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how to parse string and number

saurabh96

Hello guys,

i have list of rules  i.e  rules_Entry=  ("chk_abc_1 (diodes)" "chk_xyz_2 (bjt)" "chk_jhg_3 (res)" "chk_lmn_4 (cap)" "chk_uvw_5 (inductor)" )

check = buildString(
foreach(mapcar entry form->rules_Entry->value
car(parseString(entry))
)
","
)

it will give output as chk_abc_1,chk_xyz_2,chk_jhg_3,lmn_4,chk_uvw_5

Now i want that it should print only numbers i.e 1,2,3,4

rules_print= rexCompile("_")
newCell=rexReplace(check " " 0)

rules_number = buildString(
foreach(mapcar entry form->newCell->value
nth(2 parseString(entry))
)
","
)

but am getting error...how can i acheive output as rules_number= 1,2,3,4,5

 

Thanks in advance

  • The code above is a bit confused - it seems to be looking for a field on the form called newCell, yet newCell is a variable. I have a sneaking suspicion you're throwing lines of code together without really understanding what are variables, what are fields on the form, and so on? Also, if you are getting errors, it's far better to actually show the error you're getting, and ideally enough code (as I have said several times before) to be able to show the problem. At the moment you only have pieces of the puzzle shared.

    Anyway, assuming that you're starting from your rules_Entry field, you could do this:

    numPat=pcreCompile("\\d")
    rules_number=buildString(
      foreach(mapcar entry form->rules_Entry->value
        pcreExecute(numPat entry)
        pcreSubstitute(numPat "\\0")
      )
      ","
    )

    In your code, it's a bit pointless using the rex functions to change the underscore to a space, and then use parseString with space. You might just as well have used parseString with "_ " as a delimiter (so space or underscore). So you could have done:

    rules_number=buildString(
      foreach(mapcar entry form->rules_Entry->value
      nth(2 parseString(entry "_ "))
      )
      ","
    )

    Andrew

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