Transform a grammar with upper- and lowercase string literals
The ulliteral command applies the upper- and lowercase string literal transform to a collection of terminal nodes in the parse tree, which is identified with the supplied xpath expression. If the xpath expression is not given, the transform is applied to the whole file.
trull <xpath>?
Before:
grammar KeywordFun;
a : 'abc';
b : 'def';
A : 'abc';
B : 'def';
C : 'uvw' 'xyz'?;
D : 'uvw' 'xyz'+;
Command:
trparse KeywordFun.g4 | trull "//lexerRuleSpec[TOKEN_REF/text() = 'A']//STRING_LITERAL" | trprint
After:
grammar KeywordFun;
a : 'abc';
b : 'def';
A : [aA] [bB] [cC];
B : 'def';
C : 'uvw' 'xyz'?;
D : 'uvw' 'xyz'+;
Command:
trparse KeywordFun.g4 | trull | trprint
After:
grammar KeywordFun;
a : 'abc';
b : 'def';
A : [aA] [bB] [cC];
B : [dD] [eE] [fF];
C : [uU] [vV] [wW] ( [xX] [yY] [zZ] )?;
D : [uU] [vV] [wW] ( [xX] [yY] [zZ] )+;
If you are running MSYS2 on Windows, you may notice that XPaths are not being processed by this command correctly. To avoid the Bash shell from altering XPaths, type export MSYS2_ARG_CONV_EXCL="*", then execute your command.
0.23.2 Code clean up. Rename Domemtech.Trash to just Trash. Add match-required to trquery.
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Copyright (c) 2024 Ken Domino
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