Now parsing commandline arguments.
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156f8de5c0
commit
e9bd5bcdd0
@ -5,7 +5,7 @@ if(CMAKE_BUILD_TYPE STREQUAL "")
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set(CMAKE_BUILD_TYPE RelWithDebInfo)
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endif()
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set(CMAKE_C_FLAGS "-std=gnu99 -Wall -Wextra -Werror -Wpedantic -Wmissing-declarations -Wfatal-errors -pedantic-errors")
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set(CMAKE_C_FLAGS "-std=c11 -Wall -Wextra -Werror -Wpedantic -Wfatal-errors -Wmissing-declarations -pedantic-errors")
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS} -g -O0")
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS} -O3")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS} -g -O3")
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70
src/Main.c
70
src/Main.c
@ -1,14 +1,74 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <stdbool.h>
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#include <getopt.h>
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#include <unistd.h>
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// 0 = false;
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// 1 = true;
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char version[16] = "v0.5";
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int verbose = 0;
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const char *version = "v0.5";
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bool helpFlag = false;
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bool versionFlag = false;
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bool verboseFlag = false;
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char *infile = NULL;
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inline void printHelp();
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int main(int argc, char **argv) {
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int arg;
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while((arg = getopt(argc, argv, "hvVf:")) != -1) {
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switch(arg) {
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case 'h':
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helpFlag = true;
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break;
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case 'v':
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verboseFlag = true;
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break;
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case 'V':
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versionFlag = true;
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break;
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case 'f':
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infile = optarg;
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break;
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case '?':
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if(optopt == 'f') {
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fprintf(stderr, "Option -%c requires an argument.\n", optopt);
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} else if(isprint(optopt)) {
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fprintf(stderr, "Unknown option `-%c'.\n", optopt);
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} else {
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fprintf(stderr, "Unknown character `\\x%x'.\n", optopt);
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}
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return 1;
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default:
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abort();
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}
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}
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if(helpFlag) {
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printHelp();
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return 0;
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} else if(versionFlag) {
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printf("%s\n", version);
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return 0;
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}
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int main(/*int argc, char **argv*/) {
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printf("MMMCalc %s, Copyright (c) 2016 Nicolás A. Ortega.\n", version);
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printf("This program comes with ABSOLUTELY NO WARRANTY.\n");
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printf("This program is free software and you are welcome to redistribute\n");
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printf("under the terms and conditions of the GNU GPLv3 or higher.\n\n");
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return 0;
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}
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void printHelp() {
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printf("Usage: mmmcalc [options]\n");
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printf("Options:\n");
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printf(" -f <file> -- The file to read variables from.\n");
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printf(" -h -- Show this help information.\n");
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printf(" -v -- Be verbose, prints the equations used.\n");
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printf(" -V -- Print the version number.\n");
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}
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