LaTeX export now supports escaping, with a warning if it fails

nw/convert/file/latex.py

@@ -24,6 +24,7 @@ class LaTeXFile(TextFile):
     def __init__(self, theProject, theParent):
         TextFile.__init__(self, theProject, theParent)
         self.theConv = ToLaTeX(self.theProject, self.theParent)
+        self.texCodecFail = False
         return
 
     ##
@@ -50,6 +51,8 @@ class LaTeXFile(TextFile):
             self.outFile.write("\\end{document}\n")
             self.outFile.close()
 
+        self.texCodecFail = self.theConv.texCodecFail
+
         return True
 
 # END Class LaTeXFile

nw/convert/text/tolatex.py

@@ -10,7 +10,6 @@
 
 """
 
-import textwrap
 import logging
 import codecs
 import re
@@ -38,34 +37,6 @@ class ToLaTeX(Tokenizer):
             self.FMT_U_E : r"}",
         }
 
-        if self.wordWrap > 0:
-            tWrap = textwrap.TextWrapper(
-                width                = self.wordWrap,
-                initial_indent       = "",
-                subsequent_indent    = "",
-                expand_tabs          = True,
-                replace_whitespace   = True,
-                fix_sentence_endings = False,
-                break_long_words     = True,
-                drop_whitespace      = True,
-                break_on_hyphens     = True,
-                tabsize              = 8,
-                max_lines            = None
-            )
-            tComm = textwrap.TextWrapper(
-                width                = self.wordWrap-2,
-                initial_indent       = "",
-                subsequent_indent    = "",
-                expand_tabs          = True,
-                replace_whitespace   = True,
-                fix_sentence_endings = False,
-                break_long_words     = True,
-                drop_whitespace      = True,
-                break_on_hyphens     = True,
-                tabsize              = 8,
-                max_lines            = None
-            )
-
         self.theResult = ""
         thisPar = []
         for tType, tText, tFormat, tAlign in self.theTokens:
@@ -89,14 +60,6 @@ class ToLaTeX(Tokenizer):
 
             tLen = len(tText)
 
-            # The text can now be word wrapped, if we have requested this and it's needed.
-            if self.wordWrap > 0 and tLen > self.wordWrap:
-                if tType == self.T_COMMENT:
-                    aText = tComm.wrap(tText)
-                    tText = "\n% ".join(aText)
-                else:
-                    tText = tWrap.fill(tText)
-
             # Then the text can receive final formatting before we append it to the results.
             # We also store text lines in a buffer and merge them only when we find an empty line
             # indicating a new paragraph.
@@ -124,7 +87,7 @@ class ToLaTeX(Tokenizer):
 
             elif tType == self.T_SEP:
                 self.theResult += begText
-                self.theResult += "%s\n" % tText
+                self.theResult += "%s\n" % self._escapeUnicode(tText)
                 self.theResult += endText
 
             elif tType == self.T_TEXT:

nw/gui/export.py

@@ -32,7 +32,7 @@ from nw.convert.file.markdown import MarkdownFile
 from nw.convert.file.latex    import LaTeXFile
 from nw.convert.file.concat   import ConcatFile
 from nw.constants             import nwFiles
-from nw.enum                  import nwItemType
+from nw.enum                  import nwItemType, nwAlert
 
 logger = logging.getLogger(__name__)
 
@@ -167,11 +167,19 @@ class GuiExport(QDialog):
             nDone += 1
 
         outFile.closeFile()
-
         self.exportProgress.setValue(nDone)
         self.exportStatus.setText("Export to %s complete" % outFile.fileName)
         logger.verbose("Export to %s complete" % outFile.fileName)
 
+        if eFormat == GuiExportMain.FMT_TEX:
+            # Check that encoding was successful
+            if outFile.texCodecFail:
+                self.theParent.makeAlert((
+                    "Failed to escape unicode characters while writing LaTeX file. "
+                    "The genrated .tex file may not build properly. "
+                    "Make sure the python package 'latexcodec' is installed and working."
+                ), nwAlert.WARN)
+
         return
 
     def _doClose(self):