| #======================================================================= |
| # |
| # Python Lexical Analyser |
| # |
| #======================================================================= |
| |
| """ |
| The Plex module provides lexical analysers with similar capabilities |
| to GNU Flex. The following classes and functions are exported; |
| see the attached docstrings for more information. |
| |
| Scanner For scanning a character stream under the |
| direction of a Lexicon. |
| |
| Lexicon For constructing a lexical definition |
| to be used by a Scanner. |
| |
| Str, Any, AnyBut, AnyChar, Seq, Alt, Opt, Rep, Rep1, |
| Bol, Eol, Eof, Empty |
| |
| Regular expression constructors, for building pattern |
| definitions for a Lexicon. |
| |
| State For defining scanner states when creating a |
| Lexicon. |
| |
| TEXT, IGNORE, Begin |
| |
| Actions for associating with patterns when |
| creating a Lexicon. |
| """ |
| |
| from Actions import TEXT, IGNORE, Begin |
| from Lexicons import Lexicon, State |
| from Regexps import RE, Seq, Alt, Rep1, Empty, Str, Any, AnyBut, AnyChar, Range |
| from Regexps import Opt, Rep, Bol, Eol, Eof, Case, NoCase |
| from Scanners import Scanner |
| |
| |
| |
