Database.BBDB

Description

This module can read and write BBDB files, and provides a few handy functions for getting at fields inside of BBDB data.

BBDB (http://bbdb.sourceforge.net/) is short for the Insidious Big Brother Database, which is a contact management utility that can be integrated into Emacs (the one true editor.) Since bbdb.el is implemented in elisp, it can be difficult to "get at" the data inside a .bbdb file with external programs. Many years ago, I wrote a BBDB interface for perl, but having experience enlightenment at the hands of the category gods, I`m now dabbling with Haskell. But having been a loyal Emacs user for many years now, I wanted a way to spam my friends while still using my favorite programming language. Hence the module Data.BBDB.

The following is the data layout for a BBDB record. I have created a sample record with my own data. Each field is just separated by a space. I have added comments to the right

 ["Henry"                                   The first name - a string
 "Laxen"                                    The last name - a string
 ("Henry, Enrique")                         Also Known As - comma separated list
 "Elegant Solutions"                        Business name - a string
 (
  ["reno" 775 624 1851 0]                   Phone number field - US style
  ["chapala" "011-52-376-765-3181"]         Phone number field - International style
 ) 
 (
  ["mailing"                                The address location, then a list
  ("10580 N. McCarran Blvd." "#115-396")    for the street address, then one each
  "Reno" "Nevada" "89503" "USA"             for City, State, Zip Code, and country
 ] 
  ["home"                                   another Address field
  ("Via Alta #6" "Gaviotas #10")            The street list
  "Chapala" "Jalisco"                       City State
  "45900" "Mexico"                          Zip and country
 ]) 
 (
  "nadine.and.henry@pobox.com"              the net addresses - a list of strings
  "nadinelaxen@pobox.com"
 ) 
 (
  (notes . "Always split aces and eights")  The notes field - a list of alists
  (creation-date . "2010-09-03") 
  (timestamp . "2010-09-03")
  (birthday . "6/15")
 ) 
 nil                                        The cache vector - always nil
 ]

Inside the .bbdb file, this looks like: ["Henry" "Laxen" ("Henry, Enrique") "Elegant Solutions" (["reno" 775 624 1851 0] ["chapala" "011-52-376-765-3181"]) (["mailing" ("10580 N. McCarran Blvd." "#115-396") "Reno" "Nevada" "89503" "USA"] ["home" ("Via Alta 10") "Chapala" "Jalisco" "45900" "Mexico"]) ("nadine.and.henry@pobox.com" "nadinelaxen@pobox.com") ((notes . "Always split aces and eights") (creation-date . "2010-09-03") (timestamp . "2010-09-03") (birthday . "6/15")) nil]

When parsed, this is represented inside Haskell as:

      BBDBEntry
        (BBDB{firstName = Just "Henry", lastName = Just "Laxen",
              aka = Just ["Henry, Enrique"], company = Just "Elegant Solutions",
              phone =
                Just
                  [USStyle "reno" ["775", "624", "1851", "0"],
                   InternationalStyle "chapala" "011-52-376-765-3181"],
              address =
                Just
                  [Address{location = "mailing",
                           streets =
                             Just ["10580 N. McCarran Blvd.", "#115-396"],
                           city = Just "Reno", state = Just "Nevada",
                           zipcode = Just "89503", country = Just "USA"},
                   Address{location = "home",
                           streets = Just ["Via Alta #6", "Gaviotas #10"],
                           city = Just "Chapala", state = Just "Jalisco",
                           zipcode = Just "45900", country = Just "Mexico"}],
              net = Just ["nadine.and.henry@pobox.com", "nadinelaxen@pobox.com"],
              notes =
                Just
                  (Note{unnote =
                          [("notes", "Always split aces and eights"),
                           ("creation-date", "2010-09-03"),
                           ("timestamp", "2010-09-03"),
                           ("birthday", "6/15")]})})]

Synopsis

Documentation

type Location = String Source

A Location is just a synonym for String. Each BBDB Address and Phone field must be associated with a location, such as home or work

type Street = String Source

A Street is also a synonym for String. Each Address may have a list of Streets associated with it.

type Symbol = String Source

A Symbol is just a String, but Lisp only wants alphanumerics and the characters _ (underscore) and - (dash)

data Address Source

An Address must have a location, and may have associated streets, a city, a state, a zipcode, and an country.

Constructors

Address
Fields location :: Location streets :: Maybe [String] city :: Maybe String state :: Maybe String zipcode :: Maybe String country :: Maybe String

Instances

Eq Address
Ord Address
Show Address
LispAble Address
LispAble (Maybe [Address])

type Alist = (Symbol, String)Source

An Alist is an Association List. Lisp writes these as (key . value) We convert these to a tuple in haskell where fst is key and snd is value.

data Note Source

The Note field of a BBDB record is just a list of associations. If you don't provide a your own key, the BBDB will use the word "note"

Constructors

Note
Fields unnote :: [Alist]

Instances

Eq Note
Ord Note
Show Note
LispAble Note
LispAble (Maybe Note)

data Phone Source

For some unknow reason, BBDB can have phones in two different formats. In USStyle, the phone is list of integers, in the form of Area code, Prefix, Number, and Extension. I don't bother to convert the strings of digits to actual integers. In InternationalStyle, the phone number is just a String.

Constructors

USStyle Location [String]
InternationalStyle Location String

Instances

Eq Phone
Ord Phone
Show Phone
LispAble Phone
LispAble (Maybe [Phone])

data BBDB Source

Constructors

BBDB

Fields

firstName :: Maybe String: the first name. Why is this a Maybe? Because sometimes you just have a company, and not a specific first name
lastName :: Maybe String
aka :: Maybe [String]: aka = Also Known As. Sometimes the same email address can match several users, so BBDB gives you the option of remembering different names for the same address
company :: Maybe String: The company if any
phone :: Maybe [Phone]: A list of phone numbers, either in US Style or International Style
address :: Maybe [Address]: A list of addresses, keyed by location
net :: Maybe [String]: A list of email addresses. BBDB uses the first element of this field when you create a new email
notes :: Maybe Note: Any number of key, value pairs. Great for random data.

Instances

Eq BBDB
Ord BBDB
Show BBDB
LispAble BBDB

data BBDBFile Source

At the beginning of a BBDB file are a variable number of comments, which specify the encoding type and the version. We just ignore them. Comments starts with a ; (semi-colon) and continue to end of line

Constructors

BBDBComment String
BBDBEntry BBDB

Instances

Eq BBDBFile
Ord BBDBFile
Show BBDBFile
LispAble BBDBFile
LispAble [BBDBFile]	the inverse of bbdbFileParse

class LispAble s whereSource

convert a Haskell string to a string that Lisp likes

LispAble is how we convert from our internal representation of a BBDB record, to one that will make Lisp and Emacs happy. (Sans bugs)

 testInverse = do
   let inFile = "/home/henry/.bbdb"
   actualBBDBFile <- readFile inFile
   parsedBBDBdata <- readBBDB inFile
   let bbdbDataOut = asLisp parsedBBDBdata
   print $ actualBBDBFile == bbdbDataOut

should print True

Methods

asLisp :: s -> String Source

Instances

LispAble String
LispAble BBDBFile
LispAble BBDB
LispAble Note
LispAble Alist
LispAble Address
LispAble Phone
LispAble [BBDBFile]	the inverse of bbdbFileParse
LispAble (Maybe [String])
LispAble (Maybe [Address])
LispAble (Maybe [Phone])
LispAble (Maybe String)
LispAble (Maybe Note)

bbdbDefault :: BBDB Source

key :: (x, y) -> xSource

Given an Alist, return the key

value :: (x, y) -> ySource

Given an Alist, return the value

bbdbFileParse :: Parser [BBDBFile]Source

The Parser for a BBDB file, as it is written on disk. If you read a .bbdb file with:

 testParse :: FilePath -> IO (Either ParseError [BBDBFile])
 testParse filename = do
   b <- readFile filename
   return $  parse bbdbFileParse "bbdb" b

You will get IO (Right [BBDBFile]) if the parse went ok

justEntry :: BBDBFile -> Maybe BBDB Source

converts a BBDB comment to nothing, and a BBDB entry to just the entry

justEntries :: [BBDBFile] -> [BBDB]Source

returns a list of only the actual bbdb entries, removing the comments

readBBDB :: String -> IO [BBDBFile]Source

read the given file and call error if the parse failed, otherwise return the entire file as a list of BBDBFile records.

wantNote :: (Alist -> Bool) -> BBDB -> Bool Source

Notes inside a BBDB record are awkward to get at. This helper function digs into the record and applies a function to each Alist element of the record. It returns true if it any of the Alists in the note return true. For example:

 hasBirthday :: BBDB -> Bool
 hasBirthday = wantNote (\x -> key x == "birthday")

will return True for any BBDB record that has a "birthday" key in it's notes field

getNote :: String -> BBDB -> Maybe String Source

Lookup the value whose key is the given string. If found returns Just the value, otherwise Nothing For example:

 getBirthday :: BBDB -> Maybe String
 getBirthday = getNote "birthday"

mapBBDB :: (BBDB -> BBDB) -> [BBDBFile] -> [BBDBFile]Source

This and filterBBDB are the main functions you should use to manipulate a set of BBDB entries. You supply a function that applies a transformation on a BBDB record, and this function will apply that transformation to every BBDBEntry in a BBDB file. Sample usage:

 starCompanies = do
   b <- readBBDB "/home/henry/.bbdb"
   writeFile "/home/henry/.bbdb-new" $ asLisp . mapBBDB starCompany $ b
   where
     starCompany x = case (company x) of
       Nothing -> x
       Just y -> x { company = Just ("*" ++ y) }

Prepend a star ("*") to each company field of a BBDB file and write the result out as a new bbdb file.

filterBBDB :: (BBDB -> Bool) -> [BBDBFile] -> [BBDBFile]Source

Just like mapBBDB except it filters. You supply a function that takes a BBDB record to a Bool, and filterBBDB will return a new list of BBDBFile that satisfy that condition. Sample usage:

 import Text.Regex.Posix
 -- do regex matching while ignoring case, so "reno" matches "Reno"
 matches x = match (makeRegexOpts compIgnoreCase defaultExecOpt x :: Regex)

 getReno = do
   b <- readBBDB "/home/henry/.bbdb"
   let c = justEntries . filterBBDB hasReno $ b
   mapM_ print $ map (\a -> (firstName a, lastName a, address a)) c
   where
     isReno :: Maybe String -> Bool
     isReno = maybe False (matches "reno")
     anyAddressHasReno :: [Address] -> Bool
     anyAddressHasReno = any id . map (isReno . city)
     hasReno :: BBDB -> Bool
     hasReno = maybe False anyAddressHasReno . address

print the name and all addresses of anyone in the BBDB file who live in Reno.