You can use the match string with a number of wildcard characters, which are discussed in detail in the following sections. Table 4-7 summarizes the wildcard characters:
| Symbol | Meaning | 
|---|---|
| % | Any string of 0 or more characters | 
| _ | Any single character | 
| [ ] | Any single character within the specified range ([a-f]) or set ([abcdef]) | 
| [^] | Any single character not within the specified range ([^a-f]) or set ([^abcdef]) | 
Enclose the wildcard character and the match string in single or double quotes (like “[dD]eFr_nce”).