| \ miscelleneous words |
\ miscelleneous words |
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| \ Copyright (C) 1996,1997,1998,2000,2003,2004,2005,2006,2007 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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: 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] |
| require glocals.fs |
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). |
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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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| : compile-compile-2literal ( n1 n2 -- ) |
: compile-compile-2literal ( n1 n2 -- ) |
| compile-2literal postpone compile-2literal ; |
compile-2literal postpone compile-2literal ; |
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| : [[ ( -- ) |
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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 dup if ( c-addr u nt ) |
2dup find-name |
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[ifdef] run-prelude run-prelude [then] |
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dup if ( c-addr u nt ) |
| nip nip name>comp |
nip nip name>comp |
| 2dup [comp'] [[ d= if |
2dup [comp'] [[ d= if |
| 2drop ['] compiler1 is parser1 ['] noop |
2drop ['] compiler1 is parser1 ['] noop |
| THEN |
THEN |
| then ; |
then ; |
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| : ]] ( -- ) |
: ]] ( -- ) \ gforth right-bracket-bracket |
| \ 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 |
| [then] |
[then] |
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comp' literal drop alias postpone-literal |
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comp' 2literal drop alias postpone-2literal |
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comp' fliteral drop alias postpone-fliteral |
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comp' sliteral drop alias postpone-sliteral |
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: ]]L ( postponing: x -- ; compiling: -- x ) \ gforth right-bracket-bracket-l |
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\G Shortcut for @code{]] literal}. |
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]] postpone-literal ]] [[ ; immediate |
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: ]]2L ( postponing: x1 x2 -- ; compiling: -- x1 x2 ) \ gforth right-bracket-bracket-two-l |
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\G Shortcut for @code{]] 2literal}. |
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]] postpone-2literal ]] [[ ; immediate |
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: ]]FL ( postponing: r -- ; compiling: -- r ) \ gforth right-bracket-bracket-f-l |
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\G Shortcut for @code{]] fliteral}. |
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]] postpone-fliteral ]] [[ ; immediate |
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: ]]SL ( postponing: addr1 u -- ; compiling: -- addr2 u ) \ gforth right-bracket-bracket-s-l |
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\G Shortcut for @code{]] sliteral}; if the string already has been |
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\G allocated permanently, you can use @code{]]2L} instead. |
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]] postpone-sliteral ]] [[ ; immediate |
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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 -- ) |
| endtry |
endtry |
| throw ; |
throw ; |
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\ th |
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: th ( addr1 u -- addr2 ) |
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cells + ; |
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\ \\\ - skip to end of file |
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: \\\ ( -- ) \ gforth |
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\G skip remaining source file |
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source-id dup 0> IF |
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>r r@ file-size throw r> reposition-file throw |
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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 ; |
