/*
 *	 Copyright (c) 2007, Ritchie Turner
 *
 *	 This source code is released for free distribution under the terms of the
 *	 GNU General Public License.
 *
 * 		borrowed from PHP
 */

/*
 *	 INCLUDE FILES
 */
#include "general.h"	/* must always come first */
#include <ctype.h>	/* to define isalpha () */
#include <setjmp.h>
#ifdef DEBUG
#include <stdio.h>
#endif
#include <string.h>
#include "main.h"
#include "entry.h"
#include "keyword.h"
#include "parse.h"
#include "read.h"
#include "vstring.h"

/*
 *	 MACROS
 */
#define isType(token,t)		(boolean) ((token)->type == (t))
#define isKeyword(token,k)	(boolean) ((token)->keyword == (k))

/*
 *	DATA DEFINITIONS
 */

//static jmp_buf Exception;

typedef enum {
	HXTAG_METHODS,
	HXTAG_CLASS,
	HXTAG_ENUM,
	HXTAG_VARIABLE,
	HXTAG_INTERFACE,
	HXTAG_COUNT
} hxKind;

static kindOption HxKinds [] = {
	{ TRUE,  'm', "method",	  "methods"			   },
	{ TRUE,  'c', "class",		  "classes"			   },
	{ TRUE,  'e', "enums",		  "enumerations"			   },
	{ TRUE,  'v', "variable",	  "variables"	   },
	{ TRUE,  'i', "interface",	  "interfaces"	   }

};

static void findHxTags (void)
{
    vString *name = vStringNew ();
    vString *clsName = vStringNew();
    vString *scope2 = vStringNew();
    vString *laccess = vStringNew();
    const char *const priv = "private";
    const char *const pub = "public";

    const unsigned char *line;

    while ((line = fileReadLine ()) != NULL)
    {
	const unsigned char *cp = line;
another:
	while (isspace (*cp))
	    cp++;

	vStringCopyS(laccess,priv);

	if (strncmp ((const char*) cp, "var", (size_t) 3) == 0  &&
	    isspace ((int) cp [3]))
	{
	    cp += 3;

	    while (isspace ((int) *cp))
		++cp;

	    vStringClear (name);
	    while (isalnum ((int) *cp)  ||  *cp == '_')
	    {
		vStringPut (name, (int) *cp);
		++cp;
	    }
	    vStringTerminate (name);
	    makeSimpleTag (name, HxKinds, HXTAG_VARIABLE);
	    /*
	     makeSimpleScopedTag(name, HxKinds,
	     		HXTAG_VARIABLE,vStringValue(clsName),
	     		strdup(vStringValue(scope2)),strdup(vStringValue(laccess)));
	     */

	    vStringClear (name);
	}
	else if (strncmp ((const char*) cp, "function", (size_t) 8) == 0  &&
	    isspace ((int) cp [8]))
	{
	    cp += 8;

	    while (isspace ((int) *cp))
		++cp;

	    vStringClear (name);
	    while (isalnum ((int) *cp)  ||  *cp == '_')
	    {
		vStringPut (name, (int) *cp);
		++cp;
	    }
	    vStringTerminate (name);
	    makeSimpleTag (name, HxKinds, HXTAG_METHODS);
	    /*
	    makeSimpleScopedTag(name, HxKinds, HXTAG_METHODS,
	    	strdup(vStringValue(clsName)),strdup(vStringValue(scope2)),strdup(vStringValue(laccess)));

	    */

	    vStringClear (name);
	}
	else if (strncmp ((const char*) cp, "class", (size_t) 5) == 0 &&
		 isspace ((int) cp [5]))
	{
	    cp += 5;

	    while (isspace ((int) *cp))
		++cp;
	    vStringClear (name);
	    while (isalnum ((int) *cp)  ||  *cp == '_')
	    {
		vStringPut (name, (int) *cp);
		++cp;
	    }
	    vStringTerminate (name);
	    makeSimpleTag (name, HxKinds, HXTAG_CLASS);
	    vStringCopy(clsName,name);
	    vStringClear (name);
	}
	else if (strncmp ((const char*) cp, "enum", (size_t) 4) == 0 &&
	          isspace ((int) cp [4]))
	{
	    cp += 4;

	   while (isspace ((int) *cp))
		++cp;
	    vStringClear (name);
	    while (isalnum ((int) *cp)  ||  *cp == '_')
	    {
		vStringPut (name, (int) *cp);
		++cp;
	    }
	    vStringTerminate (name);
	    makeSimpleTag (name, HxKinds, HXTAG_ENUM);
	    vStringClear (name);
	} else if (strncmp ((const char*) cp, "public", (size_t) 6) == 0 &&
	         isspace((int) cp [6]))
	{
	          cp += 6;
	    	while (isspace ((int) *cp))
				++cp;
			vStringCopyS(laccess,pub);
	         goto another;
	 } else if (strncmp ((const char*) cp, "static", (size_t) 6) == 0 &&
	         isspace((int) cp [6]))
	 {
	          cp += 6;
	    	while (isspace ((int) *cp))
				++cp;
	         goto another;
	 } else if (strncmp ((const char*) cp, "interface", (size_t) 9) == 0 &&
	         isspace((int) cp [9]))
	 {
	          cp += 9;

	    while (isspace ((int) *cp))
			++cp;
	    vStringClear (name);
	    while (isalnum ((int) *cp)  ||  *cp == '_') {
			vStringPut (name, (int) *cp);
			++cp;
	    }
	    vStringTerminate (name);
	    makeSimpleTag (name, HxKinds, HXTAG_INTERFACE);
	    vStringClear (name);
	 }


    }

    vStringDelete (name);
    vStringDelete(clsName);
    vStringDelete(scope2);
    vStringDelete(laccess);
}


/* Create parser definition stucture */
extern parserDefinition* HaxeParser (void)
{
	static const char *const extensions [] = { "hx", NULL };

	parserDefinition *const def = parserNew ("Haxe");
	def->extensions = extensions;
	/*
	 * New definitions for parsing instead of regex
	 */
	def->kinds		= HxKinds;
	def->kindCount	= KIND_COUNT (HxKinds);
	def->parser		= findHxTags;
	//def->initialize = initialize;
	return def;
}