Add boldsymbol functionalities

devRD · devRD · commit 5b270645fad3 · 2023-06-12T19:09:28.000+05:30
diff --git a/lib/matplotlib/_mathtext.py b/lib/matplotlib/_mathtext.py
@@ -2607,11 +2607,22 @@ def auto_delim(self, s, loc, toks):
     def boldsymbol(self, s, loc, toks):
         self.push_state()
         state = self.get_state()
+        lw = list(map(chr, range(ord('a'), ord('z') + 1)))
+        up = list(map(chr, range(ord('A'), ord('Z') + 1)))
+        smGreek = list(map(lambda a: unicodedata.name(chr(a))
+                           .split()[-1]
+                           .lower(),
+                           range(ord('\N{GREEK SMALL LETTER ALPHA}'),
+                                 ord('\N{GREEK SMALL LETTER OMEGA}') + 1)))
+        allLatin = [*lw, *up]
         hlist = []
         name = toks["value"]
         for c in name:
             if isinstance(c, Char):
-                c.font = "bsym"
+                c.font = "bf"
+                if str(c)[1] in allLatin or str(c)[2:-1] in smGreek:
+                    c.font = "bfit"
+                    c._update_metrics()
                 c._update_metrics()
                 hlist.append(c)
             else:
diff --git a/lib/matplotlib/_mathtext_data.py b/lib/matplotlib/_mathtext_data.py
@@ -1270,15 +1270,6 @@
         (0x0041, 0x005a, 'rm', 0x1d670), # A-Z
         (0x0061, 0x007a, 'rm', 0x1d68a)  # a-z
         ],
-    'bsym':
-        [
-        (0x0030, 0x0039, 'bf', 0x1d7ec), # 0-9
-        (0x0041, 0x005a, 'bfit', 0x1d63c), # A-Z
-        (0x0061, 0x007a, 'bfit', 0x1d656), # a-z
-        (0x0393, 0x03a9, 'bf', 0x1d758), # \Gamma-Omega
-        (0x2207, 0x2207, 'bf', 0x1d76f), # \Nabla
-        (0x03b1, 0x03c9, 'bf', 0x1d770), # \alpha-\omega
-        ],
     }
 
 
diff --git a/lib/matplotlib/tests/baseline_images/test_mathtext/mathtext1_dejavusans_05.png b/lib/matplotlib/tests/baseline_images/test_mathtext/mathtext1_dejavusans_05.png
diff --git a/lib/matplotlib/tests/test_mathtext.py b/lib/matplotlib/tests/test_mathtext.py
@@ -134,7 +134,7 @@
     r'$\sum x\quad\sum^nx\quad\sum_nx\quad\sum_n^nx\quad\prod x\quad\prod^nx\quad\prod_nx\quad\prod_n^nx$',  # GitHub issue 18085
     r'$1.$ $2.$ $19680801.$ $a.$ $b.$ $mpl.$',
     r'$\text{text}_{\text{sub}}^{\text{sup}} + \text{\$foo\$} + \frac{\text{num}}{\mathbf{\text{den}}}\text{with space, curly brackets \{\}, and dash -}$',
-    r'$\boldsymbol{abcde} \boldsymbol{\Gamma + \Omega} \boldsymbol{01234} \boldsymbol{\alpha * \beta}$',
+    r'$\boldsymbol{abcde} \boldsymbol{+} \boldsymbol{\Gamma + \Omega} \boldsymbol{01234} \boldsymbol{\alpha * \beta}$',
 ]
 
 digits = "0123456789"

Original file line number	Diff line number	Diff line change
`@@ -134,7 +134,7 @@`
`134`	`134`	`r'$\sum x\quad\sum^nx\quad\sum_nx\quad\sum_n^nx\quad\prod x\quad\prod^nx\quad\prod_nx\quad\prod_n^nx$', # GitHub issue 18085`
`135`	`135`	`r'$1.$ $2.$ $19680801.$ $a.$ $b.$ $mpl.$',`
`136`	`136`	`r'$\text{text}_{\text{sub}}^{\text{sup}} + \text{\$foo\$} + \frac{\text{num}}{\mathbf{\text{den}}}\text{with space, curly brackets \{\}, and dash -}$',`
`137`		`- r'$\boldsymbol{abcde} \boldsymbol{\Gamma + \Omega} \boldsymbol{01234} \boldsymbol{\alpha * \beta}$',`
	`137`	`+ r'$\boldsymbol{abcde} \boldsymbol{+} \boldsymbol{\Gamma + \Omega} \boldsymbol{01234} \boldsymbol{\alpha * \beta}$',`
`138`	`138`	`]`
`139`	`139`
`140`	`140`	`digits = "0123456789"`