diff options
Diffstat (limited to 'irc_parse.c')
| -rw-r--r-- | irc_parse.c | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/irc_parse.c b/irc_parse.c new file mode 100644 index 0000000..98820a3 --- /dev/null +++ b/irc_parse.c @@ -0,0 +1,293 @@ +#include "irc_parse.h" + +/*mvar things*/ +//shitty macro +#define MVAR_ALLOC_STRC(VNAME,VTYPE,VRET)\ +VTYPE *VNAME;\ +VNAME=malloc(sizeof(VTYPE));\ +if ((VNAME)==NULL){\ +VRET\ +}\ +memset(VNAME,0,sizeof(VTYPE)); + +#define MVAR_ALLOC_ARR(VNAME,VTYPE,VSZ,VRET)\ +VTYPE *VNAME;\ +VNAME=malloc(sizeof(VTYPE)*(VSZ));\ +if ((VNAME)==NULL){\ +VRET\ +}\ +memset(VNAME,0,sizeof(VTYPE)*(VSZ)); + +/**/ + +irc_token* token_create() +{ + MVAR_ALLOC_STRC(ret,irc_token,{ + return NULL; + }); + + ret->size = 0; + ret->max_size = IRC_TK_MAX_SIZE; //should be enought + + MVAR_ALLOC_ARR(reg_tk_list,irc_token_el*,ret->max_size,{ + free(ret); + return NULL; + }); + + ret->tk_list = reg_tk_list; + + return ret; +} + +//? maybe return number of index? + +int token_add(irc_token *tk, char *s, char *e) +{ + int ret = -1; + + + //as there irc usually have no more then 512 bytes + if ((e-s)>512) + { + return -1; + } + + MVAR_ALLOC_STRC(token,irc_token_el,{ + return -1; + }); + + int sz=e-s; + token->type = IRC_TKT_NONE; + token->size = sz; + token->token = malloc(sz+1); //blow + memcpy(token->token,s,token->size); + token->token[token->size] = 0x0; + + //dont support more tokens then original size, for now + if (tk->size == IRC_TK_MAX_SIZE) + { + printf("Cant add token, no space\n"); + return -1; + } + + tk->tk_list[tk->size] = token; + tk->size += 1; + ret = 0; + + return ret; +} + + +int token_cmp(irc_token *tk, int idx, char *str) +{ + int ret = -1; + + if ((idx>=tk->size) || (idx<0)) + { + return -1; + } + + if (strncmp(tk->tk_list[idx]->token,str,strlen(tk->tk_list[idx]->token)) != 0) + { + return 0; + } + ret = 1; + + return ret; +} + + +char* token_new_str(irc_token *tk, int idx) +{ + char *ret = NULL; + + if (tk->size < idx ) + { + return NULL; + } + + if (idx < 0) + { + return NULL; + } + + ret = alloc_new_str_s(tk->tk_list[idx]->token,tk->tk_list[idx]->size); + + return ret; +} + + +int token_len(irc_token *tk) +{ + int ret = -1; + + ret = tk->size; + + return ret; +} + + +void token_destroy(irc_token *tk) +{ + if (tk != NULL) + { + int i; + for (i=0;i<tk->size;i++) + { + free(tk->tk_list[i]->token); + free(tk->tk_list[i]); + } + + free(tk->tk_list); + free(tk); + } +} + +#define IRC_P_START 1 +#define IRC_P_START_WORD 2 +#define IRC_P_CONTINUE 3 +#define IRC_P_MESSAGE 4 +#define IRC_P_END 5 +irc_token* irc_parse(char *str, int sz) +{ + irc_token *ret=NULL; + + int j=-1; + int state=IRC_P_START; + char *iter = str; + char *st=NULL,*en=NULL; + int tok_cnt=0; + + if (str[0] != ':') + { + return NULL; + } + + ret = token_create(); + if (ret == NULL) + { + printf("Cant allocate token array\n"); + return NULL; + } + + for (j=0;j<sz;j++) + { + + + switch(state) + { + case IRC_P_START: + //printf("S %d %02x\n",j,iter[j]); + //if begining is just empty space continue + if (iter[j]==' ') + { + break; + } + if (iter[j]=='\0') + { + //if first byte zero then nothing to do + state = IRC_P_END; + break; + } + //parse first word + state = IRC_P_START_WORD; + break; + case IRC_P_START_WORD: + //printf("W"); + //tok[tok_cnt].s = iter+j; + st = iter+j; + if (iter[j]==' ') + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j-1; + tok_cnt += 1; + state = IRC_P_START; + break; + } + if (iter[j]=='\0') + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j; + token_add(ret, st, en); + tok_cnt += 1; + state = IRC_P_END; + break; + } + if (iter[j]==':') + { + //tok[tok_cnt].s = iter+j; + st = iter+j; + state = IRC_P_MESSAGE; + break; + } + state = IRC_P_CONTINUE; + break; + case IRC_P_CONTINUE: + //printf("C"); + if ((iter[j]!=' ')&&(iter[j]!='\0')) + { + state = IRC_P_CONTINUE; + break; + } + if (iter[j]=='\0') + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j; + token_add(ret,st,en); + tok_cnt += 1; + state = IRC_P_END; + break; + } + if (iter[j]==' ') + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j; + token_add(ret,st,en); + tok_cnt += 1; + state = IRC_P_START_WORD; + break; + } + printf("Unknown state\n"); + break; + case IRC_P_MESSAGE: + //printf("M"); + if ((iter[j]=='\0')||(iter[j]=='\n')||(iter[j]=='\r')) + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j; + token_add(ret,st,en); + tok_cnt += 1; + state = IRC_P_END; + break; + } + state = IRC_P_MESSAGE; + break; + case IRC_P_END: + //printf("E\n"); + break; + default: + printf("ERR STATE %d\n",state); + return NULL; + }; + + } + if ((state==IRC_P_CONTINUE)||(state==IRC_P_MESSAGE)) + { + //tok[tok_cnt].e = iter+j-1; + en = iter+j; + token_add(ret,st,en); + tok_cnt += 1; + } + for (j=0;j<tok_cnt;j++) + { + //write(0,tok[j].s,tok[j].e-tok[j].s+1); + //*(tok[j].e+1)=0x0; + //write(0,"]\n",2); + } + if (tok_cnt < 2 ) + { + printf("Not enought tokens\n"); + }; + + return ret; +}
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