新编译原理词法分析器

此为一编译原理的课程设计大纲，在里面可以根据大纲的要求编写相应的代码-this as a compiler theory of curriculum design outline, the outline can be inside prepared at the request of the corresponding code

词法分析程序，可对以下的C源程序进行分析：main() {int a[12] ,sum for(i=1 i=1 j--){ if(i==j&&i+j==13)sum+=a[i][j] } } printf("%c",sum) }-lexical analysis procedures, right below the C source code analysis : main () (int a [12] [12], the sum for (i = 1 ilt; I = 12) (for (j = 1 JLT; J = 12) Scanf ( "% d", a [i] [j])) for (i = 12 IGT; a = i--) (for (j = 12 IGT; = 1 j--) (if (i == ji j == 13) sum = a [i] [j])) printf ( "% c", sum

Full support for extended regular expressions (those with intersection and complement); Support for some kinds of cycles in grammar; DFA-based operation; Unicode support; C++ only, requires a modern compiler; Lexical analyzers can be configured to get symbols from any input class (built-in support for std::istream, std::wistream and FILE *); Designed to work with Whale, but can work standalone or interface to other parsers.-Full support for extended regular expressions (those with intersection and complement); Support for some kinds of cycles in grammar; DFA-based operation; Unicode support; C only, requires a modern compiler; Lexical analyzers can be configured to get symbols from any input class (built-in support for std::istream, std::wistream and FILE*); Designed to work with Whale, but can work standalone or interface to other parsers.

录入合法的LL(1)文法，将输出LL(1)预测分析表- Inputs legitimate LL (1) the grammar, will output LL (1) to forecast the analytical table

公式编辑器，类似word里的数学公式3.0，不过主要处理上标下标-Equation Editor, similar to the word inside the mathematical formula 3.0, however, dealt mainly with superscript subscript

预测分析法实现的语法分析器 -Forecast and Analysis Method syntax analyzer Forecast and Analysis Method of Grammar Analyzer Forecast and Analysis Method syntax analyzer

HIGHLIGHT TRUE #define NOHIGHLIGHT FALSE #define UPDATE TRUE #define NOUPDATE FALSE #define FORMAT TRUE #define NOFORMAT FALSE #define LEFT 0-HIGHLIGHT# define NOHIGHLIGHT TRUE FALSE UPDATE# define TRUE## define FALSE de NOUPDATE fine FORMAT# define TRUE FALSE# defin NOFORMAT e LEFT 0

一个词法分析器程序- A morphology analyzer procedure

本程序用于自顶向下的语法分析。只您输入的上下问无关文法进行分析，并构造出预测分析表。-procedure for the top-down syntax analysis. Only you enter the ministry asked not grammar analysis and structural analysis projected table.

系统地讲述了计算机语言的编译原理。如：编译器、词法分析、文法等-Systematically about the principles of computer language compiler. Such as: compiler, lexical analysis, grammar, etc.