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Lex Bell Laboratories of the United States with C language developed by a lexica...
Lex是美国Bell实验室用C语言研制的一个词法分析程序自生成工具。它的基本原理就是使用正则表达式扫描匹配文本,并为每一个匹配模式定义一些操作,当用C语言作宿主语言时,这些操作都由C语言实现。一种匹配的正则表达式可能会包含相关的动作。这一动作可能还包括返回一个标记。当 Lex 接收到文件或文本形式的输入时,它试图将文本与正则表达式进行匹配。它一次读入一个输入字符,直到找到一个匹配的模式。如果能够找到一个匹配的模式,Lex 就执行相关的动作(可能包括返回一个标记)。-Lex Bell Laboratories of the United States with C language developed by a lexical analysis tool generated from the process. Its fundamental principle is to use a regular expression matching text scanning, and for every definition of a matching model for operation, when the C language of the host language, these operators by C language. A match of which is likely to contain expressions related to the moves. This action may also include the return of a marker. When Lex reception of the document or text input, it is trying to text and is a regular expression matching. It read an input into the characters, until they found a matching pattern. If they can find a matching model, Lex on the implementation of the action (which may include a return of markings).
- 2022-02-09 15:55:49下载
- 积分:1
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用javaBean和jsp开发的一个能够实现网站计数器功能的源程序 并有一个完整的网站...
用javaBean和jsp开发的一个能够实现网站计数器功能的源程序 并有一个完整的网站-JavaBean and jsp with the development of a counter function to achieve the source site and a complete site
- 2022-08-23 21:12:43下载
- 积分:1
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JSCRIPTRSA算法
JSCRIPTRSA算法-JSCRIPTRSA Algorithm
- 2022-03-13 04:59:49下载
- 积分:1
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异常处理的一个类
异常处理的一个类-Exceptions to the one category
- 2022-02-28 18:46:05下载
- 积分:1
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PrintPreviewDialog
java 打印预览功能,java 打印预览功能-PrintPreviewDialog
- 2022-02-09 16:19:49下载
- 积分:1
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金融中的计算,一个算法的实现,具体叫什么我也不清楚,帮朋友做的...
金融中的计算,一个算法的实现,具体叫什么我也不清楚,帮朋友做的-the financial terms, the algorithm to achieve a specific, what is not clear to me, do for a friend
- 2022-01-22 06:41:46下载
- 积分:1
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非常有影响的 j道 论 坛 源码 国外很有明的专家编写的 ....对java爱好者很有参考价值...
非常有影响的 j道 论 坛 源码 国外很有明的专家编写的 ....对java爱好者很有参考价值-jivejon
- 2022-07-01 05:02:13下载
- 积分:1
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很经典的POST例子,上传上来看看,希望有用
很经典的POST例子,上传上来看看,希望有用-classic POST example, look at upload onto the hope that useful
- 2023-07-04 17:20:02下载
- 积分:1
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jsp prepared with the message if you jsp beginners downloaded properly examined...
用jsp编写的留言本 如果您是jsp初学者下载下来好好研究 相信有不少的提高 包括表结构,留言管理等内容,注释详细-jsp prepared with the message if you jsp beginners downloaded properly examined believe that many forms including raising the structure, message management, detailed Notes
- 2023-05-31 07:45:04下载
- 积分:1
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jcrontab是一个定时器开源项目包 目前提供存取文件或数据库, 把执行结果寄发 email, 简单地设置在 Tomcat, Resin, Jetty 及 J...
jcrontab是一个定时器开源项目包 目前提供存取文件或数据库, 把执行结果寄发 email, 简单地设置在 Tomcat, Resin, Jetty 及 JBoss 之上, 更是可以取代 cron 单独去执行, 也提供了良好的效能-jcrontab timer is a package of open source projects currently provided access to documents or databases, the implementation of the results send email, simple to install in Tomcat, Resin, Jetty and JBoss, nor can replace cron alone enforce, but also provided a good performance
- 2022-03-10 05:42:14下载
- 积分:1