CODEWITHSUNDEEP
htmlregexreplacenotepad++
hoonose
hoonose

Reputation: 94

Find and replace all occurrences of a string inside an HTML tag in one pass

I need a regular expression to search for and replace multiple occurrences of a text string within a delimited section of text.

Let's say there is HTML code with one or more spans that have a certain class. Each span may have none, one or multiple occurrences of the string {abc} inside, e.g.

<p>lorem ipsum dolor <span class="xyz">sid amet{abc}et pluribus {abc} unum{abc} diex 
et mon droit</span> you'll never walk alone</p>

Thus I need a regex pair to replace all occurrences of {abc} within <span id="xyz"> with {def} in a single pass.

This is for use in a text editor such as Notepad++ and the like and needs to be be a PCRE/UNIX-style regular expression.

What I have is,

find: (<span class="xyz">)([^<]*)\{abc\}([^<]*<)

replace: \1\2{def}\3

This does work for one occurrence within a span, but in case of more occurrences, I have to run replacement multiple times, in cycle, while I need that to be one-pass.

I wonder how can I achieve that. I suppose this is a pretty common case, somehow I could not find similar things concerning the need to be one-pass, no cycles, no code, and I'd like to get an idea how this could be done in principle.

Upvotes: 1

Views: 680

Answers (1)

LukStorms
LukStorms

Reputation: 29677

This seems to work in Notepad++

Find what : (?:<span class="xyz">|\G)[^<]*?\K\{abc\}(?=[^<]*<\/span>)

Replace with : {def}

Search mode : Regular expression

Note that because of the [^<]* there is an assumption that there are no other tags within the span tag.

Upvotes: 1

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