72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
#include "input.h"
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#include <string.h>
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#include <ctype.h>
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// TODO:
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// eine Funktion implementieren, die ein einzelnes Wort aus einer Textdatei (words.txt) einliest und als C-String zurückgibt.
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static char *liesWort(FILE *file, char *puffer, unsigned int pufferGroesse) {
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int laenge = 0;
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if (file == NULL || puffer == NULL || pufferGroesse == 0) {
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return NULL;
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}
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if (fgets(puffer, (int)pufferGroesse, file) == NULL) {
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return NULL;
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}
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laenge = (int)strlen(puffer);
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if (laenge > 0 && puffer[laenge - 1] == '\n') {
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puffer[laenge - 1] = '\0';
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laenge--;
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}
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if (laenge > 0 && puffer[laenge - 1] == '\r') {
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puffer[laenge - 1] = '\0';
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laenge--;
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}
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return puffer;
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}
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// Read words from file and store in 'words' array
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int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount){
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int anzahlWoerter = 0;
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int i = 0;
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char zeilenPuffer[MAX_LINE_LEN];
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char *wort = NULL;
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const char *trennzeichen = " ,;\t\r\n";
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if (file == NULL || words == NULL || maxWordCount == 0) {
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return 0;
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}
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while (anzahlWoerter < (int)maxWordCount && liesWort(file, zeilenPuffer, sizeof(zeilenPuffer)) != NULL) {
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wort = strtok(zeilenPuffer, trennzeichen);
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while (wort != NULL && anzahlWoerter < (int)maxWordCount) {
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while (*wort == ' ' || *wort == '\t') {
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wort++;
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}
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if (*wort == '\0') {
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wort = strtok(NULL, trennzeichen);
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continue;
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}
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for (i = 0; wort[i] != '\0'; i++) {
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wort[i] = (char)toupper((unsigned char)wort[i]);
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}
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strncpy(words[anzahlWoerter], wort, MAX_WORD_LEN - 1);
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words[anzahlWoerter][MAX_WORD_LEN - 1] = '\0';
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anzahlWoerter++;
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wort = strtok(NULL, trennzeichen);
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}
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}
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return anzahlWoerter;
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}
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