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Add a wasm browser based playground#41

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mingodad wants to merge 40 commits intocwbaker:maincwbaker/lalr:mainfrom mingodad:playgroundmingodad/lalr:playgroundCopy head branch name to clipboard

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Commits on Jun 22, 2023

• Add 'std::' in several places as suggested by clang

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• Fix to detect identifiers referenced in rules but not defined

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• Add preprocessor guards to allow build without threads/threadpool.

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• Make possible to accept associativity/precedence syntax like bison/byacc

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• Add an error message for empty literal/regex declarations, also fix to accept "'\''" literal.

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• Check if '%whitespace' directive is present in the grammar and if not emit an error message.

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• Add code to allow generate an EBNF for railroad diagram generation

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• Add method to dump the input from the lexer.

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• Reuse result of already called function.

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• Add a method to show grammar compilation stats.

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• Reorder class member for better memory usage/alignment.

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• Rename write output function to prevent clash with C lib ::write

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• Use a typedef and macros to allow easy experimenting with different type to store bitfields.

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Commits on Jun 23, 2023

• Simplify GrammaSymbolSet

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• Only check for '%whitespace' directive if the grammar has no other errors.

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  06dfb8e

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• Fix examples/test that were missing '%whitespace' directive.

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• Check if we are at the end and then stop

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• First working version of an wasm browser based playground

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• Add a naive implementation of "%case_insensitive" directive, right now it only work on literals and only for ASCII

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• Add column info to error messages in ErrorPolicy

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Commits on Jun 25, 2023

• Add special regex character escape for the naive case insensitive implementation

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Commits on Jun 26, 2023

• Make trivial methods inline.

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• Add column info to GrammarSymbol and error messages

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Commits on Jun 28, 2023

• First implementation for outptut an parse tree. The MissingHeaders test is failing and need review.

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• Check if the input is accepted && full before print the parse tree

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Commits on Jul 16, 2023

• Now I've got closer to a good parse tree dump

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• Missing fixes for a better parse tree output

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• Show an error message when associativity is assigned to a non-terminal.

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• Undo a mistaken removing code for a better parse tree output.

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  1d09221

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• Fix generation of empty productions for genEBNF

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Commits on Jul 17, 2023

• Add YACC generation from LALR grammars.

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Commits on Jul 18, 2023

• Fix to only match fully words, because before it was matching a substring like 'error' inside 'errors'

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• Add a missing case when generating a YACC file

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• Add the reducing transition as a parameter to action handlers, this way I can generate a better parse tree.

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• Update examples to use the extra action handler parameter recently introduced

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Commits on Jul 19, 2023

• Add 2 new grammar options to easy debug, also fix line counting when the line end is multi character like of '\r\n'

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Commits on Nov 14, 2023

• Add code to detect user content changes and alert him/her

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• Added grammar examples

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• Update code

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• Create static.yml

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