SyntaxError on parsing some of the applications docstrings

[pshv]

com.CreateObject('Visio.Application') returns SyntaxError starting from 1.1.13:

File "xxxxxxxxx\.tox\py39\lib\site-packages\comtypes\gen\_00021A98_0000_0000_C000_000000000046_0_4_16.py", line 20214 """A running instance of Visio. ProgId: "Visio.Application"""" SyntaxError: EOL while scanning string literal

Very likely this issue might also reproduce for some other applications that uses the same formatting of docstrings. Also, for a comparison, here's how the same line looks on 1.1.11:

'A running instance of Visio. ProgId: "Visio.Application"'

[junkmd]

Perhaps the causes are these.

https://github.com/enthought/comtypes/blob/096bfde508bc32466e3fac18790fc93bdaa3cc37/comtypes/tools/codegenerator.py#L660-L661 https://github.com/enthought/comtypes/blob/096bfde508bc32466e3fac18790fc93bdaa3cc37/comtypes/tools/codegenerator.py#L724-L725 https://github.com/enthought/comtypes/blob/096bfde508bc32466e3fac18790fc93bdaa3cc37/comtypes/tools/codegenerator.py#L801-L802

If only changing them to single quotes as before, it might also cause a SyntaxError by the source containing specific letters, like ' or \.

A better escaping method is needed.

[junkmd]

@pshv

Please try this (replace .../comtypes/tools/codegenerator.py). https://github.com/junkmd/comtypes/blob/fe273542dd878d54ea58add6ccd4935951f9ad9d/comtypes/tools/codegenerator.py

I don't have Visio in my environment, so please try if it works in yours.

[pshv]

@junkmd works well for me with patched codegenerator you provided, thanks!

[junkmd]

To solve this problem, I PRed #338.

In addition to the previous change, the indentation is also handled within the function.

[vasily-v-ryabov]

@pshv 1.1.14 is out. Please try.

[pshv]

Works well on 1.1.14, closing the issue. Thanks @junkmd @vasily-v-ryabov