C / C++ / MFC

etechX2 wrote:

... and is wrong.

#include <stdio.h>
#include <string.h>

#define MAX_STRINGS 3
#define MAX_LENGTH 512

// Function to perform search and replace
void searchAndReplace(char text[][MAX_LENGTH], int numStrings, const char* searchStr, const char* replaceStr) {
    int replaced = 0;

    for (int i = 0; i < numStrings; ++i) {
        char buffer[MAX_LENGTH];
        char* pos;
        size_t searchLen = strlen(searchStr);
        size_t replaceLen = strlen(replaceStr);

        // Copy original string to buffer
        strcpy_s(buffer, text[i]);

        // Perform the replacement
        while ((pos = strstr(buffer, searchStr)) != NULL) {
            // Print the original string before replacement
            if (!replaced) {
                printf("%s\n", text[i]);
                replaced = 1;
            }

            // Perform the replacement
            size_t len = strlen(pos + searchLen);
            memmove(pos + replaceLen, pos + searchLen, len + 1);
            memcpy(pos, replaceStr, replaceLen);
        }

        // Print the modified string if it was replaced
        if (replaced) {
            printf("%s\n", buffer);
            replaced = 0; // Reset for the next string
        }
    }
}

int main() {
    // Prepare the strings in full-width characters
    char strings[MAX_STRINGS][MAX_LENGTH] = {
        "１８歳と８１歳の違い。１８歳は恋に溺れる人で、８１歳はお風呂に溺れる人。１８歳は道を走り、逆もまた然り。８１歳の人が走っている。１８歳は心がもろく、８１歳は骨がもろい。私は１８歳で心臓が止まらない。",
        "８１歳の彼は飛行機を止められない。１８歳は恋に窒息することができ、８１歳は餅に窒息することができる。偏差値が気になる。私は１８歳で、８１歳で血圧と血糖値を気にしている。まだ何も知らない１８歳、もう何も覚えていない８１歳。",
        "自分を探している１８歳と、みんなを探している８１歳。"
    };

    // Display the original strings
    printf("Original strings:\n");
    for (int i = 0; i < MAX_STRINGS; ++i) {
        printf("%s\n", strings[i]);
    }

    // Input search and replacement strings
    char searchStr[11], replaceStr[11];
    printf("Enter search string (up to 10 characters): ");
    fgets(searchStr, sizeof(searchStr), stdin);
    searchStr[strcspn(searchStr, "\n")] = '\0'; // Remove newline character
    printf("Enter replacement string (up to 10 characters): ");
    fgets(replaceStr, sizeof(replaceStr), stdin);
    replaceStr[strcspn(replaceStr, "\n")] = '\0'; // Remove newline character

    // Ensure searchStr and replaceStr are within the allowed length
    if (strlen(searchStr) > 10 || strlen(replaceStr) > 10) {
        fprintf(stderr, "Search and replacement strings must be up to 10 characters long.\n");
        return 1;
    }

    // Process and replace
    int found = 0;
    for (int i = 0; i < MAX_STRINGS; ++i) {
        if (strstr(strings[i], searchStr) != NULL) {
            found = 1;
            searchAndReplace(strings, MAX_STRINGS, searchStr, replaceStr);
        }
    }

    // Output message if nothing was changed
    if (!found) {
        printf("Nothing is changed.\n");
    }

    return 0;
}

Member 16311074 wrote:

...not letting me enter my replacement string.

Member 16311074 wrote:

replaced = 0; // Reset for the next string