How to replace a line in a file with a range of lines found after the replacement line using Perl. Thanks in advance,

My code is in C++.

Hi, Can anyone please help me fix the issue of video display hanging on Windows? The issue occurs after both manual and automatic locking of Windows. When I unlock, the video display hangs, but sound is heard and video packets are sent and recieved properly(confirmed from wireshark) Code works completely fine on Linux. Thanks in advance, Faez

while(fgets(buffer,MAX_LEN_SINGLE_LINE+2,fp1))
{
buff_ptr = buffer;
strcpy(buffer2,buffer);
//Remove Spaces from start for comparision
i = 0;
while( i++ < strlen(buffer))
{
if(isspace(buffer[i]))
continue;
strcpy(buffer2,&(buffer[i]));
break;
}
if(strncmp(buffer2,"READ",4) == 0)
{
found = true;
sprintf(buffer1,"# %s",buffer);
fputs(buffer1,fp2);
}
else if(found == false)
{
fputs(buffer,fp2);
}
else
{
sprintf(buffer1,"# %s",buffer);
fputs(buffer1,fp2);
// Search if "." is found.
if(strstr(buffer,".") != NULL)
found = false;
}
}

Alot of thanks to Chandrakantt also in helping me in this one..

It's working great now .. :-D Thnx alot for help

Nothing helped... Tried alot of trial and error but the o/p refuses to roll out as expected.. :^)

There are no changes in the new file at all :| Also, there are multiple instance of READ such as END-READ etc whose line should not be precceded with # I aint understanding how the current file pointer can be incremented till a "\n" or "." :confused:

I shall henceforth post the code instantly while asking a new question next time:) BTW here is my code and I think am lost... :sigh:

#include #include #define MAX_LEN_SINGLE_LINE 120
#define bufsize 1024

int main()
{

 char fileOrig\[32\] = "test.txt";
 char fileRepl\[32\] = "myReplacedFile.txt";

 const char text2find\[80\] = " READ ";
 const char text2repl\[80\] = "# READ ";
 int c, line=0;

    char buffer\[MAX\_LEN\_SINGLE\_LINE+2\];
    char \*buff\_ptr, \*find\_ptr, \*tok;
    FILE \*fp1, \*fp2;
    size\_t find\_len = strlen(text2find);

    fp1 = fopen(fileOrig,"r+");
    fp2 = fopen(fileRepl,"w+");
    int i;


    while(fgets(buffer,MAX\_LEN\_SINGLE\_LINE+2,fp1))
    {
        buff\_ptr = buffer;

       	while ((find\_ptr = strstr(buff\_ptr,text2find)))
       	{
       		while ((c = fgetc(fp1)) == '.')
       		{
       			if (c == '\\n')
       				fputc("#",fp2);
       			else ;
       		}

        		while(buff\_ptr < find\_ptr)
                fputc((int)\*buff\_ptr++,fp2);

        	fputs(text2repl,fp2);

            buff\_ptr += find\_len;

        }
        	fputs(buff\_ptr,fp2);

    }



   fclose(fp2);
   fclose(fp1);
   return 0;

}

Thanks in advance, Faez

Need to code it in C :)

Hi, Is there a built-in string function to insert a # to all the lines which starts with string READ and ends with .(period) Eg:abc.txt

asadf
sdf
READ abc asdj ads //This lines needs to be preeded with #
asdkl asdj //This lines needs to be preeded with #
djshf . //This lines needs to be preeded with #

EOF

followed by substituion of a string.. Thanks in advance

That worked :-) BTW I came up another method as below

system("copy input/*.txt "); // This line copies all the text files to pwd

/* After manipulations with all the required files.... */

system("del *.txt");

Anyways, thanks for the nice logic :) Regards, Faez

Hi, I have an array of strings which contains the file names and I call a function in a loop.

char myFiles [20][50];

for(i=0;i<20;i++)
myFunc( myFiles[i]);

The challenge I am facing is that, I have to store all the files in a directory, say "input" folder.... and then call

myFunc( myFiles[i]);

which I am unable to do. I used

mkdir("input");

to create a directory and move all my files into it also using

system("move *gen.txt input");

But now if I give that path in my function it has to be hardcoded which eventually cannot be run in a loop. ie

for(i=0;i<=20;i++)
myFunc("C:\\input\\myFiles[i]"); //which is not possible....

I am using eclipse IDE. Thanks in advance, Faez

Sample File to be parsed and replace different strings..

*************************************************************************
* API TEMPLATE PROGRAM *
* THIS PROGRAM SERVES AS A TEMPLATE TO GENERATE THE ACTUAL API PROGRAM *
* *
* MAPPING RULES: *
* -------------------------------------------------------------------- *
* Variable Name Replace with *
* -------------------------------------------------------------------- *
* &apiname API Name from Mapping Repository *
* &dclgen DCLGEN name from Mapping Repository *
* &keyinfo Key field column name from file layout *
* &hostvarprimary Key field host var name from DCLGEN *
* &tablecols Table column name from DCLGEN *
* &tablehostvars Host variable names from DCLGEN *
* &tblprimary Key field column name from DCLGEN *
* &tablehostvars01 01 level of host var from DCLGEN *
*************************************************************************
/* strings to be replaced if present in the above block should be ignored */
IDENTIFICATION DIVISION.
PROGRAM-ID. &apiname. /* &apiname string shud be replaced with another string */

   		EXEC SQL
		INCLUDE &dclgen
	END-EXEC.
   
	EXEC SQL
		INCLUDE SQLCA
	END-EXEC.
   
 	   2100-SELECT-PARA.
		MOVE &keyinfo TO &hostvarprimary
		EXEC SQL
			SELECT &tablecols /\* &tablecols to be replaced with another string \*/
				INTO
				&tablehostvars /\*&tablehostvars to be replaced with another string \*/


				FROM &tblname
				WHERE
				&tblprimary = &hostvarprimary
		END-EXEC
		IF SQL-CODE EQUAL ZERO
			SET FUNC-SUCCESS	TO TRUE
			MOVE &tablehostvars01 TO VSAM-REC-BLOCK
		ELSE
			PERFORM 9999-ABEND-PARA
		END-IF.
   2100-SELECT-PARA-EXIT. EXIT.

   2200-INSERT-PARA.
		MOVE VSAM-REC-BLOCK TO &tablehostvars01 /\* This &tablehostvars01 string SHOULD NOT be replaced.. \*/
		EXEC SQL
			INSERT INTO &tblname
			(
			&tablecols
			)
			VALUES
			(
			&tablehostvars
			)
		END-EXEC
		IF SQL-CODE EQUAL ZERO
			SET FUNC-SUCCESS	TO TRUE
		ELSE
			PERFORM 9999-ABEND-PARA
		END-IF.
   2200-INSERT-PARA-EXIT. EXIT.	   
		
   2300-UPDATE-PARA.
		MOVE VSAM-REC-BLOCK TO &tablehostvars01 /\* shud not be replaced \*/
		EXEC SQL

I thought rewind will help me during the reuse of the file.. :~ The replace function doesnot check for the entire string :^) I mean.. it replaces all the strings like &tabhostvars and &tabhostvars01 (I do not want this string to be replaced..) I only want &tabhostvars strings to be replaced Can I do this..?? #vaguequestionButlearning :)

while ((find_ptr = strstr(buff_ptr,text2find)) && find_ptr+find_len+1 == NULL)

Thanks, Faez

Hi, I have a replace function which replaces all the occurences of the string into another file. But when I use the replace function multiple times... it replaces the string which was passed in the last call only and all the previous replacement does not happen. Below is the code

replace(char text2find[80],char text2repl[80])
{

    char fileOrig\[32\] = "OrigFile.txt";
char fileRepl\[32\] = "ReplacedFile.txt";
   
    char buffer\[MAX\_LEN\_SINGLE\_LINE+2\];
char \*buff\_ptr, \*find\_ptr, \*tok;
FILE \*fp1, \*fp2;
size\_t find\_len = strlen(text2find);

fp1 = fopen(fileOrig,"r");
fp2 = fopen(fileRepl,"w+");


while(fgets(buffer,MAX\_LEN\_SINGLE\_LINE+2,fp1))
    {
        buff\_ptr = buffer;
        tok = strtok(buff\_ptr,"\*");//ignores the string occurence after \*
      if(tok != NULL)
       {
        	while ((find\_ptr = strstr(buff\_ptr,text2find)))
        	{

        		while(buff\_ptr < find\_ptr)
                fputc((int)\*buff\_ptr++,fp2);

        	fputs(text2repl,fp2);

            buff\_ptr += find\_len;

        	}
        	fputs(buff\_ptr,fp2);
       }
    }
    rewind(fp1);
    rewind(fp2);
    fclose(fp2);
    fclose(fp1);

}

I wud actually wanto replace all the string in the same file, but am finding it tough and also reuse of the replace function multiple times wud be difficult. Hence went with two files... Thanks, Faez

Finally I have come up witha Not-so-good code... But it works.. :) I created another similar situation to parse from END-EXEC to End of File as below...

if (k == 0)
{
if (strcmp(tok, "END-EXEC") == 0)
k = 1;
}
else
{
if (strcmp(tok, "THE") == 0)
{
k = 0;
}
else
{
strcpy(tabRow[m],tok);m++;
fprintf(fp3,"Token: %s\n", tok);

       }

}
}
}
// Out of all the loops and condition now....

j=0,n=0;
for(j=0;j<=m;j++)
{
	if(strcmp(tabCol\[n\],tabRow\[j\])==0)
	{
		k=j;
		strcpy(tabRow\[n\],tabRow\[k+1\]);
		n++;
	}
	else ;


}
for(k=0;k

It wud be nice to get ur comments on this... :-D

Thanks,
Faez

No no... It ain't always preceeded with "CN-" string ... The strings which needs to be stored in TabRow array are followed by the second occurrence of each tableCol values... Initially I also thought of using strcat () and append CN- to the tabCol values... But den I realized that it was for this file only... Other files are completely different. Regards, Faez

That code was a beauty again .... :-D Actually... the final file after strtok() looks like the one below... :|

Token: DCLGEN
Token: LIBRARY
Token: ACTION
Token: LANGUAGE
Token: NAMES
Token: QUOTE
Token: COLSUFFIX
Token: IS
Token: EXEC
Token: POLICY_NO
Token: REG_NO
Token: EFFECTIVE_DATE
Token: EXPIRY_DATE
Token: CAN_EFF_DATE
Token: CAN_PRO_DATE
Token: RETURN_PREMIUM
Token: CAN_PROCESSED
Token: END-EXEC
Token: COBOL
Token: DCLCANCL
Token: POLICY_NO
Token: CN-POLICY-NO //I need this string too in diff array name tableRow[6][10]
Token: REG_NO
Token: CN-REG-NO //I need this string too in diff array name tableRow[6][10]
Token: EFFECTIVE_DATE
Token: CN-EFFECTIVE-DATE //I need this string too in diff array name tableRow[6][10]
Token: EXPIRY_DATE
Token: CN-EXPIRY-DATE //I need this string too in diff array name tableRow[6][10]
Token: CAN_EFF_DATE
Token: CN-CAN-EFF-DATE //I need this string too in diff array name tableRow[6][10]
Token: CAN_PRO_DATE
Token: CN-CAN-PRO-DATE //I need this string too in diff array name tableRow[6][10]
Token: RETURN_PREMIUM
Token: CN-RETURN-PREMIUM //I need this string too in diff array name tableRow[6][10]
Token: CAN_PROCESSED
Token: CN-CAN-PROCESSED //I need this string too in diff array name tableRow[6][10]
Token: THE

Your code cleverly extracted the strings within EXEC and END-EXEC which I stored in

char tableCol[6][10]

But now I am finding it really difficult to store the strings which are immediatedly followed by the "tabCol" string from the file... :( ie CN-POLICY-NO, CN-REG-NO, CN-EFFECTIVE-DATE, CN-EXPIRY-DATE, CN-CAN-EFF-DATE, CN-CAN-PRO-DATE, CN-RETURN-PREMIUM & CN-CAN-PROCESSED which are to be stored in

char tableRow[6][10]

Apologies ...:( Thanks a ton, Faez

Lovely..! This program works like a charm....:-D But now I am getting some extra unwanted strings too till the point I wanto extract the needed string.. My new o/p file now look like Token: DCLGEN Token: LIBRARY Token: ACTION Token: LANGUAGE Token: NAMES Token: QUOTE Token: COLSUFFIX Token: IS Token: EXEC Token: POLICY_NO Token: REG_NO Token: EFFECTIVE_DATE Token: EXPIRY_DATE Token: CAN_EFF_DATE Token: CAN_PRO_DATE Token: RETURN_PREMIUM Token: CAN_PROCESSED Token: END-EXEC But I want the strings only after EXEC and before END-EXEC... ie from POLICY_NO to CAN_PROCESSED... I tried using

while(strcmp("EXEC",tok))

but it ain't working .. :-/ Thanks in advance, Faez

int main()
{
char *buf[1024], *tok;
FILE *fp1, *fp2;
fp1=fopen("test.txt","r+");
fp2=fopen("newtest.txt","w+");

while(fgets(buf, bufsize, fp1) != NULL)
{
for(tok = strtok(buf,"{");tok !="}";)
{
fprintf(fp2, "%s",buf);
}
}
fclose(fp2);
fclose(fp1);
}