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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+                            Preamble
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: 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
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

Makefile

@@ -0,0 +1,22 @@
+CFLAGS= -Ofast -I"include"
+BIN=cts
+
+all: main
+
+main: main.o
+	gcc colors.o dbquery.o main.o -lsqlite3 -o $(BIN)
+
+main.o: dbquery.o src/main.c
+	gcc -c src/main.c $(CFLAGS)
+
+dbquery.o: colors.o src/dbquery.c
+	gcc -c src/dbquery.c $(CFLAGS)
+
+colors.o: src/colors.c
+	gcc -c src/colors.c $(CFLAGS)
+
+testcolor: src/colors.c src/tcolor.c
+	gcc src/colors.c src/tcolor.c -o tcolor -I"includes" -g
+
+clean:
+	rm *.o *.log $(BIN)

README.md

@@ -0,0 +1,32 @@
+C CGI Xonotic DeFrag
+-----------------
+A CGI program written in C to display data related to Race CTS leaderboards of Xonotic servers.
+
+## Requirements
+* SQLite3
+
+## Web Server Queries
+* `(none)`
+    - Query file: `queries/mranks.sql`
+    - Requests the maplist of the server and related data.
+
+* `?map=[map name]`
+    - Query file: `queries/mleaderboard-ojoin.sql`
+    - Requests the leaderboard of the map.
+
+* `?player=[clientid]`
+    - Query file: `queries/rplayers.sql`
+    - Requests a player's ranks for all maps leaderboards s/he is present on.
+
+## Game Versions Used Under:
+   * Xonotic 0.8.1
+   * Xonotic 0.8.2
+
+## Compilers
+* MinGW, GCC 4.7.1
+
+__________________
+
+This program uses an sqlite3 database file created from `~/.xonotic/data/data/server.db`.
+
+ The database may be built using [xonotic-py-sqlite3-defrag2db](https://git.teknik.io/antares/xonotic-py-sqlite3-defrag2db).

doc/doc-colors.txt

@@ -0,0 +1,176 @@
+
+colors.c / colors.h
+
+To convert in-game player name colors to html display.
+
+References used:
+    http://www.rapidtables.com/convert/color/hsl-to-rgb.htm
+    http://www.rapidtables.com/convert/color/rgb-to-hsl.htm
+    https://gitlab.com/xonotic/xonstat/blob/master/xonstat/util.py
+
+Overview:
+
+    This component is slightly based on util.py of XonStats, but the only 
+    functionality needed is coloring the player's names. Since C programming 
+    language does not have standard libraries for color model conversions and 
+    regex, some functionality had to be self written. The function of interest 
+    is:
+        def html_colors(qstr='', limit=None):
+
+    This component uses purely C standard library.
+
+    Advanced string manipulations such as replace and concatenation are 
+    avoided. Instead, strings are printed in parts across functions.
+
+    There is only one instance of dynamic memory allocation. 
+        void print_plname(const char *)
+    It both allocates, near the start, and frees memory at the end.
+
+darkplaces Player Names & Colors
+    Players can add color themes to their names. They're expressed either 
+    decimal or hexidecimal.
+
+    The decimal format follows
+        A character '^' that is not displayed, followed by a single digit 
+        between 0 and 9.
+    The hexidecimal format follows
+        A string '^x' that is not displayed, followed by 3 digits between 
+        0 - 0xF.
+
+Python Regex to C Translation
+
+    The snippets from the original python code:
+
+    _all_colors = re.compile(r'\^(\d|x[\dA-Fa-f]{3})')
+    _dec_colors = re.compile(r'\^(\d)')
+    _hex_colors = re.compile(r'\^x([\dA-Fa-f])([\dA-Fa-f])([\dA-Fa-f])')
+
+    _dec_spans = [
+     "<span style='color:rgb(128,128,128)'>",
+     "<span style='color:rgb(255,0,0)'>",
+     "<span style='color:rgb(51,255,0)'>",
+     "<span style='color:rgb(255,255,0)'>",
+     "<span style='color:rgb(51,102,255)'>",
+     "<span style='color:rgb(51,255,255)'>",
+     "<span style='color:rgb(255,51,102)'>",
+     "<span style='color:rgb(255,255,255)'>",
+     "<span style='color:rgb(153,153,153)'>",
+     "<span style='color:rgb(128,128,128)'>"
+    ]
+
+    ...
+
+    def html_colors(qstr='', limit=None):
+        ...
+        html = _dec_colors.sub(lambda match: _dec_spans[int(match.group(1))], 
+                               qstr)
+        html = _hex_colors.sub(hex_repl, html)
+        ...
+
+    html = _dec_colors.sub(lambda match: _dec_spans[int(match.group(1))], qstr)
+        The character following a '^' is treated as an index to the array 
+        '_dec_spans'. The corresponding element in '_dec_spans' replaces the 
+        character '^' and the following digit in the string 'qstr'.
+
+    html = _hex_colors.sub(hex_repl, html)
+        The output of function 'hex_repl' replaces matching strings in html- 
+        '^x' followed by 3 hexadecimal digits. The function 'hex_repl' has more
+        to do with the algorithms of color model conversions than it has to do 
+        with regex rules.
+
+    The control flow to output similar results to the regex substitutions is 
+    in the function
+        static void b(char * const str);
+    Unlike the python counterparts, it segments the player name into tokens and
+    prints strings also other strings instead of the sequences not intended to 
+    be displayed.
+
+Function Walkthrough
+Sorted by caller to callee.
+
+    void print_plname(const char *)
+        const char * parameter is the player's name. It is used as a basis for
+        the variable 'copy'. 'copy' will always be the shorter character string.
+
+        This is function is intended to be used by the client file.
+
+        This function unconditionally allocates memory (calloc) and frees it at
+        the end.
+
+        By itself, it only removes extraneous instances of the character '^'. 
+        It then calls the function
+            static void b(char * const)
+        where actual output occurs.
+
+    static void b(char * const)
+        const char * parameter is the player's name. The data pointed at by the
+        pointer is altered by function 'strtok', but the pointer itself is 
+        never changed. Abstractly, fragments of the player's name are treated 
+        as a command to print specific strings.
+
+        This function iterates once through the player's name. 'strtok' 
+        segments the player's name; sequences between and not including '^'s 
+        are treated as substrings. The first character of the substring is 
+        checked for a digit inclusively between 0 and 9 for a decimal color 
+        code. Exclusively or, checked for an 'x' and a numerical sequence 
+        afterwards for a hexidecimal color code. If the substring does not have
+        either, it is printed like an ordinary string.
+
+        This function may not be adequate when a player's name intentionally 
+        contains '^'.
+
+    static void hexspan(const char *) 
+        const char * parameter is ideally a sequence of 3 hexidecimal digits. 
+        Actually it is the entire substring from the callee. The first 3 
+        elements are of interest as 3 separate single digit numerical values 
+        and are explicitly separated to prevent function 'strtol' from 
+        interpreting them as multidigit numbers. These 3 elements are rgb 
+        values from the game engine.
+        Xonotic represents RGB values as a sequence of three digits 0 - 0xF. 
+        Before conversion is to be done, they must be multiplied by 0xF so the
+        full range of values for RGB, 0 - 255 can be represented.
+
+        This function prints the an html span tag.
+
+        This function will first convert rgb to hsl to check if the colors are 
+        too dark for the web page, and if so brighten up the colors then 
+        reconvert to rgb. 
+
+    static void decspan(const int)
+        const int parameter is a digit, the range being [0, 9].
+
+        This function is straightforward. It will print an html tag 
+        corresponding to the const int parameter.
+
+    void hsl2rgb(struct Rgb *, const struct Hls const *)
+        First parameter, 'struct Rgb *' is the result of the conversion. It 
+        does not need to be initialized.
+        Second parameter, 'const struct Hls const *' is the values and color
+        model to convert from and because, it must be initialized.
+
+        The math referenced from:
+            http://www.rapidtables.com/convert/color/hsl-to-rgb.htm
+        The implemenation deviates at the last 3 lines of code where the 
+        results are finalized and placed in the output. The webpage does not
+        mention that rounding up is necessary. However it is, otherwise the
+        nonzero rgb values for the following colors 
+            Silver  (0°,0%,75%)
+            Gray    (0°,0%,50%)
+            Maroon  (0°,100%,25%)
+            Olive   (60°,100%,25%)
+            Green   (120°,100%,25%)
+            Purple  (300°,100%,25%)
+            Teal    (180°,100%,25%)
+            Navy    (240°,100%,25%)
+        will be off by one.
+
+    void rgb2hsl(struct Hls *, const struct Rgb const *)
+        First parameter, 'struct Hls *' is the result of the conversion. It 
+        does not need to be initialized.
+        Second parameter, 'const struct Rgb const *' is the values and color 
+        model to convert from and because, it must be initialized.
+
+        The math referenced from:
+            http://www.rapidtables.com/convert/color/rgb-to-hsl.htm
+        The implementation deviates when calculating hue, when Cmax is R'. 
+        Instead of modulo, there is a summation by 6 when G' is less than B'.

doc/doc-dbquery.txt

@@ -0,0 +1,150 @@
+
+dbquery.c / dbquery.h
+
+Retrieve information from the database & displays it.
+
+Overview
+
+    This component uses colors.c / colors.h.
+
+    Every function that allocates memory also frees it.
+
+    Advanced string manipulation such as concatenation is avoided. Instead
+    strings are printed in parts.
+
+Exo File Dependencies
+
+    SQL commands are stored in an outside file (.sql) and executed. The 
+    functions in this file are largely adaptable until 
+        void qresult(void * const, const char *);
+    which prints the results of the query. This is specific to the query. All 
+    functions in this file could be considered non-modular because the 
+    specialized functions like 'qresult' are eventually called by the more
+    adaptable functions. This may later be solved by calling function pointers
+    to display table data, but currently many of the tables are similar enough
+    that one function to print all tables suffices.
+
+Adding or Removing New Queries
+
+    To add new queries the program may handle the following functions need to 
+    be adjusted.
+
+        inline void print_tblheader(const char *);
+
+        inline char *get_filename(const char *) ;
+
+        void qresult(void * const, const char *);
+
+    The file name of the query file should be added to the switch statement of
+    function 'get_filename'. The starting html tags and labels should also be 
+    added to the switch statement of function 'print_tblheader'. For both 
+    forementioned functions, the switch statement operates on a variable 'c' 
+    which represents the first character of the query string. Currently, the 
+    case is that the different queries, '?map=' and '?player=', begin with 
+    different letters.
+
+    The function 'qresult'- extra formatting and corresponding conditions 
+    should be added to the series of if/else-if statements. 'qresult's most 
+    applicable conditionals are player names and formatted times- if a new 
+    query will involve those, the conditionals should be added.
+
+Function Walkthrough
+Sorted by caller to callee.
+
+    void getquery(char * const);
+        Parameter 'char * const' is the query string retrieved from the 
+        environment. NULL is an acceptable parameter. Only the first character 
+        of the string pointed at by the pointer will be changed.
+
+        A file name is then retrieved from 'get_filename', depending on the 
+        first character of the query string. Then the contents of the query 
+        file is read in to be later to query the database.
+
+        Currently, this function determines the size of the file by using 
+        'fseek' and 'ftell'. Often recommended against however:
+            1. The files to open are restricted to a specific set.
+            2. The files are plain text files.
+            3. The file sizes, in bytes, are very unlikely to exceed the 
+            maximum value representable by integers.
+
+        'ftell' returns a long int. It can determine the file size of a ~2 GB 
+        file.
+
+    int executequery(const char *, const char *);
+        Parameter #1 is the string containing the query for the database. NULL 
+        is not acceptable. If a null value is given, the program will output 
+        the following string to stderr:
+            Could not prepare SQL statement: not an error
+
+            (null)
+        Parameter #2 is the query string. NULL is acceptable.
+
+        This function opens and closes the connection to the database. Also 
+        prepares and finalizes the sql statement. However itself, it does not
+        actually query the database.
+
+    void qresult(void * const, const char *);
+        Parameter #1 is the prepared sql statement.
+        Parameter #2 is the first character of the query string- in use to 
+        identify the query.
+
+        This function both executes the query and displays the data.
+        The for loop iterates for each field of the row returned.
+
+        Conditionals explained:
+        
+        The fields are hardcoded from the sql query files.
+
+        mranks.sql       - (*c = QOVERVIEW)
+            select  mapid,   max(trank), min(tvalue), alias
+        i =         0       1            2            3
+
+        rplayers.sql     - (*c = QRPLAYER)
+            select  alias,   mapid,      idrank
+        i =         0        1           2
+
+        mleaderboard.sql - (*c = QMLEADERBOARD)
+            select  trank,   alias,      tvalue
+        i =         0        1           2
+
+        if ((*c == QMLEADERBOARD && i == 1) 
+            || (*c == QOVERVIEW && i == 3) 
+            || (*c == QRPLAYER && i == 0))
+            If the field is for map leaderboards and column 1, or the overview 
+            and column 3, or player ranks and column 0, then it is a player 
+            name; which should have the in-game color codes translated to html.
+
+        if ((i == 0 && *c == QOVERVIEW) || (i == 1 && *c == QRPLAYER)) 
+            If the field is for overview and column 0 or is player ranks column
+            1, then it is a map name, and it should have html tags linking it 
+            to the map leaderboards.
+
+        if (i == 2 && (*c == QMLEADERBOARD || *c == QOVERVIEW))
+            If the field is column 2 of either the overview or the map 
+            leaderboards, then it is a time which should be formatted as such.
+
+        If none of the conditionals are met, then the field is printed as usual.
+
+    void print_time(const unsigned char *);
+        Parameter 'const unsigned char *' is the string that represents a 
+        number- quantity of centiseconds.
+
+        The time as a string is converted to a number by 'strtoul'. Thus, the 
+        maximum value that is returned by 'strtoul' given a string is 
+        21,474,836.47 seconds. This is by far, more than enough for a game mode
+        focused on the lowest possible times.
+
+        This function performs the conversion and prints the value.
+
+    inline void print_tblheader(const char *);
+        Parameter 'const char *' is a pointer to a string. However, only the 
+        first character is of interest because C can not switch on strings.
+
+        This function prints the starting tag of the html table.
+
+    inline char *get_filename(const char *) ;
+        Parameter 'const char *' is a pointer to a string. However, only the 
+        first character is of interest because C can not switch on strings.
+
+        This function returns the file name of a sql query file.
+

makefile

@@ -1,18 +0,0 @@
-CFLAGS= -Ofast
-
-all: cts tcolor
-
-cts: main.o
-	gcc colors.o sqlite3.o dbquery.o main.o -o cts
-
-main.o: dbquery.o main.c
-	gcc -c main.c -I"includes" $(CFLAGS)
-
-dbquery.o: colors.o includes/dbquery.c
-	gcc -c includes/dbquery.c $(CFLAGS)
-
-colors.o: includes/colors.c
-	gcc -c includes/colors.c $(CFLAGS)
-
-tcolor: includes/colors.c tcolor.c
-	gcc includes/colors.c tcolor.c -o tcolor -I"includes" -g

queries/mleaderboard.sql

@@ -1,8 +0,0 @@
-select trank, idvalue, tvalue
-from Cts_times, Cts_ranks
-where trank = idrank and Cts_times.mapid = Cts_ranks.mapid and Cts_times.mapid = ?
-order by trank
-
--- get full leaderboard of the map
--- aliases are not included because
--- not ever player has a registered alias.

queries/mplayers.sql

@@ -1,7 +0,0 @@
-select idrank, idvalue, alias
-from Cts_ranks, Id2alias
-where idvalue = cryptokey and mapid = ?
-order by idrank
-
--- get registered/aliased players who have played on 
--- the specified map.

src/dbquery.c

@@ -68,10 +68,10 @@ static inline void print_tblheader(const char *c) {
 // 21,474,836.47 seconds
 // someone would need to idle in-game for 248 days
 static void print_time(const unsigned char *strcs) {
-    const unsigned int num = strtoul((const char*)strcs, NULL, 10);
-    unsigned int s = num/100;
-    const unsigned int cs  = num % 100;
-    const unsigned int min = s/60;
+    const unsigned long num = strtoul((const char*)strcs, NULL, 10);
+    unsigned long s = num/100;
+    const unsigned long cs  = num % 100;
+    const unsigned long min = s/60;
     s = s % 60;
     if (min > 0) {
         printf("<TD>%u:%.2u.%.2u</TD>", min, s, cs);

src/tcolor.c

@@ -0,0 +1,182 @@
+#include "colors.h"
+#include <stdio.h>
+#include <math.h>
+#include <stdbool.h>
+
+#define RGB_BLACK 0,0,0
+#define RGB_WHITE 255,255,255
+#define RGB_RED 255,0,0
+#define RGB_LIME 0,255,0
+#define RGB_BLUE 0,0,255
+#define RGB_YELLOW 255,255,0
+#define RGB_CYAN 0,255,255
+#define RGB_MAGENTA 255,0,255
+#define RGB_SILVER 192,192,192
+#define RGB_GREY 128,128,128
+#define RGB_MAROON 128,0,0
+#define RGB_OLIVE 128,128,0
+#define RGB_GREEN 0,128,0
+#define RGB_PURPLE 128,0,128
+#define RGB_TEAL 0,128,128
+#define RGB_NAVY 0,0,128
+
+#define HSL_BLACK   0,0.0f,0.0f
+#define HSL_WHITE   0,0.0f,1.0f
+#define HSL_RED     0,1.0f,0.5f
+#define HSL_LIME    120,1.0f,0.5f    
+#define HSL_BLUE    240,1.0f,0.5f    
+#define HSL_YELLOW  60,1.0f,0.5f
+#define HSL_CYAN    180,1.0f,0.5f
+#define HSL_MAGENTA 300,1.0f,0.5f
+#define HSL_SILVER  0,0.0f,0.75f
+#define HSL_GREY    0,0.0f,0.50f
+#define HSL_MAROON  0,1.0f,0.25f
+#define HSL_OLIVE   60,1.0f,0.25f
+#define HSL_GREEN   120,1.0f,0.25f
+#define HSL_PURPLE  300,1.0f,0.25f
+#define HSL_TEAL    180,1.0f,0.25f
+#define HSL_NAVY    240,1.0f,0.25f
+
+#define ERROR_TOLERANCE 0.01
+
+#define CLR4BIT 16
+
+bool trgb2hsl(const int r, const int g, const int b, 
+              const int h, const float s, const float l) {
+    bool result = true;
+    struct Rgb x;
+    x.r = r;
+    x.g = g;
+    x.b = b;
+    struct Hls y;
+    rgb2hsl(&y, &x);
+    if (y.h == h && fabs(y.s - s) <= ERROR_TOLERANCE && fabs(y.l - l) <= ERROR_TOLERANCE) {
+//        printf("COLOR CONVERSION OK!\n");
+        ;
+    } else {
+        printf("COLOR CONVERSION UNACCEPTABLE\n\texpected: %d %0.2f %0.2f\n", h, s, l);
+        result = false;
+    }
+    printf("\t%d %0.2f %0.2f\n", y.h, y.s, y.l);
+    return result;
+}
+
+void test_rgb2hsl(bool * const r) {
+    r[0] = trgb2hsl(RGB_BLACK, HSL_BLACK);
+    r[1] = trgb2hsl(RGB_WHITE, HSL_WHITE);
+    r[2] = trgb2hsl(RGB_RED, HSL_RED);
+    r[3] = trgb2hsl(RGB_LIME, HSL_LIME);
+    r[4] = trgb2hsl(RGB_BLUE, HSL_BLUE);
+    r[5] = trgb2hsl(RGB_YELLOW, HSL_YELLOW);
+    r[6] = trgb2hsl(RGB_CYAN, HSL_CYAN);
+    r[7] = trgb2hsl(RGB_MAGENTA, HSL_MAGENTA);
+    r[8] = trgb2hsl(RGB_SILVER, HSL_SILVER);
+    r[9] = trgb2hsl(RGB_GREY, HSL_GREY);
+    r[10] = trgb2hsl(RGB_MAROON, HSL_MAROON);
+    r[11] = trgb2hsl(RGB_OLIVE, HSL_OLIVE);
+    r[12] = trgb2hsl(RGB_GREEN, HSL_GREEN);
+    r[13] = trgb2hsl(RGB_PURPLE, HSL_PURPLE);
+    r[14] = trgb2hsl(RGB_TEAL, HSL_TEAL);
+    r[15] = trgb2hsl(RGB_NAVY, HSL_NAVY);
+}
+
+bool thls2rgb(int h, float s, float l, int r, int g, int b) {
+    bool result = true;
+    struct Hls x;
+    x.h = h;
+    x.s = s;
+    x.l = l;
+    struct Rgb y;
+    hsl2rgb(&y, &x);
+    if (y.r == r && y.g == g && y.b == b) {
+        ;
+    } else {
+        printf("COLOR CONVERSION INEXACT\n\texpected: %d %d %d\n", r, g, b);
+        result = false;
+    }
+    printf("%d %d %d\n", y.r, y.g, y.b);
+    return result;
+}
+
+void test_hsl2rgb(bool * const r) {
+    r[0] = thls2rgb(HSL_BLACK, RGB_BLACK);
+    r[1] = thls2rgb(HSL_WHITE, RGB_WHITE);
+    r[2] = thls2rgb(HSL_RED, RGB_RED);
+    r[3] = thls2rgb(HSL_LIME, RGB_LIME);
+    r[4] = thls2rgb(HSL_BLUE, RGB_BLUE);
+    r[5] = thls2rgb(HSL_YELLOW, RGB_YELLOW);
+    r[6] = thls2rgb(HSL_CYAN, RGB_CYAN);
+    r[7] = thls2rgb(HSL_MAGENTA, RGB_MAGENTA);
+    r[8] = thls2rgb(HSL_SILVER, RGB_SILVER);
+    r[9] = thls2rgb(HSL_GREY, RGB_GREY);
+    r[10] = thls2rgb(HSL_MAROON, RGB_MAROON);
+    r[11] = thls2rgb(HSL_OLIVE, RGB_OLIVE);
+    r[12] = thls2rgb(HSL_GREEN, RGB_GREEN);
+    r[13] = thls2rgb(HSL_PURPLE, RGB_PURPLE);
+    r[14] = thls2rgb(HSL_TEAL, RGB_TEAL);
+    r[15] = thls2rgb(HSL_NAVY, RGB_NAVY);
+}
+
+void test4bitcolors(void (*f)(bool * const)) {
+    const char *colors[CLR4BIT] = {
+        "BLACK",
+        "WHITE",
+        "RED",
+        "LIME",
+        "BLUE",
+        "YELLOW",
+        "CYAN",
+        "MAGENTA",
+        "SILVER",
+        "GREY",
+        "MAROON",
+        "OLIVE",
+        "GREEN",
+        "PURPLE",
+        "TEAL",
+        "NAVY"
+    };
+    bool results[CLR4BIT];
+    f(results);
+    unsigned int i;
+    for (i = 0; i < CLR4BIT; ++i) {
+        if (results[i]) {
+            printf("%s's OK\n", colors[i]);
+        } else {
+            printf("%s's INCORRECT\n", colors[i]);
+        }
+    }
+}
+
+void dpconvert(int r, int g, int b) {
+    struct Rgb t;
+    t.r = r * 0xf;
+    t.g = g * 0xf;
+    t.b = b * 0xf;
+    struct Hls z;
+    rgb2hsl(&z, &t);
+    printf("%d %f %f\n", z.h, z.s, z.l);
+    if (z.l < 0.5) {
+        z.l = 0.5;
+        hsl2rgb(&t, &z);
+        printf("%d %d %d\n", t.r, t.g, t.b);
+    }
+}
+
+int main() {
+/*     print_plname("^xf00Unregistered Player^7");
+    print_plname("^9[^1S^9]^x469Kom^0ier^7");
+    print_plname("^9sjn^5|^9F^5e^9tus^7");
+    print_plname("^0[^7>>^0]^xaefdizzy^7");
+    print_plname("^x46^xasdf"); */
+    print_plname("^xB90Beemann^7");
+    printf("Testing hsl 2 rgb\n");
+    test4bitcolors(&test_hsl2rgb);
+    printf("Testing rgb 2 hsl\n");
+    test4bitcolors(&test_rgb2hsl);
+    dpconvert(4, 6, 9);
+    trgb2hsl(60, 90, 135, 216, 0.38f, 0.38f);
+    trgb2hsl(79, 118, 176, 216, 0.38f, 0.50f);
+    thls2rgb(216, 0.38f, 0.50f, 79, 118, 176);
+}
+