1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
-- Nomsu version 2
file (File):
%nl*
{:curr_indent: ' '* :}
(chunk (nl_nodent chunk_delimeter nl_nodent chunk)*)?
%nl*
(!! .+ -> "Parse error" !!)?
nodent: =curr_indent !(" ")
indent: =curr_indent " "
blank_lines: %nl (%ws* %nl)*
eol: (!. / &%nl)
comment (Comment):
!inline_comment
"#" {~ [^%nl]* (blank_lines (indent -> '') [^%nl]*)* ~}
inline_comment (Comment):
"#(" {~ (inline_comment / [^%nl])* ~} ")#"
nl_nodent: blank_lines nodent
nl_indent: blank_lines {:curr_indent: indent :}
chunk: block / ((comment nl_nodent)* (action / expression)? (nl_nodent comment)*)
chunk_delimeter: ("~")^+3
inline_block (Block):
inline_statement (%ws* ";" %ws* inline_statement)+ (%ws* inline_comment)*
block (Block):
block_line (nl_nodent block_line)+ (nl_nodent comment)*
block_line:
statement %ws* (!! [^%nl]+ -> "Unexpected character while parsing block line" !!)?
statement: (comment nl_nodent)* (action / expression) %ws* (!! [^%nl]+ -> "Unexpected character while parsing line" !!)?
inline_statement: (inline_comment %ws*)* (inline_action / inline_expression)
noindex_inline_expression:
number / variable / inline_text / inline_list / inline_dict / inline_nomsu
/ ( "("
%ws* (inline_block / inline_action / inline_expression) %ws*
(%ws* ',' %ws* (inline_block / inline_action / inline_expression) %ws*)*
(")"
/ (!! %ws* eol -> 'Line ended without finding a closing )-parenthesis' !!)
/ (!! [^%nl]+ -> 'Unexpected character while parsing subexpression' !!)
)
)
inline_expression: index_chain / noindex_inline_expression
indented_expression:
indented_text / indented_nomsu / indented_list / indented_dict / {|
("(..)" / ":")? nl_indent (comment nl_nodent)*
(block / action / expression)
(!! [^%nl]+ -> "Unexpected character while parsing indented expression" !!)?
{:is_halfblock: ''->'yep' :}
|}
expression:
inline_expression
/ (":" %ws*
(!! eol -> "Missing expression after the ':'" !!)?
(inline_block / inline_action / inline_expression) %ws* eol)
/ indented_expression
inline_nomsu (EscapedNomsu): "\" inline_expression
indented_nomsu (EscapedNomsu):
"\" (
noindex_inline_expression
/ (":" %ws*
(!! eol -> "Missing expression after the '\:'" !!)?
(inline_block / inline_action / inline_expression) %ws* eol)
/ indented_expression)
index_chain (IndexChain):
noindex_inline_expression ("." (text_word / noindex_inline_expression))+
-- Actions need either at least 1 word, or at least 2 tokens
inline_action (Action):
!chunk_delimeter
(inline_comment %ws*)*
( (inline_expression ((%ws* inline_comment)* %ws* (inline_expression / word))+)
/ (word ((%ws* inline_comment)* %ws* (inline_expression / word))*))
((%ws* inline_comment)* %ws* ":" %ws* (inline_block / inline_action / inline_expression
/ (!! '' -> "Missing expression after the ':'" !!)))?
action (Action):
!chunk_delimeter
(inline_comment %ws*)*
( (expression (((nl_nodent comment)* nl_nodent "..")? %ws* (inline_comment %ws*)* (expression / word))+)
/ (word (((nl_nodent comment)* nl_nodent "..")? %ws* (inline_comment %ws*)* (expression / word))*))
word: !number { %operator_char+ / %ident_char+ }
text_word (Text): word
inline_text (Text):
!('".."' %ws* eol)
'"'
({~ (('\"' -> '"') / ('\\' -> '\') / %escaped_char / [^%nl\"])+ ~}
/ inline_text_interpolation)*
('"'
/ (!! eol -> 'Line ended before finding a closing double quotation mark' !!)
/ (!! [^%nl]+ -> 'Unexpected character while parsing Text' !!))
inline_text_interpolation:
"\" (
variable / inline_list / inline_dict / inline_text
/ ("("
%ws* (inline_block / inline_action / inline_expression) %ws*
(%ws* ',' %ws* (inline_block / inline_action / inline_expression) %ws*)*
(")"
/ (!! %ws* eol -> 'Line ended without finding a closing )-parenthesis' !!)
/ (!! [^%nl]+ -> 'Unexpected character while parsing Text interpolation' !!)))
)
indented_text (Text):
'".."' %ws* %nl {:curr_indent: indent :}
(indented_plain_text / text_interpolation / {~ blank_lines (=curr_indent -> "") ~})*
(!! [^%nl]+ -> "Unexpected character while parsing Text" !!)?
indented_plain_text (Text):
{~ (("\\" -> "\") / (("\" (blank_lines =curr_indent comment)* blank_lines =curr_indent "..") -> "") / (!text_interpolation "\") / [^%nl\]+)+
(blank_lines (=curr_indent -> ""))* ~}
text_interpolation:
inline_text_interpolation / ("\" indented_expression blank_lines =curr_indent "..")
number (Number): (("-"? (([0-9]+ "." [0-9]+) / ("." [0-9]+) / ([0-9]+)))-> tonumber)
-- Variables can be nameless (i.e. just %) and can't contain operators like apostrophe
-- which is a hack to allow %'s to parse as "%" and "' s" separately
variable (Var): "%" {(%ident_char+ ((!"'" %operator_char+) / %ident_char+)*)?}
inline_list (List):
!('[..]')
"[" %ws*
(inline_list_item (%ws* ',' %ws* inline_list_item)* (%ws* ',')?)? %ws*
("]" / (","? (
(!! %ws* eol -> "Line ended before finding a closing ]-bracket" !!)
/(!! [^%nl]+ -> "Unexpected character while parsing List" !!)?
)))
indented_list (List):
"[..]" nl_indent (comment nl_nodent)*
list_line (nl_nodent list_line)*
(","? (!! [^%nl]+ -> "Unexpected character while parsing List" !!))?
list_line:
(inline_list_item %ws* "," %ws*)+ %ws* eol
/ (inline_list_item %ws* "," %ws*)* (action / expression)
inline_list_item: inline_block / inline_action / inline_expression
inline_dict (Dict):
!('{..}')
"{" %ws*
(inline_dict_entry (%ws* ',' %ws* inline_dict_entry)*)? %ws*
("}" / (","? (
(!! %ws* eol -> "Line ended before finding a closing }-brace" !!)
/ (!! [^%nl]* -> "Unexpected character while parsing Dictionary" !!)
)))
indented_dict (Dict):
"{..}" nl_indent (comment nl_nodent)*
dict_line ((nl_nodent comment)* nl_nodent dict_line)* (nl_nodent comment)*
(","? (!! [^%nl]+ -> "Unexpected character while parsing Dictionary" !!))?
dict_line:
(inline_dict_entry %ws* "," %ws*)+ %ws* eol
/ (inline_dict_entry %ws* "," %ws*)* dict_entry
dict_entry(DictEntry):
dict_key (%ws* ":" %ws* (action / expression))?
inline_dict_entry(DictEntry):
dict_key (%ws* ":" %ws* (inline_block / inline_action / inline_expression)?)?
dict_key:
text_word / inline_expression
|
