I want my program to replace tabs with spaces.1tab=4spaces.When i write aa(tab)aaa(tab)(tab)a(tab) it must show me aaxxaaaxxxxxaxxx. I think that my program works corectly but when a write aaa(tab)a it must show aaaxa but it is aaaxxxxxa.Please for help!!! That is my code:
#include <stdio.h>
int next_tabstop(int col) {
return(4 - col%4);
}
int main() {
int ch;
int col=0;
while((ch=fgetc(stdin))!=EOF){
if(ch=='\n'){
col=0;
fputc(ch,stdout);
} else{
col++;
if(ch!='\t'){
fputc(ch,stdout);
}else {
int sp=next_tabstop(col);
col+=sp;
while (sp>=0){
fputc('x',stdout);
sp--;
}
}
}
}
return 0;
}
Hi
Try these:
to replace tabs with spaces (1 tab = 4 spaces)
here: 1 tab = 'xxxx'
hope this helps
csn
Hi!
I'm using SunOS 5.7 w/ Bash 2.01.
Currently, I'm working on a script that will make it possible to find textfiles which match certain criteria. While I write this message, I had some brainfarts, found the answer myself :D and the question I had in mind is now no longer the question I... (3 Replies)
hi,
I have some 50 C files in which for indentation of code some devlopers used tabs, but we dont want any tab used for indentation.
I have following 2 need.
1) find tabs from all 50 files (which are in one directory )
2) replace them with 4 spaces.
Thanks
Rishi (6 Replies)
When formatting a script let's say for instance the following:
case ${choice} in
1)
vi ${tmp1}.tmp
# overwrite the tmp1 var with any user changes
cp ${tmp1}.tmp ${tmp1}
;;
... (2 Replies)
hi,
I have a file that is space separated at all columns. Basically what I want to do is replace all the space separations with column separations.
Thanks
kylle (1 Reply)
Hi All,
I am facing issues converting white spaces and tabs together in a file I am reading. Here is the command I am trying:
tr -s ' '@ | sort -t@ +1n filename
I guess the problem is that it is not converting the tabs to another delimiter. Also, I am supposed to accomplish this only using... (5 Replies)
hi buddies;
i have a file.txt:
Note: All the seperators are SPACE.
192.168.1.1
ParameterObject=1 Speech 1
ParameterObject=2 Speech 1
192.168.1.1
ParamFunction=1 UserID 1 (DEACTIVATED)
Sector=1,Device=2,Unit=3 DeviceId 1
192.168.1.1
FeederCable=2B ... (18 Replies)
Hi,
I'm looking for a command that replaces spaces/tabs with pipe symbol and store the result to the same file instead of routing it to another file.
infile
outfile
Thanks. (11 Replies)
I'm having trouble getting my vimrc to work the way I want it. For some reason after I hit enter it is creating tabs instead of spaces like I would expect. Here is an example of what I am talking about. $ = newline, ^I = tab. On the line of struct EDGETAG* q; I hit enter and it created a tab... (2 Replies)
str contains tabs and multiple spaces
str="hello world. How are you?"
I want to check string start with hello world,
and my code is:
if ]world"* ]]; then
echo "found"
else
echo "not found"
fi
Not work
Other solution may work is to replace all tabs and... (4 Replies)
Discussion started by: cmdcmd
4 Replies
LEARN ABOUT LINUX
col
COL(1) BSD General Commands Manual COL(1)NAME
col -- filter reverse line feeds from input
SYNOPSIS
col [-bfhpx] [-l num]
DESCRIPTION
The col utility filters out reverse (and half reverse) line feeds so that the output is in the correct order with only forward and half for-
ward line feeds, and replaces white-space characters with tabs where possible. This can be useful in processing the output of nroff(1) and
tbl(1).
The col utility reads from the standard input and writes to the standard output.
The options are as follows:
-b Do not output any backspaces, printing only the last character written to each column position.
-f Forward half line feeds are permitted (``fine'' mode). Normally characters printed on a half line boundary are printed on the fol-
lowing line.
-h Do not output multiple spaces instead of tabs (default).
-l num Buffer at least num lines in memory. By default, 128 lines are buffered.
-p Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input
other than those recognized and interpreted by itself, which are listed below.
-x Output multiple spaces instead of tabs.
The control sequences for carriage motion that col understands and their decimal values are listed in the following table:
ESC-7 reverse line feed (escape then 7)
ESC-8 half reverse line feed (escape then 8)
ESC-9 half forward line feed (escape then 9)
backspace moves back one column (8); ignored in the first column
carriage return (13)
newline forward line feed (10); also does carriage return
shift in shift to normal character set (15)
shift out shift to alternate character set (14)
space moves forward one column (32)
tab moves forward to next tab stop (9)
vertical tab reverse line feed (11)
All unrecognized control characters and escape sequences are discarded.
The col utility keeps track of the character set as characters are read and makes sure the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col will display a warning message.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of col as described in environ(7).
EXIT STATUS
The col utility exits 0 on success, and >0 if an error occurs.
SEE ALSO colcrt(1), expand(1), nroff(1), tbl(1)STANDARDS
The col utility conforms to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
A col command appeared in Version 6 AT&T UNIX.
BSD August 4, 2004 BSD