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:mod:`~matplotlib.mathtext` is a module for parsing a subset of the
TeX math syntax and drawing them to a matplotlib backend.
For a tutorial of its usage see :ref:`mathtext-tutorial`. This
document is primarily concerned with implementation details.
The module uses pyparsing_ to parse the TeX expression.
.. _pyparsing: http://pyparsing.wikispaces.com/
The Bakoma distribution of the TeX Computer Modern fonts, and STIX
fonts are supported. There is experimental support for using
arbitrary fonts, but results may vary without proper tweaking and
metrics for those fonts.
If you find TeX expressions that don't parse or render properly,
please email mdroe@stsci.edu, but please check KNOWN ISSUES below first.
i( t divisionN( t StringIO( t ceil( t Set( t warn( t inft isinf( t Combinet Groupt Optionalt Forwardt Literalt OneOrMoret
ZeroOrMoret ParseExceptiont Emptyt ParseResultst Suppresst oneOft StringEndt ParseFatalExceptiont
FollowedByt Regext
ParserElement( t AFM( t Buncht get_realpath_and_statt is_string_liket maxdict( t FT2Fontt FT2Imaget KERNING_DEFAULTt LOAD_FORCE_AUTOHINTt LOAD_NO_HINTING( t findfontt FontProperties( t latex_to_bakomat latex_to_standardt tex2unit
latex_to_cmext stix_virtual_fonts( t
get_data_patht rcParamsc C s{ | d j o d Sy t | SWn t j
o n Xy t | i d SWn) t j
o d t } t | n Xd S( s get_unicode_index(symbol) -> integer
Return the integer index (from the Unicode table) of symbol. *symbol*
can be a single unicode character, a TeX command (i.e. r'\pi'), or a
Type1 symbol name (i.e. 'phi').
t -i" s \sA '%(symbol)s' is not a valid Unicode character or
TeX/Type1 symbolN( t ordt TypeErrorR& t stript KeyErrort localst
ValueError( t symbolt message( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_unicode_index< s
t MathtextBackendc B sD e Z d Z d Z d Z d Z d Z d Z d Z RS( s
The base class for the mathtext backend-specific code. The
purpose of :class:`MathtextBackend` subclasses is to interface
between mathtext and a specific matplotlib graphics backend.
Subclasses need to override the following:
- :meth:`render_glyph`
- :meth:`render_filled_rect`
- :meth:`get_results`
And optionally, if you need to use a Freetype hinting style:
- :meth:`get_hinting_type`
c C s
d | _ d S( N( t Nonet fonts_object( t self( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt __init__f s c C s | | _ | | _ | | _ d S( s Dimension the drawing canvasN( t widtht heightt depth( R8 t wt ht d( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt set_canvas_sizei s c C s
t d S( s_
Draw a glyph described by *info* to the reference point (*ox*,
*oy*).
N( t NotImplementedError( R8 t oxt oyt info( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt render_glypho s c C s
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Draw a filled black rectangle from (*x1*, *y1*) to (*x2*, *y2*).
N( RA ( R8 t x1t y1t x2t y2( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt render_filled_rectv s c C s
t d S( sp
Return a backend-specific tuple to return to the backend after
all processing is done.
N( RA ( R8 t box( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_results| s c C s t S( s\
Get the Freetype hinting type to use with this particular
backend.
( R! ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_hinting_type s ( t __name__t
__module__t __doc__R9 R@ RE RJ RL RM ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR5 V s t MathtextBackendBboxc B sM e Z d Z d Z d Z d Z d Z d Z d Z d Z RS( so
A backend whose only purpose is to get a precise bounding box.
Only required for the Agg backend.
c C s/ t i | d d d d g | _ | | _ d S( Ni ( R5 R9 t bboxt real_backend( R8 RS ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
c C sY t | i d | t | i d | t | i d | t | i d | g | _ d S( Ni i i i ( t minRR t max( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt _update_bbox s c C sB | i | | i i | | i i | | i i | | i i d S( N( RV t metricst xmint ymaxt xmaxt ymin( R8 RB RC RD ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE s
c C s | i | | | | d S( N( RV ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt render_rect_filled s c C s | i } | i } t d d | | i } | d d | d d | d d | d d g } | i | i i | d | d | d | d | | d | d | t | d | d | | i i | S( Ni i i i ( R; R< t shipRR t _switch_to_real_backendR7 R@ RL ( R8 RK t orig_heightt
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| i i S( N( RS RM ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRM s c C sH | i | i _ | i | i _ | i d | i _ | i d | i _ d S( Ni i ( RS R7 t mathtext_backendRR RB RC ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR^ s (
RN RO RP R9 RV RE R\ RL RM R^ ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRQ s t MathtextBackendAggRenderc B sD e Z d Z d Z d Z d Z d Z d Z d Z RS( s
Render glyphs and rectangles to an FTImage buffer, which is later
transferred to the Agg image by the Agg backend.
c C s, d | _ d | _ d | _ t i | d S( Ni ( RB RC R6 t imageR5 R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C s< t i | | | | t t | t | | | _ d S( N( R5 R@ R R Rc ( R8 R= R> R? ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR@ s c C s- | i i | i | | | i i | i d S( N( t fontt draw_glyph_to_bitmapRc RW t icebergt glyph( R8 RB RC RD ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE s c C s t t | | d d } | d j o* | | d } t | | d d } n
t | } | i i t | | t | | | d S( Ni i g @( RU t intRc t draw_rect_filledR ( R8 RF RG RH RI R; t centert y( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ s
c C s; | i | i | i | i | i | i | i | i i f S( N( RB RC R: R; R< Rc R7 t get_used_characters( R8 RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL s
c C s t S( N( R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRM s ( RN RO RP R9 R@ RE R\ RL RM ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRb s c C s
t t S( N( RQ Rb ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt MathtextBackendAgg s t MathtextBackendBitmapRenderc B s e Z d Z RS( c C s | i | i f S( N( Rc R< ( R8 RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL s ( RN RO RL ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRn s c C s
t t S( sn
A backend to generate standalone mathtext images. No additional
matplotlib backend is required.
( RQ Rn ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt MathtextBackendBitmap s t MathtextBackendPsc B s2 e Z d Z d Z d Z d Z d Z RS( sX
Store information to write a mathtext rendering to the PostScript
backend.
c C s t | _ d | _ d S( N( R t pswriterR6 t lastfont( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C s | i | | i } | i } | i } | i } | | f | i j o0 d t } | | f | _ | i i | n d t } | i i | d S( Ns= /%(postscript_name)s findfont
%(fontsize)s scalefont
setfont
s1 %(ox)f %(oy)f moveto
/%(symbol_name)s glyphshow
( R; t offsett postscript_namet fontsizet symbol_nameRr R0 Rq t write( R8 RB RC RD Rt Ru Rv t ps( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE s
c C s9 d | | i | | | | | f } | i i | d S( Ns %f %f %f %f rectfill
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t MathtextBackendPdfc B s2 e Z d Z d Z d Z d Z d Z RS( sQ
Store information to write a mathtext rendering to the PDF
backend.
c C s g | _ g | _ d S( N( t glyphst rects( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C sO | i i } | i | | i } | i i | | | | i | i | i f d S( N( Rd t fnameR; Rs Rz t appendRu t numRv ( R8 RB RC RD t filename( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE # s
c C s/ | i i | | i | | | | | f d S( N( R{ R} R; ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ * s c C sI t d | i | | i | i | i | i | i | i | i i f S( Ni ( R] R< R: R; Rz R{ R7 Rl ( R8 RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL - s
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t MathtextBackendSvgc B s2 e Z d Z d Z d Z d Z d Z RS( sQ
Store information to write a mathtext rendering to the SVG
backend.
c C s g | _ g | _ d S( N( t
svg_glyphst svg_rects( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 ; s c C sR | i | | i } t | i } | i i | i | i | | | | i f d S( N( R; Rs t unichrR~ R R} Rd Ru RW ( R8 RB RC RD t thetext( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE ? s c C s3 | i i | | i | d | | | | f d S( Ni ( R R} R; ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ E s c C s[ t d | i | t d | i d | i } | i | i | i | i | | i i f S( Ni R R ( R] R< R R R R: R; R7 Rl ( R8 RK t svg_elements( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL I s
( RN RO RP R9 RE R\ RL ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR 6 s
t MathtextBackendCairoc B s2 e Z d Z d Z d Z d Z d Z RS( sS
Store information to write a mathtext rendering to the Cairo
backend.
c C s g | _ g | _ d S( N( Rz R{ ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 Y s c C sL | | i | i } t | i } | i i | i | i | | | f d S( N( Rs R; R R~ Rz R} Rd Ru ( R8 RB RC RD R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE ] s c C s/ | i i | | | i | | | | f d S( N( R{ R} R; ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ c s c C s= t d | i | | i | i | i | i | i | i f S( Ni ( R] R< R: R; Rz R{ ( R8 RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL g s
( RN RO RP R9 RE R\ RL ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR S s
t Fontsc B sz e Z d Z d Z d Z d Z d Z d Z d Z d Z d Z
d Z d
Z d Z
d Z RS(
s
An abstract base class for a system of fonts to use for mathtext.
The class must be able to take symbol keys and font file names and
return the character metrics. It also delegates to a backend class
to do the actual drawing.
c C s+ | | _ | | _ | | i _ h | _ d S( sH
*default_font_prop*: A
:class:`~matplotlib.font_manager.FontProperties` object to use
for the default non-math font, or the base font for Unicode
(generic) font rendering.
*mathtext_backend*: A subclass of :class:`MathTextBackend`
used to delegate the actual rendering.
N( t default_font_propRa R7 t used_characters( R8 R Ra ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 x s
c C s
d | _ d S( sa
Fix any cyclical references before the object is about
to be destroyed.
N( R6 R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt destroy s c
C s d S( su
Get the kerning distance for font between *sym1* and *sym2*.
*fontX*: one of the TeX font names::
tt, it, rm, cal, sf, bf or default/regular (non-math)
*fontclassX*: TODO
*symX*: a symbol in raw TeX form. e.g. '1', 'x' or '\sigma'
*fontsizeX*: the fontsize in points
*dpi*: the current dots-per-inch
g ( (
R8 t font1t
fontclass1t sym1t fontsize1t font2t
fontclass2t sym2t fontsize2t dpi( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_kern s c C s" | i | | | | | } | i S( s
*font*: one of the TeX font names::
tt, it, rm, cal, sf, bf or default/regular (non-math)
*font_class*: TODO
*sym*: a symbol in raw TeX form. e.g. '1', 'x' or '\sigma'
*fontsize*: font size in points
*dpi*: current dots-per-inch
Returns an object with the following attributes:
- *advance*: The advance distance (in points) of the glyph.
- *height*: The height of the glyph in points.
- *width*: The width of the glyph in points.
- *xmin*, *xmax*, *ymin*, *ymax* - the ink rectangle of the glyph
- *iceberg* - the distance from the baseline to the top of
the glyph. This corresponds to TeX's definition of
"height".
( t _get_infoRW ( R8 Rd t
font_classt symRu R RD ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_metrics s c C sR t | t | t | | _ | _ | _ | i i | i | i | i d S( s
Set the size of the buffer used to render the math expression.
Only really necessary for the bitmap backends.
N( R R: R; R< Ra R@ ( R8 R= R> R? ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR@ s /c C s | i | | | | | } t | i i \ } }
| i i |
| t f } | d i | i | i i
| | | d S( s
Draw a glyph at
- *ox*, *oy*: position
- *facename*: One of the TeX face names
- *font_class*:
- *sym*: TeX symbol name or single character
- *fontsize*: fontsize in points
- *dpi*: The dpi to draw at.
i N( R R Rd R| R t
setdefaultt sett addR~ Ra RE ( R8 RB RC t facenameR R Ru R RD t realpatht stat_keyR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRE s c C s | i i | | | | d S( sL
Draw a filled rectangle from (*x1*, *y1*) to (*x2*, *y2*).
N( Ra R\ ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ s c C s
t d S( sF
Get the xheight for the given *font* and *fontsize*.
N( RA ( R8 Rd Ru R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_xheight s c C s
t d S( s
Get the line thickness that matches the given font. Used as a
base unit for drawing lines such as in a fraction or radical.
N( RA ( R8 Rd Ru R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_underline_thickness s c C s | i S( s
Get the set of characters that were used in the math
expression. Used by backends that need to subset fonts so
they know which glyphs to include.
( R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRl s c C s | i i | S( s
Get the data needed by the backend to render the math
expression. The return value is backend-specific.
( Ra RL ( R8 RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRL s c C s
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Override if your font provides multiple sizes of the same
symbol. Should return a list of symbols matching *sym* in
various sizes. The expression renderer will select the most
appropriate size for a given situation from this list.
( ( R8 t fontnameR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt! get_sized_alternatives_for_symbol s ( RN RO RP R9 R R R R@ RE R\ R R Rl RL R ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR o s t
TruetypeFontsc B si e Z d Z d d d YZ d Z d Z d Z d Z d Z d Z d Z
d
Z RS( sa
A generic base class for all font setups that use Truetype fonts
(through FT2Font).
t
CachedFontc B s e Z d Z d Z RS( c C s[ | | _ | i | _ t g } | i i D] \ } } | | | f q/ ~ | _ d S( N( Rd t get_charmapt charmapt dictt iteritemst glyphmap( R8 Rd t _[1]t ccodet glyphind( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C s
t | i S( N( t reprRd ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt __repr__ s ( RN RO R9 R ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C sj t i | | | h | _ h | _ t | } | i t t | } | | i d <| | i d Wd S( N( t StixFontst _stix_fallbackR R9 R t _fontmapR R" ( R8 t argst kwargsR R t fullpath( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
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\leftbraces
ightbraces \leftbrackets
ightbracketc C s | i i | | | f g S( N( t _size_alternativesR ( R8 R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s ( R R ( R s ( R s ( R s ( R s ( R R ( R s ( R s ( R s ( R s !( R R ( R s ( R s n( R s ( R R ( R R ( R s ( R s o( R s ( R R ( R R ( R s ( R s h( R s "( R R ( R s ( R s i( R s #( R s ( R s j( R s ( R s $( R s ( R s k( R s ( R s %( R s ( R s l( R s ( R s &( R s ( R s m( R s ( R s '( R s ( R s D( R s ( R s *( R s ( R s E( R s ( R s +( R s p( R s q( R s r( R s s( R s ( R s /( R s ( R s -( R s /( R s ( R s .( R s ( R s ,( R s ^( R s b( R s c( R s d( R s ~( R s e( R s f( R s g( R s h( R s D( R s i( R s E( s
\leftparenR ( s
ightparentR ( s
\leftbraceR ( s
ightbraceR ( s \leftbracketR ( s
ightbracketR (
RN RO RP R R9 R t splitR R R t aliast targetR ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR sr
"
t UnicodeFontsc B sJ e Z d Z e Z d Z e d i Z d Z d Z
d Z RS( sa
An abstract base class for handling Unicode fonts.
While some reasonably complete Unicode fonts (such as DejaVu) may
work in some situations, the only Unicode font I'm aware of with a
complete set of math symbols is STIX.
This class will "fallback" on the Bakoma fonts when a required
symbol can not be found in the font.
c O s t d o t | | | _ n
d | _ t i | | | h | _ x; d i D]- } t d | } t | } | | i | t i | | i t 9_ | i t 9_ | i t 9_ d S( N( RO RU R: t GROW_FACTORR; R< ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU s
c C s d S( N( ( R8 RF RG RH RI ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRV s ( RN RO RP R9 RT RU RV ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRW s
t Vboxc B s e Z d Z d Z RS( s.
A box with only height (zero width).
c C s t i | d | | d S( Ng ( RW R9 ( R8 R; R< ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR[ s t Hboxc B s e Z d Z d Z RS( s8
A box with only width (zero height and depth).
c C s t i | | d d d S( Ng ( RW R9 ( R8 R: ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR\ s t Charc B sV e Z d Z d Z d Z d Z d Z d Z d Z d Z d Z
RS( s#
Represents a single character. Unlike TeX, the font information
and metrics are stored with each :class:`Char` to make it easier
to lookup the font metrics when needed. Note that TeX boxes have
a width, height, and depth, unlike Type1 and Truetype which use a
full bounding box and an advance in the x-direction. The metrics
must be converted to the TeX way, and the advance (if different
from width) must be converted into a :class:`Kern` node when the
:class:`Char` is added to its parent :class:`Hlist`.
c C s t i | | | _ | i | _ t | i t t t f p t | i | _ | i
| _
| i | _ | i | _ | i
d S( N( RO R9 R t font_outputR Rd R RF Rh t AssertionErrorR Ru R t _update_metrics( R8 R t state( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
# c C s d | i S( Ns `%s`( R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRQ s c C s | i i | i | i | i | i | i } | _ | i d j o | i | _ n
| i | _ | i
| _ | i
| i | _ d S( Nt (
R^ R Rd R R Ru R t _metricsR R: Rf R; R< ( R8 RW ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR` s + c C s
| i i S( N( Rc R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt
is_slanted s c
C sz | i i | i } d } t | t oI | i i | i | i | i | i
| i | i | i | i
| i } n | | S( s
Return the amount of kerning between this and the given
character. Called when characters are strung together into
:class:`Hlist` to create :class:`Kern` nodes.
g ( Rc R R: R R] R^ R Rd R R Ru R ( R8 RS R t kern( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s5 | i i | | | i | i | i | i | i d S( s4
Render the character to the canvas
N( R^ RE Rd R R Ru R ( R8 R Rk ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRV s c C sa t i | | i t j o@ | i t 9_ | i t 9_ | i t 9_ | i t 9_ n d S( N( RO RT RP RX Ru RY R: R; R< ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRT s
c C sM t i | | i t 9_ | i t 9_ | i t 9_ | i t 9_ d S( N( RO RU Ru RZ R: R; R< ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU ! s
( RN RO RP R9 RQ R` Rd R RV RT RU ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR] s
t Accentc B s2 e Z d Z d Z d Z d Z d Z RS( s
The font metrics need to be dealt with differently for accents,
since they are already offset correctly from the baseline in
TrueType fonts.
c C sg | i i | i | i | i | i | i } | _ | i | i | _
| i | i | _
d | _ d S( Ni ( R^ R Rd R R Ru R Rc RZ RX R: RY R[ R; R< ( R8 RW ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR` . s
+c C s t i | | i d S( N( R] RT R` ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRT 5 s
c C s t i | | i d S( N( R] RU R` ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU 9 s
c C sI | i i | | i i | | i i | i | i | i | i | i d S( s5
Render the character to the canvas.
N(
R^ RE Rc RX R[ Rd R R Ru R ( R8 R Rk ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRV = s ( RN RO RP R` RT RU RV ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRf ( s
t Listc B sD e Z d Z d Z d Z d Z d Z d Z d Z RS( s:
A list of nodes (either horizontal or vertical).
c C sG t i | d d d d | _ | | _ d | _ d | _ d | _ d S( Ng i ( RW R9 t shift_amountt childrent glue_sett glue_signt
glue_order( R8 t elements( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 I s c C sY d | i | i | i | i | i d i g } | i D] } | t | q8 ~ f S( Ns! [%s <%.02f %.02f %.02f %.02f> %s]Rb ( RQ R: R; R< Rh RC Ri R ( R8 R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR R s
c C sM d } x@ t t | d d d D]" } | | d j o | } Pq# q# W| S( s
A helper function to determine the highest order of glue
used by the members of this list. Used by vpack and hpack.
i i ig ( R1 R ( R8 t totalsR R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt _determine_orderY s c C s | i | } | | _ | | _ | | d j o | | | | _ n d | _ d | _ | d j o8 t | i o$ t d | | i i | f t
q n d S( Ng i s %s %s: %r( Ro Rl Rk Rj t
glue_ratioR Ri R RR RN R ( R8 R t signRn t
error_typeR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt _set_gluee s
c C sa x | i D] } | i q
Wt i | | i t j o" | i t 9_ | i t 9_ n d S( N( Ri RT RW RP RX Rh RY Rj ( R8 t child( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRT s s
c C sM x | i D] } | i q
Wt i | | i t 9_ | i t 9_ d S( N( Ri RU RW Rh RZ Rj ( R8 Rt ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU { s
( RN RO RP R9 R Ro Rs RT RU ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRg E s t Hlistc B s8 e Z d Z d d e d Z d Z d d d Z RS( s%
A horizontal list of boxes.
g t
additionalc C s3 t i | | | o | i n | i d S( N( Rg R9 Re t hpack( R8 Rm R= R t do_kern( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C s g } t | i } | o x t | D] } | i | } | | d j o | i | d } n d } | i | | i | } | d j o t | } | i | q) q) W| | _ n d S( s)
Insert :class:`Kern` nodes between :class:`Char` nodes to set
kerning. The :class:`Char` nodes themselves determine the
amount of kerning they need (in :meth:`~Char.get_kerning`),
and this function just creates the linked list in the correct
way.
i g N( R Ri R1 R6 R} R t Kern( R8 t new_childrent num_childrenR t elemRS t kerning_distanceRe ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRe s
c C s/ d } d } d } d g d } d g d } xR| i D]G} t | t o5 | | i 7} t | | i } t | | i } q6 t | t ou | | i 7} t | i oS t | i oB t | d d } t | | i | } t | | i | } q}q6 t | t
oF | i }
| |
i 7} | |
i c |
i
7<| |
i c |
i 7 R? R t
total_stretcht total_shrinkR R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRw sL
"
( RN RO RP R R9 Re Rw ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRu s &t Vlistc B s5 e Z d Z d d d Z d d e e d Z RS( s#
A vertical list of boxes.
g Rv c C s t i | | | i d S( N( Rg R9 t vpack( R8 Rm R> R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s c C s1 d } d } d } d g d } d g d } x,| i D]!} t | t oZ | | | i 7} | i } t | i p, t | d d }
t | | i |
} qWq6 t | t oV | | 7} d } | i
} | | i 7} | | i c | i 7<| | i
c | i 7 R R R= R? R R R R R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR sT
( RN RO RP R9 t floatR R ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t Rulec B s e Z d Z d Z d Z RS( s
A :class:`Rule` node stands for a solid black rectangle; it has
*width*, *depth*, and *height* fields just as in an
:class:`Hlist`. However, if any of these dimensions is inf, the
actual value will be determined by running the rule up to the
boundary of the innermost enclosing box. This is called a "running
dimension." The width is never running in an :class:`Hlist`; the
height and depth are never running in a :class:`Vlist`.
c C s& t i | | | | | i | _ d S( N( RW R9 R^ ( R8 R: R; R< Ra ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 E s c C s% | i i | | | | | | d S( N( R^ R\ ( R8 R Rk R= R> ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRV I s ( RN RO RP R9 RV ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR ; s t Hrulec B s e Z d Z d Z RS( s8
Convenience class to create a horizontal rule.
c C sL | i i | i | i | i } | d } } t i | t | | | d S( Ng ?( R^ R Rd Ru R R R9 R ( R8 Ra t thicknessR; R< ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 P s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR L s t Vrulec B s e Z d Z d Z RS( s6
Convenience class to create a vertical rule.
c C s> | i i | i | i | i } t i | | t t | d S( N( R^ R Rd Ru R R R9 R ( R8 Ra R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 Z s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR V s R c B s, e Z d Z e d Z d Z d Z RS( s
Most of the information in this object is stored in the underlying
:class:`GlueSpec` class, which is shared between multiple glue objects. (This
is a memory optimization which probably doesn't matter anymore, but it's
easier to stick to what TeX does.)
c C s t i | d | _ t | o t i | } n' t | t o
| } n
t d | o | i } n | | _ d S( Nt normals/ glue_type must be a glue spec name or instance.(
RO R9 t glue_subtypeR t GlueSpect factoryR t
ArgumentErrort copyR ( R8 t glue_typeR R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 f s
c C s` t i | | i t j o? | i i d j o( | i i | _ | i i t 9_ q\ n d S( Ng ( RO RT RP RX R R: R RY ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRT s s
c C sL t i | | i i d j o( | i i | _ | i i t 9_ n d S( Ng ( RO RU R R: R RZ ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU z s
( RN RO RP R R9 RT RU ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR _ s
R c B sD e Z d Z d d d d d d Z d Z d Z e e Z RS( s
See :class:`Glue`.
g i c C s1 | | _ | | _ | | _ | | _ | | _ d S( N( R: R R RT R ( R8 R: R R RT R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
c C s% t | i | i | i | i | i S( N( R R: R R RT R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s | i | S( N( t _types( t clsR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s ( RN RO RP R9 R R t classmethod( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s
i i t fili t filli t filllt neg_filt neg_fillt neg_filllt emptyg t sst Filc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t Fillc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t Filllc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t NegFilc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t NegFillc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t NegFilllc B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t SsGluec B s e Z d Z RS( c C s t i | d d S( NR ( R R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t HCenteredc B s e Z d Z d Z RS( ss
A convenience class to create an :class:`Hlist` whose contents are
centered within its enclosing box.
c C s. t i | t g | t g d t d S( NRx ( Ru R9 R R ( R8 Rm ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s #( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t VCenteredc B s e Z d Z d Z RS( sr
A convenience class to create a :class:`Vlist` whose contents are
centered within its enclosing box.
c C s( t i | t g | t g d S( N( R R9 R ( R8 Rm ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s Ry c B s2 e Z d Z d Z d Z d Z d Z RS( s
A :class:`Kern` node has a width field to specify a (normally
negative) amount of spacing. This spacing correction appears in
horizontal lists between letters like A and V when the font
designer said that it looks better to move them closer together or
further apart. A kern node can also appear in a vertical list,
when its *width* denotes additional spacing in the vertical
direction.
c C s t i | | | _ d S( N( RO R9 R: ( R8 R: ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
c C s d | i S( Ns k%.02f( R: ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s4 t i | | i t j o | i t 9_ n d S( N( RO RT RP RX R: RY ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRT s
c C s t i | | i t 9_ d S( N( RO RU R: RZ ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRU s
( RN RO RP R9 R RT RU ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyRy s
t SubSuperClusterc B s e Z d Z d Z RS( sR
:class:`SubSuperCluster` is a sort of hack to get around that fact
that this code do a two-pass parse like TeX. This lets us store
enough information in the hlist itself, namely the nucleus, sub-
and super-script, such that if another script follows that needs
to be attached, it can be reconfigured on the fly.
c C s/ d | _ d | _ d | _ t i | g d S( N( R6 t nucleust subt superRu R9 ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s ( RN RO RP R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t AutoHeightCharc B s e Z d Z e d Z RS( sG
:class:`AutoHeightChar` will create a character as close to the
given height and depth as possible. When using a font with
multiple height versions of some characters (such as the BaKoMa
fonts), the correct glyph will be selected, otherwise this will
always just return a scaled version of the glyph.
c
C s | i i | i | } | i } | | } xH | D]@ \ } } | | _ t | | }
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i |
i | j o Pq5 q5 W| |
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i } t i | |
g | | _
d S( N( R^ R Rd R R] R; R< Ru Ru R9 Rh (
R8 R R; R< Ra t alwaysR2 t target_totalR R t chart factort shift( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
( RN RO RP R R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t
AutoWidthCharc B s e Z d Z e e d Z RS( s:
:class:`AutoWidthChar` will create a character as close to the
given width as possible. When using a font with multiple width
versions of some characters (such as the BaKoMa fonts), the
correct glyph will be selected, otherwise this will always just
return a scaled version of the glyph.
c C s | i i | i | } | i } xA | D]9 \ } } | | _ | | | } | i | j o Pq+ q+ W| | i }
| i |
9_ | | | } t i | | g | i | _ d S( N( R^ R Rd R R: Ru Ru R9 ( R8 R R: Ra R t
char_classR2 R R R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
( RN RO RP R R] R9 ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s t Shipc B s> e Z d Z d Z d Z e e Z d Z d Z RS( s
Once the boxes have been set up, this sends them to output. Since
boxes can be inside of boxes inside of boxes, the main work of
:class:`Ship` is done by two mutually recursive routines,
:meth:`hlist_out` and :meth:`vlist_out`, which traverse the
:class:`Hlist` nodes and :class:`Vlist` nodes inside of horizontal
and vertical boxes. The global variables used in TeX to store
state as it processes have become member variables here.
c C sN d | _ d | _ d | _ d | _ | | _ | | i | _ | i | d S( Ni g ( t max_pusht cur_st cur_vt cur_ht off_hR; t off_vt hlist_out( R8 RB RC RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt __call__9 s c C s( | d j o d S| d j o d S| S( Ng eg eA( ( t value( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt clampB s
c C sL d } d } | i } | i } | i } | i } | i d 7_ t | i | i | _ | i } x| i D]} t | t
o: | i | i | i | i | i
| i | i 7_ qj t | t o | i | i 7_ qj t | t o t | i d j o | i | i 7_ q5| i }
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d j oD t | | _ | i | i | i | i | i
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| d j o | d j oD | i | j o0 | | i 7} t | t | i! | } qq| i" | j o0 | | i# 7} t | t | i! | } qn |
| 7}
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7_ qj qj W| i d 8_ d S( Ni g i ($ Rl Rk R R R RU R R Ri R R] RV R R R: Ry Rg R Rh Ru R t vlist_outRW R; R< R t baselineR R R R t roundR Rj R RT ( R8 RK t cur_gt cur_glueRl Rk t base_linet left_edgeR R t edget rule_heightt
rule_deptht
rule_widthR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR J sn
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c C s3 d } d } | i } | i } | i d 7_ t | i | i | _ | i } | i | i 8_ | i } | i } x| i D]} t
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| t" o t# d q| q| W| i d 8_ d S( Ni g i s1 Internal mathtext error: Char node found in vlist($ Rl Rk R RU R R R R; R Ri R Ry R: Rg R R< Rh Ru R R RW R RV R R R R R R R R Rj R RT R] R ( R8 RK R R Rl Rk R t top_edgeR R t save_vR R R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR sl
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( RN RO RP R R t staticmethodR R ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR / s ?c s) f d } t } | i | | S( s.
Helper class to raise parser errors.
c s t d | d S( Ns
( R ( R t loct toks( t msg( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt raise_error s ( R t setParseAction( R R R ( ( R s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt Error s
t Parserc B s e Z d Z e d i Z e d i Z e d i Z e e Be BZ e d i Z e d i Z
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Z d Z d Z d e f d YZ d Z d Z d Z d Z d Z d Z d Z h d d 6d d 6d d 6d d 6d! d" 6d# d$ 6d d% 6Z d& Z d' Z d( Z! h d[ d] d. f d/ 6Z# d0 Z$ h d1 d2 6d3 d4 6d5 d6 6d7 d8 6d9 d: 6d; d< 6d= d> 6d? d@ 6dA dB 6d; dC 6d7 dD 6d9 dE 6d= dF 6d? dG 6d1 dH 6dI dJ 6dK dL 6Z% e dM i Z& dN Z' dO Z( dP Z) dQ Z* dR Z+ dS Z, dT Z- dU Z. dV Z/ dW Z0 dX Z1 dY Z2 dZ Z3 RS(^ s
This is the pyparsing-based parser for math expressions. It
actually parses full strings *containing* math expressions, in
that raw text may also appear outside of pairs of ``$``.
The grammar is based directly on that in TeX, though it cuts a few
corners.
s
+ *
\pm \sqcap \rhd
\mp \sqcup \unlhd
\times \vee \unrhd
\div \wedge \oplus
\ast \setminus \ominus
\star \wr \otimes
\circ \diamond \oslash
\bullet \bigtriangleup \odot
\cdot \bigtriangledown \bigcirc
\cap \triangleleft \dagger
\cup \triangleright \ddagger
\uplus \lhd \amalgsc
= < > :
\leq \geq \equiv \models
\prec \succ \sim \perp
\preceq \succeq \simeq \mid
\ll \gg \asymp \parallel
\subset \supset \approx \bowtie
\subseteq \supseteq \cong \Join
\sqsubset \sqsupset \neq \smile
\sqsubseteq \sqsupseteq \doteq \frown
\in \ni \propto
\vdash \dashv \dotss
\leftarrow \longleftarrow \uparrow
\Leftarrow \Longleftarrow \Uparrow
\rightarrow \longrightarrow \downarrow
\Rightarrow \Longrightarrow \Downarrow
\leftrightarrow \longleftrightarrow \updownarrow
\Leftrightarrow \Longleftrightarrow \Updownarrow
\mapsto \longmapsto \nearrow
\hookleftarrow \hookrightarrow \searrow
\leftharpoonup \rightharpoonup \swarrow
\leftharpoondown \rightharpoondown \nwarrow
\rightleftharpoons \leadstos , ; . ! \ldotp \cdotps}
\sum \prod \coprod \bigcap \bigcup \bigsqcup \bigvee
\bigwedge \bigodot \bigotimes \bigoplus \biguplus
s lim liminf limsup sup max mins
\int \oints6 rm cal it tt sf bf default bb frak circled scr regulars
arccos csc ker min arcsin deg lg Pr arctan det lim sec arg dim
liminf sin cos exp limsup sinh cosh gcd ln sup cot hom log tan
coth inf max tanhsb
| \| / \backslash \uparrow \downarrow \updownarrow \Uparrow
\Downarrow \Updownarrow .s ( [ { < \lfloor \langle \lceils ) ] } > \rfloor \rangle \rceilc " C s t i | i i d } t } t i | i i d } t i d } t i d } t i | i } t i | i i d | _ t d } t d i
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t t | i } t t | i } t g } | i D] } | d
| qt~ } t | t d d d
d d d d g i | i i d } t d | | | t d Bi | i i d } d } t d | t | t t i t t d Bi | i i } t | t | i i i | i } t! t | |
| i | i" i d }
t | | i | i# i d } t! |
t$ | | A | i | i% i d } | t | | >| t | | >t! t t d | | t d B i | i& i d } t! t t d t t t d t d! t t d" d# d | t d$ B i | i( i d% } | | | | BA|
A| A| A| A>| | | B| B| B>t d& d' g } | t! t | t) | | | B >t t | i* } t t | i+ } t t | i, } | t t d( | | Bt d) Bt! | t) | A t t d* | | Bt d) B>t) | | A i | i- i d
} | t d+ } t d, i | i. i d- i }! | i |! t$ t | t | t | t d. B|! t/ >| i0 d S(/ NRd t subsupert placeablet simplet finishs [-+]?([0-9]+\.?[0-9]*|\.[0-9]+)R R s \t maths \ s \/s \,s \;s \quads \qquads \!t spaces \hspaces Expected \hspace{n}t customspaceu -u8 ([a-zA-Z0-9 +\-*/<>=:,.;!'@()\[\]|%s])|(\\[%%${}\[\]_|])s [^a-zA-Z]t accentt functiont groups \fracs Expected \frac{num}{den}t fracs \sqrtR s [0-9]+R R s Expected \sqrt{value}t sqrtt _t ^s \lefts Expected a delimiters \rightt $s (?:(?:\\[$])|[^$])*t non_maths Expected end of math '$'(1 R
R Rd t setNamet subsuperscriptt auto_sized_delimiterR t _expressionR R t suppressR t start_groupR t end_groupR t _accent_mapt keyst listt
_wide_accentst _function_namest
_fontnamesR R R R R R& R2 t leaveWhitespaceR t _char_over_charst char_over_charsR R R R
R R R6 R R t
_ambiDelimt
_leftDelimt _rightDelimR R R t clear(" R8 Rd t latexfontR R R t autoDelimR t lbracet rbraceR R t bslashR R R R R t latex2efontR R t
unicode_rangeR2 t c_over_cR R R t
subsuperopt ambiDelimt leftDelimt
rightDelimR t
math_delimR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 " s ! .
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/ c C s d | _ d | _ h | _ d S( s1
Clear any state before parsing.
N( R6 t _exprt _state_stackt _em_width_cache( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s | i | d d | | g | _ y | i i | WnN t j
oB } t d i d | i d | i d d t | g n X| i
S( s
Parse expression *s* using the given *fonts_object* for
output, at the given *fontsize* and *dpi*.
Returns the parse tree of :class:`Node` instances.
R R s
t Rb i R ( t StateR R t parseStringR R1 RC t linet columnR R ( R8 R R7 Ru R t err( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt parse s ! R c B sA e Z d Z d Z d Z d Z d Z e e e Z RS( s
Stores the state of the parser.
States are pushed and popped from a stack as necessary, and
the "current" state is always at the top of the stack.
c C s1 | | _ | | _ | | _ | | _ | | _ d S( N( R^ t _fontR Ru R ( R8 R^ Rd R Ru R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9 s
c C s( t i | i | i | i | i | i S( N( R R R^ Rd R Ru R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s | i S( N( R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s' | d j o
| | _ n | | _ d S( NR R R ( s rms its bf( R R ( R8 R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt _set_font s
( RN RO RP R9 R R R t propertyRd ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s | i d S( s?
Get the current :class:`State` of the parser.
i( R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt get_state s c C s | i i d S( s8
Pop a :class:`State` off of the stack.
N( R t pop( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt pop_state s c C s | i i | i i d S( sm
Push a new :class:`State` onto the stack which is just a copy
of the current state.
N( R R} R R ( R8 ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt
push_state
s c C s t | | _ | i g S( N( Ru R ( R8 R R R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s c C s t | } | i | g S( N( Ru R ( R8 R R R t hlist( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s
c C sv | d i d d } g } | D] } | t | | i q! ~ } t | } | i t d | i _ | g S( Ni s \$R s mathtext.default( t replaceR] R Ru R R* Rd ( R8 R R R R R t symbolsR ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s 0
c C s | i } | i | i | i f } | i i | } | d j oE | i i | i t d d | i | i } | i
} | | i | R@ RB R R R R R R9 R R t objectR R R R R R R R R R R R2 R6 R R R R R R R R R Rd RA RC Rd R R R R ( ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR s
%
y " -t MathTextParserc B s e Z d Z h e d 6e d 6e d 6e d 6e d 6e d 6e d 6Z
h e d 6e d 6e
d 6e d
6Z d Z d d d
Z d d d Z d d d d Z d d d d Z d d d Z RS( t bitmapt aggRx t pdft svgt cairot macosxt cmt stixt stixsanst customc C s" | i | _ t d | _ d S( sI
Create a MathTextParser for the given backend *output*.
i2 N( R t _outputR t _cache( R8 t output( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR9
s iH c C s | d j o
t } n | | t | f } | i i | } | d j o | S| i d j o t d o t | } nb | i | i } t d } | i i | i
} | d j o | | | } n
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i | i d | i _ d | _ | S( s
Parse the given math expression *s* at the given *dpi*. If
*prop* is provided, it is a
:class:`~matplotlib.font_manager.FontProperties` object
specifying the "default" font to use in the math expression,
used for all non-math text.
The results are cached, so multiple calls to :meth:`parse`
with the same expression should be fast.
Rx s ps.useafms mathtext.fontsetsE mathtext.fontset must be either 'cm', 'stix', 'stixsans', or 'custom'N( R6 R# t hashRu R Rt R* R5 t _backend_mappingt _font_type_mappingR R1 t get_size_in_pointst _parserR RR R R@ R: R; R< RL R R Ra R7 ( R8 R R R t cacheKeyR R^ t backendt fontsett
fontset_classRu RK ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyR
s6
ix i c C s] | i d j p t t d | } | i | d | d | \ } } | i } | | f S( s
*texstr*
A valid mathtext string, eg r'IQ: $\sigma_i=15$'
*dpi*
The dots-per-inch to render the text
*fontsize*
The font size in points
Returns a tuple (*array*, *depth*)
- *array* is an NxM uint8 alpha ubyte mask array of
rasterized tex.
- depth is the offset of the baseline from the bottom of the
image in pixels.
Rj RP R R ( Rt R_ R# R t as_array( R8 t texstrR Ru R t ftimageR< R ( ( s9 /usr/lib64/python2.6/site-packages/matplotlib/mathtext.pyt to_mask s
! t blackc C s | i | d | d | \ } } t i i | \ } } } t i | i d | i d d f d t i }
t d | |
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