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long texts



 I interested to know if U2 has a frame that will enable one to search fopr text that is too long to fit on the command line.
 
 Herb Tyson devised this program to do just that but it is flawed. Should there be no program to search for long strings, is it possible to examine the program below for its errors.
 
XPLeNCODE v2.0
b-gin [UNTITLED]
{<}SX12,{<}CP{>}{>}{<}SX01,{<}VA$DF{>}{>}{<}IF{<}PV01{>}==0{>
}{<}PRNo text defined{>}{<}EX1{>}[cr|lf]{<}EI{>}{<}SV01{>}[DE
_]{<}SX02,{<}VA$DS{>}{>}{<}SX03,{<}VA$DN{>}{>}{<}SX04,@siz({≪BR>}IS01{>}){>}{<}SX05,{<}PV03{>}{>}[YD_]{<}LBagain{>}[BC_]jmp {
<}PV05{>}[XC_][DF_]{<}SX09,{<}CP{>}{>}{<}SX06,{<}PV05{>}+5000
{>}[BC_]jmp {<}PV06{>}[XC_]{<}SX11,{<}CP{>}{>}{<}IF{<}PV11{>}
=={<}PV09{>}{>}[YD_]{<}GLnotfound{>}[cr|lf]{<}EI{>}[DF_]{<}SV
10{>}[YD_]{<}SX07,{<}IS01{>}{238}{<}IS10{>}{>}{<}IF{<}PV07{>}}{<}GLmatch{>}[cr|lf]{<}EI{>}{<}SX05,{<}PV06{>}-{<}PV04{}e{<}GLagain{>}[cr|lf]{<}LBmatch{>}{<}SX08,{<}PV05{>}+{
<}PV07{>}{>}[BC_]jmp {<}PV08{>}[XC_][DF_]{<}SX08,{<}PV08{>}+{
<}PV04{>}{>}[BC_]jmp {<}PV08{>}[XC_][DF_][BC_][GT_]{<}PRFound
 and defined{>}{<}EX1{>}[cr|lf]{<}LBnotfound{>}[BC_]jmp {<}PV
12{>}[XC_][BC_]{<}SX79,{<}IS00{>}{>}{<}SV18,[cr|lf]{>}{<}SV17
,[255+048+065]{>}{<}LBfixcr{>}{<}IF{<}IS18{>}{238}{<}IS79{>}≪BR>0{>}{<}GLendfix{>}[cr|lf]{<}EI{>}{<}XS79,18,71,72,73{>}{<}SX7
9,{<}IS71{>}+{<}IS17{>}+{<}IS73{>}{>}{<}GLfixcr{>}[cr|lf]{<}L
Bendfix{>}{<}PV79{>}[GT_]{<}PRNot found{>}{<}EX1{>}         {032}
        {032}
-nd
XPLeNCODE
 With thanks,
 
     Morris