--- gforth/stuff.fs 2006/05/07 05:46:47 1.51 +++ gforth/stuff.fs 2011/10/06 20:04:35 1.68 @@ -1,12 +1,12 @@ \ miscelleneous words -\ Copyright (C) 1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc. +\ Copyright (C) 1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc. \ This file is part of Gforth. \ Gforth is free software; you can redistribute it and/or \ modify it under the terms of the GNU General Public License -\ as published by the Free Software Foundation; either version 2 +\ as published by the Free Software Foundation, either version 3 \ of the License, or (at your option) any later version. \ This program is distributed in the hope that it will be useful, @@ -15,8 +15,7 @@ \ GNU General Public License for more details. \ You should have received a copy of the GNU General Public License -\ along with this program; if not, write to the Free Software -\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. +\ along with this program. If not, see http://www.gnu.org/licenses/. require glocals.fs @@ -149,14 +148,16 @@ AUser CSP : compile-compile-2literal ( n1 n2 -- ) compile-2literal postpone compile-2literal ; -: [[ ( -- ) +: [[ ( -- ) \ gforth left-bracket-bracket \G switch from postpone state to compile state \ this is only a marker; it is never really interpreted compile-only-error ; immediate [ifdef] compiler1 : postponer1 ( c-addr u -- ... xt ) - 2dup find-name dup if ( c-addr u nt ) + 2dup find-name + [ifdef] run-prelude run-prelude [then] + dup if ( c-addr u nt ) nip nip name>comp 2dup [comp'] [[ d= if 2drop ['] compiler1 is parser1 ['] noop @@ -177,12 +178,44 @@ AUser CSP THEN then ; -: ]] ( -- ) - \ switch into postpone state +: ]] ( -- ) \ gforth right-bracket-bracket + \G switch into postpone state ['] postponer1 is parser1 state on ; immediate restrict +[then] +[ifdef] compiler-r +: postponer-r ( addr u -- ... xt ) + forth-recognizer do-recognizer + over [ s" [[" find-name ] Literal = + IF 2drop [comp'] ] drop ELSE ['] >postpone THEN ; + +: ]] ( -- ) \ gforth right-bracket-bracket + \G switch into postpone state + ['] postponer-r is parser1 state on ; immediate restrict [then] +comp' literal drop alias postpone-literal +comp' 2literal drop alias postpone-2literal +comp' fliteral drop alias postpone-fliteral +comp' sliteral drop alias postpone-sliteral + +: ]]L ( postponing: x -- ; compiling: -- x ) \ gforth right-bracket-bracket-l +\G Shortcut for @code{]] literal}. + ]] postpone-literal ]] [[ ; immediate + +: ]]2L ( postponing: x1 x2 -- ; compiling: -- x1 x2 ) \ gforth right-bracket-bracket-two-l +\G Shortcut for @code{]] 2literal}. + ]] postpone-2literal ]] [[ ; immediate + +: ]]FL ( postponing: r -- ; compiling: -- r ) \ gforth right-bracket-bracket-f-l +\G Shortcut for @code{]] fliteral}. + ]] postpone-fliteral ]] [[ ; immediate + +: ]]SL ( postponing: addr1 u -- ; compiling: -- addr2 u ) \ gforth right-bracket-bracket-s-l +\G Shortcut for @code{]] sliteral}; if the string already has been +\G allocated permanently, you can use @code{]]2L} instead. + ]] postpone-sliteral ]] [[ ; immediate + \ f.rdp : push-right ( c-addr u1 u2 cfill -- ) @@ -351,4 +384,82 @@ previous ' uw@ alias w@ ( addr -- u ) ' ul@ alias l@ ( addr -- u ) \ ' sw@ alias IF + >r r@ file-size throw r> reposition-file throw + BEGIN refill 0= UNTIL postpone \ THEN ; immediate + +\ WORD SWORD + +: sword ( char -- addr len ) \ gforth-obsolete s-word +\G Parses like @code{word}, but the output is like @code{parse} output. +\G @xref{core-idef}. + \ this word was called PARSE-WORD until 0.3.0, but Open Firmware and + \ dpANS6 A.6.2.2008 have a word with that name that behaves + \ differently (like NAME). + source 2dup >r >r >in @ over min /string + rot dup bl = IF + drop (parse-white) + ELSE + (word) + THEN +[ has? new-input [IF] ] + 2dup input-lexeme! +[ [THEN] ] + 2dup + r> - 1+ r> min >in ! ; + +: word ( char "ccc-- c-addr ) \ core + \G Skip leading delimiters. Parse @i{ccc}, delimited by + \G @i{char}, in the parse area. @i{c-addr} is the address of a + \G transient region containing the parsed string in + \G counted-string format. If the parse area was empty or + \G contained no characters other than delimiters, the resulting + \G string has zero length. A program may replace characters within + \G the counted string. OBSOLESCENT: the counted string has a + \G trailing space that is not included in its length. + sword here place bl here count + c! here ;