You can type the search pattern in the Compile input box and press the Enter key (or Ctrl+r) to execute. For example, re.compile(r'\d') to match digit characters. Matching portions will be highlighted in red.
The compiled pattern is available via the pat variable and you can use ip to refer to the input string. You can transform or extract data by typing appropriate expression in the Action box. For example, pat.sub(r'(\g<0>)', ip) will add parenthesis around the matching portions.
You can skip the Compile box and directly use the Action box too. For example, [m.span() for m in re.finditer(r'\d+', ip)] to get the location of all the matching portions.
Warning: There is no safeguard against the commands you have typed. They are treated as if you executed them from a Python program.
Press F2 to get back to the Playground from other screens. You can also click the buttons at the top to navigate between the different screens.
You can press Ctrl+p to edit the contents of the input string.
After making the changes, press Ctrl+r or navigate to Compile/Action box and press the Enter key to update the results for the changed data.
The input string is obtained from the ip.txt file located in the app directory. So, changing this file before starting the app is another option.
Some of the error types are caught. In such cases, the background color of the input boxes will change to red and the error message will be displayed below the corresponding box. Other errors might result in the app crashing.
- Use the mouse to position the cursor anywhere you like
- ← move left by one character
- → move right by one character
- Home or Ctrl+a move to the start of the line
- End or Ctrl+e move to the end of the line
- Ctrl+← move to the start of the current/previous word
- Ctrl+→ move to the start of the next word
- Ctrl+w delete till the start of the current/previous word
- Ctrl+f delete till the start of the next word
- Ctrl+u delete till the start of the line
- Ctrl+k delete till the end of the line
- Backspace or Ctrl+h delete character to the left of the cursor
- Delete or Ctrl+d delete character under the cursor
- Enter or Ctrl+r submit the code for execution
To navigate between widgets in the same screen:
- Tab to move to the next box
- Shift+Tab to move to the previous box
Press Ctrl+t to toggle between light and dark themes.
Press F1 to display this help screen.
Press F3 to display a cheatsheet for Python regular expressions.
Press F4 for regular expression examples covering various topics. You can modify the code snippets and pressing the Enter key will update the corresponding output. Press Ctrl+z to discard changes and reload the examples.
Warning: There is no safeguard against the commands you have typed. They are treated as if you executed them from a Python program.