Skip to content

In the macro definition (#define/#macro), "##_" is used to indicate the dynamic addition of a line continuation character ("_"), Causes the compiler to delay parsing the line continuation.This allows multiple lines of code in the input file to be combined into a single statement. #309

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
May 16, 2021
+17 −1
Merged

In the macro definition (#define/#macro), "##_" is used to indicate the dynamic addition of a line continuation character ("_"), Causes the compiler to delay parsing the line continuation.This allows multiple lines of code in the input file to be combined into a single statement. #309

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion src/compiler/pp-define.bas
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -957,7 +957,7 @@ private function hReadMacroText _
'' '##'?
case CHAR_SHARP
lexSkipToken( LEX_FLAGS )
lexSkipToken( LEX_FLAGS )
lexSkipToken( LEX_FLAGS or LEXCHECK_NOLINECONT)
continue do

'' '#' macro?
Expand Down
16 changes: 16 additions & 0 deletions src/compiler/pp.bas
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -546,6 +546,14 @@ function ppReadLiteral _
case CHAR_SHARP
select case lexGetLookAhead( 1, (LEX_FLAGS or LEXCHECK_KWDNAMESPC) and _
(not LEXCHECK_NOWHITESPC) )
'' '##'?
case CHAR_SHARP
lexSkipToken( LEX_FLAGS )
lexSkipToken( LEX_FLAGS or LEXCHECK_NOLINECONT)
if *lexGetText( ) <> "_" then '' Is only '##_'?
DZstrConcatAssign( text, "##" )
end if

'' '#' macro?
case FB_TK_PP_MACRO
if( ismultiline ) then
Expand Down Expand Up @@ -689,6 +697,14 @@ function ppReadLiteralW _
case CHAR_SHARP
select case lexGetLookAhead( 1, (LEX_FLAGS or LEXCHECK_KWDNAMESPC) and _
(not LEXCHECK_NOWHITESPC) )
'' '##'?
case CHAR_SHARP
lexSkipToken( LEX_FLAGS )
lexSkipToken( LEX_FLAGS or LEXCHECK_NOLINECONT)
if *lexGetText( ) <> "_" then '' Is only '##_'?
DWstrConcatAssignA( text, "##" )
end if

'' '#' macro?
case FB_TK_PP_MACRO
if( ismultiline ) then
Expand Down