regex range from numeric to a specific character

Can I use a character as a delimiter of a range in regex? For example if I want the range to start index 1 and ends at character $. How can I do that?

{1, what 开发者_如何学Cdo i put in here}

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this regex will match any letter, number or the $ sign. is that all you need?

[A-Za-z0-9\$]

Update:

given OP's comment to match "$CM-PRQRPMD$", use the following regex:

\$[A-Z-]+\$

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You don't. Just use +?\$. For example, .+?\$ matches at least one character up to and including the first $. (The $ cannot be the first character, though; for that, simply use .*?\$.)

If you want to exclude the $, wrap it in a lookahead assertion: .+?(?=\$).

EDIT (in response to clarification): To match identifiers between a pair of $, and assuming the $s belong to the identifier, you can just write this: \$(.*?)\$. The parentheses will create a capturing group, so that the $s are excluded from the match. If the delimiters aren't part of the identifier and you need to find multiple matches — e.g., $AAA$BBB$ — then you'll need to use zero-width assertions: (?<\$)(.*?)(?=\$) so that the $s aren't absorbed while matching.