Cool 0.0.0. Rend 1.0.4.

1 files changed, 249 insertions, 0 deletions

diff --git a/Cool/cool.h b/Cool/cool.h
new file mode 100644
index 0000000..f26024b
--- /dev/null
+++ b/Cool/cool.h
@@ -0,0 +1,249 @@
+/* ===========================================================================   
+ * Cool - Server-side Components in C - Copyright (c) 2026 Vasco Alves
+ *                          
+ *                     _.-\                              _.-\
+ *               __.-''    \                       __.-''    \
+ *             -----------------------------------'           
+ *             \ X X           / \ X X           /            
+ *              \ X X         /   \ X X         /             
+ *               \ X X       /     \ X X       /              
+ *                \---------/       \---------/               
+ *  
+ *               "Hasta la vista, baby."
+ *
+ * ---------------------------------------------------------------------------   
+ *
+ * PREFIX: COOL (macros) Cool_ (types)  cool (function) 
+ *
+ * USAGE:
+ * Can be used directly for very simple applications or through a transpiler
+ * that converts a separate "higher level" template language directly into 
+ * C functions!
+ *
+ * --- view.cool ---
+ * COOL void GenDocs(char *name, char *func, char *desc) {
+ *     <div class="api-card">
+ *         <h3 class="api-name">{ name }</h3>
+ *         <code class="language-c">{ func } </code>
+ *         <div class="api-description">
+ *             { desc }
+ *         </div>
+ *     </div>
+ * }
+ *
+ * --- main.c ---
+ * #include "view.cool.c"
+ * int main(int argc, char **argv) {
+ * 
+ *     if (argc < 2) {
+ *         puts("Usage: doc_generator [FILE]");
+ *         return 1;
+ *     }
+ * 
+ *     FILE *header_file = fopen(argv[1], "r");
+ * 
+ *     char *line_buf = malloc(256);
+ *     size_t len = 0;
+ *     while (getline(&line_buf, &len, header_file) > 0) {
+ *         char func_name[256];
+ *         char func_decl[256];
+ *         char *comment_text = NULL;
+ * 
+ *         if (parse_header_line(line_buf, func_name, func_decl, &comment_text)) {
+ *             GenDocs(func_name, func_decl, comment_text);
+ *         }
+ *     }
+ * 
+ *     free(line_buf);
+ * 
+ *     return 0;
+ * }
+ *
+ * =========================================================================== */
+
+#ifndef _COOL_H_
+#define _COOL_H_
+
+#define COOL_MAJOR 0  // breaking API changes
+#define COOL_MINOR 0  // non-breaking features
+#define COOL_PATCH 0  // non-breaking patches and bug fixes
+
+/* CHANGE LOG
+ * 0.0.0 - @vasco - server-side HTML from C functions
+ */
+
+#define COOLDEF static inline
+#define COOL_OUTPUT stdout
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <assert.h>
+
+typedef struct {
+    char *cstr; // original cstring 
+    size_t len; // len
+} Cool_StrView;
+
+/* Macro to wrap string literal in a string view. Since we will be dealing with a lot of */
+#define COOL_SV(literal) ((Cool_StrView){ .cstr = (literal), .len = sizeof(literal) - 1 })
+COOLDEF void cool_sv_write(Cool_StrView sv); // Write string view to output.
+COOLDEF void cool_html(Cool_StrView sv); // SAFELY write HTML to a buffer. Handles escaping malicious sequences.
+COOLDEF void cool_html_raw(Cool_StrView sv); // Writes HTML to buffer without escaping sequences. Vulnerable to XSS. Use with caution.
+COOLDEF void cool_html_raw_cstr(const char *str, size_t len); // Writes unsafe HTML using C strings.
+COOLDEF void cool_html_txt(const char *str, size_t len); // Meant for inner text. Escapes '<', '>' and '&'.
+COOLDEF void cool_htmlf(const char *fmt, ...); // SAFELY write formatted string to buffer.
+COOLDEF void cool_htmlf_raw(const char *fmt, ...); // Writes formatting HTML string to buffer without escaping sequences. Vulnerable to XSS. Use with caution.
+                                                                
+#endif
+
+#define COOL_IMPLEMENTATION
+#ifdef COOL_IMPLEMENTATION
+#undef COOL_IMPLEMENTATION
+
+static const char* cool_url_escape_table[256] = {
+    "%00", "%01", "%02", "%03", "%04", "%05", "%06", "%07",
+    "%08", "%09", "%0a", "%0b", "%0c", "%0d", "%0e", "%0f",
+    "%10", "%11", "%12", "%13", "%14", "%15", "%16", "%17",
+    "%18", "%19", "%1a", "%1b", "%1c", "%1d", "%1e", "%1f",
+    "%20", NULL,  "%22", "%23", NULL,  "%25", "%26", "%27",
+    NULL,  NULL,  NULL,  "%2b", NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  "%3c", "%3d", "%3e", "%3f",
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  "%5c", NULL,  "%5e", NULL,
+    "%60", NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
+    NULL,  NULL,  NULL,  "%7b", "%7c", "%7d", NULL,  "%7f",
+    "%80", "%81", "%82", "%83", "%84", "%85", "%86", "%87",
+    "%88", "%89", "%8a", "%8b", "%8c", "%8d", "%8e", "%8f",
+    "%90", "%91", "%92", "%93", "%94", "%95", "%96", "%97",
+    "%98", "%99", "%9a", "%9b", "%9c", "%9d", "%9e", "%9f",
+    "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%a7",
+    "%a8", "%a9", "%aa", "%ab", "%ac", "%ad", "%ae", "%af",
+    "%b0", "%b1", "%b2", "%b3", "%b4", "%b5", "%b6", "%b7",
+    "%b8", "%b9", "%ba", "%bb", "%bc", "%bd", "%be", "%bf",
+    "%c0", "%c1", "%c2", "%c3", "%c4", "%c5", "%c6", "%c7",
+    "%c8", "%c9", "%ca", "%cb", "%cc", "%cd", "%ce", "%cf",
+    "%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7",
+    "%d8", "%d9", "%da", "%db", "%dc", "%dd", "%de", "%df",
+    "%e0", "%e1", "%e2", "%e3", "%e4", "%e5", "%e6", "%e7",
+    "%e8", "%e9", "%ea", "%eb", "%ec", "%ed", "%ee", "%ef",
+    "%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7",
+    "%f8", "%f9", "%fa", "%fb", "%fc", "%fd", "%fe", "%ff"
+};
+
+COOLDEF void
+cool_sv_write(Cool_StrView sv)
+{
+    fwrite(sv.cstr, sizeof *sv.cstr, sv.len, COOL_OUTPUT);
+}
+
+COOLDEF void
+cool_html(Cool_StrView sv)
+{
+    assert(0 && "TODO");
+}
+
+COOLDEF void
+cool_html_raw(Cool_StrView sv)
+{
+    fwrite(sv.cstr, sizeof *sv.cstr, sv.len, COOL_OUTPUT);
+}
+
+COOLDEF void
+cool_html_raw_cstr(const char *str, size_t len)
+{
+    fwrite(str, sizeof *str, len, COOL_OUTPUT);
+}
+
+COOLDEF void
+cool_html_txt(const char *str, size_t len)
+{
+    const char *s = str;
+	while (s && *s && len--) {
+        int c = *str;
+        if (c == '<' || c == '>' || c == '&') {
+            cool_html_raw_cstr(str, s - str);
+            switch (c) {
+                case '>':
+                    cool_html_raw(COOL_SV("&gt;"));
+                    break;
+                case '<':
+                    cool_html_raw(COOL_SV("&lt;"));
+                    break;
+                case '&':
+                    cool_html_raw(COOL_SV("&amp;"));
+                    break;
+            }
+            str = s + 1;
+        }
+        s++;
+    }
+
+    if (s != str) cool_html_raw_cstr(str, s - str);
+}
+
+COOLDEF void
+cool_htmlf(const char *fmt, ...)
+{
+    assert(0 && "TODO");
+}
+
+COOLDEF void
+cool_htmlf_raw(const char *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+    vfprintf(COOL_OUTPUT, fmt, args);
+    va_end(args);
+}
+                    
+#endif
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2026 Vasco Alves
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/
+