1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // main.cc -- |
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8 | // |
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9 | // Author : Peter A. Buhr |
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10 | // Created On : Wed Jun 28 22:57:26 2017 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Thu Jun 29 13:09:32 2017 |
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13 | // Update Count : 58 |
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14 | // |
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15 | |
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16 | #include <iostream> |
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17 | #include <fstream> |
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18 | #include <string> |
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19 | using namespace std; |
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20 | #include <unistd.h> // close |
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21 | #include <getopt.h> // getopt |
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22 | #include "filter.h" |
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23 | |
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24 | extern FILE * yyin; |
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25 | extern int yydebug; |
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26 | extern int yyparse( void ); |
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27 | |
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28 | bool parse_cmdline( int argc, char * argv[] ) { |
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29 | enum { Html, Identity, Latex, Nocode, ParseTree, }; |
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30 | |
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31 | static struct option long_opts[] = { |
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32 | { "html", no_argument, nullptr, Html }, |
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33 | { "identity", no_argument, nullptr, Identity }, |
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34 | { "latex", no_argument, nullptr, Latex }, |
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35 | { "nocode", no_argument, nullptr, Nocode }, |
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36 | { "parse-tree", no_argument, nullptr, ParseTree }, |
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37 | { nullptr, 0, nullptr, 0 } |
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38 | }; // long_opts |
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39 | int long_index; |
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40 | |
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41 | opterr = 0; // (global) prevent getopt from printing error messages |
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42 | |
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43 | int c; |
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44 | while ( (c = getopt_long( argc, argv, "hilnp", long_opts, &long_index )) != -1 ) { |
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45 | switch ( c ) { |
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46 | case Html: |
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47 | case 'h': |
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48 | filter = HTML; |
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49 | break; |
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50 | case Identity: |
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51 | case 'i': |
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52 | filter = ::Identity; |
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53 | break; |
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54 | case Latex: |
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55 | case 'l': |
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56 | filter = LaTeX; |
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57 | break; |
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58 | case Nocode: |
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59 | case 'n': |
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60 | filter = ::Nocode; |
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61 | break; |
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62 | case ParseTree: |
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63 | case 'p': |
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64 | filter = Parse_Tree; |
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65 | case '?': |
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66 | if ( optopt ) { // short option ? |
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67 | cerr << "Unknown option: -" << (char)optopt << endl; |
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68 | } else { // long option |
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69 | cerr << "Unknown option: " << argv[optind - 1] << endl; |
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70 | } // if |
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71 | return false; |
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72 | default: |
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73 | abort(); |
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74 | } // switch |
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75 | } // while |
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76 | |
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77 | if ( optind != argc ) { // input files ? |
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78 | if ( optind == argc - 1 ) { // any commands after the flags ? => input file name |
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79 | yyin = fopen( argv[ optind ], "r" ); |
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80 | if ( yyin == nullptr ) { |
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81 | cerr << "Open failure for input file \"" << argv[ optind ] << "\"" << endl; |
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82 | return false; |
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83 | } // if |
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84 | } else { |
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85 | cerr << "Too many input files " << argv[ optind + 1 ] << endl; |
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86 | return false; |
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87 | } // if |
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88 | } // if |
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89 | return true; |
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90 | } // parse_cmdline |
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91 | |
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92 | int main( int argc, char *argv[] ) { |
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93 | yyin = stdin; // defaults |
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94 | filter = Nocode; |
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95 | |
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96 | if ( ! parse_cmdline( argc, argv ) ) { |
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97 | cerr << "Usage: " << argv[0] |
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98 | << " [" |
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99 | << "-h/--html | " |
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100 | << "-i/--identity | " |
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101 | << "-l/--latex | " |
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102 | << "-n/--nocode | " |
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103 | << "-p/--parse-tree" |
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104 | << "] [input-file]" |
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105 | << endl; |
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106 | exit( EXIT_FAILURE ); // TERMINATE |
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107 | } // if |
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108 | |
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109 | //yydebug = 1; |
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110 | yyparse(); |
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111 | |
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112 | if ( yyin != stdin ) fclose( yyin ); // close file, do not delete cin! |
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113 | } // main |
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114 | |
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115 | // Local Variables: // |
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116 | // mode: c++ // |
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117 | // tab-width: 4 // |
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118 | // compile-command: "make install" // |
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119 | // End: // |
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