Create an error message in allocated memory and set state->err and state->msg accordingly. Free any previous error message already there. Do n

** Pushes on the stack a string with given length. Avoid using 's' when ** 'len' == 0 (as 's' can be NULL in that case), due to later use of ** 'memcm

** Ensures final expression result is in some (any) register ** and return that register. */

Returns the capacity of this buffer. */

///////////////////////////////////////////////////////////////////////////

Destroys the stored value if one exists, making the optional empty

** Test whether next token is 'c'; if so, skip it. */

========================================================================= */

finds element with specific key

** Check that next token is 'c' and skip it. */