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  1. %{
  2. #include <stdio.h>
  3. #include <ctype.h>
  4.  
  5. int blank_spaces = 0;  // Counter for blank spaces
  6. int word_count = 0;    // Counter for words
  7. int line_count = 0;    // Counter for lines
  8. %}
  9.  
  10. %%
  11.  
  12. \n             { line_count++; }                 // Increment line count on encountering newline
  13. [ \t]+         { blank_spaces++; }               // Increment blank spaces count for spaces and tabs
  14. [A-Za-z0-9]+   { word_count++; }                 // Increment word count for words (alphanumeric)
  15. .              { }                                // Ignore all other characters
  16.  
  17. %%
  18.  
  19. int main(int argc, char *argv[]) {
  20.     if (argc < 2) {
  21.         printf("Usage: %s <filename>\n", argv[0]);
  22.         return 1;
  23.     }
  24.  
  25.     FILE *file = fopen(argv[1], "r");
  26.     if (file == NULL) {
  27.         perror("Error opening file");
  28.         return 1;
  29.     }
  30.  
  31.     yyin = file;  // Set the input file for lex to read from
  32.     yylex();      // Call the lexer to start scanning
  33.  
  34.     printf("Lines: %d\n", line_count);
  35.     printf("Words: %d\n", word_count);
  36.     printf("Blank Spaces: %d\n", blank_spaces);
  37.  
  38.     fclose(file);
  39.     return 0;
  40. }
  41.  
Success #stdin #stdout #stderr 0.02s 6924KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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ERROR: /home/XuZxix/prog:2:1: Syntax error: Operator expected
ERROR: /home/XuZxix/prog:40:1: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/I2kriP
language:
Prolog (swi 7.6.4)
created:
1 day ago
visibility:
public

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