pygments2chroma updates (#509)

README.md

@@ -210,10 +210,10 @@ using the included Python 3 script `pygments2chroma.py`. I use something like
 the following:
 
 ```sh
-python3 ~/Projects/chroma/_tools/pygments2chroma.py \
+python3 _tools/pygments2chroma.py \
   pygments.lexers.jvm.KotlinLexer \
-  > ~/Projects/chroma/lexers/kotlin.go \
-  && gofmt -s -w ~/Projects/chroma/lexers/*.go
+  > lexers/k/kotlin.go \
+  && gofmt -s -w lexers/k/kotlin.go
 ```
 
 See notes in [pygments-lexers.txt](https://github.com/alecthomas/chroma/blob/master/pygments-lexers.txt)

_tools/pygments2chroma.py

@@ -12,7 +12,7 @@ from pygments.token import _TokenType
 
 
 TEMPLATE = r'''
-package lexers
+package {{package}}
 
 import (
 	. "github.com/alecthomas/chroma" // nolint
@@ -23,9 +23,11 @@ import (
 var {{upper_name}} = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:      "{{name}}",
-        Aliases:   []string{ {{#aliases}}"{{.}}", {{/aliases}} },
-        Filenames: []string{ {{#filenames}}"{{.}}", {{/filenames}} },
-        MimeTypes: []string{ {{#mimetypes}}"{{.}}", {{/mimetypes}} },
+		{{=<% %>=}}
+		Aliases:   []string{<%#aliases%>"<%.%>", <%/aliases%>},
+		Filenames: []string{<%#filenames%>"<%.%>", <%/filenames%>},
+		MimeTypes: []string{<%#mimetypes%>"<%.%>", <%/mimetypes%>},
+		<%={{ }}=%>
 {{#re_not_multiline}}
 		NotMultiline: true,
 {{/re_not_multiline}}
@@ -185,9 +187,10 @@ def main():
     assert issubclass(lexer_cls, pygments_lexer.RegexLexer), 'can only translate from RegexLexer'
 
     print(pystache.render(TEMPLATE, TemplateView(
+        package=lexer_cls.name.lower()[0],
         name=lexer_cls.name,
         regex_flags=lexer_cls.flags,
-        upper_name=to_camel_case(lexer_cls.name),
+        upper_name=to_camel_case(re.sub(r'\W', '_', lexer_cls.name)),
         aliases=lexer_cls.aliases,
         filenames=lexer_cls.filenames,
         mimetypes=lexer_cls.mimetypes,