working on parser

[taskasaur.git] / parser.c

diff --git a/parser.c b/parser.c
index 9a2c7f9..6f597f2 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -1,14 +1,22 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <md4c.h>
-
-typedef struct TodoItem {
-    char* name;
-    char* description;
-    char* due;
-    char** items;
-} TodoItem;
+
+#include "headers/parser.h"
+
+typedef struct State {
+    Board* board;
+    TodoList* cur_todolist;
+    TodoItem* cur_todoitem;
+    /* for use during processing */
+    char* last_block_text;
+} State;
+
+char* read_file(char* file_name, long* size);
+
+/* processing */
+void enter_todolist();
+void exit_todolist();
+
+void enter_todoitem();
+void exit_todoitem();
 
 /* callbacks to parser */
 int enter_block(MD_BLOCKTYPE type, void* detail, void* userdata);
@@ -19,7 +27,7 @@ int text(MD_TEXTTYPE type, const MD_CHAR* text, MD_SIZE size, void* userdata);
 void debug_log(const char* msg, void* userdata);
 void syntax(void);
 
-static MD_PARSER parser = {
+const MD_PARSER parser = {
     0,
     MD_DIALECT_COMMONMARK,
     &enter_block,
@@ -31,20 +39,65 @@ static MD_PARSER parser = {
     &syntax
 };
 
-static char task_md[] = "###";
-int
-main(int argc, char** argv)
-{
-    FILE* input_file;
-    int todo_length;
+char*
+read_file(char* file_name, long* size) 
+{ // apparently using seek isnt the greatest, may change to chunk reading later
+    FILE* file;
+    char* output;
+    long fsize;
+
+    file = fopen(file_name, "r");
+    if (file == NULL) {
+        printf("Something went wrong opening file\n");
+        return NULL;
+    }
+
+    fseek(file, 0, SEEK_END);
+    fsize = ftell(file);
+    fseek(file, 0, SEEK_SET);
 
-    input_file = fopen("test_board.md", "r");     
-    if (!input_file) {
-        printf("Something went wrong opening file");
-        return 1;
+    output = malloc(fsize+1); // maybe error check malloc
+    fread(output, 1, fsize, file);
+    if (ferror(file)) {
+        printf("Something went wrong reading file\n");
+        fclose(file);
+        free(output);
+        return NULL;
     }
+    output[fsize] = 0; // add null terminator
+    
+    /* clean up */
+    fclose(file);
 
-    return 0;    
+    /* return */
+    *size = fsize;
+    return output;
+}
+
+Board*
+begin_parse(char* board_path)
+{
+    const char* input_buffer;
+    long input_size;
+    State* state;
+
+    /* read entire file */
+    input_buffer = read_file(board_path, &input_size);
+
+    /* setup state */
+    state = malloc(sizeof(State));
+    state->cur_todolist = NULL;
+    state->cur_todoitem = NULL;
+
+    state->board = malloc(sizeof(Board));
+    state->board->todolist_list = malloc(0);
+    state->board->todolist_count = 0;
+
+    md_parse(input_buffer, input_size, &parser, state);
+
+    free((char*)input_buffer);
+
+    return state->board;
 }
 
 int
@@ -56,6 +109,31 @@ enter_block(MD_BLOCKTYPE type, void* detail, void* userdata)
 int
 leave_block(MD_BLOCKTYPE type, void* detail, void* userdata)
 {
+    State* state;
+    state = (State*)userdata;
+
+    switch (type) {
+
+        case MD_BLOCK_H:
+
+            switch(((MD_BLOCK_H_DETAIL*)detail)->level) {
+
+                case 1:
+                    printf("leave h1, %s\n", state->last_block_text);
+                
+                case 2:
+                    printf("leave h2, %s\n", state->last_block_text);
+                    break;
+                case 3:
+                    printf("leave h3, %s\n", state->last_block_text);
+                    break;
+
+            }
+
+            break;
+
+        // no need for default case for now :>
+    }
     return 0;
 }
 
@@ -73,12 +151,26 @@ leave_span(MD_SPANTYPE type, void* detail, void* userdata)
 
 int
 text(MD_TEXTTYPE type, const MD_CHAR* text, MD_SIZE size, void* userdata){
+
+    State* state;
+    char* content;
+
+    state = (State*)userdata;
+
+    content = malloc(size*sizeof(char)+1);
+    memcpy(content, text, size);
+    content[size] = 0;
+
+    /* printf("%s\n", content); */
+    state->last_block_text = content;
+    
     return 0;
 }
 
 void
 debug_log(const char* msg, void* userdata)
 {
+    printf(msg);
     return;
 }