c('PL_quote')

Availability:C-language interface function

char * PL_quote(int chr, const char *string)

Return a quoted version of string. If chr is '\'', the result is a quoted atom. If chr is '"', the result is a string. The result string is stored in the same ring of buffers as described with the BUF_STACK argument of PL_get_chars();

In the current implementation, the string is surrounded by chr and any occurrence of chr is doubled. In the future the behaviour will depend on the character_escapes Prolog flag.