Parsing text in C ??

-=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- (c) WidthPadding Industries 1987 0\|541\|0 -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=-
Socoder -> C/C++/C#/Other -> Parsing text in C ??
Mon, 18 Jan 2010, 14:20
spinal	Ok, I have one app, outputting a text file as follows - fat:/022-MunkyBlocks.nds,. ê ,#### fat:/SensitiveDS.nds,. ê ,#### fat:/Negative_Joe.nds,. ê ,#### fat:/!Tarquins_Quest.nds,. ê ,#### fat:/DiagnoSe.nds,. ê ,#### fat:/ysmenu.nds,. ê ,#### fat:/DScovered.nds,. ê ,#### --v but im completely stumped as to how I go about reading this text into a couple of arrays. I would like to read this text into the following arrays - Icons[number].filename Icons[number].game_title Icons[number].game_code so that I end up with something like - Icons[0].filename = "fat:/022-MunkyBlocks.nds" Icons[0].game_title = ". ê " Icons[0].game_code = "####" Icons[1].filename = "fat:/SensitiveDS.nds" Icons[1].game_title = ". ê " Icons[1].game_code = "####" etc. note, the " are only there to show that they are strings. How the hell do I do this? -=-=- Check out my excellent homepage!
Mon, 18 Jan 2010, 15:09
Jayenkai	That's assuming that works in DS-based-C, I remember it having a multitude of "Standard String" issues, enough that I gave up and just ended up avoiding strings at all costs, except for the absolute bare essentials.. If strtok doesn't work, (unable to test, absolutely no devkit installed!!) it's just a case of running through and splitting it up where txt[n]=44.. char filename[1024]; char title[1024]; char code[1024]; char txt[1024]; strcpy(txt,"Test A, Test B, Test C"); int totxt=1; int flen=0; int tlen=0; int clen=0; char ch=0; int n=0 while (n<strlen(txt)) { do==1; ch=txt[n]; if (ch==44) {do=0;totxt++;} if (totxt==1) && (do==1) {filename[flen]=ch;flen++;} if (totxt==2) && (do==1) {title[tlen]=ch;tlen++;} if (totxt==3) && (do==1) {code[clen]=ch;clen++;} n++; } --v Maaaan, I'm WAY outta practice with that!! Far too much BlitzMax lately! There's bound to be loads of fooks with that code! As always, check string limits, and that kinda stuff. -=-=- ''Load, Next List!''
Tue, 19 Jan 2010, 23:48
spinal	OK, I got this far... FILE fp1; char oneword[512]; char c; int cpy=0, offset=0; fp1 = fopen("fat:/filelist.txt", "r"); if (fp1){ do{ c = fgets(oneword, 512, fp1); // surely 512 characters is plenty? if (c != NULL) cpy=0; offset=0; for(temp=0; temp<strlen(oneword); temp++){ if(oneword[temp] != 44){ if(cpy==0)Icons[number_of_files].filename[temp-offset] =oneword[temp]; if(cpy==1)Icons[number_of_files].game_title[temp-offset]=oneword[temp]; if(cpy==2)Icons[number_of_files].game_code[temp-offset] =oneword[temp]; }else{ //terminate the current strings if(cpy==0)Icons[number_of_files].filename[temp-offset] =0; if(cpy==1)Icons[number_of_files].game_title[temp-offset]=0; if(cpy==2)Icons[number_of_files].game_code[temp-offset] =0; cpy++; // move to the next string offset=temp+1; // remember where the old string ends } } number_of_files++; } while (c != NULL); fclose(fp1); } PA_16cClearZone(1,0,0,255,192); for(temp=0; temp<number_of_files; temp++){ sprintf(temp_text,"%d ",temp); PA_16cText(1, 0, temp * 16, 256, 192, temp_text, 1, 1, 2); PA_16cText(1, 16, temp * 16, 256, 192, Icons[temp].filename, 1, 1, 256); } PA_WaitFor(Pad.Newpress.Start); --v but it's merging the last two strings into one so from "file.ext,........,####" I'm getting "file.ext" "........####" "" Any ideas? -=-=- Check out my excellent homepage!
Wed, 20 Jan 2010, 01:04
Cower	Try something like this: char *splitCSV(input, splits) const char input; size_t splits; { char split = NULL; const char iter = input; size_t maxsz = 0; { size_t elems = 1; size_t size = 0; int i = 0; if (input == NULL) return NULL; for (; iter; ++iter, ++size) if (iter == ',') { ++elems; if (maxsz < size) maxsz = size; size = 0; } if (elems == 0 \|\| maxsz == 0) return NULL; split = (char*)malloc(elemssizeof(char) + elems((maxsz+1)sizeof(char))); if (splits != NULL) splits = elems; for(; i < elems; ++i) split[i] = ((char)(split+elems))+((maxsz+1)i); } iter = input; { int elem = 0; int chindex = 0; for (; iter; ++iter) { if (iter == ',') { split[elem++][chindex] = 0; chindex = 0; continue; } split[elem][chindex++] = *iter; } } return split; } --v By the way, you'll have to call free(..) on the returned pointer when you're done with it.
Wed, 20 Jan 2010, 11:03
spinal	I tried Agent's code again, and it seems to be working fine, not sure what went wrong the first time. Anyway, now I have a weird 'wont load a file that is really truly there' problem, probably unrelated. I never got to test your code cower... sorry. -=-=- Check out my excellent homepage!