mirror of
https://github.com/Mikaela/Limnoria.git
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1184 lines
38 KiB
Python
Executable File
1184 lines
38 KiB
Python
Executable File
#!/usr/bin/env python
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#****************************************************************************
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# This file has been modified from its original version. It has been
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# formatted to fit your irc bot.
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#
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# The original version is a nifty PyQt application written by Douglas Bell,
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# available at http://www.bellz.org/convertall/.
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#
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# Below is the original copyright. Doug Bell rocks.
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# The hijacker is Keith Jones, and he has no bomb in his shoe.
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#
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#****************************************************************************
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#****************************************************************************
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# convertcore.py, provides non-GUI base classes for data
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#
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# ConvertAll, a units conversion program
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# Copyright (C) 2002, Douglas W. Bell
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#
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# This is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License, Version 2. This program is
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# distributed in the hope that it will be useful, but WITTHOUT ANY WARRANTY.
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#*****************************************************************************
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import re, copy, sys, os.path, StringIO
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import supybot.conf as conf
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import supybot.registry as registry
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#*****************************************************************************
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#
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# Units are defined by an optional quantity and an equivalent unit or unit
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# combination. A python expression may be used for the quantity, but is
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# resticted to using only the following operators: *, /, +, -, **, (, ).
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# Beware of integer division truncation: be sure to use a float for at
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# least one of the values.
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#
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# The unit type must be placed in square brackets before a set of units.
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# The first comment after the equivalent unit will be put in parenthesis after
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# the unit name (usually used to give the full name of an abbreviated unit).
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# The next comment will be used in the program list's comment column;
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# later comments and full line comments are ignored.
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#
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# Non-linear units are indicated with an equivalent unit in square brackets,
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# followed by either equations or equivalency lists for the definition.
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# For equations, two are given, separated by a ';'. Both are functions of
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# "x", the first going from the unit to the equivalent unit and the second
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# one in reverse. Any valid Python expression returning a float (including
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# the functions in the math module) should work. The equivalency list is a
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# python list of tuples giving points for linear interpolation.
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#
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# All units must reduce to primitive units, which are indicated by an '!'
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# as the equivalent unit. Circular refernces must also be avoided.
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#
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# Primitive units: kg, m, s, K, A, mol, cd, rad, sr, bit, unit
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#
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##############################################################################
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unitData = \
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"""
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#
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# mass units
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#
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[mass]
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kg = ! # kilogram
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kilogram = kg
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key = kg # # drug slang
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hectogram = 100 gram
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dekagram = 10 gram
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gram = 0.001 kg
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g = gram # gram
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decigram = 0.1 gram
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centigram = 0.01 gram
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milligram = 0.001 gram
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mg = milligram # milligram
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microgram = 0.001 mg
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tonne = 1000 kg # # metric
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metric ton = tonne
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megagram = tonne
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kilotonne = 1000 tonne # # metric
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carat = 0.2 gram
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ct = carat # carat
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amu = 1.66053873e-27 kg # atomic mass
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atomic mass unit = amu
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pound = 0.45359237 kg
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lb = pound # pound
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lbm = pound # pound
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ounce = 1/16.0 pound
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oz = ounce # ounce
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lid = ounce # # drug slang
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ton = 2000 lb # # non-metric
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kiloton = 1000 ton # # non-metric
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slug = lbf*s^2/ft
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stone = 14 lb
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grain = 1/7000.0 lb
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#
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# length / distance units
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#
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[length]
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m = ! # meter
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meter = m
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metre = m
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decimeter = 0.1 m
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cm = 0.01 m # centimeter
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centimeter = cm
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mm = 0.001 m # millimeter
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millimeter = mm
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micrometer = 1e-6 m
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micron = micrometer
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nanometer = 1e-9 m
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nm = nanometer # nanometer
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dekameter = 10 m
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hectometer = 100 m
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km = 1000 m # kilometer
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kilometer = km
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megameter = 1000 km
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angstrom = 1e-10 m
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fermi = 1e-15 m # # nuclear sizes
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barn = 1e-24 m # # particle physics
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inch = 2.54 cm
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in = inch # inch
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inches = inch
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mil = 0.001 inch
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microinch = 1e-6 inch
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microinches = microinch
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foot = 12 inch
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ft = foot # foot
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feet = foot
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yard = 3 ft
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yd = yard # yard
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mile = 5280 ft
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mi = mile # mile
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nautical mile = 1852 m
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nmi = nautical mile # nautical mile
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league = 3 mile
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chain = 66 ft
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fathom = 6 ft
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rod = 5.5 yard
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furlong = 40 rod
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hand = 4 inch
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cubit = 21.8 inch # # biblical unit
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point = 1/72.27 inch
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pica = 12 point
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caliber = 0.01 inch # # bullet sizes
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football field = 100 yd
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marathon = 46145 yd
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au = 1.49597870691e11 m # astronomical unit
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astronomical unit = au
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light year = 365.25 light speed * day
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light minute = light speed * min
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light second = light speed * s
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parsec = 3.0856775813e16 m
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kiloparsec = 1000 parsec
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megaparsec = 1000 kiloparsec
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screw size = [in] 0.013*x + 0.06 ; (x - 0.06) / 0.013 \
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# # Unified diameters, non-linear
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AWG = [in] 92.0**((36-x)/39.0)/200.0 ; \
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36 - 39.0*log(200.0*x)/log(92.0) \
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# American Wire Gauge \
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# use -1, -2 for 00, 000; non-linear
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American Wire Gauge = [in] 92.0**((36-x)/39.0)/200.0 ; \
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36 - 39.0*log(200.0*x)/log(92.0) \
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# # use -1, -2 for 00, 000; non-linear
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standard gauge = [in] [(-5, .448350), (1, .269010), (14, .0747250), \
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(16, .0597800), (17, .0538020), (20, .0358680), \
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(26, .0179340), (31, .0104615), (36, .00672525), \
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(38, .00597800)] # steel \
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# Manufacturers Std. Gauge, non-linear
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zinc gauge = [in] [(1, .002), (10, .02), (15, .04), (19, .06), \
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(23, .1), (24, .125), (27, .5), (28, 1)] \
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# # sheet metal thickness, non-linear
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ring size = [in] 0.1018*x + 1.4216 ; (x - 1.4216) / 0.1018 \
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# # US size, circum., non-linear
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shoe size mens = [in] x/3.0 + 7 + 1/3.0 ; (x - 7 - 1/3.0) * 3 \
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# # US sizes, non-linear
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shoe size womens = [in] x/3.0 + 6 + 5/6.0 ; (x - 6 - 5/6.0) * 3 \
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# # US sizes, non-linear
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#
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# time units
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#
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[time]
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s = ! # second
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sec = s # second
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second = s
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ms = 0.001 s # millisecond
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millisecond = ms
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microsecond = 1e-6 s
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ns = 1e-9 s # nanosecond
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nanosecond = ns
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minute = 60 s
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min = minute # minute
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hour = 60 min
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hr = hour # hour
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bell = 30 min # # naval definition
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watch = 4 hour
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watches = watch
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day = 24 hr
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week = 7 day
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wk = week # week
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fortnight = 14 day
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month = 1/12.0 year
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year = 365.242198781 day
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yr = year # year
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calendar year = 365 day
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decade = 10 year
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century = 100 year
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centuries = century
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millennium = 1000 year
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millennia = millennium
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[scheduling]
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man hour = 168/40.0 hour
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man week = 40 man hour
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man month = 1/12.0 man year
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man year = 52 man week
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#
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# temperature
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#
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[temperature]
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K = ! # Kelvin
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Kelvin = K
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deg K = K # Kelvin
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degree Kelvin = K
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C = [K] x + 273.15 ; x - 273.15 # Celsius # non-linear
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Celsius = [K] x + 273.15 ; x - 273.15 # # non-linear
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deg C = [K] x + 273.15 ; x - 273.15 # Celsius # non-linear
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degree Celsius = [K] x + 273.15 ; x - 273.15 # # non-linear
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R = 5/9.0 K # Rankine
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Rankine = R
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deg R = R # Rankine
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F = [R] x + 459.67 ; x - 459.67 # Fahrenheit # non-linear
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Fahrenheit = [R] x + 459.67 ; x - 459.67 # # non-linear
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deg F = [R] x + 459.67 ; x - 459.67 # Fahrenheit # non-linear
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degree Fahrenheit = [R] x + 459.67 ; x - 459.67 # # non-linear
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[temp. diff.]
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C deg = K # Celsius degree
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Celsius degree = C deg
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F deg = R # Fahrenheit deg.
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Fahrenheit degree = F deg
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#
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# electrical units
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#
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[current]
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A = ! # ampere
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ampere = A
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amp = A
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milliampere = 0.001 A
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milliamp = milliampere
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mA = milliampere # milliampere
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microampere = 0.001 mA
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kiloampere = 1000 A
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kA = kiloampere # kiloampere
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[charge]
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coulomb = A*s
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amp hour = A*hr
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mAh = 0.001 amp hour # milliamp hour
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milliamp hour = mAh
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[potential]
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volt = W/A
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V = volt # volt
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millivolt = 0.001 volt
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mV = millivolt # millivolt
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kilovolt = 1000 volt
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kV = kilovolt # kilovolt
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[resistance]
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ohm = V/A
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milliohm = 0.001 ohm
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microhm = 0.001 milliohm
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kilohm = 1000 ohm
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[conductance]
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siemens = A/V
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[capacitance]
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farad = coulomb/V
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millifarad = 0.001 farad
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microfarad = 0.001 millifarad
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nanofarad = 1e-9 farad
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picofarad = 1e-12 farad
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[magn. flux]
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weber = V*s
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Wb = weber # weber
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[inductance]
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henry = Wb/A
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H = henry # henry
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millihenry = 0.001 henry
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mH = millihenry # millihenry
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microhenry = 0.001 mH
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[flux density]
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tesla = Wb/m^2
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T = tesla # tesla
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#
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# molecular units
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#
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[molecular qty]
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mol = ! # mole
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mole = mol
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kilomole = 1000 mol
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kmol = kilomole # kilomole
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[size of a mol]
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avogadro = gram/amu*mol
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#
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# Illumination units
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#
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[lum. intens.]
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cd = ! # candela
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candela = cd
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[luminous flux]
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lumen = cd * sr
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lm = lumen # lumen
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[illuminance]
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lux = lumen/m^2
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footcandle = lumen/ft^2
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metercandle = lumen/m^2
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[luminance]
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lambert = cd/pi*cm^2
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millilambert = 0.001 lambert
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footlambert = cd/pi*ft^2
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#
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# angular units
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#
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[angle]
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radian = !
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rad = radian # radian
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circle = 2 pi*radian
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turn = circle
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revolution = circle
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rev = revolution # revolution
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degree = 1/360.0 circle
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deg = degree # degree
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arc min = 1/60.0 degree # minute
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arc minute = arc min
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min arc = arc min # minute
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minute arc = arc min
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arc sec = 1/60.0 arc min # second
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arc second = arc sec
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sec arc = arc sec # second
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second arc = arc sec
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quadrant = 1/4.0 circle
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right angle = quadrant
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gradian = 0.01 quadrant
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#
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# solid angle units
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#
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[solid angle]
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sr = ! # steradian
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steradian = sr
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sphere = 4 pi*sr
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hemisphere = 1/2.0 sphere
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#
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# information units
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#
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[data]
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bit = !
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kilobit = 1000 bit # # based on power of 10
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byte = 8 bit
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B = byte # byte
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kilobyte = 1000 byte # # based on power of 2
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kB = kilobyte # kilobyte # based on power of 2
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megabyte = 1000 kB # # based on power of 2
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MB = megabyte # megabyte # based on power of 2
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gigabyte = 1000 MB # # based on power of 2
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GB = gigabyte # gigabyte # based on power of 2
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terabyte = 1000 GB # # based on power of 2
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TB = terabyte # terabyte # based on power of 2
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petabyte = 1000 TB # # based on power of 2
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PB = petabyte # petabyte # based on power of 2
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kibibyte = 1024 byte
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KiB = kibibyte # kibibyte
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mebibyte = 1024 KiB
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MiB = mebibyte # mebibyte
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gibibyte = 1024 MiB
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GiB = gibibyte # gibibyte
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tebibyte = 1024 GiB
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TiB = tebibyte # tebibyte
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pebibyte = 1024 TiB
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PiB = pebibyte # pebibyte
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[data transfer]
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bps = bit/sec # bits / second
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kbps = 1000 bps # kilobits / sec. # based on power of 10
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#
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# Unitless numbers
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#
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[quantity]
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unit = !
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1 = unit # unit
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pi = 3.14159265358979323846 unit
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pair = 2 unit
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hat trick = 3 unit # # sports
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dozen = 12 unit
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doz = dozen # dozen
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bakers dozen = 13 unit
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score = 20 unit
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gross = 144 unit
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great gross = 12 gross
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ream = 500 unit
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percent = 0.01 unit
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% = percent
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mill = 0.001 unit
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[interest rate]
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APR = [unit] log(1 + x/100) ; (exp(x) - 1)*100 \
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# annual % rate # based on continuous compounding
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[concentration]
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proof = 1/200.0 unit # # alcohol content
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ppm = 1e-6 unit # parts per million
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parts per million = ppm
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ppb = 1e-9 unit # parts per billion
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parts per billion = ppb
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ppt = 1e-12 unit # parts per trillion
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parts per trillion = ppt
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karat = 1/24.0 unit # # gold purity
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carat gold = karat # # gold purity
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#
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# force units
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#
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[force]
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newton = kg*m/s^2
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N = newton # newton
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dekanewton = 10 newton
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kilonewton = 1000 N
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kN = kilonewton # kilonewton
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meganewton = 1000 kN
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millinewton = 0.001 N
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dyne = cm*g/s^2
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kg force = kg * gravity # kilogram f
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kgf = kg force # kilogram force
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kilogram force = kg force
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gram force = g * gravity
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pound force = lbm * gravity
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lbf = pound force # pound force
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ton force = ton * gravity
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ounce force = ounce * gravity
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ozf = ounce force # ounce force
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#
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# area units
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#
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[area]
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square meter = m^2
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are = 100 m^2
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hectare = 100 are
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acre = 10 chain^2
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section = mile^2
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township = 36 section
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homestead = 160 acre
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circular inch = 1/4.0 pi*in^2 # # area of 1 inch circle
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circular mil = 1/4.0 pi*mil^2 # # area of 1 mil circle
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#
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# volume units
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#
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[volume]
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cc = cm^3 # cubic centimeter
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cubic centimeter = cc
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liter = 1000 cc
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L = liter # liter
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litre = liter
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deciliter = 0.1 liter
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centiliter = 0.01 liter
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milliliter = cc
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mL = milliliter # milliliter
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dekaliter = 10 liter
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hectoliter = 100 liter
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kiloliter = 1000 liter
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kL = kiloliter # kiloliter
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cubic meter = kiloliter
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megaliter = 1000 kiloliter
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gallon = 231 in^3
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gal = gallon # gallon
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quart = 1/4.0 gallon
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qt = quart # quart
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pint = 1/2.0 quart
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pt = pint # pint
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fluid ounce = 1/16.0 pint
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fl oz = fluid ounce # fluid ounce
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ounce fluid = fluid ounce
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cup = 8 fl oz
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tablespoon = 1/16.0 cup
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tbsp = tablespoon # tablespoon
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teaspoon = 1/3.0 tbsp
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tsp = teaspoon # teaspoon
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barrel = 42 gallon
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bbl = barrel # barrel
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shot = 1.5 fl oz
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fifth = 1/5.0 gallon # # alcohol
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wine bottle = 750 mL
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magnum = 1.5 liter # # alcohol
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keg = 15.5 gallon # # beer
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bushel = 2150.42 in^3
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peck = 1/4.0 bushel
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cord = 128 ft^3
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board foot = ft^2*in
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board feet = board foot
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#
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# velocity units
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#
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[velocity]
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knot = nmi/hr
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kt = knot # knot
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light speed = 2.99792458e8 m/s
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mph = mi/hr # miles/hour
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kph = km/hr # kilometers/hour
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mach = 331.46 m/s # # speed sound at STP
|
|
[rot. velocity]
|
|
rpm = rev/min # rev/min
|
|
rps = rev/sec # rev/sec
|
|
|
|
|
|
#
|
|
# flow rate units
|
|
#
|
|
[fluid flow]
|
|
gph = gal/hr # gallons/hour
|
|
gpm = gal/min # gallons/minute
|
|
cfs = ft^3/sec # cu ft/second
|
|
cfm = ft^3/min # cu ft/minute
|
|
lpm = L/min # liter/min
|
|
[gas flow]
|
|
sccm = atm*cc/min # std cc/min # pressure * flow
|
|
sccs = atm*cc/sec # std cc/sec # pressure * flow
|
|
slpm = atm*L/min # std liter/min # pressure * flow
|
|
slph = atm*L/hr # std liter/hour # pressure * flow
|
|
scfh = atm*ft^3/hour # std cu ft/hour # pressure * flow
|
|
scfm = atm*ft^3/min # std cu ft/min # pressure * flow
|
|
|
|
|
|
#
|
|
# pressure units
|
|
#
|
|
[pressure]
|
|
Pa = N/m^2 # pascal
|
|
pascal = Pa
|
|
kPa = 1000 Pa # kilopascal
|
|
kilopascal = kPa
|
|
MPa = 1000 kPa # megapascal
|
|
megapascal = MPa
|
|
atm = 101325 Pa # atmosphere
|
|
atmosphere = atm
|
|
bar = 1e5 Pa
|
|
mbar = 0.001 bar # millibar
|
|
millibar = mbar
|
|
microbar = 0.001 mbar
|
|
decibar = 0.1 bar
|
|
kilobar = 1000 bar
|
|
mm Hg = mm*density Hg*gravity
|
|
millimeter of Hg = mm Hg
|
|
torr = mm Hg
|
|
in Hg = in*density Hg*gravity # inch of Hg
|
|
inch of Hg = in Hg
|
|
m water = m*density water*gravity # meter of H2O
|
|
m H2O = m water # meter of H2O
|
|
meter of water = m water
|
|
in water = in*density water*gravity # inch of H2O
|
|
in H2O = in water # inch of H2O
|
|
inch of water = in water
|
|
ft water = ft*density water*gravity # feet of H2O
|
|
ft H2O = ft water # feet of H20
|
|
feet of water = ft water
|
|
foot of head = ft water
|
|
ft hd = ft water # foot of head
|
|
psi = lbf/in^2 # pound / sq inch
|
|
pound per sq inch = psi
|
|
ksi = 1000 psi # 1000 lb / sq inch
|
|
|
|
|
|
#
|
|
# density units
|
|
#
|
|
[density]
|
|
density water = gram/cm^3
|
|
density sea water = 1.025 gram/cm^3
|
|
density Hg = 13.5950981 gram/cm^3
|
|
density air = 1.293 kg/m^3 # # at STP
|
|
density steel = 0.283 lb/in^3 # # carbon steel
|
|
density aluminum = 0.098 lb/in^3
|
|
density zinc = 0.230 lb/in^3
|
|
density brass = 0.310 lb/in^3 # # 80Cu-20Zn
|
|
density copper = 0.295 lb/in^3
|
|
density iron = 0.260 lb/in^3 # # cast iron
|
|
density nickel = 0.308 lb/in^3
|
|
density tin = 0.275 lb/in^3
|
|
density titanium = 0.170 lb/in^3
|
|
density silver = 0.379 lb/in^3
|
|
density nylon = 0.045 lb/in^3
|
|
density polycarbonate = 0.045 lb/in^3
|
|
|
|
|
|
#
|
|
# energy units
|
|
#
|
|
[energy]
|
|
joule = N*m
|
|
J = joule # joule
|
|
kilojoule = 1000 joule
|
|
kJ = kilojoule # kilojoule
|
|
megajoule = 1000 kilojoule
|
|
gigajoule = 1000 megajoule
|
|
millijoule = 0.001 joule
|
|
mJ = millijoule # millijoule
|
|
calorie = 4.1868 J
|
|
cal = calorie # calorie
|
|
kilocalorie = 1000 cal
|
|
kcal = kilocalorie # kilocalorie
|
|
calorie food = kilocalorie
|
|
Btu = cal*lb*R/g*K # British thermal unit
|
|
British thermal unit = Btu
|
|
erg = cm*dyne
|
|
electronvolt = 1.602176462e-19 J
|
|
eV = electronvolt # electronvolt
|
|
kWh = kW*hour # kilowatt-hour
|
|
kilowatt hour = kWh
|
|
ton TNT = 4.184e9 J
|
|
|
|
|
|
#
|
|
# power units
|
|
#
|
|
[power]
|
|
watt = J/s
|
|
W = watt # watt
|
|
kilowatt = 1000 W
|
|
kW = kilowatt # kilowatt
|
|
megawatt = 1000 kW
|
|
MW = megawatt # megawatt
|
|
gigawatt = 1000 MW
|
|
GW = gigawatt # gigawatt
|
|
milliwatt = 0.001 W
|
|
horsepower = 550 ft*lbf/sec
|
|
hp = horsepower # horsepower
|
|
metric horsepower = 75 kgf*m/s
|
|
|
|
|
|
#
|
|
# frequency
|
|
#
|
|
[frequency]
|
|
hertz = unit/sec
|
|
Hz = hertz # hertz
|
|
millihertz = 0.001 Hz
|
|
kilohertz = 1000 Hz
|
|
kHz = kilohertz # kilohertz
|
|
megahertz = 1000 kHz
|
|
MHz = megahertz # megahertz
|
|
gigahertz = 1000 MHz
|
|
GHz = gigahertz # gigahertz
|
|
|
|
|
|
#
|
|
# radioactivity
|
|
#
|
|
[radioactivity]
|
|
becquerel = unit/sec
|
|
Bq = becquerel # becquerel
|
|
curie = 3.7e10 Bq
|
|
millicurie = 0.001 curie
|
|
roentgen = 2.58e-4 coulomb/kg
|
|
[radiation dose]
|
|
gray = J/kg
|
|
Gy = gray # gray
|
|
rad. abs. dose = 0.001 Gy # # commonly rad
|
|
sievert = J/kg # # equiv. dose
|
|
millisievert = 0.001 sievert # # equiv. dose
|
|
Sv = sievert # sievert # equiv. dose
|
|
rem = 0.01 Sv # # roentgen equiv mammal
|
|
millirem = 0.001 rem # # roentgen equiv mammal
|
|
|
|
#
|
|
# viscosity
|
|
#
|
|
[dyn viscosity]
|
|
poise = g/cm*s
|
|
P = poise # poise
|
|
centipoise = 0.01 poise
|
|
cP = centipoise # centipoise
|
|
|
|
[kin viscosity]
|
|
stokes = cm^2/s
|
|
St = stokes # stokes
|
|
centistokes = 0.01 stokes
|
|
cSt = centistokes # centistokes
|
|
|
|
|
|
#
|
|
# misc. units
|
|
#
|
|
[acceleration]
|
|
gravity = 9.80665 m/s^2
|
|
[constant]
|
|
gravity constant = 6.673e-11 N*m^2/kg^2
|
|
gas constant = 8.314472 J/mol*K # R # based on gram mol
|
|
[fuel consumpt.]
|
|
mpg = mi/gal # miles/gallon
|
|
"""
|
|
|
|
|
|
class UnitGroup:
|
|
"Stores, updates and converts a group of units"
|
|
maxDecPlcs = 8
|
|
def __init__(self, unitData, option):
|
|
self.unitData = unitData
|
|
self.option = option
|
|
self.unitList = []
|
|
self.currentNum = 0
|
|
self.factor = 1.0
|
|
self.reducedList = []
|
|
self.linear = 1
|
|
|
|
def update(self, text, cursorPos=None):
|
|
"Decode user entered text into units"
|
|
self.unitList = self.parseGroup(text)
|
|
if cursorPos != None:
|
|
self.updateCurrentUnit(text, cursorPos)
|
|
else:
|
|
self.currentNum = len(self.unitList) - 1
|
|
|
|
def updateCurrentUnit(self, text, cursorPos):
|
|
"Set current unit number"
|
|
self.currentNum = len(re.findall('[\*/]', text[:cursorPos]))
|
|
|
|
def currentUnit(self):
|
|
"Return current unit if its a full match, o/w None"
|
|
if self.unitList and self.unitList[self.currentNum].equiv:
|
|
return self.unitList[self.currentNum]
|
|
return None
|
|
|
|
def currentPartialUnit(self):
|
|
"Return unit with at least a partial match, o/w None"
|
|
if not self.unitList:
|
|
return None
|
|
return self.unitData.findPartialMatch(self.unitList[self.currentNum]\
|
|
.name)
|
|
|
|
def currentSortPos(self):
|
|
"Return unit near current unit for sorting"
|
|
if not self.unitList:
|
|
return self.unitData[self.unitData.sortedKeys[0]]
|
|
return self.unitData.findSortPos(self.unitList[self.currentNum]\
|
|
.name)
|
|
|
|
def replaceCurrent(self, unit):
|
|
"Replace the current unit with unit"
|
|
if self.unitList:
|
|
exp = self.unitList[self.currentNum].exp
|
|
self.unitList[self.currentNum] = copy.copy(unit)
|
|
self.unitList[self.currentNum].exp = exp
|
|
else:
|
|
self.unitList.append(copy.copy(unit))
|
|
|
|
def completePartial(self):
|
|
"Replace a partial unit with a full one"
|
|
if self.unitList and not self.unitList[self.currentNum].equiv:
|
|
text = self.unitList[self.currentNum].name
|
|
unit = self.unitData.findPartialMatch(text)
|
|
if unit:
|
|
exp = self.unitList[self.currentNum].exp
|
|
self.unitList[self.currentNum] = copy.copy(unit)
|
|
self.unitList[self.currentNum].exp = exp
|
|
|
|
def moveToNext(self, upward):
|
|
"Replace unit with adjacent one based on match or sort position"
|
|
unit = self.currentSortPos()
|
|
num = self.unitData.sortedKeys.index(unit.name.\
|
|
replace(' ', '')) \
|
|
+ (upward and -1 or 1)
|
|
if 0 <= num < len(self.unitData.sortedKeys):
|
|
self.replaceCurrent(self.unitData[self.unitData.sortedKeys[num]])
|
|
|
|
def addOper(self, mult):
|
|
"Add new operator & blank unit after current, * if mult is true"
|
|
if self.unitList:
|
|
self.completePartial()
|
|
prevExp = self.unitList[self.currentNum].exp
|
|
self.currentNum += 1
|
|
self.unitList.insert(self.currentNum, Unit(''))
|
|
if (not mult and prevExp > 0) or (mult and prevExp < 0):
|
|
self.unitList[self.currentNum].exp = -1
|
|
|
|
def changeExp(self, newExp):
|
|
"Change the current unit's exponent"
|
|
if self.unitList:
|
|
self.completePartial()
|
|
if self.unitList[self.currentNum].exp > 0:
|
|
self.unitList[self.currentNum].exp = newExp
|
|
else:
|
|
self.unitList[self.currentNum].exp = -newExp
|
|
|
|
def clearUnit(self):
|
|
"Remove units"
|
|
self.unitList = []
|
|
|
|
def parseGroup(self, text):
|
|
"Return list of units from text string"
|
|
unitList = []
|
|
parts = [part.strip() for part in re.split('([\*/])', text)]
|
|
numerator = 1
|
|
while parts:
|
|
unit = self.parseUnit(parts.pop(0))
|
|
if not numerator:
|
|
unit.exp = -unit.exp
|
|
if parts and parts.pop(0) == '/':
|
|
numerator = not numerator
|
|
unitList.append(unit)
|
|
return unitList
|
|
|
|
def parseUnit(self, text):
|
|
"Return a valid or invalid unit with exponent from a text string"
|
|
parts = text.split('^', 1)
|
|
exp = 1
|
|
if len(parts) > 1: # has exponent
|
|
try:
|
|
exp = int(parts[1])
|
|
except ValueError:
|
|
if parts[1].lstrip().startswith('-'):
|
|
exp = -Unit.partialExp # tmp invalid exp
|
|
else:
|
|
exp = Unit.partialExp
|
|
unitText = parts[0].strip().replace(' ', '')
|
|
unit = copy.copy(self.unitData.get(unitText, None))
|
|
if not unit and unitText and unitText[-1] == 's' and not \
|
|
self.unitData.findPartialMatch(unitText): # check for plural
|
|
unit = copy.copy(self.unitData.get(unitText[:-1], None))
|
|
if not unit:
|
|
#unit = Unit(parts[0].strip()) # tmp invalid unit
|
|
raise UnitDataError('%s is not a valid unit.' % (unitText))
|
|
unit.exp = exp
|
|
return unit
|
|
|
|
def unitString(self, unitList=None):
|
|
"Return the full string for this group or a given group"
|
|
if unitList == None:
|
|
unitList = self.unitList[:]
|
|
fullText = ''
|
|
if unitList:
|
|
fullText = unitList[0].unitText(0)
|
|
numerator = 1
|
|
for unit in unitList[1:]:
|
|
if (numerator and unit.exp > 0) \
|
|
or (not numerator and unit.exp < 0):
|
|
fullText = '%s * %s' % (fullText, unit.unitText(1))
|
|
else:
|
|
fullText = '%s / %s' % (fullText, unit.unitText(1))
|
|
numerator = not numerator
|
|
return fullText
|
|
|
|
def groupValid(self):
|
|
"Return 1 if all unitself.reducedLists are valid"
|
|
if not self.unitList:
|
|
return 0
|
|
for unit in self.unitList:
|
|
if not unit.unitValid():
|
|
return 0
|
|
return 1
|
|
|
|
def reduceGroup(self):
|
|
"Update reduced list of units and factor"
|
|
self.linear = 1
|
|
self.reducedList = []
|
|
self.factor = 1.0
|
|
if not self.groupValid():
|
|
return
|
|
count = 0
|
|
tmpList = self.unitList[:]
|
|
while tmpList:
|
|
count += 1
|
|
if count > 5000:
|
|
raise UnitDataError, 'Circular unit definition'
|
|
unit = tmpList.pop(0)
|
|
if unit.equiv == '!':
|
|
self.reducedList.append(copy.copy(unit))
|
|
elif not unit.equiv:
|
|
raise UnitDataError, 'Invalid conversion for "%s"' % unit.name
|
|
else:
|
|
if unit.fromEqn:
|
|
self.linear = 0
|
|
newList = self.parseGroup(unit.equiv)
|
|
for newUnit in newList:
|
|
newUnit.exp *= unit.exp
|
|
tmpList.extend(newList)
|
|
self.factor *= unit.factor**unit.exp
|
|
self.reducedList.sort()
|
|
tmpList = self.reducedList[:]
|
|
self.reducedList = []
|
|
for unit in tmpList:
|
|
if self.reducedList and unit == self.reducedList[-1]:
|
|
self.reducedList[-1].exp += unit.exp
|
|
else:
|
|
self.reducedList.append(unit)
|
|
self.reducedList = [unit for unit in self.reducedList if \
|
|
unit.name != 'unit' and unit.exp != 0]
|
|
|
|
def categoryMatch(self, otherGroup):
|
|
"Return 1 if unit types are equivalent"
|
|
if not self.checkLinear() or not otherGroup.checkLinear():
|
|
return 0
|
|
return self.reducedList == otherGroup.reducedList and \
|
|
[unit.exp for unit in self.reducedList] \
|
|
== [unit.exp for unit in otherGroup.reducedList]
|
|
|
|
def checkLinear(self):
|
|
"Return 1 if linear or acceptable non-linear"
|
|
if not self.linear:
|
|
if len(self.unitList) > 1 or self.unitList[0].exp != 1:
|
|
return 0
|
|
return 1
|
|
|
|
def compatStr(self):
|
|
"Return string with reduced unit or linear compatability problem"
|
|
if self.checkLinear():
|
|
return self.unitString(self.reducedList)
|
|
return 'Cannot combine non-linear units'
|
|
|
|
def convert(self, num, toGroup):
|
|
|
|
"Return num of this group converted to toGroup"
|
|
if self.linear:
|
|
num *= self.factor
|
|
else:
|
|
num = self.nonLinearCalc(num, 1) * self.factor
|
|
|
|
|
|
n2 = -1
|
|
if toGroup.linear:
|
|
n2 = num / toGroup.factor
|
|
else:
|
|
n2 = toGroup.nonLinearCalc(num / toGroup.factor, 0)
|
|
return n2
|
|
|
|
def nonLinearCalc(self, num, isFrom):
|
|
"Return result of non-linear calculation"
|
|
|
|
x = num
|
|
try:
|
|
if self.unitList[0].toEqn: # regular equations
|
|
if isFrom:
|
|
temp = float(eval(self.unitList[0].fromEqn))
|
|
return temp
|
|
temp = float(eval(self.unitList[0].toEqn))
|
|
return temp
|
|
data = list(eval(self.unitList[0].fromEqn)) # extrapolation list
|
|
if isFrom:
|
|
data = [(float(group[0]), float(group[1])) for group in data]
|
|
else:
|
|
data = [(float(group[1]), float(group[0])) for group in data]
|
|
data.sort()
|
|
pos = len(data) - 1
|
|
for i in range(len(data)):
|
|
if num <= data[i][0]:
|
|
pos = i
|
|
break
|
|
if pos == 0:
|
|
pos = 1
|
|
y = (num-data[pos-1][0]) / float(data[pos][0]-data[pos-1][0]) \
|
|
* (data[pos][1]-data[pos-1][1]) + data[pos-1][1]
|
|
return y
|
|
except OverflowError:
|
|
return 1e9999
|
|
except:
|
|
raise UnitDataError, 'Bad equation for %s' % self.unitList[0].name
|
|
|
|
def convertStr(self, num, toGroup):
|
|
"Return formatted string of converted number"
|
|
return self.formatNumStr(self.convert(num, toGroup))
|
|
|
|
def formatNumStr(self, num):
|
|
"Return num string formatted per options"
|
|
decPlcs = self.option.intData('DecimalPlaces', 0, UnitGroup.maxDecPlcs)
|
|
if self.option.boolData('SciNotation'):
|
|
return ('%%0.%dE' % decPlcs) % num
|
|
if self.option.boolData('FixedDecimals'):
|
|
return ('%%0.%df' % decPlcs) % num
|
|
return ('%%0.%dG' % decPlcs) % num
|
|
|
|
|
|
class UnitDataError(Exception):
|
|
pass
|
|
|
|
|
|
class UnitData(dict):
|
|
def __init__(self):
|
|
dict.__init__(self)
|
|
self.sortedKeys = []
|
|
|
|
def readData(self):
|
|
"Read all unit data from file"
|
|
types = []
|
|
typeUnits = {}
|
|
try:
|
|
f = StringIO.StringIO(unitData)
|
|
lines = f.readlines()
|
|
f.close()
|
|
except IOError:
|
|
raise UnitDataError, 'Can not read "units.dat" file'
|
|
for i in range(len(lines)): # join continuation lines
|
|
delta = 1
|
|
while lines[i].rstrip().endswith('\\'):
|
|
lines[i] = ''.join([lines[i].rstrip()[:-1], lines[i+delta]])
|
|
lines[i+delta] = ''
|
|
delta += 1
|
|
units = [Unit(line) for line in lines if \
|
|
line.split('#', 1)[0].strip()] # remove comment lines
|
|
typeText = ''
|
|
for unit in units: # find & set headings
|
|
if unit.name.startswith('['):
|
|
typeText = unit.name[1:-1].strip()
|
|
types.append(typeText)
|
|
typeUnits[typeText] = []
|
|
unit.typeName = typeText
|
|
units = [unit for unit in units if unit.equiv] # keep valid units
|
|
for unit in units:
|
|
self[unit.name.replace(' ', '')] = unit
|
|
typeUnits[unit.typeName].append(unit.name)
|
|
self.sortedKeys = self.keys()
|
|
self.sortedKeys.sort()
|
|
|
|
if len(self.sortedKeys) < len(units):
|
|
raise UnitDataError, 'Duplicate unit names found'
|
|
|
|
return (types, typeUnits)
|
|
|
|
def findPartialMatch(self, text):
|
|
"Return first partially matching unit or None"
|
|
text = text.replace(' ', '')
|
|
if not text:
|
|
return None
|
|
for name in self.sortedKeys:
|
|
if name.startswith(text):
|
|
return self[name]
|
|
return None
|
|
|
|
def findSortPos(self, text):
|
|
"Return unit whose abbrev comes immediately after text"
|
|
text = text.replace(' ', '')
|
|
for name in self.sortedKeys:
|
|
if text <= name:
|
|
return self[name]
|
|
return self[self.sortedKeys[-1]]
|
|
|
|
|
|
class Unit:
|
|
"Reads and stores a single unit conversion"
|
|
partialExp = 1000
|
|
def __init__(self, dataStr):
|
|
dataList = dataStr.split('#')
|
|
unitList = dataList.pop(0).split('=', 1)
|
|
self.name = unitList.pop(0).strip()
|
|
self.equiv = ''
|
|
self.factor = 1.0
|
|
self.fromEqn = '' # used only for non-linear units
|
|
self.toEqn = '' # used only for non-linear units
|
|
if unitList:
|
|
self.equiv = unitList[0].strip()
|
|
if self.equiv[0] == '[': # used only for non-linear units
|
|
try:
|
|
self.equiv, self.fromEqn = re.match('\[(.*?)\](.*)', \
|
|
self.equiv).groups()
|
|
if ';' in self.fromEqn:
|
|
self.fromEqn, self.toEqn = self.fromEqn.split(';', 1)
|
|
self.toEqn = self.toEqn.strip()
|
|
self.fromEqn = self.fromEqn.strip()
|
|
except AttributeError:
|
|
raise UnitDataError, 'Bad equation for "%s"' % self.name
|
|
else: # split factor and equiv unit for linear
|
|
parts = self.equiv.split(None, 1)
|
|
if len(parts) > 1 and re.search('[^\d\.eE\+\-\*/]', parts[0]) \
|
|
== None: # only allowed digits and operators
|
|
try:
|
|
self.factor = float(eval(parts[0]))
|
|
self.equiv = parts[1]
|
|
except:
|
|
pass
|
|
self.comments = [comm.strip() for comm in dataList]
|
|
self.comments.extend([''] * (2 - len(self.comments)))
|
|
self.exp = 1
|
|
self.viewLink = [None, None]
|
|
self.typeName = ''
|
|
|
|
def description(self):
|
|
"Return name and 1st comment (usu. full name) if applicable"
|
|
if self.comments[0]:
|
|
return '%s (%s)' % (self.name, self.comments[0])
|
|
return self.name
|
|
|
|
def unitValid(self):
|
|
"Return 1 if unit and exponent are valid"
|
|
if self.equiv and -Unit.partialExp < self.exp < Unit.partialExp:
|
|
return 1
|
|
return 0
|
|
|
|
def unitText(self, absExp=0):
|
|
"Return text for unit name with exponent or absolute value of exp"
|
|
exp = self.exp
|
|
if absExp:
|
|
exp = abs(self.exp)
|
|
if exp == 1:
|
|
return self.name
|
|
if -Unit.partialExp < exp < Unit.partialExp:
|
|
return '%s^%d' % (self.name, exp)
|
|
if exp > 1:
|
|
return '%s^' % self.name
|
|
else:
|
|
return '%s^-' % self.name
|
|
|
|
def __cmp__(self, other):
|
|
return cmp(self.name, other.name)
|
|
|
|
############################################################################
|
|
# Wrapper functionality
|
|
#
|
|
############################################################################
|
|
|
|
|
|
# Parse the data file, and set everything up for conversion
|
|
data = UnitData()
|
|
(types, unitsByType) = data.readData()
|
|
|
|
# At the moment, we're not handling options
|
|
option = None
|
|
|
|
# set up the objects for unit conversion
|
|
fromUnit = UnitGroup(data, option)
|
|
toUnit = UnitGroup(data, option)
|
|
|
|
def convert(num, unit1, unit2):
|
|
""" Convert from one unit to another
|
|
|
|
num is the factor for the first unit. Raises UnitDataError for
|
|
various errors.
|
|
"""
|
|
fromUnit.update(unit1)
|
|
toUnit.update(unit2)
|
|
|
|
fromUnit.reduceGroup()
|
|
toUnit.reduceGroup()
|
|
|
|
# Match up unit categories
|
|
if not fromUnit.categoryMatch(toUnit):
|
|
raise UnitDataError('unit categories did not match')
|
|
|
|
return fromUnit.convert(num, toUnit)
|
|
|
|
|
|
|
|
def units(type):
|
|
""" Return comma separated string list of units of given type, or
|
|
a list of types if the argument is not valid.
|
|
"""
|
|
if type in types:
|
|
return '%s units: %s' % (type, ', '.join(unitsByType[type]))
|
|
else:
|
|
return 'valid types: ' + ', '.join(types)
|
|
|
|
|