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Binary Functions
- !!Processing Templates Files with BinaryTag - Insider Tech Notes
- Binary Sort Two Different Fields
- BinaryPeek versus BinaryPeekStr
- BinaryPoke and Bit Swapping Discussion
- BinaryRead File Line by Line
- BinaryReplace With NULL Characters
- BinarySort Considerations
- BinarySort Example
- BinaryXlate Explanation
- Convert to UTF-8
- Could Not Allocate Binary Buffer Error
- Create Zero Length Binary Value
- CryptAcquireContext Gets a Handle to a Key Container within a CSP
- Example of Keeping Track of Multiple Pointers
- Extract Line 79 from a File
- Insert a Delimiter Every 5 Chars
- Nested Binary Sort
- Offset beyond binary EOD
- Parsing Dilemma
- Remove Line from File that Contains a string
- Remove Line from File
- Replace First Instance of a String in a File
- Retrieve last line from a File
- Search and Replace Another Example
- Search and Replace in Binary Buffer
- Splitting Registry Binary Entry for Writing to INI File
- System Ini writing multiple device lines to
- System.Ini and Device lines
- Use Binary Functions to Edit INI Files
- Use BinaryRead Like FileRead
- Using BinaryPeek to Find Null 00 Character
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How to Remove a Line from a File using Binary Functions
Keywords: remove a line binary
Question:
Due to some extensive problems with our proxy server, I need to remove a line from the company's prefs.js file for Netscape. This si what I have built so far, and it being a Monday, can't seem to figure out how to re-write the file without the offending line. Perhaps a little Martinesque light could be shed? (uh-oh, being reading too many Gary Whatcott posts again.. ;o) )
BoxOpen("Netscape Update","Searching")
AddExtender("wsrch34I.dll")
file="prefs.js"
hand=srchInit("C:\",file,"","",16)
while 1
a=srchNext(hand)
if a=="" then break
Buffer=BinaryAlloc(50000); more than enough for 7k file
Line=BinaryIndexNc(Buffer,0,'user_pref("network.proxy.type", 1)',@FWDSCAN)
; gotta remove that line!!! and re-write the file...
; I hate mondays, my brain is not working today...
endwhile
srchFree(hand)
exit
Answer:
UNDEBUGGED !!
Buffer=BinaryAlloc(50000); more than enough for 7k file
outbuf=BinaryAlloc(50000)
userpref=BinaryIndexNc(Buffer,0,'user_pref("network.proxy.type", 1)',@FWDSCAN)
BinaryCopy(outbuf,0,Buffer,0,userpref)
cuthere=BinaryIndexNC(Buffer,userpref,@CRLF,@FWDSCAN)+2
a=BinaryEODGet(outbuf)
b=BinaryEODGet(Buffer)
BinaryCopy(outbuf,a,Buffer,cuthere,b-cuthere)
BinaryWrite(outbuf,"TEST.XXX")
BinaryFree(outbuf)
BinaryFree(buffer)
Article ID: W12733
Filename: Remove Line from File.txt
File Created: 2001:03:01:15:00:58
Last Updated: 2001:03:01:15:00:58