init

.gitignore

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+mmd
+test.html

LICENSE

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+Copyright (c) 2024 Hamza NANAHA <hamza.nanaha@hotmail.com>
+
+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.

Makefile

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+all:
+	clang -ggdb main.c -o mmd
+
+run: all
+	./mmd test.md test.html

main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+#define CHECK_MD_BOUND(md) (md->in_cursor < md->in_cap && md->out_cursor < md->out_cap)
+
+typedef struct MegaData {
+    char *in;
+    char *out;
+    int in_cap;
+    int out_cap;
+    int in_cursor;
+    int out_cursor;
+} MegaData;
+
+void skip_begin(MegaData *md)
+{
+    while (CHECK_MD_BOUND(md) && (md->in[md->in_cursor] == ' ' || md->in[md->in_cursor] == '\t' || md->in[md->in_cursor] == '\n')) {
+        md->out[md->out_cursor] = md->in[md->in_cursor];
+        md->in_cursor++;
+        md->out_cursor++;
+    }
+}
+
+void skip_endline(MegaData *md)
+{
+    while (CHECK_MD_BOUND(md) && md->in[md->in_cursor] != '\n') {
+        md->out[md->out_cursor] = md->in[md->in_cursor];
+        md->in_cursor++;
+        md->out_cursor++;
+    }
+}
+
+int mmdeeznut(MegaData *md)
+{
+    assert(md->in_cap < md->out_cap && "output buffer should be bigger than the input file size.");
+    while (CHECK_MD_BOUND(md)) {
+        skip_begin(md);
+        if (md->in[md->in_cursor] == '#') {
+            int level = 1;
+            while (md->in[md->in_cursor+level] == '#' && level < 6)
+                level++;
+            if (md->in[md->in_cursor+level] == ' ') {
+                md->in_cursor += level+1;
+
+                md->out[md->out_cursor] = '<';
+                md->out[++md->out_cursor] = 'h';
+                md->out[++md->out_cursor] = '0' + level;
+                md->out[++md->out_cursor] = '>';
+                md->out_cursor++;
+                skip_endline(md);
+                md->out[md->out_cursor] = '<';
+                md->out[++md->out_cursor] = '/';
+                md->out[++md->out_cursor] = 'h';
+                md->out[++md->out_cursor] = '0' + level;
+                md->out[++md->out_cursor] = '>';
+                md->out_cursor++;
+            }
+        }
+        skip_endline(md);
+    }
+
+    return md->out_cursor;
+}
+
+int main(int argc, char **argv)
+{
+    if (argc != 3) {
+        printf("ERR: please input only 2 parameter.\nusage: %s <input file> <output file>\n", *argv);
+        exit(-69);
+    }
+
+    FILE *input_file = fopen(argv[1], "r");
+    FILE *output_file = fopen(argv[2], "w");
+
+    fseek(input_file , 0L, SEEK_END);
+    int file_size = ftell(input_file);
+    rewind(input_file);
+
+    char *mmd_data = malloc(file_size);
+    assert(mmd_data && "Buy more RAM!");
+    fread(mmd_data, file_size, 1, input_file);
+
+    char *html_data = malloc(file_size*2);
+
+    MegaData md = {
+        .in = mmd_data,
+        .in_cap = file_size,
+        .out = html_data,
+        .out_cap = file_size*2,
+        .in_cursor = 0,
+        .out_cursor = 0,
+    };
+    int data_size = mmdeeznut(&md);
+
+    printf("%s", mmd_data);
+    printf("--------------------\n");
+    printf("%.*s", data_size, html_data);
+
+    fwrite(html_data, data_size, 1, output_file);
+
+    fclose(output_file);
+    fclose(input_file);
+    return 0;
+}

test.md

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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width">
+        <title>Test Mega Markdown</title>
+    </head>
+    <body>
+        # Mega Markdown
+
+        ## Introduction
+        ##grotext
+
+        # Title 1
+        ## Title 2
+        ### Title 3
+        #### Title 4
+        ##### Title 5
+        ###### Title 6
+        ####### Title 7
+        ######## Title 8
+    </body>
+</html>