more efficient Markup_Tree, based on branches sorted by quasi-order;
renamed markup_node.scala to markup_tree.scala and classes/objects accordingly;
Position.Range: produce actual Text.Range;
Symbol.Index.decode: convert 1-based Isabelle offsets here;
added static Command.range;
simplified Command.markup;
Document_Model.token_marker: flatten markup at most once;
tuned;
## targets
default: dvi
## dependencies
include ../Makefile.in
NAME = ref
FILES = ref.tex introduction.tex tactic.tex tctical.tex thm.tex \
theories.tex defining.tex syntax.tex substitution.tex \
simplifier.tex classical.tex ../proof.sty ../iman.sty \
../extra.sty ../ttbox.sty ../manual.bib
dvi: $(NAME).dvi
$(NAME).dvi: $(FILES) isabelle.eps
$(LATEX) $(NAME)
$(BIBTEX) $(NAME)
$(LATEX) $(NAME)
$(LATEX) $(NAME)
$(SEDINDEX) $(NAME)
$(LATEX) $(NAME)
pdf: $(NAME).pdf
$(NAME).pdf: $(FILES) isabelle.pdf
$(PDFLATEX) $(NAME)
$(BIBTEX) $(NAME)
$(PDFLATEX) $(NAME)
$(PDFLATEX) $(NAME)
$(SEDINDEX) $(NAME)
$(FIXBOOKMARKS) $(NAME).out
$(PDFLATEX) $(NAME)