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- package b
-
- import (
- "regexp"
-
- . "github.com/alecthomas/chroma" // nolint
- "github.com/alecthomas/chroma/lexers/internal"
- )
-
- var bashAnalyserRe = regexp.MustCompile(`(?m)^#!.*/bin/(?:env |)(?:bash|zsh|sh|ksh)`)
-
- // Bash lexer.
- var Bash = internal.Register(MustNewLexer(
- &Config{
- Name: "Bash",
- Aliases: []string{"bash", "sh", "ksh", "zsh", "shell"},
- Filenames: []string{"*.sh", "*.ksh", "*.bash", "*.ebuild", "*.eclass", "*.exheres-0", "*.exlib", "*.zsh", "*.zshrc", ".bashrc", "bashrc", ".bash_*", "bash_*", "zshrc", ".zshrc", "PKGBUILD"},
- MimeTypes: []string{"application/x-sh", "application/x-shellscript"},
- },
- Rules{
- "root": {
- Include("basic"),
- {"`", LiteralStringBacktick, Push("backticks")},
- Include("data"),
- Include("interp"),
- },
- "interp": {
- {`\$\(\(`, Keyword, Push("math")},
- {`\$\(`, Keyword, Push("paren")},
- {`\$\{#?`, LiteralStringInterpol, Push("curly")},
- {`\$[a-zA-Z_]\w*`, NameVariable, nil},
- {`\$(?:\d+|[#$?!_*@-])`, NameVariable, nil},
- {`\$`, Text, nil},
- },
- "basic": {
- {`\b(if|fi|else|while|do|done|for|then|return|function|case|select|continue|until|esac|elif)(\s*)\b`, ByGroups(Keyword, Text), nil},
- {"\\b(alias|bg|bind|break|builtin|caller|cd|command|compgen|complete|declare|dirs|disown|echo|enable|eval|exec|exit|export|false|fc|fg|getopts|hash|help|history|jobs|kill|let|local|logout|popd|printf|pushd|pwd|read|readonly|set|shift|shopt|source|suspend|test|time|times|trap|true|type|typeset|ulimit|umask|unalias|unset|wait)(?=[\\s)`])", NameBuiltin, nil},
- {`\A#!.+\n`, CommentPreproc, nil},
- {`#.*\S`, CommentSingle, nil},
- {`\\[\w\W]`, LiteralStringEscape, nil},
- {`(\b\w+)(\s*)(\+?=)`, ByGroups(NameVariable, Text, Operator), nil},
- {`[\[\]{}()=]`, Operator, nil},
- {`<<<`, Operator, nil},
- {`<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2`, LiteralString, nil},
- {`&&|\|\|`, Operator, nil},
- },
- "data": {
- {`(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\$])*"`, LiteralStringDouble, nil},
- {`"`, LiteralStringDouble, Push("string")},
- {`(?s)\$'(\\\\|\\[0-7]+|\\.|[^'\\])*'`, LiteralStringSingle, nil},
- {`(?s)'.*?'`, LiteralStringSingle, nil},
- {`;`, Punctuation, nil},
- {`&`, Punctuation, nil},
- {`\|`, Punctuation, nil},
- {`\s+`, Text, nil},
- {`\d+(?= |$)`, LiteralNumber, nil},
- {"[^=\\s\\[\\]{}()$\"\\'`\\\\<&|;]+", Text, nil},
- {`<`, Text, nil},
- },
- "string": {
- {`"`, LiteralStringDouble, Pop(1)},
- {`(?s)(\\\\|\\[0-7]+|\\.|[^"\\$])+`, LiteralStringDouble, nil},
- Include("interp"),
- },
- "curly": {
- {`\}`, LiteralStringInterpol, Pop(1)},
- {`:-`, Keyword, nil},
- {`\w+`, NameVariable, nil},
- {"[^}:\"\\'`$\\\\]+", Punctuation, nil},
- {`:`, Punctuation, nil},
- Include("root"),
- },
- "paren": {
- {`\)`, Keyword, Pop(1)},
- Include("root"),
- },
- "math": {
- {`\)\)`, Keyword, Pop(1)},
- {`[-+*/%^|&]|\*\*|\|\|`, Operator, nil},
- {`\d+#\d+`, LiteralNumber, nil},
- {`\d+#(?! )`, LiteralNumber, nil},
- {`\d+`, LiteralNumber, nil},
- Include("root"),
- },
- "backticks": {
- {"`", LiteralStringBacktick, Pop(1)},
- Include("root"),
- },
- },
- ).SetAnalyser(func(text string) float32 {
- if bashAnalyserRe.FindString(text) != "" {
- return 1.0
- }
- return 0.0
- }))
|