mirror of
https://github.com/cheat/cheat.git
synced 2024-11-16 17:08:29 +01:00
101 lines
4.4 KiB
Go
101 lines
4.4 KiB
Go
package m
|
|
|
|
import (
|
|
. "github.com/alecthomas/chroma" // nolint
|
|
"github.com/alecthomas/chroma/lexers/internal"
|
|
)
|
|
|
|
// Metal lexer.
|
|
var Metal = internal.Register(MustNewLazyLexer(
|
|
&Config{
|
|
Name: "Metal",
|
|
Aliases: []string{"metal"},
|
|
Filenames: []string{"*.metal"},
|
|
MimeTypes: []string{"text/x-metal"},
|
|
EnsureNL: true,
|
|
},
|
|
metalRules,
|
|
))
|
|
|
|
func metalRules() Rules {
|
|
return Rules{
|
|
"statements": {
|
|
{Words(``, `\b`, `namespace`, `operator`, `template`, `this`, `using`, `constexpr`), Keyword, nil},
|
|
{`(enum)\b(\s+)(class)\b(\s*)`, ByGroups(Keyword, Text, Keyword, Text), Push("classname")},
|
|
{`(class|struct|enum|union)\b(\s*)`, ByGroups(Keyword, Text), Push("classname")},
|
|
{`\[\[.+\]\]`, NameAttribute, nil},
|
|
{`(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*`, LiteralNumberFloat, nil},
|
|
{`(\d+\.\d*|\.\d+|\d+[fF])[fF]?`, LiteralNumberFloat, nil},
|
|
{`0[xX]([0-9A-Fa-f]('?[0-9A-Fa-f]+)*)[LlUu]*`, LiteralNumberHex, nil},
|
|
{`0('?[0-7]+)+[LlUu]*`, LiteralNumberOct, nil},
|
|
{`0[Bb][01]('?[01]+)*[LlUu]*`, LiteralNumberBin, nil},
|
|
{`[0-9]('?[0-9]+)*[LlUu]*`, LiteralNumberInteger, nil},
|
|
{`\*/`, Error, nil},
|
|
{`[~!%^&*+=|?:<>/-]`, Operator, nil},
|
|
{`[()\[\],.]`, Punctuation, nil},
|
|
{Words(``, `\b`, `break`, `case`, `const`, `continue`, `do`, `else`, `enum`, `extern`, `for`, `if`, `return`, `sizeof`, `static`, `struct`, `switch`, `typedef`, `union`, `while`), Keyword, nil},
|
|
{`(bool|float|half|long|ptrdiff_t|size_t|unsigned|u?char|u?int((8|16|32|64)_t)?|u?short)\b`, KeywordType, nil},
|
|
{`(bool|float|half|u?(char|int|long|short))(2|3|4)\b`, KeywordType, nil},
|
|
{`packed_(float|half|long|u?(char|int|short))(2|3|4)\b`, KeywordType, nil},
|
|
{`(float|half)(2|3|4)x(2|3|4)\b`, KeywordType, nil},
|
|
{`atomic_u?int\b`, KeywordType, nil},
|
|
{`(rg?(8|16)(u|s)norm|rgba(8|16)(u|s)norm|srgba8unorm|rgb10a2|rg11b10f|rgb9e5)\b`, KeywordType, nil},
|
|
{`(array|depth(2d|cube)(_array)?|depth2d_ms(_array)?|sampler|texture_buffer|texture(1|2)d(_array)?|texture2d_ms(_array)?|texture3d|texturecube(_array)?|uniform|visible_function_table)\b`, KeywordType, nil},
|
|
{`(true|false|NULL)\b`, NameBuiltin, nil},
|
|
{Words(``, `\b`, `device`, `constant`, `ray_data`, `thread`, `threadgroup`, `threadgroup_imageblock`), Keyword, nil},
|
|
{`([a-zA-Z_]\w*)(\s*)(:)(?!:)`, ByGroups(NameLabel, Text, Punctuation), nil},
|
|
{`[a-zA-Z_]\w*`, Name, nil},
|
|
},
|
|
"root": {
|
|
Include("whitespace"),
|
|
{`(fragment|kernel|vertex)?((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;{]*)(\{)`, ByGroups(Keyword, UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), Push("function")},
|
|
{`(fragment|kernel|vertex)?((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;]*)(;)`, ByGroups(Keyword, UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), nil},
|
|
Default(Push("statement")),
|
|
},
|
|
"classname": {
|
|
{`(\[\[.+\]\])(\s*)`, ByGroups(NameAttribute, Text), nil},
|
|
{`[a-zA-Z_]\w*`, NameClass, Pop(1)},
|
|
{`\s*(?=[>{])`, Text, Pop(1)},
|
|
},
|
|
"whitespace": {
|
|
{`^#if\s+0`, CommentPreproc, Push("if0")},
|
|
{`^#`, CommentPreproc, Push("macro")},
|
|
{`^(\s*(?:/[*].*?[*]/\s*)?)(#if\s+0)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("if0")},
|
|
{`^(\s*(?:/[*].*?[*]/\s*)?)(#)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("macro")},
|
|
{`\n`, Text, nil},
|
|
{`\s+`, Text, nil},
|
|
{`\\\n`, Text, nil},
|
|
{`//(\n|[\w\W]*?[^\\]\n)`, CommentSingle, nil},
|
|
{`/(\\\n)?[*][\w\W]*?[*](\\\n)?/`, CommentMultiline, nil},
|
|
{`/(\\\n)?[*][\w\W]*`, CommentMultiline, nil},
|
|
},
|
|
"statement": {
|
|
Include("whitespace"),
|
|
Include("statements"),
|
|
{`[{]`, Punctuation, Push("root")},
|
|
{`[;}]`, Punctuation, Pop(1)},
|
|
},
|
|
"function": {
|
|
Include("whitespace"),
|
|
Include("statements"),
|
|
{`;`, Punctuation, nil},
|
|
{`\{`, Punctuation, Push()},
|
|
{`\}`, Punctuation, Pop(1)},
|
|
},
|
|
"macro": {
|
|
{`(include)(\s*(?:/[*].*?[*]/\s*)?)([^\n]+)`, ByGroups(CommentPreproc, Text, CommentPreprocFile), nil},
|
|
{`[^/\n]+`, CommentPreproc, nil},
|
|
{`/[*](.|\n)*?[*]/`, CommentMultiline, nil},
|
|
{`//.*?\n`, CommentSingle, Pop(1)},
|
|
{`/`, CommentPreproc, nil},
|
|
{`(?<=\\)\n`, CommentPreproc, nil},
|
|
{`\n`, CommentPreproc, Pop(1)},
|
|
},
|
|
"if0": {
|
|
{`^\s*#if.*?(?<!\\)\n`, CommentPreproc, Push()},
|
|
{`^\s*#el(?:se|if).*\n`, CommentPreproc, Pop(1)},
|
|
{`^\s*#endif.*?(?<!\\)\n`, CommentPreproc, Pop(1)},
|
|
{`.*?\n`, Comment, nil},
|
|
},
|
|
}
|
|
}
|