随笔分类 -  Flex_Bison

Flex and GNU Bison
Bison 命名位置
摘要：expr_1: IDENT /*yystack index 2*/ "=" /*yystack index 1*/ expr_1 /*yystack index 0*/ { $$ = new VarAssignAst($1, token::EQ, $3); } 阅读全文
posted @ 2021-06-08 11:09 Ajanuw 阅读(58) 评论(0) 推荐(0)
Bison matching list
摘要：words demo lexer.l: %option noyywrap noline %{ #include <iostream> #include "parser.h" #define YY_DECL yy::parser::symbol_type yylex() #define yytermi 阅读全文
posted @ 2021-06-06 11:46 Ajanuw 阅读(81) 评论(0) 推荐(0)
Flex 替换输入的字符串
摘要：#include <iostream> #include "lexer.h" #define yylex aaslex #define yy_scan_string aas_scan_string #define yy_delete_buffer aas_delete_buffer extern c 阅读全文
posted @ 2021-06-04 11:05 Ajanuw 阅读(51) 评论(0) 推荐(0)
Flex 将输入设置为内存字符串
摘要：#include <iostream> #include "lexer.h" #define yylex aaslex #define yy_scan_string aas_scan_string #define yy_delete_buffer aas_delete_buffer int main 阅读全文
posted @ 2021-06-04 08:20 Ajanuw 阅读(110) 评论(0) 推荐(0)
Flex and Bison in vscode
摘要：tasks.json { // See https://go.microsoft.com/fwlink/?LinkId=733558 // for the documentation about the tasks.json format "version": "2.0.0", "tasks": [ 阅读全文
posted @ 2021-05-17 17:27 Ajanuw 阅读(326) 评论(0) 推荐(0)
Flex BEGIN 条件激活规则
摘要：test.l: %option noyywrap noline %{ #include <iostream> %} %x textSpan str %% "$" { BEGIN(textSpan); } \" { printf("string:"); BEGIN(str); } <textSpan> 阅读全文
posted @ 2021-05-17 16:40 Ajanuw 阅读(288) 评论(0) 推荐(0)
Flex and Bison in vs2019
摘要：新建c++控制台项目 添加筛选器文件夹 "FlexBison"和"Generator Files" 在"FlexBison"下创建"lexer.l"和"parser.y"文件 右键"lexer.l"属性 命令行: win_flex --wincompat -o %(Filename).cc %(Id 阅读全文
posted @ 2021-05-17 15:52 Ajanuw