sed查找替换正则表达式窗口

Question

I have a latex file that contains many such expressions such as \\find{101.3}

What I want to do is some form of preprocessing with a batch file running on windows that replaces these expressions with: \\replace{101}\\and{3}

I assume I will need to use regular expressions. Using Unix I know I can do this with sed and I have something that works.

sed -e 's/\\\\find{\\([0-9]*\\)\\.*\\([0-9]*\\)}/\\\\replace{\\1}\\\\and{\\2}/g' $1.tex>$1d.tex

But how can I transfer this to the windows batch language?

Answer 1

Ouch. I've recently have seen some batch kungfu with string search and replacement, but I heavily doubt it is directly possible with complex regex.

Does it REALLY have to be a batch file?
Have you considered ie:

• installing minimal GNU environment? Then, you'll have grep, sed and others on windows!
• using PowerShell instead of batches? It allows you to write scripts that leverage full .Net class libraries, so System.Text.Regex are just at hand
• if not powershell, then using VBScript (yuck) or javascript should be possible too, but working with file i/o may get hairy..

I personally dont like powershell so I've set a PIK & Ruby 1.9.3 for such small tasks. It also imediatelly grants me a minimal GNU, so

pik 193
ls -al | grep foo

works like a charm. On windows console.

edit:

An example of string substitution in batch files: https://superuser.com/a/362405/233273 (though, NOT regex. Just constant->-constant replacement). Some answers to that question also give an example of similar thing in powershell, and there regex would be accepted too.