new accessors

db4
Doug Coleman 2008-09-02 03:04:34 -05:00
parent f98b424d18
commit 27ab6d699c
1 changed files with 14 additions and 14 deletions

View File

@ -59,7 +59,7 @@ C: <token-parser> token-parser
: case-insensitive-token ( string -- parser ) t <token-parser> ; : case-insensitive-token ( string -- parser ) t <token-parser> ;
M: token-parser parse ( input parser -- list ) M: token-parser parse ( input parser -- list )
dup token-parser-string swap token-parser-ignore-case? [ string>> ] [ ignore-case?>> ] bi
>r tuck r> ?string-head >r tuck r> ?string-head
[ <parse-results> ] [ 2drop nil ] if ; [ <parse-results> ] [ 2drop nil ] if ;
@ -76,7 +76,7 @@ M: satisfy-parser parse ( input parser -- list )
over empty? [ over empty? [
2drop nil 2drop nil
] [ ] [
satisfy-parser-quot >r unclip-slice dup r> call quot>> >r unclip-slice dup r> call
[ swap <parse-results> ] [ 2drop nil ] if [ swap <parse-results> ] [ 2drop nil ] if
] if ; ] if ;
@ -101,7 +101,7 @@ C: succeed succeed-parser ( result -- parser )
M: succeed-parser parse ( input parser -- list ) M: succeed-parser parse ( input parser -- list )
#! A parser that always returns 'result' as a #! A parser that always returns 'result' as a
#! successful parse with no input consumed. #! successful parse with no input consumed.
succeed-parser-result swap <parse-results> ; result>> swap <parse-results> ;
TUPLE: fail-parser ; TUPLE: fail-parser ;
@ -118,7 +118,7 @@ TUPLE: ensure-parser test ;
ensure-parser boa ; ensure-parser boa ;
M: ensure-parser parse ( input parser -- list ) M: ensure-parser parse ( input parser -- list )
2dup ensure-parser-test parse nil? 2dup test>> parse nil?
[ 2drop nil ] [ drop t swap <parse-results> ] if ; [ 2drop nil ] [ drop t swap <parse-results> ] if ;
TUPLE: ensure-not-parser test ; TUPLE: ensure-not-parser test ;
@ -127,7 +127,7 @@ TUPLE: ensure-not-parser test ;
ensure-not-parser boa ; ensure-not-parser boa ;
M: ensure-not-parser parse ( input parser -- list ) M: ensure-not-parser parse ( input parser -- list )
2dup ensure-not-parser-test parse nil? 2dup test>> parse nil?
[ drop t swap <parse-results> ] [ 2drop nil ] if ; [ drop t swap <parse-results> ] [ 2drop nil ] if ;
TUPLE: and-parser parsers ; TUPLE: and-parser parsers ;
@ -157,7 +157,7 @@ M: and-parser parse ( input parser -- list )
#! two parsers. First parser1 is applied to the #! two parsers. First parser1 is applied to the
#! input then parser2 is applied to the rest of #! input then parser2 is applied to the rest of
#! the input strings from the first parser. #! the input strings from the first parser.
and-parser-parsers unclip swapd parse parsers>> unclip swapd parse
[ [ and-parser-parse ] reduce ] 2curry promise ; [ [ and-parser-parse ] reduce ] 2curry promise ;
TUPLE: or-parser parsers ; TUPLE: or-parser parsers ;
@ -172,7 +172,7 @@ M: or-parser parse ( input parser1 -- list )
#! Return the combined list resulting from the parses #! Return the combined list resulting from the parses
#! of parser1 and parser2 being applied to the same #! of parser1 and parser2 being applied to the same
#! input. This implements the choice parsing operator. #! input. This implements the choice parsing operator.
or-parser-parsers 0 swap seq>list parsers>> 0 swap seq>list
[ parse ] lazy-map-with lconcat ; [ parse ] lazy-map-with lconcat ;
: left-trim-slice ( string -- string ) : left-trim-slice ( string -- string )
@ -191,7 +191,7 @@ C: sp sp-parser ( p1 -- parser )
M: sp-parser parse ( input parser -- list ) M: sp-parser parse ( input parser -- list )
#! Skip all leading whitespace from the input then call #! Skip all leading whitespace from the input then call
#! the parser on the remaining input. #! the parser on the remaining input.
>r left-trim-slice r> sp-parser-p1 parse ; >r left-trim-slice r> p1>> parse ;
TUPLE: just-parser p1 ; TUPLE: just-parser p1 ;
@ -202,7 +202,7 @@ M: just-parser parse ( input parser -- result )
#! from the results anything where the remaining #! from the results anything where the remaining
#! input to be parsed is not empty. So ensures a #! input to be parsed is not empty. So ensures a
#! fully parsed input string. #! fully parsed input string.
just-parser-p1 parse [ parse-result-unparsed empty? ] lfilter ; p1>> parse [ unparsed>> empty? ] lfilter ;
TUPLE: apply-parser p1 quot ; TUPLE: apply-parser p1 quot ;
@ -214,10 +214,10 @@ M: apply-parser parse ( input parser -- result )
#! The result of that quotation then becomes the new parse result. #! The result of that quotation then becomes the new parse result.
#! This allows modification of parse tree results (like #! This allows modification of parse tree results (like
#! converting strings to integers, etc). #! converting strings to integers, etc).
[ apply-parser-p1 ] keep apply-parser-quot [ p1>> ] [ quot>> ] bi
-rot parse [ -rot parse [
[ parse-result-parsed swap call ] keep [ parsed>> swap call ] keep
parse-result-unparsed <parse-result> unparsed>> <parse-result>
] lazy-map-with ; ] lazy-map-with ;
TUPLE: some-parser p1 ; TUPLE: some-parser p1 ;
@ -229,7 +229,7 @@ M: some-parser parse ( input parser -- result )
#! the parse is complete (the remaining input is empty), #! the parse is complete (the remaining input is empty),
#! picks the first solution and only returns the parse #! picks the first solution and only returns the parse
#! tree since the remaining input is empty. #! tree since the remaining input is empty.
some-parser-p1 just parse-1 ; p1>> just parse-1 ;
: <& ( parser1 parser2 -- parser ) : <& ( parser1 parser2 -- parser )
#! Same as <&> except discard the results of the second parser. #! Same as <&> except discard the results of the second parser.
@ -272,7 +272,7 @@ LAZY: only-first ( parser -- parser )
M: only-first-parser parse ( input parser -- list ) M: only-first-parser parse ( input parser -- list )
#! Transform a parser into a parser that only yields #! Transform a parser into a parser that only yields
#! the first possibility. #! the first possibility.
only-first-parser-p1 parse 1 swap ltake ; p1>> parse 1 swap ltake ;
LAZY: <!*> ( parser -- parser ) LAZY: <!*> ( parser -- parser )
#! Like <*> but only return one possible result #! Like <*> but only return one possible result