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Delphi add BOM to files

Posted on 2014-04-23
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Last Modified: 2014-06-15
I want to add a utf8 bom to files that don't have it.

(ie 0xEF,0xBB,0xBF  in the beginning)

Can someone give me some code to check the 3 first bytes of a file and insert the bom if missing?
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Question by:pucko73
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6 Comments
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40019352
Why?  It's not recommended for files for the web.
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Author Comment

by:pucko73
ID: 40019364
Tell that to the people that made the "parsing in the receiving application"  and that read all files without BOM as ANSI encoded.
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LVL 83

Accepted Solution

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Dave Baldwin earned 500 total points
ID: 40019377
Ok, good reason.  I don't have the actual code to give you.  You need to open the files in binary mode and read those first bytes.  If they're not there, then you put them in the write buffer and read the rest of the file into it after them as basically a file copy routine.  Then write the file out, usually under a temp name, close the files delete the original, and rename the new version.
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Expert Comment

by:sepidehdam
ID: 40114349
Help to guide delphi 7
"ALTER TABLE add column.
By coding with Delphi 7
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Expert Comment

by:sepidehdam
ID: 40114411
Help to guide delphi 7
"ALTER TABLE add column.
By coding with Delphi 7
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Author Comment

by:pucko73
ID: 40136264
???
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