On 5 ene, 20:05, Mensanator <mensana...@aol.com> wrote: > On Jan 5, 12:35 pm, MRAB <pyt...@mrabarnett.plus.com> wrote: > > > > > vsoler wrote: > > > Hello, > > > > I am acessing an Excel file by means of Win 32 COM technology. > > > For a given cell, I am able to read its formula. I want to make a map > > > of how cells reference one another, how different sheets reference one > > > another, how workbooks reference one another, etc. > > > > Hence, I need to parse Excel formulas. Can I do it by means only of re > > > (regular expressions)? > > > > I know that for simple formulas such as "=3*A7+5" it is indeed > > > possible. What about complex for formulas that include functions, > > > sheet names and possibly other *.xls files? > > > > For example "=Book1!A5+8" should be parsed into ["=","Book1", "!", > > > "A5","+","8"] > > > > Can anybody help? Any suggestions? > > > Do you mean "how" or do you really mean "whether", ie, get a list of the > > other cells that are referred to by a certain cell, for example, > > "=3*A7+5" should give ["A7"] and "=Book1!A5+8" should give ["Book1!A5] > > Ok, although "Book1" would be the default name of a workbook, with > default > worksheets labeled "Sheet1". "Sheet2", etc. > > If I had a worksheet named "Sheety" that wanted to reference a cell on > "Sheetx" > OF THE SAME WORKBOOK, it would be =Sheet2!A7. If the reference was to > a completely > different workbook (say Book1 with worksheets labeled "Sheet1", > "Sheet2") then > the cell might have =[Book1]Sheet1!A7. > > And don't forget the $'s! You may see =[Book1]Sheet1!$A$7.
Yes, Mensanator, but... what re should I use? I'm looking for the re statement. No doubt you can help! Thank you. -- http://mail.python.org/mailman/listinfo/python-list
