DDSL

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Contents

• Functions

Modules

• ddsl
• ddsl.xtypes
• ddsl.xtypes.utils
• ddsl.xtypes.xml
• ddsl.xtypes.xml.parser
• logger

Scripts

• xml2idl

Topics

• README
• CHANGELOG

Examples

• ddsl_tutorial.lua

Module ddsl.xtypes.utils

DDSL Utilities.

Info:

• Author: Rajive Joshi

Functions

nslookup (name, ns)	Look up the xtypes template referenced by a qualified name.
to_idl_string_table (instance[, result=nil[, indent_string='']])	Visit all elements (depth-first) of the datatype definition underlying an instance, and return the OMG IDL string representation of each member as a flattened array of strings.
to_instance_string_table (instance[, result=nil[, template=nil[, base=nil]]])	Visit all fields (depth-first) in the given instance and return their string representation as a flattened array of strings.

Functions

nslookup (name, ns)

Look up the xtypes template referenced by a qualified name.

Searches in several places:

• in the pre-defined xtypes,
• in the enclosing or global scope

Parameters:

• name string qualifed name (i.e. optionally scoped with ::) of the datatype to lookup
• ns xtemplate the scope (or namespace) to lookup the name in

Returns:

1. xtemplate the template referenced by name, or nil
2. optional string the template member, if any, identified by name (e.g. enum value)

to_idl_string_table (instance[, result=nil[, indent_string='']])

Visit all elements (depth-first) of the datatype definition underlying an instance, and return the OMG IDL string representation of each member as a flattened array of strings.

Parameters:

• instance xinstance a DDSL instance
• result {string,...} the previous results table, to which the new results from this visit are appended (default nil)
• indent_string string indentation for string representation (default '')

Returns:

{string,...} the cumulative result of visiting all the members of
datatype behind instance. The string representation of each member visited is inserted into this table. This returned table can be passed to another call to this method, to build a cumulative table of strings.

to_instance_string_table (instance[, result=nil[, template=nil[, base=nil]]])

Visit all fields (depth-first) in the given instance and return their string representation as a flattened array of strings.

For instance collections, only the 1st element is visited.

Parameters:

• instance xinstance the instance to visit
• result {string,...} the previous results table, to which the new results from this visit are appended (default nil)
• template xtemplate template to use to visit the instance; nil means use the instance's template (default nil)
• base xtemplate the base 'struct' template (if any) to visit the members of the the base 'struct' template (default nil)

Returns:

{string,...} the cumulative result of visiting all the fields. Each field that is visited is inserted into this table. This returned table can be passed to another call to this method, to build a cumulative table of instance strings.