TIP: translate FORTRAN array to C
Development, Python July 17th, 2006
I am really bored to convert the FORTRAN array decorator () to C array [], and eventually, I hacked this small script to do the tendious work:
#!/usr/bin/env python
import sys, re, string
p = re.compile( ‘([A-Z]+)\(([^\(\)]+)\)‘ )
for line in sys.stdin:
print string.rstrip( p.sub( r‘\1[\2]‘, line ))+";"
The usage is quite simple:
bookstack@tiger ~/work/bra_par $ ./main.py < test
RHOil=(DX[i-1]*RHO[ij]+DX[i]*RHO[il])/(DX[i]+DX[i-1]);
RHOil=1.0/(RHOil+TINNY);
RHOjt=(DY[j+1]*RHO[ij]+DY[j]*RHO[jt])/(DY[j]+DY[j+1]);
RHOjt=1.0/(RHOjt+TINNY);
RHOil=(DX[i-1]*RHO[ij]+DX[i]*RHO[il])/(DX[i]+DX[i-1]);
RHOil=1.0/(RHOil+TINNY);
RHOjt=(DY[j+1]*RHO[ij]+DY[j]*RHO[jt])/(DY[j]+DY[j+1]);
RHOjt=1.0/(RHOjt+TINNY);
Here is the trick: the array consists variable name(captilized letters), (, whatever, ). we group the variable name and whatever as group 1, 2; then replace (, ) with [, ]. A simple demostration of how powerful the regular expression is.
Leave a Comment