fork download
copy 
  1. %{
  2. #include <stdio.h>
  3. %}
  4.  
  5. %token NOUN PRONOUN VERB ADVERB ADJECTIVE PREPOSITION CONJUNCTION
  6.  
  7. %%
  8.  
  9. sentence: simple_sentence  { printf("Parsed a simple sentence.\n"); }
  10.       | compound_sentence { printf("Parsed a compound sentence.\n"); }
  11.       ;
  12.  
  13. simple_sentence: subject verb object
  14.       |     subject verb object prep_phrase
  15.       ;
  16.  
  17. compound_sentence: simple_sentence CONJUNCTION simple_sentence
  18.       |     compound_sentence CONJUNCTION simple_sentence
  19.       ;
  20.  
  21. subject:    NOUN
  22.       |     PRONOUN
  23.       |     ADJECTIVE subject
  24.       ;
  25.  
  26. verb:       VERB
  27.       |     ADVERB VERB
  28.       |     verb VERB
  29.       ;
  30.  
  31. object:           NOUN
  32.       |     ADJECTIVE object
  33.       ;
  34.  
  35. prep_phrase:     PREPOSITION NOUN
  36.       ;
  37.  
  38. %%
  39.  
  40. extern FILE *yyin;
  41.  
  42. main()
  43. {
  44.       do
  45.         {
  46.             yyparse();
  47.       }
  48.         while(!feof(yyin));
  49. }
  50.  
  51. yyerror(s)
  52. char *s;
  53. {
  54.     fprintf(stderr, "%s\n", s);
  55. }
Success #stdin #stdout #stderr 0.02s 6272KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
ERROR: /home/QTyepJ/prog:55:0: Syntax error: Unexpected end of file
ERROR: '$runtoplevel'/0: Undefined procedure: program/0
   Exception: (3) program ? EOF: exit
https://ideone.com/cBkuWc
language:
Prolog (swi 7.6.4)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!