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extract_README.py
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extract_README.py
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#!/usr/bin/python3
r'''Constructs README, README.org files
The README files are generated by this script. They are made from:
- The main module docstring, with some org markup applied to the README.org, but
not to the README
- The docstrings from each API function in the module, with some org markup
applied to the README.org, but not to the README
- README.footer.org, copied verbatim
The main module name must be passed in as the first cmdline argument.
If we want to regenerate the figures linked in the README.org documentation,
pass "DOCUMENTATION-PLOTS" as the first argument
'''
import sys
import os.path
def generate_plots():
r'''Makes plots in the docstring of the gnuplotlib.py module'''
import numpy as np
import gnuplotlib as gp
x = np.arange(101) - 50
gp.plot(x**2,
hardcopy='basic-parabola-plot-pops-up.svg')
g1 = gp.gnuplotlib(title = 'Parabola with error bars',
_with = 'xyerrorbars',
hardcopy = 'parabola-with-x-y-errobars-pops-up-in-a-new-window.svg')
g1.plot( x**2 * 10, np.abs(x)/10, np.abs(x)*25,
legend = 'Parabola',
tuplesize = 4 )
x,y = np.ogrid[-10:11,-10:11]
gp.plot( x**2 + y**2,
title = 'Heat map',
unset = 'grid',
cmds = 'set view map',
square = True,
_with = 'image',
tuplesize = 3,
hardcopy = 'Heat-map-pops-up-where-first-parabola-used-to-be.svg')
theta = np.linspace(0, 6*np.pi, 200)
z = np.linspace(0, 5, 200)
g2 = gp.gnuplotlib(_3d = True,
hardcopy = 'Two-3D-spirals-together-in-a-new-window.svg')
g2.plot( np.cos(theta),
np.vstack((np.sin(theta), -np.sin(theta))),
z )
x = np.arange(1000)
gp.plot( (x*x, dict(histogram= True,
binwidth = 20000,
legend = 'Frequency')),
(x*x, dict(histogram='cumulative',
legend = 'Cumulative',
y2 = True )),
ylabel = 'Histogram frequency',
y2label = 'Cumulative sum',
_set='key opaque',
hardcopy = 'A-density-and-cumulative-histogram-of-x-2-are-plotted-on-the-same-plot.svg' )
gp.plot( (x*x, dict(histogram=True,
binwidth =20000,
legend = 'Frequency')),
(x*x, dict(histogram='cumulative',
legend = 'Cumulative')),
_xmin=0, _xmax=1e6,
multiplot='title "multiplot histograms" layout 2,1',
_set=('lmargin at screen 0.05',
'key opaque'),
hardcopy = 'Same-histograms-but-plotted-on-two-separate-plots.svg')
try:
arg1 = sys.argv[1]
except:
raise Exception("Need main module name or 'DOCUMENTATION-PLOTS' as the first cmdline arg")
if arg1 == 'DOCUMENTATION-PLOTS':
generate_plots()
sys.exit(0)
modname = arg1
exec( 'import {} as mod'.format(modname) )
import inspect
import re
try:
from StringIO import StringIO ## for Python 2
except ImportError:
from io import StringIO ## for Python 3
def dirmod():
r'''Returns all non-internal functions in a module
Same as dir(mod), but returns only functions, in the order of definition.
Anything starting with _ is skipped
'''
with open('{}.py'.format(modname), 'r') as f:
for l in f:
m = re.match(r'def +([a-zA-Z0-9][a-zA-Z0-9_]*)\(', l)
if m:
yield m.group(1)
with open('README.org', 'w') as f_target_org:
with open('README', 'w') as f_target:
f_target_org.write(r'''* TALK
I just gave a talk about this at [[https://www.socallinuxexpo.org/scale/18x][SCaLE 18x]]. Here are the [[https://www.youtube.com/watch?v=YOOapXNtUWw][video of the talk]] and
the [[https://github.com/dkogan/talk-numpysane-gnuplotlib/raw/master/numpysane-gnuplotlib.pdf]["slides"]].
''')
def write(s, verbatim):
r'''Writes the given string to README and README.org
if verbatim: we simply write the string, and call it good
Otherwise, we massage the string slightly for org:
- we look for indented blocks (signifying examples), and wrap them
in a #+BEGIN_SRC or #+BEGIN_EXAMPLE.
- we find links, and add markup to make them valid org links
'''
if verbatim:
f_target. write(s)
f_target_org.write(s)
return
# the non-org version is written as is
f_target.write(s)
# the org version neeeds massaging
f = f_target_org
in_quote = None # can be None or 'example' or 'src'
queued_blanks = 0
indent_size = 4
prev_indented = False
sio = StringIO(s)
for l in sio:
# if we have a figure made with DOCUMENTATION-PLOTS, place it
m = re.match(r'^ \[ (.*) \]$', l)
if m is not None:
tag = m.group(1)
tag = re.sub(r'[^a-zA-Z0-9_]+','-', tag)
plot_filename = f"{tag}.svg"
if os.path.isfile(plot_filename):
if in_quote is not None:
if in_quote == 'example': f.write('#+END_EXAMPLE\n')
else: f.write('#+END_SRC\n')
f.write(f"[[file:{plot_filename}]]\n")
if in_quote is not None:
if in_quote == 'example': f.write('#+BEGIN_EXAMPLE\n')
else: f.write('#+BEGIN_SRC python\n')
continue
# handle links
l = re.sub( r"([^ ]+) *\((https?://[^ ]+)\)",
r"[[\2][\1]]",
l)
if in_quote is None:
if len(l) <= 1:
# blank line
f.write(l)
continue
if not re.match(' '*indent_size, l):
# don't have full indent. not quote start
prev_indented = re.match(' ', l)
f.write(l)
continue
if re.match(' '*indent_size + '-', l):
# Start of indented list. not quote start
prev_indented = re.match(' ', l)
f.write(l)
continue
if prev_indented:
# prev line(s) were indented, so this can't start a quote
f.write(l)
continue
# start of quote. What kind?
if re.match(' >>>', l):
in_quote = 'example'
f.write('#+BEGIN_EXAMPLE\n')
else:
in_quote = 'src'
f.write('#+BEGIN_SRC python\n')
f.write(l[indent_size:])
continue
# we're in a quote. Skip blank lines for now
if len(l) <= 1:
queued_blanks = queued_blanks+1
continue
if re.match(' '*indent_size, l):
# still in quote. Write it out
f.write( '\n'*queued_blanks)
queued_blanks = 0
f.write(l[indent_size:])
continue
# not in quote anymore
if in_quote == 'example': f.write('#+END_EXAMPLE\n')
else: f.write('#+END_SRC\n')
f.write( '\n'*queued_blanks)
f.write(l)
queued_blanks = 0
in_quote = None
prev_indented = False
f.write('\n')
if in_quote == 'example': f.write('#+END_EXAMPLE\n')
elif in_quote == 'src': f.write('#+END_SRC\n')
header = '* NAME\n{}: '.format(modname)
write( header, verbatim=True )
write(inspect.getdoc(mod), verbatim=False)
write( '\n', verbatim=True )
# extract the global function docstrings. I'm doing that for the global
# functions, but not for the class or methods because the methods have
# very little of their own documentation
write('* GLOBAL FUNCTIONS\n', verbatim=True)
for func in dirmod():
if not inspect.isfunction(mod.__dict__[func]):
continue
doc = inspect.getdoc(mod.__dict__[func])
if doc:
write('** {}()\n'.format(func), verbatim=True)
write( doc, verbatim=False )
write( '\n', verbatim=True )
with open('README.footer.org', 'r') as f_footer:
write( f_footer.read(), verbatim=True )