src/HOL/Lex/README.html
changeset 4137 2ce2e659c2b1
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4136:ba267836dd7a 4137:2ce2e659c2b1
    28 For example, if the language consists just of the word <KBD>ab</KBD>, the
    28 For example, if the language consists just of the word <KBD>ab</KBD>, the
    29 input <KBD>ababaab</KBD> is partitioned into a chopped up prefix
    29 input <KBD>ababaab</KBD> is partitioned into a chopped up prefix
    30 <KBD>[ab,ab]</KBD> and the suffix <KBD>aab</KBD>.
    30 <KBD>[ab,ab]</KBD> and the suffix <KBD>aab</KBD>.
    31 <P>
    31 <P>
    32 
    32 
    33 The auto_chopper is implemented in theory AutoChopper. The top part of the
    33 The auto_chopper is implemented in theory AutoChopper. An alternative (more
    34 diagram, i.e. the translation of regular expressions into deterministic
    34 efficient) version is defined in AutoChopper1. However, no properties have
    35 finite automata is still missing.  <P>
    35 been proved for it yet.
    36 
    36 
       
    37 The top part of the diagram, i.e. the translation of regular expressions into
       
    38 deterministic finite automata is still missing (although we have some bits
       
    39 and pieces).
       
    40 <P>
       
    41 
       
    42 The directory also contains Regset_of_auto, a theory describing the
       
    43 translation of deterministic automata into regular sets.
    37 </BODY>
    44 </BODY>
    38 </HTML>
    45 </HTML>