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  4. Tool to replace tabs with VARIABLE NUMBER OF SPACES and preserve column alignment?

Tool to replace tabs with VARIABLE NUMBER OF SPACES and preserve column alignment?

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  • A arnold_w

    I have a table in Excel (i.e. tab-separated data) that I want to copy-and-paste into a C-file. I would like the table to be readable in the C-file as well, i.e. it should be nicely formatted into aligned columns. If I do a "dumb" replace-tabs-with-spaces then my column alignment gets messed up due to the text in the cells not being equal width. Does anybody know of a tool that can convert my tabs with a variable number of space and preserve the nice column alignment?

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    L Offline
    Lost User
    wrote on last edited by
    #4

    It is no good replacing tabs with some number of spaces. Tabs are markers which indicate that the next item should be placed on a tab boundary. Boundaries are on the next column which is a multiple of the tab width (usually 4 or 8). So a tab may represent any number of spaces from 1 up to the tab width. Are you pasting this as comments in your C file or as data to be displayed? If the latter then the tab characters should work.

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    • A arnold_w

      I have a table in Excel (i.e. tab-separated data) that I want to copy-and-paste into a C-file. I would like the table to be readable in the C-file as well, i.e. it should be nicely formatted into aligned columns. If I do a "dumb" replace-tabs-with-spaces then my column alignment gets messed up due to the text in the cells not being equal width. Does anybody know of a tool that can convert my tabs with a variable number of space and preserve the nice column alignment?

      P Offline
      P Offline
      phil o
      wrote on last edited by
      #5

      Since the process involves the use of the clipboard, there are a couple of solutions which come to my mind:

      • You could create a VBA macro in Excel which would format the contents:
        • You would need some PADLEFT or PADRIGHT kind of function:

          Function PadLeft(text As Variant, totalLength As Integer, padCharacter As String) As String
          PadLeft = String(totalLength - Len(CStr(text)), padCharacter) & CStr(text)
          End Function

          Function PadRight(text As Variant, totalLength As Integer, padCharacter As String) As String
          PadRight = CStr(text) & String(totalLength - Len(CStr(text)), padCharacter)
          End Function

          (source: SO: Any method equivalent to PadLeft/PadRight?[^]

        • Then use one of these functions to pad the values to the width of the largest value and place the result in the clipboard.

        • Have a button in Excel which launches the macro (whose result will be formatted text exported to the clipboard).

      • Or find an utility which can automatically format the content of the clipboard according to a specified format string. Honestly, I have never searched for such a tool, I don't even know if that exists.

      "Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."

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      • L Lost User

        It is no good replacing tabs with some number of spaces. Tabs are markers which indicate that the next item should be placed on a tab boundary. Boundaries are on the next column which is a multiple of the tab width (usually 4 or 8). So a tab may represent any number of spaces from 1 up to the tab width. Are you pasting this as comments in your C file or as data to be displayed? If the latter then the tab characters should work.

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        phil o
        wrote on last edited by
        #6

        Not necessarily if the widths accross a single column vary by more than a single tabulation's size.

        "Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."

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        • P phil o

          Not necessarily if the widths accross a single column vary by more than a single tabulation's size.

          "Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."

          L Offline
          L Offline
          Lost User
          wrote on last edited by
          #7

          Sorry, not sure I understand.

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          • L Lost User

            Sorry, not sure I understand.

            P Offline
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            phil o
            wrote on last edited by
            #8

            Imagine the following case:

            V1 V2 V3
            longv1 longv2 longv3

            It seems that OP's values (in a single column) have disparate widths. The same kind of "issue" which leads to code-blocks like

            int value = 0;
            char* name = "dummy";
            vector<char> characters = /* ... */;

            "Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."

            L 1 Reply Last reply
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            • P phil o

              Imagine the following case:

              V1 V2 V3
              longv1 longv2 longv3

              It seems that OP's values (in a single column) have disparate widths. The same kind of "issue" which leads to code-blocks like

              int value = 0;
              char* name = "dummy";
              vector<char> characters = /* ... */;

              "Five fruits and vegetables a day? What a joke! Personally, after the third watermelon, I'm full."

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #9

              :thumbsup:

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              • A arnold_w

                I have a table in Excel (i.e. tab-separated data) that I want to copy-and-paste into a C-file. I would like the table to be readable in the C-file as well, i.e. it should be nicely formatted into aligned columns. If I do a "dumb" replace-tabs-with-spaces then my column alignment gets messed up due to the text in the cells not being equal width. Does anybody know of a tool that can convert my tabs with a variable number of space and preserve the nice column alignment?

                L Offline
                L Offline
                leon de boer
                wrote on last edited by
                #10

                It is impossible only excel knows how wide the original columns were, that is why it puts the delimiters in the text to mark the columns :-) So if you want the original column width in excel you need to get excel to put them in a cell so it gets exported with the data and you can then use it to reformat the layout. I know for say cell A1 width the excel formula is =CELL("width", A1) which displays as a decimal number. What exactly that number is I have no idea but you can try searching for it or just play with a few letters and font heights and you should be able to work it out.

                In vino veritas

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                • L leon de boer

                  It is impossible only excel knows how wide the original columns were, that is why it puts the delimiters in the text to mark the columns :-) So if you want the original column width in excel you need to get excel to put them in a cell so it gets exported with the data and you can then use it to reformat the layout. I know for say cell A1 width the excel formula is =CELL("width", A1) which displays as a decimal number. What exactly that number is I have no idea but you can try searching for it or just play with a few letters and font heights and you should be able to work it out.

                  In vino veritas

                  A Offline
                  A Offline
                  arnold_w
                  wrote on last edited by
                  #11

                  I don't mean the width in pixels or whatever unit Excel is using, I mean width in number of characters.

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                  • A arnold_w

                    I have a table in Excel (i.e. tab-separated data) that I want to copy-and-paste into a C-file. I would like the table to be readable in the C-file as well, i.e. it should be nicely formatted into aligned columns. If I do a "dumb" replace-tabs-with-spaces then my column alignment gets messed up due to the text in the cells not being equal width. Does anybody know of a tool that can convert my tabs with a variable number of space and preserve the nice column alignment?

                    A Offline
                    A Offline
                    arnold_w
                    wrote on last edited by
                    #12

                    I have found exactly what I was looking for. I if go to the website ASCII Table Generator – Quickly format ASCII table. Great for source code comments and markdown![^] and choose "Header Location:" "None" and "Output Style:" "ASCII (Compact)" then I get exactly the formatting I want. Thanks everyone who contributed in this thread.

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                    • A arnold_w

                      I don't mean the width in pixels or whatever unit Excel is using, I mean width in number of characters.

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                      L Offline
                      leon de boer
                      wrote on last edited by
                      #13

                      I know but you aren't really looking at problem. The fonts in the cells are true type proportional not old school fixed pixel fonts so unless you have display formats on them you are dead out luck they wont be fixed character widths. So the best you can probably do is the pixel width and then divid it by some number so if the font sort of averages 10 pixels width the 100 pixel column = 100/10 = 10 characters and 150 pixel width column gives you 15 characters. You aren't going to be able to do much better than that at at least it will be somewhat columnized

                      In vino veritas

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                      • L leon de boer

                        I know but you aren't really looking at problem. The fonts in the cells are true type proportional not old school fixed pixel fonts so unless you have display formats on them you are dead out luck they wont be fixed character widths. So the best you can probably do is the pixel width and then divid it by some number so if the font sort of averages 10 pixels width the 100 pixel column = 100/10 = 10 characters and 150 pixel width column gives you 15 characters. You aren't going to be able to do much better than that at at least it will be somewhat columnized

                        In vino veritas

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                        A Offline
                        arnold_w
                        wrote on last edited by
                        #14

                        I found a perfect tool, please see my reply below.

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