Search in BOARDS_TXT for chip or cpu submenu

Using new Arduino IDE and ATTinyCore board module he need to search var
various vars not in cpu submenu but in chip. Changed the makefile in
order to search chip or cpu using regular expression.

Author: straccio

Arduino.mk

@@ -568,7 +568,7 @@ endif
 
 ifndef PARSE_BOARD
     # result = $(call READ_BOARD_TXT, 'boardname', 'parameter')
-    PARSE_BOARD = $(shell grep -v '^\#' $(BOARDS_TXT) | grep "^[ \t]*$(1).$(2)=" | cut -d = -f 2)
+    PARSE_BOARD = $(shell grep -Ev '^\#' $(BOARDS_TXT) | grep -E "^[ \t]*$(1).$(2)=" | cut -d = -f 2)
 endif
 
 # If NO_CORE is set, then we don't have to parse boards.txt file
@@ -587,7 +587,7 @@ ifeq ($(strip $(NO_CORE)),)
 
     # Which variant ? This affects the include path
     ifndef VARIANT
-        VARIANT := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).build.variant)
+        VARIANT := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).build.variant)
         ifndef VARIANT
             VARIANT := $(call PARSE_BOARD,$(BOARD_TAG),build.variant)
         endif
@@ -597,7 +597,7 @@ ifeq ($(strip $(NO_CORE)),)
     endif
 
     # see if we are a caterina device like leonardo or micro
-    CATERINA := $(findstring caterina,$(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).bootloader.file))
+    CATERINA := $(findstring caterina,$(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.file))
     ifndef CATERINA
         # 1.5+ method if not a submenu
         CATERINA := $(findstring caterina,$(call PARSE_BOARD,$(BOARD_TAG),bootloader.file))
@@ -609,14 +609,14 @@ ifeq ($(strip $(NO_CORE)),)
 
     # processor stuff
     ifndef MCU
-        MCU := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).build.mcu)
+        MCU := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).build.mcu)
         ifndef MCU
             MCU := $(call PARSE_BOARD,$(BOARD_TAG),build.mcu)
         endif
     endif
 
     ifndef F_CPU
-        F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).build.f_cpu)
+        F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).build.f_cpu)
         ifndef F_CPU
             F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),build.f_cpu)
         endif
@@ -635,14 +635,14 @@ ifeq ($(strip $(NO_CORE)),)
 
     # normal programming info
     ifndef AVRDUDE_ARD_PROGRAMMER
-        AVRDUDE_ARD_PROGRAMMER := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).upload.protocol)
+        AVRDUDE_ARD_PROGRAMMER := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).upload.protocol)
         ifndef AVRDUDE_ARD_PROGRAMMER
             AVRDUDE_ARD_PROGRAMMER := $(call PARSE_BOARD,$(BOARD_TAG),upload.protocol)
         endif
     endif
 
     ifndef AVRDUDE_ARD_BAUDRATE
-        AVRDUDE_ARD_BAUDRATE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).upload.speed)
+        AVRDUDE_ARD_BAUDRATE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).upload.speed)
         ifndef AVRDUDE_ARD_BAUDRATE
             AVRDUDE_ARD_BAUDRATE := $(call PARSE_BOARD,$(BOARD_TAG),upload.speed)
         endif
@@ -654,21 +654,21 @@ ifeq ($(strip $(NO_CORE)),)
     endif
 
     ifndef ISP_HIGH_FUSE
-        ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).bootloader.high_fuses)
+        ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.high_fuses)
         ifndef ISP_HIGH_FUSE
             ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.high_fuses)
         endif
     endif
 
     ifndef ISP_LOW_FUSE
-        ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).bootloader.low_fuses)
+        ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.low_fuses)
         ifndef ISP_LOW_FUSE
             ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.low_fuses)
         endif
     endif
 
     ifndef ISP_EXT_FUSE
-        ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).bootloader.extended_fuses)
+        ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.extended_fuses)
         ifndef ISP_EXT_FUSE
             ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.extended_fuses)
         endif
@@ -679,7 +679,7 @@ ifeq ($(strip $(NO_CORE)),)
     endif
 
     ifndef BOOTLOADER_FILE
-        BOOTLOADER_FILE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).bootloader.file)
+        BOOTLOADER_FILE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.file)
         ifndef BOOTLOADER_FILE
             BOOTLOADER_FILE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.file)
         endif
@@ -690,7 +690,7 @@ ifeq ($(strip $(NO_CORE)),)
     endif
 
     ifndef HEX_MAXIMUM_SIZE
-        HEX_MAXIMUM_SIZE := $(call PARSE_BOARD,$(BOARD_TAG),menu.cpu.$(BOARD_SUB).upload.maximum_size)
+        HEX_MAXIMUM_SIZE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).upload.maximum_size)
         ifndef HEX_MAXIMUM_SIZE
             HEX_MAXIMUM_SIZE := $(call PARSE_BOARD,$(BOARD_TAG),upload.maximum_size)
         endif
@@ -1496,7 +1496,7 @@ show_boards:
 		@$(CAT) $(BOARDS_TXT) | grep -E '^[a-zA-Z0-9_\-]+.name' | sort -uf | sed 's/.name=/:/' | column -s: -t
 
 show_submenu:
-	@$(CAT) $(BOARDS_TXT) | grep -E '[a-zA-Z0-9_\-]+.menu.cpu.[a-zA-Z0-9_\-]+=' | sort -uf | sed 's/.menu.cpu./:/' | sed 's/=/:/' | column -s: -t
+	@$(CAT) $(BOARDS_TXT) | grep -E '[a-zA-Z0-9_\-]+.menu.(cpu|chip).[a-zA-Z0-9_\-]+=' | sort -uf | sed 's/.menu.(cpu|chip)./:/' | sed 's/=/:/' | column -s: -t
 
 monitor:
 ifeq ($(MONITOR_CMD), 'putty')