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Top Forums Programming Correct way to read data of different formats into same struct Post 302940615 by yifangt on Tuesday 7th of April 2015 04:47:52 PM
Old 04-07-2015
Thanks Don:
I am aware what you meant by fgets() + sscanf() + strncpy() to parse input. At this moment I am working with fscanf() and assuming no missing field of the data.
According to this reference:
Code:
int fscanf ( FILE * stream, const char * format, ... );
Reads data from the stream and stores them according to the parameter format into the locations pointed by the additional arguments.
......
On success, the function returns the number of items of the argument list successfully filled.

My unclear part is: can the number of items of the argument list be separated by newline, i.e. in different rows? In other words, fscanf() keeps looking for the defined items until all of them are found, no matter those items are separated by space, tab or newline?
To give more of my confusion by this code fragment:
Code:
  rewind (pFile);                  //Line 11
  fscanf (pFile, "%f", &f);        //Line 12
  fscanf (pFile, "%s", str);       //Line 13

Line 11: set position of pFile stream to the beginning
Line 12: Look for a float number in one line (e.g. line 1)
Line 13: Look for a string in next line(line 2), or the same line(line 1)?
Code:
  rewind (pFile);                          //Line 11
  fscanf (pFile, "%f %s", &f, str);        //Line 12

This time Line 12 would be Looking for a float number AND a string in the same line (line 1)?
Sorry for this naive question, which bugs me. Thanks a lot!

Last edited by yifangt; 04-07-2015 at 06:10 PM..
 

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set_color(1)							       fish							      set_color(1)

NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)
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