Update composer.json
Update composer.json
Translated German comments to English
Update README.md
Translated German comments to English
Merge branch 'master' of git://github.com/pmishev/php-shunting-yard
Handle 'null' values in formula as well
Add support for defining custom operator handler functions
minor bugfixes
Made all unary operators on NULL to return again NULL
Return NULL when empty formula is given
Now supports "Less than", "Greater than", "Less than or Equal", "Greater than or Equal", "Equal" and "No Equal" as well as "AND", "OR" and "XOR", ( > , < , >= , <= , = , <> , >< , & , | )
Now supports "Less than", "Greater than", "Less than or Equal", "Greater than or Equal", "Equal" and "No Equal" as well as "AND", "OR" and "XOR", ( > , < , >= , <= , = , <> , >< , & , | )
read me updated
read me updated
Fixed issues from merge of https://github.com/andig/php-shunting-yard/pull/2