Diff for /gforth/source.fs between versions 1.13 and 1.23

version 1.13, 2003/01/22 10:59:54 version 1.23, 2011/12/31 15:29:25
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 \ source location handling  \ source location handling
   
 \ Copyright (C) 1995,1997 Free Software Foundation, Inc.  \ Copyright (C) 1995,1997,2003,2004,2007,2009,2011 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
 \ Gforth is free software; you can redistribute it and/or  \ Gforth is free software; you can redistribute it and/or
 \ modify it under the terms of the GNU General Public License  \ 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.  \ of the License, or (at your option) any later version.
   
 \ This program is distributed in the hope that it will be useful,  \ This program is distributed in the hope that it will be useful,
Line 15 Line 15
 \ GNU General Public License for more details.  \ GNU General Public License for more details.
   
 \ 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, write to the Free Software  \ along with this program. If not, see http://www.gnu.org/licenses/.
 \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  
   
 \ related stuff can be found in kernel.fs  \ related stuff can be found in kernel.fs
   
Line 32 Line 31
             rdrop 2drop i unloop exit              rdrop 2drop i unloop exit
         endif          endif
         r> loop          r> loop
     drop 2drop 0 ;      drop 2drop -1 ;
   
 : compile-sourcepos ( compile-time: -- ; run-time: -- nfile nline )  \ we encode line and character in one cell to keep the interface the same
   : encode-pos ( nline nchar -- npos )
       $ff min swap 8 lshift + ;
   
   : decode-pos ( npos -- nline nchar )
       dup 8 rshift swap $ff and ;
   
   : current-sourcepos ( -- nfile npos )
       sourcefilename  str>loadfilename# sourceline# >in @ encode-pos ;
   
   : compile-sourcepos ( compile-time: -- ; run-time: -- nfile npos )
     \ compile the current source position as literals: nfile is the      \ compile the current source position as literals: nfile is the
     \ source file index, nline the line number within the file.      \ source file index, nline the line number within the file.
     sourcefilename str>loadfilename# postpone literal      current-sourcepos
     sourceline# postpone literal ;      swap postpone literal
       postpone literal ;
   
 : .sourcepos ( nfile nline -- )  : .sourcepos ( nfile npos -- )
     \ print source position      \ print source position
     swap loadfilename#>str type ." :"      swap loadfilename#>str type ': emit
     base @ decimal swap 0 .r base ! ;      base @ decimal
       swap decode-pos swap 0 .r ': emit 0 .r
       base ! ;
   
   : save-source-filename ( c-addr1 u1 -- c-addr2 u2 )
       \ c-addr1 u1 is a temporary string for a file name, c-addr2 u2 is
       \ a permanent one.  Reuses strings for the same file names and
       \ adds them to the included files (not sure if that's a good idea)
       2dup str>loadfilename# dup 0< if
           drop save-mem 2dup add-included-file
       else
           nip nip loadfilename#>str
       then ;
   
   : #line ( "u" "["file"]" -- )
       \g Set the line number to @i{u} and (if present) the file name to @i{file}.  Consumes the rest of the line.
       \g 
       parse-name ['] evaluate 10 base-execute 1- loadline !
       '"' parse 2drop '"' parse dup if
           save-source-filename loadfilename 2!
       else
           2drop
       then
       postpone \ ;

Removed from v.1.13  
changed lines
  Added in v.1.23


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