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##############################################################################
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# FONTS
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- def get_unicode_index (symbol ):
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- """get_unicode_index(symbol) -> integer
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+ def get_unicode_index (symbol , math = True ):
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+ """get_unicode_index(symbol, [bool] ) -> integer
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Return the integer index (from the Unicode table) of symbol. *symbol*
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can be a single unicode character, a TeX command (i.e. r'\pi'), or a
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Type1 symbol name (i.e. 'phi').
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+ If math is False, the current symbol should be treated as a non-math symbol.
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"""
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+ # for a non-math symbol, simply return its unicode index
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+ if not math :
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+ return ord (symbol )
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# From UTF #25: U+2212 minus sign is the preferred
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# representation of the unary and binary minus sign rather than
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# the ASCII-derived U+002D hyphen-minus, because minus sign is
@@ -438,7 +442,7 @@ def get_kern(self, font1, fontclass1, sym1, fontsize1,
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"""
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return 0.
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- def get_metrics (self , font , font_class , sym , fontsize , dpi ):
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+ def get_metrics (self , font , font_class , sym , fontsize , dpi , math = True ):
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"""
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*font*: one of the TeX font names::
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@@ -452,6 +456,8 @@ def get_metrics(self, font, font_class, sym, fontsize, dpi):
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*dpi*: current dots-per-inch
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+ *math*: whether sym is a math character
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+
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Returns an object with the following attributes:
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- *advance*: The advance distance (in points) of the glyph.
@@ -466,7 +472,7 @@ def get_metrics(self, font, font_class, sym, fontsize, dpi):
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the glyph. This corresponds to TeX's definition of
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"height".
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"""
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- info = self ._get_info (font , font_class , sym , fontsize , dpi )
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+ info = self ._get_info (font , font_class , sym , fontsize , dpi , math )
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return info .metrics
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def set_canvas_size (self , w , h , d ):
@@ -582,14 +588,14 @@ def _get_offset(self, font, glyph, fontsize, dpi):
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return ((glyph .height / 64.0 / 2.0 ) + (fontsize / 3.0 * dpi / 72.0 ))
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return 0.
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- def _get_info (self , fontname , font_class , sym , fontsize , dpi ):
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+ def _get_info (self , fontname , font_class , sym , fontsize , dpi , math = True ):
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key = fontname , font_class , sym , fontsize , dpi
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bunch = self .glyphd .get (key )
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if bunch is not None :
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return bunch
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font , num , symbol_name , fontsize , slanted = \
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- self ._get_glyph (fontname , font_class , sym , fontsize )
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+ self ._get_glyph (fontname , font_class , sym , fontsize , math )
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font .set_size (fontsize , dpi )
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glyph = font .load_char (
@@ -679,7 +685,7 @@ def __init__(self, *args, **kwargs):
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_slanted_symbols = set (r"\int \oint" .split ())
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- def _get_glyph (self , fontname , font_class , sym , fontsize ):
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+ def _get_glyph (self , fontname , font_class , sym , fontsize , math = True ):
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symbol_name = None
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font = None
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if fontname in self .fontmap and sym in latex_to_bakoma :
@@ -699,7 +705,7 @@ def _get_glyph(self, fontname, font_class, sym, fontsize):
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if symbol_name is None :
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return self ._stix_fallback ._get_glyph (
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- fontname , font_class , sym , fontsize )
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+ fontname , font_class , sym , fontsize , math )
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return font , num , symbol_name , fontsize , slanted
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@@ -796,7 +802,7 @@ def __init__(self, *args, **kwargs):
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def _map_virtual_font (self , fontname , font_class , uniindex ):
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return fontname , uniindex
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- def _get_glyph (self , fontname , font_class , sym , fontsize ):
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+ def _get_glyph (self , fontname , font_class , sym , fontsize , math = True ):
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found_symbol = False
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if self .use_cmex :
@@ -807,7 +813,7 @@ def _get_glyph(self, fontname, font_class, sym, fontsize):
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if not found_symbol :
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try :
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- uniindex = get_unicode_index (sym )
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+ uniindex = get_unicode_index (sym , math )
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found_symbol = True
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except ValueError :
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uniindex = ord ('?' )
@@ -900,11 +906,11 @@ def __init__(self, *args, **kwargs):
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self .fontmap [key ] = fullpath
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self .fontmap [name ] = fullpath
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- def _get_glyph (self , fontname , font_class , sym , fontsize ):
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+ def _get_glyph (self , fontname , font_class , sym , fontsize , math = True ):
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""" Override prime symbol to use Bakoma """
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if sym == r'\prime' :
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return self .bakoma ._get_glyph (fontname ,
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- font_class , sym , fontsize )
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+ font_class , sym , fontsize , math )
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else :
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# check whether the glyph is available in the display font
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uniindex = get_unicode_index (sym )
@@ -913,10 +919,10 @@ def _get_glyph(self, fontname, font_class, sym, fontsize):
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glyphindex = font .get_char_index (uniindex )
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if glyphindex != 0 :
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return super (DejaVuFonts , self )._get_glyph ('ex' ,
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- font_class , sym , fontsize )
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+ font_class , sym , fontsize , math )
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# otherwise return regular glyph
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return super (DejaVuFonts , self )._get_glyph (fontname ,
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- font_class , sym , fontsize )
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+ font_class , sym , fontsize , math )
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class DejaVuSerifFonts (DejaVuFonts ):
@@ -1124,7 +1130,7 @@ def _get_font(self, font):
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self .fonts [cached_font .get_fontname ()] = cached_font
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return cached_font
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- def _get_info (self , fontname , font_class , sym , fontsize , dpi ):
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+ def _get_info (self , fontname , font_class , sym , fontsize , dpi , math = True ):
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'load the cmfont, metrics and glyph with caching'
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key = fontname , sym , fontsize , dpi
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tup = self .glyphd .get (key )
@@ -1450,14 +1456,15 @@ class Char(Node):
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from width) must be converted into a :class:`Kern` node when the
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:class:`Char` is added to its parent :class:`Hlist`.
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"""
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- def __init__ (self , c , state ):
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+ def __init__ (self , c , state , math = True ):
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Node .__init__ (self )
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self .c = c
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self .font_output = state .font_output
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self .font = state .font
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self .font_class = state .font_class
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self .fontsize = state .fontsize
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self .dpi = state .dpi
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+ self .math = math
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# The real width, height and depth will be set during the
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# pack phase, after we know the real fontsize
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self ._update_metrics ()
@@ -1467,7 +1474,7 @@ def __internal_repr__(self):
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def _update_metrics (self ):
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metrics = self ._metrics = self .font_output .get_metrics (
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- self .font , self .font_class , self .c , self .fontsize , self .dpi )
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+ self .font , self .font_class , self .c , self .fontsize , self .dpi , self . math )
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if self .c == ' ' :
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self .width = metrics .advance
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else :
@@ -2589,7 +2596,7 @@ def math(self, s, loc, toks):
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def non_math (self , s , loc , toks ):
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#~ print "non_math", toks
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s = toks [0 ].replace (r'\$' , '$' )
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- symbols = [Char (c , self .get_state ()) for c in s ]
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+ symbols = [Char (c , self .get_state (), math = False ) for c in s ]
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hlist = Hlist (symbols )
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# We're going into math now, so set font to 'it'
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self .push_state ()
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