revert back to make invoking flex, fix a few bugs

.gitignore

@@ -1,9 +1,6 @@
 *.o
 *~
 
-# Autogenerated
-*.gen.*
-
 # Test binaries
 jv_test
 jv_parse

Makefile.am

@@ -3,26 +3,30 @@
 # setup is only used by distribution developers, not package developers.
 # Still, as a matter of allowing patching, its not a bad idea to distribute 
 # the developer setup script in the tarball.
-EXTRA_DIST = setup.sh config.h.in ChangeLog
+EXTRA_DIST = setup.sh config.h.in ChangeLog VERSION lexer.l lexer.h gen_utf8_tables.py
 
 # README.md is expected in Github projects, good stuff in it, so we'll 
 # distribute it and install it with the package in the doc directory.
 docdir = ${datadir}/doc/${PACKAGE}
 dist_doc_DATA = README.md INSTALL COPYING AUTHORS README NEWS
 
-JQ_SRC = opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c
+JQ_INCS = jq_parser.h builtin.h bytecode.h compile.h execute.h forkable_stack.h frame_layout.h jv.h jv_dtoa.h jv_parse.h jv_unicode.h locfile.h opcode.h opcode_list.h parser.y jv_utf8_tables.gen.h
-# If we distribute the generated files in the source release, packagers won't have to have
+
-# python, bison, and flex
+JQ_SRC = opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c lexer.c $(JQ_INCS)
-DIST_JQ_SRC = parser.gen.c lexer.gen.c jv_utf8_tables.gen.h parser.gen.h lexer.gen.h
 
-bin_PROGRAMS = jq jq_test
 if DEVCFLAGS_ENABLED
-DEVCFLAGS = -Wextra -Wall -Wno-missing-field-initializers -Wno-unused -parameter -std=gnu99 -ggdb -Wno-unused-function
+DEVCFLAGS = -Wextra -Wall -Wno-missing-field-initializers -Wno-unused-parameter -std=gnu99 -ggdb -Wno-unused-function
 AM_CPPFLAGS = $(DEVCFLAGS)
 endif
 
+# Tell YACC (bison) autoconf macros that you want a header file created.
+# If the --warnings=all fails, you probably have an old version of bison
+# OSX ships an old bison, so update with homebrew or macports
+AM_YFLAGS = --warnings=all -d
+
+bin_PROGRAMS = jq jq_test
+BUILT_SOURCES = jv_utf8_tables.gen.h lexer.h lexer.c
 jq_SOURCES = $(JQ_SRC) main.c
-dist_jq_SOURCES = $(DIST_JQ_SRC)
 jq_CPPFLAGS = -O $(DEVCFLAGS) -DJQ_DEBUG=0
 
 
@@ -33,18 +37,22 @@ jq_test_CPPFLAGS = $(DEVCFLAGS) -DJQ_DEBUG=1
 LOG_COMPILER = valgrind
 AM_LOG_FLAGS = --error-exitcode=1 -q --leak-check=full
 
-lexer.gen.c: lexer.l
+# nasty circular dependency on header files between the generated C files
-	flex -o lexer.gen.c --header-file=lexer.gen.h lexer.l
+parser.o: lexer.c
-lexer.gen.h: lexer.gen.c
 
-# if this fails on OSX, install bison from macports or homebrew.  OSX comes
+lexer.o: parcer.c
-# with bison 2.3 which is too old
+
-parser.gen.c: parser.y lexer.gen.h
+lexer.c: parser.h
-	bison --warnings=all -d parser.y -v --report-file=parser.gen.info -o $@
+
-parser.gen.h: parser.gen.c
+# While there is some autoconf macro support for lex/flex, it doesn't support
+# header file creation so we'll use good old make
+lexer.c: lexer.l
+	flex -o lexer.c --header-file=lexer.h lexer.l
+lexer.h: lexer.c
 
 jv_utf8_tables.gen.h: gen_utf8_tables.py
 	python $^ > $@
+
 jv_unicode.c: jv_utf8_tables.gen.h
 
 ChangeLog:
@@ -52,8 +60,6 @@ ChangeLog:
 
 main.c: config.h
 
-releasedep: lexer.gen.c parser.gen.c jv_utf8_tables.gen.h
-
 releasetag:
 	git tag -s "jq-$$(cat VERSION)" -m "jq release $$(cat VERSION)"
 
@@ -67,3 +73,6 @@ rpmbuild: jq
 	cp jq jq-$$(cat VERSION)/bin
 	tar -zcf rpm/SOURCES/jq-$$(cat VERSION).tgz jq-$$(cat VERSION)/bin/jq
 	rpmbuild --target $$(uname -m) --buildroot ${PWD}/rpm/BUILDROOT/jq-$$(cat VERSION)-${RELEASE}.noarch --define "_topdir ${PWD}/rpm" --define "version $$(cat VERSION)" --define "release ${RELEASE}" -bb --clean rpm/SPECS/jq.spec
+
+dist-clean-local:
+	rm -f $(BUILT_SOURCES)

builtin.c

@@ -1,7 +1,7 @@
 #include <string.h>
 #include "builtin.h"
 #include "compile.h"
-#include "parser.h"
+#include "jq_parser.h"
 #include "locfile.h"
 
 enum {

configure.ac

@@ -8,9 +8,13 @@ AM_INIT_AUTOMAKE([parallel-tests])
 AC_PROG_CC
 AC_PROG_CC_STDC
 AC_PROG_CPP_WERROR
+AC_PROG_YACC
 
 AM_PROG_CC_C_O
 
+dnl couldn't use AM_PROG_LEX as it doesn't support header files like the
+dnl AC_PROG_YACC macros...
+
 dnl   CFLAGS is concidered a packagers variable, not a developer variable
 dnl   in Auto-tools.  For developer ease of use, CFLAGS are set how the
 dnl   developers like them by default but the packager can disable if so
@@ -28,6 +32,10 @@ if test "$enable_devcflags" = "yes"; then
   AM_CONDITIONAL(DEVCFLAGS_ENABLED, true)
 fi
 
+dnl
+dnl these program checks should probably be deleted
+dnl
+
 dnl Check for sed
 AC_CHECK_PROGS(regex_cmd, sed)
 if test x$regex_cmd = "x" ; then
@@ -46,8 +54,6 @@ if test x$bison_cmd = "x" ; then
     AC_MSG_NOTICE([bison is required to patch jq.])
 fi
 
- AC_CONFIG_HEADERS(config.h)
-
 dnl Check for python
 AC_CHECK_PROGS(python_cmd, python)
 if test x$python_cmd = "x" ; then
@@ -61,6 +67,7 @@ if test x$valgrind_cmd = "x" ; then
 fi
 
 dnl AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_HEADERS(config.h)
 AM_INIT_AUTOMAKE([-Wall dist-bzip2 dist-zip])
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT

execute.c

@@ -14,7 +14,7 @@
 
 #include "locfile.h"
 #include "jv.h"
-#include "parser.h"
+#include "jq_parser.h"
 #include "builtin.h"
 
 typedef struct {

jq_parser.h

@@ -1,5 +1,5 @@
-#ifndef PARSER_H
+#ifndef JQ_PARSER_H
-#define PARSER_H
+#define JQ_PARSER_H
 
 int jq_parse(struct locfile* source, block* answer);
 int jq_parse_library(struct locfile* locations, block* answer);

lexer.l

@@ -3,7 +3,7 @@
 
 struct lexer_param;
 
-#include "parser.gen.h"  /* Generated by bison. */
+#include "parser.h"  /* Generated by bison. */
 
 #define YY_USER_ACTION                           \
   do {                                           \

parser.y

@@ -88,7 +88,7 @@ struct lexer_param;
 
 %type <blk> Exp Term MkDict MkDictPair ExpD ElseBody QQString FuncDef FuncDefs String
 %{
-#include "lexer.gen.h"
+#include "lexer.h"
 struct lexer_param {
   yyscan_t lexer;
 };

setup.sh

@@ -2,9 +2,19 @@
 
 # RUN ME after pulling the code from git!
 if [ "clean" == "$1" ]; then
-  make distclean
+  make distclean || echo "continuing..."
   rm -rf tmp autom4te.cache config
-  rm -f INSTALL Makefile.in aclocal.m4 configure config.h.in *.gen.c *.gen.h ChangeLog
+  rm -f INSTALL Makefile.in aclocal.m4 configure config.h.in ChangeLog
+  rm -f jv_utf8_tables.gen.h lexer.c lexer.h parser.c parser.h
+elif [ "superclean" == "$1" ]; then
+  ver=$(tr -d '\n' <VERSION)
+  if [ "x${ver}" != "x" ]; then
+    if [ -d jq-${ver} ]; then
+      chmod -R u+w jq-${ver}
+      rm -rf jq-${ver}
+    fi
+    rm -f jq-${ver}.*
+  fi
 else
   autoreconf --install
   ./configure --prefix=/opt/junk