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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36087 a592a061-630c-0410-9148-cb99ea01b6c8
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Richard Heck 2010-11-04 19:07:30 +00:00
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359
lib/lyx2lyx/lyx2lyx_tools.py Normal file
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# This file is part of lyx2lyx
# -*- coding: utf-8 -*-
# Copyright (C) 2010 The LyX team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
" This modules offer several free functions to help with lyx2lyx'ing. "
import string
from parser_tools import find_token
from unicode_symbols import unicode_reps
# Note that text can be either a list of lines or a single line.
def add_to_preamble(document, text):
""" Add text to the preamble if it is not already there.
Only the first line is checked!"""
if not type(text) is list:
# split on \n just in case
# it'll give us the one element list we want
# if there's no \n, too
text = text.split('\n')
if find_token(document.preamble, text[0], 0) != -1:
return
document.preamble.extend(text)
# Note that text can be either a list of lines or a single line.
# It should really be a list.
def insert_to_preamble(index, document, text):
""" Insert text to the preamble at a given line"""
if not type(text) is list:
# split on \n just in case
# it'll give us the one element list we want
# if there's no \n, too
text = text.split('\n')
document.preamble[index:index] = text
# This routine wraps some content in an ERT inset.
#
# NOTE: The function accepts either a single string or a LIST of strings as
# argument. But it returns a LIST of strings, split on \n, so that it does
# not have embedded newlines.
#
# This is how lyx2lyx represents a LyX document: as a list of strings,
# each representing a line of a LyX file. Embedded newlines confuse
# lyx2lyx very much.
#
# A call to this routine will often go something like this:
# i = find_token('\\begin_inset FunkyInset', ...)
# ...
# j = find_end_of_inset(document.body, i)
# content = ...extract content from insets
# # that could be as simple as:
# # content = lyx2latex(document[i:j + 1])
# ert = put_cmd_in_ert(content)
# document.body[i:j] = ert
# Now, before we continue, we need to reset i appropriately. Normally,
# this would be:
# i += len(ert)
# That puts us right after the ERT we just inserted.
#
def put_cmd_in_ert(arg):
ret = ["\\begin_inset ERT", "status collapsed", "\\begin_layout Plain Layout", ""]
# Despite the warnings just given, it will be faster for us to work
# with a single string internally. That way, we only go through the
# unicode_reps loop once.
if type(arg) is list:
s = "\n".join(arg)
else:
s = arg
for rep in unicode_reps:
s = s.replace(rep[1], rep[0].replace('\\\\', '\\'))
s = s.replace('\\', "\\backslash\n")
ret += s.splitlines()
ret += ["\\end_layout", "\\end_inset"]
return ret
def lyx2latex(document, lines):
'Convert some LyX stuff into corresponding LaTeX stuff, as best we can.'
# clean up multiline stuff
content = ""
ert_end = 0
note_end = 0
hspace = ""
for curline in range(len(lines)):
line = lines[curline]
if line.startswith("\\begin_inset Note Note"):
# We want to skip LyX notes, so remember where the inset ends
note_end = find_end_of_inset(lines, curline + 1)
continue
elif note_end >= curline:
# Skip LyX notes
continue
elif line.startswith("\\begin_inset ERT"):
# We don't want to replace things inside ERT, so figure out
# where the end of the inset is.
ert_end = find_end_of_inset(lines, curline + 1)
continue
elif line.startswith("\\begin_inset Formula"):
line = line[20:]
elif line.startswith("\\begin_inset Quotes"):
# For now, we do a very basic reversion. Someone who understands
# quotes is welcome to fix it up.
qtype = line[20:].strip()
# lang = qtype[0]
side = qtype[1]
dbls = qtype[2]
if side == "l":
if dbls == "d":
line = "``"
else:
line = "`"
else:
if dbls == "d":
line = "''"
else:
line = "'"
elif line.startswith("\\begin_inset space"):
line = line[18:].strip()
if line.startswith("\\hspace"):
# Account for both \hspace and \hspace*
hspace = line[:-2]
continue
elif line == "\\space{}":
line = "\\ "
elif line == "\\thinspace{}":
line = "\\,"
elif hspace != "":
# The LyX length is in line[8:], after the \length keyword
length = latex_length(line[8:])[1]
line = hspace + "{" + length + "}"
hspace = ""
elif line.isspace() or \
line.startswith("\\begin_layout") or \
line.startswith("\\end_layout") or \
line.startswith("\\begin_inset") or \
line.startswith("\\end_inset") or \
line.startswith("\\lang") or \
line.strip() == "status collapsed" or \
line.strip() == "status open":
#skip all that stuff
continue
# this needs to be added to the preamble because of cases like
# \textmu, \textbackslash, etc.
add_to_preamble(document, ['% added by lyx2lyx for converted index entries',
'\\@ifundefined{textmu}',
' {\\usepackage{textcomp}}{}'])
# a lossless reversion is not possible
# try at least to handle some common insets and settings
if ert_end >= curline:
line = line.replace(r'\backslash', '\\')
else:
# No need to add "{}" after single-nonletter macros
line = line.replace('&', '\\&')
line = line.replace('#', '\\#')
line = line.replace('^', '\\textasciicircum{}')
line = line.replace('%', '\\%')
line = line.replace('_', '\\_')
line = line.replace('$', '\\$')
# Do the LyX text --> LaTeX conversion
for rep in unicode_reps:
line = line.replace(rep[1], rep[0] + "{}")
line = line.replace(r'\backslash', r'\textbackslash{}')
line = line.replace(r'\series bold', r'\bfseries{}').replace(r'\series default', r'\mdseries{}')
line = line.replace(r'\shape italic', r'\itshape{}').replace(r'\shape smallcaps', r'\scshape{}')
line = line.replace(r'\shape slanted', r'\slshape{}').replace(r'\shape default', r'\upshape{}')
line = line.replace(r'\emph on', r'\em{}').replace(r'\emph default', r'\em{}')
line = line.replace(r'\noun on', r'\scshape{}').replace(r'\noun default', r'\upshape{}')
line = line.replace(r'\bar under', r'\underbar{').replace(r'\bar default', r'}')
line = line.replace(r'\family sans', r'\sffamily{}').replace(r'\family default', r'\normalfont{}')
line = line.replace(r'\family typewriter', r'\ttfamily{}').replace(r'\family roman', r'\rmfamily{}')
line = line.replace(r'\InsetSpace ', r'').replace(r'\SpecialChar ', r'')
content += line
return content
def latex_length(slen):
'''
Convert lengths to their LaTeX representation. Returns (bool, length),
where the bool tells us if it was a percentage, and the length is the
LaTeX representation.
'''
i = 0
percent = False
# the slen has the form
# ValueUnit+ValueUnit-ValueUnit or
# ValueUnit+-ValueUnit
# the + and - (glue lengths) are optional
# the + always precedes the -
# Convert relative lengths to LaTeX units
units = {"text%":"\\textwidth", "col%":"\\columnwidth",
"page%":"\\paperwidth", "line%":"\\linewidth",
"theight%":"\\textheight", "pheight%":"\\paperheight"}
for unit in units.keys():
i = slen.find(unit)
if i == -1:
continue
percent = True
minus = slen.rfind("-", 1, i)
plus = slen.rfind("+", 0, i)
latex_unit = units[unit]
if plus == -1 and minus == -1:
value = slen[:i]
value = str(float(value)/100)
end = slen[i + len(unit):]
slen = value + latex_unit + end
if plus > minus:
value = slen[plus + 1:i]
value = str(float(value)/100)
begin = slen[:plus + 1]
end = slen[i+len(unit):]
slen = begin + value + latex_unit + end
if plus < minus:
value = slen[minus + 1:i]
value = str(float(value)/100)
begin = slen[:minus + 1]
slen = begin + value + latex_unit
# replace + and -, but only if the - is not the first character
slen = slen[0] + slen[1:].replace("+", " plus ").replace("-", " minus ")
# handle the case where "+-1mm" was used, because LaTeX only understands
# "plus 1mm minus 1mm"
if slen.find("plus minus"):
lastvaluepos = slen.rfind(" ")
lastvalue = slen[lastvaluepos:]
slen = slen.replace(" ", lastvalue + " ")
return (percent, slen)
def revert_flex_inset(document, name, LaTeXname, position):
" Convert flex insets to TeX code "
i = position
while True:
i = find_token(document.body, '\\begin_inset Flex ' + name, i)
if i == -1:
return
z = find_end_of_inset(document.body, i)
if z == -1:
document.warning("Malformed LyX document: Can't find end of Flex " + name + " inset.")
return
# remove the \end_inset
document.body[z - 2:z + 1] = put_cmd_in_ert("}")
# we need to reset character layouts if necessary
j = find_token(document.body, '\\emph on', i, z)
k = find_token(document.body, '\\noun on', i, z)
l = find_token(document.body, '\\series', i, z)
m = find_token(document.body, '\\family', i, z)
n = find_token(document.body, '\\shape', i, z)
o = find_token(document.body, '\\color', i, z)
p = find_token(document.body, '\\size', i, z)
q = find_token(document.body, '\\bar under', i, z)
r = find_token(document.body, '\\uuline on', i, z)
s = find_token(document.body, '\\uwave on', i, z)
t = find_token(document.body, '\\strikeout on', i, z)
if j != -1:
document.body.insert(z - 2, "\\emph default")
if k != -1:
document.body.insert(z - 2, "\\noun default")
if l != -1:
document.body.insert(z - 2, "\\series default")
if m != -1:
document.body.insert(z - 2, "\\family default")
if n != -1:
document.body.insert(z - 2, "\\shape default")
if o != -1:
document.body.insert(z - 2, "\\color inherit")
if p != -1:
document.body.insert(z - 2, "\\size default")
if q != -1:
document.body.insert(z - 2, "\\bar default")
if r != -1:
document.body.insert(z - 2, "\\uuline default")
if s != -1:
document.body.insert(z - 2, "\\uwave default")
if t != -1:
document.body.insert(z - 2, "\\strikeout default")
document.body[i:i + 4] = put_cmd_in_ert(LaTeXname + "{")
i += 1
def revert_font_attrs(document, name, LaTeXname):
" Reverts font changes to TeX code "
i = 0
changed = False
while True:
i = find_token(document.body, name + ' on', i)
if i == -1:
return changed
j = find_token(document.body, name + ' default', i)
k = find_token(document.body, name + ' on', i + 1)
# if there is no default set, the style ends with the layout
# assure hereby that we found the correct layout end
if j != -1 and (j < k or k == -1):
document.body[j:j + 1] = put_cmd_in_ert("}")
else:
j = find_token(document.body, '\\end_layout', i)
document.body[j:j] = put_cmd_in_ert("}")
document.body[i:i + 1] = put_cmd_in_ert(LaTeXname + "{")
changed = True
i += 1
def revert_layout_command(document, name, LaTeXname, position):
" Reverts a command from a layout to TeX code "
i = position
while True:
i = find_token(document.body, '\\begin_layout ' + name, i)
if i == -1:
return
k = -1
# find the next layout
j = i + 1
while k == -1:
j = find_token(document.body, '\\begin_layout', j)
l = len(document.body)
# if nothing was found it was the last layout of the document
if j == -1:
document.body[l - 4:l - 4] = put_cmd_in_ert("}")
k = 0
# exclude plain layout because this can be TeX code or another inset
elif document.body[j] != '\\begin_layout Plain Layout':
document.body[j - 2:j - 2] = put_cmd_in_ert("}")
k = 0
else:
j += 1
document.body[i] = '\\begin_layout Standard'
document.body[i + 1:i + 1] = put_cmd_in_ert(LaTeXname + "{")
i += 1
def hex2ratio(s):
val = string.atoi(s, 16)
if val != 0:
val += 1
return str(val / 256.0)

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lib/lyx2lyx/unicode_symbols.py Normal file
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# This file is part of lyx2lyx
# -*- coding: utf-8 -*-
# Copyright (C) 2010 The LyX team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
" Import unicode_reps from this module for access to the unicode<->LaTeX mapping. "
import sys, os, re
def read_unicodesymbols():
" Read the unicodesymbols list of unicode characters and corresponding commands."
pathname = os.path.abspath(os.path.dirname(sys.argv[0]))
fp = open(os.path.join(pathname.strip('lyx2lyx'), 'unicodesymbols'))
spec_chars = []
# Two backslashes, followed by some non-word character, and then a character
# in brackets. The idea is to check for constructs like: \"{u}, which is how
# they are written in the unicodesymbols file; but they can also be written
# as: \"u or even \" u.
r = re.compile(r'\\\\(\W)\{(\w)\}')
for line in fp.readlines():
if line[0] != '#' and line.strip() != "":
line=line.replace(' "',' ') # remove all quotation marks with spaces before
line=line.replace('" ',' ') # remove all quotation marks with spaces after
line=line.replace(r'\"','"') # replace \" by " (for characters with diaeresis)
try:
[ucs4,command,dead] = line.split(None,2)
if command[0:1] != "\\":
continue
spec_chars.append([command, unichr(eval(ucs4))])
except:
continue
m = r.match(command)
if m != None:
command = "\\\\"
# If the character is a double-quote, then we need to escape it, too,
# since it is done that way in the LyX file.
if m.group(1) == "\"":
command += "\\"
commandbl = command
command += m.group(1) + m.group(2)
commandbl += m.group(1) + ' ' + m.group(2)
spec_chars.append([command, unichr(eval(ucs4))])
spec_chars.append([commandbl, unichr(eval(ucs4))])
fp.close()
return spec_chars
unicode_reps = read_unicodesymbols()