Optimize for lexer performance: stop backtracking.

[cycript.git] / Makefile.in

diff --git a/Makefile.in b/Makefile.in
index baed83910226010598df8b02811fcb4ff770c0c8..1c86879250cff1fea658698fe921156401b36c16 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -1322,7 +1322,8 @@ Cycript.yy: Cycript.yy.in
 Cycript.l: Cycript.l.in
        $(srcdir)/Filter.sh <$< >$@ $(filters)
 lex.cy.cpp: Cycript.l
-       $(FLEX) -t $< | $(SED) -e 's/int yyl;/yy_size_t yyl;/;s/int yyleng_r;/yy_size_t yyleng_r;/' >$@
+       $(FLEX) -b -t $< | $(SED) -e 's/int yyl;/yy_size_t yyl;/;s/int yyleng_r;/yy_size_t yyleng_r;/;s/yyg =/yyg __attribute__((__unused__)) =/' >$@
+       grep -F 'No backing up.' lex.backup >/dev/null
 
 Console.$(OBJEXT) Cycript.tab.lo Driver.lo Handler.lo Highlight.lo Library.lo lex.cy.lo: Cycript.tab.hh
 Cycript.tab.cc Cycript.tab.hh stack.hh Cycript.output: Cycript.yy