[2] | 1 | ;------------------------------------------------------------ |
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| 2 | ;------------------------------------------------------------ |
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| 3 | ;------------------------------------------------------------ |
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| 4 | ;+ |
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| 5 | ; NAME:isafile |
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| 6 | ; |
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| 7 | ; PURPOSE:find a file and check if it is a real file! |
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| 8 | ; |
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| 9 | ; CATEGORY:for open |
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| 10 | ; |
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| 11 | ; CALLING SEQUENCE:filename = isafile() |
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| 12 | ; |
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| 13 | ; INPUTS:none |
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| 14 | ; |
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| 15 | ; KEYWORD PARAMETERS: |
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| 16 | ; FILENAME: a proposed filename. |
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| 17 | ; IODIRECTORY: a directory where must be the file. |
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| 18 | ; /NEW:to specify that filename is a new file |
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| 19 | ; |
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| 20 | ; OUTPUTS:the filename |
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| 21 | ; |
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| 22 | ; COMMON BLOCKS:none |
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| 23 | ; |
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| 24 | ; SIDE EFFECTS: |
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| 25 | ; |
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| 26 | ; RESTRICTIONS: |
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| 27 | ; |
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| 28 | ; EXAMPLE: |
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| 29 | ; |
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| 30 | ; MODIFICATION HISTORY:Sebastien Masson (smasson@lodyc.jussieu.fr) |
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| 31 | ; 11/2/2000 |
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| 32 | ;- |
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| 33 | ;------------------------------------------------------------ |
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| 34 | ;------------------------------------------------------------ |
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| 35 | ;------------------------------------------------------------ |
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| 36 | FUNCTION isafile, FILENAME = filename, IODIRECTORY = iodirectory, FILTER = filter, NEW = new |
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| 37 | ;------------------------------------------------------------ |
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| 38 | ; we find the filename. |
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| 39 | ;------------------------------------------------------------ |
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| 40 | ; is filename given by the FILENAME keyword a good one? |
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| 41 | ; si iodirectory n''est pas definit on l''initialise au repertoire courant |
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| 42 | if NOT keyword_set(filename) then filename = 'nimportequoi' |
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| 43 | thisOS = strupcase(strmid(!version.os_family, 0, 3)) |
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| 44 | CASE thisOS OF |
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| 45 | 'MAC':sep = ':' |
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| 46 | 'WIN':sep = '\' |
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| 47 | ELSE:sep = '/' |
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| 48 | ENDCASE |
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| 49 | ; we complete filename by iodirectory? |
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| 50 | if strpos(filename, sep) EQ -1 then begin |
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| 51 | if NOT keyword_set(iodirectory) then cd, current = iodirectory |
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| 52 | ; si iodirectory ne finit pas par sep on le rajoute |
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| 53 | if rstrpos(iodirectory, sep) NE strlen(iodirectory)-1 then $ |
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| 54 | iodirectory = iodirectory+sep |
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| 55 | filename = iodirectory+filename |
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| 56 | ENDIF |
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| 57 | if keyword_set(new) then return, filename |
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| 58 | test = findfile(filename) ; le nom cherche correspond bien a un fichier? |
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| 59 | while test[0] EQ '' OR n_elements(test) GT 1 do BEGIN ; on en cherche un tant qu''il ne correspond a rien! |
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| 60 | test = test[0] |
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| 61 | if keyword_set(filter) AND thisOS NE 'MAC' AND thisOS NE 'WIN' then $ |
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| 62 | filename = dialog_pickfile(path = iodirectory, filter = filter) $ |
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| 63 | ELSE filename = dialog_pickfile(path = iodirectory) |
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| 64 | if filename EQ '' then return, report('read_data canceled') |
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| 65 | test = findfile(filename) |
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| 66 | endwhile |
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| 67 | |
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| 68 | return, filename |
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| 69 | end |
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