Merge pull request #1019 from jfbercher/code_prettify

[code_prettify] added support for IPython magics, cf #1018

Author: jfbercher

src/jupyter_contrib_nbextensions/nbextensions/code_prettify/2to3.yaml

@@ -3,7 +3,7 @@ Name: 2to3 Converter
 Description: Converts python2 code in a notebook's code cell to python3 code
 Link: README_2to3.md
 Main: 2to3.js
-Compatibility: Jupyter (4.x)
+Compatibility: Jupyter 4.x, 5.x
 Parameters:
 
 - name: 2to3.add_toolbar_button

src/jupyter_contrib_nbextensions/nbextensions/code_prettify/autopep8.yaml

@@ -3,7 +3,7 @@ Name: Autopep8
 Description: Use kernel-specific code to reformat/prettify the contents of code cells
 Link: README_autopep8.md
 Main: autopep8.js
-Compatibility: Jupyter (4.x)
+Compatibility: Jupyter 4.x, 5.x
 Parameters:
 
 - name: autopep8.add_toolbar_button

src/jupyter_contrib_nbextensions/nbextensions/code_prettify/code_prettify.js

@@ -25,9 +25,15 @@ define(function(require, exports, module) {
 
     cfg.kernel_config_map = { // map of parameters for supported kernels
         "python": {
-            "library": "import json\nimport yapf.yapflib.yapf_api",
-            "prefix": "print(json.dumps(yapf.yapflib.yapf_api.FormatCode(u",
-            "postfix": ")[0]))"
+            "library": ["import json",
+            "def yapf_reformat(cell_text):", 
+            "    import yapf.yapflib.yapf_api",
+            "    import re",
+            "    cell_text = re.sub('^%', '#%#', cell_text, flags=re.M)",
+            "    reformated_text = yapf.yapflib.yapf_api.FormatCode(cell_text)[0]",
+            "    return re.sub('^#%#', '%', reformated_text, flags=re.M)"].join("\n"),
+            "prefix": "print(json.dumps(yapf_reformat(u",
+            "postfix": ")))"
         },
         "r": {
             "library": "library(formatR)\nlibrary(jsonlite)",

src/jupyter_contrib_nbextensions/nbextensions/code_prettify/code_prettify.yaml

@@ -3,7 +3,7 @@ Name: Code prettify
 Description: Use kernel-specific code to reformat/prettify the contents of code cells
 Link: README_code_prettify.md
 Main: code_prettify.js
-Compatibility: Jupyter (4.x)
+Compatibility: Jupyter 4.x, 5.x
 Parameters:
 
 - name: code_prettify.add_toolbar_button
@@ -55,7 +55,7 @@ Parameters:
   default: |
     {
       "python": {
-        "library": "import json\nimport yapf.yapflib.yapf_api",
+        "library": "import json\ndef yapf_reformat(cell_text):\n    import yapf.yapflib.yapf_api\n    import re\n    cell_text = re.sub('^%', '#%#', cell_text, flags=re.M)\n    reformated_text = yapf.yapflib.yapf_api.FormatCode(cell_text)[0]\n    return re.sub('^#%#', '%', reformated_text, flags=re.M)",
         "prefix": "print(json.dumps(yapf.yapflib.yapf_api.FormatCode(u",
         "postfix": ")[0]))"
       },