How to escape history expansion exclamation mark ! inside a double quoted string?

In your last example, echo “$(echo ‘!b’)” the exclamation point is not single-quoted. Because history expansion occurs so early in the parsing process, the single quotes are just part of the double-quoted string; the parser hasn’t recognized the command substitution yet to establish a new context where the single quotes would be quoting operators. To … Read more

Finding quoted strings with escaped quotes in C# using a regular expression

What you’ve got there is an example of Friedl’s “unrolled loop” technique, but you seem to have some confusion about how to express it as a string literal. Here’s how it should look to the regex compiler: “[^”\\]*(?:\\.[^”\\]*)*” The initial “[^”\\]* matches a quotation mark followed by zero or more of any characters other than … Read more