version 1.65, 2009/12/31 15:32:35
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version 1.72, 2012/02/09 18:23:29
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\ miscelleneous words |
\ miscelleneous words |
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\ Copyright (C) 1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc. |
\ Copyright (C) 1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program. If not, see http://www.gnu.org/licenses/. |
\ along with this program. If not, see http://www.gnu.org/licenses/. |
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require glocals.fs |
: save-mem-dict ( addr1 u -- addr2 u ) |
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here swap dup allot ( addr1 addr2 u ) |
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2dup 2>r move 2r> ; |
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' usable-dictionary-end @ dodefer: = [if] |
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require glocals.fs |
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[else] |
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require glocals-1.60.fs |
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[then] |
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' require alias needs ( ... "name" -- ... ) \ gforth |
' require alias needs ( ... "name" -- ... ) \ gforth |
\G An alias for @code{require}; exists on other systems (e.g., Win32Forth). |
\G An alias for @code{require}; exists on other systems (e.g., Win32Forth). |
Line 136 AUser CSP
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Line 145 AUser CSP
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\ ]] ... [[ |
\ ]] ... [[ |
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: [[ ( -- ) \ gforth left-bracket-bracket |
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\G switch from postpone state to compile state |
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\ this is only a marker; it is never really interpreted |
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compile-only-error ; immediate |
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[ifdef] compiler1 |
: compile-literal ( n -- ) |
: compile-literal ( n -- ) |
postpone literal ; |
postpone literal ; |
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Line 148 AUser CSP
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Line 163 AUser CSP
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: compile-compile-2literal ( n1 n2 -- ) |
: compile-compile-2literal ( n1 n2 -- ) |
compile-2literal postpone compile-2literal ; |
compile-2literal postpone compile-2literal ; |
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: [[ ( -- ) \ gforth left-bracket-bracket |
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\G switch from postpone state to compile state |
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\ this is only a marker; it is never really interpreted |
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compile-only-error ; immediate |
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[ifdef] compiler1 |
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: postponer1 ( c-addr u -- ... xt ) |
: postponer1 ( c-addr u -- ... xt ) |
2dup find-name |
2dup find-name |
[ifdef] run-prelude run-prelude [then] |
[ifdef] run-prelude run-prelude [then] |
Line 181 AUser CSP
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Line 190 AUser CSP
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: ]] ( -- ) \ gforth right-bracket-bracket |
: ]] ( -- ) \ gforth right-bracket-bracket |
\G switch into postpone state |
\G switch into postpone state |
['] postponer1 is parser1 state on ; immediate restrict |
['] postponer1 is parser1 state on ; immediate restrict |
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[then] |
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[ifdef] compiler-r |
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: postponer-r ( addr u -- ... xt ) |
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forth-recognizer do-recognizer |
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over [ s" [[" find-name ] Literal = |
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IF 2drop [comp'] ] drop ELSE ['] >postpone THEN ; |
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: ]] ( -- ) \ gforth right-bracket-bracket |
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\G switch into postpone state |
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['] postponer-r is parser1 state on ; immediate restrict |
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[then] |
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comp' literal drop alias postpone-literal |
comp' literal drop alias postpone-literal |
comp' 2literal drop alias postpone-2literal |
comp' 2literal drop alias postpone-2literal |
Line 204 comp' sliteral drop alias postpone-slite
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Line 225 comp' sliteral drop alias postpone-slite
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\G allocated permanently, you can use @code{]]2L} instead. |
\G allocated permanently, you can use @code{]]2L} instead. |
]] postpone-sliteral ]] [[ ; immediate |
]] postpone-sliteral ]] [[ ; immediate |
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[then] |
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\ f.rdp |
\ f.rdp |
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: push-right ( c-addr u1 u2 cfill -- ) |
: push-right ( c-addr u1 u2 cfill -- ) |
Line 423 previous
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Line 442 previous
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source-id dup 0> IF |
source-id dup 0> IF |
>r r@ file-size throw r> reposition-file throw |
>r r@ file-size throw r> reposition-file throw |
BEGIN refill 0= UNTIL postpone \ THEN ; immediate |
BEGIN refill 0= UNTIL postpone \ THEN ; immediate |
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\ WORD SWORD |
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: sword ( char -- addr len ) \ gforth-obsolete s-word |
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\G Parses like @code{word}, but the output is like @code{parse} output. |
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\G @xref{core-idef}. |
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\ this word was called PARSE-WORD until 0.3.0, but Open Firmware and |
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\ dpANS6 A.6.2.2008 have a word with that name that behaves |
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\ differently (like NAME). |
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source 2dup >r >r >in @ over min /string |
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rot dup bl = IF |
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drop (parse-white) |
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ELSE |
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(word) |
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THEN |
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[ has? new-input [IF] ] |
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2dup input-lexeme! |
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[ [THEN] ] |
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2dup + r> - 1+ r> min >in ! ; |
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: word ( char "<chars>ccc<char>-- c-addr ) \ core |
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\G Skip leading delimiters. Parse @i{ccc}, delimited by |
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\G @i{char}, in the parse area. @i{c-addr} is the address of a |
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\G transient region containing the parsed string in |
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\G counted-string format. If the parse area was empty or |
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\G contained no characters other than delimiters, the resulting |
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\G string has zero length. A program may replace characters within |
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\G the counted string. OBSOLESCENT: the counted string has a |
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\G trailing space that is not included in its length. |
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sword here place bl here count + c! here ; |
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\ quotations |
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:noname false :noname ; |
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:noname locals-wordlist last @ lastcfa @ |
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postpone AHEAD |
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locals-list @ locals-list off |
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postpone SCOPE |
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true :noname ; |
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interpret/compile: [: ( compile-time: -- quotation-sys ) \ gforth bracket-colon |
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\G Starts a quotation |
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: ;] ( compile-time: quotation-sys -- ; run-time: -- xt ) \ gforth semi-bracket |
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\g ends a quotation |
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POSTPONE ; >r IF |
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] postpone ENDSCOPE |
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locals-list ! |
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postpone THEN |
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lastcfa ! last ! to locals-wordlist |
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r> postpone ALiteral |
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ELSE r> THEN ( xt ) ; immediate |