99 lines
3.5 KiB
Go
99 lines
3.5 KiB
Go
package f
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Fish lexer.
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var Fish = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "Fish",
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Aliases: []string{"fish", "fishshell"},
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Filenames: []string{"*.fish", "*.load"},
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MimeTypes: []string{"application/x-fish"},
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},
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fishRules,
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))
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func fishRules() Rules {
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keywords := []string{
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`begin`, `end`, `if`, `else`, `while`, `break`, `for`, `return`, `function`, `block`,
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`case`, `continue`, `switch`, `not`, `and`, `or`, `set`, `echo`, `exit`, `pwd`, `true`,
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`false`, `cd`, `cdh`, `count`, `test`,
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}
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keywordsPattern := Words(`\b`, `\b`, keywords...)
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builtins := []string{
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`alias`, `bg`, `bind`, `breakpoint`, `builtin`, `argparse`, `abbr`, `string`, `command`,
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`commandline`, `complete`, `contains`, `dirh`, `dirs`, `disown`, `emit`, `eval`, `exec`,
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`fg`, `fish`, `fish_add_path`, `fish_breakpoint_prompt`, `fish_command_not_found`,
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`fish_config`, `fish_git_prompt`, `fish_greeting`, `fish_hg_prompt`, `fish_indent`,
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`fish_is_root_user`, `fish_key_reader`, `fish_mode_prompt`, `fish_opt`, `fish_pager`,
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`fish_prompt`, `fish_right_prompt`, `fish_status_to_signal`, `fish_svn_prompt`,
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`fish_title`, `fish_update_completions`, `fish_vcs_prompt`, `fishd`, `funced`,
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`funcsave`, `functions`, `help`, `history`, `isatty`, `jobs`, `math`, `mimedb`, `nextd`,
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`open`, `prompt_pwd`, `realpath`, `popd`, `prevd`, `psub`, `pushd`, `random`, `read`,
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`set_color`, `source`, `status`, `suspend`, `trap`, `type`, `ulimit`, `umask`, `vared`,
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`fc`, `getopts`, `hash`, `kill`, `printf`, `time`, `wait`,
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}
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return Rules{
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"root": {
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Include("basic"),
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Include("interp"),
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Include("data"),
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},
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"interp": {
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{`\$\(\(`, Keyword, Push("math")},
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{`\(`, Keyword, Push("paren")},
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{`\$#?(\w+|.)`, NameVariable, nil},
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},
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"basic": {
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{Words(`(?<=(?:^|\A|;|&&|\|\||\||`+keywordsPattern+`)\s*)`, `(?=;?\b)`, keywords...), Keyword, nil},
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{`(?<=for\s+\S+\s+)in\b`, Keyword, nil},
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{Words(`\b`, `\s*\b(?!\.)`, builtins...), NameBuiltin, nil},
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{`#!.*\n`, CommentHashbang, nil},
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{`#.*\n`, Comment, nil},
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{`\\[\w\W]`, LiteralStringEscape, nil},
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{`(\b\w+)(\s*)(=)`, ByGroups(NameVariable, Text, Operator), nil},
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{`[\[\]()={}]`, Operator, nil},
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{`(?<=\[[^\]]+)\.\.|-(?=[^\[]+\])`, Operator, nil},
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{`<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2`, LiteralString, nil},
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{`(?<=set\s+(?:--?[^\d\W][\w-]*\s+)?)\w+`, NameVariable, nil},
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{`(?<=for\s+)\w[\w-]*(?=\s+in)`, NameVariable, nil},
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{`(?<=function\s+)\w(?:[^\n])*?(?= *[-\n])`, NameFunction, nil},
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{`(?<=(?:^|\b(?:and|or|sudo)\b|;|\|\||&&|\||\(|(?:\b\w+\s*=\S+\s)) *)\w[\w-]*`, NameFunction, nil},
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},
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"data": {
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{`(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\$])*"`, LiteralStringDouble, nil},
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{`"`, LiteralStringDouble, Push("string")},
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{`(?s)\$'(\\\\|\\[0-7]+|\\.|[^'\\])*'`, LiteralStringSingle, nil},
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{`(?s)'.*?'`, LiteralStringSingle, nil},
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{`;`, Punctuation, nil},
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{`&&|\|\||&|\||\^|<|>`, Operator, nil},
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{`\s+`, Text, nil},
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{`\b\d+\b`, LiteralNumber, nil},
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{`--?[^\d][\w-]*`, NameAttribute, nil},
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{".+?", Text, nil},
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},
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"string": {
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{`"`, LiteralStringDouble, Pop(1)},
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{`(?s)(\\\\|\\[0-7]+|\\.|[^"\\$])+`, LiteralStringDouble, nil},
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Include("interp"),
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},
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"paren": {
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{`\)`, Keyword, Pop(1)},
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Include("root"),
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},
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"math": {
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{`\)\)`, Keyword, Pop(1)},
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{`[-+*/%^|&]|\*\*|\|\|`, Operator, nil},
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{`\d+#\d+`, LiteralNumber, nil},
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{`\d+#(?! )`, LiteralNumber, nil},
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{`\d+`, LiteralNumber, nil},
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Include("root"),
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},
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}
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}
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