alogos._grammar.parsing.io_with_regex

Functions

read_bnf(grammar, bnf_text, verbose, *symbols)	Read grammar from text in BNF notation.
read_ebnf(grammar, ebnf_text, verbose, *symbols)	Read grammar from text in EBNF notation.
write_bnf(grammar, rules_on_separate_lines, *symbols)	Write grammar as text in BNF notation.
write_ebnf(grammar, rules_on_separate_lines, *symbols)	Write grammar as text in EBNF notation.

---

Detailed object descriptions

alogos._grammar.parsing.io_with_regex.read_bnf(grammar, bnf_text, verbose, *symbols)

Read grammar from text in BNF notation.

alogos._grammar.parsing.io_with_regex.read_ebnf(grammar, ebnf_text, verbose, *symbols)

Read grammar from text in EBNF notation.

References

• https://en.wikipedia.org/wiki/Wirth_syntax_notation

• http://homepage.divms.uiowa.edu/~jones/compiler/gtools/

• Conversion of EBNF to BNF notation

  • https://stackoverflow.com/questions/2466484/converting-ebnf-to-bnf

  • https://stackoverflow.com/questions/2842809/lexers-vs-parsers useful notes in “EBNF really doesn’t add much to the power of grammars.”

  • https://condor.depaul.edu/ichu/csc447/notes/wk3/BNF.pdf useful notes in summary on last page

  • https://stackoverflow.com/questions/20175248/ebnf-is-this-an-ll1-grammar

alogos._grammar.parsing.io_with_regex.write_bnf(grammar, rules_on_separate_lines, *symbols)

Write grammar as text in BNF notation.

alogos._grammar.parsing.io_with_regex.write_ebnf(grammar, rules_on_separate_lines, *symbols)

Write grammar as text in EBNF notation.