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Diffstat (limited to 'Master/texmf-dist/scripts/context/ruby/base/switch.rb')
-rw-r--r-- | Master/texmf-dist/scripts/context/ruby/base/switch.rb | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/Master/texmf-dist/scripts/context/ruby/base/switch.rb b/Master/texmf-dist/scripts/context/ruby/base/switch.rb new file mode 100644 index 00000000000..64d518bd42f --- /dev/null +++ b/Master/texmf-dist/scripts/context/ruby/base/switch.rb @@ -0,0 +1,605 @@ +# module : base/switch +# copyright : PRAGMA Advanced Document Engineering +# version : 2002-2005 +# author : Hans Hagen +# +# project : ConTeXt / eXaMpLe +# concept : Hans Hagen +# info : j.hagen@xs4all.nl +# www : www.pragma-ade.com + +# we cannot use getoptlong because we want to be more +# tolerant; also we want to be case insensitive (2002). + +# we could make each option a class itself, but this is +# simpler; also we can put more in the array + +# beware: regexps/o in methods are optimized globally + +require "rbconfig" + +$mswindows = Config::CONFIG['host_os'] =~ /mswin/ +$separator = File::PATH_SEPARATOR + +class String + + def has_suffix?(suffix) + self =~ /\.#{suffix}$/i + end + +end + +# may move to another module + +class File + + def File.needsupdate(oldname,newname) + begin + if $mswindows then + return File.stat(oldname).mtime > File.stat(newname).mtime + else + return File.stat(oldname).mtime != File.stat(newname).mtime + end + rescue + return true + end + end + + def File.syncmtimes(oldname,newname) + begin + if $mswindows then + # does not work (yet) + t = File.mtime(oldname) # i'm not sure if the time is frozen, so we do it here + File.utime(0,t,oldname,newname) + else + t = File.mtime(oldname) # i'm not sure if the time is frozen, so we do it here + File.utime(0,t,oldname,newname) + end + rescue + end + end + + def File.timestamp(name) + begin + "#{File.stat(name).mtime}" + rescue + return 'unknown' + end + end + +end + +# main thing + +module CommandBase + + # this module can be used as a mixin in a command handler + + $stdout.sync = true + + def initialize(commandline,logger,banner) + @commandline, @logger, @banner = commandline, logger, banner + @forcenewline, @versiondone = false, false + version if @commandline.option('version') + end + + def reportlines(*str) + @logger.reportlines(str) + end + + # only works in 1.8 + # + # def report(*str) + # @logger.report(str) + # end + # + # def version # just a bit of playing with defs + # report(@banner.join(' - ')) + # def report(*str) + # @logger.report + # @logger.report(str) + # def report(*str) + # @logger.report(str) + # end + # end + # def version + # end + # end + + def report(*str) + initlogger ; @logger.report(str) + end + + def debug(*str) + initlogger ; @logger.debug(str) + end + + def error(*str) + initlogger ; @logger.error(str) + end + + def initlogger + if @forcenewline then + @logger.report + @forcenewline = false + end + end + + def logger + @logger + end + + def version # just a bit of playing with defs + unless @versiondone then + report(@banner.join(' - ')) + @forcenewline = true + @versiondone = true + end + end + + def help + version # is nilled when already given + @commandline.helpkeys.each do |k| + if @commandline.help?(k) then + kstr = ('--'+k).ljust(@commandline.helplength+2) + message = @commandline.helptext(k) + message = '' if message == CommandLine::NOHELP + message = message.split(/\s*\n\s*/) + loop do + report("#{kstr} #{message.shift}") + kstr = ' '*kstr.length + break if message.length == 0 + end + end + end + end + + def option(key) + @commandline.option(key) + end + def oneof(*key) + @commandline.oneof(*key) + end + + def globfiles(pattern='*',suffix=nil) + @commandline.setarguments([pattern].flatten) + if files = findfiles(suffix) then + @commandline.setarguments(files) + else + @commandline.setarguments + end + end + + private + + def findfiles(suffix=nil) + + if @commandline.arguments.length>1 then + return @commandline.arguments + else + pattern = @commandline.argument('first') + pattern = '*' if pattern.empty? + if suffix && ! pattern.match(/\..+$/o) then + suffix = '.' + suffix + pattern += suffix unless pattern =~ /#{suffix}$/ + end + # not {} safe + pattern = '**/' + pattern if @commandline.option('recurse') + files = Dir[pattern] + if files && files.length>0 then + return files + else + pattern = @commandline.argument('first') + if FileTest.file?(pattern) then + return [pattern] + else + report("no files match pattern #{pattern}") + return nil + end + end + end + + end + + def globbed(pattern,recurse=false) + + files = Array.new + pattern.split(' ').each do |p| + if recurse then + if p =~ /^(.*)(\/.*?)$/i then + p = $1 + '/**' + $2 + else + p = '**/' + p + end + p.gsub!(/[\\\/]+/, '/') + end + files.push(Dir.glob(p)) + end + files.flatten.sort do |a,b| + pathcompare(a,b) + end + end + + def pathcompare(a,b) + + aa, bb = a.split('/'), b.split('/') + if aa.length == bb.length then + aa.each_index do |i| + if aa[i]<bb[i] then + return -1 + elsif aa[i]>bb[i] then + return +1 + end + end + return 0 + else + return aa.length <=> bb.length + end + + end + +end + +class CommandLine + + VALUE, FLAG = 1, 2 + NOHELP = 'no arguments' + + def initialize(prefix='-') + + @registered = Array.new + @options = Hash.new + @unchecked = Hash.new + @arguments = Array.new + @original = ARGV.join(' ') + @helptext = Hash.new + @mandated = Hash.new + @provided = Hash.new + @prefix = prefix + @actions = Array.new + + # The quotes in --switch="some value" get lost in ARGV, so we need to do some trickery here. + + @original = '' + ARGV.each do |a| + aa = a.strip.gsub(/^([#{@prefix}]+\w+\=)([^\"].*?\s+.*[^\"])$/) do + $1 + "\"" + $2 + "\"" + end + @original += if @original.empty? then '' else ' ' end + aa + end + + end + + def setarguments(args=[]) + @arguments = if args then args else [] end + end + + def register(option,shortcut,kind,default=false,action=false,helptext='') + if kind == FLAG then + @options[option] = default + elsif not default then + @options[option] = '' + else + @options[option] = default + end + @registered.push([option,shortcut,kind]) + @mandated[option] = false + # @provided[option] = false + @helptext[option] = helptext + @actions.push(option) if action + end + + def registerflag(option,default=false,helptext='') + if default.class == String then + register(option,'',FLAG,false,false,default) + else + register(option,'',FLAG,false,false,helptext) + end + end + + def registervalue(option,default='',helptext='') + register(option,'',VALUE,default,false,helptext) + end + + def registeraction(option,helptext='') + register(option,'',FLAG,false,true,helptext) + end + + def registermandate(*option) + [*option].each do |o| + [o].each do |oo| + @mandated[oo] = true + end + end + end + + def actions + a = @actions.delete_if do |t| + ! option(t) + end + if a && a.length>0 then + return a + else + return nil + end + end + + def action + @actions.each do |t| + return t if option(t) + end + return nil + end + + def forgotten + @mandated.keys.sort - @provided.keys.sort + end + + def registerhelp(option,text='') + @helptext['unknown'] = if text.empty? then option else text end + end + + def helpkeys(option='.*') + @helptext.keys.sort.grep(/#{option}/) + end + + def helptext(option) + @helptext.fetch(option,'') + end + + def help?(option) + @helptext[option] && ! @helptext[option].empty? + end + + def helplength + n = 0 + @helptext.keys.each do |h| + n = h.length if h.length>n + end + return n + end + + def expand + + # todo : '' or false, depending on type + # @options.clear + # @arguments.clear + + dirtyvalue(@original).split(' ').each do |arg| + case arg + when /^[#{@prefix}][#{@prefix}](.+?)\=(.*?)$/ then locatedouble($1,$2) + when /^[#{@prefix}][#{@prefix}](.+?)$/ then locatedouble($1,false) + when /^[#{@prefix}](.)\=(.)$/ then locatesingle($1,$2) + when /^[#{@prefix}](.+?)$/ then locateseries($1,false) + when /^[\+\-]+/o then # do nothing + else + arguments.push(arg) + end + end + + @options or @unchecked or @arguments + + end + + def extend (str) + @original = @original + ' ' + str + end + + def replace (str) + @original = str + end + + def show + # print "-- options --\n" + @options.keys.sort.each do |key| + print "option: #{key} -> #{@options[key]}\n" + end + # print "-- arguments --\n" + @arguments.each_index do |key| + print "argument: #{key} -> #{@arguments[key]}\n" + end + end + + def option(str,default=nil) + if @options.key?(str) then + @options[str] + elsif default then + default + else + @options[str] + end + end + + def checkedoption(str,default='') + if @options.key?(str) then + if @options[str].empty? then default else @options[str] end + else + default + end + end + + def foundoption(str,default='') + str = str.split(',') if str.class == String + str.each do |s| + return str if @options.key?(str) + end + return default + end + + def oneof(*key) + [*key].flatten.compact.each do |k| + return true if @options.key?(k) && @options[k] + end + return false + end + + def setoption(str,value) + @options[str] = value + end + + def getoption(str,value='') # value ? + @options[str] + end + + def argument(n=0) + if n.class == String then + case n + when 'first' then argument(0) + when 'second' then argument(1) + when 'third' then argument(2) + else + argument(0) + end + elsif @arguments[n] then + @arguments[n] + else + '' + end + end + + # a few local methods, cannot be defined nested (yet) + + private + + def dirtyvalue(value) + if value then + value.gsub(/([\"\'])(.*?)\1/) do + $2.gsub(/\s+/o, "\xFF") + end + else + '' + end + end + + def cleanvalue(value) + if value then + # value.sub(/^([\"\'])(.*?)\1$/) { $2.gsub(/\xFF/o, ' ') } + value.gsub(/\xFF/o, ' ') + else + '' + end + end + + def locatedouble(key, value) + + foundkey, foundkind = nil, nil + + @registered.each do |option, shortcut, kind| + if option == key then + foundkey, foundkind = option, kind + break + end + end + unless foundkey then + @registered.each do |option, shortcut, kind| + n = 0 + if option =~ /^#{key}/i then + case n + when 0 + foundkey, foundkind = option, kind + n = 1 + when 1 + # ambiguous matches, like --fix => --fixme --fixyou + foundkey, foundkind = nil, nil + break + end + end + end + end + if foundkey then + @provided[foundkey] = true + if foundkind == VALUE then + @options[foundkey] = cleanvalue(value) + else + @options[foundkey] = true + end + else + if value.class == FalseClass then + @unchecked[key] = true + else + @unchecked[key] = cleanvalue(value) + end + end + + end + + def locatesingle(key, value) + + @registered.each do |option, shortcut, kind| + if shortcut == key then + @provided[option] = true + @options[option] = if kind == VALUE then '' else cleanvalue(value) end + break + end + end + + end + + def locateseries(series, value) + + series.each do |key| + locatesingle(key,cleanvalue(value)) + end + + end + + public + + attr_reader :arguments, :options, :original, :unchecked + +end + +# options = CommandLine.new +# +# options.register("filename", "f", CommandLine::VALUE) +# options.register("request" , "r", CommandLine::VALUE) +# options.register("verbose" , "v", CommandLine::FLAG) +# +# options.expand +# options.extend(str) +# options.show +# +# c = CommandLine.new +# +# c.registervalue('aaaa') +# c.registervalue('test') +# c.registervalue('zzzz') +# +# c.registerhelp('aaaa','some aaaa to enter') +# c.registerhelp('test','some text to enter') +# c.registerhelp('zzzz','some zzzz to enter') +# +# c.registermandate('test') +# +# c.expand +# +# class CommandLine +# +# def showhelp (banner,*str) +# if helpkeys(*str).length>0 +# print banner +# helpkeys(*str).each do |h| +# print helptext(h) + "\n" +# end +# true +# else +# false +# end +# end +# +# def showmandate(banner) +# if forgotten.length>0 +# print banner +# forgotten.each do |f| +# print helptext(f) + "\n" +# end +# true +# else +# false +# end +# end +# +# end +# +# c.showhelp("you can provide:\n\n") +# c.showmandate("you also need to provide:\n\n") |