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  1. #include <iostream>
  2. #include <regex.h>
  3. #include <string.h>
  4.  
  5. #define REGEX "@([^(@]+)(\\(\\(property\\(([^)]+)\\)val\\(([^)]+)\\)\\))?"
  6. #define DEBUG 1
  7. using namespace std;
  8.  
  9. typedef struct {
  10.     char* name;
  11.     char* property;
  12.     char* value;
  13. } item;
  14.  
  15. int getMatches(char* haystack, item** items){
  16.     int l = -1, ats = 0;
  17.     while (haystack[++l])
  18.         if (haystack[l] == '@')
  19.             ats++;
  20.     *items = (item*) malloc(ats * sizeof(item));
  21.     item* arr = *items;
  22.     regex_t needle;
  23.     regcomp(&needle, REGEX, REG_ICASE|REG_EXTENDED);
  24.     regmatch_t match[5];
  25.     int ret;
  26.     int x = -1;
  27.     while (!(ret = regexec(&needle, haystack, 5, match,0))){
  28.         ++x;
  29.         if (DEBUG) cerr << "MATCH INSTANCE " << x << "\n";
  30.  
  31.         //Get the name
  32.         int bufsize = match[1].rm_eo-match[1].rm_so + 1;
  33.         arr[x].name = (char *) malloc(bufsize);
  34.         if(arr[x].name == NULL)
  35.             cerr << "MALLOC FAILED\n";
  36.         strncpy(arr[x].name, &(haystack[match[1].rm_so]), bufsize - 1);
  37.         arr[x].name[bufsize-1]=0x0;
  38.         if (DEBUG) cerr <<"    "<<arr[x].name <<'\n';
  39.         //if property and value are both valid...
  40.         if (!(match[3].rm_so > l || match[3].rm_so<0 || match[3].rm_eo > l || match[3].rm_so< 0
  41.                 || match[4].rm_so > l || match[4].rm_so<0 || match[4].rm_eo > l || match[4].rm_so< 0)){
  42.             //Get the property
  43.             bufsize = match[3].rm_eo-match[3].rm_so + 1;
  44.             arr[x].property = (char *) malloc(bufsize);
  45.             if(arr[x].property == NULL)
  46.                 cerr << "MALLOC FAILED\n";
  47.             strncpy(arr[x].property, &(haystack[match[3].rm_so]), bufsize - 1);
  48.             arr[x].property[bufsize-1]=0x0;
  49.             if (DEBUG) cerr <<"    "<<arr[x].property<<'\n';
  50.  
  51.             //Get the Value
  52.             bufsize = match[4].rm_eo-match[4].rm_so + 1;
  53.             arr[x].value = (char *) malloc(bufsize);
  54.             if(arr[x].value == NULL)
  55.                 cerr << "MALLOC FAILED\n";
  56.             strncpy(arr[x].value, &(haystack[match[4].rm_so]), bufsize - 1);
  57.             arr[x].value[bufsize-1]=0x0;
  58.             if (DEBUG) cerr <<"    "<<arr[x].value<<'\n';
  59.         } else {
  60.             arr[x].property = NULL;
  61.             arr[x].value = NULL;
  62.         }
  63.         haystack = &(haystack[match[0].rm_eo]);
  64.         l -= match[0].rm_eo;
  65.     }
  66.     return x+1;
  67. }
  68.  
  69. int main() {
  70.     char* haystack = "MyCarGarage@Mustang((property(PS)val(500))@Porsche((property(PS)val(425))@Corvette@Corsair@Pinto((property(exploded)val(not yet))";
  71.     item* matches;
  72.     int n = getMatches(haystack, &matches);
  73.     cout << "FOUND " << n << " MATCHES:\n\n";
  74.     for (int i = 0; i<n; i++){
  75.         cout <<'S'<< i << ": "<< matches[i].name<<'\n';
  76.         if (matches[i].property != NULL){
  77.             cout <<'P'<< i << ": "<< matches[i].property<<'\n';
  78.             cout <<'V'<< i << ": "<< matches[i].value<<'\n'; //*/
  79.         }
  80.         cout <<'\n';
  81.         //cout << other[0].name <<'\n';
  82.     }
  83.     return 0;
  84. }
Success #stdin #stdout #stderr 0s 2988KB
comments (?)
stdin
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Standard input is empty
stdout
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FOUND 5 MATCHES:

S0: Mustang
P0: PS
V0: 500

S1: Porsche
P1: PS
V1: 425

S2: Corvette

S3: Corsair

S4: Pinto
P4: exploded
V4: not yet
stderr
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MATCH INSTANCE 0
    Mustang
    PS
    500
MATCH INSTANCE 1
    Porsche
    PS
    425
MATCH INSTANCE 2
    Corvette
MATCH INSTANCE 3
    Corsair
MATCH INSTANCE 4
    Pinto
    exploded
    not yet
https://ideone.com/S7UQpA
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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