1package n
2
3import (
4 . "github.com/alecthomas/chroma" // nolint
5 "github.com/alecthomas/chroma/lexers/internal"
6)
7
8// Nim lexer.
9var Nim = internal.Register(MustNewLexer(
10 &Config{
11 Name: "Nim",
12 Aliases: []string{"nim", "nimrod"},
13 Filenames: []string{"*.nim", "*.nimrod"},
14 MimeTypes: []string{"text/x-nim"},
15 CaseInsensitive: true,
16 },
17 Rules{
18 "root": {
19 {`#\[[\s\S]*?\]#`, CommentMultiline, nil},
20 {`##.*$`, LiteralStringDoc, nil},
21 {`#.*$`, Comment, nil},
22 {`[*=><+\-/@$~&%!?|\\\[\]]`, Operator, nil},
23 {"\\.\\.|\\.|,|\\[\\.|\\.\\]|\\{\\.|\\.\\}|\\(\\.|\\.\\)|\\{|\\}|\\(|\\)|:|\\^|`|;", Punctuation, nil},
24 {`(?:[\w]+)"`, LiteralString, Push("rdqs")},
25 {`"""`, LiteralString, Push("tdqs")},
26 {`"`, LiteralString, Push("dqs")},
27 {`'`, LiteralStringChar, Push("chars")},
28 {`(a_?n_?d_?|o_?r_?|n_?o_?t_?|x_?o_?r_?|s_?h_?l_?|s_?h_?r_?|d_?i_?v_?|m_?o_?d_?|i_?n_?|n_?o_?t_?i_?n_?|i_?s_?|i_?s_?n_?o_?t_?)\b`, OperatorWord, nil},
29 {`(p_?r_?o_?c_?\s)(?![(\[\]])`, Keyword, Push("funcname")},
30 {`(a_?d_?d_?r_?|a_?n_?d_?|a_?s_?|a_?s_?m_?|a_?t_?o_?m_?i_?c_?|b_?i_?n_?d_?|b_?l_?o_?c_?k_?|b_?r_?e_?a_?k_?|c_?a_?s_?e_?|c_?a_?s_?t_?|c_?o_?n_?c_?e_?p_?t_?|c_?o_?n_?s_?t_?|c_?o_?n_?t_?i_?n_?u_?e_?|c_?o_?n_?v_?e_?r_?t_?e_?r_?|d_?e_?f_?e_?r_?|d_?i_?s_?c_?a_?r_?d_?|d_?i_?s_?t_?i_?n_?c_?t_?|d_?i_?v_?|d_?o_?|e_?l_?i_?f_?|e_?l_?s_?e_?|e_?n_?d_?|e_?n_?u_?m_?|e_?x_?c_?e_?p_?t_?|e_?x_?p_?o_?r_?t_?|f_?i_?n_?a_?l_?l_?y_?|f_?o_?r_?|f_?u_?n_?c_?|i_?f_?|i_?n_?|y_?i_?e_?l_?d_?|i_?n_?t_?e_?r_?f_?a_?c_?e_?|i_?s_?|i_?s_?n_?o_?t_?|i_?t_?e_?r_?a_?t_?o_?r_?|l_?e_?t_?|m_?a_?c_?r_?o_?|m_?e_?t_?h_?o_?d_?|m_?i_?x_?i_?n_?|m_?o_?d_?|n_?o_?t_?|n_?o_?t_?i_?n_?|o_?b_?j_?e_?c_?t_?|o_?f_?|o_?r_?|o_?u_?t_?|p_?r_?o_?c_?|p_?t_?r_?|r_?a_?i_?s_?e_?|r_?e_?f_?|r_?e_?t_?u_?r_?n_?|s_?h_?a_?r_?e_?d_?|s_?h_?l_?|s_?h_?r_?|s_?t_?a_?t_?i_?c_?|t_?e_?m_?p_?l_?a_?t_?e_?|t_?r_?y_?|t_?u_?p_?l_?e_?|t_?y_?p_?e_?|w_?h_?e_?n_?|w_?h_?i_?l_?e_?|w_?i_?t_?h_?|w_?i_?t_?h_?o_?u_?t_?|x_?o_?r_?)\b`, Keyword, nil},
31 {`(f_?r_?o_?m_?|i_?m_?p_?o_?r_?t_?|i_?n_?c_?l_?u_?d_?e_?)\b`, KeywordNamespace, nil},
32 {`(v_?a_?r)\b`, KeywordDeclaration, nil},
33 {`(i_?n_?t_?|i_?n_?t_?8_?|i_?n_?t_?1_?6_?|i_?n_?t_?3_?2_?|i_?n_?t_?6_?4_?|f_?l_?o_?a_?t_?|f_?l_?o_?a_?t_?3_?2_?|f_?l_?o_?a_?t_?6_?4_?|b_?o_?o_?l_?|c_?h_?a_?r_?|r_?a_?n_?g_?e_?|a_?r_?r_?a_?y_?|s_?e_?q_?|s_?e_?t_?|s_?t_?r_?i_?n_?g_?)\b`, KeywordType, nil},
34 {`(n_?i_?l_?|t_?r_?u_?e_?|f_?a_?l_?s_?e_?)\b`, KeywordPseudo, nil},
35 {`\b_\b`, Name, nil}, // Standalone _ used as discardable variable identifier
36 {`\b((?![_\d])\w)(((?!_)\w)|(_(?!_)\w))*`, Name, nil},
37 {`[0-9][0-9_]*(?=([e.]|\'f(32|64)))`, LiteralNumberFloat, Push("float-suffix", "float-number")},
38 {`0x[a-f0-9][a-f0-9_]*`, LiteralNumberHex, Push("int-suffix")},
39 {`0b[01][01_]*`, LiteralNumberBin, Push("int-suffix")},
40 {`0o[0-7][0-7_]*`, LiteralNumberOct, Push("int-suffix")},
41 {`[0-9][0-9_]*`, LiteralNumberInteger, Push("int-suffix")},
42 {`\s+`, Text, nil},
43 {`.+$`, Error, nil},
44 },
45 "chars": {
46 {`\\([\\abcefnrtvl"\']|x[a-f0-9]{2}|[0-9]{1,3})`, LiteralStringEscape, nil},
47 {`'`, LiteralStringChar, Pop(1)},
48 {`.`, LiteralStringChar, nil},
49 },
50 "strings": {
51 {`(?<!\$)\$(\d+|#|\w+)+`, LiteralStringInterpol, nil},
52 {`[^\\\'"$\n]+`, LiteralString, nil},
53 {`[\'"\\]`, LiteralString, nil},
54 {`\$`, LiteralString, nil},
55 },
56 "dqs": {
57 {`\\([\\abcefnrtvl"\']|\n|x[a-f0-9]{2}|[0-9]{1,3})`, LiteralStringEscape, nil},
58 {`"`, LiteralString, Pop(1)},
59 Include("strings"),
60 },
61 "rdqs": {
62 {`"(?!")`, LiteralString, Pop(1)},
63 {`""`, LiteralStringEscape, nil},
64 Include("strings"),
65 },
66 "tdqs": {
67 {`"""(?!")`, LiteralString, Pop(1)},
68 Include("strings"),
69 Include("nl"),
70 },
71 "funcname": {
72 {`((?![\d_])\w)(((?!_)\w)|(_(?!_)\w))*`, NameFunction, Pop(1)},
73 {"`.+`", NameFunction, Pop(1)},
74 },
75 "nl": {
76 {`\n`, LiteralString, nil},
77 },
78 "float-number": {
79 {`\.(?!\.)[0-9_]*`, LiteralNumberFloat, nil},
80 {`e[+-]?[0-9][0-9_]*`, LiteralNumberFloat, nil},
81 Default(Pop(1)),
82 },
83 "float-suffix": {
84 {`\'f(32|64)`, LiteralNumberFloat, nil},
85 Default(Pop(1)),
86 },
87 "int-suffix": {
88 {`\'i(32|64)`, LiteralNumberIntegerLong, nil},
89 {`\'i(8|16)`, LiteralNumberInteger, nil},
90 Default(Pop(1)),
91 },
92 },
93))