--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/cline.c Mon May 23 16:42:44 2011 +0200
@@ -0,0 +1,285 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <dirent.h>
+
+static int suffixc;
+static char** suffixv;
+static bool recursive;
+static bool includeSuffixes;
+
+bool testSuffix(char* filename)
+{
+ bool ret = false;
+ int tokenlen, fnamelen = strlen(filename);
+ for (int t = 0 ; t < suffixc ; t++)
+ {
+ tokenlen = strlen(suffixv[t]);
+ if (fnamelen >= tokenlen)
+ {
+ if (strncmp(filename+fnamelen-tokenlen, suffixv[t], tokenlen) == 0)
+ {
+ ret = true;
+ break;
+ }
+ }
+ }
+ return ret ^ !includeSuffixes;
+}
+
+int scanDirectory(DIR *dir, const int spaces, char* currdir)
+{
+ DIR *subdir;
+ char* subdirname;
+ struct dirent *entry;
+ int lines, digits, a;
+ int lineSum = 0;
+
+ while ((entry = readdir(dir)) != NULL)
+ {
+ if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0)
+ {
+ // Print occurence
+ char entryname[strlen(entry->d_name)+spaces];
+ for (int t = 0 ; t < spaces ; t++)
+ {
+ entryname[t]=' ';
+ }
+ entryname[spaces] = 0;
+ strcat(entryname, entry->d_name);
+ printf("%-60s", entryname);
+
+ // Check for subdirectory
+ char subdirname[(1+strlen(currdir)+strlen(entry->d_name))];
+ strcpy(subdirname, currdir);
+ strcat(subdirname, "/");
+ strcat(subdirname, entry->d_name);
+ if ((subdir = opendir(subdirname)) != NULL)
+ {
+ printf("\n");
+ if (recursive)
+ {
+ lineSum += scanDirectory(subdir, spaces+1, subdirname);
+ }
+ closedir(subdir);
+ continue;
+ }
+
+ // Count lines
+ lines = 0;
+ char filename[(1+strlen(currdir)+strlen(entry->d_name))];
+ strcpy(filename, currdir);
+ strcat(filename, "/");
+ strcat(filename, entry->d_name);
+ if (testSuffix(filename))
+ {
+ FILE *file = fopen(filename, "r");
+ if (file == NULL)
+ {
+ perror(" File acces failed");
+ continue;
+ }
+
+ do
+ {
+ a = fgetc(file);
+
+ if (a == 10)
+ {
+ lines++;
+ }
+ } while (a != EOF);
+ fclose(file);
+
+ // Print line count
+ printf("%14d lines\n", lines);
+
+ lineSum += lines;
+ }
+ else
+ {
+ // Print hint
+ printf("%20s\n", "no match");
+ }
+ }
+ }
+ return lineSum;
+}
+
+int main(int argc, char** argv)
+{
+ // Help text
+ const char* helpText =
+ "\nUsage:\n%s [-h|--help|(-s=<suffix>|-S=<suffix>)|(-r|-R)|<directory>]"
+ "\n\nCounts the line terminator characters (\\n) within all"
+ " files in the specified\ndirectory."
+ "\n\nOptions:"
+ "\n -h, --help - this help text"
+ "\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 - excludes subdirectories"
+ "\n -r - includes subdirecotires"
+ "\n\n"
+ "The default call without any options is:"
+ "\n %s -r ./ -S=\n"
+ "That means each file in each subdirectory is counted. If you want to count"
+ "\nC source code in your working directory and its subdirectories, type:"
+ "\n %s -s=.c\n";
+
+ // Program name
+ char* prgName = strrchr(argv[0], '/');
+ if (prgName == NULL)
+ {
+ prgName = argv[0];
+ }
+ else
+ {
+ prgName++;
+ }
+
+ // Defaults
+ char* _suffix = "";
+ char* _directory = "./";
+
+ // Get arguments
+ char* directory;
+ char* suffix;
+ bool showHelp = false;
+ recursive = true;
+ includeSuffixes = false;
+ char checked = 0;
+
+ for (int t = 1 ; t < argc ; t++)
+ {
+ if (strncmp(argv[t], "-s=", 3) == 0)
+ {
+ if ((checked & 1) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ includeSuffixes = true;
+ suffix = argv[t]+3;
+ checked |= 1;
+ }
+ else if (strncmp(argv[t], "-S=", 3) == 0)
+ {
+ if ((checked & 1) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ includeSuffixes = false;
+ suffix = argv[t]+3;
+ checked |= 1;
+ }
+ else if (strcmp(argv[t], "-h") == 0 || strcmp(argv[t], "--help") == 0)
+ {
+ if ((checked & 2) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ checked |= 2;
+ showHelp = true;
+ }
+ else if (strcmp(argv[t], "-r") == 0)
+ {
+ if ((checked & 4) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ checked |= 4;
+ recursive = true;
+ }
+ else if (strcmp(argv[t], "-R") == 0)
+ {
+ if ((checked & 4) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ checked |= 4;
+ recursive = false;
+ }
+ else
+ {
+ if ((checked & 8) > 0)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return -1;
+ }
+ checked |= 8;
+ directory = argv[t];
+ }
+ }
+
+ // Show help and quit
+ if (showHelp)
+ {
+ printf(helpText, prgName, prgName, prgName);
+ return 0;
+ }
+
+ // Default values
+ if ((checked & 1) == 0)
+ {
+ suffix = _suffix;
+ }
+
+ if ((checked & 8) == 0)
+ {
+ directory = _directory;
+ }
+
+ // Find tokens
+ char* finder;
+ suffixc = 1;
+ finder = strchr(suffix, ',');
+ while (finder != NULL)
+ {
+ suffixc++;
+ finder = strchr(finder+1, ',');
+ }
+ suffixv = (char**) malloc(sizeof(suffixv)*suffixc);
+ if (suffixv == NULL)
+ {
+ fprintf(stderr, "Memory allocation failed.\n");
+ return 1;
+ }
+ finder = strtok(suffix, ",");
+ int c = 0;
+ while (finder != NULL)
+ {
+ suffixv[c] = finder;
+ c++;
+ finder = strtok(NULL, ",");
+ }
+
+ // Open directory
+ DIR *dir = opendir(directory);
+ if (dir == NULL)
+ {
+ perror("Operation failed");
+ free(suffixv);
+ return 1;
+ }
+
+ // Scan directory
+ int lines = scanDirectory(dir, 0, directory);
+
+ // Print double line and line count
+ for (int t = 0 ; t < 80 ; t++)
+ {
+ printf("=");
+ }
+ printf("\n%74d lines\n", lines);
+
+ closedir(dir);
+ free(suffixv);
+ return 0;
+}