get_scopes - 2020.2 English

Get a list of children HDL scopes of a scope

Syntax

get_scopes [‑filter <arg>] [‑regexp] [‑nocase] [‑r] [‑quiet] [‑verbose]
    [<patterns>...]

Returns

Returns HDL scope objects from the given arguments

Usage

Name	Description
`[-filter]`	filters <patterns> according to the specified property-matching expressions
`[-regexp]`	interprets <patterns> using regular expressions
`[-nocase]`	only when regexp is used, performs a case insensitive match
`[-r]`	only when a glob or regular expression pattern is used, descends recursively into children scopes to search for <patterns>
`[-quiet]`	Ignore command errors
`[-verbose]`	Suspend message limits during command execution
`[<patterns>]`	the pattern strings to search for scopes. Default: * (all children scopes)

Description

Get a list of children HDL scopes of the current or specified scope

This command returns a list of scope objects, or returns an error.

Arguments

-r - (Optional) Recursively return the children scopes of the current scope.

-regexp - (Optional) Specifies that the search <patterns> are written as regular expressions. Both search <patterns> and -filter expressions must be written as regular expressions when this argument is used. Xilinx regular expression Tcl commands are always anchored to the start of the search string. You can add ".*" to the beginning or end of a search string to widen the search to include a substring. See http://perldoc.perl.org/perlre.html for help with regular expression syntax.

Note: The Tcl built-in command regexp is not anchored, and works as a standard Tcl command. For more information refer to http://www.tcl.tk/man/tcl8.5/TclCmd/regexp.htm.

-nocase - (Optional) Perform case-insensitive matching when a pattern has been specified. This argument applies to the use of -regexp only.

-filter <args> - (Optional) Filter the returned results list with the specified expression. The -filter argument filters the list of objects returned by get_scopes based on property values on the scope objects. You can find the properties on an object with the report_property or list_property commands.

The filter search pattern should be quoted to avoid having to escape special characters that may be found in net, pin, or cell names, or other properties. String matching is case-sensitive and is always anchored to the start and to the end of the search string. The wildcard “*” character can be used at the beginning or at the end of a search string to widen the search to include a substring of the property value.

Note: The filter returns an object if a specified property exists on the object, and the specified pattern matches the property value on the object. In the case of the "*" wildcard character, this will match a property with a defined value of "".

For string comparison, the specific operators that can be used in filter expressions are "equal" (==), "not-equal" (!=), "match" (=~), and "not-match" (!~). Numeric comparison operators <, >, <=, and >= can also be used. Multiple filter expressions can be joined by AND and OR (&& and ||). The following gets input pins that do NOT contain the “RESET” substring within their name:

get_pins * -filter {DIRECTION == IN && NAME !~ "*RESET*"}

Boolean (bool) type properties can be directly evaluated in filter expressions as true or not true:

-filter {IS_PRIMITIVE && !IS_LOC_FIXED}

-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.

Note: Any errors encountered on the command-line, while launching the command, will be returned. Only errors occurring inside the command will be trapped.

-verbose - (Optional) Temporarily override any message limits and return all messages from this command.

Note: Message limits can be defined with the set_msg_config command.

<patterns> - (Optional) Match Scope objects against the specified patterns. The default pattern is the wildcard '*' which gets a list of all Scopes that are children of the current scope. More than one pattern can be specified to find multiple Scope objects based on different search criteria.

Note: You must enclose multiple search patterns in braces {} to present the list as a single element.

Examples

The following example recursively returns all of the children scopes of the specified scope:

get_scopes -r /testbench/dut