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-rw-r--r--Arduino.mk453
-rwxr-xr-xard-parse-boards261
-rw-r--r--licence.txt502
3 files changed, 1216 insertions, 0 deletions
diff --git a/Arduino.mk b/Arduino.mk
new file mode 100644
index 0000000..4cf3e1e
--- /dev/null
+++ b/Arduino.mk
@@ -0,0 +1,453 @@
+########################################################################
+#
+# Arduino command line tools Makefile
+# System part (i.e. project independent)
+#
+# Copyright (C) 2010 Martin Oldfield <m@mjo.tc>, based on work that is
+# Copyright Nicholas Zambetti, David A. Mellis & Hernando Barragan
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 2.1 of the
+# License, or (at your option) any later version.
+#
+# Adapted from Arduino 0011 Makefile by M J Oldfield
+#
+# Original Arduino adaptation by mellis, eighthave, oli.keller
+#
+# Version 0.1 17.ii.2009 M J Oldfield
+#
+# 0.2 22.ii.2009 M J Oldfield
+# - fixes so that the Makefile actually works!
+# - support for uploading via ISP
+# - orthogonal choices of using the Arduino for
+# tools, libraries and uploading
+#
+# 0.3 21.v.2010 M J Oldfield
+# - added proper license statement
+# - added code from Philip Hands to reset
+# Arduino prior to upload
+#
+# 0.4 25.v.2010 M J Oldfield
+# - tweaked reset target on Philip Hands' advice
+#
+# 0.5 23.iii.2011 Stefan Tomanek
+# - added ad-hoc library building
+# 17.v.2011 M J Oldfield
+# - grabbed said version from Ubuntu
+#
+# 0.6 22.vi.2011 M J Oldfield
+# - added ard-parse-boards supports
+# - added -lc to linker opts,
+# on Fabien Le Lez's advice
+#
+########################################################################
+#
+# STANDARD ARDUINO WORKFLOW
+#
+# Given a normal sketch directory, all you need to do is to create
+# a small Makefile which defines a few things, and then includes this one.
+#
+# For example:
+#
+# ARDUINO_DIR = /Applications/arduino-0013
+#
+# TARGET = CLItest
+# ARDUINO_LIBS = LiquidCrystal
+#
+# BOARD_TAG = uno
+# ARDUINO_PORT = /dev/cu.usb*
+#
+# include /usr/local/share/Arduino.mk
+#
+# Hopefully these will be self-explanatory but in case they're not:
+#
+# ARDUINO_DIR - Where the Arduino software has been unpacked
+# TARGET - The basename used for the final files. Canonically
+# this would match the .pde file, but it's not needed
+# here: you could always set it to xx if you wanted!
+# ARDUINO_LIBS - A list of any libraries used by the sketch (we assume
+# these are in $(ARDUINO_DIR)/hardware/libraries
+# ARDUINO_PORT - The port where the Arduino can be found (only needed
+# when uploading
+# BOARD_TAG - The ard-parse-boards tag for the board e.g. uno or mega
+# 'make show_boards' shows a list
+#
+# You might also want to specify these, but normally they'll be read from the
+# boards.txt file i.e. implied by BOARD_TAG
+#
+# MCU,F_CPU - The target processor description
+#
+# Once this file has been created the typical workflow is just
+#
+# $ make upload
+#
+# All of the object files are created in the build-cli subdirectory
+# All sources should be in the current directory and can include:
+# - at most one .pde file which will be treated as C++ after the standard
+# Arduino header and footer have been affixed.
+# - any number of .c, .cpp, .s and .h files
+#
+# Included libraries are built in the build-cli/libs subdirectory.
+#
+# Besides make upload you can also
+# make - no upload
+# make clean - remove all our dependencies
+# make depends - update dependencies
+# make reset - reset the Arduino by tickling DTR on the serial port
+# make raw_upload - upload without first resetting
+# make show_boards - list all the boards defined in boards.txt
+#
+########################################################################
+#
+# ARDUINO WITH OTHER TOOLS
+#
+# If the tools aren't in the Arduino distribution, then you need to
+# specify their location:
+#
+# AVR_TOOLS_PATH = /usr/bin
+# AVRDUDE_CONF = /etc/avrdude/avrdude.conf
+#
+########################################################################
+#
+# ARDUINO WITH ISP
+#
+# You need to specify some details of your ISP programmer and might
+# also need to specify the fuse values:
+#
+# ISP_PROG = -c stk500v2
+# ISP_PORT = /dev/ttyACM0
+#
+# You might also need to set the fuse bits, but typically they'll be
+# read from boards.txt, based on the BOARD_TAG variable:
+#
+# ISP_LOCK_FUSE_PRE = 0x3f
+# ISP_LOCK_FUSE_POST = 0xcf
+# ISP_HIGH_FUSE = 0xdf
+# ISP_LOW_FUSE = 0xff
+# ISP_EXT_FUSE = 0x01
+#
+# I think the fuses here are fine for uploading to the ATmega168
+# without bootloader.
+#
+# To actually do this upload use the ispload target:
+#
+# make ispload
+#
+#
+########################################################################
+# Some paths
+#
+
+ifneq (ARDUINO_DIR,)
+
+ifndef AVR_TOOLS_PATH
+AVR_TOOLS_PATH = $(ARDUINO_DIR)/hardware/tools/avr/bin
+endif
+
+ifndef ARDUINO_ETC_PATH
+ARDUINO_ETC_PATH = $(ARDUINO_DIR)/hardware/tools/avr/etc
+endif
+
+ifndef AVRDUDE_CONF
+AVRDUDE_CONF = $(ARDUINO_ETC_PATH)/avrdude.conf
+endif
+
+ARDUINO_LIB_PATH = $(ARDUINO_DIR)/libraries
+ARDUINO_CORE_PATH = $(ARDUINO_DIR)/hardware/arduino/cores/arduino
+
+endif
+
+########################################################################
+# boards.txt parsing
+#
+ifndef BOARD_TAG
+BOARD_TAG = uno
+endif
+
+ifndef BOARDS_TXT
+BOARDS_TXT = $(ARDUINO_DIR)/hardware/arduino/boards.txt
+endif
+
+ifndef PARSE_BOARD
+PARSE_BOARD = ard-parse-boards --boards_txt=$(BOARDS_TXT)
+endif
+
+# processor stuff
+ifndef MCU
+MCU = $(shell $(PARSE_BOARD) $(BOARD_TAG) build.mcu)
+endif
+
+ifndef F_CPU
+F_CPU = $(shell $(PARSE_BOARD) $(BOARD_TAG) build.f_cpu)
+endif
+
+# normal programming info
+ifndef AVRDUDE_ARD_PROGRAMMER
+AVRDUDE_ARD_PROGRAMMER = $(shell $(PARSE_BOARD) $(BOARD_TAG) upload.protocol)
+endif
+
+ifndef AVRDUDE_ARD_BAUDRATE
+AVRDUDE_ARD_BAUDRATE = $(shell $(PARSE_BOARD) $(BOARD_TAG) upload.speed)
+endif
+
+# fuses if you're using e.g. ISP
+ifndef ISP_LOCK_FUSE_PRE
+ISP_LOCK_FUSE_PRE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.unlock_bits)
+endif
+
+ifndef ISP_LOCK_FUSE_POST
+ISP_LOCK_FUSE_POST = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.lock_bits)
+endif
+
+ifndef ISP_HIGH_FUSE
+ISP_HIGH_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.high_fuses)
+endif
+
+ifndef ISP_LOW_FUSE
+ISP_LOW_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.low_fuses)
+endif
+
+ifndef ISP_EXT_FUSE
+ISP_EXT_FUSE = $(shell $(PARSE_BOARD) $(BOARD_TAG) bootloader.extended_fuses)
+endif
+
+
+
+
+# Everything gets built in here
+OBJDIR = build-cli
+
+########################################################################
+# Local sources
+#
+LOCAL_C_SRCS = $(wildcard *.c)
+LOCAL_CPP_SRCS = $(wildcard *.cpp)
+LOCAL_CC_SRCS = $(wildcard *.cc)
+LOCAL_PDE_SRCS = $(wildcard *.pde)
+LOCAL_AS_SRCS = $(wildcard *.S)
+LOCAL_OBJ_FILES = $(LOCAL_C_SRCS:.c=.o) $(LOCAL_CPP_SRCS:.cpp=.o) \
+ $(LOCAL_CC_SRCS:.cc=.o) $(LOCAL_PDE_SRCS:.pde=.o) \
+ $(LOCAL_AS_SRCS:.S=.o)
+LOCAL_OBJS = $(patsubst %,$(OBJDIR)/%,$(LOCAL_OBJ_FILES))
+
+# Dependency files
+DEPS = $(LOCAL_OBJS:.o=.d)
+
+# core sources
+ifeq ($(strip $(NO_CORE)),)
+ifdef ARDUINO_CORE_PATH
+CORE_C_SRCS = $(wildcard $(ARDUINO_CORE_PATH)/*.c)
+CORE_CPP_SRCS = $(wildcard $(ARDUINO_CORE_PATH)/*.cpp)
+CORE_OBJ_FILES = $(CORE_C_SRCS:.c=.o) $(CORE_CPP_SRCS:.cpp=.o)
+CORE_OBJS = $(patsubst $(ARDUINO_CORE_PATH)/%, \
+ $(OBJDIR)/%,$(CORE_OBJ_FILES))
+endif
+endif
+
+# all the objects!
+OBJS = $(LOCAL_OBJS) $(CORE_OBJS) $(LIB_OBJS)
+
+########################################################################
+# Rules for making stuff
+#
+
+# The name of the main targets
+TARGET_HEX = $(OBJDIR)/$(TARGET).hex
+TARGET_ELF = $(OBJDIR)/$(TARGET).elf
+TARGETS = $(OBJDIR)/$(TARGET).*
+
+# A list of dependencies
+DEP_FILE = $(OBJDIR)/depends.mk
+
+# Names of executables
+CC = $(AVR_TOOLS_PATH)/avr-gcc
+CXX = $(AVR_TOOLS_PATH)/avr-g++
+OBJCOPY = $(AVR_TOOLS_PATH)/avr-objcopy
+OBJDUMP = $(AVR_TOOLS_PATH)/avr-objdump
+AR = $(AVR_TOOLS_PATH)/avr-ar
+SIZE = $(AVR_TOOLS_PATH)/avr-size
+NM = $(AVR_TOOLS_PATH)/avr-nm
+REMOVE = rm -f
+MV = mv -f
+CAT = cat
+ECHO = echo
+
+# General arguments
+SYS_LIBS = $(patsubst %,$(ARDUINO_LIB_PATH)/%,$(ARDUINO_LIBS))
+SYS_INCLUDES = $(patsubst %,-I%,$(SYS_LIBS))
+SYS_OBJS = $(wildcard $(patsubst %,%/*.o,$(SYS_LIBS)))
+LIB_SRC = $(wildcard $(patsubst %,%/*.cpp,$(SYS_LIBS)))
+LIB_OBJS = $(patsubst $(ARDUINO_LIB_PATH)/%.cpp,$(OBJDIR)/libs/%.o,$(LIB_SRC))
+
+CPPFLAGS = -mmcu=$(MCU) -DF_CPU=$(F_CPU) \
+ -I. -I$(ARDUINO_CORE_PATH) \
+ $(SYS_INCLUDES) -g -Os -w -Wall \
+ -ffunction-sections -fdata-sections
+CFLAGS = -std=gnu99
+CXXFLAGS = -fno-exceptions
+ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp
+LDFLAGS = -mmcu=$(MCU) -lm -Wl,--gc-sections -Os
+
+# Rules for making a CPP file from the main sketch (.cpe)
+PDEHEADER = \\\#include \"WProgram.h\"
+
+# Expand and pick the first port
+ARD_PORT = $(firstword $(wildcard $(ARDUINO_PORT)))
+
+# Implicit rules for building everything (needed to get everything in
+# the right directory)
+#
+# Rather than mess around with VPATH there are quasi-duplicate rules
+# here for building e.g. a system C++ file and a local C++
+# file. Besides making things simpler now, this would also make it
+# easy to change the build options in future
+
+# library sources
+$(OBJDIR)/libs/%.o: $(ARDUINO_LIB_PATH)/%.cpp
+ mkdir -p $(dir $@)
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
+
+# normal local sources
+# .o rules are for objects, .d for dependency tracking
+# there seems to be an awful lot of duplication here!!!
+$(OBJDIR)/%.o: %.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.cc
+ $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.cpp
+ $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.S
+ $(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: %.s
+ $(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
+
+$(OBJDIR)/%.d: %.c
+ $(CC) -MM $(CPPFLAGS) $(CFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+$(OBJDIR)/%.d: %.cc
+ $(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+$(OBJDIR)/%.d: %.cpp
+ $(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+$(OBJDIR)/%.d: %.S
+ $(CC) -MM $(CPPFLAGS) $(ASFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+$(OBJDIR)/%.d: %.s
+ $(CC) -MM $(CPPFLAGS) $(ASFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+# the pde -> cpp -> o file
+$(OBJDIR)/%.cpp: %.pde
+ $(ECHO) $(PDEHEADER) > $@
+ $(CAT) $< >> $@
+
+$(OBJDIR)/%.o: $(OBJDIR)/%.cpp
+ $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
+
+$(OBJDIR)/%.d: $(OBJDIR)/%.cpp
+ $(CXX) -MM $(CPPFLAGS) $(CXXFLAGS) $< -MF $@ -MT $(@:.d=.o)
+
+# core files
+$(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.c
+ $(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.cpp
+ $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
+
+# various object conversions
+$(OBJDIR)/%.hex: $(OBJDIR)/%.elf
+ $(OBJCOPY) -O ihex -R .eeprom $< $@
+
+$(OBJDIR)/%.eep: $(OBJDIR)/%.elf
+ -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
+ --change-section-lma .eeprom=0 -O ihex $< $@
+
+$(OBJDIR)/%.lss: $(OBJDIR)/%.elf
+ $(OBJDUMP) -h -S $< > $@
+
+$(OBJDIR)/%.sym: $(OBJDIR)/%.elf
+ $(NM) -n $< > $@
+
+########################################################################
+#
+# Avrdude
+#
+ifndef AVRDUDE
+AVRDUDE = $(AVR_TOOLS_PATH)/avrdude
+endif
+
+AVRDUDE_COM_OPTS = -q -V -p $(MCU)
+ifdef AVRDUDE_CONF
+AVRDUDE_COM_OPTS += -C $(AVRDUDE_CONF)
+endif
+
+AVRDUDE_ARD_OPTS = -c $(AVRDUDE_ARD_PROGRAMMER) -b $(AVRDUDE_ARD_BAUDRATE) -P $(ARD_PORT)
+
+ifndef ISP_PROG
+ISP_PROG = -c stk500v2
+endif
+
+AVRDUDE_ISP_OPTS = -P $(ISP_PORT) $(ISP_PROG)
+
+
+########################################################################
+#
+# Explicit targets start here
+#
+
+all: $(OBJDIR) $(TARGET_HEX)
+
+$(OBJDIR):
+ mkdir $(OBJDIR)
+
+$(TARGET_ELF): $(OBJS)
+ $(CC) $(LDFLAGS) -o $@ $(OBJS) $(SYS_OBJS) -lc
+
+$(DEP_FILE): $(OBJDIR) $(DEPS)
+ cat $(DEPS) > $(DEP_FILE)
+
+upload: reset raw_upload
+
+raw_upload: $(TARGET_HEX)
+ $(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ARD_OPTS) \
+ -U flash:w:$(TARGET_HEX):i
+
+# stty on MacOS likes -F, but on Debian it likes -f redirecting
+# stdin/out appears to work but generates a spurious error on MacOS at
+# least. Perhaps it would be better to just do it in perl ?
+reset:
+ for STTYF in 'stty --file' 'stty -f' 'stty <' ; \
+ do $$STTYF /dev/tty >/dev/null 2>/dev/null && break ; \
+ done ;\
+ $$STTYF $(ARD_PORT) hupcl ;\
+ (sleep 0.1 || sleep 1) ;\
+ $$STTYF $(ARD_PORT) -hupcl
+
+ispload: $(TARGET_HEX)
+ $(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) -e \
+ -U lock:w:$(ISP_LOCK_FUSE_PRE):m \
+ -U hfuse:w:$(ISP_HIGH_FUSE):m \
+ -U lfuse:w:$(ISP_LOW_FUSE):m \
+ -U efuse:w:$(ISP_EXT_FUSE):m
+ $(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) -D \
+ -U flash:w:$(TARGET_HEX):i
+ $(AVRDUDE) $(AVRDUDE_COM_OPTS) $(AVRDUDE_ISP_OPTS) \
+ -U lock:w:$(ISP_LOCK_FUSE_POST):m
+
+clean:
+ $(REMOVE) $(OBJS) $(TARGETS) $(DEP_FILE) $(DEPS)
+
+depends: $(DEPS)
+ cat $(DEPS) > $(DEP_FILE)
+
+show_boards:
+ $(PARSE_BOARD) --boards
+
+.PHONY: all clean depends upload raw_upload reset show_boards
+
+include $(DEP_FILE)
diff --git a/ard-parse-boards b/ard-parse-boards
new file mode 100755
index 0000000..e2de71b
--- /dev/null
+++ b/ard-parse-boards
@@ -0,0 +1,261 @@
+#! /usr/bin/perl
+
+use strict;
+use warnings;
+
+use Getopt::Long;
+use Pod::Usage;
+use YAML;
+
+my %Opt =
+ (
+ boards_txt => '/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/boards.txt',
+ );
+
+GetOptions(\%Opt,
+ "boards_txt=s", # filename of the boards.txt file
+ "find!", # search for data
+ "dump!", # dump the whole database
+ "boards!", # dump a list of boards
+ "help!",
+ "info!",
+ );
+
+if ($Opt{help} || $Opt{info})
+ {
+ usage();
+ }
+
+my $db = parse_boards($Opt{boards_txt});
+
+if ($Opt{dump})
+ {
+ dump_data("$Opt{boards_txt} contains:", $db);
+ }
+elsif ($Opt{find})
+ {
+ my @terms = @ARGV or usage();
+ find_data($db, \@terms);
+ }
+elsif ($Opt{boards})
+ {
+ dump_boards($db);
+ }
+else
+ {
+ my $tag = shift @ARGV or usage();
+
+ if (my $key = shift @ARGV)
+ {
+ die "$key isn't defined for the $tag board, "
+ unless $db->{$tag} && exists $db->{$tag}->{$key};
+
+ print $db->{$tag}->{$key}, "\n";
+ }
+ else
+ {
+ die "The $tag board isn't defined, "
+ unless $db->{$tag};
+
+ dump_data("The $tag board:", $db->{$tag});
+ }
+ }
+
+## here endeth the main
+
+sub usage
+ {
+ pod2usage(-verbose => 2);
+ }
+
+# return HoH: {board}->{field} = value
+sub parse_boards
+ {
+ my $filename = shift;
+
+ my %b;
+
+ open(my $fh, '<', $filename)
+ or die "Can't open $filename, ";
+
+ while(<$fh>)
+ {
+ my ($board, $key, $value) = /^\s*(\S+?)\.(\S+?)\s*=\s*(.+?)\s*$/
+ or next;
+
+ $b{$board}->{$key} = $value;
+ }
+
+ return \%b;
+ }
+
+# A rudimentary search engine
+sub find_data
+ {
+ my ($db, $term_list) = @_;
+
+ my @q = map { qr/$_/i } @$term_list;
+ my $q = join(' && ', map { "/$_/i" } @$term_list);
+
+ my %hit;
+ foreach my $b (keys %$db)
+ {
+ foreach my $k (keys %{$db->{$b}})
+ {
+ my $v = $db->{$b}->{$k};
+ $hit{$b}->{$k} = $v if !grep { $v !~ /$_/i } @q;
+ }
+ }
+
+ dump_data("Matches for $q:", \%hit);
+ }
+
+# The list of boards...
+sub dump_boards
+ {
+ my $db = shift or return;
+
+ my %name;
+ my $max_l = 0;
+ foreach my $b (keys %$db)
+ {
+ $name{$b} = $db->{$b}->{name} || 'Anonymous';
+ $max_l = length($b) if $max_l < length($b);
+ }
+
+ my $fmt = sprintf("%%-%ds %%s\n", $max_l + 2);
+
+ printf $fmt, "Tag", "Board Name";
+ foreach my $b (sort keys %name)
+ {
+ printf $fmt, $b, $name{$b};
+ }
+ }
+
+
+# dump arbitrary data with a title
+sub dump_data
+ {
+ my ($title, $data) = @_;
+
+ print "# $title\n", Dump($data);
+ }
+
+__END__
+
+=head1 NAME
+
+ard-parse-boards - Read data from the Arduino boards.txt file
+
+=head1 USAGE
+
+ Dump all the data in the file:
+ $ ard-parse-boards --dump
+
+ See which boards we know about:
+ $ ard-parse-boards --boards
+
+ Look for a particular board...
+ $ ard-parse-boards --find uno
+
+ ...multiple terms are implicitly ANDed:
+ $ ard-parse-boards --find duemil 328
+
+ Dump all the data for a particular board:
+ $ ard-parse-boards atmega328
+
+ Extract a particular field:
+ $ ard-parse-boards atmega328 build.f_cpu
+
+=head1 DESCRIPTION
+
+The Arduino software package ships with a boards.txt file which tells
+the Arduino IDE details about particular hardware. So when the user
+says he's got a shiny new Arduino Uno, boards.txt knows that it has a
+16MHz ATmega328 on it. It would be nice to access these data from the
+command line too.
+
+In normal operation you simply specify the tag given to the board in
+the boards.txt file, and optionally a field name. This program then
+extracts the data to STDOUT.
+
+Most boards have names which are quite unwieldy, so we always refer to
+a board by a tag, not its name. Strictly the tag is the bit before the
+first dot in the boards.txt key. You can see a list of board tags and
+names with the C<--boards> option.
+
+=head1 OPTIONS
+
+=over
+
+=item --boards_txt=[file]
+
+Specify the full path to the boards.txt file.
+
+=back
+
+The following options all disable the normal 'lookup' operation.
+
+=over
+
+=item --dump
+
+Dump the complete database in YAML format.
+
+=item ---boards
+
+Print a list of the tag and name of every board in the file.
+
+=item --find [query] <query> ...
+
+Find matching data. Strictly, return a list of values which match all
+of the query terms, treating each term as a case-insensitive regexp.
+
+For example:
+
+=over
+
+=item --find 328
+
+List data containing 328 (anywhere in the value).
+
+=item --find due
+
+List data containing 'due' (e.g. duemilanove).
+
+=item --find 328 due
+
+List data containing both 328 and due.
+
+=back
+
+=back
+
+=head1 BUGS AND LIMITATIONS
+
+There are no known bugs in this application.
+
+Please report problems to the author.
+
+Patches are welcome.
+
+=head1 AUTHOR
+
+Martin Oldfield, ex-atelier@mjo.tc
+
+Thanks to Mark Sproul who suggested doing something like this to me ages ago.
+
+=head1 LICENCE AND COPYRIGHT
+
+Copyright (c) 2011, Martin Oldfield. All rights reserved.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU Lesser General Public License as published
+by the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+
diff --git a/licence.txt b/licence.txt
new file mode 100644
index 0000000..4362b49
--- /dev/null
+++ b/licence.txt
@@ -0,0 +1,502 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
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