snvalid (symbolname valid) Determine whether the symbol is made-up of valid characters.
This function tests whether a given symbol would be a valid name within the symbol tables, including "LAYER", "LTYPE", "VIEW", "STYLE", "BLOCK", "UCS", "VPORT", "DIMSTYLE", and "APPID".
The optional flag argument toggles whether the vertical bar ( | ) character is valid:
| Flag | Meaning |
|---|---|
| 0 | vertical bar is NOT allowed. |
| 1 | vertical bar is allowed. |
Examples
| Code |
Returns |
Remark |
|---|---|---|
|
(snvalid "Foo Bar") |
T |
|
|
(snvalid " Foo Bar ") |
NIL |
leading / trailing space |
|
(snvalid "Foo|Bar") |
NIL |
vertical bar illegal by default |
|
(snvalid "Foo|Bar" 1) |
T |
flag=1 accept vertical bar (|) |
Tell me about...
(tblsearch table-name symbol [flag])
Programming Overview of LISP (LISt Processing) Language
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