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# This file is responsible for displaying code examples. It expects to see
# comments like #begin foo and #end foo a the start of lines. The code is
# then used to create example fragments.
#
# When we see:
#
# show example foo bar
#
# We concatenate fragements foo and bar, higlight them, wrap them into a
# viewport, button and transform, and display them to the user.
transform example_transform:
ypos 450 yanchor 1.0 xpos 0 xanchor 0
on replace:
crop (0, 0, 800, 120)
on show:
crop (0, 0, 800, 0)
linear .5 crop (0, 0, 800, 120)
on hide:
linear .5 crop (0, 0, 800, 0)
init python:
import re
import keywords
KEYWORDS = set(keywords.keywords)
PROPERTIES = set(keywords.properties)
KEYWORDS = [ re.escape(i) for i in keywords.keywords ]
PROPERTIES = [ re.escape(i) for i in keywords.properties ]
KWREGEX = r"|".join(KEYWORDS)
PRREGEX = r"|".join(PROPERTIES)
regex = r"(?P<word>\b(\$|\w+)\b)" + \
r"|(?P<string>\"([^\"]|\\.)*\")" + \
r"|(?P<comment>#.*)"
regex = re.compile(regex)
# This maps from example name to the text of the fragment.
examples = { }
class __Example(object):
"""
When parameterized, this displays an example window, containing
example text from blocks with those parameters.
"""
def colorize(self, m):
if m.group("string"):
return "{color=#060}" + m.group(0) + "{/color}"
word = m.group("word")
if word:
if word in KEYWORDS:
return "{color=#840}" + m.group(0) + "{/color}"
elif word in PROPERTIES:
return "{color=#048}" + m.group(0) + "{/color}"
else:
return m.group(0)
if m.group("comment"):
return "{color=#600}" + m.group(0) + "{/color}"
return m.group(0)
def predict(self, callback):
return
def _duplicate(self, args):
# Collect the examples we use.
lines1 = [ ]
for i in args.args:
if i not in examples:
raise Exception("Unknown example %r." % i)
lines1.extend(examples[i])
# Strip off doubled blank lines.
last_blank = False
lines = [ ]
for i in lines1:
if not i and last_blank:
continue
last_blank = not i
i = regex.sub(self.colorize, i)
lines.append(i)
# Join them into a single string.
code = "\n".join(lines) + "\n "
ct = Text(code, size=16, color="#000")
vp = Viewport(ct, child_size=(2000, 2000), ymaximum=120, draggable=True, mousewheel=True)
w = Window(vp,
background = "#fffc",
top_padding=0,
right_padding=0,
bottom_padding=0,
yminimum=0,
)
return example_transform(w)
image example = __Example()
init python hide:
import os.path
import re
# A list of files we will be scanning.
files = [ ]
for i in os.listdir(config.gamedir):
if i.endswith(".rpy"):
files.append(os.path.join(config.gamedir, i))
for fn in files:
f = file(fn, "r")
open_examples = set()
for l in f:
l = l.decode("utf-8")
l = l.rstrip()
m = re.match("\s*#begin (\w+)", l)
if m:
example = m.group(1)
if example in examples:
raise Exception("Example %r is defined in two places.", example)
open_examples.add(example)
examples[example] = [ ]
continue
m = re.match("\s*#end (\w+)", l)
if m:
example = m.group(1)
if example not in open_examples:
raise Exception("Example %r is not open.", example)
open_examples.remove(example)
continue
for i in open_examples:
examples[i].append(l)
if open_examples:
raise Exception("Examples %r remain open at the end of %r" % (open_examples, fn))
f.close()
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