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1#!/usr/bin/env python 

2 

3""" 

4camcops_server/cc_modules/cc_nlp.py 

5 

6=============================================================================== 

7 

8 Copyright (C) 2012-2020 Rudolf Cardinal (rudolf@pobox.com). 

9 

10 This file is part of CamCOPS. 

11 

12 CamCOPS is free software: you can redistribute it and/or modify 

13 it under the terms of the GNU General Public License as published by 

14 the Free Software Foundation, either version 3 of the License, or 

15 (at your option) any later version. 

16 

17 CamCOPS is distributed in the hope that it will be useful, 

18 but WITHOUT ANY WARRANTY; without even the implied warranty of 

19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

20 GNU General Public License for more details. 

21 

22 You should have received a copy of the GNU General Public License 

23 along with CamCOPS. If not, see <https://www.gnu.org/licenses/>. 

24 

25=============================================================================== 

26 

27**Natural language processing functions (of sorts).** 

28 

29""" 

30 

31from typing import Dict 

32 

33# ============================================================================= 

34# Processing names 

35# ============================================================================= 

36 

37TITLES = [ 

38 "DR", 

39 "PROF", 

40 "MR", 

41 "MISS", 

42 "MRS", 

43 "MS", 

44 "SR" 

45] 

46 

47 

48def guess_name_components(s: str, uppercase: bool = True) -> Dict[str, str]: 

49 """ 

50 Takes a string such as 'Dr James T. Smith, M.D.' and returns parts. 

51 

52 This will not be perfect! If it isn't reasonably sure, it returns 

53 everything in the surname field. 

54 

55 Examples it will fail on: 

56 

57 - Nurse Specialist Jones 

58 

59 Returns: 

60 dict: dictionary with keys "surname", "forename", "prefix" 

61 

62 """ 

63 # Hard. 

64 # http://stackoverflow.com/questions/4276905/ 

65 

66 prefix = "" 

67 forename = "" 

68 

69 # 1. Separate on spaces, chucking any blanks 

70 if s: 

71 parts = [p for p in s.split(" ") if p] 

72 else: 

73 parts = [] 

74 

75 # 2. Prefix? 

76 if len(parts) > 0: 

77 p = parts[0] 

78 if "." in p or p.replace(".", "").upper() in TITLES: 

79 prefix = p 

80 parts = parts[1:] 

81 

82 # 3. Forename, surname 

83 if len(parts) == 2: 

84 if parts[0][-1] == ",": # SURNAME, FORENAME 

85 forename = parts[1] 

86 surname = parts[0] 

87 else: # FORENAME SURNAME 

88 forename = parts[0] 

89 surname = parts[1] 

90 else: # No idea, really; shove it all in the surname component. 

91 surname = " ".join(parts) 

92 

93 if uppercase: 

94 surname = surname.upper() 

95 forename = forename.upper() 

96 prefix = prefix.upper() 

97 return dict( 

98 surname=surname, 

99 forename=forename, 

100 prefix=prefix 

101 )