mirror of
https://github.com/KingDuckZ/kamokan.git
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Add source-highlight to docs.
It's useful as reference.
This commit is contained in:
parent
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1 changed files with 594 additions and 0 deletions
594
docs/source-highlight.cc
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594
docs/source-highlight.cc
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/*
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* Copyright (C) 1999-2009 Lorenzo Bettini <http://www.lorenzobettini.it>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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// this is glib related so don't use it when compiling with qmake
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#include "progname.h"
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#else
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#define set_program_name(x) ;
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#endif
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#include <cstdlib>
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#include <iostream>
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#include <exception>
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#include <boost/shared_ptr.hpp>
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#include "srchilite/sourcehighlight.h"
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#include "srchilite/fileutil.h"
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#include "srchilite/verbosity.h"
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#include "srchilite/langmap.h"
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#include "srchilite/languageinfer.h"
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#include "srchilite/utils.h"
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#include "srchilite/highlightbuilderexception.h"
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#include "srchilite/parserexception.h"
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#include "srchilite/debuglistener.h"
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#include "srchilite/ctagsmanager.h"
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#include "srchilite/stopwatch.h"
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#include "srchilite/lineranges.h"
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#include "srchilite/regexranges.h"
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#include "srchilite/versions.h"
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#include "srchilite/settings.h"
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#include "cmdline.h"
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using namespace std;
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using namespace srchilite;
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/**
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* how language inference should be made: NOINFERENCE = no inference at all,
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* INFERFIRST = inference has priority (e.g., if --infer-lang is specified),
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* INFERATLAST = try inference as the last chance
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*/
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enum InferPolicy {
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NOINFERENCE = 0, INFERFIRST, INFERATLAST
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};
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static void print_copyright();
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static void print_reportbugs();
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static void print_version();
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static string inferLang(const string &inputFileName);
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static string getMappedLang(const string &s, LangMap &langmap);
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static void printError(const string &s);
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static void print_cgi_header();
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/**
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* Exits for a generic error (i.e., file not found)
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*/
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static void exitError(const string &s);
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static string getLangFileName(InferPolicy infer, const string &inputFileName,
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const string &langFileName, const string &langName, LangMap &langMap);
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static bool verbose = false;
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static bool failsafe = false;
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#ifdef BUILD_AS_CGI
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#include "envmapper.h"
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#endif // BUILD_AS_CGI
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/**
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* Print progress status information (provided --quiet is not specified)
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* @param message
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*/
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#define PROGRESSINFO(message) if (!args_info.quiet_given) cerr << message;
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int main(int argc, char * argv[]) {
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set_program_name(argv[0]);
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gengetopt_args_info args_info; // command line structure
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bool is_cgi = false;
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#ifdef BUILD_AS_CGI
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// map environment to parameters if used as CGI
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char **temp_argv;
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temp_argv = map_environment(&argc, argv);
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is_cgi = temp_argv != argv;
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argv = temp_argv;
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#endif // BUILD_AS_CGI
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if (cmdline_parser(argc, argv, &args_info) != 0) {
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// calls cmdline parser. The user gived bag args if it doesn't return -1
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return EXIT_FAILURE;
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}
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if (args_info.version_given) {
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print_version();
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print_copyright();
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cmdline_parser_free(&args_info);
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return EXIT_SUCCESS;
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}
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if (args_info.help_given || args_info.detailed_help_given) {
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cout << "GNU ";
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if (args_info.detailed_help_given) {
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cmdline_parser_print_detailed_help();
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} else {
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cmdline_parser_print_help();
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}
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print_reportbugs();
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cmdline_parser_free(&args_info);
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return EXIT_SUCCESS;
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}
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// set possible line ranges
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boost::shared_ptr<LineRanges> lineRanges;
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if (args_info.line_range_given) {
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lineRanges = boost::shared_ptr<LineRanges>(new LineRanges);
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for (unsigned int i = 0; i < args_info.line_range_given; ++i) {
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if (lineRanges->addRange(args_info.line_range_arg[i]) != NO_ERROR) {
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string invalid_range = args_info.line_range_arg[i];
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cmdline_parser_free(&args_info);
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exitError("invalid line range: " + invalid_range);
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}
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}
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}
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// set possible regex ranges
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boost::shared_ptr<RegexRanges> regexRanges;
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if (args_info.regex_range_given) {
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regexRanges = boost::shared_ptr<RegexRanges>(new RegexRanges);
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for (unsigned int i = 0; i < args_info.regex_range_given; ++i) {
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if (!regexRanges->addRegexRange(args_info.regex_range_arg[i])) {
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string invalid_range = args_info.regex_range_arg[i];
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cmdline_parser_free(&args_info);
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exitError("invalid regex range: " + invalid_range);
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}
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}
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}
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if (args_info.range_context_given) {
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lineRanges->setContextLines(args_info.range_context_arg);
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}
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// if a stopwatch is created, when it is deleted (automatically
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// since we're using a shared pointer, it will print the
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// elapsed seconds.
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boost::shared_ptr<StopWatch> stopwatch;
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if (args_info.statistics_given) {
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stopwatch = boost::shared_ptr<StopWatch>(new StopWatch);
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}
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verbose = args_info.verbose_given;
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failsafe = args_info.failsafe_given;
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string inputFile;
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string outputFile;
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string srcLang;
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string outputFormat;
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string langFile;
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string outLangFile;
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string dataDir;
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string outputDir;
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Verbosity::setVerbosity(verbose);
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if (args_info.input_given)
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inputFile = args_info.input_arg;
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if (args_info.output_given)
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outputFile = args_info.output_arg;
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// for cgi force output to standard output
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if (is_cgi)
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outputFile = "STDOUT";
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if (args_info.src_lang_given)
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srcLang = args_info.src_lang_arg;
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if (args_info.lang_def_given)
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langFile = args_info.lang_def_arg;
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if (args_info.outlang_def_given)
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outLangFile = args_info.outlang_def_arg;
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// the default for output format is html
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outputFormat = args_info.out_format_arg;
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if (args_info.data_dir_given) {
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dataDir = args_info.data_dir_arg;
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}
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if (args_info.output_dir_given) {
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outputDir = args_info.output_dir_arg;
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}
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/*
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the starting default path to search for files is computed at
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run-time: it is
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the path of the binary + ".." + RELATIVEDATADIR
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this should make the package relocable (i.e., not stuck
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with a fixed installation directory).
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Of course, the GNU standards for installation directories
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should be followed, but this is not a problem if you use
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configure and make install features.
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If no path is specified in the running program we go back to
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the absolute datadir.
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*/
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// this is defined in fileutil.cc
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string prefix_dir = get_file_path(argv[0]);
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if (prefix_dir.size())
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start_path = get_file_path(argv[0]) + RELATIVEDATADIR;
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else
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start_path = Settings::retrieveDataDir();
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// if datadir is not specified, we rely on start_path?
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try {
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// initialize map files
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LangMap langmap(dataDir, args_info.lang_map_arg);
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// just print the input language list and associations
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if (args_info.lang_list_given) {
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langmap.open();
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langmap.print();
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return (EXIT_SUCCESS);
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}
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LangMap outlangmap(dataDir, args_info.outlang_map_arg);
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// just print the input language list and associations
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if (args_info.outlang_list_given) {
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outlangmap.open();
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outlangmap.print();
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return (EXIT_SUCCESS);
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}
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string cssUrl;
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if (args_info.css_given)
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cssUrl = args_info.css_arg;
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string docTitle;
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if (args_info.title_given)
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docTitle = args_info.title_arg;
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if (args_info.check_lang_given || args_info.check_outlang_given
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|| args_info.show_regex_given
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|| args_info.show_lang_elements_given
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|| args_info.lang_list_given || args_info.outlang_list_given) {
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// FIXME just a bogus outlang file specification not to search in outlang.map
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outLangFile = "html.outlang";
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}
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// initialize the main source highlight object
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SourceHighlight sourcehighlight(getLangFileName(NOINFERENCE,
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outputFile, outLangFile, outputFormat
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+ (cssUrl.size() ? +"-css" : ""), outlangmap));
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// and sets all its properties according to the command line args
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sourcehighlight.setDataDir(dataDir);
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boost::shared_ptr<DebugListener> debugListener;
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// if a simple check is required...
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if (args_info.check_lang_given) {
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cout << "checking " << args_info.check_lang_arg << "... ";
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sourcehighlight.checkLangDef(args_info.check_lang_arg);
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// if we're here, everything went fine!
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cout << "OK" << endl;
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// otherwise an exception has already been thrown
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return (EXIT_SUCCESS);
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}
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if (args_info.check_outlang_given) {
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cout << "checking " << args_info.check_outlang_arg << "... ";
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sourcehighlight.checkOutLangDef(args_info.check_outlang_arg);
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// if we're here, everything went fine!
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cout << "OK" << endl;
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// otherwise an exception has already been thrown
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return (EXIT_SUCCESS);
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}
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// just print the highlightstate if show-regex is specified
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if (args_info.show_regex_given) {
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sourcehighlight.printHighlightState(args_info.show_regex_arg, cout);
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return (EXIT_SUCCESS);
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}
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// just print the lang elems if show-lang-elements is specified
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if (args_info.show_lang_elements_given) {
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sourcehighlight.printLangElems(args_info.show_lang_elements_arg,
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cout);
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return (EXIT_SUCCESS);
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}
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sourcehighlight.setGenerateEntireDoc((!args_info.no_doc_given)
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&& (args_info.doc_given || (docTitle.size()) || cssUrl.size()));
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sourcehighlight.setStyleDefaultFile(args_info.style_defaults_arg);
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sourcehighlight.setStyleFile(args_info.style_file_arg);
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if (args_info.style_css_file_given)
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sourcehighlight.setStyleCssFile(args_info.style_css_file_arg);
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sourcehighlight.setGenerateVersion(args_info.gen_version_flag != 0);
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sourcehighlight.setCss(cssUrl);
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sourcehighlight.setTitle(docTitle);
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sourcehighlight.setOutputDir(outputDir);
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sourcehighlight.setLineRanges(lineRanges.get());
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sourcehighlight.setRegexRanges(regexRanges.get());
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sourcehighlight.setBinaryOutput(args_info.binary_output_given);
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if (args_info.debug_langdef_given) {
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debugListener = boost::shared_ptr<DebugListener>(new DebugListener);
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const string debugType = args_info.debug_langdef_arg;
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if (debugType == "interactive")
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debugListener->setInteractive(true);
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sourcehighlight.setHighlightEventListener(debugListener.get());
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// during debugging disable optimizations
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sourcehighlight.setOptimize(false);
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}
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int tabs = 0;
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if (args_info.tab_given) {
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tabs = args_info.tab_arg;
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}
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if (args_info.header_given)
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sourcehighlight.setHeaderFileName(args_info.header_arg);
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if (args_info.footer_given)
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sourcehighlight.setFooterFileName(args_info.footer_arg);
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bool generateLineNumbers = args_info.line_number_given
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|| args_info.line_number_ref_given;
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sourcehighlight.setGenerateLineNumbers(generateLineNumbers);
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if (args_info.line_number_given) {
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// set the line number padding char (default is always '0')
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sourcehighlight.setLineNumberPad(args_info.line_number_arg[0]);
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}
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if (args_info.line_number_ref_given) {
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sourcehighlight.setGenerateLineNumberRefs(true);
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sourcehighlight.setLineNumberAnchorPrefix(
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args_info.line_number_ref_arg);
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}
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if (generateLineNumbers) {
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// when generating line numbers tabs must be translated
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// otherwise the output line will not be aligned
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// due to the presence of line numbers
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sourcehighlight.setTabSpaces(tabs ? tabs : 8);
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}
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if (tabs) {
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sourcehighlight.setTabSpaces(tabs);
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}
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// whether to give precedence to language inference
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InferPolicy inferPolicy = (args_info.infer_lang_given ? INFERFIRST
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: INFERATLAST);
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RefPosition refposition = INLINE;
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string gen_references_arg = args_info.gen_references_arg;
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if (gen_references_arg == "inline")
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refposition = INLINE;
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else if (gen_references_arg == "postline")
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refposition = POSTLINE;
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else if (gen_references_arg == "postdoc")
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refposition = POSTDOC;
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boost::shared_ptr<CTagsManager> ctagsManager;
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if (args_info.gen_references_given) {
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string ctags = args_info.ctags_arg;
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string ctags_file = args_info.ctags_file_arg;
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// build the additional arguments for the ctags command
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if (args_info.gen_references_given && ctags != "") {
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if (inputFile.size()) {
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ctags += " ";
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ctags += inputFile;
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} else if (args_info.inputs_num) {
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for (unsigned int i = 0; i < (args_info.inputs_num); ++i) {
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ctags += " ";
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ctags += args_info.inputs[i];
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}
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}
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}
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// the ctags command must be executed if --ctags is specified with an empty string
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ctagsManager = boost::shared_ptr<CTagsManager>(new CTagsManager(
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ctags_file, ctags, ctags != "", refposition));
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sourcehighlight.setCTagsManager(ctagsManager.get());
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}
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if (args_info.range_separator_given) {
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sourcehighlight.setRangeSeparator(args_info.range_separator_arg);
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}
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// OK, let's highlight!
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if (args_info.inputs_num && (args_info.input_given
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|| args_info.output_given)) {
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// do not mix command line invocation modes
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cerr << "Please, use one of the two syntaxes for invocation: "
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<< endl;
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cerr
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<< "source-highlight [OPTIONS]... -i input_file -o output_file"
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<< endl;
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cerr << "source-highlight [OPTIONS]... [FILES]..." << endl;
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exit(EXIT_FAILURE);
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}
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// for cgi we can only process one file specified with --input
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if (args_info.inputs_num && !is_cgi) {
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// the output file name is empty, but we don't want to generate to stdout
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sourcehighlight.setCanUseStdOut(false);
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// in case multiple input files were specified (without --input)
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for (unsigned int i = 0; i < (args_info.inputs_num); ++i) {
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PROGRESSINFO(string("Processing ")+ args_info.inputs[i] + " ... ");
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sourcehighlight.highlight(args_info.inputs[i], "",
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getLangFileName(inferPolicy, args_info.inputs[i],
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langFile, srcLang, langmap));
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PROGRESSINFO("created " + sourcehighlight.createOutputFileName(args_info.inputs[i]) + "\n");
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}
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} else {
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if (is_cgi)
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print_cgi_header();
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// in case only one input file was specified with --input
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sourcehighlight.highlight(inputFile, outputFile, getLangFileName(
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inferPolicy, inputFile, langFile, srcLang, langmap));
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}
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} catch (const HighlightBuilderException &e) {
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cerr << e << endl;
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exit(EXIT_FAILURE);
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} catch (const ParserException &e) {
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cerr << e << endl;
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exit(EXIT_FAILURE);
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} catch (const exception &e) {
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exitError(e.what());
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}
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cmdline_parser_free(&args_info);
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return 0;
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}
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void print_copyright() {
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int i;
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int copyright_text_length = 5;
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const char *copyright_text[] = {
|
||||
"copyright.text",
|
||||
"Copyright (C) 1999-2008 Lorenzo Bettini <http://www.lorenzobettini.it>",
|
||||
"This program comes with ABSOLUTELY NO WARRANTY.",
|
||||
"This is free software; you may redistribute copies of the program",
|
||||
"under the terms of the GNU General Public License.",
|
||||
"For more information about these matters, see the file named COPYING.",
|
||||
0 };
|
||||
|
||||
for (i = 1; i <= copyright_text_length; ++i)
|
||||
cout << copyright_text[i] << endl;;
|
||||
}
|
||||
|
||||
void print_reportbugs() {
|
||||
int i;
|
||||
int reportbugs_text_length = 3;
|
||||
const char *reportbugs_text[] = {
|
||||
"reportbugs.text",
|
||||
"",
|
||||
"Maintained by Lorenzo Bettini <http://www.lorenzobettini.it>",
|
||||
"Report bugs to <bug-source-highlight at gnu.org>",
|
||||
0 };
|
||||
|
||||
for (i = 1; i <= reportbugs_text_length; ++i)
|
||||
cout << reportbugs_text[i] << endl;
|
||||
}
|
||||
|
||||
void print_version() {
|
||||
cout << Versions::getCompleteVersion() << endl;
|
||||
}
|
||||
|
||||
string inferLang(const string &inputFileName) {
|
||||
VERBOSELN("inferring input language...");
|
||||
if (!inputFileName.size()) {
|
||||
printError("missing feature: language inference requires input file");
|
||||
return "";
|
||||
}
|
||||
|
||||
LanguageInfer languageInfer;
|
||||
|
||||
const string &result = languageInfer.infer(inputFileName);
|
||||
if (result.size()) {
|
||||
VERBOSELN("inferred input language: " + result);
|
||||
} else {
|
||||
VERBOSELN("couldn't infer input language");
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
string getMappedLang(const string &s, LangMap &langmap) {
|
||||
// OK now map it into a .lang file
|
||||
string mapped_lang = langmap.getMappedFileName(s);
|
||||
|
||||
if (!mapped_lang.size()) {
|
||||
// try the lower version
|
||||
mapped_lang = langmap.getFileName(Utils::tolower(s));
|
||||
}
|
||||
|
||||
return mapped_lang;
|
||||
}
|
||||
|
||||
string getLangFileName(InferPolicy infer, const string &inputFileName,
|
||||
const string &langFileName, const string &langName, LangMap &langMap) {
|
||||
string langFile;
|
||||
|
||||
// language inference has the precedence
|
||||
if (infer == INFERFIRST) {
|
||||
langFile = inferLang(inputFileName);
|
||||
langFile = getMappedLang(langFile, langMap);
|
||||
if (langFile.size())
|
||||
return langFile;
|
||||
}
|
||||
|
||||
// then if a lang file name was specified we're done
|
||||
if (langFileName.size())
|
||||
return langFileName;
|
||||
|
||||
// now try with the langName
|
||||
langFile = getMappedLang(langName, langMap);
|
||||
if (langFile.size())
|
||||
return langFile;
|
||||
|
||||
// otherwise try with the inputFileName (its file extension
|
||||
// and its name)
|
||||
langFile = langMap.getMappedFileNameFromFileName(inputFileName);
|
||||
if (langFile.size())
|
||||
return langFile;
|
||||
|
||||
// OK, as a last chance let's try with language infer
|
||||
if (infer == INFERATLAST) {
|
||||
langFile = getMappedLang(inferLang(inputFileName), langMap);
|
||||
if (langFile.size())
|
||||
return langFile;
|
||||
}
|
||||
|
||||
// if we're here we failed all checks
|
||||
// if failsafe is specified we default to default.lang
|
||||
if (failsafe)
|
||||
langFile = "default.lang";
|
||||
|
||||
if (!langFile.size()) {
|
||||
// if we're here we must exit with failure
|
||||
if (langName.size())
|
||||
exitError("could not find a language definition for " + langName);
|
||||
else
|
||||
exitError("could not find a language definition for input file "
|
||||
+ inputFileName);
|
||||
}
|
||||
|
||||
return langFile;
|
||||
}
|
||||
|
||||
void printError(const string &s) {
|
||||
cerr << PACKAGE << ": " << s << endl;
|
||||
}
|
||||
|
||||
void exitError(const string &s) {
|
||||
printError(s);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
void print_cgi_header() {
|
||||
cout << "Content-type: text/html\n";
|
||||
cout << "\n";
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in a new issue