Casio Naurtech CETerm Ver.5.5 User Manual - Manual (Page 100)

N AURTECH E MULATORS & W EB B ROWSER FOR W INDOWS CE / W INDOWS M OBILE
CETerm | CE3270 | CE5250 | CEVT220 Page 100
The special ".*" means to match zero or more characters; the '.' represents any character.
Example 2
We can also specify a fixed number of characters to identify fixed field locations:
Match: "^T1:.{4}(.{20}).*T2:([0-9]{10})"
Replace: "Name:\1 Account:\2"
The quantity between curly brackets "{}" is an exact number of characters to match.
The first ".{4}" will match, and ignore, the first four characters of track 1.
The "(.{20})" will match the next 20 characters which can be specified in the replace text
as "\1".
The next ".*" skips past the remainder of track 1 data.
The "([0-9]{10})" says to match exactly 10 digits and make them available as "\2"
because this is the second set of parenthesis.
The "[0-9]" means any character in the set from '0' to '9'. This may also be represented as
"[0123456789]".
Example 3
As a third example, we can identify the data between "delimiter" characters. Often, a cardholder
name is found between '^' characters.
Match: "\^([^^]+)\^.*T2:.*=([0-9]{20})"
Replace: "Name:\1 Account:\2"
The leading "\^" means to match the '^' character, not the start of the data.
The backslash '\' removes the "special" meaning of the '^'.
The "([^^]+)" may seem complicated. Remember that the "[...]" identifies a set of
characters to match. If there is a leading '^' in the set, it means to match anything
*except* the characters in the set. For example, "[^abc]" means any characters except for
'a', 'b', and 'c'. The second '^' in the set has *no* special meaning and is interpreted as a
literal '^' character. So, this means to match any characters *except* a '^'.
The plus sign '+' means to match one or more of the characters designated by the set, so
this will match one or more characters up to, but not including, the next '^' character. The
result is that we identify all characters between a pair of '^' characters and assign this to
"\1" for replacement.
After the "T2:" we have ".*=" which will match any characters and then an equal sign.
Following the equal sign is "([0-9]{20})" which will match a 20 digit account number.