RosettaCodeData/Task/Align-columns/ZX-Spectrum-Basic/align-columns.basic

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5 BORDER 2
10 DATA 6
20 DATA "The$problem$of$Speccy$"
30 DATA "is$the$screen.$"
40 DATA "Need$adapt$text$sample$"
50 DATA "for$show$the$result$"
60 DATA "without$problem$,right?$"
70 DATA "But$see$the$code.$"
80 REM First find the maximum length of a 'word'
90 LET max=0: LET d$="$"
100 READ nlines
110 FOR l=1 TO nlines
120 READ t$
130 GO SUB 1000
150 NEXT l
155 LET s$=" "( TO max)
160 REM Now display the aligned text:
170 LET m$="l": GO SUB 2000: PRINT
180 LET m$="r": GO SUB 2000: PRINT
190 LET m$="c": GO SUB 2000
200 STOP
1000 REM Maximum length of a word
1010 LET lt=LEN t$: LET p=1: LET lw=0
1020 FOR i=1 TO lt
1030 IF t$(i)=d$ THEN LET lw=i-p: LET p=i: IF lw>max THEN LET max=lw
1040 NEXT i
1050 RETURN
2000 REM Show aligned text
2010 RESTORE 20
2020 FOR l=1 TO nlines
2030 READ t$
2040 GO SUB 3000
2050 NEXT l
2060 RETURN
3000 REM Show words
3010 LET lt=LEN t$: LET p=1: LET lw=0
3020 FOR i=1 TO lt
3030 IF t$(i)<>d$ THEN GO TO 3090
3035 LET lw=i-p
3040 LET p$=t$(p TO i-1): LET p=i+1: LET z$=s$
3050 IF m$="l" THEN LET z$( TO lw)=p$
3060 IF m$="r" THEN LET z$(max-lw+1 TO )=p$
3070 IF m$="c" THEN LET z$((max/2)-(lw/2) TO )=p$
3080 PRINT z$;
3090 NEXT i
3095 PRINT
3100 RETURN