add OpenSCAD lexer (#886)

pygments · jeanas · Jun 14, 2023 · Jun 4, 2023 · Jun 6, 2023 · Jun 13, 2023
commit fc5c0cceea8682be51cf27a75dee9d662af75d4f
diff --git a/AUTHORS b/AUTHORS
@@ -267,5 +267,6 @@ Other contributors, listed alphabetically, are:
 * Marc Auberer -- Spice lexer
 * Amr Hesham -- Carbon lexer
 * diskdance -- Wikitext lexer
+* Nikolay Antipov -- OpenSCAD lexer
 
 Many thanks for all contributions!
diff --git a/pygments/lexers/_mapping.py b/pygments/lexers/_mapping.py
@@ -353,6 +353,7 @@
     'OocLexer': ('pygments.lexers.ooc', 'Ooc', ('ooc',), ('*.ooc',), ('text/x-ooc',)),
     'OpaLexer': ('pygments.lexers.ml', 'Opa', ('opa',), ('*.opa',), ('text/x-opa',)),
     'OpenEdgeLexer': ('pygments.lexers.business', 'OpenEdge ABL', ('openedge', 'abl', 'progress'), ('*.p', '*.cls'), ('text/x-openedge', 'application/x-openedge')),
+    'OpenScadLexer': ('pygments.lexers.openscad', 'OpenSCAD', ('openscad',), ('*.scad',), ()),
     'OutputLexer': ('pygments.lexers.special', 'Text output', ('output',), (), ()),
     'PacmanConfLexer': ('pygments.lexers.configs', 'PacmanConf', ('pacmanconf',), ('pacman.conf',), ()),
     'PanLexer': ('pygments.lexers.dsls', 'Pan', ('pan',), ('*.pan',), ()),

diff --git a/pygments/lexers/openscad.py b/pygments/lexers/openscad.py
@@ -0,0 +1,67 @@
+"""
+    pygments.lexers.openscad
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Lexers for the OpenSCAD languages.
+
+    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import RegexLexer, bygroups
+from pygments.token import Text, Comment, Punctuation, Operator, Keyword, Name, Literal
+
+__all__ = ['OpenScadLexer']
+
+
+class OpenScadLexer(RegexLexer):
+    name = "OpenSCAD"
+    aliases = ["openscad"]
+    filenames = ["*.scad"]
+
+    tokens = {
+        "root": [
+            (r"[^\S\n]+", Text),
+            (r"\n", Text),
+            (r"//(\n|[\w\W]*?[^\\]\n)", Comment.Singleline),
+            (r"/(\\\n)?[*][\w\W]*?[*](\\\n)?/", Comment.Mutliline),
+            (r"/(\\\n)?[*][\w\W]*", Comment.Mutliline),
+            (r"[{}\[\]\(\),;:]", Punctuation),
+            (r"[*!#%\-+=?/]", Operator),
+            (r"&lt;=|&lt;|==|!=|&gt;=|&gt;|&amp;&amp;|\|\|", Operator),
+            (r"\$(f[asn]|t|vp[rtd]|children)", Operator),
+            (r"(undef|PI)\b", Keyword.Constant),
+            (
+                r"(use|include)((?:\s|\\\\s)+)",
+                bygroups(Keyword.Namespace, Text),
+                "includes",
+            ),
+            (
+                r"(module)(\s*)([^\s\(]+)",
+                bygroups(Keyword.Namespace, Text, Name.Namespace),
+            ),
+            (
+                r"(function)(\s*)([^\s\(]+)",
+                bygroups(Keyword.Declaration, Text, Name.Function),
+            ),
+            (r"\b(true|false)\b", Literal),
+            (
+                r"\b(function|module|include|use|for|intersection_for|if|else|return)\b",
+                Keyword,
+            ),
+            (
+                r"\b(circle|square|polygon|text|sphere|cube|cylinder|polyhedron|translate|rotate|scale|resize|mirror|multmatrix|color|offset|hull|minkowski|union|difference|intersection|abs|sign|sin|cos|tan|acos|asin|atan|atan2|floor|round|ceil|ln|log|pow|sqrt|exp|rands|min|max|concat|lookup|str|chr|search|version|version_num|norm|cross|parent_module|echo|import|import_dxf|dxf_linear_extrude|linear_extrude|rotate_extrude|surface|projection|render|dxf_cross|dxf_dim|let|assign|len)\b",
+                Name.Builtin,
+            ),
+            (r"\bchildren\b", Name.Builtin.Pseudo),
+            (r"&#34;(\\\\|\\&#34;|[^&#34;])*&#34;", Literal.StringDouble),
+            (r"-?\d+(\.\d+)?(e[+-]?\d+)?", Literal.Number),
+            (r"[a-zA-Z_]\w*", Name),
+        ],
+        "includes": [
+            (
+                r"(&lt;)([^&gt;]*)(&gt;)",
+                bygroups(Punctuation, Comment.PreprocFile, Punctuation),
+            ),
+        ],
+    }