| 1 | ;+ |
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| 2 | ; |
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| 3 | ; @file_comments |
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| 4 | ; |
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| 5 | ; @categories |
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| 6 | ; |
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| 7 | ; @param WIDCMD |
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| 8 | ; |
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| 9 | ; @param TOREAD |
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| 10 | ; |
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| 11 | ; @param NUMBEROFREAD |
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| 12 | ; |
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| 13 | ; @param PREFIX |
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| 14 | ; |
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| 15 | ; @param NAMEEXP |
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| 16 | ; |
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| 17 | ; @param ENDING |
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| 18 | ; |
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| 19 | ; @returns |
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| 20 | ; |
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| 21 | ; @uses |
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| 22 | ; |
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| 23 | ; @restrictions |
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| 24 | ; |
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| 25 | ; @examples |
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| 26 | ; |
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| 27 | ; @history |
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| 28 | ; |
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| 29 | ; @version |
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| 30 | ; $Id$ |
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| 31 | ; |
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| 32 | ; @todo |
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| 33 | ; seb |
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| 34 | ; |
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| 35 | ;- |
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| 36 | PRO cutcmd, widcmd, toread, numberofread, prefix, nameexp, ending |
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| 37 | ; |
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| 38 | compile_opt idl2, strictarrsubs |
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| 39 | ; |
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| 40 | dummy = where(byte(widcmd) EQ (byte('"'))[0], nbdblquote) |
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| 41 | CASE 1 OF |
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| 42 | nbdblquote MOD 2: stop ; odd numbers are impossibles... |
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| 43 | nbdblquote GT 0: |
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| 44 | nbdblquote EQ 0:BEGIN |
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| 45 | ; widcmd is an expression of type: |
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| 46 | ; numb1*a + numb2*b ... + numb |
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| 47 | ; we will change into the form |
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| 48 | ; numb1*"a" + numb2*"b" ... + numb |
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| 49 | ; in order to suits the new method of cutcmd |
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| 50 | widcmd = strtrim(widcmd, 2) |
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| 51 | ; we force to start with a + or - |
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| 52 | case 1 of |
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| 53 | strpos(widcmd, '+') EQ 0: |
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| 54 | strpos(widcmd, '-') EQ 0: |
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| 55 | ELSE:widcmd = '+' + widcmd |
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| 56 | ENDCASE |
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| 57 | separator = strsplit(widcmd, '[^-/*+]', /extract, /regex) |
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| 58 | other = strsplit(widcmd, '+-*/', /extract) |
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| 59 | IF n_elements(separator) NE n_elements(other) THEN stop |
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| 60 | widcmd = '' |
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| 61 | FOR i = 0, n_elements(other)-1 DO BEGIN |
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| 62 | IF isnumber(other[i]) LT 1 THEN other[i] = '"' + other[i] + '"' |
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| 63 | widcmd = widcmd + separator[i] + other[i] |
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| 64 | ENDFOR |
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| 65 | ; print, widcmd |
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| 66 | END |
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| 67 | ENDCASE |
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| 68 | |
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| 69 | cutted = strsplit(widcmd, '"', /extract) |
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| 70 | IF strpos(widcmd, '"') EQ 0 THEN start = 0 ELSE start = 1 |
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| 71 | nameexp = cutted[start:*:2] |
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| 72 | numberofread = n_elements(nameexp) |
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| 73 | IF toread GE numberofread then begin |
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| 74 | dummy = report('toread cannot be larger than numberofread') |
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| 75 | stop |
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| 76 | ENDIF |
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| 77 | IF n_elements(cutted) EQ 1 THEN other = '' ELSE other = cutted[1-start:*:2] |
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| 78 | ; make sure that we have a prefix for each nameexp |
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| 79 | IF start EQ 0 THEN other = ['', other] |
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| 80 | ; |
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| 81 | nameexp = nameexp[toread] |
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| 82 | prefix = other[toread] |
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| 83 | IF n_elements(other) EQ numberofread + 1 THEN ending = other[numberofread] ELSE ending = '' |
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| 84 | ; |
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| 85 | ;help, prefix, nameexp, ending |
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| 86 | ; |
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| 87 | return |
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| 88 | end |
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