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# Pyparsing Examples
This directory contains a number of examples of parsers created using pyparsing. They fall into a few general
categories (several examples include supporting railroad diagrams):
<!-- TOC -->
* [Pyparsing tutorial and language feature demonstrations](#pyparsing-tutorial-and-language-feature-demonstrations)
* [Language parsers](#language-parsers)
* [Domain Specific Language parsers](#domain-specific-language-parsers)
* [Search and query language parsers](#search-and-query-language-parsers)
* [Data format parsers](#data-format-parsers)
* [Logical and arithmetic infix notation parsers and examples](#logical-and-arithmetic-infix-notation-parsers-and-examples)
* [Helpful utilities](#helpful-utilities)
<!-- TOC -->
## Pyparsing tutorial and language feature demonstrations
* Hello World!
* [greeting.py](./greeting.py)
* [greetingInGreek.py](./greetingInGreek.py)
* [greetingInKorean.py](./greetingInKorean.py)
* [hola_mundo.py](./hola_mundo.py)
* left recursion
* [left_recursion.py](./left_recursion.py)
* macro expansion
* [macro_expander.py](./macro_expander.py)
* Roman numerals
* [roman_numerals.py](./roman_numerals.py)
* Unicode text handling
* [tag_metadata.py](./tag_metadata.py) [(diagram)](./tag_metadata_diagram.html)
* chemical formulas
* [chemical_formulas.py](./chemical_formulas.py)
* [complex_chemical_formulas.py](./complex_chemical_formulas.py)
* API checker
* [apicheck.py](./apicheck.py) [(diagram)](./apicheck_diagram.html)
* scan_string examples
* [scanExamples.py](./scanExamples.py)
* transform_string examples
* [include_preprocessor.py](./include_preprocessor.py)
* [macro_expander.py](./macro_expander.py)
* [nested_markup.py](./nested_markup.py)
* parse actions and conditions
* [shapes.py](./shapes.py)
* [number_words.py](./number_words.py) [(diagram)](./number_words_diagram.html)
* [wordsToNum.py](./wordsToNum.py)
* [range_check.py](./range_check.py)
* [one_to_ninety_nine.py](./one_to_ninety_nine.py)
* railroad diagrams
* [railroad_diagram_demo.py](./railroad_diagram_demo.py) [(diagram)](./railroad_diagram_demo.html)
* web page scraping
* [getNTPserversNew.py](./getNTPserversNew.py)
* [html_stripper.py](./html_stripper.py)
* [html_table_parser.py](./html_table_parser.py)
* [urlExtractorNew.py](./urlExtractorNew.py)
## Language parsers
* C
* [oc.py](./oc.py)
* lua
* [lua_parser.py](./lua_parser.py) [(diagram)](./lua_parser_diagram.html)
* lox
* [lox_parser.py](./lox_parser.py) [(diagram)](./lox_parser_diagram.html)
* verilog
* [verilog_parse.py](./verilog_parse.py)
* brainf*ck
* [bf.py](./bf.py) [(diagram)](./bf_diagram.html)
* decaf
* [decaf_parser.py](./decaf_parser.py) [(diagram)](./decaf_parser_diagram.html)
* S-expression
* [sexpParser.py](./sexpParser.py)
* rosetta code
* [rosettacode.py](./rosettacode.py) [(diagram)](./rosettacode_diagram.html)
## Domain Specific Language parsers
* adventureEngine - interactive fiction parser and game runner
* [adventureEngine.py](./adventureEngine.py) [(diagram)](./adventure_game_parser_diagram.html)
* pgn - Chess notation parser
* [pgn.py](./pgn.py)
* TAP - Test results parser
* [TAP.py](./TAP.py) [(diagram)](./TAP_diagram.html)
* EBNF - Extended Backus-Naur Format parser (and compiler to a running pyparsing parser)
* [ebnf.py](./ebnf.py) [(diagram)](./ebnf_diagram.html)
* [ebnf_number_words.py](./ebnf_number_words.py) [(diagram)](./ebnf_number_parser_diagram.html)
## Search and query language parsers
* basic search
* [searchparser.py](./searchparser.py) [demo](./searchParserAppDemo.py)
* lucene
* [lucene_grammar.py](./lucene_grammar.py) [(diagram)](./lucene_grammar_diagram.html)
* mongodb query
* [mongodb_query_expression.py](./mongodb_query_expression.py) [(diagram)](./mongodb_query_expression.html)
* SQL
* [select_parser.py](./select_parser.py) (SELECT statements)
* [sql2dot.py](./sql2dot.py) (TABLE DML statements)
* BigQuery view
* [bigquery_view_parser.py](./bigquery_view_parser.py)
## Data format parsers
* JSON
* [jsonParser.py](./jsonParser.py)
* protobuf
* [protobuf_parser.py](./protobuf_parser.py)
* stackish
* [stackish.py](./stackish.py)
* CORBA IDL
* [idlparse.py](./idlparse.py)
## Logical and arithmetic infix notation parsers and examples
* [fourFn.py](./fourFn.py)
* [simpleArith.py](./simpleArith.py)
* [eval_arith.py](./eval_arith.py)
* [simpleCalc.py](./simpleCalc.py)
* [LAparser.py](./LAparser.py) (linear algebra)
* [simpleBool.py](./simpleBool.py)
## Helpful utilities
* parse time expressions ("2pm the day after tomorrow")
* [delta_time.py](./delta_time.py) [(diagram)](./delta_time_diagram.html)
* invert regex (generate sample strings matching a regex)
* [inv_regex.py](./inv_regex.py)
* email addresses
* [email_address_parser.py](./email_address_parser.py)
* Excel cell formula
* [excel_expr.py](./excel_expr.py)
* ctypes interfaces code generator from C include.h file
* [gen_ctypes.py](./gen_ctypes.py)
* log file parsing
* [httpServerLogPaser.py](./httpServerLogPaser.py)