dcg

Prolog files

basics.pl  -- Various general DCG utilities
alpha_to_lower/3	Read a letter (class alpha) and return it as a lowercase letter.
atom/3	Generate codes of Atom.
blank/2	Take next space character from input.
blanks/2	Skip zero or more white-space characters.
blanks_to_nl/2	Take a sequence of blank//0 codes if blanks are followed by a newline or end of the input.
csym/3	Recognise a C symbol according to the csymf and csym code type classification provided by the C library.
digit/3	Number processing.
digits/3	Number processing.
eol/2	Matches end-of-line.
eos/2	Matches end-of-input.
float/3	Process a floating point number.
integer/3	Number processing.
nonblank/3	Code is the next non-blank (graph) character.
nonblanks/3	Take all graph characters.
number/3	Generate extract a number.
prolog_var_name/3	Matches a Prolog variable name.
remainder/3	Unify List with the remainder of the input.
string/3	Take as few as possible tokens from the input, taking one more each time on backtracking.
string_without/4	Take as many codes from the input until the next character code appears in the list EndCodes.
white/2	Take next white character from input.
whites/2	Skip white space inside a line.
xdigit/3	True if the next code is a hexdecimal digit with Weight.
xdigits/3	List of weights of a sequence of hexadecimal codes.
xinteger/3	Generate or extract an integer from a sequence of hexadecimal digits.
high_order.pl  -- High order grammar operations
foreach/4	Generate a list from the solutions of Generator.
foreach/5	Generate a list from the solutions of Generator.
optional/4	Perform an optional match, executing Default if Match is not matched.
sequence/4	Match or generate a sequence of Element.
sequence/5	Match or generate a sequence of Element where each pair of elements is separated by Sep.
sequence/7	Match or generate a sequence of Element enclosed by Start end End, where each pair of elements is separated by Sep.