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/*
* $Id: make.c,v 1.2 2002/02/17 06:04:32 darren Exp $
*
* Copyright (c) 2000-2002, Darren Hiebert
*
* This source code is released for free distribution under the terms of the
* GNU General Public License.
*
* This module contains functions for generating tags for makefiles.
*/
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include <ctype.h>
#include "parse.h"
#include "read.h"
#include "vstring.h"
/*
* DATA DEFINITIONS
*/
typedef enum {
K_MACRO
} shKind;
static kindOption MakeKinds [] = {
{ TRUE, 'm', "macro", "macros"}
};
/*
* FUNCTION DEFINITIONS
*/
static boolean isIdentifier (int c)
{
return (boolean)(isalnum (c) || c == '_');
}
static void findMakeTags (void)
{
vString *name = vStringNew ();
const unsigned char *line;
while ((line = fileReadLine ()) != NULL)
{
const unsigned char* cp = line;
boolean possible = TRUE;
while (isspace ((int) *cp))
++cp;
if (*cp == '#')
continue;
while (*cp != '\0')
{
/* We look for any sequence of identifier characters following
* either a white space or a colon and followed by either = or :=
*/
if (possible && isIdentifier ((int) *cp))
{
while (isIdentifier ((int) *cp))
{
vStringPut (name, (int) *cp);
++cp;
}
vStringTerminate (name);
while (isspace ((int) *cp))
++cp;
if ( *cp == ':')
++cp;
if ( *cp == '=')
makeSimpleTag (name, MakeKinds, K_MACRO);
vStringClear (name);
}
else if (isspace ((int) *cp) || *cp == ':')
possible = TRUE;
else
possible = FALSE;
if (*cp != '\0')
++cp;
}
}
vStringDelete (name);
}
extern parserDefinition* MakefileParser (void)
{
static const char *const patterns [] = { "[Mm]akefile", NULL };
static const char *const extensions [] = { "mak", NULL };
parserDefinition* const def = parserNew ("Make");
def->kinds = MakeKinds;
def->kindCount = KIND_COUNT (MakeKinds);
def->patterns = patterns;
def->extensions = extensions;
def->parser = findMakeTags;
return def;
}
/* vi:set tabstop=8 shiftwidth=4: */
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