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custom integer literals (#17489)

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* user defined integer literals; refs #17020
* updated renderer.nim
* use mlexerutils helper
* imported all test cases from https://github.com/nim-lang/Nim/pull/17020
* final grammar updated
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Andreas Rumpf 2021-03-24 14:46:19 +01:00 • committed by GitHub
commit 5f5a92379f
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12 changed files with 409 additions and 218 deletions
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doc/grammar.txt
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@ -46,7 +46,7 @@ literal = | INT_LIT | INT8_LIT | INT16_LIT | INT32_LIT | INT64_LIT
| UINT_LIT | UINT8_LIT | UINT16_LIT | UINT32_LIT | UINT64_LIT
| FLOAT_LIT | FLOAT32_LIT | FLOAT64_LIT
| STR_LIT | RSTR_LIT | TRIPLESTR_LIT
| CHAR_LIT
| CHAR_LIT | CUSTOM_NUMERIC_LIT
| NIL
generalizedLit = GENERALIZED_STR_LIT | GENERALIZED_TRIPLESTR_LIT
identOrLiteral = generalizedLit | symbol | literal
@ -100,6 +100,7 @@ postExprBlocks = ':' stmt? ( IND{=} doBlock
| IND{=} 'of' exprList ':' stmt
| IND{=} 'elif' expr ':' stmt
| IND{=} 'except' exprList ':' stmt
| IND{=} 'finally' ':' stmt
| IND{=} 'else' ':' stmt )*
exprStmt = simpleExpr
(( '=' optInd expr colonBody? )