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macroprocessor: support multi-line comments. #4

issue#70
Houtan Bastani 2018-07-09 16:55:08 +02:00
parent 066942ef22
commit 86a08f54ae
1 changed files with 6 additions and 0 deletions
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6
src/macro/MacroFlex.ll
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@ -41,6 +41,8 @@ using token = Macro::parser::token;
Unfortunately yyterminate by default returns 0, which is
not of token_type. */
#define yyterminate() return Macro::parser::token_type (0);
int macro_comment_caller;
%}
%option c++
@ -49,6 +51,7 @@ using token = Macro::parser::token;
%option case-insensitive noyywrap nounput batch debug never-interactive
%x COMMENT
%x STMT
%x EXPR
%x FOR_BODY
@ -74,6 +77,9 @@ CONT \\\\
// Ignore inline comments
<INITIAL,STMT,EXPR,FOR_BODY,THEN_BODY,ELSE_BODY>%.* { yylloc->step(); ECHO; }
<INITIAL,STMT,EXPR,FOR_BODY,THEN_BODY,ELSE_BODY>\/{2}.* { yylloc->step(); ECHO; }
<INITIAL,STMT,EXPR,FOR_BODY,THEN_BODY,ELSE_BODY>"/*" { ECHO; macro_comment_caller = YY_START; BEGIN COMMENT; }
<COMMENT>"*/" { BEGIN macro_comment_caller; ECHO; }
<COMMENT>. { yylloc->step(); ECHO; }
<INITIAL>^{SPC}*@#{SPC}*includepath{SPC}+\"([^\"\r\n:;|<>]*){1}(:[^\"\r\n:;|<>]*)*\"{SPC}*{EOL} {
yylloc->lines(1);