[3.10] bpo-45494: Fix parser crash when reporting errors involving invalid continuation characters (GH-28993) #29070
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…valid continuation characters (pythonGH-28993) There are two errors that this commit fixes: * The parser was not correctly computing the offset and the string source for E_LINECONT errors due to the incorrect usage of strtok(). * The parser was not correctly unwinding the call stack when a tokenizer exception happened in rules involving optionals ('?', [...]) as we always make them return valid results by using the comma operator. We need to check first if we don't have an error before continuing.. (cherry picked from commit a106343) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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There are two errors that this commit fixes:
source for E_LINECONT errors due to the incorrect usage of strtok().
exception happened in rules involving optionals ('?', [...]) as we
always make them return valid results by using the comma operator. We
need to check first if we don't have an error before continuing..
(cherry picked from commit a106343)
Co-authored-by: Pablo Galindo Salgado Pablogsal@gmail.com
https://bugs.python.org/issue45494