postscript, String manipulation

String manipulation

Author	Message
Duncan Kinnea #1 / 8	String manipulation Hi folks, Anyone know how I can strip characters out of string before printing it? The string will be something like "(402)123456787890" and I want to be able to strip out the open and close brackets. The red book doesn't seem to have any useful examples of string manipulation. Thanks in advance for any help. Cheers, Duncan Kinnear.
Fri, 02 May 2003 10:13:49 GMT

Aandi Inst #2 / 8	String manipulation Quote: >Hi folks, >Anyone know how I can strip characters out of string before printing it? >The string will be something like "(402)123456787890" and I want to be >able to strip out the open and close brackets. In this case, you'd copy the characters one at a time from one string to a new string. Use get and put. When you are finished you will need to shorten the target string target_string 0 required_length 1 sub getinterval will return the string of the correct length. ---------------------------------------- Visit http://www.--.com/ , PSAlter, psalters, tea, and small {filter*} animals. And stuff.
Fri, 02 May 2003 03:00:00 GMT

Fran?ois Rober #3 / 8	String manipulation Duncan Kinnear a crit dans le message Quote: >Anyone know how I can strip characters out of string before printing it? >The string will be something like "(402)123456787890" and I want to be >able to strip out the open and close brackets. Depending on what your situation is and whether you only need to suppress graphical output, another option maybe to avoid printing parentheses altogether by defining a font encoding for which parentheses' character codes 40 and 41 are non-marking characters (like space) and ideally zero width as well (this second statement may prove impossible to reach in many cases). Of course, if the scope of the exercise is to learn string manipulation in PS, that's a bit off target... __________________________________ Fran?ois Robert To mail me : reverse order of all characters in address
Fri, 02 May 2003 03:00:00 GMT

George Spowar #4 / 8	String manipulation Quote: >Hi folks, >Anyone know how I can strip characters out of string before printing it? >The string will be something like "(402)123456787890" and I want to be >able to strip out the open and close brackets. >The red book doesn't seem to have any useful examples of string >manipulation. >Thanks in advance for any help. >Cheers, >Duncan Kinnear. Hello Duncan If the string structure is always as shown in your example with the bracketed digits at the beginning and you only require to print the characters in the string omitting the inner brackets then the token operator will do the needful. In the above structure it will return a true and 2 strings. Pop the boolean and show the strings (or define them for later use). Not really much string manipulation but maybe adequate. Rough examples follow Regards George %! 100 100 moveto ((402)123456789070) token pop show show 100 200 moveto ((98765)25680) token pop show show 100 300 moveto ((15)0987654321) token pop show show showpage George Spowart
Fri, 02 May 2003 03:00:00 GMT

George Spowar #5 / 8	String manipulation Quote: >>Hi folks, >>Anyone know how I can strip characters out of string before printing it? >>The string will be something like "(402)123456787890" and I want to be >>able to strip out the open and close brackets. >>The red book doesn't seem to have any useful examples of string >>manipulation. >>Thanks in advance for any help. >>Cheers, >>Duncan Kinnear. >Hello Duncan >If the string structure is always as shown in your example with the >bracketed digits at the beginning and you only require to print the >characters in the string omitting the inner brackets then the token >operator will do the needful. In the above structure it will return >a true and 2 strings. Pop the boolean and show the strings (or define >them for later use). Not really much string manipulation but maybe >adequate. Rough examples follow >Regards >George >%! >100 100 moveto >((402)123456789070) token pop show show >100 200 moveto >((98765)25680) token pop show show >100 300 moveto >((15)0987654321) token pop show show >showpage >George Spowart Apologies, I omitted to include font type and size in above example George Spowart
Fri, 02 May 2003 03:00:00 GMT

Duncan Kinnea #6 / 8	String manipulation Quote: > Anyone know how I can strip characters out of string before printing it? > The string will be something like "(402)123456787890" and I want to be > able to strip out the open and close brackets. Thanks for the suggestions. The 'token' method was an interesting one which I must try and remember. Unfortunately I couldn't that methos because there could be an indeterminate number of brackets in the string. However, I took the plunge and managed to figure it out using 'get' and 'put'. The original code had the following line at the beginning of the proc in question: /msg exch def Which I replaced with the following code: /humantext exch def /msgtemp humantext length string def /msgidx 0 def humantext { dup dup 40 ne exch 41 ne and { msgtemp exch msgidx exch put /msgidx msgidx 1 add def } { pop } ifelse } forall /msg msgtemp 0 msgidx 1 sub getinterval def Seems to do the trick. If anyone can suggest any improvements then be my guest. BTW, if anyone is interested in why I needed this, it's for printing barcodes along with their human-readable equivalent. We need the brackets in the human readable text under the barcode, but the barcode itself cannot contain them. Cheers, Duncan Kinnear.
Sat, 03 May 2003 03:00:00 GMT

Rogers New #7 / 8	String manipulation If you want something simple... if you're always removing a bracketed set from the BEGINNING of the string, you can do it very easily. /newstring ((645)8822345-8783457734) def /newstring oldstring (\)) search {exch pop exch pop} if def That should do the trick... search returns "pre" "match" "post", and you're only interested in the "post" part (what comes after the first right bracket in the string). Using this, if there is no right bracket in the string, it will leave the whole string on the top of the stack, which will be defined as newstring as well. I haven't actually run this, but it should work "out of the box". Kevin. Quote: ----- Original Message ----- Newsgroups: comp.lang.postscript Sent: Tuesday, November 14, 2000 12:33 PM Subject: Re: String manipulation > > Anyone know how I can strip characters out of string before printing it? > > The string will be something like "(402)123456787890" and I want to be > > able to strip out the open and close brackets.
Tue, 13 May 2003 03:00:00 GMT

Rogers New #8 / 8	String manipulation OOps... sorry, the first line should read "/oldstring" not "/newstring" Quote: > If you want something simple... if you're always removing a bracketed set > from the BEGINNING of the string, you can do it very easily. > /newstring ((645)8822345-8783457734) def > /newstring oldstring (\)) search {exch pop exch pop} if def > That should do the trick... search returns "pre" "match" "post", and you're > only interested in the "post" part (what comes after the first right bracket > in the string). Using this, if there is no right bracket in the string, it > will leave the whole string on the top of the stack, which will be defined > as newstring as well. > I haven't actually run this, but it should work "out of the box". > Kevin. > ----- Original Message ----- > Newsgroups: comp.lang.postscript > Sent: Tuesday, November 14, 2000 12:33 PM > Subject: Re: String manipulation > > > Anyone know how I can strip characters out of string before printing it? > > > The string will be something like "(402)123456787890" and I want to be > > > able to strip out the open and close brackets.
Tue, 13 May 2003 03:00:00 GMT

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