remove accents and keep under dots in python

  • Last Update :
  • Techknowledgy :

I'll show you what I mean. First, let's look at individual code points the example text you provided above:

>>> from pprint
import pprint
   >>>
   import unicodedata >>>
   text = 'ọmọàbúròẹlẹ́wà' >>>
   pprint([unicodedata.name(c) for c in text])['LATIN SMALL LETTER O WITH DOT BELOW',
      'LATIN SMALL LETTER M',
      'LATIN SMALL LETTER O WITH DOT BELOW',
      'LATIN SMALL LETTER A WITH GRAVE',
      'LATIN SMALL LETTER B',
      'LATIN SMALL LETTER U WITH ACUTE',
      'LATIN SMALL LETTER R',
      'LATIN SMALL LETTER O WITH GRAVE',
      'LATIN SMALL LETTER E WITH DOT BELOW',
      'LATIN SMALL LETTER L',
      'LATIN SMALL LETTER E WITH ACUTE',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER W',
      'LATIN SMALL LETTER A WITH GRAVE']

As you can see, one of the characters is already partially decomposed (the one with the separate "COMBINING DOT BELOW"). Now let's look at it fully decomposed:

>>> text = unicodedata.normalize('NFD', text) >>>
   pprint([unicodedata.name(c) for c in text])['LATIN SMALL LETTER O',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER M',
      'LATIN SMALL LETTER O',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER A',
      'COMBINING GRAVE ACCENT',
      'LATIN SMALL LETTER B',
      'LATIN SMALL LETTER U',
      'COMBINING ACUTE ACCENT',
      'LATIN SMALL LETTER R',
      'LATIN SMALL LETTER O',
      'COMBINING GRAVE ACCENT',
      'LATIN SMALL LETTER E',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER L',
      'LATIN SMALL LETTER E',
      'COMBINING DOT BELOW',
      'COMBINING ACUTE ACCENT',
      'LATIN SMALL LETTER W',
      'LATIN SMALL LETTER A',
      'COMBINING GRAVE ACCENT']

Here's an example function that I think will do what you want:

import unicodedata

def remove_accents_but_not_dots(input_text):
   # Step 1: Decompose input_text into base letters and combinining characters
decomposed_text = unicodedata.normalize('NFD', input_text)

# Step 2: Filter out the combining characters we don 't want
filtered_text = ''
for c in decomposed_text:
   if ord(c) <= 0x7f or c == '\N{COMBINING DOT BELOW}':
   # Only keep ASCII or "COMBINING DOT BELOW"
filtered_text += c

# Step 3: Re - compose the string into precomposed characters
return unicodedata.normalize('NFC', filtered_text)

The first is to deal with characters that only have diacritic marks, no dots. From my admittedly cursory research of this language, it seems that for a given vowel it has three possible diacritic marks; acute, grave, and macron. Then, for a given vowel, you can create an array of the unicode numbers of each diacritic variant. So for the letter "a", you'd have the following:

a_diacritics = [224, 225, 257] # Unicode values
for á, à, and ā

Then you could compare the unicode values of each letter in your input to that array, and if it is a match, swap it with a normal "a":

input_string = "ọmọàbúròẹlẹ́wà"
output = ""
for letter in input:
   if ord(letter) in a_diacritics:
   output += 'a'
else:
   output += letter

The second part is the characters with both diacritics and dots. Letters like "ẹ́" are usually technically two separate characters. In the case of "ẹ́", it's "é" and the 'combining dot below' character, however in the case of the visually identical "ẹ́", it's "ẹ" and the 'combining acute accent' character. For the letters with the added dot character, the previous step with the arrays takes care of them. Then, for the added diacritic characters, you can have one final array for their unicode values:

diacritic_marks = [769, 768, 772] # Unicode values
for acute, grave, and macron diacritics

Suggestion : 2

I have tried using the unidecode library in anycodings_string Python, but it removes accents and under anycodings_string dots.,Different versions of antd library in React Parent and Child leading to CSS breakdown,I'll show you what I mean. First, let's anycodings_python-3.x look at individual code points the anycodings_python-3.x example text you provided above:,How can I put a child div in the top left corner of the document. even above the parents div?

I have tried using the unidecode library in anycodings_string Python, but it removes accents and under anycodings_string dots.

import unidecode
ac_stng = "ọmọàbúròẹlẹ́wà"
unac_stng = unidecode.unidecode(ac_stng)

I'll show you what I mean. First, let's anycodings_python-3.x look at individual code points the anycodings_python-3.x example text you provided above:

>>> from pprint
import pprint
   >>>
   import unicodedata >>>
   text = 'ọmọàbúròẹlẹ́wà' >>>
   pprint([unicodedata.name(c) for c in text])['LATIN SMALL LETTER O WITH DOT BELOW',
      'LATIN SMALL LETTER M',
      'LATIN SMALL LETTER O WITH DOT BELOW',
      'LATIN SMALL LETTER A WITH GRAVE',
      'LATIN SMALL LETTER B',
      'LATIN SMALL LETTER U WITH ACUTE',
      'LATIN SMALL LETTER R',
      'LATIN SMALL LETTER O WITH GRAVE',
      'LATIN SMALL LETTER E WITH DOT BELOW',
      'LATIN SMALL LETTER L',
      'LATIN SMALL LETTER E WITH ACUTE',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER W',
      'LATIN SMALL LETTER A WITH GRAVE']

As you can see, one of the characters is anycodings_python-3.x already partially decomposed (the one anycodings_python-3.x with the separate "COMBINING DOT anycodings_python-3.x BELOW"). Now let's look at it fully anycodings_python-3.x decomposed:

>>> text = unicodedata.normalize('NFD', text) >>>
   pprint([unicodedata.name(c) for c in text])['LATIN SMALL LETTER O',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER M',
      'LATIN SMALL LETTER O',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER A',
      'COMBINING GRAVE ACCENT',
      'LATIN SMALL LETTER B',
      'LATIN SMALL LETTER U',
      'COMBINING ACUTE ACCENT',
      'LATIN SMALL LETTER R',
      'LATIN SMALL LETTER O',
      'COMBINING GRAVE ACCENT',
      'LATIN SMALL LETTER E',
      'COMBINING DOT BELOW',
      'LATIN SMALL LETTER L',
      'LATIN SMALL LETTER E',
      'COMBINING DOT BELOW',
      'COMBINING ACUTE ACCENT',
      'LATIN SMALL LETTER W',
      'LATIN SMALL LETTER A',
      'COMBINING GRAVE ACCENT']

Here's an example function that I think anycodings_python-3.x will do what you want:

import unicodedata

def remove_accents_but_not_dots(input_text):
   # Step 1: Decompose input_text into base letters and combinining characters
decomposed_text = unicodedata.normalize('NFD', input_text)

# Step 2: Filter out the combining characters we don 't want
filtered_text = ''
for c in decomposed_text:
   if ord(c) <= 0x7f or c == '\N{COMBINING DOT BELOW}':
   # Only keep ASCII or "COMBINING DOT BELOW"
filtered_text += c

# Step 3: Re - compose the string into precomposed characters
return unicodedata.normalize('NFC', filtered_text)

The first is to deal with characters anycodings_python-3.x that only have diacritic marks, no dots. anycodings_python-3.x From my admittedly cursory research of anycodings_python-3.x this language, it seems that for a given anycodings_python-3.x vowel it has three possible diacritic anycodings_python-3.x marks; acute, grave, and macron. Then, anycodings_python-3.x for a given vowel, you can create an anycodings_python-3.x array of the unicode numbers of each anycodings_python-3.x diacritic variant. So for the letter anycodings_python-3.x "a", you'd have the following:

a_diacritics = [224, 225, 257] # Unicode values
for á, ÃÂ, and Ä 

Then you could compare the unicode anycodings_python-3.x values of each letter in your input to anycodings_python-3.x that array, and if it is a match, swap anycodings_python-3.x it with a normal "a":

input_string = "ọmọàbúròẹlẹ́wà"
output = ""
for letter in input:
   if ord(letter) in a_diacritics:
   output += 'a'
else:
   output += letter

The second part is the characters with anycodings_python-3.x both diacritics and dots. Letters like anycodings_python-3.x "ẹ́" are usually anycodings_python-3.x technically two separate characters. In anycodings_python-3.x the case of "ẹ́", it's anycodings_python-3.x "é" and the 'combining dot below' anycodings_python-3.x character, however in the case of the anycodings_python-3.x visually identical anycodings_python-3.x "ẹ́", it's anycodings_python-3.x "ẹ" and the 'combining acute anycodings_python-3.x accent' character. For the letters with anycodings_python-3.x the added dot character, the previous anycodings_python-3.x step with the arrays takes care of them. anycodings_python-3.x Then, for the added diacritic anycodings_python-3.x characters, you can have one final array anycodings_python-3.x for their unicode values:

diacritic_marks = [769, 768, 772] # Unicode values
for acute, grave, and macron diacritics

Suggestion : 3

Last Updated : 02 Jul, 2021,GATE CS 2021 Syllabus

Output:

Original String: orčpžsíáýd

New String: orcpzsiayd

Suggestion : 4

Last modified: November 2, 2021

Let's say that we are working with text containing the range of diacritical marks we want to remove:

āăąēîïĩíĝġńñšŝśûůŷ

After reading this article, we'll know how to get rid of diacritics and end up with:

aaaeiiiiggnnsssuuy

Before we perform a normalization, we might want to check that the String isn't already normalized:

assertFalse(Normalizer.isNormalized("āăąēîïĩíĝġńñšŝśûůŷ", Normalizer.Form.NFKD));
5._
static String removeAccents(String input) {
   return normalize(input).replaceAll("\\p{M}", "");
}

Let's see how our decomposition works in practice. Firstly, let's pick characters having normalization form defined by Unicode and expect to remove all diacritical marks:

@Test
void givenStringWithDecomposableUnicodeCharacters_whenRemoveAccents_thenReturnASCIIString() {
   assertEquals("aaaeiiiiggnnsssuuy", StringNormalizer.removeAccents("āăąēîïĩíĝġńñšŝśûůŷ"));
}