.name : "Switch " + o.switches msg += ", access right (#{o.access_types.join("|")}) failed for file '" h.puts(" if(access(#{o.var}_arg, #{mode})) {", " err = \"#{msg}\";", " ((err += #{o.var}_arg) += \"': \") += strerror(errno);", " error(err.c_str());", " }") } end h.puts(" }") # close parser # Usage if !$usage.nil? ausage = quote_newline_dquotes($usage, " ") else ausage = "Usage: #{$package || class_name} [options]" $args.each { |a| ausage += " #{a.name}:#{a.typestr || dflt_typestr(a.type)}#{a.multiple ? "+" : ""}" } end h.puts(< error& operator<<(const T& x) { msg_ << x; return (*this); } ~error() { ::std::cerr << "Error: " << msg_.str() << "\\n" << usage() << "\\n" << "Use --help for more information" << ::std::endl; exit(code_); } }; EOS # Help desc = "" unless $purpose.nil? desc += $purpose + "\\n\\n" end unless $description.nil? desc += $description.split(/\n/).join("\\n\" \\\n \"") + "\\n\\n" end h.puts(<