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janet/tools/tm_lang_gen.janet

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# Helper to generate core library mappings for janet
# Used to help build the tmLanguage grammar. Emits
# the entire .tmLanguage file for janet.
# Use dynamic binding and make this the first
# expression in the file to not pollute (all-bindings)
(setdyn :allsyms
(array/concat
@["break"
"def"
"do"
"var"
"set"
"fn"
"while"
"if"
"quote"
"quasiquote"
"unquote"
"splice"]
(all-bindings)))
(def allsyms (dyn :allsyms))
(def grammar-template
`````
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>fileTypes</key>
<array>
<string>janet</string>
</array>
<key>foldingStartMarker</key>
<string>\{</string>
<key>foldingStopMarker</key>
<string>\}</string>
<key>foldingStartMarker</key>
<string>\[</string>
<key>foldingStopMarker</key>
<string>\]</string>
<key>foldingStartMarker</key>
<string>\(</string>
<key>foldingStopMarker</key>
<string>\)</string>
<key>keyEquivalent</key>
<string>^~L</string>
<key>name</key>
<string>Janet</string>
<key>patterns</key>
<array>
<dict>
<key>include</key>
<string>#all</string>
</dict>
</array>
<key>repository</key>
<dict>
<key>all</key>
<dict>
<key>patterns</key>
<array>
<dict>
<key>include</key>
<string>#comment</string>
</dict>
<dict>
<key>include</key>
<string>#parens</string>
</dict>
<dict>
<key>include</key>
<string>#brackets</string>
</dict>
<dict>
<key>include</key>
<string>#braces</string>
</dict>
<dict>
<key>include</key>
<string>#readermac</string>
</dict>
<dict>
<key>include</key>
<string>#string</string>
</dict>
<dict>
<key>include</key>
<string>#longstring</string>
</dict>
<dict>
<key>include</key>
<string>#literal</string>
</dict>
<dict>
<key>include</key>
<string>#corelib</string>
</dict>
<dict>
<key>include</key>
<string>#r-number</string>
</dict>
<dict>
<key>include</key>
<string>#dec-number</string>
</dict>
<dict>
<key>include</key>
<string>#hex-number</string>
</dict>
<dict>
<key>include</key>
<string>#keysym</string>
</dict>
<dict>
<key>include</key>
<string>#symbol</string>
</dict>
</array>
</dict>
<key>comment</key>
<dict>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.comment.janet</string>
</dict>
</dict>
<key>match</key>
<string>(#).*$</string>
<key>name</key>
<string>comment.line.janet</string>
</dict>
<key>braces</key>
<dict>
<key>begin</key>
<string>(@?{)</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.braces.begin.janet</string>
</dict>
</dict>
<key>end</key>
<string>(})</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.braces.end.janet</string>
</dict>
</dict>
<key>patterns</key>
<array>
<dict>
<key>include</key>
<string>#all</string>
</dict>
</array>
</dict>
<key>brackets</key>
<dict>
<key>begin</key>
<string>(@?\[)</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.brackets.begin.janet</string>
</dict>
</dict>
<key>end</key>
<string>(\])</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.brackets.end.janet</string>
</dict>
</dict>
<key>patterns</key>
<array>
<dict>
<key>include</key>
<string>#all</string>
</dict>
</array>
</dict>
<key>parens</key>
<dict>
<key>begin</key>
<string>(@?\()</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.parens.begin.janet</string>
</dict>
</dict>
<key>end</key>
<string>(\))</string>
<key>captures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.parens.end.janet</string>
</dict>
</dict>
<key>patterns</key>
<array>
<dict>
<key>include</key>
<string>#all</string>
</dict>
</array>
</dict>
<key>readermac</key>
<dict>
<key>match</key>
<string>[\'\~\;\,]</string>
<key>name</key>
<string>punctuation.other.janet</string>
</dict>
<!-- string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]) token match here (?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string -->
<key>literal</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])(true|false|nil)(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
<key>name</key>
<string>constant.language.janet</string>
</dict>
<key>corelib</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])(%ALLSYMBOLS%)(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
<key>name</key>
<string>keyword.control.janet</string>
</dict>
<key>keysym</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]):[\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]*</string>
<key>name</key>
<string>constant.keyword.janet</string>
</dict>
<key>symbol</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[\.a-zA-Z_\-=!@\$%^&amp;?/&lt;&gt;*][\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*]*</string>
<key>name</key>
<string>variable.other.janet</string>
</dict>
<key>hex-number</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?0x([_\da-fA-F]+|[_\da-fA-F]+\.[_\da-fA-F]*|\.[_\da-fA-F]+)(&amp;[+-]?[\da-fA-F]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
<key>name</key>
<string>constant.numeric.hex.janet</string>
</dict>
<key>dec-number</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?([_\d]+|[_\d]+\.[_\d]*|\.[_\d]+)([eE&amp;][+-]?[\d]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
<key>name</key>
<string>constant.numeric.decimal.janet</string>
</dict>
<key>r-number</key>
<dict>
<key>match</key>
<string>(?&lt;![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])[-+]?\d\d?r([_\w]+|[_\w]+\.[_\w]*|\.[_\w]+)(&amp;[+-]?[\w]+)?(?![\.:\w_\-=!@\$%^&amp;?/&lt;&gt;*])</string>
<key>name</key>
<string>constant.numeric.decimal.janet</string>
</dict>
<key>string</key>
<dict>
<key>begin</key>
<string>(@?")</string>
<key>beginCaptures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.string.begin.janet</string>
</dict>
</dict>
<key>end</key>
<string>(")</string>
<key>endCaptures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.string.end.janet</string>
</dict>
</dict>
<key>name</key>
<string>string.quoted.double.janet</string>
<key>patterns</key>
<array>
<dict>
<key>match</key>
<string>(\\[nevr0zft"\\']|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{6})</string>
<key>name</key>
<string>constant.character.escape.janet</string>
</dict>
</array>
</dict>
<key>longstring</key>
<dict>
<key>begin</key>
<string>(@?)(`+)</string>
<key>beginCaptures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.string.begin.janet</string>
</dict>
<key>2</key>
<dict>
<key>name</key>
<string>punctuation.definition.string.begin.janet</string>
</dict>
</dict>
<key>end</key>
<string>\2</string>
<key>endCaptures</key>
<dict>
<key>1</key>
<dict>
<key>name</key>
<string>punctuation.definition.string.end.janet</string>
</dict>
</dict>
<key>name</key>
<string>string.quoted.triple.janet</string>
</dict>
<key>nomatch</key>
<dict>
<key>match</key>
<string>\S+</string>
<key>name</key>
<string>invalid.illegal.janet</string>
</dict>
</dict>
<key>scopeName</key>
<string>source.janet</string>
<key>uuid</key>
<string>3743190f-20c4-44d0-8640-6611a983296b</string>
</dict>
</plist>
`````)
# Now we generate the bindings in the language.
(def- escapes
{(get "|" 0) `\|`
(get "-" 0) `\-`
(get "+" 0) `\+`
(get "*" 0) `\*`
(get "^" 0) `\^`
(get "$" 0) `\$`
(get "?" 0) `\?`
38 "&amp;"
60 "&lt;"
62 "&gt;"
34 "&quot;"
39 "&#39;"
47 "&#47;"})
(defn- escape
"Escape special characters for HTML and regex encoding."
[str]
(def buf @"")
(loop [byte :in str]
(if-let [rep (get escapes byte)]
(buffer/push-string buf rep)
(buffer/push-byte buf byte)))
buf)
(def pattern (string/join (map escape allsyms) "|"))
(print (string/replace "%ALLSYMBOLS%" pattern grammar-template))