The characters A to Z, a to z, 0 to 9, slash (/), dash (-), and underscore (_) are legal for Quartus II breakpoint, chip, clique, directory, file, project, revision, group (bus), node, parameter, pin, pinstub, and quoted and unquoted symbolic names, with the exceptions listed below.
Item
Name Character Exception
file name
No slash (/) is permitted. Case is significant on UNIX and Linux workstations; all file names should be in lowercase letters. Case is also significant in Verilog HDL files.
project name
No slash (/) is permitted. Case is significant on UNIX and Linux workstations.
revision name
No slash (/) is permitted. Case is significant on UNIX and Linux workstations.
single-range group (bus) name
No slash (/) is permitted; the bus identifier cannot end with a digit. The name is followed by a range of numbers or arithmetic expressions in brackets. The start and end of the range are separated by two periods. For example, group a[3..1] consists of the nodes a3, a2, and a1. In Block Editor files only, sequential bus names can also include a series of single-range bus names. For example, a[8..0],dout[6..4].
design partition name
Partition names can have a maximum of 1024 characters. The name can consist only of alphanumeric characters, the colon (:), the pipe (|), and the underscore ( _ ) characters.
dual-range group (bus) name
Same as single-range group names, with two ranges of numbers or arithmetic expressions in brackets. For example, a[6..3][4..0].
sequential group (bus) name
The name consists of a series of comma-separated node names enclosed in parentheses. For example, group (a, b, c) consists of the nodes a, b, and c. In Block Editor files, parentheses are not used.
unquoted symbolic name (AHDL)
No dash (-) is permitted. Names cannot consist entirely of digits. AHDL keywords cannot be used.
Verilog HDL identifiers
No slash (/) or dash (-) is permitted. Dollar signs ($) are permitted. Names cannot begin with a digit or $. Case is significant. Verilog HDL keywords cannot be used.
VHDL names
No slash (/) or dash (-) is permitted. The name must start with a letter, cannot end with an underscore (_), and cannot contain two underscores (_ _) in a row. VHDL keywords cannot be used.
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