universe@10: /*
universe@10:  * cline.c
universe@10:  *
universe@10:  *  Created on: 23.05.2011
universe@20:  *      Author: Mike
universe@10:  */
universe@10: 
universe@3: #include "cline.h"
universe@10: #include "scanner.h"
universe@10: #include "settings.h"
universe@12: #include "arguments.h"
universe@16: #include "stream.h"
universe@27: #include "regex_parser.h"
universe@0: 
universe@12: void printHelpText() {
universe@0:   const char* helpText = 
universe@1:     "\nUsage:"
universe@27:     "\n      cline [Options] [Directory]"
universe@27:     "\n      cline [Options] [Directory]"
universe@0:     "\n\nCounts the line terminator characters (\\n) within all"
universe@0:     " files in the specified\ndirectory."
universe@0:     "\n\nOptions:"
universe@21:     "\n  -b <level>          - binary file heuristics level (default medium)"
universe@21:     "\n                        One of: ignore low medium high"
universe@28:     "\n  -E <pattern>        - Excludes any line matching the <pattern>"
universe@27:     "\n  -e <start> <end>    - Excludes lines between <start> and <end>"
universe@28:     "\n                        You may use these options multiple times"
universe@0:     "\n  -h, --help          - this help text"
universe@1:     "\n  -m                  - print information about matching files only"
universe@1:     "\n  -s <suffixes>       - only count files with these suffixes (separated"
universe@0:     "\n                        by commas)"
universe@1:     "\n  -S <suffixes>       - count any file except those with these suffixes"
universe@0:     "\n                        (separated by commas)"
universe@1:     "\n  -r, -R              - includes subdirectories"
universe@14:     "\n  -v, --version       - print out version information"
universe@16:     "\n  -V                  - turn verbose output off, print the result only"
universe@0:     "\n\n"
universe@1:     "The default call without any options is:"    
universe@28:     "\n  cline ./\n\n"
universe@7:     "So each file in the working directory is counted. If you want to count C"
universe@7:     "\nsource code in your working directory and its subdirectories, type:"
universe@27:     "\n  cline -rs .c\n"
universe@28:     "\nIf you want to exclude comment lines, you may use the -e/-E option."
universe@27:     "\nAfter a line matches the regex pattern <start> any following line is"
universe@28:     "\nnot counted unless a line matches the <end> pattern. A line is still "
universe@28:     "\ncounted when it does not start or end with the respective patterns."
universe@28:     "\nPlease note, that cline does not remove whitespace characters as this"
universe@28:     "\nmight not be reasonable in some cases."
universe@28:     "\n\nExample (C comments):"
universe@28:     "\n  cline -s .c,.h -E \"\\s*//\" -e \"\\s*/\\*\" \"\\*/\\s*\"";
universe@1:     
universe@12:   printf(helpText);
universe@1: }
universe@1: 
universe@14: int exit_with_version(settings_t* settings) {
universe@16:   printf("cline - Revision: %s", VERSION);
universe@14:   destroy_settings_t(settings);
universe@14:   return 0;
universe@14: }
universe@14: 
universe@12: int exit_with_help(settings_t* settings, int code) {
universe@12:   printHelpText();
universe@8:   destroy_settings_t(settings);
universe@8:   return code;
universe@8: }
universe@8: 
universe@1: int main(int argc, char** argv) {
universe@0: 
universe@22:   /* Settings */
universe@3:   settings_t *settings = new_settings_t();
universe@5:   if (settings == NULL) {
universe@5:     fprintf(stderr, "Memory allocation failed.\n");
universe@5:     return 1;
universe@5:   }
universe@3: 
universe@22:   /* Get arguments */
universe@7:   char* directory = "./";
universe@30:   char* includeSuffix = NULL;
universe@30:   char* excludeSuffix = NULL;
universe@8:   int checked = 0;
universe@0: 
universe@1:   for (int t = 1 ; t < argc ; t++) {
universe@1: 
universe@28:     int argflags = checkArgument(argv[t], "hsSrRmvVbeE");
universe@30:     int paropt = 0;
universe@1: 
universe@30:     /* s */
universe@30:     if ((argflags & 2) > 0) {
universe@30:       if (!checkParamOpt(&paropt) || registerArgument(&checked, 2)) {
universe@12:         return exit_with_help(settings, 1);
universe@0:       }
universe@1:       t++;
universe@1:       if (t >= argc) {
universe@12:         return exit_with_help(settings, 1);
universe@1:       }
universe@30:       includeSuffix = argv[t];
universe@30:     }
universe@30:     /* S */
universe@30:     if ((argflags & 4) > 0) {
universe@30:       if (!checkParamOpt(&paropt) || registerArgument(&checked, 4)) {
universe@30:         return exit_with_help(settings, 1);
universe@30:       }
universe@30:       t++;
universe@30:       if (t >= argc) {
universe@30:         return exit_with_help(settings, 1);
universe@30:       }
universe@30:       excludeSuffix = argv[t];
universe@0:     }
universe@22:     /* h */
universe@1:     if ((argflags & 1) > 0 || strcmp(argv[t], "--help") == 0) {
universe@14:       return exit_with_help(settings, 0);
universe@0:     }
universe@22:     /* r, R */
universe@1:     if ((argflags & 24) > 0) {
universe@8:       if (registerArgument(&checked, 24)) {
universe@12:         return exit_with_help(settings, 1);
universe@0:       }
universe@3:       settings->recursive = true;
universe@0:     }
universe@22:     /* m */
universe@1:     if ((argflags & 32) > 0) {
universe@8:       if (registerArgument(&checked, 32)) {
universe@12:         return exit_with_help(settings, 1);
universe@0:       }
universe@3:       settings->matchesOnly = true;
universe@0:     }
universe@22:     /* v */
universe@14:     if ((argflags & 64) > 0 || strcmp(argv[t], "--version") == 0) {
universe@14:       return exit_with_version(settings);
universe@14:     }
universe@22:     /* V */
universe@16:     if ((argflags & 128) > 0) {
universe@16:       if (registerArgument(&checked, 128)) {
universe@16:         return exit_with_help(settings, 1);
universe@16:       }
universe@16:       settings->verbose = false;
universe@16:     }
universe@22:     /* b */
universe@21:     if ((argflags & 256) > 0) {
universe@30:       if (!checkParamOpt(&paropt) || registerArgument(&checked, 256)) {
universe@21:         return exit_with_help(settings, 1);
universe@21:       }
universe@21:       t++;
universe@21:       if (t >= argc) {
universe@21:         return exit_with_help(settings, 1);
universe@21:       }
universe@24:       if (strcasecmp(argv[t], "ignore") == 0) {
universe@21:         settings->bfileHeuristics->level = BFILE_IGNORE;
universe@24:       } else if (strcasecmp(argv[t], "low") == 0) {
universe@21:         settings->bfileHeuristics->level = BFILE_LOW_ACCURACY;
universe@24:       } else if (strcasecmp(argv[t], "medium") == 0) {
universe@21:         settings->bfileHeuristics->level = BFILE_MEDIUM_ACCURACY;
universe@24:       } else if (strcasecmp(argv[t], "high") == 0) {
universe@21:         settings->bfileHeuristics->level = BFILE_HIGH_ACCURACY;
universe@21:       } else {
universe@21:         return exit_with_help(settings, 1);
universe@21:       }
universe@21:     }
universe@28:     /* e */
universe@27:     if ((argflags & 512) > 0) {
universe@30:       if (!checkParamOpt(&paropt) || t + 2 >= argc) {
universe@27:         return exit_with_help(settings, 1);
universe@27:       }
universe@27:       t++; add_string(settings->regex->pattern_list, argv[t]);
universe@27:       t++; add_string(settings->regex->pattern_list, argv[t]);
universe@27:     }
universe@28:     /* E */
universe@28:     if ((argflags & 1024) > 0) {
universe@28:       t++;
universe@30:       if (!checkParamOpt(&paropt) || t >= argc) {
universe@28:         return exit_with_help(settings, 1);
universe@28:       }
universe@28:       add_string(settings->regex->pattern_list, argv[t]);
universe@28:       add_string(settings->regex->pattern_list, "$");
universe@28:     }
universe@22:     /* Path */
universe@1:     if (argflags == 0) {
universe@8:       if (registerArgument(&checked, 1024)) {
universe@12:         return exit_with_help(settings, 1);
universe@0:       }
universe@0:       directory = argv[t];
universe@0:     }
universe@0:   }
universe@0: 
universe@22:   /* Configure output */
universe@16:   if (!settings->verbose) {
universe@16:     close_stdout();
universe@16:   }
universe@16: 
universe@22:   /* Find tokens */
universe@30:   parseCSL(includeSuffix, settings->includeSuffixes);
universe@30:   parseCSL(excludeSuffix, settings->excludeSuffixes);
universe@0: 
universe@22:   /* Scan directory */
universe@28:   if (regex_compile_all(settings->regex)) {
universe@28:     int lines = scanDirectory((scanner_t){directory, 0}, settings);
universe@28:     destroy_settings_t(settings);
universe@0: 
universe@28:     /* Print double line and line count */
universe@28:     for (int t = 0 ; t < 79 ; t++) {
universe@28:       printf("=");
universe@28:     }
universe@28:     printf("\n%73d lines\n", lines);
universe@0: 
universe@28:     if (settings->confusing_lnlen && settings->regex->pattern_list->count > 0) {
universe@28:       printf("\nSome files contain too long lines.\n"
universe@28:         "The regex parser currently supports a maximum line length of %d."
universe@28:         "\nThe result might be wrong.\n", REGEX_MAX_LINELENGTH);
universe@28:     }
universe@25: 
universe@28:     if (!settings->verbose) {
universe@28:       reopen_stdout();
universe@28:       printf("%d", lines);
universe@28:     }
universe@16:   }
universe@16: 
universe@16:   fflush(stdout);
universe@28:   fflush(stderr);
universe@0:   return 0;
universe@0: }