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|
# module : base/ctx
# copyright : PRAGMA Advanced Document Engineering
# version : 2005
# author : Hans Hagen
#
# project : ConTeXt / eXaMpLe
# concept : Hans Hagen
# info : j.hagen@xs4all.nl
# www : www.pragma-ade.com
# todo: write systemcall for mpost to file so that it can be run
# faster
# report ?
require 'base/system'
require 'base/file'
require 'base/switch' # has needsupdate, bad place
require 'rexml/document'
class CtxRunner
attr_reader :environments, :modules, :filters
@@suffix = 'prep'
def initialize(jobname=nil,logger=nil)
if @logger = logger then
def report(str='')
@logger.report(str)
end
else
def report(str='')
puts(str)
end
end
@jobname = jobname
@ctxname = nil
@xmldata = nil
@prepfiles = Hash.new
@environments = Array.new
@modules = Array.new
@filters = Array.new
end
def manipulate(ctxname=nil,defaultname=nil)
if ctxname then
@ctxname = ctxname
@jobname = File.suffixed(@ctxname,'tex') unless @jobname
else
@ctxname = File.suffixed(@jobname,'ctx') if @jobname
end
if not @ctxname then
report('no ctx file specified')
return
end
# name can be kpse:res-make.ctx
if not FileTest.file?(@ctxname) then
fullname, done = '', false
if @ctxname =~ /^kpse:/ then
begin
if fullname = Kpse.found(@ctxname.sub(/^kpse:/,'')) then
@ctxname, done = fullname, true
end
rescue
# should not happen
end
else
['..','../..'].each do |path|
begin
fullname = File.join(path,@ctxname)
if FileTest.file?(fullname) then
@ctxname, done = fullname, true
end
rescue
# probably strange join
end
break if done
end
end
if ! done && defaultname && FileTest.file?(defaultname) then
report("using default ctxfile #{defaultname}")
@ctxname = defaultname
end
if not done then
report('no ctx file found')
return false
end
end
@xmldata = IO.read(@ctxname)
unless @xmldata =~ /^.*<\?xml.*?\?>/moi then
report("ctx file #{@ctxname} is no xml file, skipping")
return
else
report("loading ctx file #{@ctxname}")
end
begin
@xmldata = REXML::Document.new(@xmldata)
rescue
report('provide valid ctx file (xml error)')
return
else
include(@xmldata,'ctx:include','name')
end
begin
variables = Hash.new
if @jobname then
variables['job'] = @jobname
end
REXML::XPath.each(@xmldata.root,"//ctx:value[@name='job']") do |val|
substititute(val,variables['job'])
end
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:message") do |mes|
report("preprocessing: #{justtext(mes)}")
end
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:process/ctx:resources/ctx:environment") do |sty|
@environments << justtext(sty)
end
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:process/ctx:resources/ctx:module") do |mod|
@modules << justtext(mod)
end
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:process/ctx:resources/ctx:filter") do |fil|
@filters << justtext(fil)
end
commands = Hash.new
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:preprocess/ctx:processors/ctx:processor") do |pre|
begin
commands[pre.attributes['name']] = pre
rescue
end
end
suffix = @@suffix
begin
suffix = REXML::XPath.match(@xmldata.root,"/ctx:job/ctx:preprocess/@suffix").to_s
rescue
puts $!
suffix = @@suffix
else
if suffix && suffix.empty? then suffix = @@suffix end
end
REXML::XPath.each(@xmldata.root,"/ctx:job/ctx:preprocess/ctx:files") do |files|
REXML::XPath.each(files,"ctx:file") do |pattern|
preprocessor = pattern.attributes['processor']
if preprocessor and not preprocessor.empty? then
pattern = justtext(pattern)
Dir.glob(pattern).each do |oldfile|
newfile = "#{oldfile}.#{suffix}"
if File.needsupdate(oldfile,newfile) then
begin
File.delete(newfile)
rescue
# hope for the best
end
# there can be a sequence of processors
preprocessor.split(',').each do |pp|
if command = commands[pp] then
# a lie: no <?xml ...?>
command = REXML::Document.new(command.to_s) # don't infect original
command = command.elements["ctx:processor"]
begin
if suf = command.attributes['suffix'] then
newfile = "#{oldfile}.#{suf}"
end
rescue
end
report("preprocessing #{oldfile} into #{newfile} using #{pp}")
REXML::XPath.each(command,"ctx:old") do |value| replace(value,oldfile) end
REXML::XPath.each(command,"ctx:new") do |value| replace(value,newfile) end
variables['old'] = oldfile
variables['new'] = newfile
REXML::XPath.each(command,"ctx:value") do |value|
if name = value.attributes['name'] then
substititute(value,variables[name.to_s])
end
end
command = justtext(command)
report(command)
unless ok = System.run(command) then
report("error in preprocessing file #{oldfile}")
end
end
end
if FileTest.file?(newfile) then
File.syncmtimes(oldfile,newfile)
else
report("preprocessing #{oldfile} gave no #{newfile}")
end
else
report("#{oldfile} needs no preprocessing")
end
@prepfiles[oldfile] = FileTest.file?(newfile)
end
end
end
end
rescue
report("fatal error in preprocessing #{@ctxname}: #{$!}")
end
end
def savelog(ctlname=nil)
unless ctlname then
if @jobname then
ctlname = File.suffixed(@jobname,'ctl')
elsif @ctxname then
ctlname = File.suffixed(@ctxname,'ctl')
else
return
end
end
if @prepfiles.length > 0 then
if log = File.open(ctlname,'w') then
log << "<?xml version='1.0' standalone='yes'?>\n\n"
log << "<ctx:preplist>\n"
@prepfiles.keys.sort.each do |prep|
log << "\t<ctx:prepfile done='#{yes_or_no(@prepfiles[prep])}'>#{File.basename(prep)}</ctx:prepfile>\n"
end
log << "</ctx:preplist>\n"
log.close
end
else
begin
File.delete(ctlname)
rescue
end
end
end
private
def include(xmldata,element='ctx:include',attribute='name')
loop do
begin
more = false
REXML::XPath.each(xmldata.root,element) do |e|
begin
name = e.attributes.get_attribute(attribute).to_s
name = e.text.to_s if name.empty?
name.strip! if name
done = false
if name and not name.empty? then
['.',File.dirname(@ctxname),'..','../..'].each do |path|
begin
fullname = if path == '.' then name else File.join(path,name) end
if FileTest.file?(fullname) then
if f = File.open(fullname,'r') and i = REXML::Document.new(f) then
report("including ctx file #{name}")
REXML::XPath.each(i.root,"*") do |ii|
xmldata.root.insert_after(e,ii)
more = true
end
end
done = true
end
rescue
end
end
break if done
end
report("no valid ctx inclusion file #{name}") unless done
rescue Exception
# skip this file
ensure
xmldata.root.delete(e)
end
end
break unless more
rescue Exception
break # forget about inclusion
end
end
end
private
def yes_or_no(b)
if b then 'yes' else 'no' end
end
private # copied from rlxtools.rb
def justtext(str)
str = str.to_s
str.gsub!(/<[^>]*?>/o, '')
str.gsub!(/\s+/o, ' ')
str.gsub!(/</o, '<')
str.gsub!(/>/o, '>')
str.gsub!(/&/o, '&')
str.gsub!(/"/o, '"')
str.gsub!(/[\/\\]+/o, '/')
return str.strip
end
def substititute(value,str)
if str then
begin
if value.attributes.key?('method') then
str = filtered(str.to_s,value.attributes['method'].to_s)
end
if str.empty? && value.attributes.key?('default') then
str = value.attributes['default'].to_s
end
value.insert_after(value,REXML::Text.new(str.to_s))
rescue Exception
end
end
end
def replace(value,str)
if str then
begin
value.insert_after(value,REXML::Text.new(str.to_s))
rescue Exception
end
end
end
def filtered(str,method)
str = str.to_s # to be sure
case method
when 'name' then # no path, no suffix
case str
when /^.*[\\\/](.+?)\..*?$/o then $1
when /^.*[\\\/](.+?)$/o then $1
when /^(.*)\..*?$/o then $1
else str
end
when 'path' then if str =~ /^(.+)([\\\/])(.*?)$/o then $1 else '' end
when 'suffix' then if str =~ /^.*\.(.*?)$/o then $1 else '' end
when 'nosuffix' then if str =~ /^(.*)\..*?$/o then $1 else str end
when 'nopath' then if str =~ /^.*[\\\/](.*?)$/o then $1 else str end
else str
end
end
end
|
