AbLan

in cmd use : python scanner.py filename

Abstract Language Compiler 抽象话词法分析器

Finished Work : Lexical Scanner

Emoji characters can be used as identifiers like: 🐎 = 1.14514 args = 🌶💩💉💧🐮🍺

Way to use lexical scanner:

In light of poor utf8 support in cmd and other terminals, output is printed in result.txt . ~~Type python lexical_scanner.py youTestFile in cmd and find result.txt to see the output. ~~ refer function to get result

Use LR(1)

Current Work ： Completed

runtime environment:

• python3
• django2

TODO:

~~+ in lexical scanner divide special characters into ALOP(arithmetic and logical operators) and VOP(value giving operators) alop -> + | - | * | / | > | < | >= | <= | != | == #算数逻辑运算符 双目 vop -> = | += | -= | *= | /= #赋值运算符

~~ + principles extention ~~ ~~ + django for visualization ~~