HP 3000 Manuals

USING VPLUS/V AN INTRO. TO FORMS DESIGN Self-Paced Training Guide

USE PATTERN MATCHES 

Now you should be at the Field Menu for the field, ZIP.

Action 

Press FIELD TOGGLE. Type MATCH ddddd[-dddd] in the lower menu, as shown
in Figure 4-7.  Press ENTER.

Here you use a pattern match to make sure that any entered zip code is
five digits with, optionally, four more digits with a hyphen between the
fifth and sixth digit.


          Figure 4-8.  Field Menu for PHONE in the ORDER Form 

A good illustration that uses some of the pattern characters is the match
pattern for a telephone number.

Action 

Press FIELD TOGGLE. Type MATCH [(ddd)]b*ddd-dddd in the lower menu, as
shown in Figure 4-8.  Press ENTER.

The brackets surrounding the area code allow it to be omitted.  The
asterisk (*) after the letter b allows zero spaces or as many as you
want.  Table 4-5 illustrates some other examples of pattern choices.

          Table 4-5.  Pattern Choices 

--------------------------------------------------------------------------------------------
|                       |                                                                  |
|        Pattern        |                             Meaning                              |
|                       |                                                                  |
--------------------------------------------------------------------------------------------
|                       |                                                                  |
| {A,B,!a,!b}           | Required grouping - Entered character corresponding to this      |
|                       | pattern must be A, B, a, or b.                                   |
|                       |                                                                  |
| [A,B,!a,!b]           | Optional grouping - No character need be specified in this       |
|                       | position or, if entered, it must be A, B, a, or b.               |
|                       |                                                                  |
| d+                    | Required repetition - At least one digit must be entered, and as |
|                       | many more digits as desired may be entered.                      |
|                       |                                                                  |
| d*                    | Optional repetition - No digit need be entered in this position, |
|                       | or as many digits as desired may be entered.                     |
|                       |                                                                  |
| {A,B,!a,!b}+          | Any of the enclosed characters can each be repeated as many      |
|                       | times as desired - for example:  BBBBaab.                        |
|                       |                                                                  |
| {A,B,!a,!b}*          | No character need be specified, or any of the enclosed           |
|                       | characters can be repeated.                                      |
|                       |                                                                  |
--------------------------------------------------------------------------------------------


          Figure 4-9.  Field Menu for PARTNUM in the ORDER Form 

When you press ENTER at the Field Menu for PHONE, the Field Menu for QTY,
which was shown earlier in Figure 4-5, is displayed on your terminal
screen.

Action 

Press NEXT to display the Field Menu for PARTNUM.

A part number also provides a good example of how to use a pattern match.

Action 

Press FIELD TOGGLE. Type MATCH Puddd-???  in the lower menu, as shown in
Figure 4-9.  Press ENTER.

A part number such as PS123-XYZ or PC999-001 is accepted by the pattern
match statement shown above, but Pa222-001 or BA123-TTT would cause an
error.


          Figure 4-10.  Field Menu for ORDATE in the ORDER Form 

MPE/iX 5.0 Documentation