# This file is part of lyx2lyx
# -*- coding: utf-8 -*-
-# Copyright (C) 2010 The LyX team
+# Copyright (C) 2011 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
#
# 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.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
-" This modules offer several free functions to help with lyx2lyx'ing. "
+'''
+This modules offer several free functions to help with lyx2lyx'ing.
+More documentaton is below, but here is a quick guide to what
+they do. Optional arguments are marked by brackets.
+
+add_to_preamble(document, text):
+ Here, text can be either a single line or a list of lines. It
+ is bad practice to pass something with embedded newlines, but
+ we will handle that properly.
+ The routine checks to see whether the provided material is
+ already in the preamble. If not, it adds it.
+ Prepends a comment "% Added by lyx2lyx" to text.
+
+insert_to_preamble(document, text[, index]):
+ Here, text can be either a single line or a list of lines. It
+ is bad practice to pass something with embedded newlines, but
+ we will handle that properly.
+ The routine inserts text at document.preamble[index], where by
+ default index is 0, so the material is inserted at the beginning.
+ Prepends a comment "% Added by lyx2lyx" to text.
+
+put_cmd_in_ert(arg):
+ Here arg should be a list of strings (lines), which we want to
+ wrap in ERT. Returns a list of strings so wrapped.
+ 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 = lyx2latex(document[i:j + 1])
+ ert = put_cmd_in_ert(content)
+ document.body[i:j+1] = ert
+
+lyx2latex(document, lines):
+ Here, lines is a list of lines of LyX material we want to convert
+ to LaTeX. We do the best we can and return a string containing
+ the translated material.
+
+latex_length(slen):
+ Convert lengths (in LyX form) to their LaTeX representation. Returns
+ (bool, length), where the bool tells us if it was a percentage, and
+ the length is the LaTeX representation.
+
+'''
import string
-from parser_tools import find_token
+from parser_tools import find_token, find_end_of_inset
from unicode_symbols import unicode_reps
+
# This will accept either a list of lines or a single line.
-# But it is bad practice to pass something with embedded
-# newlines, though we will handle that.
+# It is bad practice to pass something with embedded newlines,
+# though we will handle that.
def add_to_preamble(document, text):
- """ Add text to the preamble if it is not already there.
- Only the first line is checked!"""
+ " Add text to the preamble if it is not already there. "
if not type(text) is list:
# split on \n just in case
# if there's no \n, too
text = text.split('\n')
- if find_token(document.preamble, text[0], 0) != -1:
+ i = 0
+ prelen = len(document.preamble)
+ while True:
+ i = find_token(document.preamble, text[0], i)
+ if i == -1:
+ break
+ # we need a perfect match
+ matched = True
+ for line in text:
+ if i >= prelen or line != document.preamble[i]:
+ matched = False
+ break
+ i += 1
+ if matched:
return
+ document.preamble.extend(["% Added by lyx2lyx"])
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):
+def insert_to_preamble(document, text, index = 0):
""" Insert text to the preamble at a given line"""
if not type(text) is list:
# it'll give us the one element list we want
# if there's no \n, too
text = text.split('\n')
-
+
+ text.insert(0, "% Added by lyx2lyx")
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.
+ '''
+ arg should be a list of lines we want to wrap in ERT.
+ Returns a list of strings, with the lines so wrapped.
+ '''
+
+ ret = ["\\begin_inset ERT", "status collapsed", "", "\\begin_layout Plain Layout", ""]
+ # 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 = s.replace(rep[1], rep[0].replace('\\\\', '\\'))
s = s.replace('\\', "\\backslash\n")
ret += s.splitlines()
- ret += ["\\end_layout", "\\end_inset"]
+ ret += ["\\end_layout", "", "\\end_inset"]
+ return ret
+
+
+def get_ert(lines, i):
+ 'Convert an ERT inset into LaTeX.'
+ if not lines[i].startswith("\\begin_inset ERT"):
+ return ""
+ j = find_end_of_inset(lines, i)
+ if j == -1:
+ return ""
+ while i < j and not lines[i].startswith("status"):
+ i = i + 1
+ i = i + 1
+ ret = ""
+ first = True
+ while i < j:
+ if lines[i] == "\\begin_layout Plain Layout":
+ if first:
+ first = False
+ else:
+ ret = ret + "\n"
+ while i + 1 < j and lines[i+1] == "":
+ i = i + 1
+ elif lines[i] == "\\end_layout":
+ while i + 1 < j and lines[i+1] == "":
+ i = i + 1
+ elif lines[i] == "\\backslash":
+ ret = ret + "\\"
+ else:
+ ret = ret + lines[i]
+ i = i + 1
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
return (percent, slen)
-def revert_flex_inset(document, name, LaTeXname, position):
+def revert_flex_inset(lines, name, LaTeXname):
" Convert flex insets to TeX code "
- i = position
+ i = 0
while True:
- i = find_token(document.body, '\\begin_inset Flex ' + name, i)
+ i = find_token(lines, '\\begin_inset Flex ' + name, i)
if i == -1:
return
- z = find_end_of_inset(document.body, i)
+ z = find_end_of_inset(lines, i)
if z == -1:
- document.warning("Malformed LyX document: Can't find end of Flex " + name + " inset.")
- return
+ document.warning("Can't find end of Flex " + name + " inset.")
+ i += 1
+ continue
# remove the \end_inset
- document.body[z - 2:z + 1] = put_cmd_in_ert("}")
+ lines[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)
+ j = find_token(lines, '\\emph on', i, z)
+ k = find_token(lines, '\\noun on', i, z)
+ l = find_token(lines, '\\series', i, z)
+ m = find_token(lines, '\\family', i, z)
+ n = find_token(lines, '\\shape', i, z)
+ o = find_token(lines, '\\color', i, z)
+ p = find_token(lines, '\\size', i, z)
+ q = find_token(lines, '\\bar under', i, z)
+ r = find_token(lines, '\\uuline on', i, z)
+ s = find_token(lines, '\\uwave on', i, z)
+ t = find_token(lines, '\\strikeout on', i, z)
if j != -1:
- document.body.insert(z - 2, "\\emph default")
+ lines.insert(z - 2, "\\emph default")
if k != -1:
- document.body.insert(z - 2, "\\noun default")
+ lines.insert(z - 2, "\\noun default")
if l != -1:
- document.body.insert(z - 2, "\\series default")
+ lines.insert(z - 2, "\\series default")
if m != -1:
- document.body.insert(z - 2, "\\family default")
+ lines.insert(z - 2, "\\family default")
if n != -1:
- document.body.insert(z - 2, "\\shape default")
+ lines.insert(z - 2, "\\shape default")
if o != -1:
- document.body.insert(z - 2, "\\color inherit")
+ lines.insert(z - 2, "\\color inherit")
if p != -1:
- document.body.insert(z - 2, "\\size default")
+ lines.insert(z - 2, "\\size default")
if q != -1:
- document.body.insert(z - 2, "\\bar default")
+ lines.insert(z - 2, "\\bar default")
if r != -1:
- document.body.insert(z - 2, "\\uuline default")
+ lines.insert(z - 2, "\\uuline default")
if s != -1:
- document.body.insert(z - 2, "\\uwave default")
+ lines.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 + "{")
+ lines.insert(z - 2, "\\strikeout default")
+ lines[i:i + 4] = put_cmd_in_ert(LaTeXname + "{")
i += 1
-def revert_font_attrs(document, name, LaTeXname):
+def revert_font_attrs(lines, name, LaTeXname):
" Reverts font changes to TeX code "
i = 0
changed = False
while True:
- i = find_token(document.body, name + ' on', i)
+ i = find_token(lines, 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)
+ j = find_token(lines, name + ' default', i)
+ k = find_token(lines, 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("}")
+ lines[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 + "{")
+ j = find_token(lines, '\\end_layout', i)
+ lines[j:j] = put_cmd_in_ert("}")
+ lines[i:i + 1] = put_cmd_in_ert(LaTeXname + "{")
changed = True
i += 1
-def revert_layout_command(document, name, LaTeXname, position):
+def revert_layout_command(lines, name, LaTeXname):
" Reverts a command from a layout to TeX code "
- i = position
+ i = 0
while True:
- i = find_token(document.body, '\\begin_layout ' + name, i)
+ i = find_token(lines, '\\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)
+ j = find_token(lines, '\\begin_layout', j)
+ l = len(lines)
# 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("}")
+ lines[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("}")
+ elif lines[j] != '\\begin_layout Plain Layout':
+ lines[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 + "{")
+ lines[i] = '\\begin_layout Standard'
+ lines[i + 1:i + 1] = put_cmd_in_ert(LaTeXname + "{")
i += 1
projects / lyx.git / blobdiff