MFB 5.3: Rewrite scanner to be based on re2c instead of flex

There are still changes in regards to parsing of Unicode encoded scripts to come.

Author: Scott MacVicar

Zend/FlexLexer.h

@@ -31,7 +31,7 @@ zend_ini_scanner.lo: zend_ini_parser.h
 # Language parser/scanner rules
 
 zend_language_scanner.c: $(srcdir)/zend_language_scanner.l
-	$(LEX) -Pzend -S$(srcdir)/flex.skl -o$@ -i $(srcdir)/zend_language_scanner.l
+	$(RE2C) $(RE2C_FLAGS) --case-inverted -cbdFt $(srcdir)/zend_language_scanner_defs.h -o$@ $(srcdir)/zend_language_scanner.l
 
 zend_language_parser.h: zend_language_parser.c
 zend_language_parser.c: $(srcdir)/zend_language_parser.y
@@ -43,7 +43,7 @@ zend_ini_parser.c: $(srcdir)/zend_ini_parser.y
 	$(YACC) -p ini_ -v -d $(srcdir)/zend_ini_parser.y -o zend_ini_parser.c
 
 zend_ini_scanner.c: $(srcdir)/zend_ini_scanner.l
-	$(LEX) -Pini_ -S$(srcdir)/flex.skl -o$@ -i $(srcdir)/zend_ini_scanner.l
+	$(RE2C) $(RE2C_FLAGS) --case-inverted -cbdFt $(srcdir)/zend_ini_scanner_defs.h -o$@ $(srcdir)/zend_ini_scanner.l
 
 zend_ini_parser.h: zend_ini_parser.c
 

Zend/Makefile.am

@@ -31,7 +31,6 @@ AC_DEFUN([LIBZEND_BASIC_CHECKS],[
 AC_REQUIRE([AC_PROG_YACC])
 AC_REQUIRE([AC_PROG_CC])
 AC_REQUIRE([AC_PROG_CC_C_O])
-AC_REQUIRE([AC_PROG_LEX])
 AC_REQUIRE([AC_HEADER_STDC])
 
 LIBZEND_BISON_CHECK

Zend/Zend.m4

@@ -7,7 +7,6 @@ AM_CONFIG_HEADER(zend_config.h)
 AM_SANITY_CHECK
 AM_MAINTAINER_MODE
 AC_PROG_CC
-AM_PROG_LEX
 AM_PROG_CC_STDC
 ZEND_VERSION=$VERSION
 AC_ZEND_C_BIGENDIAN