Centaur | Reader

Reader (night2.h) https://centaur.pw/software/night/night2.h [Direct Link]
/* Night (night2)
 * 7/26/2025
 * Version 2.2
 * Jon S. <jon@centaur.pw>
 * https://www.centaur.pw/
 *
 * Copyright (C) Centaur, 2025. All Rights Reserved.
 *
 * night2.h
 */

#ifndef _NIGHT_H
#define _NIGHT_H

#include <cstring>
#include <cerrno>
#include <fstream>
#include <iostream>
#include <string>
#include <sstream>
#include <sys/ioctl.h>

using namespace std;

#define NIGHT_VERSION "2.2"

/* Comment out the line below to disable support for Night 1.X codes */

#define SUPPORT_OLD_CODES 1

/* Change the value of BOX_STYLE below to 0 to use more simplistic line borders */

#ifndef BOX_STYLE
	#define BOX_STYLE 1
#endif /* BOX_STYLE */

/* Change the value of MAX_LINES to set the upper limit of newlines within a box */

#define MAX_LINES 40

/* Box elements */

#if (defined(BOX_STYLE) && BOX_STYLE == 1)
	#define BOX_TOP_LEFT_CORNER		"┌"
	#define BOX_TOP_RIGHT_CORNER 	"┐"
	#define BOX_BOTTOM_LEFT_CORNER	"└"
	#define BOX_BOTTOM_RIGHT_CORNER	"┘"
	#define BOX_HORIZONTAL_LINE		"─"
	#define BOX_VERTICAL_LINE 		"│"
#else
	#define BOX_TOP_LEFT_CORNER		"+"
	#define BOX_TOP_RIGHT_CORNER 	"+"
	#define BOX_BOTTOM_LEFT_CORNER	"+"
	#define BOX_BOTTOM_RIGHT_CORNER	"+"
	#define BOX_HORIZONTAL_LINE		"-"
	#define BOX_VERTICAL_LINE 		"|"
#endif

#ifndef STDOUT_FILENO
	#define STDOUT_FILENO 1
#endif /* STDOUT_FILENO */

#define PROGRAM_HELP \
"Night codes contained in text will be converted to ANSI sequences.\n\
\n\
Full documentation for this program is maintained in the manual file;\n\
see: man night2\n\n\
The table below shows all valid Night2 codes:\n\
\n\
Color/Style         Night Code    Equivalent Character Sequence\n\
\n\
Foreground Black    :black:       \\e[30m\n\
Foreground Red      :red:         \\e[31m\n\
Foreground Green    :green:       \\e[32m\n\
Foreground Yellow   :yellow:      \\e[33m\n\
Foreground Blue     :blue:        \\e[34m\n\
Foreground Purple   :purple:      \\e[35m\n\
Foreground Cyan     :cyan:        \\e[36m\n\
Foreground White    :white:       \\e[37m\n\
Background Black    :bgblack:     \\e[40m\n\
Background Red      :bgred:       \\e[41m\n\
Background Green    :bggreen:     \\e[42m\n\
Background Yellow   :bgyellow:    \\e[43m\n\
Background Blue     :bgblue:      \\e[44m\n\
Background Purple   :bgpurple:    \\e[45m\n\
Background Cyan     :bgcyan:      \\e[46m\n\
Background White    :bgwhite:     \\e[47m\n\
Bold Text           :bold:        \\e[1m\n\
Faint Text          :faint:       \\e[2m\n\
Italic Text         :italic:      \\e[3m\n\
Underline Text      :underline:   \\e[4m\n\
Strikeout Text      :strike:      \\e[9m\n\
Clear Screen        :clear:       \\e[2J\n\
Reset Cursor        :cursor:      \\e[;H\n\
Reverse Video       :reverse:     \\e[7m\n\
Reset All           :reset:       \\e[0m\n\
Begin Center Text   :center:      N/A\n\
End Center Text     :.center:     N/A\n\
Begin Box           :box:         N/A\n\
End Box             :.box:        N/A\n\
Save Cursor         :start:       \\e7\n\
Restore Cursor      :restore:     \\e8\n\
Cursor Up           :up:          \\e[1A\n\
Cursor Down         :down:        \\e[1B\n\
Cursor Left         :left:        \\e[1D\n\
Cursor Right        :right:       \\e[1C\n\
New Line            :newline:     \\n\n\
None                :none:        Space + \\b\n\
\n\
By default, old (version 1.X) codes will also be processed unless this\n\
option was turned off before compiling.\
"

#define TEST_PATTERN \
"Night Test Pattern\n\n\
:black:Normal Black    :bold:Bold Black:reset:    :bgblack:Background Black:reset:\n\
:red:Normal Red      :bold:Bold Red:reset:      :bgred:Background Red:reset:\n\
:green:Normal Green    :bold:Bold Green:reset:    :bggreen:Background Green:reset:\n\
:yellow:Normal Yellow   :bold:Bold Yellow:reset:   :bgyellow:Background Yellow:reset:\n\
:blue:Normal Blue     :bold:Bold Blue:reset:     :bgblue:Background Blue:reset:\n\
:purple:Normal Purple   :bold:Bold Purple:reset:   :bgpurple:Background Purple:reset:\n\
:cyan:Normal Cyan     :bold:Bold Cyan:reset:     :bgcyan:Background Cyan:reset:\n\
:white:Normal White    :bold:Bold White:reset:    :bgwhite::black:Background White:reset:\n\
Normal Gray     :bold:Bold Gray:reset:\n\
:faint:Faint Text:reset:\n\
:italic:Italic Text:reset:\n\
:underline:Underlined Text:reset:\n\
:strike:Struck Text:reset:\n\
:reverse:Reversed Text:reset:\n\
"

/* Legacy Night codes */

#if (defined(SUPPORT_OLD_CODES) && SUPPORT_OLD_CODES == 1)
	#define Night1_Code_Black    "~BLAK"
	#define Night1_Code_Red      "~REDX"
	#define Night1_Code_Green    "~GREE"
	#define Night1_Code_Yellow   "~YELL"
	#define Night1_Code_Blue     "~BLUE"
	#define Night1_Code_Purple   "~PURP"
	#define Night1_Code_Cyan     "~CYAN"
	#define Night1_Code_White    "~WHIT"
	#define Night1_Code_Bold     "~BLD"
	#define Night1_Code_Line     "~LIN"
	#define Night1_Code_Clear    "~CLR"
	#define Night1_Code_Cursor   "~CUR"
	#define Night1_Code_Reverse  "~REV"
	#define Night1_Code_Reset    "~RES"
#endif /* SUPPORT_OLD_CODES */

/* Night2 codes */

#define Code_Black			":black:"
#define Code_Red			":red:"
#define Code_Green			":green:"
#define Code_Yellow			":yellow:"
#define Code_Blue			":blue:"
#define Code_Purple			":purple:"
#define Code_Cyan			":cyan:"
#define Code_White			":white:"
#define Code_BGBlack		":bgblack:"
#define Code_BGRed			":bgred:"
#define Code_BGGreen		":bggreen:"
#define Code_BGYellow		":bgyellow:"
#define Code_BGBlue			":bgblue:"
#define Code_BGPurple		":bgpurple:"
#define Code_BGCyan			":bgcyan:"
#define Code_BGWhite		":bgwhite:"
#define Code_Bold			":bold:"
#define Code_Faint			":faint:"
#define Code_Italic			":italic:"
#define Code_Line			":underline:"
#define Code_Strike			":strike:"
#define Code_Clear			":clear:"
#define Code_Cursor			":cursor:"
#define Code_Reverse		":reverse:"
#define Code_Reset			":reset:"
#define Code_BeginCenter	":center:"
#define Code_EndCenter		":.center:"
#define Code_BeginBox		":box:"
#define Code_EndBox			":.box:"
#define Code_Start			":start:"
#define Code_Restore		":restore:"
#define Code_Up				":up:"
#define Code_Down			":down:"
#define Code_Left			":left:"
#define Code_Right			":right:"
#define Code_NewLine		":newline:"
#define Code_None			":none:"

/* ANSI sequences */

#define BLACK		"\e[30m"
#define RED			"\e[31m"
#define GREEN		"\e[32m"
#define YELLOW		"\e[33m"
#define BLUE		"\e[34m"
#define PURPLE		"\e[35m"
#define CYAN		"\e[36m"
#define WHITE		"\e[37m"
#define BGBLACK		"\e[40m"
#define BGRED		"\e[41m"
#define BGGREEN		"\e[42m"
#define BGYELLOW	"\e[43m"
#define BGBLUE		"\e[44m"
#define BGPURPLE	"\e[45m"
#define BGCYAN		"\e[46m"
#define BGWHITE		"\e[47m"
#define BOLD		"\e[1m"
#define FAINT		"\e[2m"
#define ITALIC		"\e[3m"
#define LINE		"\e[4m"
#define STRIKE		"\e[9m"
#define CLEAR		"\e[2J"
#define CURSOR		"\e[;H"
#define REVERSE		"\e[7m"
#define RESET		"\e[0m"
#define NEWLINE		"\x0a"
#define START		"\e7"
#define RESTORE		"\e8"
#define UP			"\e[1A"
#define DOWN		"\e[1B"
#define LEFT		"\e[1D"
#define RIGHT		"\e[1C"
#define NONE		" \x08"

/* Global variables */

struct winsize console_size;
int _c = ioctl(STDOUT_FILENO, TIOCGWINSZ, &console_size);
int line_count = 0;

/* Function declarations */

int lines(string str);
string* str2array(string str);
string box(string str);
string readtag(string str, string begin_str, string end_str);
string center(string str);
string replace(string str, const string f, const string r);
string strip_ansi(string str);
string strip_night(string str);
string night2(const string str);
void night2file(char file[]);

#endif /* _NIGHT_H */