Text Processing Services
************************

The modules described in this chapter provide a wide range of string
manipulation operations and other text processing services.

The "codecs" module described under Υπηρεσίες Δυαδικών Δεδομένων is
also highly relevant to text processing. In addition, see the
documentation for Python's built-in string type in Τύπος Ακολουθίας
(Sequence) Κειμένου --- str.

* "string" --- Common string operations

  * String constants

  * Custom string formatting

  * Format string syntax

    * Format specification mini-language

    * Format examples

  * Template strings ($-strings)

  * Helper functions

* "string.templatelib" --- Support for template string literals

  * Template strings

  * Types

  * Helper functions

* "re" --- Regular expression operations

  * Regular expression syntax

  * Module contents

    * Flags

    * Functions

    * Exceptions

  * Regular expression objects

  * Match objects

  * Regular expression examples

    * Checking for a pair

    * Simulating scanf()

    * search() vs. prefixmatch()

    * prefixmatch() vs. match()

    * Making a phonebook

    * Text munging

    * Finding all adverbs

    * Finding all adverbs and their positions

    * Raw string notation

    * Writing a tokenizer

* "difflib" --- Helpers for computing deltas

  * SequenceMatcher objects

  * SequenceMatcher examples

  * Differ objects

  * Differ example

  * A command-line interface to difflib

  * ndiff example

* "textwrap" --- Περιτύλιγμα και γέμισμα κειμένου

* "unicodedata" --- Unicode Database

* "stringprep" --- Internet String Preparation

* "readline" --- GNU readline interface

  * Init file

  * Line buffer

  * History file

  * History list

  * Startup hooks

  * Completion

  * Example

* "rlcompleter" --- Completion function for GNU readline
