Allow line continuations within // comments.

This is what the standards specify.

Scanner.asm

@@ -743,11 +743,16 @@ lc2      anop
          lda   chPtr+2
          cmp   eofPtr+2
          jeq   lc5
-!          else if (cch = '/') and (chPtr^ = return) then begin
+!          else if (cch = '/') then begin
 lc2a     lda   cch
          cmp   #'/'
          bne   lc2b
-!             if charKinds[ord(ch)] = ch_eol then
+!             if (charKinds[ord(chPtr^)] = ch_eol)
+!                and (ptr(ord4(chPtr)-1)^ <> '\')
+!                and ((ptr(ord4(chPtr)-1)^ <> '/') 
+!                  or (ptr(ord4(chPtr)-2)^ <> '?')
+!                  or (ptr(ord4(chPtr)-3)^ <> '?'))
+!                then
 !                done := true
 !             else
 !                chPtr := pointer(ord4(chPtr)+1);
@@ -758,8 +763,19 @@ lc2a     lda   cch
          tax
          lda   charKinds,X
          cmp   #ch_eol
-         jeq   lc5
-         inc4  chPtr
+         bne   lc2aa
+         dec4  p1
+         lda   [p1]
+         and   #$00FF
+         cmp   #'\'
+         beq   lc2aa
+         cmp   #'/'
+         jne   lc5
+         sub4  p1,#2
+         lda   [p1]
+         cmp   #'??'
+         jne   lc5
+lc2aa    inc4  chPtr
          bra   lc2
 !             end {else if}
 !          else begin

Scanner.macros

@@ -636,3 +636,48 @@
 .f
  mnote "Missing closing '}'",16
  mend
+ macro
+&l sub4 &m1,&m2,&m3
+ lclb &yistwo
+ lclc &c
+&l ~setm
+ aif c:&m3,.a
+&c amid "&m2",1,1
+ aif "&c"<>"#",.a
+&c amid "&m1",1,1
+ aif "&c"="{",.a
+ aif "&c"="[",.a
+&c amid "&m2",2,l:&m2-1
+ aif &c>=65536,.a
+ sec
+ ~lda &m1
+ ~op sbc,&m2
+ ~sta &m1
+ bcs ~&SYSCNT
+ ~op.h dec,&m1
+~&SYSCNT anop
+ ago .c
+.a
+ aif c:&m3,.b
+ lclc &m3
+&m3 setc &m1
+.b
+ sec
+ ~lda &m1
+ ~op sbc,&m2
+ ~sta &m3
+ ~lda.h &m1
+ ~op.h sbc,&m2
+ ~sta.h &m3
+.c
+ ~restm
+ mend
+ macro
+&l dec4 &a
+&l ~setm
+ lda &a
+ bne ~&SYSCNT
+ dec 2+&a
+~&SYSCNT dec &a
+ ~restm
+ mend

cc.notes

@@ -1364,7 +1364,7 @@ WARNING:  If you add a defaults.h file, be sure and delete all .sym files.  .sym
 // Comments
 -----------
 
-ORCA/C supports // comments.  These comments begin with the characters //, and continue to the end of the physical line.
+ORCA/C supports // comments.  These comments begin with the characters //, and continue to the end of the line.
 
 // comments are a flagrant violation of the ANSI C89 standard, although they are supported by the C99 and later standards.  This is legal ANSI C89, and it should print 4:
 
@@ -2017,6 +2017,8 @@ int foo(int[42]);
 
 224. Comparisons against four-byte values in global structures, unions, or arrays might not work correctly when using the large memory model.
 
+225. According to the C99 and later standards, a line continuation with \ should let a // comment continue to the next line.  ORCA/C now behaves accordingly.
+
 -- Bugs from C 2.1.0 that have been fixed -----------------------------------
 
 1.  In some situations, fread() reread the first 1K or so of the file.