[misc-] replace len() by dispwidth()

In cliptext, ddwplay, cmdpalette, form, sheets, and statusbar.

visidata/cliptext.py

@@ -310,6 +310,7 @@ def wraptext(text, width=80, indent=''):
         line = _markdown_to_internal(line)
         chunks = re.split(internal_markup_re, line)
         textchunks = [x for x in chunks if not is_vdcode(x)]
+        # textwrap.wrap does not handle variable-width characters  #2416
         for linenum, textline in enumerate(textwrap.wrap(''.join(textchunks), width=width, drop_whitespace=False)):
             txt = textline
             r = ''
@@ -345,7 +346,7 @@ def clipbox(scr, lines, attr, title=''):
     for i, line in enumerate(lines):
         clipdraw(scr, i+1, 2, line, attr)
 
-    clipdraw(scr, 0, w-len(title)-6, f"| {title} |", attr)
+    clipdraw(scr, 0, w-dispwidth(title)-6, f"| {title} |", attr)
 
 
 vd.addGlobals(clipstr=clipstr,

visidata/ddwplay.py

@@ -1,7 +1,7 @@
 from collections import defaultdict
 import json
 import time
-from visidata import colors, vd, clipdraw, ColorAttr
+from visidata import colors, vd, clipdraw, ColorAttr, dispwidth
 
 __all__ = ['Animation', 'AnimationMgr']
 

visidata/features/cmdpalette.py

@@ -1,6 +1,6 @@
 import collections
 from functools import partial
-from visidata import DrawablePane, BaseSheet, vd, VisiData, CompleteKey, clipdraw, HelpSheet, colors, AcceptInput, AttrDict, drawcache_property
+from visidata import DrawablePane, BaseSheet, vd, VisiData, CompleteKey, clipdraw, HelpSheet, colors, AcceptInput, AttrDict, drawcache_property, dispwidth
 
 
 vd.theme_option('color_cmdpalette', 'black on 72', 'base color of command palette')
@@ -180,7 +180,7 @@ def _fmt_cmdpal_summary(match, row, trigger_key):
         formatted_name = f'[:bold][:onclick {row.longname}]{formatted_longname}[/][/]'
         if vd.options.debug and match:
             keystrokes = f'[{match.score}]'
-        r = f' [:keystrokes]{keystrokes.rjust(len(prompt)-5)}[/]  '
+        r = f' [:keystrokes]{keystrokes.rjust(dispwidth(prompt)-5)}[/]  '
         if trigger_key:
             r += f'[:keystrokes]{trigger_key}[/]'
         else:

visidata/form.py

@@ -40,7 +40,7 @@ def draw(self, scr):
                 continue
             x, y = r.x, r.y
             if isinstance(y, float) and (0 < y < 1) or (-1 < y < 0): y = h*y
-            if isinstance(x, float) and (0 < x < 1) or (-1 < x < 0): x = w*x-(len(r.text)/2)
+            if isinstance(x, float) and (0 < x < 1) or (-1 < x < 0): x = w*x-(dispwidth(r.text)/2)
             x = int(x)
             y = int(y)
             if y < 0: y += h
@@ -61,7 +61,7 @@ def run(self, scr):
         vd.setWindows(vd.scrFull)
         drawnrows = [r for r in self.source.rows if r.text]
         inputs = [r for r in self.source.rows if r.input]
-        maxw = max(int(r.x)+len(r.text) for r in drawnrows)
+        maxw = max(int(r.x)+dispwidth(r.text) for r in drawnrows)
         maxh = max(int(r.y) for r in drawnrows)
         h, w = vd.scrFull.getmaxyx()
         y, x = max(0, (h-maxh)//2-1), max(0, (w-maxw)//2-1)

visidata/sheets.py

@@ -741,7 +741,7 @@ def drawColHeader(self, scr, y, h, vcolidx):
                 clipdraw(scr, y+i, x, name, hdrcattr, w=colwidth)
             vd.onMouse(scr, x, y+i, colwidth, 1, BUTTON3_RELEASED='rename-col')
 
-            if C and x+colwidth+len(C) < self.windowWidth and y+i < self.windowHeight:
+            if C and x+colwidth+dispwidth(C) < self.windowWidth and y+i < self.windowHeight:
                 scr.addstr(y+i, x+colwidth, C, sepcattr.attr)
 
         clipdraw(scr, y+h-1, min(x+colwidth, self.windowWidth-1)-dispwidth(T), T, hdrcattr)

visidata/statusbar.py

@@ -32,7 +32,7 @@
 BaseSheet.init('longname', lambda: '')
 
 def fitWithin(s, n=10):
-    if len(s) > n:
+    if dispwidth(s) > n:
         return s[:n//2-1] + '…' + s[-n//2+1:]
     return s