Module: Enolib::Grammar

Defined in:

lib/enolib/grammar_regexp.rb

Constant Summary

OPTIONAL =

/([^\n]+?)?/.source

REQUIRED =

/(\S[^\n]*?)/.source

EMPTY =

/()/.source

EMPTY_LINE_INDEX =

1

DIRECT_LINE_CONTINUATION =

| value

/(\|)[^\S\n]*#{OPTIONAL}/.source

DIRECT_LINE_CONTINUATION_OPERATOR_INDEX =

2

DIRECT_LINE_CONTINUATION_VALUE_INDEX =

3

SPACED_LINE_CONTINUATION =

\ value

/(\\)[^\S\n]*#{OPTIONAL}/.source

SPACED_LINE_CONTINUATION_OPERATOR_INDEX =

4

SPACED_LINE_CONTINUATION_VALUE_INDEX =

5

CONTINUATION =

/#{DIRECT_LINE_CONTINUATION}|#{SPACED_LINE_CONTINUATION}/.source

COMMENT =

> Comment

/(>)[^\S\n]*#{OPTIONAL}/.source

COMMENT_OPERATOR_INDEX =

6

COMMENT_VALUE_INDEX =

7

LIST_ITEM =

• value

/(-)(?!-)[^\S\n]*#{OPTIONAL}/.source

LIST_ITEM_OPERATOR_INDEX =

8

LIST_ITEM_VALUE_INDEX =

9

MULTILINE_FIELD =

– key

/(-{2,})(?!-)[^\S\n]*#{REQUIRED}/.source

MULTILINE_FIELD_OPERATOR_INDEX =

10

MULTILINE_FIELD_KEY_INDEX =

11

SECTION_OPERATOR =

#

/(#+)(?!#)/.source

SECTION_OPERATOR_INDEX =

12

SECTION_KEY_UNESCAPED =

# key

/([^\s`<][^<\n]*?)/.source

SECTION_KEY_UNESCAPED_INDEX =

13

SECTION_KEY_ESCAPE_BEGIN_OPERATOR_INDEX =

# ‘key`

14

SECTION_KEY_ESCAPED =

TODO: Should this exclude the backreference inside the quotes? (as in ((?:(?!1).)+) ) here and elsewhere (probably not because it’s not greedy.?!

/(`+)(?!`)[^\S\n]*(\S[^\n]*?)[^\S\n]*(#{"\\#{SECTION_KEY_ESCAPE_BEGIN_OPERATOR_INDEX}"})/.source

SECTION_KEY_ESCAPED_INDEX =

15

SECTION_KEY_ESCAPE_END_OPERATOR_INDEX =

16

SECTION_KEY =

# key < template # ‘key` < template

/(?:#{SECTION_KEY_UNESCAPED}|#{SECTION_KEY_ESCAPED})/.source

SECTION_TEMPLATE =

/(?:(<(?!<)|<<)[^\S\n]*#{REQUIRED})?/.source

SECTION =

/#{SECTION_OPERATOR}\s*#{SECTION_KEY}[^\S\n]*#{SECTION_TEMPLATE}/.source

SECTION_COPY_OPERATOR_INDEX =

17

SECTION_TEMPLATE_INDEX =

18

EARLY_DETERMINED =

/#{CONTINUATION}|#{COMMENT}|#{LIST_ITEM}|#{MULTILINE_FIELD}|#{SECTION}/.source

KEY_UNESCAPED =

key

/([^\s>#\-`\\|:=<][^\n:=<]*?)/.source

KEY_UNESCAPED_INDEX =

19

KEY_ESCAPE_BEGIN_OPERATOR_INDEX =

‘key`

20

KEY_ESCAPED =

/(`+)(?!`)[^\S\n]*(\S[^\n]*?)[^\S\n]*(#{"\\#{KEY_ESCAPE_BEGIN_OPERATOR_INDEX}"})/.source

KEY_ESCAPED_INDEX =

21

KEY_ESCAPE_END_OPERATOR_INDEX =

22

KEY =

/(?:#{KEY_UNESCAPED}|#{KEY_ESCAPED})/.source

ELEMENT_OR_FIELD =

: : value

/(:)[^\S\n]*#{OPTIONAL}/.source

ELEMENT_OPERATOR_INDEX =

23

FIELD_VALUE_INDEX =

24

FIELDSET_ENTRY =

value

/(=)[^\S\n]*#{OPTIONAL}/.source

FIELDSET_ENTRY_OPERATOR_INDEX =

25

FIELDSET_ENTRY_VALUE_INDEX =

26

COPY =

< template << template

/(<(?!<)|<<)\s*#{REQUIRED}/.source

COPY_OPERATOR_INDEX =

27

TEMPLATE_INDEX =

28

LATE_DETERMINED =

/#{KEY}\s*(?:#{ELEMENT_OR_FIELD}|#{FIELDSET_ENTRY}|#{COPY})/.source

NOT_EMPTY =

/(?:#{EARLY_DETERMINED}|#{LATE_DETERMINED})/.source

REGEX =

/[^\S\n]*(?:#{EMPTY}|#{NOT_EMPTY})[^\S\n]*(?=\n|$)/.freeze