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#!/usr/bin/env python3
from pathlib import Path
import os
import re
import itertools
import argparse
class Line(object):
"""
Base class for a document line.
"""
def __init__(self, content):
self.content = content
def __str__(self):
return self.content
class CommentLine(Line):
"""
A line that was a comment in the source document.
It will be outputed as normal text.
"""
pass
class CodeLine(Line):
"""
A line that was source code in the source document.
It will be outputed as quoted code.
"""
pass
class Block(object):
"""
Base class for a block of lines. This class represents normal, unmodified text.
"""
def __init__(self):
self.lines = list()
def add_line(self, line):
"""
Add another line to the block.
`line` is supposed to be a `Line` object and has to be of the same type as the other lines
in this block.
"""
self.lines.append(line)
def __str__(self):
return "\n".join(map(str, self.lines))
class CodeBlock(Block):
"""
A block of code lines. It has additional features to export the lines as quoted code.
"""
def __init__(self, language):
self.language = language
self.lines = list()
def __str__(self):
return "\n```{}\n".format(self.language) + "\n".join(map(str, self.lines)) + "\n```\n"
class File(object):
def __init__(self, path, language=None):
self.path = path
# Determine the language of the source.
if language is None:
language = re.match(r".([^\n]*)", path.suffix).group(1)
# Read the raw lines fromt the input file.
with path.open("r") as input:
raw_lines = input.readlines()
# Retrieve an iterator over all line object.
lines = make_lines(raw_lines, language)
# Retrieve an iterator over all blocks.
self.blocks = list(lines_to_blocks(lines, language))
def __str__(self):
return "### {}\n\n".format(str(self.path)) + "\n".join(map(str, self.blocks))
class Chapter(object):
def __init__(self, intro_path, paths):
self.intro = "".join(open(intro_path, "r").readlines())
self.files = list()
for path in paths:
self.files.append(File(Path(path)))
def __str__(self):
return self.intro + "\n" + "\n".join(map(str, self.files))
def make_lines(raw_lines, language):
"""
Iterate through the raw lines and yield either a `CommentLine` or a `CodeLine`.
"""
# Depending on the language, other comment indicators are used.
if language == "rs":
comment_indicator_re = re.compile(r"\s*//\s*([^\n]*)")
else:
comment_indicator_re = re.compile(r"\s*#\s*([^\n]*)")
# A RE to clean a code line of the new-line character and to remove empty code lines.
clean_line_re = re.compile(r"([^\n]*)")
for line in raw_lines:
is_comment = comment_indicator_re.match(line)
if is_comment:
yield CommentLine(is_comment.group(1))
else:
cleaned_line = clean_line_re.match(line)
if cleaned_line is not None:
yield CodeLine(cleaned_line.group(1))
def lines_to_blocks(lines, language):
"""
Iterate through the lines and group them in blocks.
"""
last_block = None
for line in lines:
if last_block is None:
new_block = True
elif type(last_block.lines[-1]) != type(line):
yield last_block
new_block = True
else:
new_block = False
if new_block:
if type(line) == CodeLine:
last_block = CodeBlock(language)
else:
last_block = Block()
last_block.add_line(line)
yield last_block
def make():
try:
os.mkdir("chapter")
except FileExistsError:
pass
amp = Chapter("introductions/amp.md", [
"amp/eg-amp-rs.lv2/manifest.ttl",
"amp/eg-amp-rs.lv2/amp.ttl",
"amp/Cargo.toml",
"amp/src/lib.rs",
])
open("chapter/amp.md", "w").write(str(amp))
midigate = Chapter("introductions/midigate.md", [
"midigate/eg-midigate-rs.lv2/manifest.ttl",
"midigate/eg-midigate-rs.lv2/midigate.ttl",
"midigate/Cargo.toml",
"midigate/src/lib.rs"
])
open("chapter/midigate.md", "w").write(str(midigate))
fifths = Chapter("introductions/fifths.md", [
"fifths/eg-fifths-rs.lv2/manifest.ttl",
"fifths/eg-fifths-rs.lv2/fifths.ttl",
"fifths/Cargo.toml",
"fifths/src/lib.rs"
])
open("chapter/fifths.md", "w").write(str(fifths))
metro = Chapter("introductions/metro.md", [
"metro/eg-metro-rs.lv2/manifest.ttl",
"metro/eg-metro-rs.lv2/metro.ttl",
"metro/Cargo.toml",
"metro/src/pipes.rs",
"metro/src/lib.rs"
])
open("chapter/metro.md", "w").write(str(metro))
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