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add nerd-commenter
[etc/vim.git] / .vim / plugin / lbdbq.vim
1 " Name: lbdbq.vim
2 " Summary: functions and mode mappings for querying lbdb from Vim
3 " Copyright: Copyright (C) 2007 Stefano Zacchiroli <zack@bononia.it>
4 " License: GNU GPL version 3 or above
5 " Maintainer: Stefano Zacchiroli <zack@bononia.it>
6 " URL: http://www.vim.org/scripts/script.php?script_id=1757
7 " Version: 0.3
8
9 if exists("loaded_lbdbq")
10     finish
11 endif
12 let loaded_lbdbq = 1
13
14 " queries lbdb with a query string and return a list of pairs:
15 " [['full name', 'email'], ['full name', 'email'], ...]
16 function! LbdbQuery(qstring)
17   let output = system("lbdbq '" . a:qstring . "'")
18   let results = []
19   for line in split(output, "\n")[1:] " skip first line (lbdbq summary)
20     let fields = split(line, "\t")
21     let results += [ [fields[1], fields[0]] ]
22   endfor
23   return results
24 endfunction
25
26 " check if a potential query string has already been expanded in a complete
27 " recipient. E.g.: 'Stefano Zacchiroli <zack@bononia.it>' is a complete
28 " recipient, 'stefano zacchiroli' and 'stefano' are not
29 function! LbdbIsExpanded(qstring)
30   return (a:qstring =~ '^\S\+@\S\+$\|<\S\+@\S\+>$')
31 endfunction
32
33 function! LbdbTrim(s)
34   return substitute(a:s, '^\s*\(.\{-}\)\s*$', '\1', '')
35 endfunction
36
37 " expand a (short) contact given as a query string, asking interactively if
38 " disambiguation is needed
39 " E.g.: 'stefano zacchiroli' -> 'Stefano Zacchiroli <zack@bononia.it>'
40 function! LbdbExpandContact(qstring)
41   let qstring = LbdbTrim(a:qstring)
42   if LbdbIsExpanded(qstring)
43     return qstring
44   else  " try to expand (short) contact
45     let contacts = LbdbQuery(qstring)
46     let contact = []
47     if empty(contacts)  " no matching (long) contact found
48       return qstring
49     elseif len(contacts) > 1  " multiple matches: disambiguate
50       echo "Choose a recipient for '" . qstring . "':"
51       let choices = []
52       let counter = 0
53       for contact in contacts
54         let choices += [ printf("%2d. %s <%s>", counter, contact[0], contact[1]) ]
55         let counter += 1
56       endfor
57       let contact = contacts[inputlist(choices)]
58     else  " len(contacts) == 1, i.e. one single match
59       let contact = contacts[0]
60     endif
61     return printf("\"%s\" <%s>", escape(contact[0], '"'), contact[1])
62   endif
63 endfunction
64
65 " as above but support input strings composed by comma separated (short)
66 " contacts
67 function! LbdbExpandContacts(raw)
68   let raw = LbdbTrim(a:raw)
69   let qstrings = split(raw, '\s*,\s*')
70   let exp_strings = []
71   for qstring in qstrings
72     let exp_strings += [ LbdbExpandContact(qstring) ]
73   endfor
74   return join(exp_strings, ', ')
75 endfunction
76
77 " expand all (short) contacts on a given recipient line, asking interactively
78 " if disambiguation is needed.
79 " E.g.:
80 " 'To: stefano zacchiroli, bram'
81 " -> 'To: Stefano Zacchiroli <zack@bononia.it>, Bram Moolenaar <Bram@moolenaar.net>
82 function! LbdbExpandRcptLine(recpt_line)
83   if a:recpt_line =~ '^\w\+:'  " line is the *beginning* of a RFC822 field
84     let raw = substitute(a:recpt_line, '^\w\+:\s*', '', '')
85     let recpt_kind = substitute(a:recpt_line, '^\(\w\+\):\s*.*$', '\1', '')
86     let exp_line = recpt_kind . ': ' . LbdbExpandContacts(raw)
87   elseif a:recpt_line =~ '^\s\+'  " line is the *continuation* of a RFC822 field
88     let raw = substitute(a:recpt_line, '^\s\+', '', '')
89     let lpadding = substitute(a:recpt_line, '\S.*$', '', '')
90     let exp_line = lpadding . LbdbExpandContacts(raw)
91   else
92     return a:recpt_line
93   endif
94   if a:recpt_line =~ ',\s*$'
95     let exp_line .= ','
96   endif
97   return exp_line
98 endfunction
99
100 function! LbdbExpandCurLine()
101   call setline(line('.'), LbdbExpandRcptLine(getline('.')))
102 endfunction
103
104 function! LbdbExpandVisual()
105   if visualmode() ==# 'v'
106     normal gvy
107     let raw = getreg('"')
108     let expanded = ''
109     if raw =~ ","
110       let expanded = LbdbExpandContacts(raw)
111     else
112       let expanded = LbdbExpandContact(raw)
113     endif
114     call setreg('"', expanded)
115     normal gvP
116   elseif visualmode() ==# 'V'
117     call LbdbExpandCurLine()
118   end
119 endfunction
120
121 nmap <silent> <LocalLeader>lb :call LbdbExpandCurLine()<RETURN>
122 vmap <silent> <LocalLeader>lb :call LbdbExpandVisual()<RETURN>
123 imap <silent> <LocalLeader>lb <ESC>:call LbdbExpandCurLine()<RETURN>A
124