commit 1014c6b64d2283b6ab7129c5e9722e790d525def
Author: Guenter Milde <mi...@lyx.org>
Date: Tue Aug 29 21:52:31 2017 +0200
Update documentation about em/en dashes and bitmap fonts.
---
lib/RELEASE-NOTES | 22 +-
lib/doc/UserGuide.lyx | 1083 +++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 1077 insertions(+), 28 deletions(-)
diff --git a/lib/RELEASE-NOTES b/lib/RELEASE-NOTES
index 7801e72..936d58d 100644
--- a/lib/RELEASE-NOTES
+++ b/lib/RELEASE-NOTES
@@ -13,11 +13,13 @@
be safely dissolved, as it will be automatically inserted at export time
if needed, as usual.
-* LyX now outputs en- and em-dashes as -- and --- ligatures when exporting to
- latex using TeX fonts, as done in version 2.1 and earlier. In version 2.2
- they were instead output as the macros \textendash and \textemdash, causing
- changed output with old documents and bugs. The 2.2 behavior can be restored
- by don't allowing using dash ligatures in Document->Settings->Fonts.
+* The new setting
+ "Document->Settings->Fonts->Output em- and en-dash as ligatures" forces
+ output of en- and em-dashes as -- and --- when exporting to LaTeX.
+ It is is "true" by default but "false" when opening documents edited
+ with LyX 2.2.
+ See chapter 3.9.1.1 "Dashes and line breaks" of the User Guide and
+ "Caveats when upgrading from earlier versions to 2.3.x" below.
* The following UI translations were dropped, because the lack of translation
maintenance: Russian, Danish, Greek, Serbian, Galician, Catalan, Romanian,
@@ -202,6 +204,16 @@
the external_templates file, you will have to move the modifications to
the respective *.xtemplate file manually.
+* If you used literal em- and en-dashes in pre-2.2 documents,
+ you must manually unselect
+ "Document->Settings->Fonts->Output em- and en-dash as ligatures"
+ to ensure unchanged behaviour.
+
+* ZWSP characters (u200b) following literal em- and en-dashes are deleted by
+ lyx2lyx when converting to 2.3 format. If you used them as optional line
+ breaks after dashes, convert them to space insets before opening your
+ document with LyX 2.3 or the optional line breaks will be lost!
+
* If using TeX fonts and en- and em-dashes are output as font ligatures,
when exporting documents containing en- and em-dashes to the format of
LyX 2.0 or earlier, the following line has to be manually added to the
diff --git a/lib/doc/UserGuide.lyx b/lib/doc/UserGuide.lyx
index f13d52e..9a31c00 100644
--- a/lib/doc/UserGuide.lyx
+++ b/lib/doc/UserGuide.lyx
@@ -69,7 +69,7 @@ enumitem
\font_sf_scale 100 100
\font_tt_scale 100 100
\use_microtype false
-\use_dash_ligatures true
+\use_dash_ligatures false
\graphics default
\default_output_format pdf2
\output_sync 0
@@ -140,11 +140,12 @@ enumitem
\papercolumns 1
\papersides 2
\paperpagestyle default
-\tracking_changes false
+\tracking_changes true
\output_changes false
\html_math_output 0
\html_css_as_file 0
\html_be_strict true
+\author -1402925745 "Günter Milde"
\end_header
\begin_body
@@ -8336,12 +8337,14 @@ Verbatim
\end_layout
\begin_layout Verbatim
+
This is Verbatim.
\end_layout
\begin_layout Verbatim
\noindent
\align block
+
The following 2 lines are empty:
\end_layout
@@ -8354,6 +8357,7 @@ The following 2 lines are empty:
\end_layout
\begin_layout Verbatim
+
Almost everything is allowed in Verbatim:"%&$§#~'`
\backslash
}][{|
@@ -8377,6 +8381,7 @@ Verbatim
\end_layout
\begin_layout Verbatim*
+
This is Verbatim*.
\end_layout
@@ -12691,8 +12696,15 @@ status open
\series bold
Note:
\series default
- In practice, some fonts might fail due to bad metrics and other font
deficienci
-es; so you might have to experiment.
+ In practice, some fonts might fail due to
+\change_inserted -1402925745 1504687062
+a legacy (non Unicode) font encoding,
+\change_unchanged
+bad metrics
+\change_inserted -1402925745 1504687069
+,
+\change_unchanged
+ and other font deficiencies; so you might have to experiment.
\end_layout
\end_inset
@@ -12844,7 +12856,19 @@ Default
Default,
\family default
the font that is preset by the current document class is used.
- In most cases, this will be the standard \SpecialChar TeX
+
+\change_inserted -1402925745 1503765997
+With LyX's default font encoding
+\change_deleted -1402925745 1503766002
+In most cases
+\change_unchanged
+, this
+\change_inserted -1402925745 1503766035
+is a lookalike of
+\change_deleted -1402925745 1503766038
+will be
+\change_unchanged
+ the standard \SpecialChar TeX
font, known as
\begin_inset Quotes eld
\end_inset
@@ -12865,7 +12889,23 @@ Modern
\family typewriter
cm
\family default
-) or
+)
+\change_inserted -1402925745 1503766057
+: either
+\begin_inset Quotes eld
+\end_inset
+
+CM-Super
+\begin_inset Quotes erd
+\end_inset
+
+
+\change_unchanged
+ or
+\change_inserted -1402925745 1503766067
+the bitmap font
+\change_unchanged
+
\begin_inset Quotes eld
\end_inset
@@ -12881,25 +12921,72 @@ European Computer Modern
\family typewriter
ec
\family default
-), but some classes preset different default fonts.
+)
+\change_inserted -1402925745 1503766075
+.
+\change_deleted -1402925745 1503766073
+,
+\change_unchanged
+
+\change_deleted -1402925745 1503766086
+but
+\change_inserted -1402925745 1503766132
+However,
+\change_unchanged
+ some classes
+\change_deleted -1402925745 1503766097
+pre
+\change_unchanged
+set different default fonts.
\end_layout
\begin_layout Standard
As
+\change_deleted -1402925745 1503766148
+
\family typewriter
cm
\family default
- and
+ and
+\change_unchanged
+
\family typewriter
ec
\family default
- are bitmap fonts, they often look pixelated in PDF output, especially when
- you read the PDF in a zoomed size.
+
+\change_inserted -1402925745 1503766179
+is
+\change_unchanged
+a
+\change_deleted -1402925745 1503766171
+re
+\change_unchanged
+ bitmap font
+\change_deleted -1402925745 1503766192
+s
+\change_unchanged
+,
+\change_deleted -1402925745 1503766205
+they often
+\change_inserted -1402925745 1503766207
+it
+\change_unchanged
+ look
+\change_inserted -1402925745 1503766208
+s
+\change_unchanged
+ pixelated in PDF output, especially when you read the PDF in a zoomed size.
\begin_inset Foot
status collapsed
\begin_layout Plain Layout
-This problem does not appear if you read PDFs in
+This problem
+\change_deleted -1402925745 1503766226
+does not appear
+\change_inserted -1402925745 1503766228
+is less severe
+\change_unchanged
+ if you read PDFs in
\family typewriter
Adobe
\begin_inset space ~
@@ -12928,12 +13015,22 @@ Modern
\family default
fonts, which is the recommended choice if you want to keep the look of
+\change_inserted -1402925745 1503766401
+
\family typewriter
+Computer
+\begin_inset space ~
+\end_inset
+
+Modern
+\change_deleted -1402925745 1503766382
cm
\family default
/
\family typewriter
ec
+\change_unchanged
+
\family default
.
@@ -12974,9 +13071,13 @@ One difference is improved kerning.
\end_inset
+\change_deleted -1402925745 1503766263
+
\end_layout
\begin_layout Itemize
+
+\change_deleted -1402925745 1503766263
or select the
\family sans
AE
@@ -13127,6 +13228,8 @@ rève
\end_inset
.
+\change_unchanged
+
\end_layout
\begin_layout Itemize
@@ -16233,7 +16336,13 @@ In \SpecialChar LyX
\begin_inset Quotes erd
\end_inset
- character comes in four lengths: the
+ character comes in four
+\change_inserted -1402925745 1504705237
+variants
+\change_deleted -1402925745 1504687253
+lengths
+\change_unchanged
+: the
\emph on
hyphen
\emph default
@@ -16245,7 +16354,11 @@ en dash
\emph on
em dash
\emph default
-, and the minus sign:
+, and the
+\emph on
+minus sign
+\emph default
+:
\begin_inset VSpace defskip
\end_inset
@@ -16253,14 +16366,16 @@ em dash
\end_layout
\begin_layout Standard
+
+\change_deleted -1402925745 1504705830
\begin_inset Tabular
<lyxtabular version="3" rows="5" columns="3">
<features tabularvalignment="middle">
-<column alignment="left" valignment="top">
+<column alignment="left" valignment="top" width="0pt">
<column alignment="left" valignment="top">
<column alignment="left" valignment="top">
<row interlinespace="3mm">
-<cell alignment="center" valignment="top" bottomline="true" usebox="none">
+<cell alignment="left" valignment="top" bottomline="true" usebox="none">
\begin_inset Text
\begin_layout Plain Layout
@@ -16289,7 +16404,7 @@ inserted with
</cell>
</row>
<row interlinespace="3mm">
-<cell alignment="center" valignment="top" usebox="none">
+<cell alignment="left" valignment="top" usebox="none">
\begin_inset Text
\begin_layout Plain Layout
@@ -16329,7 +16444,7 @@ hyphen
</cell>
</row>
<row interlinespace="3mm">
-<cell alignment="center" valignment="top" usebox="none">
+<cell alignment="left" valignment="top" usebox="none">
\begin_inset Text
\begin_layout Plain Layout
@@ -16352,7 +16467,19 @@ en dash
\begin_layout Plain Layout
+\change_inserted -1402925745 1504246984
+system-wide key combination or
+\begin_inset Quotes eld
+\end_inset
+
+--
+\begin_inset Quotes erd
+\end_inset
+
+ in tex
\family sans
+t
+\change_deleted -1402925745 1503767710
Insert\SpecialChar menuseparator
Special
\begin_inset space ~
@@ -16360,13 +16487,15 @@ Special
Character\SpecialChar menuseparator
Symbols
+\change_unchanged
+
\end_layout
\end_inset
</cell>
</row>
<row interlinespace="3mm">
-<cell alignment="center" valignment="top" usebox="none">
+<cell alignment="left" valignment="top" usebox="none">
\begin_inset Text
\begin_layout Plain Layout
@@ -16389,7 +16518,19 @@ em dash
\begin_layout Plain Layout
+\change_inserted -1402925745 1504246993
+system-wide key combination or
+\begin_inset Quotes eld
+\end_inset
+
+---
+\begin_inset Quotes erd
+\end_inset
+
+ in tex
\family sans
+t
+\change_deleted -1402925745 1503767719
Insert\SpecialChar menuseparator
Special
\begin_inset space ~
@@ -16397,16 +16538,341 @@ Special
Character\SpecialChar menuseparator
Symbols
+\change_unchanged
+
\end_layout
\end_inset
</cell>
</row>
<row>
+<cell alignment="left" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+minus sign
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+\begin_inset Formula $-$
+\end_inset
+
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+\begin_inset Quotes eld
+\end_inset
+
+
+\family typewriter
+-
+\family default
+
+\begin_inset Quotes erd
+\end_inset
+
+ in math mode
+\end_layout
+
+\end_inset
+</cell>
+</row>
+</lyxtabular>
+
+\end_inset
+
+
+\change_inserted -1402925745 1504705830
+
+\begin_inset Box Frameless
+position "t"
+hor_pos "c"
+has_inner_box 1
+inner_pos "t"
+use_parbox 0
+use_makebox 0
+width "100col%"
+special "none"
+height "1in"
+height_special "totalheight"
+thickness "0.4pt"
+separation "3pt"
+shadowsize "4pt"
+framecolor "black"
+backgroundcolor "none"
+status open
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+\begin_inset Tabular
+<lyxtabular version="3" rows="5" columns="3">
+<features tabularvalignment="middle">
+<column alignment="left" valignment="top" width="0pt">
+<column alignment="left" valignment="top">
+<column alignment="left" valignment="top">
+<row interlinespace="3mm">
+<cell alignment="left" valignment="top" bottomline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+name
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" bottomline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+output
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" bottomline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+inserted with
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row interlinespace="3mm">
+<cell alignment="left" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+hyphen
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+-
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+\begin_inset Quotes eld
+\end_inset
+
+
+\family typewriter
+-
+\family default
+
+\begin_inset Quotes erd
+\end_inset
+
+ in text
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row interlinespace="3mm">
+<cell alignment="left" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+en dash
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+–
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504707530
+system key combination
+\begin_inset Foot
+status open
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504706094
+On Mac and Linux, the en dash is entered with
+\family sans
+Option-hyphen
+\family default
+ and the em dash with
+\family sans
+Shift-Option-hyphen
+\family default
+ (
+\family sans
+Option
+\family default
+ is the Mac label for the right
+\family sans
+Alt
+\family default
+
+\family sans
+/ AltGr
+\family default
+key).
+ Alternatively, dashes can be inserted with
+\family sans
+Insert\SpecialChar menuseparator
+Special
+\begin_inset space ~
+\end_inset
+
+Character\SpecialChar menuseparator
+Symbols
+\family default
+ or with the
+\begin_inset Quotes eld
+\end_inset
+
+unicode-insert
+\begin_inset Quotes erd
+\end_inset
+
+ \SpecialChar LyX
+ function with the Unicode code point as argument (2013 for the em dash
+ and 2014 for the en dash).
+ The function can also be bound to a key combination in Tools
+\family sans
+\SpecialChar menuseparator
+
+\family default
+Preferences
+\family sans
+\SpecialChar menuseparator
+
+\family default
+Editing
+\family sans
+\SpecialChar menuseparator
+
+\family default
+Shortcuts.
+\change_unchanged
+
+\end_layout
+
+\end_inset
+
+ or
+\begin_inset Quotes eld
+\end_inset
+
+--
+\begin_inset Quotes erd
+\end_inset
+
+ in tex
+\family sans
+t
+\change_unchanged
+
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row interlinespace="3mm">
+<cell alignment="left" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+em dash
+\end_layout
+
+\end_inset
+</cell>
<cell alignment="center" valignment="top" usebox="none">
\begin_inset Text
\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
+—
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504707540
+system key combination or
+\begin_inset Quotes eld
+\end_inset
+
+---
+\begin_inset Quotes erd
+\end_inset
+
+ in tex
+\family sans
+t
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="left" valignment="top" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
minus sign
\end_layout
@@ -16416,6 +16882,8 @@ minus sign
\begin_inset Text
\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
\begin_inset Formula $-$
\end_inset
@@ -16428,6 +16896,8 @@ minus sign
\begin_inset Text
\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504705830
\begin_inset Quotes eld
\end_inset
@@ -16450,6 +16920,15 @@ minus sign
\end_inset
+\change_unchanged
+
+\end_layout
+
+\end_inset
+
+
+\change_unchanged
+
\begin_inset VSpace defskip
\end_inset
@@ -16457,6 +16936,8 @@ minus sign
\end_layout
\begin_layout Standard
+
+\change_deleted -1402925745 1503767103
You can alternatively generate the en and em dash by inserting the
\begin_inset Quotes eld
\end_inset
@@ -16502,11 +16983,21 @@ You can alternatively generate the en and em dash by
inserting the
\end_inset
a em dash.
+\change_unchanged
+
\end_layout
\begin_layout Standard
-The three dash types are distinct from the minus sign, which appears in
- math mode and has a length of its own.
+
+\change_deleted -1402925745 1504539178
+The
+\change_inserted -1402925745 1504539175
+Hyphen and dashes
+\change_deleted -1402925745 1504539069
+three dash types
+\change_unchanged
+ are distinct from the minus sign, which appears in math mode and has a
+ length of its own.
Here are some examples:
\end_layout
@@ -16524,6 +17015,10 @@ hyphen
\begin_layout Enumerate
From A–Z
+\change_inserted -1402925745 1503767510
+; pages 369–378
+\change_unchanged
+
\begin_inset space \hfill{}
\end_inset
@@ -16532,10 +17027,42 @@ From A–Z
en dash
\emph default
)
+\change_inserted -1402925745 1504682326
+
\end_layout
\begin_layout Enumerate
-Oh — there's a dash.
+
+\change_inserted -1402925745 1504708446
+Dashes indicate interruptions, performing a function related to – but subtly
+ different from – parentheses.
+\begin_inset space \hfill{}
+\end_inset
+
+(
+\emph on
+en dash
+\emph default
+)
+\change_unchanged
+
+\end_layout
+
+\begin_deeper
+\begin_layout Standard
+
+\change_inserted -1402925745 1504708469
+The em dash is used without spaces:
+\change_unchanged
+Oh
+\change_deleted -1402925745 1504708486
+
+\change_unchanged
+—
+\change_deleted -1402925745 1504708486
+
+\change_unchanged
+there's a dash.
\begin_inset space \hfill{}
\end_inset
@@ -16544,8 +17071,11 @@ Oh — there's a dash.
em dash
\emph default
)
+\change_inserted -1402925745 1504679045
+
\end_layout
+\end_deeper
\begin_layout Enumerate
\begin_inset Formula $x^{2}-y^{2}=z^{2}$
\end_inset
@@ -16559,8 +17089,473 @@ em dash
minus sign
\emph default
)
+\change_inserted -1402925745 1503937275
+
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504710179
+See also the
+\begin_inset CommandInset href
+LatexCommand href
+name "Wikipedia entry on dashes"
+target "https://en.wikipedia.org/wiki/Dash";
+literal "false"
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Subsubsection
+
+\change_inserted -1402925745 1503938327
+Dashes and line breaks
+\begin_inset CommandInset label
+LatexCommand label
+name "subsec:Dashes-and-line-breaks"
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504686237
+Whether line breaks before or after dashes are allowed depends on the use
+ case and locale:
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504302249
+No line breaks are allowed in ranges of values like A–Z or 1975–1982.
+\change_unchanged
+
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504537660
+In English, lines may break after dashes used to set off parenthetical
statement
+s.
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504678633
+In French and Spanish, dashes around parenthetical statements are treated
+ similar to quote signs and line breaks are not allowed on the
+\begin_inset Quotes eld
+\end_inset
+
+inner side
+\begin_inset Quotes erd
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504711768
+When using spaced en dashes
+\begin_inset space ~
+\end_inset
+
+- common in British English
+\begin_inset space ~
+\end_inset
+
+- prevent line breaks before the dash with protected spaces.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504686608
+When using em dashes without spaces—\SpecialChar allowbreak
+common in American English—\SpecialChar allowbreak
+insert optional
+ line breaks with
+\family sans
+Insert\SpecialChar menuseparator
+Formatting\SpecialChar menuseparator
+Optional line break
+\family default
+.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504708653
+For documents containing many em dashes, you may consider to select
+\family sans
+Document\SpecialChar menuseparator
+Settings\SpecialChar menuseparator
+Fonts\SpecialChar menuseparator
+Output en- and em-dashes as ligatures.
+
+\family default
+This forces output of dashes as
+\begin_inset Quotes eld
+\end_inset
+
+--
+\begin_inset Quotes erd
+\end_inset
+
+ and
+\begin_inset Quotes eld
+\end_inset
+
+---
+\begin_inset Quotes erd
+\end_inset
+
+ when exporting to LaTeX.
+ The TeX font ligature mechanism convertes them to dash characters followed
+ by an optional line break.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504003320
+Caveats:
+\change_unchanged
+
+\end_layout
+
+\begin_layout Enumerate
+
+\change_inserted -1402925745 1504686268
+This results in optional line breaks after
+\series bold
+all
+\series default
+ en and em dashes.
+ Incorrect line breaks must be prevented by wrapping in a makebox or preceding
+ with
+\family typewriter
+
+\backslash
+nobreakdash
+\family default
+ in ERT:
+\end_layout
+
+\begin_deeper
+\begin_layout Quote
+
+\change_inserted -1402925745 1504539888
+pages
+\begin_inset Box Frameless
+position "t"
+hor_pos "c"
+has_inner_box 1
+inner_pos "t"
+use_parbox 0
+use_makebox 1
+width ""
+special "none"
+height "1in"
+height_special "totalheight"
+thickness "0.4pt"
+separation "3pt"
+shadowsize "4pt"
+framecolor "black"
+backgroundcolor "none"
+status open
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504013627
+369–378
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_deeper
+\begin_layout Standard
+
+\change_inserted -1402925745 1504539962
+Les incises
+\begin_inset Box Frameless
+position "t"
+hor_pos "c"
+has_inner_box 1
+inner_pos "t"
+use_parbox 0
+use_makebox 1
+width ""
+special "none"
+height "1in"
+height_special "totalheight"
+thickness "0.4pt"
+separation "3pt"
+shadowsize "4pt"
+framecolor "black"
+backgroundcolor "none"
+status open
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504539973
+–
+\begin_inset space ~
+\end_inset
+
+même
+\end_layout
+
+\end_inset
+
+ si tout le monde ne les aime pas
+\begin_inset space ~
+\end_inset
+
+– sont très utiles.
\end_layout
+\end_deeper
+\begin_layout Quote
+
+\change_inserted -1402925745 1504686902
+En una frase
+\begin_inset ERT
+status collapsed
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504246896
+
+
+\backslash
+nobreakdash
+\change_unchanged
+
+\end_layout
+
+\end_inset
+
+—un inciso con rayas— se escribe así.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504708818
+An incorrect line break is easily overlooked because
+\begin_inset space ~
+\end_inset
+
+– in contrast to an overfull line
+\begin_inset space ~
+\end_inset
+
+– it does not trigger a warning in the LaTeX log.
+\end_layout
+
+\end_deeper
+\begin_layout Enumerate
+
+\change_inserted -1402925745 1504012609
+The setting is ignored for documents using non-TeX fonts.
+\end_layout
+
+\begin_deeper
+\begin_layout Standard
+
+\change_inserted -1402925745 1504709863
+XeTeX provides the
+\family typewriter
+
+\backslash
+XeTeXdashbreakstate
+\family default
+ setting.
+ The default,
+\begin_inset Newline newline
+\end_inset
+
+
+\family typewriter
+
+\backslash
+XeTeXdashbreakstate=1
+\family default
+, causes literal dashes to behave like
+\begin_inset Quotes eld
+\end_inset
+
+ligature dashes
+\begin_inset Quotes erd
+\end_inset
+
+.
+\change_unchanged
+
+\end_layout
+
+\end_deeper
+\begin_layout Enumerate
+
+\change_inserted -1402925745 1504686210
+Em dashes in
+\family typewriter
+typewriter fonts
+\family default
+ become
+\family typewriter
+–-
+\family default
+ or
+\family typewriter
+---
+\family default
+ in the output.
+\change_unchanged
+
+\end_layout
+
+\begin_layout Enumerate
+
+\change_inserted -1402925745 1504003612
+Hyphenation is suppressed in words adjacent to hyphens and
+\begin_inset Quotes eld
+\end_inset
+
+ligature dashes
+\begin_inset Quotes erd
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard
+
+\change_inserted -1402925745 1504709020
+Changes:
+\end_layout
+
+\begin_layout Labeling
+\labelwidthstring 00.00.0000
+
+\change_inserted -1402925745 1504711065
+LyX
+\begin_inset space ~
+\end_inset
+
+2.2 -- and --- in the LyX source are output as -{}- and -{}-{}- to prevent
+ ligation to dashes.
+\begin_inset Foot
+status collapsed
+
+\begin_layout Plain Layout
+
+\change_inserted -1402925745 1504711038
+Up to LyX
+\begin_inset space ~
+\end_inset
+
+2.1, -- and --- in the LyX source was output
+\begin_inset Quotes eld
+\end_inset
+
+as is
+\begin_inset Quotes erd
+\end_inset
+
+ which led to different look in the GUI, text, or HTML vs.
+ documents compiled with LaTeX.
+
+\change_unchanged
+
+\end_layout
+
+\end_inset
+
+ Occurences in older documents are converted to literal Unicode dashes [
+\begin_inset CommandInset href
+LatexCommand href
+name "changeset 8aa37c43"
+target "http://www.lyx.org/trac/changeset/8aa37c43/lyxgit";
+literal "false"
+
+\end_inset
+
+].
+\end_layout
+
+\begin_deeper
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504709468
+In some cases this leads to different line breaks.
+
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504710005
+It is no longer possible to differentiate dashes with/without optional line
+ break using --- and -- vs.
+ literal dashes.
+ Either convert one sort to ERT or insert optional line break characters.
+\change_unchanged
+
+\end_layout
+
+\end_deeper
+\begin_layout Labeling
+\labelwidthstring 00.00.0000
+
+\change_inserted -1402925745 1504710385
+LyX
+\begin_inset space ~
+\end_inset
+
+2.3 New setting
+\family sans
+Document\SpecialChar menuseparator
+Settings\SpecialChar menuseparator
+Fonts\SpecialChar menuseparator
+Output en- and em-dashes as ligatures.
+
+\family default
+ It is on by default but unselected when opening documents edited with LyX 2.2.
+
+\end_layout
+
+\begin_deeper
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504712456
+If you used literal em- and en dashes in pre-2.2 documents, you must manually
+ unselect it to ensure unchanged behaviour.
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504712456
+ZWSP characters (u200b) following literal em- and en-dashes are deleted
+ by lyx2lyx when converting to 2.3 format.
+ If you used them as optional line breaks after dashes, convert them to
+ space insets before opening your document with LyX 2.3 or the optional line
+ breaks will be lost!
+\end_layout
+
+\begin_layout Itemize
+
+\change_inserted -1402925745 1504709574
+As with all settings, the default for new documents can be configured via
+ templates.
+\end_layout
+
+\end_deeper
\begin_layout Subsection
Hyphenation
\begin_inset Index idx
@@ -16661,8 +17656,17 @@ A-b c
as a hyphenation possibility.
Hyphenating at this point would look ugly.
- To prevent the shortcut from being hyphenated, you can put it into a makebox
- as described in section
+ To prevent the shortcut from being hyphenated, you can
+\change_inserted -1402925745 1504001674
+ use a protected hyphen (
+\family sans
+Insert\SpecialChar menuseparator
+Formatting\SpecialChar menuseparator
+Protected Hyphen
+\family default
+) or
+\change_unchanged
+ put it into a makebox as described in section
\emph on
Prevent Hyphenation
\emph default
@@ -38381,6 +39385,39 @@ reference "subsec:Ligatures"
\end_inset
.
+\change_inserted -1402925745 1503938048
+
+\end_layout
+
+\begin_layout Description
+
+\change_inserted -1402925745 1503938353
+Optional
+\begin_inset space ~
+\end_inset
+
+Line
+\begin_inset space ~
+\end_inset
+
+Break Inserts a line break point (ZWSP) that is invisible in the output.
+ See section
+\begin_inset space ~
+\end_inset
+
+
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "subsec:Dashes-and-line-breaks"
+plural "false"
+caps "false"
+noprefix "false"
+
+\end_inset
+
+ for a usage example.
+\change_unchanged
+
\end_layout
\begin_layout Description
