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-- mod-version:3
local syntax = require "core.syntax"
local patterns = {}
local symbols = {
["nil"] = "literal",
["true"] = "literal",
["false"] = "literal",
}
local number_patterns = {
"0[bB][01][01_]*",
"0o[0-7][0-7_]*",
"0[xX]%x[%x_]*",
"%d[%d_]*%.%d[%d_]*[eE][-+]?%d[%d_]*",
"%d[%d_]*%.%d[%d_]*",
"%d[%d_]*",
}
local type_suffix_patterns = {}
for _, size in ipairs({"", "8", "16", "32", "64"}) do
table.insert(type_suffix_patterns, "'?[fuiFUI]"..size)
end
for _, pattern in ipairs(number_patterns) do
for _, suffix in ipairs(type_suffix_patterns) do
table.insert(patterns, { pattern = pattern..suffix, type = "literal" })
end
table.insert(patterns, { pattern = pattern, type = "literal" })
end
local keywords = {
"addr", "and", "as", "asm",
"bind", "block", "break",
"case", "cast", "concept", "const", "continue", "converter",
"defer", "discard", "distinct", "div", "do",
"elif", "else", "end", "enum", "except", "export",
"finally", "for", "from", "func",
"if", "import", "in", "include", "interface", "is", "isnot", "iterator",
"let",
"macro", "method", "mixin", "mod",
"not", "notin",
"object", "of", "or", "out",
"proc", "ptr",
"raise", "ref", "return",
"shl", "shr", "static",
"template", "try", "tuple", "type",
"using",
"var",
"when", "while",
"xor",
"yield",
}
for _, keyword in ipairs(keywords) do
symbols[keyword] = "keyword"
end
local standard_types = {
"bool", "byte",
"int", "int8", "int16", "int32", "int64",
"uint", "uint8", "uint16", "uint32", "uint64",
"float", "float32", "float64",
"char", "string", "cstring",
"pointer",
"typedesc",
"void", "auto", "any",
"untyped", "typed",
"clong", "culong", "cchar", "cschar", "cshort", "cint", "csize", "csize_t",
"clonglong", "cfloat", "cdouble", "clongdouble", "cuchar", "cushort",
"cuint", "culonglong", "cstringArray",
}
for _, type in ipairs(standard_types) do
symbols[type] = "keyword2"
end
local standard_generic_types = {
"range",
"array", "open[aA]rray", "varargs", "seq", "set",
"sink", "lent", "owned",
}
for _, type in ipairs(standard_generic_types) do
table.insert(patterns, { pattern = type.."%f[%[]", type = "keyword2" })
table.insert(patterns, { pattern = type.." +%f[%w]", type = "keyword2" })
end
local function string_pattern(start, stop, syntax)
return {
pattern = { start, stop, '\\' },
type = "string",
syntax = syntax and {
patterns = syntax,
symbols = {},
} or nil
}
end
local interpolation_syntax = {
{ pattern = { '{{', '}}' }, type = "string" },
{ pattern = { '{', '}', '\\' }, type = "keyword2", syntax = ".nim" },
{ pattern = "[%S][%w]*", type = "string" },
}
local user_patterns = {
-- comments
{ pattern = { "##?%[", "]##?" }, type = "comment" },
{ pattern = "##?.-\n", type = "comment" },
-- strings and chars
{ pattern = { "'", "'", '\\' }, type = "literal" },
string_pattern('"""', '"""%f[^"]'),
string_pattern('"' , '"' ),
string_pattern('\\"', '\\"' ), -- For highlighting strings inside iterpolated blocks
-- string interpolation
string_pattern('%&"""' , '"""%f[^"]', interpolation_syntax),
string_pattern('fmt"""', '"""%f[^"]', interpolation_syntax),
string_pattern('%&"' , '"' , interpolation_syntax),
string_pattern('fmt"' , '"' , interpolation_syntax),
-- function calls
{ pattern = "[a-zA-Z][a-zA-Z0-9_]*%f[(]", type = "function" },
-- identifiers
{ pattern = "[A-Z][a-zA-Z0-9_]*", type = "keyword2" },
{ pattern = "[a-zA-Z][a-zA-Z0-9_]*", type = "symbol" },
-- operators
{ pattern = "%.%f[^.]", type = "normal" },
{ pattern = ":%f[ ]", type = "normal" },
{ pattern = "[=+%-*/<>@$~&%%|!?%^&.:\\]+", type = "operator" },
}
for _, pattern in ipairs(user_patterns) do
table.insert(patterns, pattern)
end
local nim = {
name = "Nim",
files = { "%.nim$", "%.nims$", "%.nimble$" },
comment = "#",
patterns = patterns,
symbols = symbols,
}
syntax.add(nim)
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