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auditory
Guest
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 Posted: Wed Oct 18, 2006 9:10 am Post subject: how to put tab characters into ostream? |
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i am working with the program which generates
c language source code.
i implemented function adding indentation tabs to each line like
std::string tabcharcter(int depth)
{
string tab;
for(int i=0;i<depth;i++) tab+="\t";
return tab;
}
in some function
{
....
ostream os;
while(..)
{
os << tabcharcter(3);
os << string_line << endl;
}
....
}
is there any better way for this?
like some output manipulater, or,
automatic way to add n tabs after new line character added. |
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Earl Purple
Guest
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| Posted: Wed Oct 18, 2006 9:10 am Post subject: Re: how to put tab characters into ostream? |
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auditory wrote:
| Quote: | i am working with the program which generates
c language source code.
i implemented function adding indentation tabs to each line like
std::string tabcharcter(int depth)
{
string tab;
for(int i=0;i<depth;i++) tab+="\t";
return tab;
}
|
There is no need for your tabcharacter function as you can create a
string with its constructor that takes a size and a character. Note it
takes the size first.
| Quote: | in some function
{
...
ostream os;
while(..)
{
os << tabcharcter(3);
os << string_line << endl;
}
...
}
is there any better way for this?
like some output manipulater, or,
automatic way to add n tabs after new line character added.
|
I don't know what is string_line but if you are iterating through
vector<string> then you can make use of ostream_iterator's delimiter
something in the nature of:
std::string delim( len, '\t' );
std::copy
(
lines.begin(), lines,end(),
std::ostream_iterator< std::string >( os, delim.c_str() )
); |
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