SlimIt

SlimIt is a JavaScript minifier written in Python. The project compiles JavaScript into more compact code so that it downloads and runs faster.

Using lexer in your project

>>> from slimit.lexer import Lexer
>>> lexer = Lexer()
>>> lexer.input('a = 1;')
>>> for token in lexer:
... print token
...
LexToken(ID,'a',1,0)
LexToken(EQ,'=',1,2)
LexToken(NUMBER,'1',1,4)
LexToken(SEMI,';',1,5)

You can get one token at a time using token method:

>>> lexer.input('a = 1;')
>>> while True:
... token = lexer.token()
... if not token:
... break
... print token
...
LexToken(ID,'a',1,0)
LexToken(EQ,'=',1,2)
LexToken(NUMBER,'1',1,4)
LexToken(SEMI,';',1,5)

LexToken instance has different attributes:

>>> lexer.input('a = 1;')
>>> token = lexer.token()
>>> token.type, token.value, token.lineno, token.lexpos
('ID', 'a', 1, 0)

Installation:

Using pip:

sudo pip install slimit

Using easy_install:

sudo easy_install slimit

What is new in this release:

• Bug fix: https://github.com/rspivak/slimit/pull/45 Fix syntax error in the output of for statement with some form of expressions

What is new in version 0.7.4:

• Bug fix: https://github.com/rspivak/slimit/issues/34 'class' is reserved keyword now

What is new in version 0.7.3:

• Bug fix (unary op in FOR init): https://github.com/rspivak/slimit/pull/33

What is new in version 0.7.2:

• Added support for get/set properties: https://github.com/rspivak/slimit/issues/32

What is new in version 0.7.1:

• Function call support in FOR init section: https://github.com/rspivak/slimit/pull/31

What is new in version 0.7:

• Multiline string support: https://github.com/rspivak/slimit/issues/24

What is new in version 0.6.1:

• Added command-line option -t/--mangle-toplevel to turn on global scope name mangling. As of this version it's off by default: https://github.com/rspivak/slimit/issues/27
• Removed dependency on a 'distribute' package
• Bug fix: https://github.com/rspivak/slimit/issues/26
• Bug fix: https://github.com/rspivak/slimit/issues/25

What is new in version 0.6:

• Added optimization: foo["bar"] ==> foo.bar
• Added base class for custom AST node visitors
• Documentation updates
• Bug fix: https://github.com/rspivak/slimit/issues/22
• Bug fix: https://github.com/rspivak/slimit/issues/21

What is new in version 0.5.5:

• Bugfix: https://github.com/rspivak/slimit/issues/7

Requirements:

• Python