cline: cline.c@28319b20968c (annotated)

cline.c@28319b20968c (annotated)

cline.c

Mon, 30 May 2011 08:45:08 +0200

author: Mike Becker <universe@uap-core.de>
date: Mon, 30 May 2011 08:45:08 +0200
changeset 8: 28319b20968c
parent 7: 1b55f3fa52c9
child 9: 1dd63a32ffc4
child 10: ecf787666f44
permissions: -rw-r--r--

encapsulated common operations

 #include "cline.h"
 #include "functions.h"
 suffix_list_t* new_suffix_list_t() {
   suffix_list_t* suffixList = malloc(sizeof(suffix_list_t*));
   suffixList->count = 0;
   suffixList->items = NULL;
 }
 void destroy_suffix_list_t(suffix_list_t* list) {
   while (--list->count >= 0) {
     free(list->items[list->count]);
   }
   free(list);
 }
 void add_suffix(suffix_list_t* list, char* item) {
   char** reallocated_list =
     realloc(list->items, sizeof(char**) * list->count + 1);
   if (reallocated_list != NULL) {
     list->items = reallocated_list;
     list->items[list->count] = item;
     list->count++;
   }
 }
 settings_t* new_settings_t() {
   settings_t *settings = malloc(sizeof(settings_t*));
   if (settings != NULL) {
   #ifdef _WIN32
     settings->fileSeparator      = '\\';
   #else
     settings->fileSeparator      = '/';
   #endif /* _WIN32 */
     settings->recursive          = false;
     settings->includeSuffixes    = false;
     settings->matchesOnly        = false;
     settings->suffixList         = new_suffix_list_t();
   }
   return settings;
 }
 void destroy_settings_t(settings_t* settings) {
   destroy_suffix_list_t(settings->suffixList);
   free(settings);
 }
 void printHelpText(const char* prgName) {
   // Help text
   const char* helpText =
     "\nUsage:"
     "\n      %s [-hrm][-s suffix][<directory>]"
     "\n      %s [-hrm][-S suffix][<directory>]"
     "\n\nCounts the line terminator characters (\\n) within all"
     " files in the specified\ndirectory."
     "\n\nOptions:"
     "\n  -h, --help          - this help text"
     "\n  -m                  - print information about matching files only"
     "\n  -s <suffixes>       - only count files with these suffixes (separated"
     "\n                        by commas)"
     "\n  -S <suffixes>       - count any file except those with these suffixes"
     "\n                        (separated by commas)"
     "\n  -r, -R              - includes subdirectories"
     "\n\n"
     "The default call without any options is:"
     "\n  %s ./\n"
     "So each file in the working directory is counted. If you want to count C"
     "\nsource code in your working directory and its subdirectories, type:"
     "\n  %s -rs .c\n";
   printf(helpText, prgName, prgName, prgName, prgName);
 }
 int exit_with_help(char* prgName, settings_t* settings, int code) {
   printHelpText(prgName);
   destroy_settings_t(settings);
   return code;
 }
 int main(int argc, char** argv) {
   // Settings
   settings_t *settings = new_settings_t();
   if (settings == NULL) {
     fprintf(stderr, "Memory allocation failed.\n");
     return 1;
   }
   // Program name
   char* prgName = strrchr(argv[0], settings->fileSeparator);
   if (prgName == NULL) {
     prgName = argv[0];
   } else {
     prgName++;
   }
   // Get arguments
   char* directory = "./";
   char* suffix = " ";
   bool showHelp = false;
   int checked = 0;
   for (int t = 1 ; t < argc ; t++) {
     int argflags = checkArgument(argv[t], "hsSrRm");
     // s
     if ((argflags & 2) > 0) {
       if (registerArgument(&checked, 6)) {
         return exit_with_help(prgName, settings, 1);
       }
       settings->includeSuffixes = true;
       t++;
       if (t >= argc) {
         return exit_with_help(prgName, settings, 1);
       }
       suffix = argv[t];
     }
     // S
     if ((argflags & 4) > 0) {
       if (registerArgument(&checked, 6)) {
         return exit_with_help(prgName, settings, 1);
       }
       settings->includeSuffixes = false;
       t++;
       if (t >= argc) {
         return exit_with_help(prgName, settings, 1);
       }
       suffix = argv[t];
     }
     // h
     if ((argflags & 1) > 0 || strcmp(argv[t], "--help") == 0) {
       if (registerArgument(&checked, 1)) {
         return exit_with_help(prgName, settings, 1);
       }
       showHelp = true;
     }
     // r, R
     if ((argflags & 24) > 0) {
       if (registerArgument(&checked, 24)) {
         return exit_with_help(prgName, settings, 1);
       }
       settings->recursive = true;
     }
     // m
     if ((argflags & 32) > 0) {
       if (registerArgument(&checked, 32)) {
         return exit_with_help(prgName, settings, 1);
       }
       settings->matchesOnly = true;
     }
     // Path
     if (argflags == 0) {
       if (registerArgument(&checked, 1024)) {
         return exit_with_help(prgName, settings, 1);
       }
       directory = argv[t];
     }
   }
   // Show help and quit
   if (showHelp) {
     return exit_with_help(prgName, settings, 0);
   }
   // Find tokens
   char* finder = strtok(suffix, ",");
   while (finder != NULL) {
     add_suffix(settings->suffixList, finder);
     finder = strtok(NULL, ",");
   }
   // Open directory
   DIR *dir = opendir(directory);
   if (dir == NULL) {
     perror("Operation failed");
     destroy_settings_t(settings);
     return 1;
   }
   // Scan directory
   int lines = scanDirectory(dir, 0, directory, settings);
   closedir(dir);
   destroy_settings_t(settings);
   // Print double line and line count
   #ifdef _WIN32
     const int columns = 79;
   #else
     const int columns = 80;
   #endif /* _WIN32 */
   for (int t = 0 ; t < columns ; t++) {
     printf("=");
   }
   #ifdef _WIN32
     printf("\n%73d lines\n", lines);
   #else
     printf("\n%74d lines\n", lines);
   #endif /* _WIN32 */
   return 0;
 }

Mercurial > hg > cline / annotate

cline.c@28319b20968c (annotated)

cline.c