mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-04 05:09:53 +01:00
a862924601
On systems where the file system has excute permissions, this script was not marked as executable in a clean git checkout and so could be run without first changing the permissions. Fixed by setting the relevant git flag.
450 lines
14 KiB
Python
Executable File
450 lines
14 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
#
|
|
# updateDocumentToC.py
|
|
#
|
|
# Insert table of contents at top of Catch markdown documents.
|
|
#
|
|
# This script is distributed under the GNU General Public License v3.0
|
|
#
|
|
# It is based on markdown-toclify version 1.7.1 by Sebastian Raschka,
|
|
# https://github.com/rasbt/markdown-toclify
|
|
#
|
|
|
|
from __future__ import print_function
|
|
|
|
import argparse
|
|
import glob
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
from scriptCommon import catchPath
|
|
|
|
# Configuration:
|
|
|
|
minTocEntries = 4
|
|
|
|
headingExcludeDefault = [1,3,4,5] # use level 2 headers for at default
|
|
headingExcludeRelease = [1,3,4,5] # use level 1 headers for release-notes.md
|
|
|
|
documentsDefault = os.path.join(os.path.relpath(catchPath), 'docs/*.md')
|
|
releaseNotesName = 'release-notes.md'
|
|
|
|
contentTitle = '**Contents**'
|
|
contentLineNo = 4
|
|
contentLineNdx = contentLineNo - 1
|
|
|
|
# End configuration
|
|
|
|
VALIDS = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-&'
|
|
|
|
def readLines(in_file):
|
|
"""Returns a list of lines from a input markdown file."""
|
|
|
|
with open(in_file, 'r') as inf:
|
|
in_contents = inf.read().split('\n')
|
|
return in_contents
|
|
|
|
def removeLines(lines, remove=('[[back to top]', '<a class="mk-toclify"')):
|
|
"""Removes existing [back to top] links and <a id> tags."""
|
|
|
|
if not remove:
|
|
return lines[:]
|
|
|
|
out = []
|
|
for l in lines:
|
|
if l.startswith(remove):
|
|
continue
|
|
out.append(l)
|
|
return out
|
|
|
|
def removeToC(lines):
|
|
"""Removes existing table of contents starting at index contentLineNdx."""
|
|
if not lines[contentLineNdx ].startswith(contentTitle):
|
|
return lines[:]
|
|
|
|
result_top = lines[:contentLineNdx]
|
|
|
|
pos = contentLineNdx + 1
|
|
while lines[pos].startswith('['):
|
|
pos = pos + 1
|
|
|
|
result_bottom = lines[pos + 1:]
|
|
|
|
return result_top + result_bottom
|
|
|
|
def dashifyHeadline(line):
|
|
"""
|
|
Takes a header line from a Markdown document and
|
|
returns a tuple of the
|
|
'#'-stripped version of the head line,
|
|
a string version for <a id=''></a> anchor tags,
|
|
and the level of the headline as integer.
|
|
E.g.,
|
|
>>> dashifyHeadline('### some header lvl3')
|
|
('Some header lvl3', 'some-header-lvl3', 3)
|
|
|
|
"""
|
|
stripped_right = line.rstrip('#')
|
|
stripped_both = stripped_right.lstrip('#')
|
|
level = len(stripped_right) - len(stripped_both)
|
|
stripped_wspace = stripped_both.strip()
|
|
|
|
# GitHub's sluggification works in an interesting way
|
|
# 1) '+', '/', '(', ')' and so on are just removed
|
|
# 2) spaces are converted into '-' directly
|
|
# 3) multiple -- are not collapsed
|
|
|
|
dashified = ''
|
|
for c in stripped_wspace:
|
|
if c in VALIDS:
|
|
dashified += c.lower()
|
|
elif c.isspace():
|
|
dashified += '-'
|
|
else:
|
|
# Unknown symbols are just removed
|
|
continue
|
|
|
|
return [stripped_wspace, dashified, level]
|
|
|
|
def tagAndCollect(lines, id_tag=True, back_links=False, exclude_h=None):
|
|
"""
|
|
Gets headlines from the markdown document and creates anchor tags.
|
|
|
|
Keyword arguments:
|
|
lines: a list of sublists where every sublist
|
|
represents a line from a Markdown document.
|
|
id_tag: if true, creates inserts a the <a id> tags (not req. by GitHub)
|
|
back_links: if true, adds "back to top" links below each headline
|
|
exclude_h: header levels to exclude. E.g., [2, 3]
|
|
excludes level 2 and 3 headings.
|
|
|
|
Returns a tuple of 2 lists:
|
|
1st list:
|
|
A modified version of the input list where
|
|
<a id="some-header"></a> anchor tags where inserted
|
|
above the header lines (if github is False).
|
|
|
|
2nd list:
|
|
A list of 3-value sublists, where the first value
|
|
represents the heading, the second value the string
|
|
that was inserted assigned to the IDs in the anchor tags,
|
|
and the third value is an integer that represents the headline level.
|
|
E.g.,
|
|
[['some header lvl3', 'some-header-lvl3', 3], ...]
|
|
|
|
"""
|
|
out_contents = []
|
|
headlines = []
|
|
for l in lines:
|
|
saw_headline = False
|
|
|
|
orig_len = len(l)
|
|
l_stripped = l.lstrip()
|
|
|
|
if l_stripped.startswith(('# ', '## ', '### ', '#### ', '##### ', '###### ')):
|
|
|
|
# comply with new markdown standards
|
|
|
|
# not a headline if '#' not followed by whitespace '##no-header':
|
|
if not l.lstrip('#').startswith(' '):
|
|
continue
|
|
# not a headline if more than 6 '#':
|
|
if len(l) - len(l.lstrip('#')) > 6:
|
|
continue
|
|
# headers can be indented by at most 3 spaces:
|
|
if orig_len - len(l_stripped) > 3:
|
|
continue
|
|
|
|
# ignore empty headers
|
|
if not set(l) - {'#', ' '}:
|
|
continue
|
|
|
|
saw_headline = True
|
|
dashified = dashifyHeadline(l)
|
|
|
|
if not exclude_h or not dashified[-1] in exclude_h:
|
|
if id_tag:
|
|
id_tag = '<a class="mk-toclify" id="%s"></a>'\
|
|
% (dashified[1])
|
|
out_contents.append(id_tag)
|
|
headlines.append(dashified)
|
|
|
|
out_contents.append(l)
|
|
if back_links and saw_headline:
|
|
out_contents.append('[[back to top](#table-of-contents)]')
|
|
return out_contents, headlines
|
|
|
|
def positioningHeadlines(headlines):
|
|
"""
|
|
Strips unnecessary whitespaces/tabs if first header is not left-aligned
|
|
"""
|
|
left_just = False
|
|
for row in headlines:
|
|
if row[-1] == 1:
|
|
left_just = True
|
|
break
|
|
if not left_just:
|
|
for row in headlines:
|
|
row[-1] -= 1
|
|
return headlines
|
|
|
|
def createToc(headlines, hyperlink=True, top_link=False, no_toc_header=False):
|
|
"""
|
|
Creates the table of contents from the headline list
|
|
that was returned by the tagAndCollect function.
|
|
|
|
Keyword Arguments:
|
|
headlines: list of lists
|
|
e.g., ['Some header lvl3', 'some-header-lvl3', 3]
|
|
hyperlink: Creates hyperlinks in Markdown format if True,
|
|
e.g., '- [Some header lvl1](#some-header-lvl1)'
|
|
top_link: if True, add a id tag for linking the table
|
|
of contents itself (for the back-to-top-links)
|
|
no_toc_header: suppresses TOC header if True.
|
|
|
|
Returns a list of headlines for a table of contents
|
|
in Markdown format,
|
|
e.g., [' - [Some header lvl3](#some-header-lvl3)', ...]
|
|
|
|
"""
|
|
processed = []
|
|
if not no_toc_header:
|
|
if top_link:
|
|
processed.append('<a class="mk-toclify" id="table-of-contents"></a>\n')
|
|
processed.append(contentTitle + '<br>')
|
|
|
|
for line in headlines:
|
|
if hyperlink:
|
|
item = '[%s](#%s)' % (line[0], line[1])
|
|
else:
|
|
item = '%s- %s' % ((line[2]-1)*' ', line[0])
|
|
processed.append(item + '<br>')
|
|
processed.append('\n')
|
|
return processed
|
|
|
|
def buildMarkdown(toc_headlines, body, spacer=0, placeholder=None):
|
|
"""
|
|
Returns a string with the Markdown output contents incl.
|
|
the table of contents.
|
|
|
|
Keyword arguments:
|
|
toc_headlines: lines for the table of contents
|
|
as created by the createToc function.
|
|
body: contents of the Markdown file including
|
|
ID-anchor tags as returned by the
|
|
tagAndCollect function.
|
|
spacer: Adds vertical space after the table
|
|
of contents. Height in pixels.
|
|
placeholder: If a placeholder string is provided, the placeholder
|
|
will be replaced by the TOC instead of inserting the TOC at
|
|
the top of the document
|
|
|
|
"""
|
|
if spacer:
|
|
spacer_line = ['\n<div style="height:%spx;"></div>\n' % (spacer)]
|
|
toc_markdown = "\n".join(toc_headlines + spacer_line)
|
|
else:
|
|
toc_markdown = "\n".join(toc_headlines)
|
|
|
|
if placeholder:
|
|
body_markdown = "\n".join(body)
|
|
markdown = body_markdown.replace(placeholder, toc_markdown)
|
|
else:
|
|
body_markdown_p1 = "\n".join(body[:contentLineNdx ]) + '\n'
|
|
body_markdown_p2 = "\n".join(body[ contentLineNdx:])
|
|
markdown = body_markdown_p1 + toc_markdown + body_markdown_p2
|
|
|
|
return markdown
|
|
|
|
def outputMarkdown(markdown_cont, output_file):
|
|
"""
|
|
Writes to an output file if `outfile` is a valid path.
|
|
|
|
"""
|
|
if output_file:
|
|
with open(output_file, 'w') as out:
|
|
out.write(markdown_cont)
|
|
|
|
def markdownToclify(
|
|
input_file,
|
|
output_file=None,
|
|
min_toc_len=2,
|
|
github=False,
|
|
back_to_top=False,
|
|
nolink=False,
|
|
no_toc_header=False,
|
|
spacer=0,
|
|
placeholder=None,
|
|
exclude_h=None):
|
|
""" Function to add table of contents to markdown files.
|
|
|
|
Parameters
|
|
-----------
|
|
input_file: str
|
|
Path to the markdown input file.
|
|
|
|
output_file: str (default: None)
|
|
Path to the markdown output file.
|
|
|
|
min_toc_len: int (default: 2)
|
|
Miniumum number of entries to create a table of contents for.
|
|
|
|
github: bool (default: False)
|
|
Uses GitHub TOC syntax if True.
|
|
|
|
back_to_top: bool (default: False)
|
|
Inserts back-to-top links below headings if True.
|
|
|
|
nolink: bool (default: False)
|
|
Creates the table of contents without internal links if True.
|
|
|
|
no_toc_header: bool (default: False)
|
|
Suppresses the Table of Contents header if True
|
|
|
|
spacer: int (default: 0)
|
|
Inserts horizontal space (in pixels) after the table of contents.
|
|
|
|
placeholder: str (default: None)
|
|
Inserts the TOC at the placeholder string instead
|
|
of inserting the TOC at the top of the document.
|
|
|
|
exclude_h: list (default None)
|
|
Excludes header levels, e.g., if [2, 3], ignores header
|
|
levels 2 and 3 in the TOC.
|
|
|
|
Returns
|
|
-----------
|
|
changed: Boolean
|
|
True if the file has been updated, False otherwise.
|
|
|
|
"""
|
|
cleaned_contents = removeLines(
|
|
removeToC(readLines(input_file)),
|
|
remove=('[[back to top]', '<a class="mk-toclify"'))
|
|
|
|
processed_contents, raw_headlines = tagAndCollect(
|
|
cleaned_contents,
|
|
id_tag=not github,
|
|
back_links=back_to_top,
|
|
exclude_h=exclude_h)
|
|
|
|
# add table of contents?
|
|
if len(raw_headlines) < min_toc_len:
|
|
processed_headlines = []
|
|
else:
|
|
leftjustified_headlines = positioningHeadlines(raw_headlines)
|
|
|
|
processed_headlines = createToc(
|
|
leftjustified_headlines,
|
|
hyperlink=not nolink,
|
|
top_link=not nolink and not github,
|
|
no_toc_header=no_toc_header)
|
|
|
|
if nolink:
|
|
processed_contents = cleaned_contents
|
|
|
|
cont = buildMarkdown(
|
|
toc_headlines=processed_headlines,
|
|
body=processed_contents,
|
|
spacer=spacer,
|
|
placeholder=placeholder)
|
|
|
|
if output_file:
|
|
outputMarkdown(cont, output_file)
|
|
|
|
def isReleaseNotes(f):
|
|
return os.path.basename(f) == releaseNotesName
|
|
|
|
def excludeHeadingsFor(f):
|
|
return headingExcludeRelease if isReleaseNotes(f) else headingExcludeDefault
|
|
|
|
def updateSingleDocumentToC(input_file, min_toc_len, verbose=False):
|
|
"""Add or update table of contents in specified file. Return 1 if file changed, 0 otherwise."""
|
|
if verbose :
|
|
print( 'file: {}'.format(input_file))
|
|
|
|
output_file = input_file + '.tmp'
|
|
|
|
markdownToclify(
|
|
input_file=input_file,
|
|
output_file=output_file,
|
|
min_toc_len=min_toc_len,
|
|
github=True,
|
|
back_to_top=False,
|
|
nolink=False,
|
|
no_toc_header=False,
|
|
spacer=False,
|
|
placeholder=False,
|
|
exclude_h=excludeHeadingsFor(input_file))
|
|
|
|
# prevent race-condition (Python 3.3):
|
|
if sys.version_info >= (3, 3):
|
|
os.replace(output_file, input_file)
|
|
else:
|
|
os.remove(input_file)
|
|
os.rename(output_file, input_file)
|
|
|
|
return 1
|
|
|
|
def updateDocumentToC(paths, min_toc_len, verbose):
|
|
"""Add or update table of contents to specified paths. Return number of changed files"""
|
|
n = 0
|
|
for g in paths:
|
|
for f in glob.glob(g):
|
|
if os.path.isfile(f):
|
|
n = n + updateSingleDocumentToC(input_file=f, min_toc_len=min_toc_len, verbose=verbose)
|
|
return n
|
|
|
|
def updateDocumentToCMain():
|
|
"""Add or update table of contents to specified paths."""
|
|
|
|
parser = argparse.ArgumentParser(
|
|
description='Add or update table of contents in markdown documents.',
|
|
epilog="""""",
|
|
formatter_class=argparse.RawTextHelpFormatter)
|
|
|
|
parser.add_argument(
|
|
'Input',
|
|
metavar='file',
|
|
type=str,
|
|
nargs=argparse.REMAINDER,
|
|
help='files to process, at default: docs/*.md')
|
|
|
|
parser.add_argument(
|
|
'-v', '--verbose',
|
|
action='store_true',
|
|
help='report the name of the file being processed')
|
|
|
|
parser.add_argument(
|
|
'--min-toc-entries',
|
|
dest='minTocEntries',
|
|
default=minTocEntries,
|
|
type=int,
|
|
metavar='N',
|
|
help='the minimum number of entries to create a table of contents for [{default}]'.format(default=minTocEntries))
|
|
|
|
parser.add_argument(
|
|
'--remove-toc',
|
|
action='store_const',
|
|
dest='minTocEntries',
|
|
const=99,
|
|
help='remove all tables of contents')
|
|
|
|
args = parser.parse_args()
|
|
|
|
paths = args.Input if args.Input else [documentsDefault]
|
|
|
|
changedFiles = updateDocumentToC(paths=paths, min_toc_len=args.minTocEntries, verbose=args.verbose)
|
|
|
|
if changedFiles > 0:
|
|
print( "Processed table of contents in " + str(changedFiles) + " file(s)" )
|
|
else:
|
|
print( "No table of contents added or updated" )
|
|
|
|
if __name__ == '__main__':
|
|
updateDocumentToCMain()
|
|
|
|
# end of file
|