使用Lex将log日志转换为HTML HTMLF#VBVB.NETEXT
我们经常在程序里添加log， 用于在维护时查找异常发生时间和地点。通常log文件内容很多，将log文件格式化为带颜色不同字体的html可以方便阅读。
例如VB项目中log如下：
=========================================== START DBS ===========================================
DEBUG_MODE_OFF
ETC_OCX_OFF
LOG_LEVEL = 2
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBDBS114
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBDBS114\\PSBDBS11413.log
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBIMG003
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBIMG003\\PSBIMG00313.log
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBIMC104
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBIMC104\\PSBIMC10413.log
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBDBA106
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBDBA106\\PSBDBA10613.log
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
省略
=========================================== START DBS ===========================================表示一块log的开始
2006/04/12 07:59:06为log记载时间
basDBSCommon(DelLogFile)是Module（Function）
*** 開始 ***为函数调用开始；*** 終了 ***为函数调用结束
1.使用Lex加行数
非常简单，而且非常常见：
/*****************************************************************************
*
* Copyright (C) 2006 by Zhao Lei
*
*/
%{
/*
*includes
*/
#include <stdio.h>
#include <stdlib.h>
int lineno=1;
%}
LINE .*\n
%%
{LINE} { printf( "%5d %s", lineno++, yytext ); }
%%
main(){
yylex();
return 0;
}
编译运行addline.exe <PSBDBS11412.LOG >source.txt
结果如下：
1
2 =========================================== START DBS ===========================================
3 DEBUG_MODE_OFF
4 ETC_OCX_OFF
5 LOG_LEVEL = 2
6 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
7 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBDBS114
8 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
9 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBDBS114\\PSBDBS11413.log
10 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
11 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
12 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
13 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBIMG003
14 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
15 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBIMG003\\PSBIMG00313.log
16 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
17 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
18 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
19 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBIMC104
20 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
21 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBIMC104\\PSBIMC10413.log
22 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
23 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
24 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
25 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBDBA106
26 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
27 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBDBA106\\PSBDBA10613.log
28 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
29 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 終了 ***
30 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):*** 開始 ***
31 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DelLogFile):strAppName = PSBDBC110
32 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 開始 ***
33 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):strFileName = D:\logs\batch\sb\PSBDBC110\\PSBDBC11013.log
34 2006/04/12 07:59:06 -------- ------- I 1 ------- basDBSCommon(DeleteFile):*** 終了 ***
省略
2. 转换为HTML
将已加上行数的log转换为HTML的Lex如下：
/*
*includes
*/
#include <stdio.h>
#include <stdlib.h>
int section=1;
%}
LINE \n
TITLELINE .*("=")+(" ")+START(" ")+.+(" ")+("=")+
DIGITAL [0-9]
LEVEL [0-9]
TIME 200[0-9]"/"[0-1][0-9]"/"[0-1][0-9]" "[0-2][0-9]":"[0-5][0-9]":"[0-5][0-9] //时间的正则表达式
LOG_LEVEL .*LOG_LEVEL" ""="" "{LEVEL}
MESSAGE I|W|E
TRUE "True"
FALSE "False"
FUNCTION "(".+")"
START "*** ŠJŽn ***"
END "*** I—¹ ***"
STAT "***".+"***"
ERROR ."★★★ ERROR ★★★"|"★★★★★ 異常終了 ★★★★★"
MENUS "-""-"+
ONE " "+1" "+
OTHERS .*
SIMPLE {TIME}{MENUS}{MESSAGE}{ONE}{OTHERS}{FUNCTION}":"
%%
{TITLELINE} { printf("</div><p></p><div style=\"background-color: #CCFFFF; layer-background-color: #CCFFFF; border: 1px none #000000;\"><p>section:<b>%d</b></p>",section++);}
{MENUS} { printf("");}
{ERROR} { printf("<font color=\"#FF0000\">"); ECHO;printf("</font>");}
{DIGITAL} { printf("<font color=\"#0033FF\">"); ECHO; printf("</font>");}
{TIME} { printf("<em>"); ECHO; printf("</em>");}
{LINE} { ECHO; printf("<br>");}
{TRUE}|{FALSE} { printf("<font color=\"#FF0099\">"); ECHO; printf("</font>");}
{FUNCTION} { printf("<b>"); ECHO; printf("</b>");}
{STAT} { printf("<b><font color=\"#00FF00\">"); ECHO; printf("</font></b>");}
%%
main(void){
printf("<html><body>\n");
yylex();
printf("\n</html></body>");
return 0;
}
编译后，运行：
DBSLog.exe < source.txt > dest.htm
dest.htm显示如下图：
<shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><stroke joinstyle="miter"></stroke><formulas><f eqn="if lineDrawn pixelLineWidth 0"></f><f eqn="sum @0 1 0"></f><f eqn="sum 0 0 @1"></f><f eqn="prod @2 1 2"></f><f eqn="prod @3 21600 pixelWidth"></f><f eqn="prod @3 21600 pixelHeight"></f><f eqn="sum @0 0 1"></f><f eqn="prod @6 1 2"></f><f eqn="prod @7 21600 pixelWidth"></f><f eqn="sum @8 21600 0"></f><f eqn="prod @7 21600 pixelHeight"></f><f eqn="sum @10 21600 0"></f></formulas><path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></path><lock aspectratio="t" v:ext="edit"></lock></shapetype><shape id="_x0000_i1025" style="WIDTH: 24pt; HEIGHT: 24pt" alt="" type="#_x0000_t75"><img alt="" src="http://blog.csdn.net/images/blog_csdn_net/tyrone1979/lex1.gif"></shape>