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annotate runtime/syntax/prolog.vim @ 27991:e8cad604c218

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Added tag v8.2.4520 for changeset 27ae8ea82d7ab9e0e4f8f894394dad7fd6344a5a
author Bram Moolenaar <Bram@vim.org>
date Sun, 06 Mar 2022 21:00:07 +0100
parents e2e2cc5d0856
children
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1 " Vim syntax file
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2 " Language: PROLOG
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3 " Maintainer: Anton Kochkov <anton.kochkov@gmail.com>
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4 " Last Change: 2021 Jan 05
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5
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6 " There are two sets of highlighting in here:
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7 " If the "prolog_highlighting_clean" variable exists, it is rather sparse.
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8 " Otherwise you get more highlighting.
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9 "
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10 " You can also set the "prolog_highlighting_no_keyword" variable. If set,
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11 " keywords will not be highlighted.
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12
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13 " quit when a syntax file was already loaded
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14 if exists("b:current_syntax")
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15 finish
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16 endif
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17
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18 " Prolog is case sensitive.
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19 syn case match
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20
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21 " Very simple highlighting for comments, clause heads and
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22 " character codes. It respects prolog strings and atoms.
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23
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24 syn region prologCComment start=+/\*+ end=+\*/+ contains=@Spell
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25 syn match prologComment +%.*+ contains=@Spell
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26
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27 if !exists("prolog_highlighting_no_keyword")
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28 syn keyword prologKeyword module meta_predicate multifile dynamic
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29 endif
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30 syn match prologCharCode +0'\\\=.+
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31 syn region prologString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
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32 syn region prologAtom start=+'+ skip=+\\\\\|\\'+ end=+'+
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33 syn region prologClause matchgroup=prologClauseHead start=+^\s*[a-z]\w*+ matchgroup=Normal end=+\.\s\|\.$+ contains=ALLBUT,prologClause contains=@NoSpell
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34
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35 if !exists("prolog_highlighting_clean")
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36
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37 " some keywords
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38 " some common predicates are also highlighted as keywords
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39 " is there a better solution?
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40 if !exists("prolog_highlighting_no_keyword")
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41 syn keyword prologKeyword abolish current_output peek_code
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42 syn keyword prologKeyword append current_predicate put_byte
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43 syn keyword prologKeyword arg current_prolog_flag put_char
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44 syn keyword prologKeyword asserta fail put_code
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45 syn keyword prologKeyword assertz findall read
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46 syn keyword prologKeyword at_end_of_stream float read_term
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47 syn keyword prologKeyword atom flush_output repeat
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48 syn keyword prologKeyword atom_chars functor retract
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49 syn keyword prologKeyword atom_codes get_byte set_input
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50 syn keyword prologKeyword atom_concat get_char set_output
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51 syn keyword prologKeyword atom_length get_code set_prolog_flag
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52 syn keyword prologKeyword atomic halt set_stream_position
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53 syn keyword prologKeyword bagof integer setof
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54 syn keyword prologKeyword call is stream_property
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55 syn keyword prologKeyword catch nl sub_atom
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56 syn keyword prologKeyword char_code nonvar throw
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57 syn keyword prologKeyword char_conversion number true
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58 syn keyword prologKeyword clause number_chars unify_with_occurs_check
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59 syn keyword prologKeyword close number_codes var
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60 syn keyword prologKeyword compound once write
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61 syn keyword prologKeyword copy_term op write_canonical
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62 syn keyword prologKeyword current_char_conversion open write_term
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63 syn keyword prologKeyword current_input peek_byte writeq
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64 syn keyword prologKeyword current_op peek_char
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65 endif
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66
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67 syn match prologOperator "=\\=\|=:=\|\\==\|=<\|==\|>=\|\\=\|\\+\|=\.\.\|<\|>\|="
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68 syn match prologAsIs "===\|\\===\|<=\|=>"
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69
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70 syn match prologNumber "\<\d*\>'\@!"
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71 syn match prologNumber "\<0[xX]\x*\>'\@!"
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72 syn match prologCommentError "\*/"
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73 syn match prologSpecialCharacter ";"
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74 syn match prologSpecialCharacter "!"
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75 syn match prologSpecialCharacter ":-"
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76 syn match prologSpecialCharacter "-->"
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77 syn match prologQuestion "?-.*\." contains=prologNumber
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78
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79
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80 endif
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81
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82 syn sync maxlines=50
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83
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84
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85 " Define the default highlighting.
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86 " Only when an item doesn't have highlighting yet
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87
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88 " The default highlighting.
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89 hi def link prologComment Comment
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90 hi def link prologCComment Comment
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91 hi def link prologCharCode Special
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92
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93 if exists ("prolog_highlighting_clean")
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94
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95 hi def link prologKeyword Statement
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96 hi def link prologClauseHead Statement
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97 hi def link prologClause Normal
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98
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99 else
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100
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101 hi def link prologKeyword Keyword
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102 hi def link prologClauseHead Constant
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103 hi def link prologClause Normal
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104 hi def link prologQuestion PreProc
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105 hi def link prologSpecialCharacter Special
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106 hi def link prologNumber Number
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107 hi def link prologAsIs Normal
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108 hi def link prologCommentError Error
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109 hi def link prologAtom String
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110 hi def link prologString String
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111 hi def link prologOperator Operator
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112
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113 endif
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114
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115
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116 let b:current_syntax = "prolog"
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117
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118 " vim: ts=8