Add "[" to the possible characters of TRANSITION_FNS.

Introducing "[" now we will start to write the code to parse the
character class expressions, i.e. [a-z0-9].  The `context` key will
contain a `set` with all the literal characters that were found, and all
the ranges too.  For parsing the ranges, a `range` key equivalent to the
one for the {m,n} range is used.  Despite the superficial syntax being
simmilar, its logic, semantic and implementation will be different.

* src/paca.mjs (TRANSITION_FNS) <"[">: Add new transition function for
  handling the start of a character class expression.
* tests/paca.mjs (TRANSITION_FNS): Add a singular test entry, that
  exercises the conditionless body of the function.

0 files changed, 0 insertions, 0 deletions