! * \brief sarrayCreateLinesFromString() * * \param[in] string * \param[in] blankflag 0 to exclude blank lines; 1 to include * \return sarray, or NULL on error * * * Notes: * (1) This finds the number of line substrings, each of which * ends with a newline, and puts a copy of each substring * in a new sarray. * (2) The newline characters are
| 273 | * </pre> |
| 274 | */ |
| 275 | SARRAY * |
| 276 | sarrayCreateLinesFromString(const char *string, |
| 277 | l_int32 blankflag) |
| 278 | { |
| 279 | l_int32 i, nsub, size, startptr; |
| 280 | char *cstring, *substring; |
| 281 | SARRAY *sa; |
| 282 | |
| 283 | PROCNAME("sarrayCreateLinesFromString"); |
| 284 | |
| 285 | if (!string) |
| 286 | return (SARRAY *)ERROR_PTR("textstr not defined", procName, NULL); |
| 287 | |
| 288 | /* Find the number of lines */ |
| 289 | size = strlen(string); |
| 290 | nsub = 0; |
| 291 | for (i = 0; i < size; i++) { |
| 292 | if (string[i] == '\n') |
| 293 | nsub++; |
| 294 | } |
| 295 | |
| 296 | if ((sa = sarrayCreate(nsub)) == NULL) |
| 297 | return (SARRAY *)ERROR_PTR("sa not made", procName, NULL); |
| 298 | |
| 299 | if (blankflag) { /* keep blank lines as null strings */ |
| 300 | /* Make a copy for munging */ |
| 301 | if ((cstring = stringNew(string)) == NULL) { |
| 302 | sarrayDestroy(&sa); |
| 303 | return (SARRAY *)ERROR_PTR("cstring not made", procName, NULL); |
| 304 | } |
| 305 | /* We'll insert nulls like strtok */ |
| 306 | startptr = 0; |
| 307 | for (i = 0; i < size; i++) { |
| 308 | if (cstring[i] == '\n') { |
| 309 | cstring[i] = '\0'; |
| 310 | if (i > 0 && cstring[i - 1] == '\r') |
| 311 | cstring[i - 1] = '\0'; /* also remove Windows CR */ |
| 312 | if ((substring = stringNew(cstring + startptr)) == NULL) { |
| 313 | sarrayDestroy(&sa); |
| 314 | LEPT_FREE(cstring); |
| 315 | return (SARRAY *)ERROR_PTR("substring not made", |
| 316 | procName, NULL); |
| 317 | } |
| 318 | sarrayAddString(sa, substring, L_INSERT); |
| 319 | /* fprintf(stderr, "substring = %s\n", substring); */ |
| 320 | startptr = i + 1; |
| 321 | } |
| 322 | } |
| 323 | if (startptr < size) { /* no newline at end of last line */ |
| 324 | if ((substring = stringNew(cstring + startptr)) == NULL) { |
| 325 | sarrayDestroy(&sa); |
| 326 | LEPT_FREE(cstring); |
| 327 | return (SARRAY *)ERROR_PTR("substring not made", |
| 328 | procName, NULL); |
| 329 | } |
| 330 | sarrayAddString(sa, substring, L_INSERT); |
| 331 | /* fprintf(stderr, "substring = %s\n", substring); */ |
| 332 | } |
no test coverage detected