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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. #include <ctype.h>
  5. #include <locale.h>
  6. #include <stdint.h>
  7.  
  8.  
  9. // separate words with only one space
  10. char *handle_whitespace(char *content)
  11. {
  12.    // to be removed later
  13.    setlocale(LC_ALL, "en_US.utf8");
  14.    int i, len = mbstowcs(NULL,content,0)+1;
  15.  
  16.    wchar_t unicode_content[len];
  17.    wchar_t *normalized_content = malloc(len * sizeof(wchar_t *));
  18.  
  19.    // convert char to wchar_t
  20.    mbstowcs(unicode_content, content, len);
  21.  
  22.    short space_added = 0;
  23.    int k=0;   
  24.    for(i=0; unicode_content[i] ; ++i){
  25.        if(iswspace(unicode_content[i])){
  26. 	 if(!space_added) {
  27. 	   normalized_content[k] = L' ';
  28. 	   space_added = 1;
  29. 	   k++;
  30. 	 }
  31.        }else {	 
  32.          normalized_content[k] = unicode_content[i];
  33. 	 space_added = 0;
  34. 	 k++;
  35.        }
  36.  
  37.    }
  38.    normalized_content[k+1] = L'\0';
  39.  
  40.    // convert wchar_t back to char
  41.    char *newstr = malloc(len * sizeof(char *));
  42.    wcstombs(newstr,normalized_content,len * sizeof(char *));
  43.  
  44.    free(normalized_content);
  45.  
  46.    return newstr;
  47. }
  48.  
  49. int main(){
  50. char *h = handle_whitespace("hello    world");
  51.  
  52.   printf("%s\n", h);
  53. return 0;	
  54. }
Success #stdin #stdout 0s 2184KB
comments (?)
stdin 
Standard input is empty
stdout 
hello world
https://ideone.com/5Rkk9q
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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