Message378201
For what it's worth, here's how f-strings with the "=" feature work:
I remember the char* pointer where the expression starts, then I parse the expression into an AST, then I note the char* pointer where the expression ended. The text between those is what's output before the equal sign []. This is how I preserve all of the whitespace inside the expression.
In my case I keep the AST to use when the expression gets evaluated, but in the string annotation case you'd throw it away. I don't think it would be very complicated to make this approach work across newlines.
[] Actually, I keep the equal sign itself and whitespace to the right of it, which is how f'{ x = }' produces " x = 42", instead of "x=42". |
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Date |
User |
Action |
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2020-10-08 00:06:38 | eric.smith | set | recipients:
+ eric.smith, gvanrossum, lukasz.langa, lys.nikolaou, pablogsal, BTaskaya |
2020-10-08 00:06:38 | eric.smith | set | messageid: <1602115598.57.0.89874421661.issue41967@roundup.psfhosted.org> |
2020-10-08 00:06:38 | eric.smith | link | issue41967 messages |
2020-10-08 00:06:37 | eric.smith | create | |
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