cosmopolitan/third_party/ctags/tcl.c

92 lines
2.6 KiB
C

/*
* $Id: tcl.c 443 2006-05-30 04:37:13Z darren $
*
* Copyright (c) 2000-2003, 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 TCL scripts.
*/
#include "third_party/ctags/general.h"
/* must always come first */
#include "third_party/ctags/parse.h"
#include "third_party/ctags/read.h"
#include "third_party/ctags/vstring.h"
/*
* DATA DEFINITIONS
*/
typedef enum { K_CLASS, K_METHOD, K_PROCEDURE } tclKind;
static kindOption TclKinds[] = {{TRUE, 'c', "class", "classes"},
{TRUE, 'm', "method", "methods"},
{TRUE, 'p', "procedure", "procedures"}};
/*
* FUNCTION DEFINITIONS
*/
static const unsigned char *makeTclTag(const unsigned char *cp,
vString *const name,
const tclKind kind) {
vStringClear(name);
while ((int)*cp != '\0' && !isspace((int)*cp)) {
vStringPut(name, (int)*cp);
++cp;
}
vStringTerminate(name);
makeSimpleTag(name, TclKinds, kind);
return cp;
}
static boolean match(const unsigned char *line, const char *word) {
return (boolean)(strncmp((const char *)line, word, strlen(word)) == 0);
}
static void findTclTags(void) {
vString *name = vStringNew();
const unsigned char *line;
while ((line = fileReadLine()) != NULL) {
const unsigned char *cp;
while (isspace(line[0])) ++line;
if (line[0] == '\0' || line[0] == '#') continue;
/* read first word */
for (cp = line; *cp != '\0' && !isspace((int)*cp); ++cp)
;
if (!isspace((int)*cp)) continue;
while (isspace((int)*cp)) ++cp;
/* Now `line' points at first word and `cp' points at next word */
if (match(line, "proc"))
cp = makeTclTag(cp, name, K_PROCEDURE);
else if (match(line, "class") || match(line, "itcl::class"))
cp = makeTclTag(cp, name, K_CLASS);
else if (match(line, "public") || match(line, "protected") ||
match(line, "private")) {
if (match(cp, "method")) {
cp += 6;
while (isspace((int)*cp)) ++cp;
cp = makeTclTag(cp, name, K_METHOD);
}
}
}
vStringDelete(name);
}
extern parserDefinition *TclParser(void) {
static const char *const extensions[] = {"tcl", "tk", "wish", "itcl", NULL};
parserDefinition *def = parserNew("Tcl");
def->kinds = TclKinds;
def->kindCount = KIND_COUNT(TclKinds);
def->extensions = extensions;
def->parser = findTclTags;
return def;
}
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