使用正则表达式提取特定模式内的字符串

Question

Lets say I have a string "lore epsum dimsum ${ITEM_NAME} wonton kimchi" .

I have created a regex that can extract ${ITEM_NAME} from anywhere in the string. That regex is, .{(.*.*)} .

How can I customize this regex to extract just the string between ${} which is ITEM_NAME ?

Answer 1

With {(.*.*)} pattern, you extract any substrings between the leftmost { and rightmost } .

You need

\$\{([^{}]*)\}

In Java:

String regex = "\\$\\{([^{}]*)\\}";

See the regex demo .