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2023-11-07parser: implement switch statementMarc Vertes
A VM instruction `EqualSet` has been added to preserve the left operand on the stack in case of failure, to allow efficient multiple tests on the same value. Both the pattern 'if/else if' and the classical case clauses have been implemented.
2023-11-03feat: add support for control flow operators in expressionsMarc Vertes
Logical operators `&&` (and), `||` (or) are now parsed in expressions. The control flow tokens (labels, conditional jumps) are added accordingly.
2023-10-21parser: implement operator precedence rules in expressionsMarc Vertes
2023-10-12move to a direct byte code compiler (#8)Marc Vertes
* chore: refactor to keep only the new parser and bytecode vm * scanner: remove Token.value field * scanner: remove scanner.kind field * chore: move language specification in lang package This avoid a cyclic dependency in scanner_test which can now use the golang/GoSpec language specification for Go. * clean code * scanner: export scanner fields Also parser now generate function calls, including externals. * chore: fix lint issues * parser: handle strings * wip * parser: implement support for 'if, else, else if' statements Resolving labels in the compiler still in progress. * parser: support if statements, improve compiler * improve handling of functions * improve support of local variables * scanner: trim leading and trailing spaces * fixes to make fibonacci work * parser: improve README, fix function parameters parsing