I have problem with batch replacing a text file

example: a file name :"first .txt" has the following text

A 1
B 2
C 3

another file "second .txt" has the following text
"r if this is your first time here, and if you wish to include example C++ code in your posts and messages, please surround your example codes"

task is where ever "a" is there it should repalce with 1 and "b" is there should replace with 2

can any body help in this

Yes we could 'help'. Instead starting off by working with the two files,
why not just declare the replacement 'source' characters:
char A, B, C;
A = '1';
B = '2';
C = '3';

Then fopen() the file for reading and writing,
read along char by char,
replace the target characters with source characters,
fclose() the file,
exit.

Then add the 'working with a source file'.
Where in this process do you have trouble? We start there!
Post the code if you have any started. That helps us to see your thinking on this.
Try searching the forum for previous examples. Keywords might be 'reading file' or 'fopen' etc.
Howard;

Do you want to assume that 'A' and 'a' both are to be replaced with a '1'?

If so, do you expect that the input file for the substitution list is complete and includes all of the letters in the (Roman/Latin1) alphabet? Are we supposed to only replace those characters that are found in the substitution list?

Can we assume that a maximum of 26 characters are going to be substituted or shall we expect 52 (lowercase and uppercase) or 36/62 (includes 0-9)?


:davis: