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(./) 输入单个数字测试程序通过 ||<#00FF00>输入单个数字测试程序通过||
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(./) 输入1+2 Pass

(./) 输入单个数字 Failed		 ||<#00FF00>输入1+2 Pass||
||<#FF0000>输入单个数字 Failed||
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{{{
     <expression> ::= <term> [<addop> <term>]*
}}}

Parse和Translate数学表达式

希望看到的产出：一系列执行期望动作的汇编语句

目标表达式

x = 2*y + 3/(4*z)

single digits

将expression定义为single digit并输出解析它的汇编语句

输入单个数字测试程序通过

binary expressions

将expression扩展为二元表达式并输出相应汇编语句. 

                         1+2
     or                  4-3
     or, in general, <term> +/- <term>

输入1+2 Pass

输入单个数字 Failed

general expressions

     <expression> ::= <term> [<addop> <term>]*

compiler/Let's build a compiler/ch2 (last edited 2021-02-15 18:05:22 by zbjxb)