grab_word(iter, state, delimiter) -> word, state

Grabs the next word from the iterator iter. Takes care to handle escaped delimiters specified by delimiter. Returns a string containing the word and the state of the iterator.

Looks for s in the params dict.

s is searched for both as a FCS standard keyword then as a user-defined keyword, with precendence given to the standard keywords. E.g. param_lookup(flowrun, "par") will look for both "$PAR" and "PAR" but return "$PAR" if it exists, otherwise "PAR".

In accordance with the FCS3.0 standard, the search is cas insensitive.

If no match is found, nothing is returned.

verify_text(text_mappings) -> Void

Checks that all required keywords are present in the textmapping dictionary returned by `parsetext`