From 66fb559f7b79a23d2821d9c0723dbf4b87abb3fb Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Tue, 20 Oct 2009 00:39:09 +0000
Subject: [PATCH] Finished implementing multi-line comments.

---
 Cycript.l | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/Cycript.l b/Cycript.l
index f3c2062..115e1de 100644
--- a/Cycript.l
+++ b/Cycript.l
@@ -96,8 +96,26 @@ RegularExpressionStart_ {RegularExpressionBody}{RegularExpressionEnd_}
 <res>{RegularExpressionStart_} E("/")
 <rer>{RegularExpressionRest_} E("/=")
 
-\/\/[^\n]* ;
-\/\*(\n|[^\*]|\*[^/])\*\/ if (memchr(yytext, '\n', yyleng) != NULL) N // XXX: supposedly I will be screwed on very very long multi-line comments and need to replace this with a manual lexer. http://websrv.cs.fsu.edu/~engelen/courses/COP5621/Pr2.pdf ; XXX: this rule doesn't work anyway, fucking A :(
+\/\/[^\n]* L
+
+\/\*(\n|[^\*]|\*[^/])*\*\/ {
+    // XXX: supposedly I will be screwed on very very long multi-line comments and need to replace this with a manual lexer. http://websrv.cs.fsu.edu/~engelen/courses/COP5621/Pr2.pdf
+
+    if (const char *nl = reinterpret_cast<const char *>(memchr(yytext, '\n', yyleng))) {
+        unsigned lines(0);
+        size_t left;
+
+        do {
+            ++lines;
+            left = yyleng - (nl - yytext) - 1;
+            nl = reinterpret_cast<const char *>(memchr(nl + 1, '\n', left));
+        } while (nl != NULL);
+
+        yylloc->end.lines(lines);
+        yylloc->end.columns(left);
+        yylloc->step();
+    } else L
+}
 
 "&"    L C return tk::Ampersand;
 "&&"   L C return tk::AmpersandAmpersand;
-- 
2.49.0