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/*
* Copyright (c) 2011, 2012 Steven Oliver <oliver.steven@gmail.com>
*
* This source code is released for free distribution under the terms of the
* GNU General Public License version 2 or (at your option) any later version.
*
* This module contains functions for generating tags for Falcon language
* files.
*/
/*
* INCLUDE FILES
*/
#include "general.h"
#include <string.h>
#include <ctype.h>
#include "read.h"
#include "kind.h"
#include "parse.h"
#include "routines.h"
/*
* Data Definitions
*/
typedef enum eFalconKinds {
K_CLASS,
K_FUNCTION,
K_MEMBER,
K_VARIABLE,
K_NAMESPACE
} falconKind;
static kindDefinition FalconKinds [] = {
{true, 'c', "class", "classes" },
{true, 'f', "function", "functions"},
{true, 'm', "member", "class members"},
{true, 'v', "variable", "variables"},
{true, 'i', "namespace", "imports"}
};
/*
* Function Definitions
*/
static bool isIdentifierChar (int c)
{
return (bool) (isalnum (c));
}
static const unsigned char *skipSpace (const unsigned char *cp)
{
while (isspace ((int) *cp))
++cp;
return cp;
}
/*
* Main parsing function
*/
static void findFalconTags (void)
{
vString *name = vStringNew ();
const unsigned char *line;
while ((line = readLineFromInputFile ()) != NULL)
{
const unsigned char *cp = line;
// Skip lines starting with # which in falcon
// would only be the "crunch bang" statement
if (*cp == '#')
continue;
if (strncmp ((const char*) cp, "function", (size_t) 8) == 0)
{
cp += 8;
cp = skipSpace (cp);
while (isIdentifierChar ((int) *cp))
{
vStringPut (name, (int) *cp);
++cp;
}
makeSimpleTag (name, K_FUNCTION);
vStringClear (name);
}
else if (strncmp ((const char*) cp, "class", (size_t) 5) == 0)
{
cp += 5;
cp = skipSpace (cp);
while (isIdentifierChar ((int) *cp))
{
vStringPut (name, (int) *cp);
++cp;
}
makeSimpleTag (name, K_CLASS);
vStringClear (name);
}
else if (strncmp ((const char*) cp, "load", (size_t) 4) == 0)
{
cp += 4;
cp = skipSpace (cp);
while (isIdentifierChar ((int) *cp))
{
vStringPut (name, (int) *cp);
++cp;
}
makeSimpleTag (name, K_NAMESPACE);
vStringClear (name);
}
else if (strncmp ((const char*) cp, "import from", (size_t) 11) == 0)
{
cp += 12;
cp = skipSpace (cp);
while (isIdentifierChar ((int) *cp))
{
vStringPut (name, (int) *cp);
++cp;
}
makeSimpleTag (name, K_NAMESPACE);
vStringClear (name);
}
}
vStringDelete (name);
}
/*
* Parser definition structure
*/
extern parserDefinition* FalconParser (void)
{
static const char *const extensions [] = { "fal", "ftd", NULL };
parserDefinition *def = parserNew ("Falcon");
def->kindTable = FalconKinds;
def->kindCount = ARRAY_SIZE (FalconKinds);
def->extensions = extensions;
def->parser = findFalconTags;
return def;
}
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