[GNU ELPA] Lex version 1.2

[ELPA update]

Version 1.2 of package Lex has just been released in GNU ELPA.
You can now find it in M-x list-packages RET.

Lex describes itself as:

  =============================
  Lexical analyser construction
  =============================

More at https://elpa.gnu.org/packages/lex.html

## Summary:

  Format of regexps is the same as used for `rx' and `sregex'.
  Additions:
  - (ere RE) specify regexps using the ERE syntax.
  - (inter REs...) (aka `&') make a regexp that only matches
    if all its branches match.  E.g. (inter (ere ".*a.*") (ere ".*b.*"))
    match any string that contain both an "a" and a "b", in any order.
  - (case-fold REs...) and (case-sensitive REs...) make a regexp that
    is case sensitive or not, regardless of case-fold-search.

  Input format of lexers:

  ALIST of the form ((RE . VAL) ...)

  Format of compiled DFA lexers:

  nil                     ; The trivial lexer that fails
  (CHAR . LEXER)
  (table . CHAR-TABLE)
  (stop VAL . LEXER)      ; Match the empty string at point or LEXER.
  (check (PREDICATE . ARG) SUCCESS-LEXER . FAILURE-LEXER)

## Recent NEWS: