general interpreter settings


Version 2.41 Mar2009


Manual page for general_interpreter_settings(PL)

General interpreter settings

The #mode directive can be used to make general settings that affect how the QUISP template interpreter behaves.


#mode

Set various operational modes.

Usage: #mode attribute value

attribute may be one of the following:

allowinlinecodes

If value is yes, evaluate inline codes found in script content. These are formatting codes particular to this software, that are useful in certain specialized formatting operations. Example: allowinlinecodes yes

error_mode

Default is stderr, so that error messages are written to standard error. This may be set to stdout for error messages to be written to standard output.

dot_in_varnames

Specifies whether variable names may contain periods (.). Default is yes, which is convenient with SQL applications since join results are named using a period.
Example: #mode dot_in_varnames no

evalvars

Default is yes. Use no to turn off evaluation of variables.
Example: #mode evalvars no

nullrep

This determines how NULL database fields will be represented. Allowable values are blank, null, nbsp, and noconvert. The default is blank which causes NULLs to be converted to zero length strings. Use nbsp to convert NULLs to the HTML non-breaking space character   This should be invoked before result rows are fetched. Conversion occurs after the row is retrieved from the database.


Example: #mode  nullrep  nbsp



shellmetachars

This specifies the set of characters that are to be screened out of variables that are present when building a shell command (see the opening paragraphs of the #shell man page ). There should be no embedded whitespace. This can also be set in the project config file
Default set of shell metacharacters is: "'`$\;
Example: #mode shellmetachars "'`

suppressdll

value should be yes to suppress data-less lines, and no to show data-less lines. Default is no. A data-less line is a line having one or more variables, all of which evaluate to a zero-length value. Suppressing data-less lines is sometimes useful, for example, when displaying multi-line entities such as postal addresses.


Database mode settings

See also the shsql SQLMODE command, which can be used to make certain database-specific settings.





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