cosmopolitan/third_party/ctags/awk.c
2022-11-13 13:26:28 -08:00

84 lines
1.7 KiB
C

// clang-format off
/*
* $Id: awk.c 443 2006-05-30 04:37:13Z darren $
*
* 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 AWK functions.
*/
/*
* INCLUDE FILES
*/
#include "third_party/ctags/general.h" /* must always come first */
#include "libc/mem/alg.h"
#include "libc/str/str.h"
#include "third_party/ctags/parse.h"
#include "third_party/ctags/read.h"
#include "third_party/ctags/vstring.h"
/*
* DATA DEFINITIONS
*/
typedef enum eAwkKinds {
K_FUNCTION
} awkKind;
static kindOption AwkKinds [] = {
{ TRUE, 'f', "function", "functions" }
};
/*
* FUNCTION DEFINITIONS
*/
static void findAwkTags (void)
{
vString *name = vStringNew ();
const unsigned char *line;
while ((line = fileReadLine ()) != NULL)
{
if (strncmp ((const char*) line, "function", (size_t) 8) == 0 &&
isspace ((int) line [8]))
{
const unsigned char *cp = line + 8;
while (isspace ((int) *cp))
++cp;
while (isalnum ((int) *cp) || *cp == '_')
{
vStringPut (name, (int) *cp);
++cp;
}
vStringTerminate (name);
while (isspace ((int) *cp))
++cp;
if (*cp == '(')
makeSimpleTag (name, AwkKinds, K_FUNCTION);
vStringClear (name);
if (*cp != '\0')
++cp;
}
}
vStringDelete (name);
}
extern parserDefinition* AwkParser ()
{
static const char *const extensions [] = { "awk", "gawk", "mawk", NULL };
parserDefinition* def = parserNew ("Awk");
def->kinds = AwkKinds;
def->kindCount = KIND_COUNT (AwkKinds);
def->extensions = extensions;
def->parser = findAwkTags;
return def;
}
/* vi:set tabstop=4 shiftwidth=4: */