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* 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
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As specified in the Go specification, adapted to the following:
- the scanner recognise blocks as tokens
- the scanner is multi-language: define keywords in scanner spec
- as a result, we define how to skip semi-colon insertion rather
than how to add it.
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The scanner returns a slice of pointers to tokens instead of a
slice of tokens. The parser now pass the initial node context.
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Also simplify project structure. The executable is now produced in
the root directory. Work in progress.
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Refctor node kind names by concatenating category and instance, to
allow better sorting. Comments are now parsed and skipped during
generation of AST.
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* scanner: handle long string delimiters
Strings now can be delimited by arbitrary sequences of characters.
It is also possible to exclude the end delimiter, as for example
required for `//` C or Go comments.
* scanner: fix handling strings within blocks
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* codegen: add a bytecode generator
* cleaning scanner, parser and vm1.
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The conversion to numerical values is done by the scanner so it's
only done once. This will simplify and accelerate vm0 and the code
generator.
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