diff options
Diffstat (limited to 'myal.c')
| -rw-r--r-- | myal.c | 147 |
1 files changed, 111 insertions, 36 deletions
@@ -11,6 +11,7 @@ typedef struct { } entry_t; typedef enum { + MATCH_MODE, SEARCH_MODE, APPEND_MODE, EDIT_MODE, @@ -19,11 +20,12 @@ typedef enum { void print_help() { - printf("usage: myal [-s <name>] [-ae <name> <episode>]\n"); - printf(" Prints all entries by default \n"); - printf(" -s <name> Search for a specific anime by name \n"); - printf(" -a <name> <number> Append new anime and episode to file \n"); - printf(" -e <name> <number> Edit the episode number of an anime \n"); + printf("usage: myal [-s <name>] [-ae <name> <episode>] \n"); + printf(" Prints all entries by default \n"); + printf(" -m <name> Prints all anime containing the given string \n"); + printf(" -s <name> Search for a specific anime by name \n"); + printf(" -a <name> <number> Append new anime and episode to file \n"); + printf(" -e <name> <number> Edit the episode number of an anime \n"); printf("\n"); } @@ -39,8 +41,14 @@ char *getfield(char *line, int num) } // print everything -void *print_all(FILE *fp) +void print_all() { + FILE *fp = fopen(filename, "r"); + if (fp == NULL) { + fprintf(stderr, "ERROR: no such file\n"); + exit(EXIT_FAILURE); + } + char line[100]; while (fgets(line, sizeof(line), fp)) { char *tmp = strdup(line); @@ -51,11 +59,18 @@ void *print_all(FILE *fp) printf("Name: %s Episode: %s", name, episode); free(tmp); } + fclose(fp); } // print any entry containing the search string -void *print_matches(FILE *fp, const char *sel) +void print_matches(const char *sel) { + FILE *fp = fopen(filename, "r"); + if (fp == NULL) { + fprintf(stderr, "ERROR: no such file\n"); + exit(EXIT_FAILURE); + } + char line[100]; while (fgets(line, sizeof(line), fp)) { char *tmp = strdup(line); @@ -68,11 +83,18 @@ void *print_matches(FILE *fp, const char *sel) } free(tmp); } + fclose(fp); } // return one single entry matching the search string from the first character -entry_t *get_entry(FILE *fp, const char *sel) +entry_t *get_entry(const char *sel) { + FILE *fp = fopen(filename, "r"); + if (fp == NULL) { + fprintf(stderr, "ERROR: no such file\n"); + exit(EXIT_FAILURE); + } + entry_t *res = malloc(sizeof(entry_t)); char line[100]; while (fgets(line, sizeof(line), fp)) { @@ -88,69 +110,122 @@ entry_t *get_entry(FILE *fp, const char *sel) } free(tmp); } + fclose(fp); return res; } -int main(int argc, char **argv) +// append new entry to the end of the csv +void append_entry(const char *name, const char *ep) { - FILE *fp = fopen(filename, "rb"); - + FILE *fp = fopen(filename, "a"); if (fp == NULL) { - fprintf(stderr, "No such file\n"); + fprintf(stderr, "ERROR: no such file\n"); + exit(EXIT_FAILURE); + } + + entry_t *entry = malloc(sizeof(entry_t)); + strncpy(entry->name, name, sizeof(entry->name)); + strncpy(entry->episode, ep, sizeof(entry->episode)); + fprintf(fp, "%s,%s\n", entry->name, entry->episode); +} + +// edit the episode number of an anime +void edit_entry(const char *name, const char *new_ep) +{ + FILE *fp_old = fopen(filename, "r"); + FILE *fp_new = fopen("temp.csv", "w"); + if (fp_old == NULL || fp_new == NULL) { + fprintf(stderr, "ERROR: no such file\n"); exit(EXIT_FAILURE); } + char line[100]; + while (fgets(line, sizeof(line), fp_old)) { + char *tmp = strdup(line); + char *old_name = getfield(tmp, 1); + tmp = strdup(line); + char *old_ep = getfield(tmp, 2); + + if (strcasestr(old_name, name) != NULL) { + fprintf(fp_new, "%s,%s\n", old_name, new_ep); + } else { + fprintf(fp_new, "%s,%s", old_name, old_ep); + } + free(tmp); + } + remove(filename); + rename("temp.csv", filename); + fclose(fp_old); + fclose(fp_new); +} + +int main(int argc, char **argv) +{ mode_e mode = PRINT_MODE; int opt; - while ((opt = getopt(argc, argv, "sae")) != -1) { + while ((opt = getopt(argc, argv, "msae")) != -1) { switch (opt) { + case 'm': mode = MATCH_MODE; break; case 's': mode = SEARCH_MODE; break; case 'a': mode = APPEND_MODE; break; case 'e': mode = EDIT_MODE; break; default: print_help(); - fclose(fp); exit(EXIT_FAILURE); } } - if (mode == PRINT_MODE) { - print_all(fp); - fclose(fp); - exit(EXIT_SUCCESS); - } - - if (optind >= argc) { + if (optind >= argc && mode != PRINT_MODE) { fprintf(stderr, "ERROR: missing argument\n"); print_help(); - fclose(fp); exit(EXIT_FAILURE); } - - size_t buffer_size = strlen(argv[optind]) + 1; - char *selection = (char*)malloc(buffer_size); - if (selection == NULL) { - fprintf(stderr, "Failed to allocate memory for buffer!\n"); + if (optind == 1 && argc == 2) { + fprintf(stderr, "ERROR: no option for argument given\n"); + print_help(); exit(EXIT_FAILURE); } - - strncpy(selection, argv[optind], buffer_size - 1); - selection[buffer_size - 1] = '\0'; - + switch (mode) { + case MATCH_MODE: + print_matches(argv[optind]); + break; case SEARCH_MODE: - print_matches(fp, selection); + // maybe useful for sanitizing input, but not needed for now + // + // size_t buffer_size = strlen(argv[optind]) + 1; + // char *selection = (char*)malloc(buffer_size); + + // if (selection == NULL) { + // fprintf(stderr, "ERROR: failed to allocate memory for buffer\n"); + // exit(EXIT_FAILURE); + // } + + // strncpy(selection, argv[optind], buffer_size - 1); + // selection[buffer_size - 1] = '\0'; + // [...] + // free(selection); + + entry_t *res = get_entry(argv[optind]); + if (res->name[0] == '\0') { + printf("Entry not found"); + break; + } + printf("Name: %s Episode: %s", res->name, res->episode); break; case APPEND_MODE: + append_entry(argv[optind], argv[optind+1]); + break; case EDIT_MODE: + edit_entry(argv[optind], argv[optind+1]); + break; + case PRINT_MODE: + print_all(); + break; default: print_help(); break; } - - free(selection); - fclose(fp); - return 0; } |