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Improve parsing of % followed immediately by identifier

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If it's not a recognised directive the scanner now emits MODULO and then
rescans what follows, and if the parser then gives a syntax error we
report it as an unknown directive. This means that `a%b` is now allowed
in an expression, and that things like `%std::vector<std::string>` now
give an error rather than being quietly ignored.

Fixes #300
Fixes #368
This commit is contained in:
Olly Betts 2022-02-15 15:03:36 +13:00
commit a7ff0da1f3
7 changed files with 43 additions and 7 deletions
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@ -7,6 +7,15 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
Version 4.1.0 (in progress)
===========================
2022-02-15: olly
#300 #368 Improve parser handling of % followed immediately by
an identifier. If it's not a recognised directive the scanner
now emits MODULO and then rescans what follows, and if the parser
then gives a syntax error we report it as an unknown directive.
This means that `a%b` is now allowed in an expression, and that
things like `%std::vector<std::string>` now give an error rather
than being quietly ignored.
2022-02-10: olly
[Tcl] https://sourceforge.net/p/swig/bugs/1207/
https://sourceforge.net/p/swig/bugs/1213/