Topic: Question about {Search Replace} commnad. (1 of 5), Read 81 times Conf: Search and Replace From: Peter Rejto Date: Monday, March 01, 2004 08:04 PM Hello, I have a subtle question about the Search, Replace menu command. I would like to renumber my {eq:2.1} to {eq:2.2} but keep say, {eq:2.11} unchanged. As per the online help on regexp search I entered the search string eq:2.1[~0-9] and the replacement string eq:2.2. My problem is that in the process I lost a curly brace, "}", and my Latex was complaining quite a bit. I did find a work around: Use the Replace macro, mark the beginning. However, instead of marking the end of the string, come back one character with the Char(-1) macro. Then mark the block and replace the marked block. I thought there should be an easier way of doing it. It is not a major issue. But I thought, I ask it. Thanks, -peter.

Topic: Question about {Search Replace} commnad. (2 of 5), Read 84 times Conf: Search and Replace From: Christian Ziemski Date: Tuesday, March 02, 2004 02:22 AM On 3/1/2004 8:04:06 PM, Peter Rejto wrote: >I have a subtle question about the Search, Replace menu command. >I would like to renumber my {eq:2.1} to {eq:2.2} but keep >say, {eq:2.11} unchanged. > >I entered the search string eq:2.1[~0-9] and the >replacement string eq:2.2. > >My problem is that in the process I lost a curly brace, "}" The curly brace is matched by your expression "[~0-9]" and replaced by nothing. So it's lost... A simple approach is to (regexp) search for "2.1\}". But that is a bit inflexible. A more flexible regular expression could be: Search: 2.1{[^0-9]} Replace: 2.2\1 The expression {[^0-9]} matches the first non-digit (like you already did), but stores it internally as group #1. So you can reference it with "\1" in the replacement string. Christian

Topic: Question about {Search Replace} commnad. (3 of 5), Read 87 times Conf: Search and Replace From: Pauli Lindgren Date: Tuesday, March 02, 2004 05:05 AM On 3/2/2004 2:22:15 AM, Christian Ziemski wrote: >On 3/1/2004 8:04:06 PM, Peter Rejto wrote: > >>I would like to renumber my {eq:2.1} to {eq:2.2} but keep >>say, {eq:2.11} unchanged. > >A more flexible regular expression could >be: > > Search: 2.1{[^0-9]} > Replace: 2.2\1 What you need the regular expressions for? Why not just write "{eq:2.1}" in the Search box and "{eq:2.2}" in the Replace box (without the quotes)? -- Pauli

Topic: Question about {Search Replace} commnad. (4 of 5), Read 89 times Conf: Search and Replace From: Christian Ziemski Date: Tuesday, March 02, 2004 08:13 AM On 3/2/2004 5:05:24 AM, Pauli Lindgren wrote: >What you need the regular expressions for? >Why not just write "{eq:2.1}" in the Search box and >"{eq:2.2}" in the Replace box (without the quotes)? You are correct. Regular expressions are not needed in this special case. But Peter used them and so I followed. And I tried to show the very powerful grouping feature of regexp. Christian

Topic: Question about {Search Replace} commnad. (5 of 5), Read 87 times Conf: Search and Replace From: Peter Rejto Date: Tuesday, March 02, 2004 09:11 AM On 3/2/2004 2:22:15 AM, Christian Ziemski wrote: >On 3/1/2004 8:04:06 PM, Peter Rejto >wrote: > > >A simple approach is to (regexp) search >for "2.1\}". >But that is a bit inflexible. > >A more flexible regular expression could >be: > > Search: 2.1{[^0-9]} > Replace: 2.2\1 > >The expression {[^0-9]} matches the >first non-digit (like you already did), >but stores it internally as group #1. >So you can reference it with "\1" in the >replacement string. Thanks, Christian. This is exactly what I missed! Thanks Pauli, Now why do I use regular expressions? I have a macro which I use to renumber my equations and this macro uses regular expressions. My previous question was motivated by a rather special case of that macro. Regular expressions seem to work for me in my macro. In the old days they used to say, "don't change horses midstream". I adapted it to mean, "don't change notations midstream". This is not to say that it could not be done simpler using pattern search! Incidentally, how would I program, replace 2.n by 2.n+1 for n=0,1,2,3,4,5,6,7,8,9. Thanks again gentlemen, -peter.