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regexps
Isabelle_DOF/Isabelle_DOF/master This commit looks good Details

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Burkhart Wolff 2019-07-19 16:24:47 +02:00
parent e74df1be4d
commit 00877b728e
1 changed files with 5 additions and 2 deletions
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7
examples/technical_report/IsaDof_Manual/04_RefMan.thy
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@ -346,8 +346,11 @@ text\<open>
\<^item> \<open>default_clause\<close> :
\<^rail>\<open> '<=' '"' expr '"' \<close>
\<^item> \<open>regexpr\<close> :
\<^rail>\<open> class_id | '(' regexpr ')' | (regexpr '||' regexpr) | (regexpr '~~' regexpr)\<close>
\<^rail>\<open> '\<lfloor>' class_id '\<rfloor>' | '(' regexpr ')' | (regexpr '||' regexpr) | (regexpr '~~' regexpr)
| ('\<lbrace>' regexpr '\<rbrace>') | ( '\<lbrace>' regexpr '\<rbrace>\<^sup>*') \<close>
regular expressions describe sequences of \<open>class_id\<close>s (and indirect sequences of document
items corresponding to the \<open>class_id\<close>s). The constructors for alternative, sequence,
repetitions and non-empty sequence follow in the top-down order of the above diagram.
\<close>