How to escape special chars - (for example, / \ ; : " | ? ' * ).

Question

Example - 
 Validation: Filename cannot contain special characters (for example, / \ ; : " | ? ' < > * ). 
 
 Expression evaluation error: Syntax error. Details: Expression evaluation error : Invalid character found in expression: |

ravib950399 · Accepted Answer

that did not work - need to show the validation message on the screen for fileupload component

a!fileUploadField(
label: "Upload File",
target: cons!FOLDER_CONSTANT,
value: ri!uploadedFile,
saveInto: ri!uploadedFile,

validations: if(
and(
not(isnull(ri!uploadedFile)),
length(stripwith(ri!uploadedFile.name, "\ / ; : "" | ? ' < > *")) <> length(ri!uploadedFile.name)
),
"Filename cannot contain special characters (for example, / \ ; : " | ? ' < > * )."
null
)
)

How to escape special chars - (for example, / \ ; : " | ? ' < > * ).