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/*
*
* Copyright (c) 2000-2001, Thaddeus Covert <sahuagin@mediaone.net>
*
* 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 Ruby language
* files.
*/
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include <string.h>
#include "parse.h"
#include "read.h"
#include "vstring.h"
/*
* DATA DEFINITIONS
*/
typedef enum {
K_CLASS, K_FUNCTION
} rubyKind;
static kindOption RubyKinds [] = {
{ TRUE, 'c', "class", "classes" },
{ TRUE, 'f', "function", "functions" },
{ TRUE, 'm', "mixin", "mixins" }
};
/*
* FUNCTION DEFINITIONS
*/
static void findRubyTags (void)
{
vString *name = vStringNew ();
const unsigned char *line;
boolean inMultilineString = FALSE;
while ((line = fileReadLine ()) != NULL)
{
const unsigned char *cp = line;
while (*cp != '\0')
{
if (*cp=='"' &&
strncmp ((const char*) cp, "\"\"\"", (size_t) 3) == 0)
{
inMultilineString = (boolean) !inMultilineString;
cp += 3;
}
/* make sure you include the comments */
if(*cp=='=' && strncmp((const char*)cp, "==begin", (size_t)7) == 0)
{
inMultilineString = (boolean)!inMultilineString;
cp +=3;
}
/* mark the end of a comment */
if( *cp=='=' && strncmp((const char*)cp, "==end", (size_t)5) == 0)
{
inMultilineString = (boolean)0;
cp+=5;
}
if (inMultilineString || isspace ((int) *cp))
++cp;
else if (*cp == '#')
break;
else if (strncmp ((const char*) cp, "class", (size_t) 5) == 0)
{
cp += 5;
if (isspace ((int) *cp))
{
while (isspace ((int) *cp))
++cp;
while (isalnum ((int) *cp) || *cp == '_')
{
vStringPut (name, (int) *cp);
++cp;
}
vStringTerminate (name);
makeSimpleTag (name, RubyKinds, K_CLASS);
vStringClear (name);
}
}
else if (strncmp ((const char*) cp, "def", (size_t) 3) == 0)
{
cp += 3;
if (isspace ((int) *cp))
{
while (isspace ((int) *cp))
++cp;
/* Put the valid characters allowed in a variable name
* in here. In ruby a variable name ENDING in ! means
* it changes the underlying data structure in place.
* A variable name ENDING in ? means that the function
* returns a bool. Functions should not start with these
* characters.
*/
while (isalnum ((int) *cp) || *cp == '_' ||
*cp == '!' || *cp =='?')
{
vStringPut (name, (int) *cp);
++cp;
}
vStringTerminate (name);
makeSimpleTag (name, RubyKinds, K_FUNCTION);
vStringClear (name);
}
}
else if (*cp != '\0')
{
do
++cp;
while (isalnum ((int) *cp) || *cp == '_');
}
}
}
vStringDelete (name);
}
extern parserDefinition* RubyParser (void)
{
static const char *const extensions [] = { "rb", NULL };
parserDefinition* def = parserNew ("Ruby");
def->kinds = RubyKinds;
def->kindCount = KIND_COUNT (RubyKinds);
def->extensions = extensions;
def->parser = findRubyTags;
return def;
}
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