Xerox -05W, Руководство пользователя

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12-53
Creating A Script File
ONERROR
Syntax: ONERROR <action>
This command will perform the specified action when it encounters an error while the
script program is running, where
<action> can be one of the following:
REPORT will display a message box indicating the type of error and the
program line that caused it.
IGNORE will ignore any errors encountered in the program.
GOTO <label> will cause the program to go to the line with the specified label
when an error is encountered.
GOSUB <label> will cause the program to go to the line with the specified label
when an error is encountered and then
return to the line fol-
lowing the error.
Refer to the Script Error Trapping Functions section later in this chapter.
PACK
Syntax: PACK <result> <string>
This command will remove redundant spaces between ASCII characters in a string,
together with any spaces and tabs before and after the string, and place the resulting
string in a variable.
<result> is a previously defined string variable (see var ) which will contain the
modified string.
<string> is the string or variable containing the string to be packed.
This is useful to prevent an otherwise valid user response becoming invalid due to
extra spaces. See also
packtab .
PACKTAB
Syntax: PACKTAB <result> <string>
This command will reduce multiple spaces and/or tabs in a string into a single tab,
convert single spaces into tabs if a digit follows, and place the resulting string in a
variable.
<result> is a previously defined string variable (see var ) which will contain the
modified string.
<string> is the string or variable containing the string to be packed.
This is useful for making data suitable for a spreadsheet. See also pack .