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66
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1 package lexers
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2
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3 import (
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4 . "github.com/alecthomas/chroma/v2" // nolint
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5 )
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6
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7 // HTML lexer.
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8 var HTML = Register(MustNewLexer(
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9 &Config{
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10 Name: "HTML",
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11 Aliases: []string{"html"},
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12 Filenames: []string{"*.html", "*.htm", "*.xhtml", "*.xslt"},
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13 MimeTypes: []string{"text/html", "application/xhtml+xml"},
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14 NotMultiline: true,
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15 DotAll: true,
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16 CaseInsensitive: true,
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17 },
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18 htmlRules,
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19 ))
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20
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21 func htmlRules() Rules {
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22 return Rules{
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23 "root": {
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24 {`[^<&]+`, Text, nil},
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25 {`&\S*?;`, NameEntity, nil},
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26 {`\<\!\[CDATA\[.*?\]\]\>`, CommentPreproc, nil},
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27 {`<!--`, Comment, Push("comment")},
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28 {`<\?.*?\?>`, CommentPreproc, nil},
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29 {`<![^>]*>`, CommentPreproc, nil},
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30 {`(<)(\s*)(script)(\s*)`, ByGroups(Punctuation, Text, NameTag, Text), Push("script-content", "tag")},
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31 {`(<)(\s*)(style)(\s*)`, ByGroups(Punctuation, Text, NameTag, Text), Push("style-content", "tag")},
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32 {`(<)(\s*)([\w:.-]+)`, ByGroups(Punctuation, Text, NameTag), Push("tag")},
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33 {`(<)(\s*)(/)(\s*)([\w:.-]+)(\s*)(>)`, ByGroups(Punctuation, Text, Punctuation, Text, NameTag, Text, Punctuation), nil},
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34 },
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35 "comment": {
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36 {`[^-]+`, Comment, nil},
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37 {`-->`, Comment, Pop(1)},
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38 {`-`, Comment, nil},
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39 },
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40 "tag": {
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41 {`\s+`, Text, nil},
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42 {`([\w:-]+\s*)(=)(\s*)`, ByGroups(NameAttribute, Operator, Text), Push("attr")},
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43 {`[\w:-]+`, NameAttribute, nil},
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44 {`(/?)(\s*)(>)`, ByGroups(Punctuation, Text, Punctuation), Pop(1)},
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45 },
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46 "script-content": {
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47 {`(<)(\s*)(/)(\s*)(script)(\s*)(>)`, ByGroups(Punctuation, Text, Punctuation, Text, NameTag, Text, Punctuation), Pop(1)},
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48 {`.+?(?=<\s*/\s*script\s*>)`, Using("Javascript"), nil},
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49 },
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50 "style-content": {
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51 {`(<)(\s*)(/)(\s*)(style)(\s*)(>)`, ByGroups(Punctuation, Text, Punctuation, Text, NameTag, Text, Punctuation), Pop(1)},
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52 {`.+?(?=<\s*/\s*style\s*>)`, Using("CSS"), nil},
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53 },
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54 "attr": {
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55 {`".*?"`, LiteralString, Pop(1)},
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56 {`'.*?'`, LiteralString, Pop(1)},
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57 {`[^\s>]+`, LiteralString, Pop(1)},
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58 },
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59 }
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60 }
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