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Towards bug http://www.lyx.org/trac/ticket/5676

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Python script for building LFUNs.lyx
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg151172.html

Patch by Ewan Davies


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@29698 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Pavel Sanda 2009-05-16 23:53:32 +00:00
parent 118bc4aa29
commit db4ef7df34
2 changed files with 351 additions and 0 deletions
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343
development/tools/gen_lfuns.py Executable file
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@ -0,0 +1,343 @@
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# file gen_lfuns.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# author Ewan Davies
# Full author contact details are available in file CREDITS
# Usage:
# gen_lfuns.py <path/to/LyXAction.cpp> <where/to/save/LFUNs.lyx>
import sys
import os.path
from datetime import date
def error(message):
sys.stderr.write(message + '\n')
sys.exit(1)
def usage(prog_name):
return "Usage: %s <path/to/LyXAction.cpp> <where/to/save/LFUNs.lyx>" % prog_name
DOXYGEN_START = "/*!"
DOXYGEN_END = "*/"
LYX_NEWLINE = "\n\\begin_inset Newline newline\n\\end_inset\n\n"
LYX_BACKSLASH = "\n\\backslash\n"
HTMLONLY_START = "\\htmlonly"
HTMLONLY_END = "\\endhtmlonly"
LFUN_NAME_ID = "\\var lyx::FuncCode lyx::"
LFUN_ACTION_ID = "\\li Action: "
LFUN_NOTION_ID = "\\li Notion: "
LFUN_SYNTAX_ID = "\\li Syntax: "
LFUN_PARAMS_ID = "\\li Params: "
LFUN_SAMPLE_ID = "\\li Sample: "
LFUN_ORIGIN_ID = "\\li Origin: "
LFUN_ENDVAR = "\\endvar"
ID_DICT = dict(name=LFUN_NAME_ID, action=LFUN_ACTION_ID, notion=LFUN_NOTION_ID,
syntax=LFUN_SYNTAX_ID, params=LFUN_PARAMS_ID, sample=LFUN_SAMPLE_ID, origin=LFUN_ORIGIN_ID)
LFUNS_HEADER = """# gen_lfuns.py generated this file. For more info see http://www.lyx.org/
\\lyxformat 345
\\begin_document
\\begin_header
\\textclass amsart
\\use_default_options false
\\begin_modules
theorems-ams
\\end_modules
\\language english
\\inputencoding auto
\\font_roman default
\\font_sans default
\\font_typewriter default
\\font_default_family default
\\font_sc false
\\font_osf false
\\font_sf_scale 100
\\font_tt_scale 100
\\graphics default
\\paperfontsize default
\\use_hyperref false
\\papersize default
\\use_geometry true
\\use_amsmath 1
\\use_esint 1
\\cite_engine basic
\\use_bibtopic false
\\paperorientation portrait
\\leftmargin 2.5cm
\\topmargin 2cm
\\rightmargin 3cm
\\bottommargin 1cm
\\secnumdepth 3
\\tocdepth 3
\\paragraph_separation indent
\\defskip medskip
\\quotes_language english
\\papercolumns 1
\\papersides 1
\\paperpagestyle default
\\tracking_changes false
\\output_changes false
\\author ""
\\author ""
\\end_header
\\begin_body
\\begin_layout Section*""" + "\nLFUNs documentation automatically generated " + str(date.today()) + """
\\end_layout
\\begin_layout Standard
\\begin_inset ERT
status collapsed
\\begin_layout Plain Layout
\\backslash
thispagestyle{empty}
\\end_layout
\\end_inset
\\begin_inset VSpace 1cm
\\end_inset
\\end_layout
"""
LFUNS_FOOTER = """\\end_body
\\end_document
"""
def parse_lfun(str):
"""Takes a comment block (str) and parses it for fields describing the LFUN. Returns a dict containing the fields."""
lfun = dict(name="", action="", notion="", syntax="", params="", sample="", origin="")
field = ""
lines = str.splitlines()
# strip leading whitespace and * from the lines of the comment to get
# rid of unimportant characters
for i in range(0, len(lines)):
lines[i] = lines[i].strip(" *")
for i in range(0, len(lines) - 1):
# work out what field is being read if none of these is found, the line will be added
# to the last field edited
# since the field identifier is not included skip it out if it's found, otherwise skip
# nothing as an existing field is being added to
# if a field id is found, then its the first line of the field so set the pre_space to ""
# so that the first line isn't prespaced
if lines[i].startswith(LFUN_NAME_ID):
field = "name"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_ACTION_ID):
field = "action"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_NOTION_ID):
field = "notion"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_SYNTAX_ID):
field = "syntax"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_PARAMS_ID):
field = "params"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_SAMPLE_ID):
field = "sample"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_ORIGIN_ID):
field = "origin"
pre_space = ""
skip = len(ID_DICT[field])
elif lines[i].startswith(LFUN_ENDVAR):
break
else:
skip = 0
# if a manual line break was found last line, don't prespace this line
if i > 1 and lines[i-1].endswith("\\n"):
pre_space = ""
else:
pre_space = " "
# add the line to the field, processing it for \ characters and \n
# which, if occurring at the end of a line, must become a LYX_NEWLINE
line = lines[i][skip:]
# deal with \htmlonly
# TODO: convert chars found in htmlonly to unicode
start = line.find(HTMLONLY_START)
if start > 0:
# if removing the htmlonly element leaves a double space, go back one to remove it
if line[start-1] == " ":
start = start - 1
end = line.find(HTMLONLY_END)
if end > start:
end = line.find(HTMLONLY_END) + len(HTMLONLY_END)
line = line[:start] + line[end:]
#else:
# TODO: if HTMLONLY_END is not found, look on the next line
# TODO: in the current LyXAction.cpp there are no htmlonly fields which go over a line break
# deal with \ but leave \n if at the end of the line
slash_idx = line.find("\\")
while slash_idx >= 0:
if slash_idx < len(line)-2 \
or slash_idx == len(line)-1:
# true when the \ is not the last or second last char
# or when the slash is the last char of the line
# slash must be interpreted literaly so swap it for a LYX_BACKSLASH
line = line[:slash_idx] + LYX_BACKSLASH + line[slash_idx+1:]
# skip the index ahead beyond the added text
slash_idx = slash_idx + len(LYX_BACKSLASH)
elif line[slash_idx+1] != "n": # only evaluated if the line ends "\x" where 'x' != 'n'
line = line[:slash_idx] + LYX_BACKSLASH + line[slash_idx+1:]
# skip the index ahead beyond the added text
slash_idx = slash_idx + len(LYX_BACKSLASH)
# look for the next \
slash_idx = line.find("\\", slash_idx+1)
# \n at the end of lines will not be processed by the above while loop
# so sort those out now
# sometime lines end " \n" so chop the space if its there
if line.endswith(" \\n"):
line = line[:len(line)-3] + LYX_NEWLINE
elif line.endswith("\\n"):
line = line[:len(line)-2] + LYX_NEWLINE
# any references to other LFUNs need the # removing
# TODO: actually insert a cross-reference here
line = line.replace("#LFUN", "LFUN")
# the first line might not have a field in it in which
# case the variable field won't have a value, so check
# to avoid an error
if field != "":
lfun[field] = lfun[field] + pre_space + line
# TODO: sort out chopping lines of more that 80 chars in length
return lfun
def write_fields(file, lfun):
"""Writes the LFUN contained in the dict lfun to the file. Does not write a the file header or footer"""
# add lfun to LFUNs.lyx
file.write("\\begin_layout Subsection*\n")
file.write(lfun["name"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["action"] != "":
file.write("\\begin_layout Description\n")
file.write("Action " + lfun["action"] + "\n")
#file.write("\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["notion"] != "":
file.write("\\begin_layout Description\n")
file.write("Notion " + lfun["notion"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["syntax"] != "":
file.write("\\begin_layout Description\n")
file.write("Syntax " + lfun["syntax"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["params"] != "":
file.write("\\begin_layout Description\n")
file.write("Params " + lfun["params"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["sample"] != "":
file.write("\\begin_layout Description\n")
file.write("Sample " + lfun["sample"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
if lfun["origin"] != "":
file.write("\\begin_layout Description\n")
file.write("Origin " + lfun["origin"] + "\n")
file.write("\\end_layout\n")
#file.write("\n")
file.write("\n")
def main(argv):
# parse command line arguments
script_path, script_name = os.path.split(argv[0])
if len(argv) != 3:
error(usage(script_name))
# input file
lyxaction_path = argv[1]
if not os.path.exists(lyxaction_path):
error(script_name + ": %s is not a valid path" % lyxaction_path, usage(argv[0]))
# output file
lfuns_path = argv[2]
if os.path.isdir(lfuns_path):
lfuns_path = lfuns_path + "LFUNs.lyx"
elif os.path.exists(lfuns_path):
error(script_name + ": %s already exists, delete it and rerun the script" % lfuns_path)
print(script_name + ": Start processing " + argv[1])
# Read the input file and write the output file
lyxaction_file = open(lyxaction_path, 'rb')
lfuns_file = open(lfuns_path, 'wb')
lyxaction_text = lyxaction_file.read()
# TODO: format a proper header for LFUNs.lyx
lfuns_file.write(LFUNS_HEADER)
# seek to the important bit of LyXAction.cpp
try:
start = lyxaction_text.index("ev_item const items[] = {")
except ValueError:
lyxaction_file.close()
lfuns_file.close()
error(script_name + ": LFUNs not found in " + lyxaction_file)
done = count = 0
while done == 0:
# look for a doxygen comment
start = lyxaction_text.find(DOXYGEN_START, start)
end = lyxaction_text.find(DOXYGEN_END, start) + len(DOXYGEN_END)
# parse the lfun if it is found
if start > 0:
count = count + 1
lfun = parse_lfun(lyxaction_text[start:end])
# write the lfun to the file
write_fields(lfuns_file, lfun)
# done adding current lfun to LFUNs.lyx so get the next one
start = end
else:
# if no more lfuns are found, EOF reached
done = 1
print(script_name + ": Created documentation for " + str(count) + " LFUNs")
# write the last part of LFUNs.lyx
lfuns_file.write(LFUNS_FOOTER)
lyxaction_file.close()
lfuns_file.close()
print(script_name + ": Finished")
if __name__ == "__main__":
main(sys.argv)

8
lib/generate_contributions.py
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@ -512,6 +512,14 @@ contributers = [
"22 February 2005",
u"Qt2 port"),
contributer(u"Ewan Davies",
"ewan.davies () googlemail ! com",
"GPL",
"Re: Starting Development",
"m=124248720628359",
"17 May 2009",
u"doxygen to LFUNs.lyx conversion"),
contributer(u"Anders Ekberg",
"anek () chalmers ! se",
"GPL",