xighlight/xighlight.c
2025-04-20 10:07:41 +00:00

124 lines
4.1 KiB
C

/// _ _ _ _ _ _
/// __ _(_) __ _| |__ | (_) __ _| |__ | |_
/// \ \/ / |/ _` | '_ \| | |/ _` | '_ \| __|
/// > <| | (_| | | | | | | (_| | | | | |_
/// /_/\_\_|\__, |_| |_|_|_|\__, |_| |_|\__|
/// |___/ |___/
///
/// Copyright (c) 1997 - Ognjen 'xolatile' Milan Robovic
///
/// xolatile@chud.cyou - xighlight - Generic source code terminal highlighter using VT100 escape sequences, very very slow...
///
/// This program is free software, free as in freedom and as in free beer, you can redistribute it and/or modify it under the terms of the GNU
/// General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version if you wish...
///
/// This program is distributed in the hope that it will be useful, but it is probably not, and without any warranty, without even the implied
/// warranty of merchantability or fitness for a particular purpose, because it is pointless. Please see the GNU (Geenoo) General Public License
/// for more details, if you dare, it is a lot of text that nobody wants to read...
#include "xtandard.h"
#include "xyntax.h"
#include "xanguage.h"
static procedure conditionally_exit (language_structure * language, syntax_structure * syntax, boolean terminate) {
syntax = syntax_deinitialize (syntax);
language = language_deinitialize (language);
if (terminate == true) {
exit (log_success);
}
}
static procedure print_common (none) {
print ("/B/4xighlight/-: /4Terminal syntax highlighter/-\n\n");
print ("\tAuthor: /4Ognjen 'xolatile' Milan Robovic/-\n");
print ("\tLicense: /4GNU//GPLv3/-\n\n");
}
static procedure print_help (none) {
print_common ();
print ("Example usage:\n\n");
print ("\t/6$ cat file.ext | xighlight [flags]/- /0---/- You need to pass language flag in this case.\n");
print ("\t/6$ xighlight [flags] < file.ext/- /0---/- You need to pass language flag in this case.\n");
print ("\t/6$ xighlight file.ext/- /0---/- Language is automatically detected in this case.\n\n");
print ("Supported languages:\n\n");
for (language_enumeration index = 0; index < language_count; ++index) {
character align [32] = "";
print ("\t/B/4%s/- /4%s/- /0---/- %s syntax highlighting\n",
language_short_option [index],
string_align_left (string_copy (align, language_long_option [index]), 9, ' '),
language_identifier [index]);
}
}
static procedure print_version (none) {
print_common ();
print ("\tVersion: /40 (Zero)/-\n");
}
integer main (integer argc, character * * argv) {
natural select = language_count;
natural length = 0;
character * buffer = null;
syntax_structure * syntax = syntax_initialize (360);
language_structure * language = language_initialize (false);
for (integer argument = 1; argument < argc; ++argument) {
if (argument_compare (argv [argument], "-h", "--help") == true) {
print_help ();
conditionally_exit (language, syntax, true);
} else if (argument_compare (argv [argument], "-v", "--version") == true) {
print_version ();
conditionally_exit (language, syntax, true);
}
for (natural index = 0; index < language_count; ++index) {
if (argument_compare (argv [argument], language_short_option [index], language_long_option [index]) == true) {
(* (language_highlighter [index])) (language, syntax);
select = index;
break;
}
}
if (file_exists (argv [argument]) == true) {
if (select == language_count) {
select = (natural) file_type (argv [argument]);
}
if (buffer == null) {
buffer = file_import (argv [argument]);
}
}
}
if (buffer == null) {
buffer = record ();
}
language_conditionally_select (language, syntax, select);
for (natural offset = 0; buffer [offset] != '\0'; offset += length) {
select = syntax_select (syntax, & buffer [offset], & length);
if (select >= syntax->count) {
echo_colour (colour_white, effect_normal);
} else {
echo_colour (syntax->colour [select], syntax->effect [select]);
}
output (& buffer [offset], length);
echo_cancel ();
}
conditionally_exit (language, syntax, false);
buffer = deallocate (buffer);
return (log_success);
}