Reading random data from file

[smk]

Hi,

I am having a file in this format

************************************************** ********************
************************************************** ********************
*** ***
*** Program Summary File ***
*** ======= ====== ======= ==== ***
*** ***
*** *** ***
************************************************** ********************
************************************************** ********************
&summ
dire = '/home,
grd_in = 'x.grid',
flw_in = 'x.flow',
par_in = x.par',
flw_out = 'tx.flow.out',
sta_out = x.sta',
status = 'interrupted',
error = 'erratic',
iter = 18856, cpusec = 7.4445E+04, speed = 159413.0,
rmin = 0.9909, ravg = 1.0057, rmax = 1.0252,
emax = 8.5078E-04, eavg = 7.0496E-05, emass = 1.5355E-03,
vrms = 2.0803E+02, flow = 3.3041E+01,
tke = 1.0532E-02, diss = 9.9826E-01,
/

Speed = 0.0000000E+00 RPM
Cp (ft^2/sec^2/deg R) = 5.0932700E+03
Gamma = 1.1000000
Gas constant = 4.6302463E+02
Exit physical annular flow = 3.3067703E+01 lbm/sec

I want to extract the data values highlighted as BOLD ( Speed, Gamma, Gas constant, Exit physical annular flow).I was able to read the entire line from the file using gets() but how to get these particular values from the string I got. Since each line in the file is having different format, I am having difficulty in getting them. Suggestion please .

[D_C]

Here's some pseudocode:

while (NOT end of file OR NOT captured data)
{
  read in a line
  if the first 8 characters are not "Speed = "
   discard the line
  otherwise
  {
    find the last space on that line;
    everything else in between is the speed
 
    read in and discard the next line // CP
 
    read in the next line
    if the first 8 characters are not "Gamma = "
      there is an error
    otherwise
      everything after the 8th character is the gamma value
 
    read in the next line
    if the first 14 characters are not "Gas constant = "
      there is an error
    otherwise
      everything after the 14th character is the gas constant
 
    read in the next line
    if the first 29 characters are not "Exit physical annular flow = "
      there is an error
    otherwise
    {
      find the last space
      everything else in between is the EPA flow
    }
 
    close the file
    captured data is true
  }
}

[smk]

Thank you very much
I got it

[D_C]

Actually, you know that the line that starts "Speed = " should end with " RPM". So you could compare for that as the last four instead of finding the last space. Similarly with the " lbm/sec" at the end of the "Exit ... flow" line.