Consolidate wcwidth-related utils in one module

tests/test_utils.py

@@ -1,5 +1,4 @@
-from toot import utils
+from toot.wcstring import wc_wrap, trunc, pad, fit_text
-from toot.wcstring import wc_wrap
 
 
 def test_pad():
@@ -8,72 +7,72 @@ def test_pad():
     text = 'Frank Zappa 🎸'
 
     # Negative values are basically ignored
-    assert utils.pad(text, -100) is text
+    assert pad(text, -100) is text
 
     # Padding to length smaller than text length does nothing
-    assert utils.pad(text, 11) is text
+    assert pad(text, 11) is text
-    assert utils.pad(text, 12) is text
+    assert pad(text, 12) is text
-    assert utils.pad(text, 13) is text
+    assert pad(text, 13) is text
-    assert utils.pad(text, 14) is text
+    assert pad(text, 14) is text
 
-    assert utils.pad(text, 15) == 'Frank Zappa 🎸 '
+    assert pad(text, 15) == 'Frank Zappa 🎸 '
-    assert utils.pad(text, 16) == 'Frank Zappa 🎸  '
+    assert pad(text, 16) == 'Frank Zappa 🎸  '
-    assert utils.pad(text, 17) == 'Frank Zappa 🎸   '
+    assert pad(text, 17) == 'Frank Zappa 🎸   '
-    assert utils.pad(text, 18) == 'Frank Zappa 🎸    '
+    assert pad(text, 18) == 'Frank Zappa 🎸    '
-    assert utils.pad(text, 19) == 'Frank Zappa 🎸     '
+    assert pad(text, 19) == 'Frank Zappa 🎸     '
-    assert utils.pad(text, 20) == 'Frank Zappa 🎸      '
+    assert pad(text, 20) == 'Frank Zappa 🎸      '
 
 
 def test_trunc():
     text = 'Frank Zappa 🎸'
 
-    assert utils.trunc(text, 1)  == '…'
+    assert trunc(text, 1)  == '…'
-    assert utils.trunc(text, 2)  == 'F…'
+    assert trunc(text, 2)  == 'F…'
-    assert utils.trunc(text, 3)  == 'Fr…'
+    assert trunc(text, 3)  == 'Fr…'
-    assert utils.trunc(text, 4)  == 'Fra…'
+    assert trunc(text, 4)  == 'Fra…'
-    assert utils.trunc(text, 5)  == 'Fran…'
+    assert trunc(text, 5)  == 'Fran…'
-    assert utils.trunc(text, 6)  == 'Frank…'
+    assert trunc(text, 6)  == 'Frank…'
-    assert utils.trunc(text, 7)  == 'Frank…'
+    assert trunc(text, 7)  == 'Frank…'
-    assert utils.trunc(text, 8)  == 'Frank Z…'
+    assert trunc(text, 8)  == 'Frank Z…'
-    assert utils.trunc(text, 9)  == 'Frank Za…'
+    assert trunc(text, 9)  == 'Frank Za…'
-    assert utils.trunc(text, 10) == 'Frank Zap…'
+    assert trunc(text, 10) == 'Frank Zap…'
-    assert utils.trunc(text, 11) == 'Frank Zapp…'
+    assert trunc(text, 11) == 'Frank Zapp…'
-    assert utils.trunc(text, 12) == 'Frank Zappa…'
+    assert trunc(text, 12) == 'Frank Zappa…'
-    assert utils.trunc(text, 13) == 'Frank Zappa…'
+    assert trunc(text, 13) == 'Frank Zappa…'
 
     # Truncating to length larger than text length does nothing
-    assert utils.trunc(text, 14) is text
+    assert trunc(text, 14) is text
-    assert utils.trunc(text, 15) is text
+    assert trunc(text, 15) is text
-    assert utils.trunc(text, 16) is text
+    assert trunc(text, 16) is text
-    assert utils.trunc(text, 17) is text
+    assert trunc(text, 17) is text
-    assert utils.trunc(text, 18) is text
+    assert trunc(text, 18) is text
-    assert utils.trunc(text, 19) is text
+    assert trunc(text, 19) is text
-    assert utils.trunc(text, 20) is text
+    assert trunc(text, 20) is text
 
 
 def test_fit_text():
     text = 'Frank Zappa 🎸'
 
-    assert utils.fit_text(text, 1)  == '…'
+    assert fit_text(text, 1)  == '…'
-    assert utils.fit_text(text, 2)  == 'F…'
+    assert fit_text(text, 2)  == 'F…'
-    assert utils.fit_text(text, 3)  == 'Fr…'
+    assert fit_text(text, 3)  == 'Fr…'
-    assert utils.fit_text(text, 4)  == 'Fra…'
+    assert fit_text(text, 4)  == 'Fra…'
-    assert utils.fit_text(text, 5)  == 'Fran…'
+    assert fit_text(text, 5)  == 'Fran…'
-    assert utils.fit_text(text, 6)  == 'Frank…'
+    assert fit_text(text, 6)  == 'Frank…'
-    assert utils.fit_text(text, 7)  == 'Frank…'
+    assert fit_text(text, 7)  == 'Frank…'
-    assert utils.fit_text(text, 8)  == 'Frank Z…'
+    assert fit_text(text, 8)  == 'Frank Z…'
-    assert utils.fit_text(text, 9)  == 'Frank Za…'
+    assert fit_text(text, 9)  == 'Frank Za…'
-    assert utils.fit_text(text, 10) == 'Frank Zap…'
+    assert fit_text(text, 10) == 'Frank Zap…'
-    assert utils.fit_text(text, 11) == 'Frank Zapp…'
+    assert fit_text(text, 11) == 'Frank Zapp…'
-    assert utils.fit_text(text, 12) == 'Frank Zappa…'
+    assert fit_text(text, 12) == 'Frank Zappa…'
-    assert utils.fit_text(text, 13) == 'Frank Zappa…'
+    assert fit_text(text, 13) == 'Frank Zappa…'
-    assert utils.fit_text(text, 14) == 'Frank Zappa 🎸'
+    assert fit_text(text, 14) == 'Frank Zappa 🎸'
-    assert utils.fit_text(text, 15) == 'Frank Zappa 🎸 '
+    assert fit_text(text, 15) == 'Frank Zappa 🎸 '
-    assert utils.fit_text(text, 16) == 'Frank Zappa 🎸  '
+    assert fit_text(text, 16) == 'Frank Zappa 🎸  '
-    assert utils.fit_text(text, 17) == 'Frank Zappa 🎸   '
+    assert fit_text(text, 17) == 'Frank Zappa 🎸   '
-    assert utils.fit_text(text, 18) == 'Frank Zappa 🎸    '
+    assert fit_text(text, 18) == 'Frank Zappa 🎸    '
-    assert utils.fit_text(text, 19) == 'Frank Zappa 🎸     '
+    assert fit_text(text, 19) == 'Frank Zappa 🎸     '
-    assert utils.fit_text(text, 20) == 'Frank Zappa 🎸      '
+    assert fit_text(text, 20) == 'Frank Zappa 🎸      '
 
 
 def test_wc_wrap_plain_text():

toot/utils.py

@@ -7,7 +7,6 @@ import unicodedata
 import warnings
 
 from bs4 import BeautifulSoup
-from wcwidth import wcwidth, wcswidth
 
 from toot.exceptions import ConsoleError
 
@@ -76,61 +75,6 @@ def assert_domain_exists(domain):
         raise ConsoleError("Domain {} not found".format(domain))
 
 
-def trunc(text, length):
-    """
-    Truncates text to given length, taking into account wide characters.
-
-    If truncated, the last char is replaced by an elipsis.
-    """
-    if length < 1:
-        raise ValueError("length should be 1 or larger")
-
-    # Remove whitespace first so no unneccesary truncation is done.
-    text = text.strip()
-    text_length = wcswidth(text)
-
-    if text_length <= length:
-        return text
-
-    # We cannot just remove n characters from the end since we don't know how
-    # wide these characters are and how it will affect text length.
-    # Use wcwidth to determine how many characters need to be truncated.
-    chars_to_truncate = 0
-    trunc_length = 0
-    for char in reversed(text):
-        chars_to_truncate += 1
-        trunc_length += wcwidth(char)
-        if text_length - trunc_length <= length:
-            break
-
-    # Additional char to make room for elipsis
-    n = chars_to_truncate + 1
-    return text[:-n].strip() + '…'
-
-
-def pad(text, length):
-    """Pads text to given length, taking into account wide characters."""
-    text_length = wcswidth(text)
-
-    if text_length < length:
-        return text + ' ' * (length - text_length)
-
-    return text
-
-
-def fit_text(text, length):
-    """Makes text fit the given length by padding or truncating it."""
-    text_length = wcswidth(text)
-
-    if text_length > length:
-        return trunc(text, length)
-
-    if text_length < length:
-        return pad(text, length)
-
-    return text
-
-
 EOF_KEY = "Ctrl-Z" if os.name == 'nt' else "Ctrl-D"
 
 

toot/wcstring.py

@@ -64,3 +64,58 @@ def wc_wrap(text, length):
             yield line
         else:
             yield from _wc_hard_wrap(line, length)
+
+
+def trunc(text, length):
+    """
+    Truncates text to given length, taking into account wide characters.
+
+    If truncated, the last char is replaced by an elipsis.
+    """
+    if length < 1:
+        raise ValueError("length should be 1 or larger")
+
+    # Remove whitespace first so no unneccesary truncation is done.
+    text = text.strip()
+    text_length = wcswidth(text)
+
+    if text_length <= length:
+        return text
+
+    # We cannot just remove n characters from the end since we don't know how
+    # wide these characters are and how it will affect text length.
+    # Use wcwidth to determine how many characters need to be truncated.
+    chars_to_truncate = 0
+    trunc_length = 0
+    for char in reversed(text):
+        chars_to_truncate += 1
+        trunc_length += wcwidth(char)
+        if text_length - trunc_length <= length:
+            break
+
+    # Additional char to make room for elipsis
+    n = chars_to_truncate + 1
+    return text[:-n].strip() + '…'
+
+
+def pad(text, length):
+    """Pads text to given length, taking into account wide characters."""
+    text_length = wcswidth(text)
+
+    if text_length < length:
+        return text + ' ' * (length - text_length)
+
+    return text
+
+
+def fit_text(text, length):
+    """Makes text fit the given length by padding or truncating it."""
+    text_length = wcswidth(text)
+
+    if text_length > length:
+        return trunc(text, length)
+
+    if text_length < length:
+        return pad(text, length)
+
+    return text