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Diff for /gforth/history.fs between versions 1.1 and 1.6

version 1.1, 1994/10/18 15:57:17 version 1.6, 1995/06/07 10:05:05
Line 7 Line 7
 2Variable end^  2Variable end^
   
 : get-history ( addr len -- wid )  : get-history ( addr len -- wid )
   \  check-file-prefix drop
   2dup r/w open-file 0<    2dup r/w open-file 0<
   IF  drop r/w create-file throw  ELSE  nip nip  THEN    IF  drop r/w create-file throw  ELSE  nip nip  THEN
   to history    to history
   history file-size throw    history file-size throw
   2dup forward^ 2! 2dup backward^ 2! end^ 2! ;    2dup forward^ 2! 2dup backward^ 2! end^ 2! ;
   
 s" gforth.history" get-history  s" ~/.gforth-history" get-history
   
   : history-cold
       Defers 'cold
       s" ~/.gforth-history" get-history ;
   
   ' history-cold IS 'cold
   
 \ moving in history file                               16oct94py  \ moving in history file                               16oct94py
   
Line 36  s" gforth.history" get-history Line 43  s" gforth.history" get-history
   
 : prev-line  ( max span addr pos1 -- max span addr pos2 false )  : prev-line  ( max span addr pos1 -- max span addr pos2 false )
   clear-line over 2 + negate s>d backward^ 2@ d+ 0. dmax    clear-line over 2 + negate s>d backward^ 2@ d+ 0. dmax
   history reposition-file throw  0.    2dup history reposition-file throw
   BEGIN   2over swap history read-line throw nip  WHILE    BEGIN   2over swap history read-line throw  WHILE
           history file-position throw            >r history file-position throw
           2dup backward^ 2@ d<  WHILE  2swap 2drop            2dup backward^ 2@ d<  WHILE  2swap 2drop rdrop
   REPEAT  2drop  THEN    REPEAT  ELSE  >r history file-position throw  THEN
   history reposition-file throw get-line 0 ;    forward^ 2!  backward^ 2!  r> tuck 2dup type 0 ;
   
 : ctrl  ( "<char>" -- ctrl-code )  : ctrl  ( "<char>" -- ctrl-code )
   char [char] @ - postpone Literal ; immediate    char [char] @ - postpone Literal ; immediate
Line 75  Create prefix-found  0 , 0 , Line 82  Create prefix-found  0 , 0 ,
   IF  r> char+ capscomp 0<=  EXIT  THEN    IF  r> char+ capscomp 0<=  EXIT  THEN
   nip r> c@ $1F and < ;    nip r> c@ $1F and < ;
   
 : search-prefix  ( addr len1 -- suffix len2 )  : search-prefix  ( addr len1 -- suffix len2 )  0 >r  context
   context @ @  0 >r    BEGIN  BEGIN  dup @ over  cell - @ =  WHILE  cell -  REPEAT
   BEGIN  dup  WHILE           dup >r -rot r> @ @
          >r dup r@ cell+ c@ $1F and <=           BEGIN  dup  WHILE  >r dup r@ cell+ c@ $1F and <=
          IF  2dup r@ cell+ char+ capscomp  0=                  IF  2dup r@ cell+ char+ capscomp  0=
              IF  r> dup r@ word-lex                      IF  r> dup r@ word-lex
                  IF  dup prefix-found @ word-lex                          IF  dup prefix-found @ word-lex
                      0>= IF  rdrop dup >r  THEN                              0>= IF  rdrop dup >r  THEN
                  THEN >r                          THEN >r
              THEN                      THEN
          THEN  r> @                  THEN  r> @
   REPEAT drop r> dup prefix-found ! ?dup           REPEAT  drop rot cell -  dup vp u> 0=
     UNTIL  drop r> dup prefix-found ! ?dup
   IF    cell+ count $1F and rot /string rot drop    IF    cell+ count $1F and rot /string rot drop
   ELSE  2drop s" "  THEN  ;    ELSE  2drop s" "  THEN  ;
   
Removed from v.1.1  
changed lines
  Added in v.1.6

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