Added Xonsh language support

docs/languages.md

@@ -34,5 +34,6 @@ Jupytext works with notebooks in any of the following languages:
 - TypeScript
 - Wolfram Language
   - Note that Jupytext uses the non-standard `.wolfram` file extension for Wolfram Language files to avoid conflicts with Matlab.
+- Xonsh
 
 Extending Jupytext to more languages should be easy, see the sections on [contributing to](contributing.md) and [developing](developing.md) Jupytext.

jupyterlab/yarn.lock

@@ -10812,21 +10812,21 @@ __metadata:
 
 "typescript@patch:typescript@^3 || ^4#~builtin<compat/typescript>":
   version: 4.9.5
-  resolution: "typescript@patch:typescript@npm%3A4.9.5#~builtin<compat/typescript>::version=4.9.5&hash=289587"
+  resolution: "typescript@patch:typescript@npm%3A4.9.5#~builtin<compat/typescript>::version=4.9.5&hash=23ec76"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 1f8f3b6aaea19f0f67cba79057674ba580438a7db55057eb89cc06950483c5d632115c14077f6663ea76fd09fce3c190e6414bb98582ec80aa5a4eaf345d5b68
+  checksum: ab417a2f398380c90a6cf5a5f74badd17866adf57f1165617d6a551f059c3ba0a3e4da0d147b3ac5681db9ac76a303c5876394b13b3de75fdd5b1eaa06181c9d
   languageName: node
   linkType: hard
 
 "typescript@patch:typescript@~5.0.2#~builtin<compat/typescript>":
   version: 5.0.4
-  resolution: "typescript@patch:typescript@npm%3A5.0.4#~builtin<compat/typescript>::version=5.0.4&hash=b5f058"
+  resolution: "typescript@patch:typescript@npm%3A5.0.4#~builtin<compat/typescript>::version=5.0.4&hash=85af82"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: d26b6ba97b6d163c55dbdffd9bbb4c211667ebebc743accfeb2c8c0154aace7afd097b51165a72a5bad2cf65a4612259344ff60f8e642362aa1695c760d303ac
+  checksum: bb309d320c59a26565fb3793dba550576ab861018ff3fd1b7fccabbe46ae4a35546bc45f342c0a0b6f265c801ccdf64ffd68f548f117ceb7f0eac4b805cd52a9
   languageName: node
   linkType: hard
 

src/jupytext/languages.py

@@ -90,6 +90,7 @@
         "comment": "/*",
         "comment_suffix": "*/",
     },
+    ".xsh": {"language": "xonsh", "comment": "#"},
 }
 
 _COMMENT_CHARS = [

tests/data/notebooks/inputs/ipynb_xonsh/xonsh_example.ipynb

@@ -0,0 +1,58 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "35196\n"
+     ]
+    }
+   ],
+   "source": [
+    "len($(curl -L https://xon.sh))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "xonsh_example.ipynb\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "for filename in `.*`:\n",
+    "    print(filename)\n",
+    "    du -sh @(filename)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Xonsh",
+   "language": "xonsh",
+   "name": "xonsh"
+  },
+  "language_info": {
+   "codemirror_mode": "shell",
+   "file_extension": ".xsh",
+   "mimetype": "text/x-sh",
+   "name": "xonsh",
+   "pygments_lexer": "xonsh",
+   "version": "0.14.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}

tests/data/notebooks/outputs/ipynb_to_Rmd/xonsh_example.Rmd

@@ -0,0 +1,17 @@
+---
+jupyter:
+  kernelspec:
+    display_name: Xonsh
+    language: xonsh
+    name: xonsh
+---
+
+```{xonsh}
+len($(curl -L https://xon.sh))
+```
+
+```{xonsh}
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)
+```

tests/data/notebooks/outputs/ipynb_to_hydrogen/xonsh_example.xsh

@@ -0,0 +1,15 @@
+# ---
+# jupyter:
+#   kernelspec:
+#     display_name: Xonsh
+#     language: xonsh
+#     name: xonsh
+# ---
+
+# %%
+len($(curl -L https://xon.sh))
+
+# %%
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)

tests/data/notebooks/outputs/ipynb_to_md/xonsh_example.md

@@ -0,0 +1,17 @@
+---
+jupyter:
+  kernelspec:
+    display_name: Xonsh
+    language: xonsh
+    name: xonsh
+---
+
+```xonsh
+len($(curl -L https://xon.sh))
+```
+
+```xonsh
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)
+```

tests/data/notebooks/outputs/ipynb_to_myst/xonsh_example.md

@@ -0,0 +1,16 @@
+---
+kernelspec:
+  display_name: Xonsh
+  language: xonsh
+  name: xonsh
+---
+
+```{code-cell} xonsh
+len($(curl -L https://xon.sh))
+```
+
+```{code-cell} xonsh
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)
+```

tests/data/notebooks/outputs/ipynb_to_percent/xonsh_example.xsh

@@ -0,0 +1,15 @@
+# ---
+# jupyter:
+#   kernelspec:
+#     display_name: Xonsh
+#     language: xonsh
+#     name: xonsh
+# ---
+
+# %%
+len($(curl -L https://xon.sh))
+
+# %%
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)

tests/data/notebooks/outputs/ipynb_to_script/xonsh_example.xsh

@@ -0,0 +1,13 @@
+# ---
+# jupyter:
+#   kernelspec:
+#     display_name: Xonsh
+#     language: xonsh
+#     name: xonsh
+# ---
+
+len($(curl -L https://xon.sh))
+
+for filename in `.*`:
+    print(filename)
+    du -sh @(filename)