diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ChangeLog | 4 | ||||
| -rw-r--r-- | src/interp/preparse.lisp | 31 | ||||
| -rw-r--r-- | src/interp/spad-parser.boot | 16 |
3 files changed, 24 insertions, 27 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index 4c04d2fd..02454e9d 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,7 @@ +2012-05-11 Gabriel Dos Reis <gdr@cs.tamu.edu> + + * interp/preparse.lisp (preparseReadLine1): Move to spad-parser.boot. + 2012-05-10 Igor Pashev <pashev.igor@gmail.com> * hyper/initx.c: Fixed spelling errors. diff --git a/src/interp/preparse.lisp b/src/interp/preparse.lisp index 0d9e7ff1..6adf49c6 100644 --- a/src/interp/preparse.lisp +++ b/src/interp/preparse.lisp @@ -66,7 +66,7 @@ (defparameter $INDEX 0 "File line number of most recently read line.") (defparameter |$preparseLastLine| () "Most recently read line.") (defparameter |$preparseReportIfTrue| NIL "Should we print listings?") -(defparameter $LineList nil "Stack of preparsed lines.") +(defparameter |$LineList| nil "Stack of preparsed lines.") (defparameter |$EchoLineStack| nil "Stack of lines to list.") (defparameter $IOIndex 0 "Number of latest terminal input line.") @@ -75,13 +75,13 @@ (DEFPARAMETER LABLASOC NIL) (defun Initialize-Preparse (strm) - (setq $INDEX 0 $LineList nil |$EchoLineStack| nil) + (setq $INDEX 0 |$LineList| nil |$EchoLineStack| nil) (setq |$preparseLastLine| (|readLine| strm))) (defvar $skipme) (defun |preparse1| (LineList) - (PROG (($LINELIST LineList) |$EchoLineStack| NUM A I L PSLOC + (PROG ((|$LineList| LineList) |$EchoLineStack| NUM A I L PSLOC INSTRING PCOUNT COMSYM STRSYM OPARSYM CPARSYM N NCOMSYM (SLOC -1) (CONTINUE NIL) (PARENLEV 0) (NCOMBLOCK ()) (LINES ()) (LOCS ()) (NUMS ()) functor ) @@ -125,7 +125,7 @@ (SETQ NCOMBLOCK (CONS N (CONS A (IFCDR NCOMBLOCK)))) (SETQ A "")) ('T (PUSH (STRCONC (|makeString| N #\Space) - (SUBSTRING A N ())) $LINELIST) + (SUBSTRING A N ())) |$LineList|) (SETQ $INDEX (1- $INDEX)) (SETQ A (SUBSEQ A 0 N)))) (GO NOCOMS)) @@ -177,29 +177,6 @@ (dolist (X L) (format t "~5d. ~a~%" (car x) (cdr x))) (format t "~%")))) -(DEFUN |preparseReadLine1| (X) - (PROG (LINE IND) - (SETQ LINE (if $LINELIST - (pop $LINELIST) - (|expandLeadingTabs| (|readLine| in-stream)))) - (setq |$preparseLastLine| LINE) - (and (stringp line) (incf $INDEX)) - (COND - ( (NOT (STRINGP LINE)) - (RETURN (LIST $INDEX)) ) ) - (SETQ LINE (|trimTrailingBlank| LINE)) - (PUSH (COPY-SEQ LINE) |$EchoLineStack|) - ;; next line must evaluate $INDEX before recursive call - (RETURN - (CONS - $INDEX - (COND - ( (AND (> (SETQ IND (|maxIndex| LINE)) -1) (char= (ELT LINE IND) #\_)) - (setq |$preparseLastLine| - (STRCONC (SUBSTRING LINE 0 IND) (CDR (|preparseReadLine1| X))) )) - ( 'T - LINE ) ))) ) ) - (defun PARSEPILES (LOCS LINES) "Add parens and semis to lines to aid parsing." (mapl #'add-parens-and-semis-to-line diff --git a/src/interp/spad-parser.boot b/src/interp/spad-parser.boot index e9e6b6b5..3076f91c 100644 --- a/src/interp/spad-parser.boot +++ b/src/interp/spad-parser.boot @@ -139,6 +139,22 @@ preparseReadLine x == z z +preparseReadLine1 x == + if $LineList then + [line,:$LineList] := $LineList + else + line := expandLeadingTabs readLine IN_-STREAM + $preparseLastLine := line + not string? line => [$INDEX] + $INDEX := $INDEX + 1 + line := trimTrailingBlank line + $EchoLineStack := [copyString line,:$EchoLineStack] + n := $INDEX + if #line > 0 and line.maxIndex(line) = char "__" then + line := strconc(subString(line,0,maxIndex line),rest preparseReadLine1 x) + $preparseLastLine := line + [n,:line] + preparseEcho lines == if $Echo then for x in reverse lines repeat |