partial update of text, fixes doc build

[lilypond.git] / Documentation / user / text.itely

@c -*- coding: utf-8; mode: texinfo; -*-
@ignore
    Translation of GIT committish: FILL-IN-HEAD-COMMITTISH

    When revising a translation, copy the HEAD committish of the
    version that you are working on.  See TRANSLATION for details.
@end ignore

@c \version "2.11.38"

@node Text
@section Text

@lilypondfile[quote]{text-headword.ly}

This section explains how to include text (with various
formatting) in music scores.

@noindent
Some text elements that are not dealt with here are discussed in other
specific sections: @ref{Vocal music}, @ref{Titles and headers}.


@cindex Text, other languages
@warning{To write accented and special text (such as characters
from other languages), simply insert the characters directly into
the LilyPond file.  The file must be saved as UTF-8.  For more
information, see @ref{Text encoding}.}

@menu
* Writing text::                
* Formatting text::             
* Fonts::                       
@end menu


@node Writing text
@subsection Writing text

This section introduces different ways of adding text to a score.

@menu
* Text scripts::                
* Text spanners::               
* Text marks::                  
* Separate text::               
@end menu


@node Text scripts
@subsubsection Text scripts

@cindex Text scripts
@cindex text items, non-empty
@cindex non-empty texts

It is possible to add arbitrary text indications
to a score, as demonstrated in the following example.
Such indications can also be manually placed
above or below the staff, using the
simple syntax described in @ref{Direction and
placement}.

@lilypond[quote,fragment,ragged-right,verbatim,relative=1]
d8^"pizz." e f g a4-"scherz." f
@end lilypond

In LilyPond, such text strings are called @command{markup}
objects.  This syntax is actually a shorthand; more complex text
formatting may be added to a note by explicitly using a
@code{\markup} block, as described in @ref{Formatting text}.

@lilypond[quote,fragment,ragged-right,verbatim,relative=1]
d8^\markup { \italic pizz. } e f g 
a4_\markup { \tiny scherz. \bold molto } f
@end lilypond

By default, text indications do not influence the note spacing.
However, their widths can be taken into account:
in the following example, the first text string does not affect 
spacing, whereas the second one does.

@lilypond[quote,fragment,ragged-right,verbatim,relative=1]
d8^"pizz." e f g \textLengthOn a4_"scherzando" f
@end lilypond

@predefined

@funindex \textLengthOn
@code{\textLengthOn},
@funindex \textLengthOff
@code{\textLengthOff}


@seealso

Notation Reference: @ref{Formatting text},
@ref{Direction and placement}.

Snippets:
@rlsr{Text}.

Internals Reference: @rinternals{TextScript}.

@knownissues

Checking to make sure that text scripts and lyrics are within the
margins is a relatively large computational task.  To speed up
processing, LilyPond does not perform such calculations by
default; to enable it, use

@example
\override Score.PaperColumn #'keep-inside-line = ##t
@end example


@node Text spanners
@subsubsection Text spanners

@cindex Text spanners

Some performance indications, e.g., @i{rallentando} or
@i{accelerando}, are written as text and are extended over many
measures with dotted lines.
Such objects, called @q{spanners}, may be created
from one note to another using the following syntax:

@lilypond[verbatim,quote,ragged-right,fragment,relative=2]
\override TextSpanner #'bound-details #'left #'text = "rit." 
b1\startTextSpan 
e,\stopTextSpan
@end lilypond

@noindent
The string to be printed is set through
object properties.  By default it is printed in italic characters,
but different formatting can be obtained using
@code{\markup} blocks, as described in @ref{Formatting text}.

@lilypond[quote,ragged-right,fragment,relative=2,verbatim]
\override TextSpanner #'bound-details #'left #'text =
  \markup { \upright "rit." } 
b1\startTextSpan c
e,\stopTextSpan
@end lilypond

The line style, as well as the text string, can be defined as an
object property.  This syntax is described in @ref{Line styles}.

@predefined

@funindex textSpannerUp
@code{\textSpannerUp},
@funindex textSpannerDown
@code{\textSpannerDown},
@funindex textSpannerNeutral
@code{\textSpannerNeutral}

@seealso

Notation Reference: @ref{Line styles}.

Snippets:
@rlsr{Text}.

Internals Reference: @rinternals{TextSpanner}.


@node Text marks
@subsubsection Text marks

@cindex coda on bar line
@cindex segno on bar line
@cindex fermata on bar line
@cindex bar lines, symbols on
@funindex \mark

Various text elements can be added to a score using
the syntax described in @ref{Rehearsal marks}:

@lilypond[verbatim,quote,ragged-right,fragment,relative=2]
c4\mark "Allegro" c c c
@end lilypond

This syntax makes possible to put any text on a bar line;
more complex text formatting may be added using a @code{\markup}
block, as described in @ref{Formatting text}.  This can be used to print
signs like coda, segno or fermata, by specifying the appropriate
symbol name:

@lilypond[fragment,quote,ragged-right,verbatim,relative=2]
c1 \mark \markup { \musicglyph #"scripts.ufermata" }
c1
@end lilypond

@noindent
Such objects are only typeset above the top staff of the score; depending on
whether they are specified at the end or the middle of a bar, they 
can be placed above the bar line or between notes.  When specified at the
beginning of a score or at a line break, marks will be printed at
the beginning of the line (the next line, in case of a line break).

@lilypond[fragment,quote,ragged-right,verbatim,relative=2]
\mark "Allegro" c1
c\mark "assai" \break
c c
@end lilypond


@snippets

@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{printing-marks-at-the-end-of-a-line-or-a-score.ly}

@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{aligning-marks-with-various-notation-objects.ly}

@lilypondfile[verbatim,lilyquote,ragged-right,texidoc,doctitle]
{printing-marks-on-every-staff.ly}

@seealso

Notation Reference: @ref{Rehearsal marks},
@ref{Formatting text}, @ref{The Feta font}.

Snippets:
@rlsr{Text}.

Internals Reference: @rinternals{RehearsalMark}.

@knownissues
@c  IMO this is a bug; hopefully it'll be fixed soon, so I can
@c  delete this sentence.   -gp
@c  A workaround is suggested in the first @snippets item -vv

If a mark is entered at the end of the last bar of the score (where
there is no next line), then the mark will not be printed at
all.

@node Separate text
@subsubsection Separate text

@cindex separate text
@cindex standalone text
@cindex top-level text
@cindex text, standalone
@funindex \markup

A @code{\markup} block can exist by itself, outside of any
any @code{\score} block, as a @qq{top-level
expression}.  This syntax is described in @ref{File structure}.

@lilypond[verbatim,quote]
\markup {
  Tomorrow, and tomorrow, and tomorrow...
}
@end lilypond

@noindent
This allows to print text separately
from the music, which is particularly 
useful when the input file contains
several music pieces, as described in
@ref{Multiple scores in a book}.

@lilypond[quote,ragged-right,verbatim]
\score {
  c'1
}
\markup {
  Tomorrow, and tomorrow, and tomorrow...
}
\score {
  c'1
}
@end lilypond

Using a specific syntax, text blocks can be spread
over multiple pages, making possible to print
text documents or books -- and therefore to
use LilyPond as a word processor.  This syntax is described in
@ref{Multi-page markup}.

@predefined

@funindex \markup
@code{\markup},
@funindex \markuplines
@code{\markuplines}

@ignore
@snippets

TODO: add convenient snippets in input/new -vv
@end ignore

@seealso

Notation Reference: @ref{Formatting text},
@ref{File structure}, 
@ref{Multiple scores in a book},
@ref{Multi-page markup}.

Snippets:
@rlsr{Text}.

Internals Reference: @rinternals{TextScript}.


@node Formatting text
@subsection Formatting text

This section presents basic and advanced text formatting,
using the @code{\markup} mode specific syntax.

@menu
* Text markup introduction::    
* Common markup commands::      
* Text alignment::              
* Graphic notation inside markup::  
* Music notation inside markup::  
* Multi-page markup::          
@end menu

@node Text markup introduction
@subsubsection Text markup introduction

@cindex markup
@cindex text markup
@cindex markup text
@cindex typeset text

A @code{\markup} block is used to typeset text with an extensible
specific syntax called @qq{markup mode}.

@cindex markup expressions
@cindex markup syntax

The markup syntax is similar to LilyPond's usual syntax: a
@code{\markup} expression is enclosed in curly braces @code{@{
@dots{} @}}.

In markup mode, specific commands are entered using the backslash
@code{\} character.  Such commands only affect the first following
expression.

Markup expressions may also be enclosed in double quotes
@code{"..."}. Such expressions are treated as text strings
and may not contain nested expressions or commands.
Therefore, braces are generally prefered to double quotes;
the following example demonstrates both syntaxes.

@lilypond[quote,verbatim,fragment,relative=1]
e1-\markup "intenso"
a2^\markup { poco \italic più forte  }
c e1
d2_\markup { \italic "string. assai" }
e 
b1^\markup { \bold { molto \italic  agitato } }
c
@end lilypond

@cindex special characters in markup mode
@cindex markup mode, special characters
@cindex reserved characters, printing
@cindex printing special characters

Special characters such as @code{\} and @code{#}
can be printed in the output simply using double
quotes.  Double quotation marks are only printed
in the output when preceded by backslashes:

@lilypond[quote,verbatim,fragment,relative=1]
\clef bass
a^\markup "##\ LEPORELLO \##"
a_\markup "Bravi! \"Cosa rara\"!"
r a8 d
cis a r4 r2
@end lilypond

The way markup expressions are defined affects 
how these expressions will stacked, centered and aligned
when using the commands explained in @ref{Text alignment}.

@lilypond[quote,verbatim,fragment,relative=1]
c1^\markup { \column { a bbbb \line { c d } } }
c1^\markup { \center-align { a bbbb c } }
c1^\markup { \line { a b c } }
@end lilypond

Lists of words that are not enclosed with double quotes
or preceded by a previous command are not kept distinct.  In
the following example, the first two @code{\markup} expressions
are equivalent:

@lilypond[quote,verbatim,fragment,relative=1]
c1^\markup { \center-align { a bbb c } }
c1^\markup { \center-align { a { bbb c } } }
c1^\markup { \center-align { a \line { bbb c } } }
@end lilypond


Markups can be stored in variables.  These variables may be
directly attached to notes:

@lilypond[quote,verbatim]
allegro = \markup { \bold \large Allegro }

{
  d''8.^\allegro
  d'16 d'4 r2
}
@end lilypond


@noindent
An exhaustive list of @code{\markup}-specific commands can be found in
@ref{Text markup commands}.


@seealso

This manual: @ref{Text markup commands}.

Snippets:
@rlsr{Text}.

Internals Reference: @rinternals{TextScript}.

Init files: @file{scm/@/new@/-markup@/.scm}.


@knownissues

@c FIXME: this is totally deprecated, isn't it? -vv
Kerning or generation of ligatures is only done when the @TeX{}
backend is used.  In this case, LilyPond does not account for them
so texts will be spaced slightly too wide.

@c is the following sentence really relevant? -vv
Syntax errors for markup mode are confusing.


@node Common markup commands
@subsubsection Common markup commands

Some basic formatting can be used blah blah



@ignore
TODO: here are some commands that could be described here.
I'm putting them in bulk, prior to working on this section. -vv

\simple

\char
\fraction

\combine
\concat
\put-adjacent


\page-ref (see also "Table of contents")
\fromproperty
\verbatim-file
\with-url

\on-the-fly 
\override


\null
\hspace

\lower
\raise 
\translate 
\translate-scaled
\rotate
\transparent
\whiteout

@end ignore



@cindex font switching

Some font switching commands are demonstrated here.

\italic 
\upright
\bold 
\medium 
\underline
        

@c TODO: what's the difference between the following commands? -vv
\smallCaps      
\caps 
\fontCaps


Some alternate font families can easily be selected:

\sans
\typewriter
\roman
\number (only for numbers, such as fingerings and time signatures)
@c TODO: add \slashed-digit here? -vv

The size can be blah blah blah

\fontsize

Some predefined font sizes can be used blah blah

\teeny
\tiny
\small  
\normalsize
\large
\huge

Some shorcuts allow to change the font size relatively to its previous value 

\smaller
\bigger
\larger

\magnify

Text may be printed as subscript or superscript:

\sub 
\super

To obtain subscripts or superscripts in a normal text size, use
\normal-size-sub
\normal-size-super

All these settings (except the size) can be reverted to the default font:

\normal-text 


@node Text alignment
@subsubsection Text alignment


Some objects have alignment procedures of their own, which cancel
out any effects of alignments applied to their markup arguments as
a whole.  For example, the @rinternals{RehearsalMark} is
horizontally centered, so using @code{\mark \markup @{ \left-align
.. @}} has no effect.

In addition, vertical placement is performed after creating the
text markup object.  If you wish to move an entire piece of
markup, you need to use the #'padding property or create an
@q{anchor} point inside the markup (generally with @code{\hspace
#0}).

@lilypond[quote,verbatim,fragment,relative=1]
\textLengthOn
c'4^\markup{ \raise #5 "not raised" }
\once \override TextScript #'padding = #3
c'4^\markup{ raised }
c'4^\markup{ \hspace #0 \raise #1.5 raised }
@end lilypond

Some situations (such as dynamic marks) have preset font-related
properties.  If you are creating text in such situations, it is
advisable to cancel those properties with @code{normal-text}.  See
@ref{Text markup commands}, for more details.


Alignment basics:
\left-align
\center-align
\right-align

Horizontal alignment:
\hcenter
\general-align
\halign 


Vertical alignment: 
\vcenter
\column 
\dir-column 

Building a "large" markup:

\line

\fill-line

\hcenter-in
        
\pad-around
\pad-markup
\pad-to-box
\pad-x
        
Alignment inside a "large" markup:

\justify-field 
\justify
\justify-string

\wordwrap-field
\wordwrap
\wordwrap-string

@node Graphic notation inside markup
@subsubsection Graphic notation inside markup
Graphics around text:
\box
\circle

\bracket
\hbracket

"Standalone" graphics:

\arrow-head
\draw-line
\draw-circle
\filled-box
\triangle
\strut

\with-color


Advanced graphics:
\stencil

\postscript
\epsfile

\with-dimensions

@node Music notation inside markup
@subsubsection Music notation inside markup

Notes can be printed in markup mode blah blah:

\note   
\note-by-number

Accidental symbols can be obtained easily:

\doubleflat
\sesquiflat
\flat
\semiflat
\natural
\semisharp
\sharp
\sesquisharp
\doublesharp

Some other notation objects blah blah

\beam
\finger
\dynamic
\tied-lyric
\markalphabet
\markletter
@c TODO: add \text here? -vv

Any musical symbol can be printed

\musicglyph
@c TODO: add \lookup here? -vv


The markup mode has support for fret diagrams:

\fret-diagram 
\fret-diagram-terse
\fret-diagram-verbose

An entire @code{\score} block can even be nested in a @code{\markup}
block.  In such a case, the @code{\score} must contain a @code{\layout} block.


\score


@lilypond[quote,verbatim,ragged-right]
\relative {
  c4 d^\markup {
    \score {
      \relative { c4 d e f }
      \layout { }
    }
  }
  e f
}
@end lilypond

@seealso

Snippets:
@rlsr{Text}.

@node Multi-page markup
@subsubsection Multi-page markup

Whereas @code{\markup} is used to enter a non-breakable block of
text, @code{\markuplines} can be used at top-level to enter lines
of text that can spread over multiple pages:

@verbatim
\markuplines {
  \justified-lines {
    A very long text of justified lines.
    ...
  }
  \justified-lines {
    An other very long paragraph.
    ...
  }
  ...
}
@end verbatim

@code{\markuplines} accepts a list of markup, that is either the
result of a markup list command, or a list of markups or of markup
lists.  The built-in markup list commands are described in
@ref{Text markup list commands}.

@seealso

This manual: @ref{Text markup list commands}, @ref{New
markup list command definition}.

Snippets:
@rlsr{Text}.

@predefined

@funindex \markuplines
@code{\markuplines}



@c TODO: move the following subsubsec into NR3 -vv
@c maybe.  -gp
@node Fonts
@subsection Fonts

@menu
* Entire document fonts::       
* Single entry fonts::          
@end menu

@node Entire document fonts
@subsubsection Entire document fonts

It is also possible to change the default font family for the
entire document.  This is done by calling the
@code{make-pango-font-tree} from within the @code{\paper} block.
The function takes names for the font families to use for roman,
sans serif and monospaced text.  For example,

@cindex font families, setting
@cindex Pango


@lilypond[verbatim]
\paper  {
  myStaffSize = #20

  #(define fonts
    (make-pango-font-tree "Times New Roman"
                          "Nimbus Sans"
                          "Luxi Mono"
                           (/ myStaffSize 20)))
}

{
  c'^\markup { roman: foo \sans bla \typewriter bar }
}
@end lilypond

@c we don't do Helvetica / Courier, since GS incorrectly loads
@c Apple TTF fonts


@node Single entry fonts
@subsubsection Single entry fonts

@cindex font selection
@cindex font magnification
@funindex font-interface

By setting the object properties described below, you can select a
font from the preconfigured font families.  LilyPond has default
support for the feta music fonts.  Text fonts are selected through
Pango/FontConfig.  The serif font defaults to New Century
Schoolbook, the sans and typewriter to whatever the Pango
installation defaults to.


@itemize
@item @code{font-encoding}
is a symbol that sets layout of the glyphs.  This should only be
set to select different types of non-text fonts, e.g.

@code{fetaBraces} for piano staff braces, @code{fetaMusic} the
standard music font, including ancient glyphs, @code{fetaDynamic}
for dynamic signs and @code{fetaNumber} for the number font.

@item @code{font-family}
is a symbol indicating the general class of the typeface.
Supported are @code{roman} (Computer Modern), @code{sans}, and
@code{typewriter}.

@item @code{font-shape}
is a symbol indicating the shape of the font.  There are typically
several font shapes available for each font family.  Choices are
@code{italic}, @code{caps}, and @code{upright}.

@item @code{font-series}
is a symbol indicating the series of the font.  There are
typically several font series for each font family and shape.
Choices are @code{medium} and @code{bold}.

@end itemize

Fonts selected in the way sketched above come from a predefined
style sheet.  If you want to use a font from outside the style
sheet, then set the @code{font-name} property,

@lilypond[fragment,verbatim]
{
  \override Staff.TimeSignature #'font-name = #"Charter"
  \override Staff.TimeSignature #'font-size = #2
  \time 3/4
  c'1_\markup {
    \override #'(font-name . "Vera Bold")
      { This text is in Vera Bold }
  }
}
@end lilypond

@noindent
Any font can be used, as long as it is available to
Pango/FontConfig.  To get a full list of all available fonts, run
the command

@example
lilypond -dshow-available-fonts blabla
@end example

(the last argument of the command can be anything, but has to be
present).


The size of the font may be set with the @code{font-size}
property.  The resulting size is taken relative to the
@code{text-font-size} as defined in the @code{\paper} block.

@cindex font size
@cindex font magnification




@seealso

Snippets:
@rlsr{Text}.