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Started working on non-interactive mode

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Jack-Benny Persson 2017-07-10 03:07:21 +02:00
parent 1037aef5f5
commit 705da77a3a
1 changed files with 66 additions and 30 deletions
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64
on-stock.c
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@ -24,9 +24,9 @@ char filename[FILEMAXLENGTH] = "storage.bin";
/* Function prototype */ /* Function prototype */
void list(struct myData *datap, int numRec); void list(struct myData *datap, int numRec);
void search(struct myData *datap, int numRec); void search(struct myData *datap, int numRec, char *name);
void modify(struct myData *datap, int numRec); void modify(struct myData *datap, int numRec, char *name, char *num);
void delete(struct myData *datap, int numRec); void delete(struct myData *datap, int numRec, char *name);
int new(struct myData *datap, int numRec); int new(struct myData *datap, int numRec);
void printUsage(char *arg); void printUsage(char *arg);
void printHeader(void); void printHeader(void);
@ -112,12 +112,18 @@ int main(int argc, char* argv[])
if ( choice == 'l' ) if ( choice == 'l' )
list(data, numRec); list(data, numRec);
else if ( choice == 's' ) else if ( choice == 's' && argc >= 2 )
search(data, numRec); search(data, numRec, argv[2]);
else if ( choice == 'm' ) else if ( choice == 's' && argc <= 2)
modify(data, numRec); search(data, numRec, NULL);
else if ( choice == 'd' ) else if ( choice == 'm' && argc >= 3)
delete(data, numRec); modify(data, numRec, argv[2], argv[3]);
else if ( choice == 'm' && argc <= 4)
modify(data, numRec, NULL, NULL);
else if ( choice == 'd' && argc >= 2 )
delete(data, numRec, argv[2]);
else if ( choice == 'd' && argc <= 2 )
delete(data, numRec, NULL);
} }
else if ( choice == 'n' ) else if ( choice == 'n' )
@ -149,14 +155,20 @@ void list(struct myData *datap, int numRec)
printf("\n"); printf("\n");
} }
void search(struct myData *datap, int numRec) void search(struct myData *datap, int numRec, char *name)
{ {
char searchword[NAMEMAXLENGTH]; char searchword[NAMEMAXLENGTH];
if (name != NULL)
{
strncpy(searchword, name, NAMEMAXLENGTH-1);
}
else
{
printf("Name: "); printf("Name: ");
fgets(searchword, NAMEMAXLENGTH, stdin); fgets(searchword, NAMEMAXLENGTH, stdin);
/* Replace the newline character with a null character */ /* Replace the newline character with a null character */
searchword[strcspn(searchword, "\n")] = '\0'; searchword[strcspn(searchword, "\n")] = '\0';
}
for (int i = 0; i<numRec; i++) for (int i = 0; i<numRec; i++)
{ {
@ -170,15 +182,26 @@ void search(struct myData *datap, int numRec)
} }
} }
void modify(struct myData *datap, int numRec) void modify(struct myData *datap, int numRec, char *name, char *num)
{ {
char searchword[NAMEMAXLENGTH]; char searchword[NAMEMAXLENGTH];
char what[10]; char what[10];
char quant[20]; char quant[20];
int interactive = 1;
if (name != NULL && num != NULL)
{
strncpy(searchword, name, NAMEMAXLENGTH-1);
strncpy(what, "quantity", 9);
strncpy(quant, num, 19);
interactive = 0;
}
else
{
printf("Name: "); printf("Name: ");
fgets(searchword, NAMEMAXLENGTH, stdin); fgets(searchword, NAMEMAXLENGTH, stdin);
searchword[strcspn(searchword, "\n")] = '\0'; searchword[strcspn(searchword, "\n")] = '\0';
}
for (int i = 0; i<numRec; i++) for (int i = 0; i<numRec; i++)
{ {
@ -190,18 +213,24 @@ void modify(struct myData *datap, int numRec)
printf("%.2f\t", datap[i].price); printf("%.2f\t", datap[i].price);
printf("\n\n"); printf("\n\n");
if (interactive == 1)
{
printf("What do you like to modify? (name, quantity, price): "); printf("What do you like to modify? (name, quantity, price): ");
fgets(what, 10, stdin); fgets(what, 10, stdin);
what[strcspn(what, "\n")] = '\0'; what[strcspn(what, "\n")] = '\0';
}
if ( strcmp(what, "name") == 0 ) if ( strcmp(what, "name") == 0 )
{ {
printf("Name: "); scanf("%29s", datap[i].name); printf("Name: "); scanf("%29s", datap[i].name);
} }
else if ( strcmp(what, "quantity") == 0 ) else if ( strcmp(what, "quantity") == 0 )
{
if (interactive == 1)
{ {
printf("Quantity (absolute value or +/-NUMBER: "); printf("Quantity (absolute value or +/-NUMBER: ");
fgets(quant, 20, stdin); fgets(quant, 20, stdin);
quant[strcspn(quant, "\n")] = '\0'; quant[strcspn(quant, "\n")] = '\0';
}
/* Process the first character */ /* Process the first character */
if (quant[0] == '+') if (quant[0] == '+')
datap[i].quantity = datap[i].quantity + atoi(quant); datap[i].quantity = datap[i].quantity + atoi(quant);
@ -226,14 +255,21 @@ void modify(struct myData *datap, int numRec)
fclose(newfp); fclose(newfp);
} }
void delete(struct myData *datap, int numRec) void delete(struct myData *datap, int numRec, char *name)
{ {
char searchword[NAMEMAXLENGTH]; char searchword[NAMEMAXLENGTH];
int answer; int answer;
if (name != NULL)
{
strncpy(searchword, name, NAMEMAXLENGTH-1);
}
else
{
printf("Name: "); printf("Name: ");
fgets(searchword, NAMEMAXLENGTH, stdin); fgets(searchword, NAMEMAXLENGTH, stdin);
searchword[strcspn(searchword, "\n")] = '\0'; searchword[strcspn(searchword, "\n")] = '\0';
}
for (int i = 0; i<numRec; i++) for (int i = 0; i<numRec; i++)
{ {
if ( strcmp(searchword, datap[i].name) == 0 ) if ( strcmp(searchword, datap[i].name) == 0 )