matlab textreads has a "commentstyle" option
where all lines starting with a "#" or "%" or "//"
are commented out when flag is set to "matlab"
or "shell" or "c++" resp. this should be simple to implement.
I gave a try (see patch below) but haven't succeed so far.
textread.cc uses classes and I am not familiar with this type of
programming. may I ask real C++ programmers in this forum
to help me solving this problem?
with the patch below, the lines that start with # are
ignored. the output structure has the right number of
rows but they are all empty :-(
eric
PS: a test example
textread("file.txt","%d %d %d")
http://www.nabble.com/file/p25803121/file.txt file.txt
diff -c old/textread.cc new/textread.cc
*** old/textread.cc 2009-10-08 16:12:30.000000000 +0200
--- new/textread.cc 2009-10-08 16:12:59.000000000 +0200
***************
*** 94,99 ****
--- 94,100 ----
while (!tmpdata.eof()) {
tmpdata.getline(buf, BUFFER_SIZE);
if (_lines < headerlines || std::string(buf).length() != 0) {
+ if (std::string(buf)[0] != '#')
_lines++;
}
}
***************
*** 130,140 ****
void
readline()
{
! data.getline(buffer, BUFFER_SIZE,'#');
! if (std::string(buffer).length() != 0) {
line.str(buffer);
line.clear();
! }
}
bool
--- 131,144 ----
void
readline()
{
! data.getline(buffer, BUFFER_SIZE);
!
! if (std::string(buffer).length() != 0)
! if (std::string(buffer)[0] != '#') {
line.str(buffer);
line.clear();
! }
!
}
bool
***************
*** 224,229 ****
--- 228,234 ----
std::string filename = args(0).string_value();
std::string format = args(1).string_value();
+ std::string commentstyle = "";
unsigned int headerlines = 0;
int repeat = 0;
***************
*** 241,246 ****
--- 246,253 ----
if (prop == "headerlines")
headerlines = args(i+1).int_value();
+ else if (prop == "commentstyle")
+ commentstyle = args(i+1).int_value();
else
error("Unknown property %s.",prop.c_str());
***************
--
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http://www.nabble.com/textread%3A-comment-out-lines-starting-with---tp25803121p25803121.html
Sent from the octave-dev mailing list archive at Nabble.com.
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